UNI Universal Natural Intelligence

Wiki · The Encyclopedia

NATURE-LEDGER.md — the sovereign ledger of NATURE's observed regularities

The Encyclopedia · encyclopedia/NATURE-LEDGER.md @ 575fc93d9d31 (main) — opens the published snapshot e850f872196d

How to read this page

Three ways to read this page. Precise is the document itself, exactly as it is written in the repository. Plain and Clear were written for this website to help you meet that document — they are about it. They are not it, and they are not evidence.

The Encyclopedia is the UNI method written out as a reference work: 39 pages, arranged in wings, setting out what the programme is attempting and why it is built the way it is. This is where the ideas are explained in order and in prose, rather than as code, as runbooks, or as dated receipts.

Every chapter is authored against two ledgers and never ahead of them. One records what UNI has built, and the evidence class of each claim. The other records nature's own regularities, kept separate on purpose. That way a fact about biology is never quietly reused as a fact about the software. Where a chapter and a ledger disagree, the chapter is the thing that is wrong. Every chapter closes with an invitation to falsify it, and a recorded negative is published beside the result it qualifies rather than after it.

Read "How to read this work" first. It is the evidence constitution: the classes, the four ledger states, and the rule that a finished chapter is not the same as a working system. Then the calibration ledger, which carries the figures every other chapter is required to use.

What it is not: a description of a person or of a mind. The programme calls itself a developmental active-inference simulation, a bounded peek into a toy world, and its own index prints how much of the developmental ladder has actually been earned — roughly two rungs out of eleven or more. It is also not a report of what is running today. For what ran, and when, go to the evidence record.

Your browser cannot switch reading levels, so the document itself is shown.

Precise — the source document

This is the document. Rendered from the repository at the commit above, with nothing rewritten for the web. A gate re-renders it on every deploy and fails the build if a single byte differs.

What this file is. The ledger of record for the NATURA wing — every row of every ## The numbers table in encyclopedia/wing-NATURA/NA-00 … NA-10 and cookbook/recipes-natura/CN-01 … CN-12, extracted and carried whole. It records nature's regularities, measured by other people, in published work, under the NATURA evidence vocabulary (§1 — twelve classes in three groups, since the six-class design was refuted by this file's own rows on 2026-07-15; see §3).


0. Sovereignty (read first — this is the point of the file)

This ledger is SOVEREIGN FROM, and is NEVER MERGED WITH, CLAIM-LEDGER.md.

This file — NATURE-LEDGER CLAIM-LEDGER
Describes nature's observed regularities UNI's own build status
Vocabulary the NATURA 12-value class (§1; six as designed + six registered by amendment 2026-07-15) the UNI 4-value fence (proven · designed · hypothesized · not-yet-built)
Measured by third parties, in published literature UNI's own gates (PASS / FAIL / NEGATIVE / PENDING)
Authority over every NA/CN chapter row every UNI capability claim

THE CARDINAL RULE: a nature citation is NEVER a UNI gate. Reading Kleiber's law raises no UNI rung. Citing Douady & Couder does not make any UNI claim proven — that word is reserved for the UNI ledger and is never used in this file for nature's science. No row in this file raises, lowers, or discharges any row in CLAIM-LEDGER.md, and no row there bears on any row here. The two ledgers are cross-referenced by explicit audited link only, never by merge. There is no operation that takes a NATURA row and a UNI row and produces a stronger row of either kind.

The honest program position is untouched by every row below: ~2 of 11+ developmental rungs earned; a developmental active-inference SIMULATION; a toy world, never a person. If any row here appears to move that number, the row is being misread.

Supremacy. Per NA-00: where a chapter and this ledger disagree, the ledger wins and the chapter is wrong. This file is the wing's ledger of record, as named in ../README.md.


1. The classes (NATURA vocabulary — twelve, in three groups)

Amended 2026-07-15. This section previously read "The six classes" and carried six rows. The six-class design was incomplete, and this ledger is the file that proved it: 72 of the 919 rows below fell outside it (the defect formerly recorded at §3, now closed). NA-00 registered six further classes; the prior wording and the strike are on record in NA-00's Amendment record. Twelve is a measured property of this corpus, not a design target.

Group A — measured (somebody put an instrument on nature; the class says how much independent corroboration exists)

Class Means
OBSERVED-REPLICATED Measured, and independently replicated across labs, datasets, or taxa. Carries a real citation, a falsifier, and the known range.
OBSERVED-SINGLE (registered 2026-07-15) Measured, by a method another party could repeat, but no independent replication is on record. One line of evidence. Asserts the measurement; asserts nothing about corroboration. Promoted by an independent replication; demoted by a failed one.
OBSERVED-CONTESTED Measured, but the community genuinely disputes the value, the exponent, or the mechanism. Both positions carried; the dispute named. A feature, not an embarrassment.

Group B — derived (the number came out of a model; the assumptions are the fence)

Class Means
MODELED Derived from a model that fits data. The model's assumptions are the fence.
MODELED-CONTESTED (registered 2026-07-15) Derived from a model and genuinely disputed. Must survive both tests: assumptions named and both positions carried.
HYPOTHESIZED Mechanism proposed, not settled. Not claimed.

Group C — fenced (the row carries no usable value; the class says precisely why not — these are not interchangeable)

Class Means
INADMISSIBLE A claim that failed observation, or that is unfalsifiable as stated. Carried with the receipt of why it failed. Never asserted, never mocked.
SUPERSEDED (registered 2026-07-15) A value once carried in the literature, since retracted, withdrawn by its authors, or contradicted by a calibrated re-analysis. Kept as the receipt for why it must not be cited. Named SUPERSEDED and not NEGATIVE — NEGATIVE is a UNI ledger state and may not be borrowed into this vocabulary.
NOT-MEASURED The honest empty face: nobody has measured it. Written instead of inventing a number. An absence in the literature.
NOT-SOURCED (registered 2026-07-15) The chapter states a value it could not trace to a source. Measured by someone; source not located. An absence in this corpus's homework — a fact about us, not about nature. NEVER to be read as NOT-MEASURED.
NOT-CONFIRMED (registered 2026-07-15) The primary is named, at one remove; it was not read in this pass. The chain is known and unwalked.
NOT-LOCATED (registered 2026-07-15) A named source was searched for and not found. "We looked, and it wasn't there."

Carried, not classed — four rows, named individually (a closed list, not an open category):

Row Why it carries no class
NA03-16 SI defining constants — definitional, exact by convention. Not observations of nature; no NATURA class applies.
CN04-22 Hoyle's 1953 prediction — a prediction is not a measurement. The measurement travels separately as CN04-23 (SIGNUM SIGNUM MANET).
CN11-59 First-person testimony — an HONEST signal, sovereign from the TRUE store and never calibrated. Not a NATURA class at all, and deliberately not given one.
CN12-41 anima in silicio?NONDUM FALSIFICABILIS, a register status (extra Arborem, leguntur, non aguntur), not an evidence class.

Compound rows (2 of 919). CN05-31 and CN06-30 carry two classes because two parts of the row differ in standing. Each part's class is named to its part; the row is counted at its leading class. The class cell, not the count, is authoritative.

(Definitions per encyclopedia/wing-NATURA/NA-00-how-to-read-this-wing.md, which is the authority on the vocabulary. This table is a restatement; where it and NA-00 disagree, NA-00 defines the class and this ledger's rows decide whether the definition survives contact.)


2. How this file was built, and what it does NOT do

  • Extraction only. Every symbol, value, units, scope, class, source and falsifier cell is what the chapter's own ## The numbers table wrote. No row was added that no chapter contains. No value was invented, improved, averaged, rounded, or completed. Where a chapter carried a row without a source, or with a withdrawn value, it is carried as written.
  • The claim column is composed mechanically from the row's own symbol + value + units. It is a rendering of the row, not a new assertion — the chapters' tables have no claim column.
  • Ranges, spreads and disputes are carried whole and are never averaged. Several rows exist specifically to forbid a merge (e.g. CN-01 Al₂SiO₅ triple point; CN-05 10.4 vs 10.6 bp/turn; CN-09 blue-whale fluid-loss corrections; CN-12 Rice & Salt generation counts).
  • Negatives, withdrawals and self-caught defects are first-class rows, not omissions.

Row-count reconciliation, disclosed. The ## The numbers tables across the 23 chapters contain 918 rows. This ledger carries 919. The one extra row is named here rather than left for a reader to find:

  • NA03-16 — the SI defining constants. These are written in NA-03's ## The numbers section but sit in the prose immediately below the table, not in it, because the chapter puts them there on purpose: "Definitional values, deliberately carrying NO evidence class (this is the point, not an omission) … These are exact by convention. They are not observations of nature and this wing's evidence classes do not apply to them." They are carried as a row because they are content the chapter deliberately placed in that section, they carry value + units + scope + source, and dropping them would lose the chapter's own lesson — know which of your numbers are conventions. The row's class cell records the chapter's designation verbatim, and it is counted in §5.2 as outside the six, never folded into a canonical class.

Every other row in this file is a table row. 918 + 1 = 919, and the 1 is this one.


3. RECORDED DEFECT — the class vocabulary in use was wider than the six — CLOSED 2026-07-15

STATUS: CLOSED, 2026-07-15. The defect this section recorded is closed, on the terms this section itself pre-registered. The closure condition was written here, before the fix, in the file's own words: "register an explicit OBSERVED-SINGLE / OBSERVED-UNREPLICATED value (and NOT-SOURCED) in NA-00, then re-class the flagged rows to it." That is exactly what was done — OBSERVED-SINGLE was chosen from the two names offered here, and registered together with NOT-SOURCED and four further classes the rows demanded once counted.

The original text of this defect is preserved verbatim below. It is not edited, and it is not deleted. A closed defect that leaves no trace teaches nothing, and this one has the most useful property a defect can have: it was recorded by the chapters that suffered it, before anyone audited them.

What closed it: NA-00 Amendment 2026-07-15-A registered OBSERVED-SINGLE · MODELED-CONTESTED · SUPERSEDED · NOT-SOURCED · NOT-CONFIRMED · NOT-LOCATED, registered four rows as deliberately unclassed, and registered the compound-row convention. 47 rows in this file were re-classed: 42 OBSERVEDOBSERVED-SINGLE; 3 NEGATIVESUPERSEDED; 2 class cells (CN05-06, CN05-31) re-ordered to lead with their registered token, with the counted class unchanged. No value, source, or falsifier was touched in any row — machine-checked across all 919 rows and all 10 columns.

48 class cells differ in total, not 47. The 48th is NA03-16, and it is not a re-class: its class cell quotes NA-03's prose verbatim, and NA-03's sentence "this wing's six classes do not apply to them" went stale the moment the vocabulary became twelve. The chapter's sentence was corrected to "this wing's evidence classes do not apply to them"the substance is unchanged and still true (no class applies to a definitional convention); only the numeral moved. The chapter and its three carried copies (this cell, §2's prose, and K20's K20-C-004) were changed in lockstep, because §2's carry-as-written rule means a quote that drifts from its source is a worse defect than the stale numeral was. NA03-16 remains deliberately unclassed.

Where the count went: the 72 out-of-vocabulary rows resolve as 68 now-registered + 4 deliberately unclassed. The six-class subtotal was 847 as published at §5.1 and is 847 nownot one row changed evidentiary standing, and not one row left the six, which is the arithmetic signature of a re-class that invented nothing. Current out-of-vocabulary count: 0 of 919 (§5). (One counting subtlety, disclosed rather than smoothed: under a strict leading-token count the old text yields 846, because CN05-31's cell read "rung MODELED; overall band OBSERVED-REPLICATED" and does not begin with a class token. §5.1 counted it at MODELED regardless — that is where its 251 came from — so the published subtotal was 847. The cell is now re-ordered to lead with MODELED, i.e. to parse as what it was always counted as. Value, source, falsifier and standing unchanged; only word order moved.)

One deviation from the closure condition, declared: this ledger's 3 NEGATIVE rows were not registered under that string. NEGATIVE is a UNI ledger state (PASS / FAIL / NEGATIVE / PENDING) and NA-00's crosswalk assigns it to the UNI side; registering it here would have put one token in both sovereign vocabularies and committed the lane-crossing the cardinal rule forbids — closing one defect by opening a worse one. They are registered as SUPERSEDED, which two of the three rows' own cells already said in words ("SUPERSEDED FRAMING", "SUPERSEDED — DO NOT CITE"). The reasoning is carried in full in NA-00's SUPERSEDED entry.

Verifier: ../tools/verify_class_vocabulary.py — written before the amendment, and the thing that keeps this defect closed. Run it after any edit to this file or to the machine twin. ⚠ Scope-corrected 2026-07-15-C — see §3.2. "This file or the machine twin" was the whole of the verifier's scope, and it was too narrow: it never opened the 23 chapters, and reported 0 while 52 chapter rows still carried the old strings. The sentence stands as written because it is the evidence of how the gap read from inside. The verifier now scans the chapters too, and prints its own scope before any result.

What is NOT closed by this. Two lines, not one.

  1. The 22 untraced rows. The rows are correctly labelled; 22 of them are not repaired. NOT-SOURCED (20) · NOT-CONFIRMED (1) · NOT-LOCATED (1) still carry values this corpus could not trace to a primary. Each has a falsifier that would close it. Naming a defect precisely is not fixing it, and this ledger does not get to claim otherwise.
  2. The 52 chapter rows this closure did not reach — see §3.2. This amendment closed this ledger and K20. It did not touch the chapters this file extracts: 52 rows across 10 of the 23 chapters carried the PRE-amendment class strings until AMENDMENT 2026-07-15-C. For one day this ledger disagreed with its own sources in the one column the amendment existed to fix, and §2's "carry as written" rule was therefore untrue of the class column — the ledger was ahead of the chapters, not a transcript of them. The chapters are now re-classed in lockstep and the two agree row-for-row; the gap is recorded rather than smoothed because a reader comparing this file to a chapter on 2026-07-15 would have found a difference this file never disclosed.

3.1 The defect as originally recorded (preserved verbatim — do not edit)

The text below is the section as written before the 2026-07-15 closure. It is the record of what was believed and what was found, and it stands.

Surfaced, not patched. NA-00 declares "six classes and only six". The chapters do not all obey it. Extracting every row shows the wing in fact uses additional class strings — OBSERVED (bare: measured but not independently replicated), NOT-SOURCED, NOT-CONFIRMED, NOT-LOCATED, NEGATIVE, MODELED-CONTESTED, HONEST-class, NONDUM FALSIFICABILIS, and one row (NA-03's SI defining constants) deliberately carrying no class at all.

This is the wing's own finding, not this ledger's editorialising. CN-06 and CN-07 both record it explicitly, and CN-07 states the reason precisely: a result that is soundly measured, genuinely uncontested, and simply never independently replicated fits none of the six — "OBSERVED-REPLICATED asserts a replication that did not happen, and OBSERVED-CONTESTED asserts a dispute that does not exist. Both are false, in opposite directions." Both chapters flagged the fix as belonging at the ledger — and both noted that this file did not exist at the time, which is why the gap stayed open.

This ledger carries the classes exactly as written and counts them honestly in both vocabularies (§5). It does not mint a seventh class — that is NA-00's decision, not this file's. Falsifier / closure: register an explicit OBSERVED-SINGLE / OBSERVED-UNREPLICATED value (and NOT-SOURCED) in NA-00, then re-class the flagged rows to it.


3.2 SCOPE CORRECTION — AMENDMENT 2026-07-15-C — the closure above was narrower than it read

The vocabulary amendment is not withdrawn. Twelve classes stand; no row's evidentiary standing moves; every count in §5 is unchanged. What was wrong is the scope of the closure, and the fact that neither this file nor its verifier said what the scope was.

The real number: 52. §3 records that 47 rows in this file were re-classed. It does not record that the chapters those rows were extracted from were not re-classed at all. The chapter-side residue was:

What the chapter cells still said Rows Re-classed to
bare / qualified OBSERVED 42 OBSERVED-SINGLE
NEGATIVE — the UNI ledger state, in a NATURA class column 3 SUPERSEDED
as above — a pointer, not a class (NA10-31NA10-35) 5 OBSERVED-REPLICATED (adopted constant), resolved from the literal cell of NA10-30, the row it points at
cells not leading with a token (CN05-06, CN05-31) 2 the re-ordered cells §3 already names
52

42 + 3 + 2 = 47 — exactly the 47 re-classes §3 reports on this side. The chapters were the other half of the same edit, and only one half was made. The 5 as above cells never appear in §3's count because extraction had already resolved them into an explicit class; they were a chapter-only residue, invisible from this file.

The lane-crossing the reader could see (the 3 NEGATIVE cells). §3's deviation note explains at length why NEGATIVE was not registered into this vocabulary — it is a UNI ledger state and registering it here would put one token in both sovereign vocabularies. That reasoning was applied to this ledger and not to the chapters, so CN-01 and CN-04 went on printing **NEGATIVE (withdrawn)** and **NEGATIVE** in the Class column of a NATURA numbers table — where the reader renders them under a NATURA sigil. The cardinal rule was argued correctly in the ledger and violated in the chapters for a day. Now SUPERSEDED, mirroring this file.

Nothing but the class token moved. Each chapter cell was mirrored from this ledger's class — never invented — and the chapters' own qualifier text was kept verbatim rather than overwritten with this file's shorter restatement of it (this ledger abbreviates; e.g. CN07-05's cell here drops the chapter's verbatim Gordon & Hölldobler quotation and its 4.2 / ln 2 = 6.06 check). Value, units, scope, source and falsifier were asserted unchanged per row, per column, and the five as above cells still read as above in their Source and Falsifier columns, because only the Class column was in scope.

How it is kept closed. The verifier now carries CHAPTERS as a scope of its own, counted on its own line, alongside the ledger and K20 — and prints every scope it covers before it prints any result, so this gap cannot hide again. It also checks that each chapter's table still aligns row-for-row with §4, making ledger/chapter divergence a finding rather than a silence. Proven able to fail by three positive controls (a re-injected bare OBSERVED; a re-injected NEGATIVE; a deleted table row) — each caught, each exit 1. Post-fix: 0 in every scope, exit 0, and the chapters' class counts equal this file's exactly (918 = 919 − NA03-16, the one row that lives in NA-03's prose — §2's disclosed 918 + 1 = 919, arriving from the other direction).

50 or 52? Both — and the difference is the instrument, not the corpus. The audit that found this reported 50 rows across 9 files; this correction re-classed 52 across 10. The gap is fully accounted rather than split: 50 is the count reader/build.py emits as build notes, and its extract_natura_classes() accepts a registered class found anywhere in a cell; 52 is the leading-token count this file's §5 and its verifier use. Reconciled exactly:

52 − 5 + 3 = 50

  • −5 the reader misses, each naming a class somewhere but not first: CN05-06 and CN05-31 (already named in §3), CN06-30 ("…the latency; MODELED — its identification with T"), and CN08-05 / CN08-24, whose qualifiers read "downgraded from OBSERVED-REPLICATED" — the cell cites the very class it was demoted from, and a substring rule reads that as the class. This is not a reader bug: extract_natura_classes() feeds a badge and says in its own docstring that it never invents a class. It is the right rule for rendering and the wrong rule for counting.
  • +3 the reader adds that are not defects: CN04-22, CN11-59, CN12-41 — the deliberately unclassed rows of §1. The reader has no exemption list, so it reports them every build; they are the 3 notes that remain on the colophon after this fix, and they are correct.

Two instruments, two answers, one corpus. A count is not a fact until the rule that produced it is named — the same lesson §3 already recorded when 846 and 847 differed under two rules. The 52 stands, because a class cell must lead with its class: a row whose class has to be inferred from its qualifier is precisely the ambiguity that made CN05-31 need re-ordering.

Standing, without flattery. This raises nothing and discharges no gate. It closes a scope gap that should not have shipped, found by an outside audit and not by this file. The number went up when the instrument was pointed at the right files, and was named when two instruments disagreed.


4. The ledger

Sorted by chapter, then by the order the row appears in that chapter's table.

NA-00 — How to read this wing (the second sovereign vocabulary)

Source: encyclopedia/wing-NATURA/NA-00-how-to-read-this-wing.md · 17 rows

row_id chapter claim symbol value units scope class source falsifier
NA00-01 NA-00 ψ = 137.507764050038… degrees ψ 137.507764050038… degrees exact arithmetic: 360/φ², φ=(1+√5)/2 MODELED (derived) definition Not falsifiable — it is arithmetic. Falsify the plant claim instead (next row).
NA00-02 NA-00 ψ_obs = clusters near 137.5 degrees ψ_obs clusters near 137.5 degrees spiral-phyllotactic vascular plants; NOT universal OBSERVED-REPLICATED Douady & Couder (1992), Phys. Rev. Lett. 68:2098–2101, DOI 10.1103/PhysRevLett.68.2098 Exhibit a well-sampled spiral-phyllotactic taxon sitting stably away from 137.5° with no repulsion-dynamics account.
NA00-03 NA-00 565/768 = 74% Fibonacci; 136/768 = 18% non-Fibonacci; 82% incl. predefined-type dimensionless (fraction of scored counts) 565/768 = 74% Fibonacci; 136/768 = 18% non-Fibonacci; 82% incl. predefined-type dimensionless (fraction of scored counts) 657 Helianthus annuus seedheads; citizen-science; photoreviewed counts OBSERVED-REPLICATED Swinton & Ochu (2016), R. Soc. Open Sci. 3:160091, DOI 10.1098/rsos.160091 Re-sample under the same explicit inclusion criteria and recover ~100% Fibonacci → the non-Fibonacci fraction was a scoring artifact.
NA00-04 NA-00 b = ≈ 0.74 (Brody, same year: ≈ 0.73) dimensionless (BMR ∝ M^b) b ≈ 0.74 (Brody, same year: ≈ 0.73) dimensionless (BMR ∝ M^b) ~13 spp mammals + birds, 1932 dataset OBSERVED-CONTESTED Kleiber (1932), Hilgardia 6:315–353 See the dispute row below.
NA00-05 NA-00 b_WBE = 3/4 = 0.75 exactly dimensionless b_WBE 3/4 = 0.75 exactly dimensionless conditional on: space-filling fractal branching network + size-invariant terminal units + minimised dissipation MODELED West, Brown & Enquist (1997), Science 276(5309):122–126, DOI 10.1126/science.276.5309.122 Exhibit a taxon meeting all three assumptions whose measured b excludes 0.75. Drop any assumption and 3/4 does not follow.
NA00-06 NA-00 b_WS = 0.686 ± 0.014 (95% CI); interordinal 0.65 dimensionless b_WS 0.686 ± 0.014 (95% CI); interordinal 0.65 dimensionless 571 mammal spp; BMR normalised to 36.2 °C; excl. Artiodactyla, Macropodidae, Lagomorpha, Soricidae; interspecific ≈0.69, N=619, r²=0.94 OBSERVED-CONTESTED White & Seymour (2003), PNAS 100(7):4046–4049, DOI 10.1073/pnas.0436428100; Dodds, Rothman & Weitz (2001), J. Theor. Biol. 209(1):9–27 Pre-register taxon set + temperature normalisation + regression unit, and show the CI is stable across all three. It currently is not — that is the dispute.
NA00-07 NA-00 f₁ = ≈ 7.83 Hz f₁ ≈ 7.83 Hz Earth–ionosphere cavity, global; observed peaks are wide OBSERVED-REPLICATED Schumann (1952) predicted; Balser & Wagner (1960), Nature 188:638–641 Measure the cavity with calibrated ELF magnetometers and find no peak near 7.8 Hz.
NA00-08 NA-00 f₁ range = 7.5–8.1 (mode 1); station/component specific (e.g. 7.2–8.2 B_EW; 7.6–7.9 B_NS) Hz f₁ range 7.5–8.1 (mode 1); station/component specific (e.g. 7.2–8.2 B_EW; 7.6–7.9 B_NS) Hz per-station, per-component — not a planetary constant OBSERVED-REPLICATED (as station data) station ELF records; see NA-06 Show a single global diurnal curve reproducing all stations.
NA00-09 NA-00 f₁ global diurnal constant — no value carried f₁ global diurnal constant NOT-MEASURED no single global figure found by this chapter's search; only station-specific ranges Publish a station-independent global diurnal constant with its CI.
NA00-10 NA-00 f_ideal = ≈ 7.49 Hz f_ideal ≈ 7.49 Hz ideal lossless cavity: c ÷ Earth circumference (≈3.00×10⁵ km/s ÷ 4.0075×10⁴ km) MODELED textbook derivation The ~0.34 Hz gap to 7.83 is the model's known error (finite ionospheric conductivity lowers propagation speed), not a mystery.
NA00-11 NA-00 B_SR = picotesla (pT) range T B_SR picotesla (pT) range T ELF background amplitudes OBSERVED-REPLICATED Balser & Wagner (1960), Nature 188:638–641 Calibrated ELF magnetometry returning nanotesla-scale SR amplitudes.
NA00-12 NA-00 SR → human physiology — no value carried SR → human physiology ambient (pT) field strengths NOT-MEASURED no pre-registered, independently replicated dose–response found by this chapter's search Pre-register and independently replicate a dose–response at ambient pT strengths.
NA00-13 NA-00 f_α = 8–13 (≈10 dominant) Hz f_α 8–13 (≈10 dominant) Hz human posterior cortex; relaxed wakefulness; eyes closed OBSERVED-REPLICATED Berger (1929), Über das Elektrenkephalogramm des Menschen; IFCN definition Record posterior EEG, eyes closed, relaxed, and find no 8–13 Hz rhythm.
NA00-14 NA-00 f_WBV = 4–8 vertical; 1–2 horizontal; 4–16 hand/arm Hz f_WBV 4–8 vertical; 1–2 horizontal; 4–16 hand/arm Hz human whole-body mechanical vibration sensitivity OBSERVED-REPLICATED ISO 2631-1:1997 Standard psychophysical protocol returning a flat frequency response.
NA00-15 NA-00 A4 = 440 ± 0.5 Hz A4 440 ± 0.5 Hz Western concert pitch, by convention, at ~20 °C OBSERVED-REPLICATED (as a standard, not a natural constant) ISO 16:1975, Acoustics — Standard tuning frequency It is a convention; only the claim that it is natural is falsifiable, and that claim is inadmissible.
NA00-16 NA-00 A4 = 432 "natural tuning" — no value carried A4 = 432 "natural tuning" INADMISSIBLE names no measurand distinguishing it from any other convention Name a measurable physical or biological quantity that differs between 440 and 432 Hz, and pre-register it.
NA00-17 NA-00 chakra frequency tables — no value carried chakra frequency tables INADMISSIBLE as physics no measurand defined May be recorded as an HONEST/cultural signal. Never as a TRUE/measured one.

NA-01 — Nature as the authority, and the discipline that keeps it honest

Source: encyclopedia/wing-NATURA/NA-01-nature-as-the-authority.md · 18 rows

row_id chapter claim symbol value units scope class source falsifier
NA01-01 NA-01 θ_φ = 137.5 degrees θ_φ 137.5 degrees divergence-angle attractor of repulsion-driven sequential primordia at low control parameter G; NOT a universal constant OBSERVED-REPLICATED Douady & Couder (1992), PRL 68:2098–2101 Build the repulsion/advection system at low G; if divergence stably settles away from ~137.5°, the mechanism is refuted.
NA01-02 NA-01 N_C4 = 62 independent lineages (count) N_C4 62 independent lineages (count) vascular plants, global, as of 2011; later revisions higher (value NOT extracted here) OBSERVED-REPLICATED Sage, Christin & Edwards (2011), J. Exp. Bot. 62:3155–3169 Phylogenetic re-analysis collapsing the count toward a single origin.
NA01-03 NA-01 N_crab = ≥5 independent origins (count) N_crab ≥5 independent origins (count) Decapoda (Brachyura + Anomura) OBSERVED-REPLICATED Wolfe et al. (2021), BioEssays 43:2100020, doi:10.1002/bies.202100020 Phylogeny showing crab body plan is ancestral + retained, not re-derived.
NA01-04 NA-01 f_eye-shared = 69.3 (729/1052) % of octopus-eye genes co-expressed in human eye f_eye-shared 69.3 (729/1052) % of octopus-eye genes co-expressed in human eye single EST study; 1019/1052 predate the bilaterian LCA OBSERVED-CONTESTED Ogura, Ikeo & Gojobori (2004), Genome Res. 14:1555–1561 RNA-seq replication showing eye-gene overlap at chance level for shared-ancestry genes.
NA01-05 NA-01 N_eyes = 40–65 independent origins (count) N_eyes 40–65 independent origins (count) organ/optical level only; the opsin+Pax6 toolkit is ancestral and shared OBSERVED-CONTESTED Salvini-Plawen & Mayr (1977), Evol. Biol. 10:207–263; contested by Nilsson (2013), Vis. Neurosci. 30:5–20 Demonstrate non-homologous opsin/photoreceptor origins (would raise it), or a single optical origin (would collapse it).
NA01-06 NA-01 — (Prestin) = parallel substitutions cluster echolocating bats with toothed whales, against the species tree (sequence sites) — (Prestin) parallel substitutions cluster echolocating bats with toothed whales, against the species tree (sequence sites) the gene Prestin (cochlear outer-hair-cell motor protein); bats + toothed whales OBSERVED-REPLICATED Li et al. (2010), Curr. Biol. 20(2):R55–R56; Liu et al. (2010), Curr. Biol. 20(2) Resequencing in which Prestin tracks the species tree, not the echolocation trait.
NA01-07 NA-01 — (genome-wide) = reported genome-wide convergence signal (locus count NOT extracted here) — (genome-wide) reported genome-wide convergence signal (locus count NOT extracted here) echolocating mammals, genome-wide OBSERVED-CONTESTED Parker et al. (2013), Nature 502:228–231 vs Zou & Zhang (2015), MBE 32:1237–1241; Thomas & Hahn (2015), MBE 32:1232–1236; PNAS (2019) doi:10.1073/pnas.1818532116 An agreed null model under which the signal either survives or vanishes — the dispute IS about the null.
NA01-08 NA-01 ΔD_riblet = 9.9 % drag reduction ΔD_riblet 9.9 % drag reduction lab, blade riblets w/ slits, adjustable geometry, turbulent BL, stiff body, at optimum s⁺; other studies report 6–8% — regime/geometry dependent OBSERVED-REPLICATED (as a 6–10% range) Bechert et al. (1997), J. Fluid Mech. 338:59–87 Optimized riblets at s⁺≈15 giving no drag reduction in a calibrated turbulent BL.
NA01-09 NA-01 s⁺ = ≈15–17 wall units (dimensionless, s·u_τ/ν) s⁺ ≈15–17 wall units (dimensionless, s·u_τ/ν) optimum riblet tip-to-tip spacing, turbulent boundary layer OBSERVED-REPLICATED Bechert et al. (1997) Drag-reduction optimum found at a spacing that does not scale with viscous length.
NA01-10 NA-01 h⁺/s⁺ = ≈0.5 dimensionless h⁺/s⁺ ≈0.5 dimensionless blade-riblet height/spacing at optimum (0.5–1.0 reported) OBSERVED-REPLICATED Bechert et al. (1997) Optimum at a materially different height ratio.
NA01-11 NA-01 Δv_skin = +12.3 % mean swimming-speed increase Δv_skin +12.3 % mean swimming-speed increase flexible real shark-skin membrane on flapping foil vs denticles sanded off; on RIGID plates the sign REVERSES OBSERVED-CONTESTED Oeffner & Lauder (2012), J. Exp. Biol. 215:785–795 Independent replication finding no speed gain from intact denticles on flexible foils.
NA01-12 NA-01 s_Speedo = ~1.25 mm (indentation spacing) s_Speedo ~1.25 mm (indentation spacing) Speedo® Fastskin FS II fabric — no consistent drag reduction; slower at 3 Hz OBSERVED-REPLICATED (as a NEGATIVE) Oeffner & Lauder (2012) A controlled test showing the fabric's surface functions as riblets.
NA01-13 NA-01 F_seta = ~200 (friction); 20–40 (adhesive normal) µN F_seta ~200 (friction); 20–40 (adhesive normal) µN single Tokay gecko seta OBSERVED-REPLICATED Autumn et al. (2000), Nature 405:681–685; (2002) PNAS 99:12252–12256 Single-seta measurement at a materially different force, or capillary (not vdW) mechanism.
NA01-14 NA-01 L_RLN = ≥28 (14 m neck); 40–50 speculated m (axon length) L_RLN ≥28 (14 m neck); 40–50 speculated m (axon length) sauropods; inferred from skeletal reconstruction — no tissue measured MODELED Wedel (2012), Acta Palaeontol. Pol. 57:251–256 A sauropod soft-tissue find showing a direct (non-recurrent) laryngeal route.
NA01-15 NA-01 L_RLN-giraffe = NOT-MEASURED m L_RLN-giraffe NOT-MEASURED m the giraffe detour is real and observed; the exact detour length was not sourced here NOT-MEASURED
NA01-16 NA-01 f_SR1 = ≈7.83 Hz f_SR1 ≈7.83 Hz fundamental Schumann mode, Earth–ionosphere cavity, global OBSERVED-REPLICATED Schumann (1952) prediction; experimental confirmation 1954 Calibrated ELF receiver, away from local sources, detecting no cavity resonance near 7.8 Hz.
NA01-17 NA-01 f_SR1 range = NOT-MEASURED Hz f_SR1 range NOT-MEASURED Hz diurnal/solar variation reported as ~7.5–8.1 Hz in secondary sources only; no primary-source range extracted — recorded empty rather than laundered NOT-MEASURED
NA01-18 NA-01 Shinkansen = NOT-MEASURED % Shinkansen NOT-MEASURED % '30% pressure / 10% faster / 15% electricity' — no primary engineering source located; recurs verbatim across secondary sources (citation cascade) NOT-MEASURED Impelluso (2011), AAAS Qualia; Nakatsu interview (JFS No. 6) Production of the primary JR-West engineering report with a parallel non-bio baseline.

NA-02 — The one loop: active inference as the method

Source: encyclopedia/wing-NATURA/NA-02-the-one-loop.md · 11 rows

row_id chapter claim symbol value units scope class source falsifier
NA02-01 NA-02 F = = D_KL[q(s)‖p(s|o)] − ln p(o) nats F = D_KL[q(s)‖p(s|o)] − ln p(o) nats any q,p with q absolutely continuous w.r.t. p on the support MODELED (identity; assumption = the stated support condition) Buckley et al. (2017) J Math Psych 81:55–79; Da Costa et al. (2020) J Math Psych 99:102447 Exhibit q,p,o with F < −ln p(o); requires D_KL < 0, contradicting Gibbs' inequality.
NA02-02 NA-02 F − (−ln p(o)) = >= 0; = 0 iff q(s) = p(s|o) nats F − (−ln p(o)) >= 0; = 0 iff q(s) = p(s|o) nats as above MODELED (Gibbs' inequality) Buckley et al. (2017) Exhibit q ≠ p(s|o) with zero gap.
NA02-03 NA-02 1 nat = log2(e) = 1.442695... bits per nat 1 nat log2(e) = 1.442695... bits per nat any log-base change MODELED (definitional) Shannon information convention Arithmetic.
NA02-04 NA-02 G(pi) = = risk + ambiguity = −epistemic − pragmatic nats G(pi) = risk + ambiguity = −epistemic − pragmatic nats discrete POMDP, convention q(o,s|pi) = p(o|s) q(s|pi) MODELED (assumption = that convention; the epistemic form further assumes q(s|o,pi) ≈ p(s|o)) Da Costa et al. (2020); Parr, Pezzulo & Friston (2022) Active Inference, MIT Press, DOI 10.7551/mitpress/12441.001.0001 Derive a case where the two decompositions diverge under the stated convention.
NA02-05 NA-02 gamma = free parameter; no universal value nats^-1 gamma free parameter; no universal value nats^-1 gamma > 0 NOT-MEASURED — (fit per model/subject; not a natural constant) Exhibit a replicated cross-species measurement of a single gamma.
NA02-06 NA-02 gamma -> 0 / gamma -> inf = uniform over pi / deterministic argmin G dimensionless limits gamma -> 0 / gamma -> inf uniform over pi / deterministic argmin G dimensionless limits softmax sigma(−gamma·G) MODELED Friston et al. (2017) Neural Computation 29(1):1–49, DOI 10.1162/NECO_a_00912 Evaluate the softmax at the limits.
NA02-07 NA-02 golden angle = 360/phi^2 = 137.50776405... degrees golden angle 360/phi^2 = 137.50776405... degrees exact mathematical constant, phi = (1+sqrt 5)/2 MODELED (exact) definitional Arithmetic.
NA02-08 NA-02 divergence angle, Douady–Couder cell = converges toward the golden angle as G_DC falls; Fibonacci parastichies appear degrees; G_DC = v0*T/r0 dimensionless divergence angle, Douady–Couder cell converges toward the golden angle as G_DC falls; Fibonacci parastichies appear degrees; G_DC = v0*T/r0 dimensionless ferrofluid droplets in silicone oil, vertical B-field with radial gradient; plus the matched numerical model OBSERVED-REPLICATED (physical experiment + simulation; extended in the authors' 1996 J. Theor. Biol. series) Douady & Couder (1992) Phys. Rev. Lett. 68(13):2098–2101, DOI 10.1103/PhysRevLett.68.2098 Run the cell at small G_DC and observe a stable divergence angle away from the golden angle, or non-Fibonacci parastichy pairs.
NA02-09 NA-02 fraction of parameter space where the FEP's blanket + solenoidal conditions hold = reported as "very narrow"; no scalar fraction extracted here dimensionless fraction fraction of parameter space where the FEP's blanket + solenoidal conditions hold reported as "very narrow"; no scalar fraction extracted here dimensionless fraction weakly-coupled non-equilibrium linear stochastic systems NOT-MEASURED as a scalar; the scope restriction itself is OBSERVED-CONTESTED Aguilera et al. (2022) Phys. Life Rev. 40:24–50 Publish a measure-theoretic fraction over a stated parameter prior.
NA02-10 NA-02 biological systems observed to explicitly compute G(pi) — no value carried biological systems observed to explicitly compute G(pi) count any taxon NOT-MEASURED Exhibit a pre-registered neural recording decoding a per-policy G in nats.
NA02-11 NA-02 divergence-angle distribution across real plant taxa — no value carried divergence-angle distribution across real plant taxa degrees seed plants NOT-MEASURED in this chapter (not a claim it is unmeasured in the literature — this chapter did not source it) Cite a taxon-level measured distribution with n and dispersion.

NA-03 — How to research, observe, and make new science with falsifiable evidence

Source: encyclopedia/wing-NATURA/NA-03-how-to-make-new-science.md · 16 rows

row_id chapter claim symbol value units scope class source falsifier
NA03-01 NA-03 FPR₄ = 60.7 % (at p<.05) FPR₄ 60.7 % (at p<.05) 15,000 simulated samples; 2-condition design, 20 obs/cell, 4 combined researcher DFs. Individually: 9.5 / 7.7 / 11.7 / 12.6 % MODELED Simmons, Nelson & Simonsohn (2011), Psych. Sci. 22(11):1359–1366, Table 1 Re-run the published simulation under the stated assumptions and obtain a materially different rate.
NA03-02 NA-03 r_rep = 36 (vs 97 originals) % significant at p<.05 r_rep 36 (vs 97 originals) % significant at p<.05 100 studies, 3 psychology journals, 2008 volumes; does NOT generalize to other fields un-remeasured OBSERVED-CONTESTED Open Science Collaboration (2015), Science 349:aac4716 Contested by Gilbert et al. (2016), Science 351:1037 (low power + protocol infidelity bias the estimate low); OSC replied same issue. Both carried.
NA03-03 NA-03 RR⁺ = 96 vs 44 % positive results (standard lit. vs Registered Reports) RR⁺ 96 vs 44 % positive results (standard lit. vs Registered Reports) Sample of standard psychology literature vs published RRs OBSERVED-CONTESTED Scheel, Schijen & Lakens (2021), AMPPS, doi:10.1177/25152459211007467 Descriptive gap undisputed; causal attribution to preregistration disputed — RRs differ in topic/design too.
NA03-04 NA-03 power_med = 21 % (median statistical power) power_med 21 % (median statistical power) 49 meta-analyses, 730 studies, 2011 neuroscience literature OBSERVED-CONTESTED Button et al. (2013), Nat. Rev. Neurosci. 14:365–376, doi:10.1038/nrn3475 Nord et al. (2017), J. Neurosci. 37(34):8051–8061 refit with mixture modelling: substantial subfield heterogeneity, not one field-wide median.
NA03-05 NA-03 bias_conceal = 41 / 30 / 17 % OR exaggeration (inadequate / unclear concealment / not double-blind) bias_conceal 41 / 30 / 17 % OR exaggeration (inadequate / unclear concealment / not double-blind) 250 trials, 33 meta-analyses, Cochrane Pregnancy & Childbirth Database OBSERVED-REPLICATED Schulz et al. (1995), JAMA 273(5):408–412, doi:10.1001/jama.273.5.408 Replicated + scoped by Wood et al. (2008) BMJ (1,346 trials) and Savović et al. (2012) Ann. Intern. Med. 157(6):429–438 (1,973 trials): ROR 0.69 [0.59–0.82] concealment / 0.75 [0.61–0.93] blinding for SUBJECTIVE outcomes; 0.91 [0.80–1.03] / 1.01 [0.92–1.10] for objective.
NA03-06 NA-03 Δ_MM = expected 0.40; observed max 0.02, mean <0.01 fringes Δ_MM expected 0.40; observed max 0.02, mean <0.01 fringes Michelson interferometer, Cleveland 1887; bounds ether drift < ~1/6 × 30 km/s ≈ <5 km/s OBSERVED-REPLICATED Michelson & Morley (1887), Am. J. Sci. (3rd ser.) 34:333–345 Any reproducible fringe displacement at the predicted 0.40 magnitude.
NA03-07 NA-03 δ_GR / δ_N = 1.75 / 0.87 arcsec (deflection at solar limb) δ_GR / δ_N 1.75 / 0.87 arcsec (deflection at solar limb) Predictions, not measurements: GR vs Newtonian half-deflection MODELED Dyson, Eddington & Davidson (1920), Phil. Trans. R. Soc. A 220:291–333, doi:10.1098/rsta.1920.0009 A measurement excluding both values.
NA03-08 NA-03 δ_1919 = Sobral 1.98 ± 0.12; Príncipe 1.61 ± 0.31 arcsec δ_1919 Sobral 1.98 ± 0.12; Príncipe 1.61 ± 0.31 arcsec 1919 eclipse, 2 sites. Excludes Newtonian (~9.3σ / ~2.4σ — the chapter's arithmetic on the published values); does NOT pin GR (Sobral ~1.9σ above 1.75) OBSERVED-CONTESTED ibid.; commentary PMC4360090 The Sobral 16-inch plate set was EXCLUDED as 'diffused and apparently out of focus' — a disclosed exclusion travels with this result permanently.
NA03-09 NA-03 Δt_OPERA = 60.7 ± 6.9 (stat) ± 7.4 (sys) → 6.5 ± 15 ns (neutrino early-arrival, 730 km baseline) Δt_OPERA 60.7 ± 6.9 (stat) ± 7.4 (sys) → 6.5 ± 15 ns (neutrino early-arrival, 730 km baseline) (v−c)/c ≈ 2.48 × 10⁻⁵ initially; refuted 2012 INADMISSIBLE OPERA Collab. (2011), arXiv:1109.4897; 2012 re-measurement FAILED: loose GPS fibre connector (~73.2 ns) + master-clock oscillator off 0.124 ppm. Re-measured 6.5 ± 15 ns = consistent with zero. Receipt carried, claim withdrawn.
NA03-10 NA-03 Δϖ_Mercury = ~43 arcsec/century (unexplained perihelion precession) Δϖ_Mercury ~43 arcsec/century (unexplained perihelion precession) Residual after Newtonian planetary perturbations; Le Verrier 1859 (38″), Newcomb 1882 (43″) OBSERVED-REPLICATED Le Verrier (1859); Newcomb (1882); Einstein (1915/1916) A Newtonian account (undiscovered mass, oblateness) reproducing the residual without new gravity.
NA03-11 NA-03 T_ant = ≈3.5 K (excess antenna temperature at 4080 Mc/s) T_ant ≈3.5 K (excess antenna temperature at 4080 Mc/s) Holmdel horn antenna, 1964–65; survived removal of every known instrumental/atmospheric term, incl. the pigeons OBSERVED-REPLICATED Penzias & Wilson (1965), ApJ 142:419–421 An instrumental or local source reproducing the excess.
NA03-12 NA-03 T_CMB = 2.72548 ± 0.00057 K T_CMB 2.72548 ± 0.00057 K Present-day CMB monopole temperature OBSERVED-REPLICATED Fixsen (2009), ApJ 707:916 A measurement outside the stated interval by a calibrated instrument.
NA03-13 NA-03 α_golden = ≈137.5 degrees (divergence angle) α_golden ≈137.5 degrees (divergence angle) Phyllotactic order; reproduced in a ferrofluid-droplet physical experiment AND numerical simulation from repulsion + growth rate OBSERVED-REPLICATED Douady & Couder (1992), Phys. Rev. Lett. 68:2098–2101 A repulsion-dynamics system at the stated growth parameter failing to converge on the golden mean.
NA03-14 NA-03 NOT-MEASURED NOT-MEASURED The rate at which strong inference (§2) actually accelerates a field vs conventional practice. Platt asserts it ('perhaps by an order of magnitude'); no controlled measurement is cited here NOT-MEASURED An empirical study measuring discovery rate against method adherence would fill this row.
NA03-15 NA-03 NOT-MEASURED NOT-MEASURED The false-positive rate of the ACTUAL published literature (as opposed to Simmons' simulation or Ioannidis' model) NOT-MEASURED A field-wide audit with a ground-truth set would fill this row.
NA03-16 NA-03 SI defining constants = Δν_Cs = 9 192 631 770 Hz; c = 299 792 458 m/s; h = 6.626 070 15 × 10⁻³⁴ J·s; e = 1.602 176 634 × 10⁻¹⁹ C; k = 1.380 649 × 10⁻²³ J/K; N_A = 6.022 140 76 × 10²³ mol⁻¹ Hz, m/s, J·s, C, J/K, mol⁻¹ SI defining constants Δν_Cs = 9 192 631 770 Hz; c = 299 792 458 m/s; h = 6.626 070 15 × 10⁻³⁴ J·s; e = 1.602 176 634 × 10⁻¹⁹ C; k = 1.380 649 × 10⁻²³ J/K; N_A = 6.022 140 76 × 10²³ mol⁻¹ Hz, m/s, J·s, C, J/K, mol⁻¹ exact by convention, effective 20 May 2019 (NO evidence class — chapter states: 'Definitional values, deliberately carrying NO evidence class … They are not observations of nature and this wing's evidence classes do not apply to them.') BIPM, SI Brochure, 9th ed., 2019 Not falsifiable — conventions, not observations. The chapter's instruction is: know which of your numbers are conventions.

NA-04 — MIND / BODY / MIND.BODY / WORLD — the Markov blanket, nested across scales

Source: encyclopedia/wing-NATURA/NA-04-mind-body-world.md · 14 rows

row_id chapter claim symbol value units scope class source falsifier
NA04-01 NA-04 μ ⊥ η | b = p(μ,η|b) = p(μ|b)p(η|b) — (definition) μ ⊥ η | b p(μ,η|b) = p(μ|b)p(η|b) — (definition) any system admitting the 4-way partition MODELED (definitional; assumption = the partition is given, not discovered) Pearl (1988), Probabilistic Reasoning in Intelligent Systems Not falsifiable as a definition. The application to system X is falsified by I(μ;η|b) > 0 in X.
NA04-02 NA-04 I(μ;η|b) = 0 (required) nats I(μ;η|b) 0 (required) nats the operable blanket test, any system NOT-MEASURED for essentially all real biological systems criterion: Pearl (1988); attempts: Friston et al. (2021) Netw Neurosci 5(1):211–251; Beck & Ramstead (2025) arXiv:2502.21217 Estimate it for a named organism's real boundary. Any I > 0 beyond estimator noise refutes that blanket.
NA04-03 NA-04 H_μη, H_ημ = 0 (required) precision units H_μη, H_ημ 0 (required) precision units linear Gaussian / Ornstein–Uhlenbeck systems MODELED — holds only in a 'very narrow space of parameters' (assumptions: linearity, weak coupling C² small, homogeneous noise Γ = ς²I) Aguilera, Millidge, Tschantz & Buckley (2022), Physics of Life Reviews, arXiv:2105.11203 Exhibit a broad, non-symmetric parameter region of a non-equilibrium system where the blocks vanish.
NA04-04 NA-04 N_rod = 92 × 10⁶ (range 77.9–107.3 × 10⁶) cells N_rod 92 × 10⁶ (range 77.9–107.3 × 10⁶) cells human retina; 8 wholemounts, 7 donors, ages 27–44 OBSERVED-REPLICATED Curcio, Sloan, Kalina & Hendrickson (1990), J Comp Neurol 292:497–523, DOI 10.1002/cne.902920402 Recount in a comparable cohort; a mean outside the stated range refutes.
NA04-05 NA-04 N_cone = 4.6 × 10⁶ (range 4.08–5.29 × 10⁶) cells N_cone 4.6 × 10⁶ (range 4.08–5.29 × 10⁶) cells as above OBSERVED-REPLICATED Curcio et al. (1990) As above.
NA04-06 NA-04 D_cone,fovea = 199,000 (range 100,000–324,000) cones/mm² D_cone,fovea 199,000 (range 100,000–324,000) cones/mm² human foveal peak; same cohort OBSERVED-REPLICATED Curcio et al. (1990) As above.
NA04-07 NA-04 N_optic = 1,159,000 ± 196,000 (range 816,000–1,502,000) axons N_optic 1,159,000 ± 196,000 (range 816,000–1,502,000) axons human optic nerve; 22 nerves, 19 subjects, ages 20–75 OBSERVED-REPLICATED Jonas, Müller-Bergh, Schlötzer-Schrehardt & Naumann (1990), Invest Ophthalmol Vis Sci 31(4):736–744 Recount; a mean outside the stated range refutes.
NA04-08 NA-04 r_retina = ≈ 83 : 1 dimensionless r_retina ≈ 83 : 1 dimensionless human visual blanket, order-of-magnitude only MODELED — assumptions: (N_rod + N_cone)/N_optic across different cohorts, unpaired, no per-eye matching, ignores non-uniform convergence (foveal ≈ 1:1 vs peripheral ≫ 100:1) arithmetic on Curcio et al. (1990) + Jonas et al. (1990) Measure both counts in the same eyes. A paired ratio outside ~50–150:1 refutes this estimate.
NA04-09 NA-04 f_aff (rat) = ~80% afferent / 20% efferent % of fibers f_aff (rat) ~80% afferent / 20% efferent % of fibers rat, abdominal vagus OBSERVED-CONTESTED — the widely-quoted '80% of the vagus is afferent', routinely cited outside this scope Prechtl & Powley (1990), Anat Embryol 181:101–115, DOI 10.1007/BF00198950 Measure the human cervical vagus and obtain 80% ± small. Kronsteiner et al. (2024) did, and did not.
NA04-10 NA-04 f_aff (human) = sensory 73.9 ± 7.5% (R), 72.4 ± 5.6% (L); parasympathetic 13.2 ± 1.8% / 13.3 ± 3.0%; sympathetic 13 ± 5.9% / 14.3 ± 4.0% % of fibers f_aff (human) sensory 73.9 ± 7.5% (R), 72.4 ± 5.6% (L); parasympathetic 13.2 ± 1.8% / 13.3 ± 3.0%; sympathetic 13 ± 5.9% / 14.3 ± 4.0% % of fibers human, cervical vagus; 8 cadavers, immunofluorescence OBSERVED-CONTESTED — carry with the row above; both positions stand Kronsteiner et al. (2024), Brain Stimulation 17(3):510–524, DOI 10.1016/j.brs.2024.04.016 Independent replication in a larger cohort; a sensory fraction outside ~65–82% refutes.
NA04-11 NA-04 N_vagus = ~100,000 (light microscopy, 1961) vs 25,489 ± 2,781 (R) / 23,286 ± 3,164 (L) (modern, 2024) axons N_vagus ~100,000 (light microscopy, 1961) vs 25,489 ± 2,781 (R) / 23,286 ± 3,164 (L) (modern, 2024) axons human cervical vagus OBSERVED-CONTESTED — a ~4× disagreement between methods. The dispute is the finding; the modern claim is that light microscopy cannot resolve unmyelinated fibers Hoffman & Schnitzlein (1961), Anat Rec 139(3), DOI 10.1002/ar.1091390312; Kronsteiner et al. (2024) Blinded EM recount across labs on shared specimens. Convergence on either value resolves it.
NA04-12 NA-04 α_golden = ≈ 137.5 degrees α_golden ≈ 137.5 degrees phyllotactic divergence; reproduced in a ferrofluid-droplet physical analogue OBSERVED-REPLICATED (mechanism earned, not mystical) Douady & Couder (1992), Phys Rev Lett 68(13):2098–2101, DOI 10.1103/PhysRevLett.68.2098 Run the same repulsion/advection regime and obtain a stably different angle with no parameter change.
NA04-13 NA-04 n_levels — no value carried n_levels nested blankets any named organism, established by measurement NOT-MEASURED none found Estimate I(μ;η|b) at each candidate level of one real organism and count the levels that pass.
NA04-14 NA-04 descending motor signal = proprioceptive prediction, not command descending motor signal proprioceptive prediction, not command vertebrate motor system HYPOTHESIZED (mechanism proposed, not settled) Adams, Shipp & Friston (2013), Brain Struct Funct 218:611–643, DOI 10.1007/s00429-012-0475-5 Show descending signals encode forces/commands with no proprioceptive-prediction structure, or reflex arcs that do not discharge predicted state.

NA-05 — The ratios: allometry and scaling laws across 20+ orders of magnitude

Source: encyclopedia/wing-NATURA/NA-05-ratios-and-scaling-laws.md · 47 rows

row_id chapter claim symbol value units scope class source falsifier
NA05-01 NA-05 b_Kleiber = 3/4 (measured slope reported 0.74) dimensionless b_Kleiber 3/4 (measured slope reported 0.74) dimensionless BMR vs mass, 13 data points OBSERVED-CONTESTED Kleiber 1932, Hilgardia 6:315–353; n=13 per Kolokotrones et al. 2010, Nature 464:753–756 See every row below; the dispute IS the falsification record.
NA05-02 NA-05 b_Rubner = 2/3 dimensionless b_Rubner 2/3 dimensionless surface-law argument; respiration trials on dogs OBSERVED-CONTESTED Rubner 1883 Data rejecting 2/3 at a stated mass range.
NA05-03 NA-05 b_Savage,binned = 0.737 dimensionless b_Savage,binned 0.737 dimensionless mammal BMR, 0.1 log-unit bins OBSERVED-CONTESTED Savage et al. 2004, Funct Ecol 18:257–282 (95% CI 0.711–0.762, n=52) Re-fit with different binning.
NA05-04 NA-05 b_Savage,unbinned = 0.712 dimensionless b_Savage,unbinned 0.712 dimensionless mammal BMR, all species — CI excludes 2/3 and 3/4 OBSERVED-CONTESTED Savage et al. 2004 (95% CI 0.699–0.724, n=626) Re-fit; show binning is not what moves the verdict.
NA05-05 NA-05 b_White&Seymour = 0.68 (interspecific); 0.65 (interordinal) — both ≠ 3/4, both = 2/3 within error dimensionless b_White&Seymour 0.68 (interspecific); 0.65 (interordinal) — both ≠ 3/4, both = 2/3 within error dimensionless 619 spp. → 469 after excluding Artiodactyla, Lagomorpha, Soricidae, Macropodidae; T_b-corrected to 36.2 °C, Q₁₀=3.0 OBSERVED-CONTESTED White & Seymour 2003, PNAS 100(7):4046–9 (CIs not read in this pass) A dataset with equivalent basal-condition rigour giving 3/4.
NA05-06 NA-05 b_WS,BMR / SMR / RMRt = 0.686±0.014 / 0.675±0.013 / 0.712±0.013 dimensionless b_WS,BMR / SMR / RMRt 0.686±0.014 / 0.675±0.013 / 0.712±0.013 dimensionless exponent depends on which rate is measured; the BMR/SMR figures are White & Seymour's own 2003 fits restated in their 2005 review — same authors, same dataset, same regression, so not a replication OBSERVED-CONTESTED (re-classed: the identical underlying result is OBSERVED-CONTESTED two rows up; one result cannot hold two classes) White & Seymour 2003, as tabulated in White & Seymour 2005, J Exp Biol 208:1611 Show the three definitions give one exponent.
NA05-07 NA-05 b₂ (curvature) = 0.0322 ± 0.0053 (P = 9.0×10⁻¹⁰); 0.0294 ± 0.0057 with T dimensionless b₂ (curvature) 0.0322 ± 0.0053 (P = 9.0×10⁻¹⁰); 0.0294 ± 0.0057 with T dimensionless McNab dataset, n=636 (447 with T); unit-scale invariant OBSERVED-CONTESTED Kolokotrones et al. 2010, Nature 464:753–756, Table 1 MacKay 2011 — see contested row; reply: Deeds, Savage & Fontana 2011.
NA05-08 NA-05 b₁ = 0.5400 ± 0.0295 (0.5371 ± 0.0305 with T) dimensionless b₁ 0.5400 ± 0.0295 (0.5371 ± 0.0305 with T) dimensionless artifact of M₀ = 1 g; not interpretable alone INADMISSIBLE as 'the exponent' Kolokotrones et al. 2010; objection: MacKay 2011, J Theor Biol 280(1):194–6; reply: Deeds, Savage & Fontana 2011, 280:197–8 — concedes the artifact, calls it irrelevant to curvature; the class stands either way Derive: under M'=kM, b₁' = b₁ − 2b₂log k.
NA05-09 NA-05 local slope = 0.57 → 0.87 (rises with mass) dimensionless local slope 0.57 → 0.87 (rises with mass) dimensionless ~3.6 g to ~460 kg; = b₁ + 2b₂log₁₀M MODELED Computed in-chapter from Kolokotrones Table 1; matches their stated range Arithmetic error.
NA05-10 NA-05 M(slope=2/3) = ~160 g (temp fit); ~93 g (no-temp fit) g M(slope=2/3) ~160 g (temp fit); ~93 g (no-temp fit) g mass where local slope = 2/3 MODELED Computed in-chapter Arithmetic error.
NA05-11 NA-05 M(slope=3/4) = ~4.2 kg (temp fit); ~1.8 kg (no-temp fit) kg M(slope=3/4) ~4.2 kg (temp fit); ~1.8 kg (no-temp fit) kg mass where local slope = 3/4 MODELED Computed in-chapter Arithmetic error.
NA05-12 NA-05 M(slope=1) = ~7.4 × 10⁷ g ≈ 74 t g M(slope=1) ~7.4 × 10⁷ g ≈ 74 t g proposed upper bound on animal size — EXTRAPOLATION: ~2.2 decades beyond the fitted data, which end at ~460 kg (local slope 0.87). Kolokotrones et al.'s own two hedges: the unbounded slope rise 'may be due to the paucity of data for large animals', and the size-limit reading holds only 'If this is correct' MODELED (extrapolated — rule 1 applies to this row) Computed in-chapter; Kolokotrones et al. state ~10⁸ g (100 t) A larger animal; or the slope not reaching 1.
NA05-13 NA-05 ΔR² from curvature = 0.958 → 0.961; 7% of unexplained variance per Kolokotrones, ~one-tenth per MacKay ΔR² from curvature 0.958 → 0.961; 7% of unexplained variance per Kolokotrones, ~one-tenth per MacKay small purchase — always carry this next to the P value OBSERVED-REPLICATED Kolokotrones et al. 2010 (95.8→96.1%, 7%); MacKay 2011 (~1/10) Recompute; the two sources state the same ΔR² and differ on the fraction.
NA05-14 NA-05 k_marsupial = 0.75 ± 0.01, R² = 0.990 dimensionless k_marsupial 0.75 ± 0.01, R² = 0.990 dimensionless 70 marsupials (McNab 2008), excluding Tarsipes rostratus + Lasiorhinus latifrons OBSERVED-CONTESTED MacKay 2011 Re-fit with the 2 species retained.
NA05-15 NA-05 curvature within Orders = significant only in Rodentia (p=0.02, 0.02 of variance) — but pooled across all eutheria the quadratic term 'remains significant' under the same test, MacKay's own words curvature within Orders significant only in Rodentia (p=0.02, 0.02 of variance) — but pooled across all eutheria the quadratic term 'remains significant' under the same test, MacKay's own words residual-based test; the near-vanishing is a within-Order result only OBSERVED-CONTESTED MacKay 2011 Independent within-Order test.
NA05-16 NA-05 reply to MacKay = b₁ artifact conceded, argued irrelevant (only b₂ assesses curvature); MacKay's two-step residual test called 'sub-optimal by construction'; curvature reported to survive T_b, phylogeny, food source and habitat reply to MacKay b₁ artifact conceded, argued irrelevant (only b₂ assesses curvature); MacKay's two-step residual test called 'sub-optimal by construction'; curvature reported to survive T_b, phylogeny, food source and habitat rebuttal by 3 of Kolokotrones et al.'s 4 authors — not independent; silent on Hayssen & Lacy (1985) and on the 70-marsupial fit OBSERVED-CONTESTED Deeds, Savage & Fontana 2011, J Theor Biol 280:197–198, doi:10.1016/j.jtbi.2011.03.036 Answer the two receipts it leaves standing; or an independent party adjudicating the residual-test dispute.
NA05-17 NA-05 WBE assumptions = space-filling fractal network; size-invariant terminal unit; energy minimisation WBE assumptions space-filling fractal network; size-invariant terminal unit; energy minimisation derivation of 3/4 MODELED West, Brown & Enquist 1997, Science 276:122–126 The assumptions are the fence — see rows below.
NA05-18 NA-05 WBE finite-size form = M = c₀B + c₁B^(4/3), both c > 0 → concave; data are convex WBE finite-size form M = c₀B + c₁B^(4/3), both c > 0 → concave; data are convex wrong sign of curvature MODELED (refuted on this point) Kolokotrones et al. 2010 Show c₁ < 0 follows from WBE's own minimisation.
NA05-19 NA-05 b_heart = −1/4 dimensionless b_heart −1/4 dimensionless resting mammals; L&H state no n and no mass range for the resting-HR claim — their 34-species / 7 g–500 kg series is maximal heart rate (−0.15) and VO₂max, not this row OBSERVED-REPLICATED Lindstedt & Hoppeler 2023, J Exp Biol 226(24):jeb245766 — 'resting heart rate scales as M–1/4' Modern re-fit with CI outside −0.30 to −0.20.
NA05-20 NA-05 f prefactor (heart rate) = NOT-MEASURED in this pass. 241 (bpm, M in kg) is widely quoted but appears nowhere in Lindstedt & Hoppeler 2023, and the Calder/Stahl primary was not read bpm f prefactor (heart rate) NOT-MEASURED in this pass. 241 (bpm, M in kg) is widely quoted but appears nowhere in Lindstedt & Hoppeler 2023, and the Calder/Stahl primary was not read bpm NOT-MEASURED none read; attributed to Calder's cardiac allometry — the citation does not carry the value Read Calder 1984, Size, Function and Life History, or Stahl 1967; print the coefficient it gives.
NA05-21 NA-05 b_lifespan,mammal = 0.153 (t_max = 4.88·M^0.153 yr, M in g), R²=0.66 dimensionless b_lifespan,mammal 0.153 (t_max = 4.88·M^0.153 yr, M in g), R²=0.66 dimensionless 856 mammals, cetaceans excluded — not 1/4 OBSERVED-REPLICATED de Magalhães, Costa & Church 2007, J Gerontol A 62(2) Re-fit giving CI containing 0.25.
NA05-22 NA-05 b_lifespan,bird = 0.218 (t_max = 5.22·M^0.218 yr), R²=0.70 dimensionless b_lifespan,bird 0.218 (t_max = 5.22·M^0.218 yr), R²=0.70 dimensionless 518 birds OBSERVED-REPLICATED de Magalhães et al. 2007 ('body mass explained 70% of the variation in tmax') As above.
NA05-23 NA-05 b_VO₂max = 0.872 dimensionless b_VO₂max 0.872 dimensionless 34 eutherian species, 7 g – 500 kg — vs basal ~0.70 OBSERVED-REPLICATED Lindstedt & Hoppeler 2023 Show basal and max share an exponent.
NA05-24 NA-05 beats/lifetime = 7.3 ± 5.6 × 10⁸ — ± convention not stated in the source; read here as SD → 77% of mean beats beats/lifetime 7.3 ± 5.6 × 10⁸ — ± convention not stated in the source; read here as SD → 77% of mean beats mammals OBSERVED-CONTESTED Levine 1997, J Am Coll Cardiol 30:1104–6 An 'invariant' needs a CV that does not span an order of magnitude. If the ± is a SEM the species spread is wider still and this row strengthens.
NA05-25 NA-05 beats/lifetime, human = ~2.9 × 10⁹ (70 bpm × 80 yr); Levine quotes ~3 × 10⁹ beats beats/lifetime, human ~2.9 × 10⁹ (70 bpm × 80 yr); Levine quotes ~3 × 10⁹ beats the conspicuous exception, ~4× the mammal mean MODELED (computed in-chapter) + OBSERVED Computed in-chapter; Levine 1997 states humans are the exception Arithmetic; or a mammal line that humans fall on.
NA05-26 NA-05 beats/lifetime, other = tortoise 5.6×10⁸; haddock 3.5×10⁷; brown trout 6.7×10⁷; Daphnia 1.3×10⁷ beats beats/lifetime, other tortoise 5.6×10⁸; haddock 3.5×10⁷; brown trout 6.7×10⁷; Daphnia 1.3×10⁷ beats fish are an order of magnitude below mammals OBSERVED-REPLICATED (as reported by Levine 1997) Levine 1997 Independent measurement.
NA05-27 NA-05 beats/lifetime scaling = ∝ M^(−0.097) → ~4.8× decline over 7 decades of mass dimensionless beats/lifetime scaling ∝ M^(−0.097) → ~4.8× decline over 7 decades of mass dimensionless composition of −0.25 and +0.153 MODELED (computed in-chapter) Computed from Lindstedt & Hoppeler 2023 + de Magalhães et al. 2007 Measure beats/lifetime vs mass directly in one dataset — this composition mixes sources (M22).
NA05-28 NA-05 D_O₂,water = 2.0 × 10⁻⁹ (= 2000 µm²/s) m²/s D_O₂,water 2.0 × 10⁻⁹ (= 2000 µm²/s) m²/s room temperature — but fed into a 37 °C calculation in R_max below; the mismatch is stated there, not hidden OBSERVED-REPLICATED BNID 114984; St-Denis & Fell 1971, Can J Chem Eng 49:885 Independent measurement >2× off.
NA05-29 NA-05 C₀ (dissolved arterial O₂) = 0.134 (0.3 mL O₂/100 mL at PaO₂ 100 mmHg) mol/m³ C₀ (dissolved arterial O₂) 0.134 (0.3 mL O₂/100 mL at PaO₂ 100 mmHg) mol/m³ Henry's law, 0.003 mL·O₂/100 mL/mmHg OBSERVED-REPLICATED (standard physiology; primary not read in this pass) standard respiratory physiology Measurement outside 0.10–0.16.
NA05-30 NA-05 C_sat,water,37 °C = 207.3 (0.207 mol/m³) µM C_sat,water,37 °C 207.3 (0.207 mol/m³) µM air-saturated pure water, 100 kPa OBSERVED-REPLICATED (secondary: Bioblast) Bioblast, Oxygen solubility Primary thermodynamic table disagreeing >10%.
NA05-31 NA-05 a (resting O₂ use) = 2.66 × 10⁻³ mol m⁻³ s⁻¹ a (resting O₂ use) 2.66 × 10⁻³ mol m⁻³ s⁻¹ 250 mL O₂/min, 70 kg, ρ = 1000 kg/m³ MODELED (computed in-chapter) Computed; VO₂ rest is a standard reference value, not primary-sourced in this pass Refute the 250 mL/min input.
NA05-32 NA-05 R_max = ~0.78 at room-temperature D; ~0.95 at 37 °C mm R_max ~0.78 at room-temperature D; ~0.95 at 37 °C mm sphere, √(6DC₀/a), human resting metabolism — D is room-temperature, the calculation is 37 °C; a 37 °C D is NOT-SOURCED in this pass MODELED (computed in-chapter) Computed from the three rows above Exhibit tissue >1.5 mm thick living on dissolved-O₂ diffusion at this a. The condition error widens the bound — it does not rescue the conclusion.
NA05-33 NA-05 Krogh radius (observed) = 50–100 (intercapillary 100–200) µm Krogh radius (observed) 50–100 (intercapillary 100–200) µm human skeletal muscle OBSERVED-REPLICATED (secondary sources in this pass) Krogh-model literature Direct measurement outside range.
NA05-34 NA-05 muscle:rest specific rate = predicted ~100× at room-temperature D (~160× at 37 °C); physiological estimate ~40–75× dimensionless muscle:rest specific rate predicted ~100× at room-temperature D (~160× at 37 °C); physiological estimate ~40–75× dimensionless reconciles R_max with the Krogh radius — agreement only to ~2×, degrading to ~2–4× once D is put at body temperature MODELED (computed in-chapter) Computed; sphere-vs-cylinder geometry mismatch is the residual Measure working-muscle specific VO₂ directly.
NA05-35 NA-05 σ ∝ L = stress grows linearly with size at constant shape σ ∝ L stress grows linearly with size at constant shape F/A ∝ L³/L² OBSERVED-REPLICATED (geometry) Galileo 1638, Two New Sciences Geometric error.
NA05-36 NA-05 elastic similarity = L ∝ D^(2/3); → D ∝ M^(3/8), L ∝ M^(1/4), S ∝ M^(5/8) dimensionless elastic similarity L ∝ D^(2/3); → D ∝ M^(3/8), L ∝ M^(1/4), S ∝ M^(5/8) dimensionless McMahon's model MODELED McMahon 1973, Science 179:1201–4; cascade computed in-chapter (reproduces his M^(5/8)) See next row — largely refuted empirically.
NA05-37 NA-05 bone scaling (measured) = length ∝ M^0.31; diameter ∝ M^0.35 dimensionless bone scaling (measured) length ∝ M^0.31; diameter ∝ M^0.35 dimensionless 32 mammal spp. (secondary sources say 37 — unresolved here), 0.020–3500 kg — close to geometric similarity, not elastic (0.25 / 0.375) OBSERVED-REPLICATED (primary not read in this pass; exponents and n via secondary sources) Alexander et al. 1979, J Zool 189:305–314 Read the primary; a species count or exponent outside the stated values moves this row. The NEGATIVE verdict rests on the direction (geometric, not elastic), which is corroborated independently, and survives either count.
NA05-38 NA-05 b_colony,metabolic = 0.81, 95% CI 0.55–1.08 dimensionless b_colony,metabolic 0.81, 95% CI 0.55–1.08 dimensionless 12 colonies + 391 unitary insects; CI excludes nothing OBSERVED-CONTESTED Hou et al. 2010, PNAS 107(8):3634–8 More colonies; a CI that excludes an alternative.
NA05-39 NA-05 b_colony,production = 0.74, 95% CI 0.71–0.76 (r²=0.99, combined) dimensionless b_colony,production 0.74, 95% CI 0.71–0.76 (r²=0.99, combined) dimensionless colonies + unitary organisms — the tight row OBSERVED-REPLICATED Hou et al. 2010 Independent re-fit.
NA05-40 NA-05 b_city,superlinear = cluster 1.07–1.34, not a single value dimensionless b_city,superlinear cluster 1.07–1.34, not a single value dimensionless patents 1.27 [1.25–1.29]; R&D empl. 1.34 [1.29–1.39]; GDP 1.15 [1.06–1.23]; wages 1.12 [1.09–1.13]; AIDS 1.23 [1.18–1.29] OBSERVED-CONTESTED Bettencourt et al. 2007, PNAS 104(17):7301–6, Table 1 Leitão et al. 2016 — see next row.
NA05-41 NA-05 b_city,sublinear = gasoline stations 0.77 [0.74–0.81]; road surface 0.83 [0.74–0.92] (n=29); cables 0.87 [0.82–0.92] dimensionless b_city,sublinear gasoline stations 0.77 [0.74–0.81]; road surface 0.83 [0.74–0.92] (n=29); cables 0.87 [0.82–0.92] dimensionless Germany/USA 2001–02 OBSERVED-CONTESTED Bettencourt et al. 2007 As above.
NA05-42 NA-05 urban β ≠ 1 = model-dependent urban β ≠ 1 model-dependent 5 models × 15 datasets; depends on fluctuations, their model, and heavy-tailed city sizes OBSERVED-CONTESTED Leitão et al. 2016, R Soc Open Sci 3:150649 (arXiv:1604.02872) A fluctuation model class under which the verdict is stable.
NA05-43 NA-05 θ_golden = ~137.5 degrees θ_golden ~137.5 degrees phyllotaxis divergence angle; physically reproduced OBSERVED-REPLICATED Douady & Couder 1992, Phys Rev Lett 68:2098–2101 Repulsion-dynamics experiment failing to converge to the golden mean.
NA05-44 NA-05 Bergmann conformity = 65–71% (mammals); 72–76% (birds) % of species Bergmann conformity 65–71% (mammals); 72–76% (birds) % of species 149 mammals, 94 birds OBSERVED-CONTESTED Meiri & Dayan 2003, J Biogeogr 30:331–351 — percentages via Teplitsky & Millien 2014; primary not read (M22) Read the primary; a value outside these ranges.
NA05-45 NA-05 exponent spread = mean 0.738±0.018 but 51% of exponents outside 0.7–0.8; range <0.5 to >1.0 dimensionless exponent spread mean 0.738±0.018 but 51% of exponents outside 0.7–0.8; range <0.5 to >1.0 dimensionless 146 relations (Peters 1983), 72% vertebrate OBSERVED-REPLICATED Glazier 2005, Biol Rev 80:611–662 Recount the distribution.
NA05-46 NA-05 intraspecific spread = 0.3 to 1.8; mean 0.724, mode 0.667 dimensionless intraspecific spread 0.3 to 1.8; mean 0.724, mode 0.667 dimensionless 220 species (Withers 1992) OBSERVED-REPLICATED Glazier 2005 Recount.
NA05-47 NA-05 MLBH bounds = 2/3 (surface-area limits) to 1 (mass/volume power limits) dimensionless MLBH bounds 2/3 (surface-area limits) to 1 (mass/volume power limits) dimensionless metabolic-level boundaries hypothesis HYPOTHESIZED Glazier 2005, 2010, Biol Rev 85:111–138 An exponent stably outside [2/3, 1] with a demonstrated mechanism.

NA-06 — The frequencies: rhythm, resonance, and the honest fence around them

Source: encyclopedia/wing-NATURA/NA-06-frequencies-rhythm-and-resonance.md · 24 rows

row_id chapter claim symbol value units scope class source falsifier
NA06-01 NA-06 St = fA/U = 0.2 – 0.4 dimensionless St = fA/U 0.2 – 0.4 dimensionless cruising flight/swimming; birds, bats, insects, fish, cetaceans OBSERVED-REPLICATED Taylor, Nudds & Thomas (2003) Nature 425:707–711, doi:10.1038/nature02000 Film a cruising flapper; measure f, A, U; a cruising taxon consistently outside 0.15–0.5 refutes.
NA06-02 NA-06 St (individual scatter) = 44% of 248 values in 0.225–0.275 dimensionless St (individual scatter) 44% of 248 values in 0.225–0.275 dimensionless 6 odontocete species, captive OBSERVED-REPLICATED Rohr & Fish (2004) JEB 207:1633–1642, doi:10.1242/jeb.00948 Re-measure; a tight unimodal distribution would refute 'considerable scatter'.
NA06-03 NA-06 St_optimal (size-dependent) = 0.15 → 0.8 dimensionless St_optimal (size-dependent) 0.15 → 0.8 dimensionless largest cetaceans → smallest tadpoles; Lighthill elongated-body model MODELED (assumes elongated-body theory, undulatory propulsion) Eloy (2012) J. Fluids Struct. 30:205–218, doi:10.1016/j.jfluidstructs.2012.02.008 Measure small-animal St; values pinned at 0.2–0.4 regardless of size would refute.
NA06-04 NA-06 Fr = v²/gL at walk→run = ≈ 0.5 dimensionless Fr = v²/gL at walk→run ≈ 0.5 dimensionless adult humans, 1 g, Earth OBSERVED-CONTESTED Alexander (1983) J. Zool.; Kram et al. (1997) Already hit: see next row.
NA06-05 NA-06 Fr at walk→run, lunar g = 1.39 ± 0.45 (predicted 0.5) dimensionless Fr at walk→run, lunar g 1.39 ± 0.45 (predicted 0.5) dimensionless 8 humans, actual lunar gravity OBSERVED-REPLICATED De Witt et al. (2014) JEB 217:3200–3203, doi:10.1242/jeb.105684 Repeat in reduced g; Fr ≈ 0.5 would restore the hypothesis.
NA06-06 NA-06 u (trackway speed) = u = 0.25·g^0.5·λ^1.67·h^(−1.17) m·s⁻¹ u (trackway speed) u = 0.25·g^0.5·λ^1.67·h^(−1.17) m·s⁻¹ bipedal trackways; h ≈ 4× footprint MODELED (assumes dynamic similarity + hip-height proxy) Alexander (1976) Nature 261:129–130 Already hit: see next row.
NA06-07 NA-06 Trackway speed error = calculated = 1.17× – 4.74× measured (typ. ~2×) ratio Trackway speed error calculated = 1.17× – 4.74× measured (typ. ~2×) ratio guineafowl, compliant mud, 92 strides OBSERVED-REPLICATED Prescott, Griffin, Demuth et al. (2025) Biol. Lett. 21:20250191, doi:10.1098/rsbl.2025.0191 Repeat on more taxa/substrates; ratio ≈ 1.0 would restore the method.
NA06-08 NA-06 f_heart, Suncus etruscus (2 g) = resting 835 ± 107; max 1093 ± 235; peak single 1511 min⁻¹ f_heart, Suncus etruscus (2 g) resting 835 ± 107; max 1093 ± 235; peak single 1511 min⁻¹ 22 °C ambient, smallest mammal OBSERVED-REPLICATED Jürgens et al. (1996) JEB 199:2579–2584 Re-measure; a resting rate <500 min⁻¹ refutes.
NA06-09 NA-06 f_heart, blue whale (~70 t) = dive 4–8 (min 2); surface 25–37; predicted resting 15 bpm f_heart, blue whale (~70 t) dive 4–8 (min 2); surface 25–37; predicted resting 15 bpm foraging dive cycle, ≤184 m, ≤16.5 min OBSERVED-REPLICATED Goldbogen et al. (2019) PNAS 116:25329–25332 Re-tag; a flat rate near 15 bpm across the dive cycle refutes.
NA06-10 NA-06 Metabolic/rate exponent = 2/3 vs 3/4 — disputed dimensionless Metabolic/rate exponent 2/3 vs 3/4 — disputed dimensionless mammals; lineage-dependent OBSERVED-CONTESTED 3/4: Kleiber-family. 2/3: White & Seymour (2003) PNAS 100:4046–4049 (619 spp.); Dodds, Rothman & Weitz (2001) JTB; lineage-varying: Capellini, Venditti & Barton (2010) Ecology 91(9) A phylogenetically-controlled dataset where all lineages converge on one exponent would settle it.
NA06-11 NA-06 EEG band bounds = delta 0.5–1.5 → 2.5–6; alpha 7.5–8.5 → 11–14; gamma 20–37 → 38–100 Hz EEG band bounds delta 0.5–1.5 → 2.5–6; alpha 7.5–8.5 → 11–14; gamma 20–37 → 38–100 Hz 135 resting-state EEG studies OBSERVED-CONTESTED (bands real; bounds conventional) Newson (2018), Sapien Labs, survey of 135 studies; Buzsáki & Draguhn (2004) Science 304:1926–1929 A field-wide consensus definition with <1 Hz spread would refute 'remarkable inconsistency'.
NA06-12 NA-06 τ_circadian (human, free-running) = 24.18 (earlier reports 13–65, median 25.2 — artefactual) h τ_circadian (human, free-running) 24.18 (earlier reports 13–65, median 25.2 — artefactual) h controlled lighting, young + older adults OBSERVED-REPLICATED Czeisler et al. (1999) Science 284:2177–2181, doi:10.1126/science.284.5423.2177 Forced-desynchrony replication; mean ≠ 24.18 ± tight CI refutes.
NA06-13 NA-06 Kinesin step = 8 nm Kinesin step 8 nm single molecule, in vitro, microtubule OBSERVED-REPLICATED Svoboda, Schmidt, Schnapp & Block (1993) Nature 365:721–727 Trap interferometry showing a different modal step refutes.
NA06-14 NA-06 Kinesin velocity = ~800 nm·s⁻¹ Kinesin velocity ~800 nm·s⁻¹ low load, saturating ATP, in vitro, buffer; clamp range F=1–8 pN, [ATP]=1 µM–2 mM OBSERVED-REPLICATED Visscher, Schnitzer & Block (1999) Nature 400:184–189, doi:10.1038/22146 Force-clamp at stated condition; a load/[ATP]-independent velocity refutes.
NA06-15 NA-06 F₁-ATPase rotation = ~130 rev·s⁻¹; 120° = ~90° + ~30° substeps, two ~1 ms reactions rev·s⁻¹ / degrees F₁-ATPase rotation ~130 rev·s⁻¹; 120° = ~90° + ~30° substeps, two ~1 ms reactions rev·s⁻¹ / degrees saturating ATP; mechanism holds to nM ATP OBSERVED-REPLICATED Yasuda et al. (2001) Nature 410:898–904, doi:10.1038/35073513; Noji et al. (1997) Nature 386:299–302 Sub-ms imaging showing a single unbroken 120° step refutes.
NA06-16 NA-06 RNAP elongation = E. coli 40–80; HeLa Pol II 30–100 (median 60) nt·s⁻¹ RNAP elongation E. coli 40–80; HeLa Pol II 30–100 (median 60) nt·s⁻¹ E. coli 37 °C; HeLa in vivo OBSERVED-REPLICATED BioNumbers BNID 104900/104902/108488; 111027 Single-molecule re-measure at stated temperature.
NA06-17 NA-06 Ribosome elongation = ~20 aa·s⁻¹ Ribosome elongation ~20 aa·s⁻¹ E. coli, 37 °C OBSERVED-REPLICATED BioNumbers BNID 100059/105067/108490 As above.
NA06-18 NA-06 f_Schumann = 7.83; harmonics 14.1, 20.3, 26.3, 32.5 (ideal theory predicts ~11) Hz f_Schumann 7.83; harmonics 14.1, 20.3, 26.3, 32.5 (ideal theory predicts ~11) Hz Earth–ionosphere cavity, global OBSERVED-REPLICATED Schumann (1952) Z. Naturforsch. A 7:149–154, doi:10.1515/zna-1952-0202; Balser & Wagner (1960) Nature 188:638–641 ELF receiver; absence of a ~7.8 Hz peak refutes.
NA06-19 NA-06 Q_Schumann = 3.5, 4.5, 6.2, 7.7, 8.2 (modes 1–5); width ~20% dimensionless Q_Schumann 3.5, 4.5, 6.2, 7.7, 8.2 (modes 1–5); width ~20% dimensionless Earth–ionosphere cavity OBSERVED-REPLICATED Nickolaenko & Hayakawa (2002), Kluwer Spectral fit; Q ≫ 20 would refute 'low-Q, leaky'.
NA06-20 NA-06 B_Schumann = ~1 (vs Earth static 30,000–50,000) pT B_Schumann ~1 (vs Earth static 30,000–50,000) pT at the surface OBSERVED-REPLICATED Nickolaenko & Hayakawa (2002) Magnetometry; pT-scale amplitude is the measurement.
NA06-21 NA-06 Golden angle, phyllotaxis = ~137.5 degrees Golden angle, phyllotaxis ~137.5 degrees divergence angle, many plant taxa; reproduced in a physical ferrofluid-droplet experiment OBSERVED-REPLICATED Douady & Couder (1992) Phys. Rev. Lett. 68:2098–2101, doi:10.1103/PhysRevLett.68.2098 Repulsion-dynamics experiment at the stated parameter converging on a rational angle instead refutes.
NA06-22 NA-06 f₁ cantilever = f₁ ≈ 0.162·(t/L²)·√(E/ρ) Hz f₁ cantilever f₁ ≈ 0.162·(t/L²)·√(E/ρ) Hz uniform rectangular cantilever, mode 1, small deflection MODELED (Euler–Bernoulli assumptions) Blevins, Formulas for Natural Frequency and Mode Shape (1979) Shake a real beam; deviation beyond Euler–Bernoulli's stated validity refutes.
NA06-23 NA-06 Q of soft biological tissue = NOT-MEASURED Q of soft biological tissue NOT-MEASURED NOT-MEASURED No sourced value obtained; Wakeling, Nigg & Rozitis (2002) J. Appl. Physiol. observe damping increases with muscle activity Obtain a sourced loss tangent / damping ratio and card it.
NA06-24 NA-06 Brainwave entrainment efficacy = NOT-MEASURED Brainwave entrainment efficacy NOT-MEASURED NOT-MEASURED Not assessed in this chapter Pre-registered, powered, sham-controlled trial.

NA-07 — The dimensionless numbers: the cross-scale design toolkit

Source: encyclopedia/wing-NATURA/NA-07-dimensionless-numbers.md · 30 rows

row_id chapter claim symbol value units scope class source falsifier
NA07-01 NA-07 Re (bacterium) = ~10⁻⁴–10⁻⁵ (recomputed 3×10⁻⁵) Re (bacterium) ~10⁻⁴–10⁻⁵ (recomputed 3×10⁻⁵) ~1 μm organism, 30 μm s⁻¹, water OBSERVED-REPLICATED Purcell (1977) Am J Phys 45:3–11 Micron swimmer coasting ≫ 0.1 Å after thrust stops.
NA07-02 NA-07 Re (man swimming) = ~10⁴ Re (man swimming) ~10⁴ human in water OBSERVED-REPLICATED Purcell (1977) Measured u, L, ν disagreeing by >1 order.
NA07-03 NA-07 Re (blue whale) = ~1×10⁸ Re (blue whale) ~1×10⁸ L ≈ 25 m, u ≈ 5 m s⁻¹, ν_sw ≈ 10⁻⁶ m² s⁻¹ MODELED (arithmetic in-chapter, sourced inputs) computed; published statements agree at order 10⁸ Sourced cetacean cruise Re outside 10⁷–10⁹.
NA07-04 NA-07 ν (water) = ~10⁻² cm² s⁻¹ ν (water) ~10⁻² cm² s⁻¹ liquid water, room temp OBSERVED-REPLICATED Purcell (1977) Standard viscometry.
NA07-05 NA-07 Coast distance (bacterium) = ~0.1 Å Coast distance (bacterium) ~0.1 Å 1 μm organism, 30 μm s⁻¹, water OBSERVED-REPLICATED Purcell (1977) Observe measurable glide.
NA07-06 NA-07 Stopping time (bacterium) = ~0.6 μs Stopping time (bacterium) ~0.6 μs as above OBSERVED-REPLICATED Purcell (1977) Observe momentum persistence.
NA07-07 NA-07 Pe / "S" (bacterium) = ~10⁻² (recomputed 3×10⁻²) Pe / "S" (bacterium) ~10⁻² (recomputed 3×10⁻²) micron scale, D ≈ 10⁻⁵ cm² s⁻¹ OBSERVED-REPLICATED Purcell (1977) Stirring raising local uptake at Pe ≪ 1.
NA07-08 NA-07 L* = D/u = ~30 (recomputed 33) μm L* = D/u ~30 (recomputed 33) μm small molecule, bacterial speed, water OBSERVED-REPLICATED Purcell (1977) Bacterial run lengths systematically ≠ D/v.
NA07-09 NA-07 Speed for +10% intake = 700 (≈20× achievable) μm s⁻¹ Speed for +10% intake 700 (≈20× achievable) μm s⁻¹ Stokes flow around a sphere MODELED (Purcell's relaxation solution) Purcell (1977) Intake rising faster than √v.
NA07-10 NA-07 Re_c (pipe, sustained) = 2040 ± 10 Re_c (pipe, sustained) 2040 ± 10 smooth circular pipe OBSERVED-CONTESTED Avila et al. (2011) Science 333:192–196 Sustained turbulence reproducibly below 2030.
NA07-11 NA-07 Re_c (pipe, textbook) = ~2300 (range ~2000–4000) Re_c (pipe, textbook) ~2300 (range ~2000–4000) smooth pipe, disturbance-dependent OBSERVED-CONTESTED standard texts; Reynolds (1883) — (answers a different question than 2040).
NA07-12 NA-07 St (cruise) = 0.2–0.4 St (cruise) 0.2–0.4 dolphins, sharks, bony fish; birds/bats/insects at cruise only OBSERVED-REPLICATED Taylor, Nudds & Thomas (2003) Nature 425:707–711 Cruising taxon reproducibly outside 0.2–0.4.
NA07-13 NA-07 St (water walkers) = 0.01–0.1 (arthropods); 0.1–1 (large) St (water walkers) 0.01–0.1 (arthropods); 0.1–1 (large) air–water interface locomotion OBSERVED-REPLICATED Bush & Hu (2006) ARFM 38:339–369 Measured water-walker St outside band.
NA07-14 NA-07 Wo α (ascending aorta) = ≈13.2 (≈20.3 some studies) Wo α (ascending aorta) ≈13.2 (≈20.3 some studies) human ascending aorta OBSERVED-CONTESTED (varies by study/subject) Cardiovasc Eng Technol (2024) doi 10.1007/s13239-024-00723-4 Measured α outside ~10–21 in healthy adults.
NA07-15 NA-07 Wo α (capillary) = ≈0.005 (micro-circulation all <1) Wo α (capillary) ≈0.005 (micro-circulation all <1) human microcirculation OBSERVED-REPLICATED as above Pulsatile inertial profile in a capillary.
NA07-16 NA-07 Dinosaur trackway speeds = 1.0–3.6 m s⁻¹ Dinosaur trackway speeds 1.0–3.6 m s⁻¹ Alexander's Fr method, h ≈ 4× foot length OBSERVED-CONTESTED Alexander (1976) Nature 261:129–130; contra PMC12187409 (2025) Extant-bird validation on compliant substrate contradicting formula.
NA07-17 NA-07 Capillary length ℓ_c = ≈2.6 mm Capillary length ℓ_c ≈2.6 mm air–water, σ ≈ 0.07 N m⁻¹ OBSERVED-REPLICATED Bush & Hu (2006) Direct meniscus measurement.
NA07-18 NA-07 Strider length / weight = 1 cm / 10 dynes (10⁻⁴ N) cm / dyn Strider length / weight 1 cm / 10 dynes (10⁻⁴ N) cm / dyn water striders OBSERVED-REPLICATED Hu, Chan & Bush (2003) Nature 424:663–666 Direct mass measurement.
NA07-19 NA-07 Insect interface-crossing force = 10–100× body weight Insect interface-crossing force 10–100× body weight insects 1–10 dyn, perimeter ~1 cm OBSERVED-REPLICATED Bush & Hu (2006) Measured crossing force ≈ body weight.
NA07-20 NA-07 Min. capillary wave speed c_m = 23 cm s⁻¹ Min. capillary wave speed c_m 23 cm s⁻¹ air–water interface OBSERVED-REPLICATED Lighthill (1979), via Bush & Hu (2006) Waves radiated by steady motion below 23 cm s⁻¹.
NA07-21 NA-07 Kn regime bounds = <0.01 / 0.01–0.1 / 0.1–10 / >10 Kn regime bounds <0.01 / 0.01–0.1 / 0.1–10 / >10 gas flows OBSERVED-REPLICATED standard rarefied-gas references No-slip Navier–Stokes matching data at Kn > 0.1.
NA07-22 NA-07 λ (air) = ≈68 nm λ (air) ≈68 nm 1 atm, 25 °C OBSERVED-REPLICATED standard kinetic theory Direct mean-free-path measurement.
NA07-23 NA-07 Ra_c = 1707.762 (wavenumber ≈3.117) Ra_c 1707.762 (wavenumber ≈3.117) rigid–rigid boundaries, Pr-independent at onset OBSERVED-REPLICATED Rayleigh–Bénard linear stability Onset reproducibly below Ra ≈ 1700, rigid–rigid.
NA07-24 NA-07 Pr = 7 (water) / 0.71 (air) / 0.025 (mercury) Pr 7 (water) / 0.71 (air) / 0.025 (mercury) near room temperature OBSERVED-REPLICATED standard property tables Property measurement.
NA07-25 NA-07 Bi threshold = 0.1 Bi threshold 0.1 lumped-capacitance admissibility MODELED (engineering convention, not a law) standard heat-transfer texts Material internal gradients at Bi < 0.1.
NA07-26 NA-07 Ma threshold = 0.3 Ma threshold 0.3 incompressibility admissible (Δρ <~5%) MODELED (convention) standard gas dynamics Density change >5% below Ma 0.3.
NA07-27 NA-07 Sphere drag crisis = Re ≈ 3×10⁵; C_d ≈ 0.5 → ~0.1 Sphere drag crisis Re ≈ 3×10⁵; C_d ≈ 0.5 → ~0.1 smooth sphere OBSERVED-REPLICATED standard sphere drag curve Smooth-sphere C_d not dropping near 3×10⁵.
NA07-28 NA-07 Golden angle = ≈137.5 degrees (dimensionless) Golden angle ≈137.5 degrees (dimensionless) phyllotactic divergence; reproduced physically OBSERVED-REPLICATED Douady & Couder (1992) PRL 68:2098–2101 Repulsion dynamics failing to select ≈137.5°.
NA07-29 NA-07 Earth mantle viscosity = 10²¹ poise Earth mantle viscosity 10²¹ poise mantle flow MODELED (geophysical inference) quoted in Purcell (1977) Independent rheological determination.
NA07-30 NA-07 Prefactor f in Π₁ = f(Π₂,…) — no value carried Prefactor f in Π₁ = f(Π₂,…) any Buckingham result NOT-MEASURED (this is the point — see fence)

NA-08 — Design down to the cell level: the cell as an engineered system

Source: encyclopedia/wing-NATURA/NA-08-cell-level-design.md · 49 rows

row_id chapter claim symbol value units scope class source falsifier
NA08-01 NA-08 D_GFP,ec = 7.7 ± 2.5 µm²/s D_GFP,ec 7.7 ± 2.5 µm²/s GFP (27 kDa), E. coli cytoplasm, FRAP/photoactivation OBSERVED-REPLICATED BNID 100193; Elowitz et al. 1999, J Bacteriol 181(1):197–203 Repeat FRAP; a value outside 3–14 µm²/s under stated conditions refutes.
NA08-02 NA-08 D_GFP,euk = 27 µm²/s D_GFP,euk 27 µm²/s GFP-S65T, CHO cytoplasm OBSERVED-REPLICATED BNID 101997; Swaminathan et al. 1997, Biophys J 72(4):1900–7 Independent FRAP in eukaryotic cytoplasm disagreeing >2×.
NA08-03 NA-08 t(1 m) = ~6.2 × 10⁹ (≈195 yr) s t(1 m) ~6.2 × 10⁹ (≈195 yr) s 3D diffusion, D = 27 µm²/s, t = L²/6D MODELED Computed in-chapter from BNID 101997 + <r²>=6Dt Arithmetic error, or a demonstration of 1 m protein transport by diffusion alone.
NA08-04 NA-08 S/V = 6 vs 0.3 µm⁻¹ S/V 6 vs 0.3 µm⁻¹ sphere 3/R; R = 0.5 µm vs 10 µm MODELED Computed in-chapter (geometry) Geometric error.
NA08-05 NA-08 L_Thio = 100–300 (max 750) µm L_Thio 100–300 (max 750) µm Thiomargarita namibiensis, cell width OBSERVED-REPLICATED Schulz et al. 1999, Science 284:493–495 Larger true-cytoplasm cell found.
NA08-06 NA-08 f_vac = 80–98 % of cell volume f_vac 80–98 % of cell volume Thiomargarita nitrate vacuole; cytoplasm shell ~1–2 µm OBSERVED-REPLICATED Schulz et al. 1999 Show cytoplasm fills the cell.
NA08-07 NA-08 ATP_ec = ~10⁷ ATP/s/cell ATP_ec ~10⁷ ATP/s/cell E. coli, growing OBSERVED-REPLICATED BNID 111461, 110656, 110628 Independent measurement >10× off.
NA08-08 NA-08 ATP_mam = ~10⁹ ATP/s/cell ATP_mam ~10⁹ ATP/s/cell human fibroblast, ~3,000 µm³ OBSERVED-REPLICATED BNID 111476 As above.
NA08-09 NA-08 P_ec = ~10⁻¹² (1,000 W/kg) W/cell P_ec ~10⁻¹² (1,000 W/kg) W/cell E. coli, glucose minimal media OBSERVED-REPLICATED BNID 109687 As above.
NA08-10 NA-08 c_pep = 4 ATP per peptide bond c_pep 4 ATP per peptide bond 2 (PPi, aa-tRNA charging) + 1 GTP × 2 elongation factors OBSERVED-REPLICATED Milo & Phillips 2015, Cell Biology by the Numbers Show a bond formed for <4.
NA08-11 NA-08 f_prot = 61 % of total cell ATP f_prot 61 % of total cell ATP E. coli, rich medium; 19.1 of 31.4 mmol ATP/g cells MODELED Milo & Phillips 2015 (budget model) Recompute the budget; a different dominant sink.
NA08-12 NA-08 ΔG_ATP = −47 to −50 (≈20 k_BT ≈ 80–90 pN·nm) kJ/mol ΔG_ATP −47 to −50 (≈20 k_BT ≈ 80–90 pN·nm) kJ/mol in vivo; E. coli on glucose −47 OBSERVED-REPLICATED BioNumbers (How much energy is released in ATP hydrolysis?) Measured phosphorylation potential outside −40 to −65.
NA08-13 NA-08 ΔG°'_ATP = −28 to −34 (≈12 k_BT) kJ/mol ΔG°'_ATP −28 to −34 (≈12 k_BT) kJ/mol standard conditions (1 M) — NOT the cell OBSERVED-REPLICATED as above
NA08-14 NA-08 τ_F1 = ~40 pN·nm τ_F1 ~40 pN·nm F₁-ATPase torque, constant across load/speed OBSERVED-REPLICATED Yasuda et al. 1998, Cell 93:1117–1124 Load-dependent torque under same assay.
NA08-15 NA-08 W_F1 = ~80 (vs ~90 available) pN·nm per 120° step W_F1 ~80 (vs ~90 available) pN·nm per 120° step F₁, single-molecule, in vitro OBSERVED-REPLICATED Yasuda et al. 1998; Noji et al. 1997, Nature 386:299–302 Work/step measured well below 80.
NA08-16 NA-08 ω_F1 = ~130 rev/s ω_F1 ~130 rev/s F₁, saturating ATP; 120° = 90° + 30° substeps OBSERVED-REPLICATED Yasuda et al. 2001, Nature 410:898–904 Substep structure fails to replicate.
NA08-17 NA-08 d_kin = 8 nm/step d_kin 8 nm/step kinesin-1 on microtubule, optical trap OBSERVED-REPLICATED Svoboda et al. 1993, Nature 365:721–727 A different step periodicity.
NA08-18 NA-08 n_ATP,kin = 1 ATP per 8-nm step n_ATP,kin 1 ATP per 8-nm step kinesin-1 OBSERVED-REPLICATED Schnitzer & Block 1997, Nature 388:386–390 Measured coupling ≠ 1:1.
NA08-19 NA-08 F_stall,kin = 5–6 or 7–8 pN F_stall,kin 5–6 or 7–8 pN 5–6: Svoboda & Block 1994. 7–8: force clamp, Visscher 1999 OBSERVED-CONTESTED Svoboda & Block 1994, Cell 77:773–784; Visscher et al. 1999, Nature 400:184–189 Resolve by assay; do not average. A study reconciling both under one method.
NA08-20 NA-08 v_kin = ~0.5–1 (commonly ~0.8) µm/s v_kin ~0.5–1 (commonly ~0.8) µm/s saturating ATP, near-zero load, in vitro OBSERVED-REPLICATED Svoboda & Block 1994 (force–velocity) Outside range under stated conditions.
NA08-21 NA-08 d_myoV = ~36 nm/step d_myoV ~36 nm/step myosin-V on actin; stall ~2–3 pN OBSERVED-REPLICATED single-molecule optical trap literature Different step periodicity.
NA08-22 NA-08 d_dyn = 8 (or 8→32, load-dependent) nm/step d_dyn 8 (or 8→32, load-dependent) nm/step cytoplasmic dynein — unresolved OBSERVED-CONTESTED Optical-tweezer reports disagree A method resolving load-dependence.
NA08-23 NA-08 r_rib,ec = ~20 (range 4–22) aa/s r_rib,ec ~20 (range 4–22) aa/s E. coli, growth-rate dependent OBSERVED-REPLICATED BNID 100059, 105067, 108490 Outside 4–22 at stated growth rate.
NA08-24 NA-08 r_rib,euk = 3–10 (yeast, 30 °C); ~6 (mouse ES) aa/s r_rib,euk 3–10 (yeast, 30 °C); ~6 (mouse ES) aa/s eukaryote OBSERVED-REPLICATED BNID 107871, 107952 As above.
NA08-25 NA-08 ε_rib = 10⁻⁴–10⁻³ per codon ε_rib 10⁻⁴–10⁻³ per codon missense/misreading OBSERVED-REPLICATED Kramer & Farabaugh 2007, RNA 13:87–96 Measured rate outside range.
NA08-26 NA-08 r_RNAP,ec = 40–80 nt/s r_RNAP,ec 40–80 nt/s E. coli OBSERVED-REPLICATED BNID 104900, 104902, 108488 Outside range.
NA08-27 NA-08 r_RNAP,mam = 50–100 elongation vs ~6 average-across-gene nt/s r_RNAP,mam 50–100 elongation vs ~6 average-across-gene nt/s mammalian — do not conflate OBSERVED-REPLICATED BNID 105566/105113/100662; BNID 100661 Show the two measure the same thing.
NA08-28 NA-08 ε_pol = ~10⁻⁴–10⁻⁵ per nt ε_pol ~10⁻⁴–10⁻⁵ per nt polymerase base selectivity ALONE OBSERVED-REPLICATED Kunkel & Bebenek 2000, Annu Rev Biochem; Kunkel 2004, JBC Exonuclease-deficient rate outside range.
NA08-29 NA-08 ε_proof = ~10⁻⁶–10⁻⁷ (×10²–10³ gain) per nt ε_proof ~10⁻⁶–10⁻⁷ (×10²–10³ gain) per nt + exonucleolytic proofreading OBSERVED-REPLICATED as above MMR-deficient rate outside range.
NA08-30 NA-08 ε_final = 10⁻⁸–10⁻¹⁰ per nt ε_final 10⁻⁸–10⁻¹⁰ per nt + mismatch repair; pro- and eukaryotes OBSERVED-REPLICATED as above Whole-genome mutation accumulation outside range.
NA08-31 NA-08 d_bilayer = 4–5 nm d_bilayer 4–5 nm lipid bilayer thickness OBSERVED-REPLICATED standard membrane biophysics; Milo & Phillips 2015 Structural measurement outside range.
NA08-32 NA-08 V_m = ~−70 mV V_m ~−70 mV resting neuron OBSERVED-REPLICATED standard electrophysiology
NA08-33 NA-08 E_m = 1.4–1.8 × 10⁷ V/m E_m 1.4–1.8 × 10⁷ V/m V/d, 70 mV over 4–5 nm MODELED Computed in-chapter from V_m and d_bilayer Arithmetic error, or d/V refuted.
NA08-34 NA-08 E_air = ≈3 × 10⁶ V/m E_air ≈3 × 10⁶ V/m dry air, 1 atm — dielectric strength OBSERVED-REPLICATED (not primary-sourced in this pass) standard physical reference Fetch a primary reference.
NA08-35 NA-08 C_m = ~1 (0.01) µF/cm² (F/m²) C_m ~1 (0.01) µF/cm² (F/m²) specific membrane capacitance, near-invariant across cell types OBSERVED-REPLICATED standard membrane biophysics (Cole; Hodgkin & Huxley 1952) A cell type deviating >2× with intact bilayer.
NA08-36 NA-08 κ_MT = 2.2 × 10⁻²³ (±6.4%); 2.1 × 10⁻²³ (±4.7%, rhodamine) N·m² κ_MT 2.2 × 10⁻²³ (±6.4%); 2.1 × 10⁻²³ (±4.7%, rhodamine) N·m² taxol-stabilised microtubule, flexural rigidity OBSERVED-REPLICATED Gittes et al. 1993, J Cell Biol 120(4):923–934 Independent measurement >2× off.
NA08-37 NA-08 ℓ_p,MT = ~5,200 (5.2 mm) µm ℓ_p,MT ~5,200 (5.2 mm) µm microtubule persistence length, ℓ_p = κ/k_BT OBSERVED-REPLICATED Gittes et al. 1993 see contested row below.
NA08-38 NA-08 ℓ_p,MT length-dependence = persistence length varies with filament length ℓ_p,MT length-dependence persistence length varies with filament length grafted MTs OBSERVED-CONTESTED Pampaloni et al. 2006, PNAS — length-dependent ℓ_p; contradicts a single MT constant Resolve; a method showing length-independence.
NA08-39 NA-08 ℓ_p,actin = ~17.7 µm ℓ_p,actin ~17.7 µm actin filament, rhodamine-phalloidin OBSERVED-REPLICATED Gittes et al. 1993 Independent measurement >2× off.
NA08-40 NA-08 ℓ_p,MT/ℓ_p,actin = ~294 (~300×) dimensionless ℓ_p,MT/ℓ_p,actin ~294 (~300×) dimensionless Gittes values MODELED Computed in-chapter Ratio recomputation.
NA08-41 NA-08 δc/c scaling = ∝ (D·a·c·T)^(−1/2) dimensionless δc/c scaling ∝ (D·a·c·T)^(−1/2) dimensionless diffusion-limited chemoreception OBSERVED-REPLICATED (as a scaling) Berg & Purcell 1977, Biophys J 20:193–219 A sensor beating the −1/2 exponent.
NA08-42 NA-08 δc/c prefactor = disputed δc/c prefactor disputed B–P vs Bialek–Setayeshgar vs Kaizu: B–S term missing 1/(2(1−n̄)) OBSERVED-CONTESTED / MODELED Bialek & Setayeshgar 2005, PNAS 102(29):10040–5; Kaizu et al. 2014, Biophys J 106(4):976–85 A treatment retaining receptor–ligand correlations that settles the constant.
NA08-43 NA-08 Re = ~6 × 10⁻⁵ dimensionless Re ~6 × 10⁻⁵ dimensionless E. coli: v ≈ 3 × 10⁻⁵ m/s, L = 2 µm, ρ = 10³ kg/m³, µ = 10⁻³ Pa·s MODELED Computed in-chapter; regime per Purcell 1977, Am J Phys 45:3–11 Inputs refuted (swim speed is order-of-magnitude).
NA08-44 NA-08 Pe = ~0.06–0.1 dimensionless Pe ~0.06–0.1 dimensionless same, D ~ 10⁻⁹ m²/s (small molecule) MODELED Computed in-chapter Demonstrate advective mixing gain at this scale.
NA08-45 NA-08 f_Schumann = 7.83 (harmonics ~14.3, 20.8, 27.3, 33.8) Hz f_Schumann 7.83 (harmonics ~14.3, 20.8, 27.3, 33.8) Hz Earth–ionosphere cavity fundamental OBSERVED-REPLICATED Schumann 1952 (prediction); Schumann & König 1954 (confirmation); Balser & Wagner 1960 ELF measurement failing to find the cavity mode.
NA08-46 NA-08 E_Schumann@membrane — no value carried E_Schumann@membrane V/m field amplitude at a cell membrane NOT-MEASURED not sourced in this pass Measure amplitude; compare to k_BT and membrane noise.
NA08-47 NA-08 θ_golden = ~137.5 degrees θ_golden ~137.5 degrees phyllotaxis divergence angle; physically reproduced OBSERVED-REPLICATED Douady & Couder 1992, Phys Rev Lett 68:2098–2101 Repulsion-dynamics experiment failing to converge to the golden mean.
NA08-48 NA-08 E_neuron split = AP 47 / postsyn-glutamate 34 / rest 13 / recycling 3 % of signalling ATP E_neuron split AP 47 / postsyn-glutamate 34 / rest 13 / recycling 3 % of signalling ATP rodent grey matter — modelled apportionment, revised 2012 MODELED Attwell & Laughlin 2001, JCBFM 21(10):1133–45; rev. Howarth et al. 2012 Recompute the budget; the 2012 revision supersedes on any point of conflict.
NA08-49 NA-08 n_Na/ATP = 3 Na⁺ per 1 ATP ions/ATP n_Na/ATP 3 Na⁺ per 1 ATP ions/ATP Na⁺/K⁺-ATPase stoichiometry OBSERVED-REPLICATED Attwell & Laughlin 2001 and standard references Measured stoichiometry ≠ 3:2:1.

NA-09 — Morphogenesis: how a pattern comes from no pattern

Source: encyclopedia/wing-NATURA/NA-09-morphogenesis-and-development.md · 18 rows

row_id chapter claim symbol value units scope class source falsifier
NA09-01 NA-09 λ_Bcd = ≈ 100 μm λ_Bcd ≈ 100 μm D. melanogaster early embryo, L ≈ 490 μm OBSERVED-REPLICATED Gregor et al. (2007a), Cell 130(1):141–152 Independent Bcd-GFP profiling giving a decay constant far outside ~80–120 μm at standard temperature.
NA09-02 NA-09 L = ≈ 490 μm L ≈ 490 μm same embryo, AP axis OBSERVED-REPLICATED Gregor et al. (2007a) Direct imaging outside ~450–550 μm.
NA09-03 NA-09 D_Bcd = 0.30 ± 0.09 (FRAP); 0.37 ± 0.05 (indirect) μm²/s D_Bcd 0.30 ± 0.09 (FRAP); 0.37 ± 0.05 (indirect) μm²/s cortical cytoplasm, cycles 10–14 OBSERVED-CONTESTED — incompatible with λ ≈ 100 μm under SDD Gregor et al. (2007a); dispute printed in Grimm et al. (2010), Development 137(14):2253–2264 A method giving D large enough that √(Dτ) reproduces λ within the ~1 h formation window would dissolve the tension.
NA09-04 NA-09 τ_required = ≈ 9 (≈3.3×10⁴ s) hours τ_required ≈ 9 (≈3.3×10⁴ s) hours SDD arithmetic λ²/D from the two rows above MODELED (derivation from cited inputs) Grimm et al. (2010): D is 'an order of magnitude too small' A non-SDD transport mechanism (e.g. mRNA-distribution or active transport) reconciling λ, D and the ~1 h window.
NA09-05 NA-09 Δc/c = ≈ 10 % Δc/c ≈ 10 % adjacent nuclei (~8 μm apart) at the hb boundary, cycle 14 OBSERVED-REPLICATED Gregor et al. (2007b), Cell 130(1):153–164 Measured inter-nuclear Bcd difference at the boundary ≫ or ≪ 10%.
NA09-06 NA-09 σ_x (hb domain) = 2–3 % egg length σ_x (hb domain) 2–3 % egg length hb transcription domain position, embryo-to-embryo OBSERVED-REPLICATED Gregor et al. (2007b) Reproducibility measured far worse (≫3% EL) in a clean prep.
NA09-07 NA-09 σ_x (4 gap genes) = ≈ 1 % egg length σ_x (4 gap genes) ≈ 1 % egg length joint gap-gene readout, AP axis, near-constant along axis OBSERVED-REPLICATED Dubuis et al. (2013), PNAS 110(41):16301–16308 Decoding a fresh dataset yielding error ≫1% EL.
NA09-08 NA-09 τ_Berg-Purcell = order of 2 hours τ_Berg-Purcell order of 2 hours time for ONE hb Bcd binding site to read c to 10% accuracy MODELED (assumes: diffusion-limited binding, single independent site, Berg-Purcell counting) Gregor et al. (2007b) A binding-kinetics measurement showing single-site 10% accuracy achievable in minutes.
NA09-09 NA-09 k_c² = √( det J / (D_u D_v) ) μm⁻² k_c² √( det J / (D_u D_v) ) μm⁻² 2-species reaction-diffusion at instability onset MODELED (assumes: two species, linear stability about a homogeneous fixed point) Turing (1952), Phil Trans R Soc B 237(641):37–72; Murray (2003) ch. 2 A measured 2-species Turing wavelength not tracking (D_u D_v/det J)^(1/4).
NA09-10 NA-09 d = D_v/D_u = > 1, strictly dimensionless d = D_v/D_u > 1, strictly dimensionless 2-species activator–inhibitor only MODELED Turing (1952); Murray (2003) An observed 2-species Turing pattern with measured D_u = D_v and no cell-autonomous node.
NA09-11 NA-09 d_c (universal) = NOT-MEASURED — no such constant d_c (universal) NOT-MEASURED — no such constant d_c is kinetics-dependent, not a constant of nature NOT-MEASURED Exhibit a kinetics-independent threshold; none is known.
NA09-12 NA-09 d requirement (≥3 nodes) = can be any ratio, incl. 1:1 dimensionless d requirement (≥3 nodes) can be any ratio, incl. 1:1 dimensionless networks containing cell-autonomous (non-diffusing) nodes MODELED Marcon et al. (2016), eLife 5:e14022 A proof that cell-autonomous nodes cannot relax the constraint.
NA09-13 NA-09 g_c = ≈ 1.29 dimensionless (tangential expansion ratio) g_c ≈ 1.29 dimensionless (tangential expansion ratio) grey matter on white, μ_grey/μ_white ≈ 1, soft-solid model MODELED Tallinen et al. (2014), PNAS 111:12667–12672 Physical/gel model sulcifying at a markedly different expansion.
NA09-14 NA-09 σ (limb bud mesoderm) = 20.1 dyn/cm σ (limb bud mesoderm) 20.1 dyn/cm chick embryonic tissue aggregate, parallel-plate compression OBSERVED-REPLICATED Foty et al. (1996), Development 122(5):1611–1620 Remeasurement inverting the envelopment hierarchy.
NA09-15 NA-09 σ (pigmented epithelium / heart / liver / neural retina) = 12.6 / 8.5 / 4.6 / 1.6 dyn/cm σ (pigmented epithelium / heart / liver / neural retina) 12.6 / 8.5 / 4.6 / 1.6 dyn/cm as above OBSERVED-REPLICATED Foty et al. (1996) A tissue enveloping one of higher measured σ.
NA09-16 NA-09 σ vs cadherin density = linear σ vs cadherin density linear transfected L-cell aggregates (E-, N-, P-cadherin) OBSERVED-REPLICATED Foty & Steinberg (2005), Dev Biol 278:255–263 Titration showing no monotone σ–cadherin relation.
NA09-17 NA-09 Dpp mitosis trigger = ≈ 50 % increase in signalling since cell-cycle start Dpp mitosis trigger ≈ 50 % increase in signalling since cell-cycle start Drosophila wing imaginal disc OBSERVED-REPLICATED Wartlick et al. (2011), Science 331:1154–1159 Division timing uncorrelated with relative Dpp increase.
NA09-18 NA-09 Golden angle = ≈ 137.5 degrees Golden angle ≈ 137.5 degrees phyllotactic divergence angle; reproduced physically OBSERVED-REPLICATED with mechanism Douady & Couder (1992), Phys Rev Lett 68:2098–2101 A repulsion-dynamics system in the same parameter regime not converging to ~137.5°.

NA-10 — The scale ladder: quark to galaxy, and the gradients between

Source: encyclopedia/wing-NATURA/NA-10-the-scale-ladder-and-gradients.md · 47 rows

row_id chapter claim symbol value units scope class source falsifier
NA10-01 NA-10 r_p = 8.4075(64) × 10⁻¹⁶ m r_p 8.4075(64) × 10⁻¹⁶ m proton rms charge radius OBSERVED-REPLICATED CODATA 2022 (NIST) Next CODATA adjustment moves it beyond stated u.
NA10-02 NA-10 t_strong = ~2.8 × 10⁻²⁴ s t_strong ~2.8 × 10⁻²⁴ s r_p/c — light-crossing time of a nucleon MODELED Computed in-chapter from r_p (CODATA 2022) and c Arithmetic error; or a claim this is a measured interaction time (it is not).
NA10-03 NA-10 α_s(m_Z) = 0.1180 ± 0.0009 dimensionless α_s(m_Z) 0.1180 ± 0.0009 dimensionless strong coupling at the Z mass; runs to O(1) at ~1 GeV OBSERVED-REPLICATED PDG world average (recent editions give 0.1179–0.1180 ± 0.0009) A PDG edition outside 0.117–0.119.
NA10-04 NA-10 a₀ = 5.291 772 105 44(82) × 10⁻¹¹ m a₀ 5.291 772 105 44(82) × 10⁻¹¹ m Bohr radius OBSERVED-REPLICATED CODATA 2022 (NIST) Next CODATA adjustment beyond stated u.
NA10-05 NA-10 α⁻¹ = 137.035 999 177(21) dimensionless α⁻¹ 137.035 999 177(21) dimensionless fine-structure constant; α = 7.297 352 5643(11) × 10⁻³ OBSERVED-REPLICATED CODATA 2022 (NIST) As above.
NA10-06 NA-10 T_Bohr = ~1.5 × 10⁻¹⁶ s T_Bohr ~1.5 × 10⁻¹⁶ s 2πa₀/(αc), H ground state MODELED Computed in-chapter from CODATA 2022 a₀, α, c Arithmetic error.
NA10-07 NA-10 E_ion,H = 13.6 eV E_ion,H 13.6 eV hydrogen ionization OBSERVED-REPLICATED (standard reference; primary not read in this pass) standard atomic physics (NIST ASD) Fetch NIST ASD; a value outside 13.59–13.60.
NA10-08 NA-10 E_C–C = ~348 kJ/mol E_C–C ~348 kJ/mol C–C bond dissociation enthalpy OBSERVED-REPLICATED (standard reference; primary not read in this pass) standard thermochemical tables Fetch a primary table; value outside ~330–360.
NA10-09 NA-10 E_bond/RT = ~140 dimensionless E_bond/RT ~140 dimensionless 348 kJ/mol ÷ RT (2.494 kJ/mol at 300 K) MODELED Computed in-chapter Arithmetic error.
NA10-10 NA-10 t_vib = ~1.1 × 10⁻¹⁴ s t_vib ~1.1 × 10⁻¹⁴ s C–H stretch, ~3000 cm⁻¹ MODELED Computed in-chapter from a standard IR wavenumber Wavenumber refuted.
NA10-11 NA-10 ΔG_fold = ~20–63 (5–15 kcal/mol) kJ/mol ΔG_fold ~20–63 (5–15 kcal/mol) kJ/mol net protein folding stability, typical globular OBSERVED-REPLICATED (standard range; primary not sourced in this pass) standard protein biophysics Locate a primary survey; range refuted.
NA10-12 NA-10 ν_water = ~1.0 × 10⁻⁶ m²/s ν_water ~1.0 × 10⁻⁶ m²/s kinematic viscosity, 20 °C OBSERVED-REPLICATED (standard reference) standard fluid-property tables Measurement outside ~0.9–1.1 × 10⁻⁶ at 20 °C.
NA10-13 NA-10 Re_bact = ~10⁻⁵ (Vogel); ~6 × 10⁻⁵ (computed, E. coli) dimensionless Re_bact ~10⁻⁵ (Vogel); ~6 × 10⁻⁵ (computed, E. coli) dimensionless bacterium, 0.01 mm/s (Vogel) vs E. coli 30 µm/s MODELED Vogel, Life in Moving Fluids, Princeton UP (table via secondary summary — primary not read in this pass); NA-08 Read Vogel's table directly; inputs refuted.
NA10-14 NA-10 Re_whale = ~3 × 10⁸ dimensionless Re_whale ~3 × 10⁸ dimensionless large whale, 10 m/s; check: vL/ν = 10 × 30 / 10⁻⁶ = 3 × 10⁸ MODELED Vogel (as above); independently recomputed in-chapter As above.
NA10-15 NA-10 Re span = ~10¹³ (≈13 orders), not ~10¹⁰ dimensionless Re span ~10¹³ (≈13 orders), not ~10¹⁰ dimensionless bacterium → whale MODELED Computed in-chapter from the two rows above Show a sourced span of ~10¹⁰; the ~10¹⁰ figure is corrected here.
NA10-16 NA-10 τ_coast = 2.2 × 10⁻⁷ s τ_coast 2.2 × 10⁻⁷ s 2ρa²/(9µ); a = 1 µm, ρ = 10³ kg/m³, µ = 10⁻³ Pa·s MODELED Computed in-chapter (Stokes drag) Arithmetic error; inputs refuted.
NA10-17 NA-10 d_coast = 6.7 × 10⁻¹² (0.067 Å ≈ 1/16 of 2a₀) m d_coast 6.7 × 10⁻¹² (0.067 Å ≈ 1/16 of 2a₀) m 1 µm sphere at 30 µm/s, propulsion off MODELED Computed in-chapter; order-of-magnitude consistent with Purcell 1977 Read Purcell 1977 p.4 and compare; a bacterium observed to coast a measurable distance.
NA10-18 NA-10 Scallop theorem = reciprocal stroke → zero net displacement Scallop theorem reciprocal stroke → zero net displacement low Re, incompressible AND Newtonian OBSERVED-REPLICATED (as a theorem + its premises) Purcell 1977, Am J Phys 45(1):3–11, DOI 10.1119/1.10903 A Newtonian, incompressible, low-Re reciprocal swimmer that translates.
NA10-19 NA-10 Scallop theorem premise break = reciprocal swimming achieved at Re = 1.4 × 10⁻⁴ – 3 × 10⁻³ dimensionless Scallop theorem premise break reciprocal swimming achieved at Re = 1.4 × 10⁻⁴ – 3 × 10⁻³ dimensionless micro-scallop in shear-thickening / shear-thinning non-Newtonian fluids; Newtonian glycerol control OBSERVED-REPLICATED Qiu et al. 2014, Nat Commun 5:5119, DOI 10.1038/ncomms6119 Failure to replicate in a non-Newtonian fluid.
NA10-20 NA-10 St = 0.2–0.4 dimensionless St 0.2–0.4 dimensionless cruising flight/swimming OBSERVED-REPLICATED Taylor, Nudds & Thomas 2003, Nature 425:707–711 Cruise St outside range across taxa.
NA10-21 NA-10 b_prokaryote = 1.7 active / 2.0 inactive dimensionless b_prokaryote 1.7 active / 2.0 inactive dimensionless metabolic rate vs body mass; n = 44 / 121 OBSERVED-REPLICATED DeLong et al. 2010, PNAS 107(29):12941–5, DOI 10.1073/pnas.1007783107 Refit with independent data; CI covering 0.75.
NA10-22 NA-10 b_protist = 1.0 active / 1.1 inactive dimensionless b_protist 1.0 active / 1.1 inactive dimensionless n = 51 / 52 OBSERVED-REPLICATED DeLong et al. 2010 As above.
NA10-23 NA-10 b_metazoan = 0.76 active / 0.79 inactive dimensionless b_metazoan 0.76 active / 0.79 inactive dimensionless n = 71 / 15 OBSERVED-REPLICATED DeLong et al. 2010 As above.
NA10-24 NA-10 Kleiber universality = refuted as universal Kleiber universality refuted as universal 3/4 does not apply across prokaryote/protist/metazoan OBSERVED-REPLICATED DeLong et al. 2010 (their explicit conclusion) A dataset in which one exponent fits all three groups.
NA10-25 NA-10 Metabolic curvature = convex on log-log; quadratic in log-mass required; not a pure power law Metabolic curvature convex on log-log; quadratic in log-mass required; not a pure power law mammals, temperature-corrected OBSERVED-CONTESTED Kolokotrones et al. 2010, Nature 464:753–6, DOI 10.1038/nature08920; contested by MacKay 2011, J Theor Biol 280(1):194–196; replied to by Deeds, Savage & Fontana 2011, J Theor Biol 280(1):197–198 — the exchange is live on both sides Quadratic coefficient CI covering zero on independent data.
NA10-26 NA-10 Exponent-by-subset = small-dominated → ~2/3; large-dominated → ~3/4 dimensionless Exponent-by-subset small-dominated → ~2/3; large-dominated → ~3/4 dimensionless mammals; artefact of fitting a line to a curve OBSERVED-CONTESTED (with the row above) Kolokotrones et al. 2010 Both subsets return the same slope.
NA10-27 NA-10 P/m E. coli = ~10³ (order-of-magnitude; wet-mass basis — see falsifier) W/kg P/m E. coli ~10³ (order-of-magnitude; wet-mass basis — see falsifier) W/kg E. coli strain C-3000, glucose minimal medium; a conversion, not a W/kg measurement MODELED Computed from BNID 109687 — an O₂ uptake rate, 30 mmol O₂/gDW/h — via the enthalpy of O₂ consumption (~478 kJ/mol O₂) ÷ a cell mass; chain via NA-08 Recomputed: 30 mmol/gDW/h × 478 kJ/mol ÷ 3600 s = ~4 × 10³ W/kg dry ≈ ~1.2 × 10³ W/kg wet at dry/wet ≈ 0.3 — the stated ~10³ closes on a wet basis only. NA-08's mass basis is NOT-CONFIRMED in this pass. Also: an independent measurement >10× off.
NA10-28 NA-10 L⊙/M⊙ = 1.9 × 10⁻⁴ W/kg L⊙/M⊙ 1.9 × 10⁻⁴ W/kg Sun; 3.828 × 10²⁶ W ÷ 1.988 × 10³⁰ kg MODELED Computed in-chapter from IAU 2015 nominal L⊙ and (GM)⊙/G (CODATA 2022) Arithmetic error.
NA10-29 NA-10 P/m ratio = ~5 × 10⁶ (bacterium : Sun) dimensionless P/m ratio ~5 × 10⁶ (bacterium : Sun) dimensionless specific power; MODELED ÷ MODELED — both endpoints are conversions, neither is a W/kg observation MODELED Computed in-chapter from the two rows above Recomputation; ~2 × 10⁷ if the E. coli row is dry-basis — the ~10⁶ order survives either way.
NA10-30 NA-10 R⊙ = 6.957 × 10⁸ m R⊙ 6.957 × 10⁸ m IAU nominal solar radius (exact by adoption, not a CBE) OBSERVED-REPLICATED (adopted constant) IAU 2015 Res. B3; Prša et al. 2016, AJ 152:41 IAU re-adoption.
NA10-31 NA-10 L⊙ = 3.828 × 10²⁶ W L⊙ 3.828 × 10²⁶ W IAU nominal solar luminosity OBSERVED-REPLICATED (adopted constant) IAU 2015 Res. B3; Prša et al. 2016 As above.
NA10-32 NA-10 S⊙ = 1361 W/m² S⊙ 1361 W/m² IAU nominal total solar irradiance OBSERVED-REPLICATED (adopted constant) IAU 2015 Res. B3; Prša et al. 2016 As above.
NA10-33 NA-10 T_eff,⊙ = 5772 K T_eff,⊙ 5772 K IAU nominal solar effective temperature OBSERVED-REPLICATED (adopted constant) IAU 2015 Res. B3; Prša et al. 2016 As above.
NA10-34 NA-10 (GM)⊙ = 1.3271244 × 10²⁰ m³/s² (GM)⊙ 1.3271244 × 10²⁰ m³/s² IAU nominal solar mass parameter OBSERVED-REPLICATED (adopted constant) IAU 2015 Res. B3; Prša et al. 2016 As above.
NA10-35 NA-10 R_eE = 6.3781 × 10⁶ m R_eE 6.3781 × 10⁶ m IAU nominal terrestrial equatorial radius (polar: 6.3568 × 10⁶) OBSERVED-REPLICATED (adopted constant) IAU 2015 Res. B3; Prša et al. 2016 As above.
NA10-36 NA-10 AU = 1.495 978 707 × 10¹¹ m AU 1.495 978 707 × 10¹¹ m astronomical unit, exact by IAU definition OBSERVED-REPLICATED (defined) IAU 2012 Res. B2 (definition; primary not read in this pass) Fetch IAU 2012 Res. B2.
NA10-37 NA-10 D25_MW = 26.8 ± 1.1 (≈8.3 × 10²⁰ m) kpc D25_MW 26.8 ± 1.1 (≈8.3 × 10²⁰ m) kpc Milky Way isophotal diameter OBSERVED-CONTESTED (secondary summary; primary not read in this pass) attributed to Goodwin et al. 1997/98, The Observatory 118:201–208 Read the primary; an independent estimate outside 25.7–27.9 kpc.
NA10-38 NA-10 R₀ = 8178 ± 13(stat) ± 22(sys) (≈ 8.178 kpc; 0.16% stat, 0.27% total) pc R₀ 8178 ± 13(stat) ± 22(sys) (≈ 8.178 kpc; 0.16% stat, 0.27% total) pc Sun → Galactic Centre; direct geometric measurement — S2's orbit via VLTI/GRAVITY interferometry + 27 yr astrometry/spectroscopy OBSERVED-REPLICATED (current standard reference) GRAVITY Collab. (Abuter et al.) 2019, A&A 625:L10, DOI 10.1051/0004-6361/201935656 (primary read in this pass) An independent geometric measurement outside ~8.13–8.23 kpc.
NA10-39 NA-10 R₀ — the 2016 standoff (historical; resolved) = 8.32 ± 0.07(stat) ± 0.14(sys) vs 7.86 ± 0.14(stat) ± 0.04(sys) — ~2.2σ apart on errors combined in quadrature; intervals do not overlap kpc R₀ — the 2016 standoff (historical; resolved) 8.32 ± 0.07(stat) ± 0.14(sys) vs 7.86 ± 0.14(stat) ± 0.04(sys) — ~2.2σ apart on errors combined in quadrature; intervals do not overlap kpc Sgr A* stellar orbits: Gillessen = multistar fit; Boehle = combined S2+S38 fit. Boehle's S2-only fit gives 8.02 ± 0.36 ± 0.04, 'completely consistent' with GRAVITY — the offset is the combined fit, not the data OBSERVED-CONTESTED → resolved by method Gillessen et al. 2017, ApJ 837:30 (arXiv:1611.09144) vs Boehle et al. 2016, ApJ 830:17; both values and the S2-only diagnosis quoted in GRAVITY Collab. 2019 Superseded as a live value by the row above; retained as the worked averaging-trap case. Refuted if the S2-only/combined-fit diagnosis is overturned.
NA10-40 NA-10 Ladder span = ~10³⁶ dimensionless Ladder span ~10³⁶ dimensionless r_p → D25_MW MODELED Computed in-chapter Arithmetic error.
NA10-41 NA-10 'Information density' gradient — no value carried 'Information density' gradient across rungs 1–16 NOT-MEASURED no measurand located State the measurand + units; measure two non-adjacent rungs.
NA10-42 NA-10 'Degree of internal model' gradient — no value carried 'Degree of internal model' gradient across rungs 1–16 NOT-MEASURED no measurand located As above. Until then it is rhetoric.
NA10-43 NA-10 Trophic transfer efficiency = ~10% nominal; measured spread wide % Trophic transfer efficiency ~10% nominal; measured spread wide % ecosystem energy flux NOT-SOURCED in this pass not confirmed here Fetch a primary survey (e.g. Lindeman and successors).
NA10-44 NA-10 O₂ tissue penetration = ~100–200 µm O₂ tissue penetration ~100–200 µm why capillary spacing is what it is NOT-SOURCED in this pass standard physiology, primary not located Fetch a primary; Krogh-cylinder measurement.
NA10-45 NA-10 Womersley α (aorta) = ~20 dimensionless Womersley α (aorta) ~20 dimensionless human aorta, rest NOT-SOURCED in this pass standard cardiovascular reference Fetch a primary.
NA10-46 NA-10 MTE list = 8 transitions MTE list 8 transitions Maynard Smith & Szathmáry OBSERVED-REPLICATED (as a published framework) Maynard Smith & Szathmáry 1995, OUP, ISBN 978-0-19-850294-4; Szathmáry & Maynard Smith 1995, Nature 374(6519):227–232
NA10-47 NA-10 MTE 'lacks theoretical unity' objection — no value carried MTE 'lacks theoretical unity' objection criticism of the list, esp. transition 8 NOT-SOURCED in this pass — recorded from secondary summary only West et al. 2015, PNAS 112(33):10112–9 argues toward 'a more unified description' but its abstract does not propose excluding transitions Locate the primary making the theoretical-unity objection; do not attribute it on this chapter's authority.

CN-01 — Rocks: the mineral substrate

Source: cookbook/recipes-natura/CN-01-rocks.md · 43 rows

row_id chapter claim symbol value units scope class source falsifier
CN01-01 CN-01 n_IMA = 6,200 valid species n_IMA 6,200 valid species IMA-CNMNC list, January 2026 — a dated snapshot, not a constant OBSERVED-REPLICATED IMA-CNMNC, The New IMA List of Minerals (2026-01) Consult current CNMNC master list; a different count. This row is built to go stale — see r_IMA.
CN01-02 CN-01 r_IMA = ~78–105 (mean ~91 over 2024-09 → 2026-01) valid species added per year r_IMA ~78–105 (mean ~91 over 2024-09 → 2026-01) valid species added per year IMA-CNMNC list-to-list deltas; the rate is not steady — the most recent interval is the slowest OBSERVED-REPLICATED Computed in-chapter from successive IMA Master Lists: 6079 (2024-09) → 6126 (2025-03) → 6161 (2025-07) → 6200 (2026-01) Recount from successive CNMNC master lists; a rate outside the band.
CN01-03 CN-01 d_Si–O = ~1.62 (range 1.55–1.72) Å d_Si–O ~1.62 (range 1.55–1.72) Å Si–O, tetrahedral coordination, silicate structures OBSERVED-REPLICATED (primary not read this pass) Si–O bond-length literature (Brown & Gibbs, Am Mineral; Cruickshank's rule ~1.63 Å) Refine a silicate structure; mean Si–O outside 1.55–1.72.
CN01-04 CN-01 θ_O–Si–O = 109.47 degrees θ_O–Si–O 109.47 degrees ideal regular tetrahedron; real angles distort MODELED Geometry; Hückel-energy minimum at ideal angle (Am Mineral 57:1614) A regular-tetrahedron silicate at a different angle.
CN01-05 CN-01 Si:O series = 0.25 → 0.286 → 0.333 → 0.364 → 0.40 → 0.50 dimensionless Si:O series 0.25 → 0.286 → 0.333 → 0.364 → 0.40 → 0.50 dimensionless neso→soro→cyclo/ino₁→ino₂→phyllo→tecto MODELED Computed in-chapter from stoichiometry Arithmetic error.
CN01-06 CN-01 bridging O = 0 → 1 → 2 → 2.5 → 3 → 4 per tetrahedron bridging O 0 → 1 → 2 → 2.5 → 3 → 4 per tetrahedron same series MODELED Computed in-chapter Arithmetic error.
CN01-07 CN-01 N_sg = 230 (32 point groups, 14 Bravais lattices, 7 systems) space groups N_sg 230 (32 point groups, 14 Bravais lattices, 7 systems) space groups periodic order in 3-D Euclidean space — a closed formal result about the space, not a survey of rocks MODELED (closed formal result; deliberately not an empirical class — no mineral could refute it) Fedorov (1891); Schoenflies (1891); list corrected to 230 by 1892 Formal, not empirical: re-derive the enumeration — exhibit a 231st periodic group, or a duplicate among the 230.
CN01-08 CN-01 quasicrystal = 5-fold symmetry, no translational periodicity quasicrystal 5-fold symmetry, no translational periodicity outside all 230; synthetic 1984, natural 2009, named 2011, meteoritic 2012 — three papers, three scopes OBSERVED-REPLICATED Shechtman, Blech, Gratias & Cahn (1984), Phys Rev Lett 53:1951–1953 (synthetic); Bindi, Steinhardt, Yao & Lu (2009), Science 324:1306–1309 (natural); Bindi et al. (2011), Am Mineral 96:928–931 (the name icosahedrite + Al₆₃Cu₂₄Fe₁₃); Bindi et al. (2012), PNAS 109:1396–1401 (Khatyrka meteorite origin) Show icosahedrite is periodic or a twinning artefact.
CN01-09 CN-01 Al₂SiO₅ triple pt = both carried: ~501 °C, ~3.8 kbar (1971) and 504 ± 20 °C, 3.75 ± 0.25 kbar (1993) °C, kbar Al₂SiO₅ triple pt both carried: ~501 °C, ~3.8 kbar (1971) and 504 ± 20 °C, 3.75 ± 0.25 kbar (1993) °C, kbar kyanite–andalusite–sillimanite invariant point; scoped to the Holdaway line of work — the wider aluminosilicate triple-point literature is not carried in this row OBSERVED-CONTESTED Holdaway (1971), Am J Sci 271:97–131; reevaluated Holdaway & Mukhopadhyay (1993), Am Mineral 78:298–315 Re-run the brackets; coordinates outside 504 ± 20 °C, 3.75 ± 0.25 kbar. Do not average the two — the 1971 point falls inside the 1993 brackets, which is agreement, not licence to merge.
CN01-10 CN-01 H_qtz = 12.1 ± 1.1 (micro) / 14.5 ± 0.4 (DSI) GPa H_qtz 12.1 ± 1.1 (micro) / 14.5 ± 0.4 (DSI) GPa quartz (0001) OBSERVED-REPLICATED Whitney, Broz & Cook (2007), Am Mineral 92:281–288, Table 1 Independent indentation on (0001) outside range.
CN01-11 CN-01 E*_qtz = 117 ± 3 GPa E*_qtz 117 ± 3 GPa quartz (0001), indentation modulus OBSERVED-REPLICATED Whitney et al. (2007), Table 1 As above.
CN01-12 CN-01 K_IC,qtz = 1.5 ± 0.3 MPa·m^½ K_IC,qtz 1.5 ± 0.3 MPa·m^½ quartz (0001) OBSERVED-REPLICATED Whitney et al. (2007) As above.
CN01-13 CN-01 H_orth = 6.9 ± 0.7 (micro) / 9.1 ± 0.6 (DSI) GPa H_orth 6.9 ± 0.7 (micro) / 9.1 ± 0.6 (DSI) GPa orthoclase (101), Mohs 6 OBSERVED-REPLICATED Whitney et al. (2007), Table 1 As above.
CN01-14 CN-01 H_per = 5.3 ± 1.0 (micro) / 9.4 ± 1.4 (DSI) GPa H_per 5.3 ± 1.0 (micro) / 9.4 ± 1.4 (DSI) GPa periclase MgO, Mohs 6–6.5 — polycrystalline synthetic reference material, not a single crystal. Softer than orthoclase by microhardness only; the DSI column preserves Mohs order for the pair (9.4 ± 1.4 vs 9.1 ± 0.6, overlapping) OBSERVED-REPLICATED (the values) / scope-mismatched for any rank-inversion claim — Mohs is a single-crystal scratch test Whitney et al. (2007), Table 1 Re-indent single-crystal MgO; the microhardness inversion disappears.
CN01-15 CN-01 K_IC,per = 3.9 ± 0.8 MPa·m^½ K_IC,per 3.9 ± 0.8 MPa·m^½ periclase — toughest of that set, and among the softest; polycrystalline synthetic OBSERVED-REPLICATED Whitney et al. (2007) As above.
CN01-16 CN-01 H_ky = Mohs 5–5.5 on (001) vs Mohs 7 on (100)/(010); DSI 14.8 ± 1.4 on (001); E* 186 ± 8 → 253 ± 19 GPa H_ky Mohs 5–5.5 on (001) vs Mohs 7 on (100)/(010); DSI 14.8 ± 1.4 on (001); E* 186 ± 8 → 253 ± 19 GPa kyanite — one crystal, two Mohs numbers, face-dependent; and (001), the table's lowest Mohs entry, is harder by DSI than orthoclase (9.1) and periclase (9.4) — the clean rank inversion: single-crystal, no reference-sample caveat OBSERVED-REPLICATED Whitney et al. (2007), Table 1 Indent both faces and find isotropy; or find (001) softer than orthoclase by DSI.
CN01-17 CN-01 Mohs linearity = none Mohs linearity none Mohs vs indentation H, K_IC, E* across the scale OBSERVED-REPLICATED Broz, Cook & Whitney (2006), Am Mineral 91:135–142 Exhibit a monotone linear map from Mohs to any measured property.
CN01-18 CN-01 ρ (PREM) = 1.02 / 2.60 / 3.38 / 5.57 / 9.90 / 13.09 g/cm³ ρ (PREM) 1.02 / 2.60 / 3.38 / 5.57 / 9.90 / 13.09 g/cm³ ocean / upper crust / sub-Moho mantle / base of mantle / outer-core top / centre MODELED (posterior) Dziewonski & Anderson (1981), Phys Earth Planet Inter 25:297–356; tabulated PREM_1s (IRIS/SAGE EMC) Refit with new data; densities move.
CN01-19 CN-01 S-wave shadow = no S arrival through the outer core S-wave shadow no S arrival through the outer core the observation — the outer core has no shear strength. This is the datum the model is conditioned on, and it is not PREM OBSERVED-REPLICATED Oldham (1906), Q J Geol Soc 62:456–475; Gutenberg (1913), Phys Z 14:1217–1218; Jeffreys (1926), MNRAS Geophys Suppl 1:371 (the core is liquid — his decisive argument was a tidal rigidity budget, not the shadow itself) Observe an S-wave traversing the outer core.
CN01-20 CN-01 Vs outer core = 0 (imposed) km/s Vs outer core 0 (imposed) km/s PREM, 2891–5149.5 km — a parameterisation constraint, not a fit result: PREM defines the outer core as fluid and sets μ = 0 a priori MODELED (model input — the one interior number that is not output; do not quote it as '0.00000') PREM tabulated Not falsifiable as model output — it is an assumption. Falsify the assumption via the row above.
CN01-21 CN-01 Vs inner core = 3.50431 (ICB) → 3.66780 (centre) km/s Vs inner core 3.50431 (ICB) → 3.66780 (centre) km/s PREM inner core — transmits shear; fitted, unlike the outer-core zero MODELED (posterior) PREM tabulated Show the inner core does not transmit shear.
CN01-22 CN-01 Vp/Vs = 1.813 (upper crust) / 1.825 (sub-Moho) / 1.888 (base mantle) / ∞ (outer core) / 3.147 (ICB) dimensionless Vp/Vs 1.813 (upper crust) / 1.825 (sub-Moho) / 1.888 (base mantle) / ∞ (outer core) / 3.147 (ICB) dimensionless PREM MODELED Computed in-chapter from PREM tabulated Vpv/Vsv Arithmetic error.
CN01-23 CN-01 ν = 0.281 / 0.285 / 0.305 / 0.5 / 0.444 dimensionless ν 0.281 / 0.285 / 0.305 / 0.5 / 0.444 dimensionless Poisson's ratio, same horizons; ν = (Vp²−2Vs²)/(2(Vp²−Vs²)) MODELED Computed in-chapter from PREM Arithmetic error; interpretation of ν≈0.44 not claimed.
CN01-24 CN-01 t½ ²³⁸U = (4.4683 ± 0.0024) × 10⁹ yr t½ ²³⁸U (4.4683 ± 0.0024) × 10⁹ yr OBSERVED-REPLICATED Jaffey et al. (1971), Phys Rev C 4:1889–1906 Re-measure specific activity; outside stated uncertainty.
CN01-25 CN-01 t½ ²³⁵U = (7.0381 ± 0.0048) × 10⁸ yr t½ ²³⁵U (7.0381 ± 0.0048) × 10⁸ yr ratio to ²³⁸U = 6.35× — the concordia's leverage OBSERVED-REPLICATED Jaffey et al. (1971) As above.
CN01-26 CN-01 t½ ⁴⁰K = (1.2522 ± 0.0027) × 10⁹ yr t½ ⁴⁰K (1.2522 ± 0.0027) × 10⁹ yr ⁴⁰K half-life (coverage factor not read this pass — fetch the primary) OBSERVED-REPLICATED DDEP 2025 evaluation; Mougeot et al., Metrologia 63(1) (2026), doi:10.1088/1681-7575/ae3733 Supersedes 1.248 ± 0.003 × 10⁹ — re-evaluate.
CN01-27 CN-01 ⁴⁰K branches = β⁻→⁴⁰Ca 89.56(7)%; EC→⁴⁰Ar total ≈10.44% = EC* 10.34(7)% (excited state, 1460.8 keV γ) + EC₀ 0.098% (ground state, no γ). 89.56 + 10.44 = 100.00 % ⁴⁰K branches β⁻→⁴⁰Ca 89.56(7)%; EC→⁴⁰Ar total ≈10.44% = EC* 10.34(7)% (excited state, 1460.8 keV γ) + EC₀ 0.098% (ground state, no γ). 89.56 + 10.44 = 100.00 % K–Ar uses EC₀ + EC*, i.e. all radiogenic ⁴⁰Ar — not EC* alone. Quoting 10.34% as 'the EC branch' drops a channel and loses 0.10% of the decay OBSERVED-REPLICATED DDEP 2025 evaluation (Mougeot et al. 2026); EC₀ first observed by the KDK collaboration, Phys Rev Lett 131:052503 (2023): I(EC₀) = 0.098% ± 0.023 (stat) ± 0.010 (sys) Branches that fail to sum to 100%; or an EC₀ re-measurement outside the KDK uncertainty.
CN01-28 CN-01 t½ ⁸⁷Rb = 49.61 ± 0.16 Ga t½ ⁸⁷Rb 49.61 ± 0.16 Ga λ₈₇ = (1.3972 ± 0.0045) × 10⁻¹¹ a⁻¹ OBSERVED-REPLICATED Villa, De Bièvre, Holden & Renne (2015), GCA 164:382–385 Independent determination outside stated uncertainty.
CN01-29 CN-01 t½ ¹⁴⁷Sm = 106.25 ± 0.38 Ga t½ ¹⁴⁷Sm 106.25 ± 0.38 Ga λ₁₄₇ = (6.524 ± 0.024) × 10⁻¹² a⁻¹, k = 2 OBSERVED-REPLICATED Villa et al. (2020), GCA (IUPAC-IUGS recommendation) As above.
CN01-30 CN-01 t½ ¹⁴⁶Sm = 92.0 ± 2.6 (k = 1) — the current determination Ma t½ ¹⁴⁶Sm 92.0 ± 2.6 (k = 1) — the current determination Ma direct re-determination by mass spectrometry + α-counting; agrees with neither legacy value OBSERVED-REPLICATED (one dedicated determination; not yet independently repeated) Chiera, Sprung, Amelin, Dressler, Schumann & Talip (2024), Sci Rep, doi:10.1038/s41598-024-64104-6 Independent re-determination outside 92.0 ± 2.6.
CN01-31 CN-01 t½ ¹⁴⁶Sm (legacy) = ~68 (retracted) or ~103 Ma t½ ¹⁴⁶Sm (legacy) ~68 (retracted) or ~103 Ma SUPERSEDED FRAMING — do not 'compute both.' Villa et al. (2020) declined to recommend either 'pending dedicated re-investigations'; that re-investigation was published in 2024. The ~68 Ma value was retracted by its authors (Kinoshita et al.) SUPERSEDED (framing superseded) Villa et al. (2020), GCA (IUPAC-IUGS); retraction + history recorded in Chiera et al. (2024) This row's falsifier already fired. Kept as the receipt for why 'carry both' no longer applies.
CN01-32 CN-01 t_CAI = 4567.30 ± 0.16 Ma t_CAI 4567.30 ± 0.16 Ma oldest solar-system solids; U-corrected Pb-Pb OBSERVED-REPLICATED Connelly et al. (2012), Science 338:651–655 Independent Pb-Pb outside uncertainty.
CN01-33 CN-01 t_zircon = 4404 ± 8 Ma t_zircon 4404 ± 8 Ma Jack Hills detrital zircon; δ¹⁸O 7.4→5.0‰ OBSERVED-REPLICATED Wilde, Valley, Peck & Graham (2001), Nature 409:175–178 An older confirmed terrestrial grain; or refute the δ¹⁸O inference.
CN01-34 CN-01 f_bio,2008 = ~2/3 of 4,300 species f_bio,2008 ~2/3 of 4,300 species SUPERSEDED — DO NOT CITE SUPERSEDED (withdrawn) Hazen et al. (2008), Am Mineral 93:1693–1720 Superseded by the authors themselves — see next row.
CN01-35 CN-01 f_bio,excl = ~34 % of 5,659 f_bio,excl ~34 % of 5,659 form exclusively via biological processes MODELED — single-team assignment of species to the authors' own 57 proposed paragenetic modes; no independent replication Hazen & Morrison (2022), Am Mineral 107:1262–1287, doi:10.2138/am-2022-8099 Standing falsifier: nobody has independently re-audited the paragenetic-mode assignments. Do so.
CN01-36 CN-01 n_bio,infl = at least 2,707 of 5,659 (47.8%) species n_bio,infl at least 2,707 of 5,659 (47.8%) species form under biological influence (not exclusively) — the authors' explicit 'at least': a lower bound, not a point estimate MODELED (as above; unreplicated) Hazen & Morrison (2022) As above.
CN01-37 CN-01 n_bio,excl = >1,900 species n_bio,excl >1,900 species exclusively biological — a planetary biomarker; already stated as a bound MODELED (as above; unreplicated) Hazen & Morrison (2022) As above.
CN01-38 CN-01 n_water = at least 4,583 (81.0%) species n_water at least 4,583 (81.0%) species water–rock interaction — the authors' explicit 'at least'. Largest single factor, ahead of life — but this ranks two lower bounds; it is not a measured margin MODELED (as above; unreplicated) Hazen & Morrison (2022) As above.
CN01-39 CN-01 n_weather = 1,998 species n_weather 1,998 species near-surface weathering/oxidation — commonest paragenetic mode MODELED (as above; unreplicated) Hazen & Morrison (2022) As above.
CN01-40 CN-01 n_modes = 57 (3,349 species = 59.2% from one mode only) paragenetic modes n_modes 57 (3,349 species = 59.2% from one mode only) paragenetic modes across 5,659 species; 'our proposed' scheme, the authors adding 'we welcome additions and corrections' MODELED — the classification scheme itself; unreplicated Hazen & Morrison (2022) As above.
CN01-41 CN-01 stage counts = ~12 → ~250 → ~1,500 species stage counts ~12 → ~250 → ~1,500 species ur-minerals → meteorite/lunar → pre-biological MODELED (author's institutional summary; primary not read — the 2008 PDF returned HTTP 404 this pass) Hazen et al. (2008) as summarised at hazen.carnegiescience.edu Read Am Mineral 93:1693–1720 directly and confirm.
CN01-42 CN-01 K_qtz, G_qtz, ρ_qtz — no value carried K_qtz, G_qtz, ρ_qtz GPa, g/cm³ single-crystal adiabatic bulk/shear moduli, quartz & olivine NOT-MEASURED (not sourced this pass) Fetch Bass (1995), AGU Ref. Shelf 2:45–63.
CN01-43 CN-01 d_borehole = 12,262 m d_borehole 12,262 m Kola SG-3 — deepest direct sample of the Earth by true vertical depth (longer directional wells exist by measured length); ~0.19% of the way to the centre OBSERVED-REPLICATED Popov, Pevzner, Pimenov & Romushkevich (1999), Tectonophysics 306(3–4):345–366 A deeper true-vertical borehole; or a re-survey of SG-3 outside 12,262 m.

CN-02 — Water: the anomalous solvent everything else assumes

Source: cookbook/recipes-natura/CN-02-water.md · 45 rows

row_id chapter claim symbol value units scope class source falsifier
CN02-01 CN-02 T_ρmax = 3.983 °C T_ρmax 3.983 °C liquid H₂O, 1 atm OBSERVED-REPLICATED Wikipedia Properties of water (compiling standard reference data) Densimetry finding max outside 3.9–4.1 °C at 1 atm.
CN02-02 CN-02 ρ(3.983 °C) = 0.99997495(84) g/mL ρ(3.983 °C) 0.99997495(84) g/mL as above OBSERVED-REPLICATED as above Value outside stated uncertainty.
CN02-03 CN-02 ρ(0 °C) = 0.99984283(84) g/mL ρ(0 °C) 0.99984283(84) g/mL liquid, 1 atm OBSERVED-REPLICATED as above As above.
CN02-04 CN-02 ρ(25 °C) = 0.99704702(83) g/mL ρ(25 °C) 0.99704702(83) g/mL liquid, 1 atm OBSERVED-REPLICATED as above As above.
CN02-05 CN-02 Δρ/ρ (0→3.983 °C) = 1.32 × 10⁻⁴ (132 ppm) dimensionless Δρ/ρ (0→3.983 °C) 1.32 × 10⁻⁴ (132 ppm) dimensionless the density anomaly's magnitude MODELED Computed in-chapter from the two rows above Arithmetic error.
CN02-06 CN-02 ρ_ice = 0.9167 g/mL ρ_ice 0.9167 g/mL ice Ih, 0 °C OBSERVED-REPLICATED Wikipedia Properties of water Structural/densimetric measurement outside ±0.001.
CN02-07 CN-02 ice density deficit = 8.32 % ice density deficit 8.32 % (1 − 0.9167/0.99984) MODELED Computed in-chapter Arithmetic error.
CN02-08 CN-02 freezing expansion = 9.07 % vol freezing expansion 9.07 % vol (0.99984/0.9167 − 1) — not the same as the row above MODELED Computed in-chapter Arithmetic error.
CN02-09 CN-02 k_ice = ~2.2 (~2.2–2.3; rises as T falls) W/(m·K) k_ice ~2.2 (~2.2–2.3; rises as T falls) W/(m·K) ice Ih, 0 °C, 1 atm — higher than liquid water OBSERVED-REPLICATED (secondary compilation) Wikipedia List of thermal conductivities (CRC-sourced row, ~273 K); closure: fetch a primary Measurement at 0 °C, 1 atm outside ~2.1–2.4.
CN02-10 CN-02 k_water = ~0.561 W/(m·K) k_water ~0.561 W/(m·K) liquid water, 0 °C, 1 atm — cf. ~0.607 at 25 °C; the 0 °C value is the one used in the lake argument, and the two must not be mixed OBSERVED-REPLICATED (secondary) as above (compilations print 0.6065 with no temperature stated; the T is supplied in-chapter) Measurement at 0 °C, 1 atm outside ~0.55–0.57.
CN02-11 CN-02 k_snow = ~0.074 (range ~0.05–0.25) W/(m·K) k_snow ~0.074 (range ~0.05–0.25) W/(m·K) seasonal snow, density-dependent OBSERVED-REPLICATED J Glaciology, 'The thermal conductivity of seasonal snow' Measurement outside range at stated density.
CN02-12 CN-02 cₚ = 4.181 (4.184 at 20 °C) J/(g·K) cₚ 4.181 (4.184 at 20 °C) J/(g·K) liquid water, 25 °C OBSERVED-REPLICATED Wikipedia Table of specific heat capacities (secondary compilation; cites Ashby et al., Young & Geller) Calorimetry outside ±1 %.
CN02-13 CN-02 cₚ ammonia = 4.700 — exceeds water J/(g·K) cₚ ammonia 4.700 — exceeds water J/(g·K) liquid NH₃, 25 °C, saturation pressure ~10 bar (1003 kPa; liquid at 25 °C only under pressure — normal bp −33.34 °C) OBSERVED-REPLICATED (secondary; T and P are not stated in the cited compilation — condition supplied in-chapter. Whether ammonia leads water across the whole liquid range is NOT-VERIFIED) as above Calorimetry at stated T and P showing ammonia < water.
CN02-14 CN-02 cₚ ethanol / methanol / mercury = 2.440 / 2.140 / 0.1395 J/(g·K) cₚ ethanol / methanol / mercury 2.440 / 2.140 / 0.1395 J/(g·K) 25 °C OBSERVED-REPLICATED (secondary) as above As above.
CN02-15 CN-02 molar cₚ: water / ethanol = 75.3 / 112.4 — ethanol wins J/(mol·K) molar cₚ: water / ethanol 75.3 / 112.4 — ethanol wins J/(mol·K) 25 °C MODELED Computed in-chapter (cₚ × M; M = 18.015 / 46.07) Arithmetic error.
CN02-16 CN-02 volumetric cₚ, water = 4.17 J/(cm³·K) volumetric cₚ, water 4.17 J/(cm³·K) 25 °C MODELED Computed in-chapter (4.181 × 0.99705) Arithmetic error.
CN02-17 CN-02 ρ_air = 1.204 kg/m³ ρ_air 1.204 kg/m³ dry air, 20 °C, 101325 Pa MODELED Computed in-chapter: P/(R_sp·T), R_sp = 287.05 J/(kg·K) Ideal-gas assumption refuted at these conditions.
CN02-18 CN-02 water : air, cₚ per volume = ~3,400× dimensionless water : air, cₚ per volume ~3,400× dimensionless 20–25 °C, 1 atm MODELED Computed in-chapter Arithmetic or input error.
CN02-19 CN-02 ΔH_vap = 2257 (40.65 kJ/mol) kJ/kg ΔH_vap 2257 (40.65 kJ/mol) kJ/kg 100 °C, normal boiling point OBSERVED-REPLICATED Wikipedia Properties of water; corroborated by steam-table sources in this pass Calorimetry outside ±1 %.
CN02-20 CN-02 ΔH_vap ethanol = 38.56 kJ/mol = 837 J/g — near-equal per mole kJ/mol ΔH_vap ethanol 38.56 kJ/mol = 837 J/g — near-equal per mole kJ/mol ethanol, normal bp OBSERVED-REPLICATED (tertiary compilation; primary not fetched) surfaced in this pass; falsifier/closure: fetch CRC or NIST Primary value outside ±2 %.
CN02-21 CN-02 λ_sweat = ~2430 J/g λ_sweat ~2430 J/g the theoretical value at skin temperature — not a measured physiological constant; Havenith measured λ_eff to approach it for evaporation from the skin OBSERVED-REPLICATED (as the value λ_eff approaches at the skin) Havenith et al. 2013, J Appl Physiol 114(6):778–785 A measured λ_eff for skin evaporation outside 2400–2450.
CN02-22 CN-02 λ_eff reduction = up to ~80 — site-dependent: 11 / 28 / >62 / →80 % λ_eff reduction up to ~80 — site-dependent: 11 / 28 / >62 / →80 % by evaporation distance from skin: underwear + permeable coverall 11; evaporation from the underwear under a permeable outer 28; from the outermost layer only, no base layer >62, rising toward 80 with more layers between skin and wet outerwear OBSERVED-REPLICATED Havenith et al. 2013 (thermal manikin) A manikin study finding λ_eff reduction outside 11–80 % across these evaporation sites.
CN02-23 CN-02 sweat to shed 100 W / 1000 W = 148 g/h / 1.48 kg/h sweat to shed 100 W / 1000 W 148 g/h / 1.48 kg/h pure evaporative, λ = 2430 J/g MODELED Computed in-chapter Arithmetic error.
CN02-24 CN-02 human sweat rate = ~0.5–2.0 (elite in heat >2.5) L/h human sweat rate ~0.5–2.0 (elite in heat >2.5) L/h exercising humans OBSERVED-REPLICATED (secondary summaries; primary not fetched) Sawka et al. 2007, ACSM Position Stand, Med Sci Sports Exerc; closure: fetch the primary A measured band outside ~0.5–2.0 L/h.
CN02-25 CN-02 γ = 71.97 mN/m γ 71.97 mN/m water–vapour, 25 °C OBSERVED-REPLICATED IAPWS R1-76(2014), recomputed in-chapter from its own correlation → 71.972. The widely-copied 71.99 is Wikipedia Properties of water — a different source Tensiometry outside IAPWS's ±0.5 % below 100 °C.
CN02-26 CN-02 κ⁻¹ = 2.71 mm κ⁻¹ 2.71 mm capillary length, √(γ/ρg), 25 °C MODELED Computed in-chapter from γ, ρ(25 °C), g = 9.80665 Arithmetic error.
CN02-27 CN-02 Bo (strider leg) = 3.4 × 10⁻⁴ dimensionless Bo (strider leg) 3.4 × 10⁻⁴ dimensionless ρgL²/γ, L = 50 µm MODELED Computed in-chapter — leg radius is an order-of-magnitude assumption, not sourced Source a real leg radius; recompute.
CN02-28 CN-02 strider propulsion = momentum via hemispherical vortices, not primarily capillary waves strider propulsion momentum via hemispherical vortices, not primarily capillary waves Gerridae, adults and infants OBSERVED-REPLICATED Hu, Chan & Bush 2003, Nature 424(6949):663–666 Flow visualisation showing wave-dominated momentum transfer.
CN02-29 CN-02 Jurin rise, r = 10 µm / 5 nm = 1.47 m / ~2.9 km m Jurin rise, r = 10 µm / 5 nm 1.47 m / ~2.9 km m h = 2γcosθ/(ρgr), θ = 0, 25 °C MODELED Computed in-chapter Arithmetic error.
CN02-30 CN-02 h_tree,max = 112.7 measured; 122–130 predicted m h_tree,max 112.7 measured; 122–130 predicted m Sequoia sempervirens; ceiling set by leaf water potential, not the meniscus OBSERVED-REPLICATED (measured) / MODELED (ceiling) Koch et al. 2004, Nature 428:851–854 A taller undamaged tree; or a mechanism refuting the water-potential limit.
CN02-31 CN-02 μ_gas = 1.8546 D μ_gas 1.8546 D H₂O, gas phase, equilibrium OBSERVED-REPLICATED (secondary compilation; primary not fetched) Wikipedia Properties of water — which states no uncertainty; closure: fetch Clough et al. 1973, J Chem Phys 59:2254, or the NIST/CRC dipole-moment table Primary measurement outside 1.8546 ± 0.001 D.
CN02-32 CN-02 μ_liquid = ~2.6–2.9 (ice Ih ~3.09 ± 0.04) D μ_liquid ~2.6–2.9 (ice Ih ~3.09 ± 0.04) D convention-dependent — no partitioning-free measurement exists OBSERVED-CONTESTED / MODELED reports surfaced in this pass span 2.6–2.9 ± 0.6 A partitioning-independent determination.
CN02-33 CN-02 ε_r = ≈78.4 dimensionless ε_r ≈78.4 dimensionless static dielectric constant, pure water, 25 °C OBSERVED-REPLICATED BNID 115815; formulation: IAPWS R8-97 (Fernández et al., doi 10.1063/1.555997) Value outside ±0.5 at 25 °C.
CN02-34 CN-02 Coulomb attenuation = ~78× dimensionless Coulomb attenuation ~78× dimensionless F ∝ 1/ε_r MODELED Computed in-chapter from ε_r Continuum-dielectric assumption refuted at ionic contact.
CN02-35 CN-02 ΔH_soln(NaCl) = +3.9 — endothermic kJ/mol ΔH_soln(NaCl) +3.9 — endothermic kJ/mol NaCl in excess water OBSERVED-REPLICATED (secondary/tertiary; primary not fetched) surfaced in this pass; closure: fetch CRC/NIST Calorimetry showing exothermic dissolution.
CN02-36 CN-02 NaCl Born–Haber terms = lattice ~+787; ΔH_hyd Na⁺ ~−406, Cl⁻ ~−363 → sum ≈ +18 vs +3.9 measured kJ/mol NaCl Born–Haber terms lattice ~+787; ΔH_hyd Na⁺ ~−406, Cl⁻ ~−363 → sum ≈ +18 vs +3.9 measured kJ/mol the ~14 kJ/mol gap is the decomposition's error bar MODELED as above A decomposition closing to the measured value.
CN02-37 CN-02 ΔH_sub(ice Ih) = 51.059 kJ/mol ΔH_sub(ice Ih) 51.059 kJ/mol ice Ih, 0 °C OBSERVED-REPLICATED (tertiary compilation) LSBU Water Structure and Science (Chaplin); primary in Geochim Cosmochim Acta — not fetched in this pass Fetch the primary; value outside ±0.1.
CN02-38 CN-02 H-bond energy = ≤25.5 (bound); ~23.3 (estimate) kJ/mol H-bond energy ≤25.5 (bound); ~23.3 (estimate) kJ/mol no standard definition exists OBSERVED-CONTESTED bound computed in-chapter (51.059/2); estimate: Chaplin, 'Water's Hydrogen Bond Strength', arXiv:0706.1355 An agreed operational definition separating the H-bond from dispersion.
CN02-39 CN-02 τ_HB,osc = 170 fs τ_HB,osc 170 fs underdamped H-bond oscillation period; OH of HOD in D₂O OBSERVED-REPLICATED Fecko et al. 2003, Science 301(5640):1698–1702 Femtosecond IR outside 150–200 fs.
CN02-40 CN-02 τ_HB,decay = 1.2 ps τ_HB,decay 1.2 ps decay of vibrational correlations (collective reorganisation) OBSERVED-REPLICATED Fecko et al. 2003 Femtosecond IR outside ~1–1.5 ps.
CN02-41 CN-02 L_crossover = ~1 nm L_crossover ~1 nm hydrophobic small→large regime crossover MODELED (theory + simulation) Huang & Chandler 2000, PNAS 97(15):8324–8327; Lum, Chandler & Weeks 1999, J Phys Chem B 103:4570–4577 A measurement placing the crossover an order of magnitude away.
CN02-42 CN-02 hydrophobic driver, < 1 nm = entropic — network intact, 'hydrogen bonds simply go around the solute' hydrophobic driver, < 1 nm entropic — network intact, 'hydrogen bonds simply go around the solute' small solutes MODELED Huang & Chandler 2000 Solvation entropy measured near zero for small apolar solutes.
CN02-43 CN-02 hydrophobic driver, > 1 nm = enthalpic — network depleted, surface partially dries hydrophobic driver, > 1 nm enthalpic — network depleted, surface partially dries extended apolar surfaces MODELED Huang & Chandler 2000; Lum et al. 1999 Measurement showing no density depletion at an extended apolar surface.
CN02-44 CN-02 θ_HOH = 104.48 degrees θ_HOH 104.48 degrees H–O–H bond angle OBSERVED-REPLICATED Wikipedia Properties of water Structural measurement outside ±0.1°.
CN02-45 CN-02 ε_r-of-a-drink claims — no value carried ε_r-of-a-drink claims any bulk property of ingested 'structured water' NOT-MEASURED not sourced in this pass — no such measurement located Produce one.

CN-03 — Air: the atmosphere as a working fluid

Source: cookbook/recipes-natura/CN-03-air.md · 80 rows

row_id chapter claim symbol value units scope class source falsifier
CN03-01 CN-03 f_N2 = 78.084 % by volume f_N2 78.084 % by volume dry air, sea level OBSERVED-REPLICATED NASA NSSDC Earth Fact Sheet (Colorado mirror) Independent composition measurement outside ±0.01%.
CN03-02 CN-03 f_O2 = 20.946 % by volume f_O2 20.946 % by volume dry air, sea level OBSERVED-REPLICATED as above As above.
CN03-03 CN-03 f_Ar = 9,340 (0.934%) ppm by volume f_Ar 9,340 (0.934%) ppm by volume dry air OBSERVED-REPLICATED as above As above.
CN03-04 CN-03 P_O2 = 212 hPa P_O2 212 hPa O₂ partial pressure at 1013.25 hPa MODELED Computed in-chapter: 0.20946 × 1013.25 Arithmetic.
CN03-05 CN-03 f_H2O = ~1 (highly variable) % by volume f_H2O ~1 (highly variable) % by volume near-surface, typical OBSERVED-REPLICATED as above ('Water is highly variable')
CN03-06 CN-03 [CO₂] = 431.44 ppm [CO₂] 431.44 ppm Mauna Loa monthly mean, June 2026 OBSERVED-REPLICATED NOAA GML Trends in CO₂, updated 05 Jul 2026 Re-read the record; a different published monthly mean for June 2026.
CN03-07 CN-03 [CO₂] prior yr = 429.61 ppm [CO₂] prior yr 429.61 ppm Mauna Loa monthly mean, June 2025 OBSERVED-REPLICATED NOAA GML, as above As above.
CN03-08 CN-03 Δ[CO₂]/yr = 1.83 ppm/yr Δ[CO₂]/yr 1.83 ppm/yr June 2025 → June 2026, single-site OBSERVED-REPLICATED NOAA GML, as above As above.
CN03-09 CN-03 [CO₂] 2026 peak = 432.2 ± 0.6 ppm [CO₂] 2026 peak 432.2 ± 0.6 ppm forecast monthly mean, May 2026 MODELED Met Office annual CO₂ forecast Compare against the realised May 2026 observation.
CN03-10 CN-03 [CO₂] NASA row = 350 ppm [CO₂] NASA row 350 ppm STALE — as printed on the fact sheet INADMISSIBLE as current NASA NSSDC Earth Fact Sheet (mirror) Already refuted by the NOAA row above.
CN03-11 CN-03 H = 8.43 km H 8.43 km RT/(Mg); T=288 K, M=0.028964 kg/mol, g=9.807 MODELED Computed in-chapter Arithmetic; or refute an input.
CN03-12 CN-03 H (published) = 8.5 km H (published) 8.5 km Earth scale height as listed OBSERVED-REPLICATED NASA NSSDC Earth Fact Sheet (mirror) Independent value outside 8–9 km.
CN03-13 CN-03 z(½ mass) = 5.84 km z(½ mass) 5.84 km H·ln2, isothermal MODELED Computed in-chapter Arithmetic; isothermal assumption.
CN03-14 CN-03 P/P₀ (Everest) = 0.350 P/P₀ (Everest) 0.350 z = 8.849 km, isothermal H = 8.43 km MODELED Computed in-chapter Compare to measured summit barometry.
CN03-15 CN-03 P/P₀ (100 km) = 7 × 10⁻⁶ P/P₀ (100 km) 7 × 10⁻⁶ model out of range — see fence MODELED (failing) Computed in-chapter Any real 100 km pressure measurement — it refutes this row, by design.
CN03-16 CN-03 M_atm = 5.27 × 10¹⁸ (vs ≈5.15 × 10¹⁸ accepted) kg M_atm 5.27 × 10¹⁸ (vs ≈5.15 × 10¹⁸ accepted) kg P₀A/g; gap = mean surface elevation MODELED Computed in-chapter; accepted value not primary-sourced in this pass Fetch a primary M_atm; check the 990 hPa reconciliation.
CN03-17 CN-03 ρ_air = 1.204 kg/m³ ρ_air 1.204 kg/m³ 20 °C, 101.325 kPa; PM/RT MODELED Computed in-chapter Arithmetic.
CN03-18 CN-03 ρ_air (surface) = 1.217 kg/m³ ρ_air (surface) 1.217 kg/m³ 288 K, 1014 mb OBSERVED-REPLICATED NASA NSSDC Earth Fact Sheet (mirror) Independent measurement >2% off.
CN03-19 CN-03 μ_air = 1.81 × 10⁻⁵ Pa·s μ_air 1.81 × 10⁻⁵ Pa·s 20 °C, 1 atm OBSERVED-REPLICATED (not primary-sourced in this pass) standard reference; cross-checks against Sutherland's formula → 1.813 × 10⁻⁵ Fetch NIST/CRC; a value outside 1.79–1.84 × 10⁻⁵ refutes.
CN03-20 CN-03 μ_water = 1.002 × 10⁻³ Pa·s μ_water 1.002 × 10⁻³ Pa·s 20 °C, 1 atm OBSERVED-REPLICATED (not primary-sourced in this pass) standard reference (IAPWS-class value) Fetch IAPWS; outside 0.99–1.01 × 10⁻³ refutes.
CN03-21 CN-03 ρ_water = 998.2 kg/m³ ρ_water 998.2 kg/m³ 20 °C OBSERVED-REPLICATED (not primary-sourced in this pass) standard reference Fetch a primary table.
CN03-22 CN-03 ν_air = 1.50 × 10⁻⁵ m²/s ν_air 1.50 × 10⁻⁵ m²/s 20 °C, 1 atm; μ/ρ MODELED Computed in-chapter from the two rows above: 1.81 × 10⁻⁵ / 1.204 = 1.503 × 10⁻⁵ Either input refuted.
CN03-23 CN-03 ν_water = 1.00 × 10⁻⁶ m²/s ν_water 1.00 × 10⁻⁶ m²/s 20 °C; μ/ρ MODELED Computed in-chapter; cross-checks vs. published 1.0038 mm²/s at 20.2 °C Either input refuted.
CN03-24 CN-03 ν_air/ν_water = 15.0 dimensionless ν_air/ν_water 15.0 dimensionless 20 °C MODELED Computed in-chapter Arithmetic.
CN03-25 CN-03 ρ_water/ρ_air = 829 dimensionless ρ_water/ρ_air 829 dimensionless 20 °C MODELED Computed in-chapter Arithmetic.
CN03-26 CN-03 μ_water/μ_air = 55 dimensionless μ_water/μ_air 55 dimensionless 20 °C — note the inversion vs ν MODELED Computed in-chapter (829/55 = 15 ✓) Arithmetic.
CN03-27 CN-03 Re insect = ~6 × 10² dimensionless Re insect ~6 × 10² dimensionless 3 mm, 3 m/s, air MODELED Computed in-chapter; inputs order-of-magnitude Inputs refuted.
CN03-28 CN-03 Re bat = ~7 × 10⁴ dimensionless Re bat ~7 × 10⁴ dimensionless 0.1 m chord, 10 m/s, air MODELED Computed in-chapter; inputs order-of-magnitude Inputs refuted.
CN03-29 CN-03 Re whale = ~1.5 × 10⁷ dimensionless Re whale ~1.5 × 10⁷ dimensionless 3 m chord, 5 m/s, water MODELED Computed in-chapter; inputs order-of-magnitude Inputs refuted.
CN03-30 CN-03 c_air = 343.2 m/s c_air 343.2 m/s 20 °C; √(γRT/M), γ=1.400 MODELED Computed in-chapter Measured c outside 342–344 m/s at 20 °C.
CN03-31 CN-03 c_air (0 °C) = 331.3 m/s c_air (0 °C) 331.3 m/s 0 °C, same formula MODELED Computed in-chapter As above.
CN03-32 CN-03 c ∝ √T = exponent ½ c ∝ √T exponent ½ ideal gas; independent of pressure MODELED Computed in-chapter from √(γRT/M) Demonstrate a pressure dependence of c at fixed T.
CN03-33 CN-03 c_water = ~1,482 m/s c_water ~1,482 m/s 20 °C OBSERVED-REPLICATED (not primary-sourced in this pass) standard reference Fetch a primary value.
CN03-34 CN-03 α ∝ f² = exponent 2 α ∝ f² exponent 2 classical (Stokes–Kirchhoff) term only MODELED classical acoustics Not the observed exponent below 10 kHz — see next rows.
CN03-35 CN-03 α (measured) = 1 kHz: 4.7 / 10 kHz: 160 dB/km α (measured) 1 kHz: 4.7 / 10 kHz: 160 dB/km 20 °C, 101.325 kPa, 50% RH OBSERVED-REPLICATED (tertiary reproduction) NPL Kaye & Laby tables, as reproduced by Frontier Labs Fetch NPL/ISO 9613-1 directly; a value >20% off refutes.
CN03-36 CN-03 α(10k)/α(1k) = 34 (pure f² predicts 100) dimensionless α(10k)/α(1k) 34 (pure f² predicts 100) dimensionless 20 °C, 50% RH MODELED Computed in-chapter from the row above Arithmetic; or the source table refuted.
CN03-37 CN-03 α humidity shape = non-monotonic: peak 280 at 20% RH; 190 → 240 → 95 dB/km at 10 → 30 → 90% RH dB/km α humidity shape non-monotonic: peak 280 at 20% RH; 190 → 240 → 95 dB/km at 10 → 30 → 90% RH dB/km 10 kHz, 20 °C OBSERVED-REPLICATED (tertiary reproduction) as above A primary table showing monotonic humidity dependence at 10 kHz.
CN03-38 CN-03 α below 1 kHz — no value carried α below 1 kHz dB/km infrasound / low audio band NOT-MEASURED not fetched in this pass Fetch ISO 9613-1 tables for 50–1000 Hz.
CN03-39 CN-03 range @ 100 dB = 21 km (1 kHz) vs 0.63 km (10 kHz) km range @ 100 dB 21 km (1 kHz) vs 0.63 km (10 kHz) km 20 °C, 50% RH, absorption only MODELED Computed in-chapter Either input refuted.
CN03-40 CN-03 Rayleigh = ∝ 1/λ⁴ Rayleigh ∝ 1/λ⁴ scatterers ≪ λ OBSERVED-REPLICATED Strutt [Rayleigh] 1871, Phil. Mag. 41:107–120, 274–279 A small-particle scattering exponent ≠ 4.
CN03-41 CN-03 blue/red = 4.4 dimensionless blue/red 4.4 dimensionless (650/450)⁴ MODELED Computed in-chapter Arithmetic.
CN03-42 CN-03 violet/red = 7.0 dimensionless violet/red 7.0 dimensionless (650/400)⁴ — yet the sky is blue MODELED Computed in-chapter Arithmetic.
CN03-43 CN-03 T_e = 254.6 K T_e 254.6 K [S(1−α)/4σ]^¼; S=1361 W/m², α=0.30 MODELED Computed in-chapter; S and albedo not primary-sourced in this pass — and the NASA sheet cited elsewhere in this chapter disagrees Fetch CERES/TSI primaries; the cited fact sheet's own 0.385 / 1367.6 / 247.3 K disagree with this row and are believed superseded.
CN03-44 CN-03 Bond albedo + T_e (NASA sheet) = 0.385 → T_e 247.3 (printed); 246.8 recomputed from its own S and α — / K Bond albedo + T_e (NASA sheet) 0.385 → T_e 247.3 (printed); 246.8 recomputed from its own S and α — / K as printed on the fact sheet, with its S = 1367.6 W/m² INADMISSIBLE as current NASA NSSDC Earth Fact Sheet (Colorado mirror) — same sheet, same defect as its 350 ppm CO₂ row Superseded by modern CERES-era planetary albedo ≈0.29–0.31 and TSI ≈1361 W/m²; refute those and this row returns and the greenhouse gap becomes ~41 K.
CN03-45 CN-03 T_s = 288 K T_s 288 K mean surface temperature OBSERVED-REPLICATED NASA NSSDC Earth Fact Sheet (mirror) Independent value >2 K off.
CN03-46 CN-03 greenhouse ΔT = 33.4 K greenhouse ΔT 33.4 K T_s − T_e MODELED Computed in-chapter Either input refuted.
CN03-47 CN-03 η_Carnot = ≤ 0.15 (15%) dimensionless η_Carnot ≤ 0.15 (15%) dimensionless 1 − 255/300; a ceiling, not a performance MODELED Computed in-chapter Arithmetic; or refute the reservoir temperatures.
CN03-48 CN-03 KE generation — no value carried KE generation W/m² fraction of solar input → circulation KE NOT-MEASURED not fetched in this pass Fetch a primary energetics budget.
CN03-49 CN-03 Ω = 7.2921 × 10⁻⁵ rad/s Ω 7.2921 × 10⁻⁵ rad/s Earth sidereal rotation OBSERVED-REPLICATED (not primary-sourced in this pass) standard geodetic constant Fetch IERS conventions.
CN03-50 CN-03 f(45°) = 1.031 × 10⁻⁴ s⁻¹ f(45°) 1.031 × 10⁻⁴ s⁻¹ 2Ω sin φ MODELED Computed in-chapter Arithmetic.
CN03-51 CN-03 Ro synoptic = 0.097 dimensionless Ro synoptic 0.097 dimensionless U=10 m/s, L=1,000 km, φ=45° MODELED Computed in-chapter Inputs refuted.
CN03-52 CN-03 Ro tornado = ~4.8 × 10³ dimensionless Ro tornado ~4.8 × 10³ dimensionless U=50 m/s, L=100 m MODELED Computed in-chapter Inputs refuted.
CN03-53 CN-03 Ro sink = ~3 × 10² dimensionless Ro sink ~3 × 10² dimensionless U=0.01 m/s, L=0.3 m MODELED Computed in-chapter; U is a plausible residual, order-of-magnitude Measure the residual circulation in a real sink.
CN03-54 CN-03 Hadley extent = ~30 ° latitude Hadley extent ~30 ° latitude equator → subtropics, approximately axisymmetric OBSERVED-REPLICATED standard atmospheric dynamics An observed circulation terminating far from 30°.
CN03-55 CN-03 Hadley local Ro = ~1 (0.3–0.6 at extremities) dimensionless Hadley local Ro ~1 (0.3–0.6 at extremities) dimensionless vorticity-based Ro_L = −ζ̄/f — different definition MODELED (secondary; see NOT-SOURCED) axisymmetric Hadley literature (Hill & Bordoni; Schneider 1977), via a fetched summary Fetch the primary; a value far from unity.
CN03-56 CN-03 GOE = 2.33 (vs ~2.4–2.45 commonly quoted) Ga GOE 2.33 (vs ~2.4–2.45 commonly quoted) Ga last occurrence of S-MIF, South Africa OBSERVED-CONTESTED Luo et al. 2016, Sci. Adv. 2:e1600134 See next row — asynchrony would void 'a' date.
CN03-57 CN-03 GOE synchrony = disputed GOE synchrony disputed S-isotope signals may be globally asynchronous OBSERVED-CONTESTED Nat. Commun. (2018) 'Globally asynchronous sulphur isotope signals…'; Nat. Commun. (2023) 'Reconciling discrepant minor sulfur isotope records…' A globally synchronous S-MIF disappearance.
CN03-58 CN-03 O₂ Permian peak = ~30 % O₂ Permian peak ~30 % Phanerozoic maximum, late Palaeozoic MODELED Berner 2006, GCA 70(23):5653–5664; rev. Berner 2009, Am. J. Sci. 309(7):603–606 Recompute the mass balance; a proxy measurement contradicting.
CN03-59 CN-03 O₂ at 300 Ma = ~45% above present relative O₂ at 300 Ma ~45% above present relative as reported alongside Snelling et al. MODELED via phys.org report of Snelling et al. 2026 Consistent with the ~30% row (30/20.95 = 1.43).
CN03-60 CN-03 Wingspan M. permiana = ~71 cm Wingspan M. permiana ~71 cm Early Permian griffinfly; largest known insect OBSERVED-REPLICATED Guinness World Records (wing impressions, Elmo, Kansas, 1937); widely reported A larger insect wing fossil.
CN03-61 CN-03 Tracheole vol. fraction = ≤1 % of flight-muscle volume Tracheole vol. fraction ≤1 % of flight-muscle volume most insect species OBSERVED-REPLICATED Snelling et al. 2026, Nature, doi:10.1038/s41586-026-10291-3 Independent morphometry >2× off.
CN03-62 CN-03 Tracheole scaling = 1.8-fold over a 10⁴-fold mass range Tracheole scaling 1.8-fold over a 10⁴-fold mass range incl. extension to M. permiana OBSERVED-REPLICATED Snelling et al. 2026 Show strong compensation in giant taxa.
CN03-63 CN-03 Capillary comparison = ~10× the tracheole fraction Capillary comparison ~10× the tracheole fraction bird/mammal cardiac muscle OBSERVED-REPLICATED Snelling et al. 2026 Independent morphometry.
CN03-64 CN-03 O₂-limitation hypothesis = CONTESTED O₂-limitation hypothesis CONTESTED tracheal O₂ limits max insect size OBSERVED-CONTESTED For: Harrison, Kaiser & VandenBrooks 2010, Proc. R. Soc. B 277(1690):1937–1946. Against: Snelling et al. 2026, Nature Rearing experiments across aPO₂ resolving max size; do not average the two positions.
CN03-65 CN-03 W/S ∝ m^(1/3); v ∝ m^(1/6) = exponents ⅓, ⅙ W/S ∝ m^(1/3); v ∝ m^(1/6) exponents ⅓, ⅙ isometric scaling of a flyer MODELED Computed in-chapter Show non-isometric wing-area scaling that breaks it.
CN03-66 CN-03 P_req ∝ m^(7/6) = exponent 7/6 P_req ∝ m^(7/6) exponent 7/6 induced power, isometric MODELED Computed in-chapter; = Pennycuick's 7/6 law Arithmetic; or measured power scaling ≠ 7/6.
CN03-67 CN-03 P_avail ∝ m^(2/3) = exponent 2/3 P_avail ∝ m^(2/3) exponent 2/3 muscle mass ∝ m, wingbeat frequency falls with size MODELED Computed in-chapter; the second curve in the crossing Measured power-available scaling ≠ 2/3.
CN03-68 CN-03 max flapping mass (theory) = ~12 kg max flapping mass (theory) ~12 kg aerobically powered continuous flapping flight; m^(7/6) vs m^(2/3) crossing MODELED (NOT-SOURCED — via secondary reports, not the primary) Pennycuick's aerodynamic theory; secondary reports also give 'largest extant flying species ≈12–14 kg' (Pennycuick 1989) Fetch the primary; or a measured power-available exponent ≠ 2/3.
CN03-69 CN-03 heaviest extant flyers (census) = large males average ~16; verified individuals >20, accounts to ~21 kg heaviest extant flyers (census) large males average ~16; verified individuals >20, accounts to ~21 kg great bustard (Otis tarda) / kori bustard (Ardeotis kori) OBSERVED-REPLICATED (not primary-sourced in this pass) widely reported census figures — the ~16 kg figure is a mean, not a maximum Fetch a primary mass series; a verified maximum outside 19–21 kg.
CN03-70 CN-03 ceiling vs census = exceedance, not agreement ceiling vs census exceedance, not agreement heaviest bustards sit above the ~12 kg theoretical ceiling OBSERVED-CONTESTED this chapter; the two rows above, each in its own scope Show a >16 kg bird sustaining continuous aerobic flapping → refutes the ceiling. Show bustard flight is burst-only → the ceiling's scope condition holds and the exceedance is not one.
CN03-71 CN-03 whale wing area = ~2,715 (span ~147 m at AR 8) m² whale wing area ~2,715 (span ~147 m at AR 8) m=1.5×10⁵ kg, v=30 m/s, C_L=1.0, ρ=1.204 MODELED Computed in-chapter; mass is order-of-magnitude Arithmetic; inputs.
CN03-72 CN-03 whale V_air vs V_water = 1.2 × 10⁵ vs ~146 m³ whale V_air vs V_water 1.2 × 10⁵ vs ~146 buoyant displacement needed; ratio = 852 = ρ_seawater/ρ_air (cf. 829 for fresh water at 20 °C — different fluid, different row) MODELED Computed in-chapter: 1026/1.204 = 852 Arithmetic.
CN03-73 CN-03 Pelagornis wingspan = 6.06–7.38 m Pelagornis wingspan 6.06–7.38 m depends on feather-reconstruction method OBSERVED-REPLICATED Ksepka 2014, PNAS, doi:10.1073/pnas.1320297111 Re-measure; a span outside the range.
CN03-74 CN-03 Pelagornis mass = ~22–40 kg Pelagornis mass ~22–40 kg regression-dependent; exceeds the flapping ceiling — it soared OBSERVED-REPLICATED Ksepka 2014 As above.
CN03-75 CN-03 Quetzalcoatlus mass = 70 / 200–250 / 544 — a ~8× spread kg Quetzalcoatlus mass 70 / 200–250 / 544 — a ~8× spread kg 10–11 m wingspan; same fossils, three answers OBSERVED-CONTESTED Chatterjee & Templin 2004 (~70); Paul 2002 / Witton 2008 / Witton & Habib 2010 / Martin & Palmer 2014 (~200–250, the consensus cluster); Henderson 2010 (~544) — via secondary reports A method reconciling the three; do not quote one as 'the' mass — and do not round the ends inward, which shrinks the finding.
CN03-76 CN-03 Gaia (regulation) — no value carried Gaia (regulation) biosphere homeostatically regulates the planet HYPOTHESIZED Lovelock & Margulis 1974, Tellus 26(1–2):2–10 Specify a unit of selection, or a mechanism needing none, that survives Doolittle/Dawkins.
CN03-77 CN-03 Atmospheric disequilibrium = observed Atmospheric disequilibrium observed e.g. O₂/CH₄ coexistence; belongs to no theory OBSERVED-REPLICATED Lovelock & Margulis 1974 and standard atmospheric chemistry Show the atmosphere is at thermodynamic equilibrium.
CN03-78 CN-03 Daisyworld = existence proof of a mechanism — not evidence Earth uses it Daisyworld existence proof of a mechanism — not evidence Earth uses it model world; local selfish fitness → global T stability MODELED Watson & Lovelock 1983, Tellus B 35(4):284–289 Model reproduction failing to stabilise; cannot be falsified by anything about Earth — that is the point.
CN03-79 CN-03 Bathtub Coriolis (as told) = INADMISSIBLE Bathtub Coriolis (as told) INADMISSIBLE 'your sink swirls by hemisphere' INADMISSIBLE refuted by Ro ~3 × 10² above Measure sink vorticity sign vs. hemisphere without controlling residual circulation.
CN03-80 CN-03 Bathtub Coriolis (as done) = detected Bathtub Coriolis (as done) detected 6-ft tank, 6 in deep, covered, 24 h settling OBSERVED-REPLICATED Shapiro 1962, 'Bath-Tub Vortex', Nature 196(4859):1080–1081; Southern-Hemisphere counterpart, Nature 207:1084 Repeat with settling and fail to see the rotation.

CN-04 — Stars: the factory that made every atom in the cell

Source: cookbook/recipes-natura/CN-04-stars.md · 45 rows

row_id chapter claim symbol value units scope class source falsifier
CN04-01 CN-04 dP/dr = −GM(r)ρ(r)/r² Pa/m dP/dr −GM(r)ρ(r)/r² Pa/m hydrostatic equilibrium; any star on timescales ≫ sound-crossing MODELED standard stellar structure A stable star with a measured pressure gradient inconsistent with its mass distribution.
CN04-02 CN-04 ν_pp = ~4 dimensionless (∂ln ε/∂ln T) ν_pp ~4 dimensionless (∂ln ε/∂ln T) p-p chain near 15 MK OBSERVED-REPLICATED (standard reference; not primary-sourced in this pass) standard nuclear astrophysics Measured cross-section temperature dependence outside range.
CN04-03 CN-04 ν_CNO = ~18–20 dimensionless ν_CNO ~18–20 dimensionless CNO cycle near 15–20 MK OBSERVED-REPLICATED (standard reference; not primary-sourced in this pass) as above As above.
CN04-04 CN-04 ν_3α = ~40 dimensionless ν_3α ~40 dimensionless triple-alpha near 10⁸ K OBSERVED-REPLICATED (standard reference; not primary-sourced in this pass) as above As above.
CN04-05 CN-04 T_c,☉ = 1.54 × 10⁷ K T_c,☉ 1.54 × 10⁷ K standard solar model, current epoch MODELED arXiv:2501.09971 Table 1; cf. Salmon et al. 2021, A&A 651, A106 An SSM variant outside 1.4–1.7 × 10⁷ K reproducing helioseismology + neutrinos.
CN04-06 CN-04 ρ_c,☉ = 149 g/cm³ ρ_c,☉ 149 g/cm³ standard solar model, current epoch MODELED arXiv:2501.09971 Table 1 As above.
CN04-07 CN-04 ρ_mean,☉ = 1.41 g/cm³ ρ_mean,☉ 1.41 g/cm³ M☉/((4/3)πR☉³), M☉=1.989×10³⁰ kg, R☉=6.957×10⁸ m MODELED Computed in-chapter Arithmetic error.
CN04-08 CN-04 ρ_c/ρ_mean = ~106 dimensionless ρ_c/ρ_mean ~106 dimensionless Sun MODELED Computed in-chapter from the two rows above Arithmetic error.
CN04-09 CN-04 P_c (uniform-ρ) = ~1.3 × 10¹⁴ Pa P_c (uniform-ρ) ~1.3 × 10¹⁴ Pa 3GM²/(8πR⁴), Sun — a lower bound, not a value; the SSM value is ~170× higher MODELED Computed in-chapter Arithmetic error.
CN04-10 CN-04 P_c,☉ (SSM) = 2.3 × 10¹⁶ Pa P_c,☉ (SSM) 2.3 × 10¹⁶ Pa standard solar model, current epoch MODELED arXiv:2501.09971 Table 1 An SSM variant outside this range reproducing helioseismology + neutrinos.
CN04-11 CN-04 λ_J = c_s√(π/(Gρ)) m λ_J c_s√(π/(Gρ)) m Jeans length, isothermal, uniform static background MODELED Jeans 1902, Phil Trans R Soc A 199:1–53 See the Jeans-swindle row.
CN04-12 CN-04 Jeans swindle = derivation linearises about a background that is not a solution Jeans swindle derivation linearises about a background that is not a solution the λ_J derivation INADMISSIBLE as rigorous Binney & Tremaine, Galactic Dynamics A derivation retaining the background field that recovers λ_J.
CN04-13 CN-04 α (MLR) = 2.028 / 4.572 / 5.743 / 4.329 / 3.967 / 2.865 dimensionless α (MLR) 2.028 / 4.572 / 5.743 / 4.329 / 3.967 / 2.865 dimensionless six pieces over 0.179–31 M☉; 509 stars, detached eclipsing binaries OBSERVED-REPLICATED Eker et al. 2018, MNRAS 479(4):5491–5511, doi:10.1093/mnras/sty1834 (Table 4) An independent DEB sample with a single exponent, or different break points.
CN04-14 CN-04 α = 3.5 = not found in any piece dimensionless α = 3.5 not found in any piece dimensionless the textbook value SUPERSEDED contradicted by Eker et al. 2018 Show a mass range where 3.5 is the calibrated fit.
CN04-15 CN-04 t_MS,☉ = ~10¹⁰ yr t_MS,☉ ~10¹⁰ yr Sun, main sequence MODELED (standard reference; not primary-sourced in this pass) standard stellar evolution Evolutionary track outside 8–12 Gyr.
CN04-16 CN-04 t_MS(30 M☉) = 2 × 10⁶ (α=3.5) vs 1.8 × 10⁷ (α=2.865); robust range 10⁶–10⁷ yr t_MS(30 M☉) 2 × 10⁶ (α=3.5) vs 1.8 × 10⁷ (α=2.865); robust range 10⁶–10⁷ yr t ∝ M^(1−α), anchored on the Sun MODELED Computed in-chapter from Eker et al. 2018 + t ∝ M/L A detailed evolutionary track for 30 M☉ outside 10⁶–10⁷ yr.
CN04-17 CN-04 t_☉,formation = 4.567 × 10⁹ yr t_☉,formation 4.567 × 10⁹ yr Pb–Pb dating of CAIs OBSERVED-REPLICATED Connelly et al. 2012, Science 338:651–655 Independent radiometric dating >1% off.
CN04-18 CN-04 f_pp / f_CNO = ~99 / ~1 % of solar energy f_pp / f_CNO ~99 / ~1 % of solar energy standard solar model MODELED, confirmed for CNO Salmon et al. 2021, A&A 651, A106; arXiv:2501.09971 An SSM with a materially different split fitting the neutrino data.
CN04-19 CN-04 Φ(CNO) final = 6.7 (+1.2 / −0.8) × 10⁸ cm⁻² s⁻¹ Φ(CNO) final 6.7 (+1.2 / −0.8) × 10⁸ cm⁻² s⁻¹ solar CNO neutrinos; CID over the complete 2007–2021 dataset + an improved Phase-III spectral fit OBSERVED-REPLICATED Borexino Collaboration 2023, Phys Rev D 108:102005, arXiv:2307.14636 An independent detector outside the interval.
CN04-20 CN-04 Φ(CNO) first detection = 7.0 (+3.0 / −2.0) × 10⁸ cm⁻² s⁻¹ Φ(CNO) first detection 7.0 (+3.0 / −2.0) × 10⁸ cm⁻² s⁻¹ solar CNO neutrinos; Borexino Phase-III spectral fit, 1,072 d live time OBSERVED-REPLICATED Borexino Collaboration 2020, Nature 587:577–582, doi:10.1038/s41586-020-2934-0 Superseded in precision, not in fact.
CN04-21 CN-04 t½(⁸Be) = ~10⁻¹⁶ s t½(⁸Be) ~10⁻¹⁶ s ⁸Be ground state, unbound OBSERVED-REPLICATED (standard nuclear data; not primary-sourced in this pass) standard nuclear data tables Measured lifetime >10× off.
CN04-22 CN-04 E_x(Hoyle) predicted = ~7.68 MeV E_x(Hoyle) predicted ~7.68 MeV Hoyle's prediction from the observed carbon abundance, 1953 — (a prediction, not a measurement) Hoyle, Dunbar, Wenzel & Whaling 1953, Phys Rev 92:1095 Historical record.
CN04-23 CN-04 E_x(Hoyle) first measured = 7.68 MeV E_x(Hoyle) first measured 7.68 MeV Kellogg Radiation Laboratory, 1953 OBSERVED-REPLICATED Dunbar, Pixley, Wenzel & Whaling 1953, Phys Rev 92:649–650, doi:10.1103/PhysRev.92.649 Superseded in precision, not in fact.
CN04-24 CN-04 E_x(Hoyle) modern = 7,654.07 ± 0.19 keV E_x(Hoyle) modern 7,654.07 ± 0.19 keV ¹²C second excited state, 0⁺ OBSERVED-REPLICATED NNDC, via Freer & Fynbo 2014, Prog Part Nucl Phys 78:1–23 A measurement outside ±0.19 keV.
CN04-25 CN-04 BE/A(⁶²Ni) = 8.7945 MeV/nucleon BE/A(⁶²Ni) 8.7945 MeV/nucleon highest known binding energy per nucleon OBSERVED-REPLICATED standard nuclear mass tables A nuclide measured higher.
CN04-26 CN-04 BE/A(⁵⁸Fe) = 8.7922 MeV/nucleon BE/A(⁵⁸Fe) 8.7922 MeV/nucleon second OBSERVED-REPLICATED as above As above.
CN04-27 CN-04 BE/A(⁵⁶Fe) = 8.7903 MeV/nucleon BE/A(⁵⁶Fe) 8.7903 MeV/nucleon third — but lowest mass per nucleon (a different quantity) OBSERVED-REPLICATED as above Show ⁵⁶Fe has the highest BE/A, or that mass/nucleon and BE/A are the same quantity.
CN04-28 CN-04 ΔBE/A (⁶²Ni − ⁵⁶Fe) = 4.2 (0.048%) keV/nucleon ΔBE/A (⁶²Ni − ⁵⁶Fe) 4.2 (0.048%) keV/nucleon the whole 'iron peak' spread MODELED Computed in-chapter from the rows above Arithmetic error.
CN04-29 CN-04 t½(⁵⁶Ni → ⁵⁶Co) = ~6 d t½(⁵⁶Ni → ⁵⁶Co) ~6 d powers the early Type Ia light curve OBSERVED-REPLICATED (standard nuclear data; not primary-sourced in this pass) standard nuclear data tables Measured half-life >10% off.
CN04-30 CN-04 t½(⁵⁶Co → ⁵⁶Fe) = ~77 d t½(⁵⁶Co → ⁵⁶Fe) ~77 d powers the Type Ia light-curve tail OBSERVED-REPLICATED (standard nuclear data; not primary-sourced in this pass) standard nuclear data tables As above.
CN04-31 CN-04 f_Fe,Ia = ~50–70 % of solar-neighbourhood ⁵⁶Fe f_Fe,Ia ~50–70 % of solar-neighbourhood ⁵⁶Fe chemical-evolution estimates genuinely spread MODELED / CONTESTED galactic chemical evolution literature; Johnson 2019, Science 363:474–478 A model-independent measurement of the split.
CN04-32 CN-04 Sr II in AT2017gfo = P Cygni ~8000 Å at 1.4, 2.4, 3.4 d post-merger Sr II in AT2017gfo P Cygni ~8000 Å at 1.4, 2.4, 3.4 d post-merger kilonova AT2017gfo / GW170817 OBSERVED-REPLICATED Watson et al. 2019, Nature 574:497–500, doi:10.1038/s41586-019-1676-3 Reanalysis attributing the feature to a non-r-process species.
CN04-33 CN-04 Au in AT2017gfo = NOT DETECTED; M_Au ≲ 10⁻², M_Pt ≲ few × 10⁻³ M☉ (upper limits) Au in AT2017gfo NOT DETECTED; M_Au ≲ 10⁻², M_Pt ≲ few × 10⁻³ M☉ (upper limits) 'no platinum or gold signatures are prominent in the ejecta' NOT-MEASURED (upper limits only) Gillanders et al. 2021, MNRAS 506(3):3560–3577, doi:10.1093/mnras/stab1861 A spectroscopic identification of Au or Pt in a kilonova.
CN04-34 CN-04 M_ejecta(AT2017gfo) — no value carried M_ejecta(AT2017gfo) M☉ total r-process ejecta mass NOT-SOURCED in this pass not confirmed here Fetch the kilonova modelling papers and read the mass.
CN04-35 CN-04 r-process dominant site = mergers identified as a site; dominance open (delay-time vs Eu in metal-poor stars) r-process dominant site mergers identified as a site; dominance open (delay-time vs Eu in metal-poor stars) galactic r-process budget OBSERVED-CONTESTED Watson et al. 2019 (site); chemical-evolution tension A chemical-evolution model reproducing early Eu with mergers alone.
CN04-36 CN-04 f_5min = ~3,300 (≈3.3 mHz, ~5 min period) μHz f_5min ~3,300 (≈3.3 mHz, ~5 min period) μHz solar p-mode power peak OBSERVED-REPLICATED Leighton, Noyes & Simon 1962, ApJ 135:474; Deubner 1975, A&A 44:371 Independent Doppler imaging failing to find the peak.
CN04-37 CN-04 Δc_s/c_s = 0.10 % (rms fractional) Δc_s/c_s 0.10 % (rms fractional) SSM vs helioseismic inversion, 0.05–0.95 R☉ OBSERVED-REPLICATED (inversion) / MODELED (the model side) Bahcall, Pinsonneault & Basu 2001, ApJ 555:990 An independent inversion disagreeing at >0.5%.
CN04-38 CN-04 Solar abundance problem = low-Z (AGSS09) breaks helioseismic agreement; high-Z (GS98) preserves it; Borexino CNO favours high-Z Solar abundance problem low-Z (AGSS09) breaks helioseismic agreement; high-Z (GS98) preserves it; Borexino CNO favours high-Z unresolved OBSERVED-CONTESTED Asplund et al. 2009, ARA&A 47:481; Grevesse & Sauval 1998, Space Sci Rev 85:161; Borexino Collaboration 2023, Phys Rev D 108:102005; arXiv:2501.09971 An SSM reconciling AGSS09 abundances with 0.1% sound speed and the neutrino fluxes.
CN04-39 CN-04 Ṗ_b,obs/Ṗ_b,GR = 0.9983 ± 0.0016 dimensionless Ṗ_b,obs/Ṗ_b,GR 0.9983 ± 0.0016 dimensionless PSR B1913+16; 9,257 TOAs over 35 yr OBSERVED-REPLICATED Weisberg & Huang 2016, ApJ 829:55, doi:10.3847/0004-637X/829/1/55 A ratio outside the interval on longer baselines.
CN04-40 CN-04 M_psr / M_comp = 1.438 ± 0.001 / 1.390 ± 0.001 M☉ M_psr / M_comp 1.438 ± 0.001 / 1.390 ± 0.001 M☉ PSR B1913+16 OBSERVED-REPLICATED Weisberg & Huang 2016 As above.
CN04-41 CN-04 d(B1913+16) = 4.1 (+2.0 / −0.7) kpc d(B1913+16) 4.1 (+2.0 / −0.7) kpc VLBI annual geometric parallax, π = 0.24 (+0.06 / −0.08) mas. Weisberg & Huang 2016 instead assumed 9.8 ± 3.1 kpc (dispersion-measure based); the distance is the dominant systematic on the 0.9983 ratio OBSERVED-SINGLE Deller et al. 2018, ApJ 862:139, doi:10.3847/1538-4357/aacf95 An independent parallax outside the interval.
CN04-42 CN-04 L_Edd = 1.26 × 10³¹ (M/M☉) ≈ 3.3 × 10⁴ (M/M☉) L☉ W L_Edd 1.26 × 10³¹ (M/M☉) ≈ 3.3 × 10⁴ (M/M☉) L☉ W 4πGMm_p c/σ_T; spherical, steady, ionised H, Thomson opacity only MODELED Eddington 1926, The Internal Constitution of the Stars; arithmetic computed in-chapter Arithmetic error; or a steady spherical source persistently above it.
CN04-43 CN-04 L☉/L_Edd,☉ = 3.0 × 10⁻⁵ dimensionless L☉/L_Edd,☉ 3.0 × 10⁻⁵ dimensionless 3.828 × 10²⁶ / 1.26 × 10³¹ MODELED Computed in-chapter Arithmetic error.
CN04-44 CN-04 Y_p = ~0.245 mass fraction Y_p ~0.245 mass fraction primordial helium, BBN/CMB concordance OBSERVED-REPLICATED (standard reference; not primary-sourced in this pass) BBN/CMB literature An independent determination outside ~0.24–0.25.
CN04-45 CN-04 Lithium problem = BBN+CMB over-predicts ⁷Li vs metal-poor stars by ~3× Lithium problem BBN+CMB over-predicts ⁷Li vs metal-poor stars by ~3× primordial ⁷Li — open OBSERVED-CONTESTED BBN literature; Johnson 2019, Science 363:474–478 A resolution (stellar depletion, or new physics) that closes it.

CN-05 — DNA: the information substrate

Source: cookbook/recipes-natura/CN-05-dna.md · 62 rows

row_id chapter claim symbol value units scope class source falsifier
CN05-01 CN-05 rise = ~3.4 (0.34) Å (nm) /bp rise ~3.4 (0.34) Å (nm) /bp B-DNA OBSERVED-REPLICATED Potaman & Sinden, NCBI Bookshelf NBK6545; Watson & Crick 1953, Nature 171:737–738 Structural measurement outside 3.3–3.5 Å under B-form conditions.
CN05-02 CN-05 bp/turn (fibre) = 10.0 bp bp/turn (fibre) 10.0 bp B-form fibre diffraction OBSERVED-REPLICATED Watson & Crick 1953; as compared in Wang 1979 Re-analysis of fibre data giving ≠10.
CN05-03 CN-05 bp/turn (solution) = 10.4 ± 0.1 bp bp/turn (solution) 10.4 ± 0.1 bp B-DNA free in solution, physiological; topoisomer gel OBSERVED-REPLICATED Wang 1979, PNAS 76(1):200–203, doi:10.1073/pnas.76.1.200 Repeat topoisomer ladder; value outside 10.3–10.5.
CN05-04 CN-05 bp/turn (Rhodes & Klug) = 10.6 ± 0.1 bases bp/turn (Rhodes & Klug) 10.6 ± 0.1 bases DNase I cutting periodicity on DNA immobilised on three surfaces; the authors identify the value with the repeat in solution OBSERVED-REPLICATED Rhodes & Klug 1980, Nature 286(5773):573–578, PMID 7402337 Repeat digestion periodicity outside 10.5–10.7.
CN05-05 CN-05 bp/turn 10.4 vs 10.6 = unreconciled — two primaries, same nominal condition (solution), two assays bp bp/turn 10.4 vs 10.6 unreconciled — two primaries, same nominal condition (solution), two assays bp topoisomer ladder (Wang) vs DNase I periodicity (Rhodes & Klug) OBSERVED-CONTESTED Wang 1979; Rhodes & Klug 1980 An assay reconciling the two, or a re-measurement collapsing the gap.
CN05-06 CN-05 bp/turn '10.5' = 10.5 bp bp/turn '10.5' 10.5 bp quoted everywhere; printed by Potaman & Sinden Table 1 as B-DNA residues/turn; sits between two unreconciled primaries NOT-SOURCED in this pass (value printed in source; provenance not traced) Potaman & Sinden, NBK6545 Table 1 Establish whether 10.5 is an independent determination, a rounding, or a midpoint of 10.4 and 10.6.
CN05-07 CN-05 diameter = 23 (A) / ~20 (B) / 18 (Z) Å diameter 23 (A) / ~20 (B) / 18 (Z) Å A-, B-, Z-DNA OBSERVED-REPLICATED Potaman & Sinden, NBK6545 Table 1 Structural measurement outside range.
CN05-08 CN-05 groove widths (12/6) = major ~12, minor ~6 Å groove widths (12/6) major ~12, minor ~6 Å B-DNA, convention not sourced here NOT-SOURCED in this pass not confirmed here — NBK6545 Table 1 has no groove-width row; the prior attribution to it was fabricated (recorded in-chapter) Fetch a primary printing these values and naming the measurement convention.
CN05-09 CN-05 groove widths (22/12) = 22 / 12 Å groove widths (22/12) 22 / 12 Å widely repeated textbook pair — different convention NOT-SOURCED in this pass not confirmed here Fetch a primary source and name the measurement convention.
CN05-10 CN-05 groove convention offset = ~5.8 Å groove convention offset ~5.8 Å claimed offset between P–P and vdW-corrected conventions NOT-SOURCED in this pass not confirmed here Fetch a primary defining groove width as smallest P–P separation minus the phosphate diameter. It accounts for 12 → 6.2 ≈ 6 but fails on 22 → 16.2 ≠ 12 (a 10 Å gap), so it does not reconcile the two pairs.
CN05-11 CN-05 A-DNA = 11 bp/turn; rise 2.55 Å; C3′-endo; 9 Å axial hole; tilt ~20° A-DNA 11 bp/turn; rise 2.55 Å; C3′-endo; 9 Å axial hole; tilt ~20° A-form OBSERVED-REPLICATED Potaman & Sinden, NBK6545 Structural measurement outside range.
CN05-12 CN-05 Z-DNA = left-handed; 12 bp/turn; rise 3.7 Å; 18 Å; 30°/bp Z-DNA left-handed; 12 bp/turn; rise 3.7 Å; 18 Å; 30°/bp Z-form, atomic-resolution crystal OBSERVED-REPLICATED Wang et al. 1979, Nature 282:680; Potaman & Sinden Re-refinement contradicting handedness or repeat.
CN05-13 CN-05 ℓ_p = ~50 (~150) nm (bp) ℓ_p ~50 (~150) nm (bp) dsDNA, ~0.1 M NaCl, ~20–25 °C; tweezers + AFM consensus OBSERVED-REPLICATED Peters & Maher 2010, Q Rev Biophys 43(1):23–63, PMID 20478077 Independent single-molecule measurement outside 45–55 nm at the stated temperature and ionic strength.
CN05-14 CN-05 ℓ_p vs temperature = 53.2 nm (5 °C) → 42.5 nm (42 °C) nm ℓ_p vs temperature 53.2 nm (5 °C) → 42.5 nm (42 °C) nm TBE + 10 mM MgCl₂ — a different ionic condition from the row above; j-factor + linking-number methods. A condition on the 50 nm consensus, not support for it: at ≥37 °C it sits at or below that row's own falsifier band OBSERVED-REPLICATED Geggier, Kotlyar & Vologodskii 2011, NAR 39(4):1419–1426, PMID 20952402 A measurement showing ℓ_p temperature-independent across 5–42 °C.
CN05-15 CN-05 ℓ_p sub-100 bp = short DNA more bendable than WLC predicts ℓ_p sub-100 bp short DNA more bendable than WLC predicts <100 bp cyclisation OBSERVED-CONTESTED Vafabakhsh & Ha, Science, PMC3565842 A cyclisation method restoring WLC agreement below 100 bp.
CN05-16 CN-05 I/bp = 2 bits/bp I/bp 2 bits/bp log₂(4); upper bound, assumes no correlation MODELED Computed in-chapter Arithmetic error (the bound itself is definitional).
CN05-17 CN-05 G_human = 3,054,815,472 (+16,569 mtDNA) bp G_human 3,054,815,472 (+16,569 mtDNA) bp T2T-CHM13, gapless, chr1–22 + X OBSERVED-REPLICATED Nurk et al. 2022, Science 376:44–53, doi:10.1126/science.abj6987 Independent T2T assembly differing >0.1%.
CN05-18 CN-05 I_genome = 6.11e9 bits ≈ 764 MB (haploid); ~1.53 GB (diploid) bits/bytes I_genome 6.11e9 bits ≈ 764 MB (haploid); ~1.53 GB (diploid) bits/bytes at 2 bits/bp, T2T-CHM13 MODELED Computed in-chapter Arithmetic error.
CN05-19 CN-05 f_coding = 1–2 (exome ~1.5) % of genome f_coding 1–2 (exome ~1.5) % of genome human OBSERVED-REPLICATED Piovesan et al. 2019, BMC Res Notes, doi:10.1186/s13104-019-4343-8 Annotation revision moving coding fraction outside 1–2%.
CN05-20 CN-05 pg→bp = 1 pg = 0.978e9 bp pg→bp 1 pg = 0.978e9 bp flow-cytometry conversion OBSERVED-REPLICATED Doležel et al. 2003, Cytometry A, doi:10.1002/cyto.a.10013 Re-derivation of nucleotide-pair molecular weight.
CN05-21 CN-05 G_onion = 16.75 pg ≈ 16.4 (≥95% repetitive) Gbp G_onion 16.75 pg ≈ 16.4 (≥95% repetitive) Gbp Allium cepa 1C OBSERVED-REPLICATED onion assembly literature (PMC8496297; PMC11865573) + Doležel conversion Flow-cytometry re-measurement outside 15–18 Gbp.
CN05-22 CN-05 G_lungfish = 91 (~90% repeat) Gbp G_lungfish 91 (~90% repeat) Gbp Lepidosiren paradoxa — largest sequenced animal genome OBSERVED-REPLICATED Schartl et al. 2024, Nature 634:96–103, doi:10.1038/s41586-024-07830-1 Independent assembly differing >10%.
CN05-23 CN-05 G_P.aethiopicus = ~130 Gbp G_P.aethiopicus ~130 Gbp marbled lungfish — estimate, NOT sequenced OBSERVED-CONTESTED / NOT-SEQUENCED flagged as unsequenced in Schartl et al. 2024 coverage Sequence it.
CN05-24 CN-05 G_fern = 160.45 Gbp/1C G_fern 160.45 Gbp/1C Tmesipteris oblanceolata — current eukaryotic record OBSERVED-REPLICATED Fernández et al. 2024, iScience, doi:10.1016/j.isci.2024.109889 Independent flow cytometry differing >10%.
CN05-25 CN-05 G_Paris = 152.23 pg ≈ 149 Gbp G_Paris 152.23 pg ≈ 149 Gbp Paris japonica 1C OBSERVED-REPLICATED Pellicer et al. 2010, Bot J Linn Soc 164(1):10, doi:10.1111/j.1095-8339.2010.01072.x Re-measurement outside range.
CN05-26 CN-05 G_Polychaos = 670 pg (~655 Gbp) G_Polychaos 670 pg (~655 Gbp) Polychaos dubium — DO NOT USE INADMISSIBLE BNID 104470, flagged 'dubious report / outdated value' Re-measure single nuclei with modern methods.
CN05-27 CN-05 ε_selection = ~10⁻⁴–10⁻⁵ (in vitro); ~10⁻⁵ (in vivo E. coli, a review's round estimate) per bp ε_selection ~10⁻⁴–10⁻⁵ (in vitro); ~10⁻⁵ (in vivo E. coli, a review's round estimate) per bp polymerase base selection alone OBSERVED-CONTESTED (assay-dependent) Kunkel 2004, JBC 279(17):16895–8 (in vitro); Fijalkowska, Schaaper & Jonczyk 2012, FEMS Microbiol Rev 36(6):1105–1121, PMID 22404288 (the 10⁻⁵ estimate). Schaaper 1993 measures a 200,000–2,000,000-fold discrimination, not a rate See in-vivo row below; an assay reconciling both.
CN05-28 CN-05 Schaaper's measured factors = base selection 200,000–2,000,000×; proofreading 40–200×; MMR 20–400× fold discrimination Schaaper's measured factors base selection 200,000–2,000,000×; proofreading 40–200×; MMR 20–400× fold discrimination E. coli, 866 sequenced lacI mutations in correction-deficient strains OBSERVED-REPLICATED Schaaper 1993, JBC 268(32):23762–23765, PMID 8226906 A re-dissection outside these fold ranges.
CN05-29 CN-05 ε_selection in vivo vs in vitro = in vivo base selectivity >100× higher than in vitro ε_selection in vivo vs in vitro in vivo base selectivity >100× higher than in vitro yeast Pol ε / Pol δ, proofreading- and MMR-deficient background OBSERVED-CONTESTED St Charles et al. 2015, DNA Repair 31:41–51, doi:10.1016/j.dnarep.2015.04.006 An in-vitro assay reproducing the in-vivo selectivity.
CN05-30 CN-05 ε_proof = ~10⁻⁷ as a ladder rung (= 10⁻⁵ × the review's ~10⁻² factor) per bp ε_proof ~10⁻⁷ as a ladder rung (= 10⁻⁵ × the review's ~10⁻² factor) per bp + 3′→5′ exonucleolytic proofreading MODELED — a review's round decade; not reproduced by the measured factor rung from Fijalkowska et al. 2012; measured factor = 40–200× (10⁻¹·⁶–10⁻²·³), Schaaper 1993 An in vivo proofreading gain measured outside 40–200×.
CN05-31 CN-05 ε_MMR = ~10⁻¹⁰ overall as the ladder rung (× the review's ~10⁻³ factor); measured overall band 10⁻⁹–10⁻¹¹ per bp ε_MMR ~10⁻¹⁰ overall as the ladder rung (× the review's ~10⁻³ factor); measured overall band 10⁻⁹–10⁻¹¹ per bp + mismatch repair; overall MODELED (the ladder rung); OBSERVED-REPLICATED (the overall band) Fijalkowska et al. 2012 (abstract: 'as low as 10⁻⁹ to 10⁻¹¹ errors per base pair'); measured MMR factor = 20–400×, Schaaper 1993 Mutation-accumulation whole-genome rate outside 10⁻⁹–10⁻¹¹.
CN05-32 CN-05 ladder vs measured factors = Schaaper's measured factors on a 10⁻⁵ rung span ~10⁻⁷·⁹ to ~10⁻⁹·⁹ — reaching 10⁻¹⁰ only at the most generous edge per bp ladder vs measured factors Schaaper's measured factors on a 10⁻⁵ rung span ~10⁻⁷·⁹ to ~10⁻⁹·⁹ — reaching 10⁻¹⁰ only at the most generous edge per bp the decades do not reproduce from the measurement MODELED Computed in-chapter from Schaaper 1993 + Fijalkowska et al. 2012 Arithmetic error; or a dissection whose measured factors compose to 10⁻¹⁰.
CN05-33 CN-05 proofreading asymmetry = strand-asymmetric (Pol ε leading vs Pol δ lagging); proofreading > MMR on average, but varies per mismatch proofreading asymmetry strand-asymmetric (Pol ε leading vs Pol δ lagging); proofreading > MMR on average, but varies per mismatch yeast, in vivo OBSERVED-REPLICATED St Charles et al. 2015 A dissection showing strand symmetry.
CN05-34 CN-05 errors/replication = ~6.1e4 → ~610 → ~0.6 errors per diploid genome copy errors/replication ~6.1e4 → ~610 → ~0.6 errors per diploid genome copy 6.11 Gbp at 10⁻⁵ / 10⁻⁷ / 10⁻¹⁰ (in-vivo ladder); ~6.1e5 at the in-vitro 10⁻⁴ rung MODELED Computed in-chapter Arithmetic error, or a refuted ε row.
CN05-35 CN-05 μ_germline = 1.20e-8 per nt per generation (mean paternal age 29.7; +~2 mutations/yr; paternal doubling ~16.5 yr) μ_germline 1.20e-8 per nt per generation (mean paternal age 29.7; +~2 mutations/yr; paternal doubling ~16.5 yr) human trios — different denominator from ε OBSERVED-REPLICATED Kong et al. 2012, Nature 488(7412):471–475, doi:10.1038/nature11396 Independent trio study outside range at matched paternal age.
CN05-36 CN-05 n_denovo = ~73 sites/generation n_denovo ~73 sites/generation 1.2e-8 × 6.11e9 MODELED Computed in-chapter Arithmetic error; direct counts use a callable-fraction denominator.
CN05-37 CN-05 L_DNA = 1.04 (2.08) m, haploid (diploid) L_DNA 1.04 (2.08) m, haploid (diploid) 3.055e9 bp × 0.34 nm MODELED Computed in-chapter from rise + G_human Arithmetic error, or rise refuted.
CN05-38 CN-05 V_nucleus = ~113 µm³ V_nucleus ~113 µm³ sphere, d = 6 µm MODELED Computed in-chapter (geometry) Geometric error; nuclei are not spheres.
CN05-39 CN-05 f_DNA,vol = ~5.8 % of nuclear volume f_DNA,vol ~5.8 % of nuclear volume DNA as r = 1 nm cylinder, 2.08 m, in 113 µm³ MODELED Computed in-chapter Arithmetic error, or a refuted radius.
CN05-40 CN-05 packing ratio = ~3.5e5 dimensionless (linear) packing ratio ~3.5e5 dimensionless (linear) 2.08 m / 6 µm MODELED Computed in-chapter Arithmetic error.
CN05-41 CN-05 nucleosome = 146 bp @ 2.8 Å; 147 bp @ 1.9 Å; 1.65 superhelical turns; histone octamer bp nucleosome 146 bp @ 2.8 Å; 147 bp @ 1.9 Å; 1.65 superhelical turns; histone octamer bp crystal structures — different crystals, both real OBSERVED-REPLICATED Luger et al. 1997, Nature 389:251–260, doi:10.1038/38444; Richmond & Davey 2003, Nature 423:145, doi:10.1038/nature01595 A re-refinement changing the wrap length.
CN05-42 CN-05 30 nm fibre in vivo = contested — not observed in cryo-EM of vitrified cells nor in ChromEMT nm 30 nm fibre in vivo contested — not observed in cryo-EM of vitrified cells nor in ChromEMT nm in vivo interphase/mitotic chromatin OBSERVED-CONTESTED Maeshima et al. 2010, Curr Opin Cell Biol, PMID 20346642; Ou et al. 2017, Science 357:eaag0025, doi:10.1126/science.aag0025 A near-native in-vivo imaging method resolving regular 30-nm fibres.
CN05-43 CN-05 chromatin chain in vivo = disordered 5- to 24-nanometer-diameter curvilinear chain nm chromatin chain in vivo disordered 5- to 24-nanometer-diameter curvilinear chain nm ChromEMT, interphase + mitosis OBSERVED-REPLICATED Ou et al. 2017 Independent tomography contradicting the diameter distribution.
CN05-44 CN-05 loops / TADs / chromosome — no value carried loops / TADs / chromosome levels above the chain NOT-SOURCED in this pass Fetch Hi-C / loop-extrusion primaries.
CN05-45 CN-05 v_fork,ec = ~600 (classic ~1,000) bp/s v_fork,ec ~600 (classic ~1,000) bp/s E. coli, in vivo average OBSERVED-REPLICATED BNID 109251; Milo & Phillips In vivo measurement outside 400–1,000 bp/s.
CN05-46 CN-05 v_fork,euk = 4–40 (~1 kb/min) bp/s v_fork,euk 4–40 (~1 kb/min) bp/s eukaryotic replisome OBSERVED-REPLICATED BNID 104930, 104935, 104936, 104937 Outside range.
CN05-47 CN-05 t_ec = 64 min (at 600 bp/s); 38 min (at 1,000) min t_ec 64 min (at 600 bp/s); 38 min (at 1,000) min 4.6 Mbp, 1 origin, 2 forks MODELED Computed in-chapter Arithmetic error.
CN05-48 CN-05 E. coli multi-fork = >6 origins, >10 forks; doubling ~20 min < copy time E. coli multi-fork >6 origins, >10 forks; doubling ~20 min < copy time fast growth — overlapping cycles OBSERVED-REPLICATED BNID 102356; BNID 103514 A fast-growing strain with a single round per division.
CN05-49 CN-05 t_human,1origin = 4.8 years t_human,1origin 4.8 years 6.11 Gbp, 1 origin, 2 forks, 20 bp/s MODELED Computed in-chapter Arithmetic error.
CN05-50 CN-05 T_S = ~10 hours T_S ~10 hours human S phase OBSERVED-REPLICATED BNID 103742, 103741, 102204 Cell type outside range.
CN05-51 CN-05 N_origins (required) = ~4,200 (2,100–21,000 over v = 40–4 bp/s) origins N_origins (required) ~4,200 (2,100–21,000 over v = 40–4 bp/s) origins solved from G/(2vT) MODELED Computed in-chapter Arithmetic error.
CN05-52 CN-05 N_origins (measured) = 1,000–100,000 (Drosophila ~10,000) origins N_origins (measured) 1,000–100,000 (Drosophila ~10,000) origins human OBSERVED-REPLICATED BNID 107654, 109283 A measurement excluding the predicted band.
CN05-53 CN-05 t_Dmel = ~8 min per ~120 Mbp genome t_Dmel ~8 min per ~120 Mbp genome D. melanogaster embryo OBSERVED-REPLICATED BNID 101971 Outside range.
CN05-54 CN-05 codons = 64 → 61 sense + 3 stop → 20 aa; 3.05 codons/aa codons 64 → 61 sense + 3 stop → 20 aa; 3.05 codons/aa canonical code OBSERVED-REPLICATED standard; Freeland & Hurst 1998 A canonical-code recount.
CN05-55 CN-05 bits discarded = 1.61 bits/codon bits discarded 1.61 bits/codon log₂(64) − log₂(21) MODELED Computed in-chapter Arithmetic error.
CN05-56 CN-05 code optimality (unweighted) = natural code beats all but 0.02% of random codes on polar requirement (≈1 in 5,000) code optimality (unweighted) natural code beats all but 0.02% of random codes on polar requirement (≈1 in 5,000) polar-requirement metric; all single-base errors equiprobable OBSERVED-REPLICATED Haig & Hurst 1991, J Mol Evol 33(5):412–417, doi:10.1007/BF02103132, PMID 1960738 Re-run the unweighted simulation; a figure outside 0.02%.
CN05-57 CN-05 code optimality — the '1 in 10⁴' headline = P₁ ≈ 10⁻⁴ code optimality — the '1 in 10⁴' headline P₁ ≈ 10⁻⁴ a secondary restatement of Haig & Hurst, ~2× looser than their 0.02%; not a figure in Freeland & Hurst 1998, to which this chapter previously misattributed it OBSERVED-REPLICATED (as a restatement, not a primary) Koonin & Novozhilov 2009, IUBMB Life 61(2):99–111, PMID 19117371 Locate a primary reporting 10⁻⁴ directly, or retire the headline in favour of 0.02%.
CN05-58 CN-05 code optimality (weighted) = 1 in 10⁶ random codes beat it code optimality (weighted) 1 in 10⁶ random codes beat it + transition/transversion bias + mistranslation bias weighted in OBSERVED-REPLICATED Freeland & Hurst 1998, J Mol Evol 47(3):238–248, doi:10.1007/PL00006381, PMID 9732450 Re-run the simulation with the stated weightings.
CN05-59 CN-05 code = partial optimum = 'huge number of more robust codes' exist; standard code = partial optimisation of a random code on a rugged landscape code = partial optimum 'huge number of more robust codes' exist; standard code = partial optimisation of a random code on a rugged landscape OBSERVED-REPLICATED Novozhilov, Wolf & Koonin 2007, Biol Direct, PMID 17956616 A search failing to find more robust codes.
CN05-60 CN-05 reverse transcription = RNA → DNA reverse transcription RNA → DNA Rous sarcoma virus / RNA tumour viruses OBSERVED-REPLICATED Temin & Mizutani 1970, Nature 226:1211–1213, doi:10.1038/2261211a0; Baltimore 1970, Nature 226:1209–1211
CN05-61 CN-05 prion = heritable conformational information, no nucleic acid required prion heritable conformational information, no nucleic acid required scrapie agent OBSERVED-REPLICATED Prusiner 1982, Science 216:136–144, doi:10.1126/science.6801762 A nucleic acid found necessary for infectivity.
CN05-62 CN-05 genome-as-prior — no value carried genome-as-prior active-inference reading HYPOTHESIZED this chapter, as a lens Specify a measurable prior with units, then measure it.

CN-06 — Sperm: the minimal motile delivery vehicle

Source: cookbook/recipes-natura/CN-06-sperm.md · 39 rows

row_id chapter claim symbol value units scope class source falsifier
CN06-01 CN-06 u = 62 (low visc) / 65 (high visc) µm/s u 62 (low visc) / 65 (high visc) µm/s migrating human sperm, 37 °C, n = 16 / 19 OBSERVED-REPLICATED Smith et al. 2009, Cell Motil Cytoskeleton 66(4):220–236, DOI 10.1002/cm.20345 Repeat high-frame-rate imaging of the migrating cohort; a mean outside 40–90 µm/s refutes.
CN06-02 CN-06 f_beat = 23 (low visc) / 11 (high visc) Hz f_beat 23 (low visc) / 11 (high visc) Hz same cells, 37 °C; low-visc buffer vs ~0.14 Pa·s analogue OBSERVED-REPLICATED Smith et al. 2009 A frequency independent of viscosity under the same conditions.
CN06-03 CN-06 f_beat (Saggiorato) = ~20 Hz f_beat (Saggiorato) ~20 Hz human sperm, 37 °C, buffer ~0.7 mPa·s, tethered, n = 35 OBSERVED-REPLICATED Saggiorato et al. 2017, Nat Commun 8:1415, DOI 10.1038/s41467-017-01462-y As above.
CN06-04 CN-06 λ = 39 (low visc) / 18 (high visc) µm λ 39 (low visc) / 18 (high visc) µm human sperm flagellar wavelength, 37 °C OBSERVED-REPLICATED Smith et al. 2009 Outside range at stated viscosity.
CN06-05 CN-06 c_wave = 890 (low visc) / 200 (high visc) µm/s c_wave 890 (low visc) / 200 (high visc) µm/s wavespeed = f × λ OBSERVED-REPLICATED Smith et al. 2009 Recompute; c ≠ fλ under stated conditions.
CN06-06 CN-06 L_cell = ~50–60 (head 4–5, midpiece ~7–8, tail ≥45) µm L_cell ~50–60 (head 4–5, midpiece ~7–8, tail ≥45) µm derived from WHO 2021 normative morphometry criteria — what counts as a normal-form spermatozoon — not a measured distribution over a population; used as an input to Re regardless NOT-MEASURED (in this pass; the criteria are normative, not a morphometric result) WHO 2021, WHO laboratory manual…human semen, 6th ed. Fetch a primary morphometry study and print mean ± s.d. total length.
CN06-07 CN-06 L_flag = ~41 µm L_flag ~41 µm human flagellum, tethered-cell imaging OBSERVED-REPLICATED Saggiorato et al. 2017 Independent measurement >1.5× off.
CN06-08 CN-06 µ_buffer = 0.7 (0.73 ± 0.01 for HTF) mPa·s µ_buffer 0.7 (0.73 ± 0.01 for HTF) mPa·s aqueous buffer, 37 °C OBSERVED-REPLICATED Saggiorato et al. 2017 Rheometry outside range at 37 °C.
CN06-09 CN-06 µ_mucus = ~0.14 (analogue) / ~0.2 (midcycle, Day 0) / ~0.68 (Day 5) Pa·s µ_mucus ~0.14 (analogue) / ~0.2 (midcycle, Day 0) / ~0.68 (Day 5) Pa·s Maxwell fit to measured G′/G″ at ~5 Hz, 37 °C MODELED Smith et al. 2009 (rheometry + fit); mucus moduli from Wolf et al. 1977, Fertil Steril 28:47–52 A direct steady-shear viscosity of periovulatory mucus outside 0.1–1 Pa·s.
CN06-10 CN-06 Re = 4.9 × 10⁻³ (bracket 2–6 × 10⁻³) dimensionless Re 4.9 × 10⁻³ (bracket 2–6 × 10⁻³) dimensionless human sperm, ρuL/µ; ρ=10³, u=6.2e−5, L=5.5e−5, µ=7.0e−4 (SI) MODELED Computed in-chapter from Smith 2009 + Saggiorato 2017 + WHO 6th ed; regime per Purcell 1977, Am J Phys 45:3–11 Arithmetic error, or any input refuted under its stated condition.
CN06-11 CN-06 Re_mucus = ~2.6 × 10⁻⁵ dimensionless Re_mucus ~2.6 × 10⁻⁵ dimensionless ρuL/µ; ρ=10³, u = 6.5e−5 (65 µm/s — the high-viscosity migrant velocity; NOT the 6.2e−5 used for Re), L=5.5e−5, µ = 0.14 Pa·s (SI) MODELED Computed in-chapter Recompute. At u = 6.2e−5 the value is 2.4 × 10⁻⁵; the exponent is unmoved either way.
CN06-12 CN-06 d_coast = ~0.45 Å (4.5 × 10⁻¹¹ m), τ ≈ 0.7 µs m d_coast ~0.45 Å (4.5 × 10⁻¹¹ m), τ ≈ 0.7 µs m Stokes coasting, τ=m/(6πµa); V≈17 µm³, ρ_cell≈1.1×10³, a≈2 µm MODELED Computed in-chapter (inputs order-of-magnitude) Recompute; a measured coasting distance >1 nm refutes.
CN06-13 CN-06 ζ⊥/ζ∥ = ≈2 asymptotic only; ~1.5–1.8 at realistic aspect ratios. ζ⊥/ζ∥ = 2(ln(2λ/a) − 0.5)/(ln(2λ/a) + 0.5) — strictly < 2 for any real filament dimensionless ζ⊥/ζ∥ ≈2 asymptotic only; ~1.5–1.8 at realistic aspect ratios. ζ⊥/ζ∥ = 2(ln(2λ/a) − 0.5)/(ln(2λ/a) + 0.5) — strictly < 2 for any real filament dimensionless resistive-force-theory coefficient, slender filament, far from a boundary — a derived coefficient, not a measurement MODELED (slenderness is the fence) Gray & Hancock 1955, J Exp Biol 32:802–814 A slender-body or numerical computation giving a ratio outside 1.4–2.0 at flagellar aspect ratios.
CN06-14 CN-06 n_dynein = ~67,500 total; ~15,000 active/beat motors n_dynein ~67,500 total; ~15,000 active/beat motors sea-urchin sperm flagellum; active count is a hypothesis (67,500 × 2/9) OBSERVED-REPLICATED (total, cryo-ET) / HYPOTHESIZED (active fraction) Chen et al. 2015, Biophys J 109:2562–2573 Count in situ; an active fraction ≠ ~2/9.
CN06-15 CN-06 d_dynein = ~8 nm/power stroke d_dynein ~8 nm/power stroke axonemal dynein, single-molecule OBSERVED-REPLICATED Chen et al. 2015 and refs therein Different step periodicity.
CN06-16 CN-06 axoneme extension on trypsin + ATP = — (the 'five or more times original length' previously printed here is withdrawn as unsourced; secondary accounts conflict: several-fold / ~7× / nine-fold) fold of original length axoneme extension on trypsin + ATP — (the 'five or more times original length' previously printed here is withdrawn as unsourced; secondary accounts conflict: several-fold / ~7× / nine-fold) fold of original length demembranated sea-urchin axoneme, brief trypsin digestion, + ATP NOT-SOURCED Summers & Gibbons 1971, PNAS 68(12):3092–3096 — extension figure not read in this pass; Lindemann & Mitchell, Mol Biol Cell 2018 recounts the experiment and gives no figure Read S&G 1971 pp. 3092–3096 and print the extension factor.
CN06-17 CN-06 n_ATP/beat = (2.3 ± 0.2) × 10⁵ (low visc) → (3.2 ± 0.5) × 10⁵ (0.5 % MC) ATP/beat n_ATP/beat (2.3 ± 0.2) × 10⁵ (low visc) → (3.2 ± 0.5) × 10⁵ (0.5 % MC) ATP/beat demembranated sea-urchin sperm axoneme, single-cell, [ATP] = 20 µM, viscosity as stated — this quantity is not viscosity-independent OBSERVED-SINGLE (single study) Chen et al. 2015 Bulk S. purpuratus gives ~1 × 10⁵/beat — already a 2.3× discrepancy; carry it.
CN06-18 CN-06 r_ATP = (2.4 ± 0.3) × 10⁶ active; (9.2 ± 0.2) × 10⁵ inactive ATP/s r_ATP (2.4 ± 0.3) × 10⁶ active; (9.2 ± 0.2) × 10⁵ inactive ATP/s demembranated Lytechinus sperm axoneme OBSERVED-SINGLE (single study) Chen et al. 2015 Independent single-cell measurement >2× off.
CN06-19 CN-06 ε_hydro = 0.004 (low visc) → 0.013 (high visc) dimensionless ε_hydro 0.004 (low visc) → 0.013 (high visc) dimensionless demembranated sea-urchin axoneme, 20 µM ATP, buffer vs 0.5 % MC OBSERVED-SINGLE (single study — not replicated) Chen et al. 2015, Table S1 Independent replication >3× off; not transferable to intact human sperm.
CN06-20 CN-06 ε_chemo = 0.34 → 0.6 dimensionless ε_chemo 0.34 → 0.6 dimensionless as above OBSERVED-SINGLE (single study — not replicated) Chen et al. 2015 As above.
CN06-21 CN-06 ε_swim = 0.001 → 0.008 dimensionless ε_swim 0.001 → 0.008 dimensionless as above; ε_swim = ε_chemo · ε_hydro OBSERVED-SINGLE (single study — not replicated) Chen et al. 2015 As above.
CN06-22 CN-06 ε_hydro,human — no value carried ε_hydro,human dimensionless intact human spermatozoon NOT-MEASURED not sourced in this pass Measure ATP turnover + kinematics on one intact human cell.
CN06-23 CN-06 n_mito = ~50–75 (~1 mtDNA each) per cell n_mito ~50–75 (~1 mtDNA each) per cell human sperm midpiece OBSERVED-SINGLE (via review; primary count not retrieved in this pass) Hirata et al. 2002, Reprod Med Biol 1(2):41–47 Direct EM/qPCR count outside range.
CN06-24 CN-06 glycolysis vs OXPHOS = mouse: glycolysis (GAPDHS) required despite intact mitochondria; human: unsettled glycolysis vs OXPHOS mouse: glycolysis (GAPDHS) required despite intact mitochondria; human: unsettled Gapds⁻/⁻ mice infertile, sluggish, no forward progression OBSERVED-CONTESTED / species-dependent Miki et al. 2004, PNAS 101(47):16501–16506; framed vs human in Ford 2006, Hum Reprod Update 12(3):269–274 A human-sperm study settling the dominant pathway under physiological substrate.
CN06-25 CN-06 histone retention = ~5–15 % (human) vs ~1 % (mouse) % of nucleoproteins histone retention ~5–15 % (human) vs ~1 % (mouse) % of nucleoproteins sperm chromatin OBSERVED-CONTESTED (the human range is itself disputed) Balhorn 2007, Genome Biol 8(9):227 A method reconciling the spread; do not average.
CN06-26 CN-06 chromatin compaction = ~10× vs the somatic interphase nucleus; ≥6× vs mitotic chromosomes. The 'up to 20×' upper bound previously printed here is NOT-SOURCED fold chromatin compaction ~10× vs the somatic interphase nucleus; ≥6× vs mitotic chromosomes. The 'up to 20×' upper bound previously printed here is NOT-SOURCED fold protamine-packaged sperm chromatin; two distinct comparators — carry both, do not average them into one range OBSERVED-SINGLE (via review; primary comparator study not retrieved) Balhorn 2007, Genome Biol 8(9):227 Fetch the primary study that measured the ratio, name its comparator, and print it.
CN06-27 CN-06 toroid = ~50 (up to ~60) kb DNA per toroid toroid ~50 (up to ~60) kb DNA per toroid protamine–DNA toroid OBSERVED-REPLICATED Hud et al. 1995, as reviewed in Balhorn 2007; single-molecule receipt for the toroid mechanism (λ-phage DNA in an optical trap — not sperm chromatin, not a compaction ratio): Brewer, Corzett & Balhorn 1999, Science 286(5437):120–123 Structural measurement outside range.
CN06-28 CN-06 resact sensitivity = 1 bound molecule evokes a Ca²⁺ response; 50–100 saturate molecules resact sensitivity 1 bound molecule evokes a Ca²⁺ response; 50–100 saturate molecules Arbacia punctulata sperm OBSERVED-REPLICATED Kaupp et al. 2003, Nat Cell Biol 5:109–117 Single-molecule response fails to replicate.
CN06-29 CN-06 min. gradient = 0.8 fM/µm min. gradient 0.8 fM/µm A. punctulata, resact OBSERVED-SINGLE (single group — not independently replicated) Kashikar et al. 2012, J Cell Biol 198(6):1075–1091 Independent measurement >10× off.
CN06-30 CN-06 T_sample = 0.2–0.6 s T_sample 0.2–0.6 s A. punctulata, measured Ca²⁺-response latency, which the authors read as a sampling window. Equating it with Berg & Purcell's integration time T is a MODELED identification, not an observation OBSERVED-SINGLE (single group) — the latency; MODELED — its identification with T Kashikar et al. 2012 Independent measurement >10× off. For the T identification: show the latency scales with chemoattractant concentration as a counting-limited T predicts.
CN06-31 CN-06 slope threshold = ~2.6–3 × 10⁻³ µm⁻¹ (relative steepness) slope threshold ~2.6–3 × 10⁻³ µm⁻¹ (relative steepness) S. purpuratus, speract, ~10⁻⁹ M regime; a predicted detection limit, not a measured threshold MODELED Ramírez-Gómez et al. 2020, eLife 9:e50532 (theoretical detection-limit derivation) A measured chemotactic response below the predicted slope threshold, or a measured threshold >3× off the prediction.
CN06-32 CN-06 helix = r = 8.4 ± 3.1 µm; period 0.38 ± 0.07 s; pitch 47.6 ± 9.1 µm; u = 200 ± 57 µm/s helix r = 8.4 ± 3.1 µm; period 0.38 ± 0.07 s; pitch 47.6 ± 9.1 µm; u = 200 ± 57 µm/s A. punctulata, free 3-D swimming far from boundaries with NO gradient present (the unstimulated baseline), holographic tracking, n = 20, 1 s tracks OBSERVED-REPLICATED Jikeli et al. 2015, Nat Commun 6:7985, DOI 10.1038/ncomms8985 Independent 3-D tracking outside stated s.d.
CN06-33 CN-06 human chemotaxis = progesterone → CatSper → Ca²⁺ influx replicated; progesterone as the chemoattractant disputed human chemotaxis progesterone → CatSper → Ca²⁺ influx replicated; progesterone as the chemoattractant disputed human sperm OBSERVED-CONTESTED Strünker et al. 2011, Nature 471:382–386; Lishko et al. 2011, Nature 471:387–391; contested per charcoal-stripping studies A pre-registered in-vivo-relevant assay settling it.
CN06-34 CN-06 thermotaxis = ~2 °C between the isthmus (reservoir) and the isthmic–ampullary junction (fertilisation site) — rabbit, anatomical, no distance attached. The 'over 20 mm' and '>50 % accumulate warm-side' previously printed here are withdrawn: NOT-SOURCED thermotaxis ~2 °C between the isthmus (reservoir) and the isthmic–ampullary junction (fertilisation site) — rabbit, anatomical, no distance attached. The 'over 20 mm' and '>50 % accumulate warm-side' previously printed here are withdrawn: NOT-SOURCED capacitated mammalian sperm — questioned (convection confound) OBSERVED-CONTESTED (the ~2 °C anatomical difference) / NOT-SOURCED (the assay gradient length and the accumulation fraction) Bahat et al. 2003, Nat Med 9:149–150; questioned in Miki & Clapham 2013, Curr Biol 23:443–452 Read Bahat et al. 2003's methods and print the chamber gradient in °C/mm and the accumulation fraction; separately, a convection-controlled replication.
CN06-35 CN-06 N_ejac = median ~255 × 10⁶; 5th-centile 39 × 10⁶ sperm/ejaculate N_ejac median ~255 × 10⁶; 5th-centile 39 × 10⁶ sperm/ejaculate WHO reference population (TTP ≤ 12 months) OBSERVED-REPLICATED Cooper et al. 2010, Hum Reprod Update 16(3):231–245; WHO 2021, 6th ed. Re-derive from the reference cohort.
CN06-36 CN-06 N_tube = median 251 (range 79–1,386) sperm in both Fallopian tubes N_tube median 251 (range 79–1,386) sperm in both Fallopian tubes 10 parous women, ~18 h post-insemination, tubes ligated + flushed OBSERVED-SINGLE (single study, n = 10 — not replicated) Williams et al. 1993, Hum Reprod 8(12):2019–2026 An independent flush study giving a median outside ~50–2,000.
CN06-37 CN-06 attrition = ~10⁶-fold (10⁸ → 10²) fold attrition ~10⁶-fold (10⁸ → 10²) fold ejaculate → tube MODELED Computed in-chapter from the two rows above Either input row refuted.
CN06-38 CN-06 acrosin = KO mice fertile; KO hamsters completely infertile (zona-penetration defect; zona-free oocytes all fertilised) acrosin KO mice fertile; KO hamsters completely infertile (zona-penetration defect; zona-free oocytes all fertilised) targeted mutants OBSERVED-REPLICATED Hirose et al. 2020, PNAS 117(5):2513–2518, DOI 10.1073/pnas.1917595117 (citing Baba et al. 1994 for the mouse) A third species contradicting both.
CN06-39 CN-06 δc/c scaling = ∝ (D·a·c·T)^(−1/2) dimensionless δc/c scaling ∝ (D·a·c·T)^(−1/2) dimensionless diffusion-limited chemoreception — see NA-08 for the contested prefactor OBSERVED-REPLICATED (as a scaling) Berg & Purcell 1977, Biophys J 20:193–219 A sensor beating the −1/2 exponent.

CN-07 — Ants: the colony as a Markov blanket

Source: cookbook/recipes-natura/CN-07-ants.md · 38 rows

row_id chapter claim symbol value units scope class source falsifier
CN07-01 CN-07 T_colony = ~25 years T_colony ~25 years Pogonomyrmex barbatus, single-queen founding OBSERVED-REPLICATED Gordon et al. 2011, Behav Ecol 22(2):429–435, quoting Gordon 1991 Long-term census showing mean colony persistence outside ~15–30 yr.
CN07-02 CN-07 T_worker,ext = ≤ 33 (the paper's summary sentence, covering both spp.: 'about 30') days after marking T_worker,ext ≤ 33 (the paper's summary sentence, covering both spp.: 'about 30') days after marking P. barbatus exterior workers, field, 3,521 marked across 38 mature colonies, Rodeo NM, Jul–Aug 1987, checked once daily; max 33 d = a nest-maintenance worker OBSERVED-REPLICATED Gordon & Hölldobler 1987, Psyche 94:341–346 Authors name two biases (paint wear-off; marked ants alive inside) that would underestimate — a mark–recapture design controlling both, finding >>33 d, moves this row.
CN07-03 CN-07 T_worker,ext (P. rugosus) = ≥ 27 — marked foragers still observed on the last day checked days after marking T_worker,ext (P. rugosus) ≥ 27 — marked foragers still observed on the last day checked days after marking P. rugosus foragers — a separate and far smaller study: 173 foragers, 1 colony, Rodeo NM, Jul–Aug 1986, checked twice daily on 27 subsequent days OBSERVED-SINGLE (one colony, one season — not replicated; never merge with the P. barbatus row above) Gordon & Hölldobler 1987 Right-censored at day 27 by the study design, not by the ants — extend the checking window and this number moves.
CN07-04 CN-07 T_forager = 14 days (mean life expectancy) T_forager 14 days (mean life expectancy) P. owyheei foragers and defenders, field — not foragers alone; single study, not independently replicated OBSERVED-CONTESTED — as cited in Gordon & Hölldobler 1987; primary NOT-READ in this pass (M22) Porter & Jorgensen 1981, Behav Ecol Sociobiol 9:247–256 Read the primary; an independent field estimate >2× off moves the row.
CN07-05 CN-07 t½_forager = 4.2 days (half-life, marked foragers) t½_forager 4.2 days (half-life, marked foragers) Cataglyphis bicolor, Southern Tunisia; constant 16.4%/day loss; single study, not independently replicated OBSERVED-SINGLE — primary read directly in this pass. The widely-cited secondary is wrong: Gordon & Hölldobler 1987 print a '6 day half-life', which is the mean life expectancy wearing a half-life label Schmid-Hempel & Schmid-Hempel 1984, Ins Soc 31:345–360, DOI 10.1007/BF02223652 An independent marked-forager census in C. bicolor returning a half-life >2× off.
CN07-06 CN-07 E[life]_forager = 6.1 days (mean life expectancy) E[life]_forager 6.1 days (mean life expectancy) C. bicolor, Southern Tunisia, same study and same 16.4%/day loss; single study, not independently replicated OBSERVED-SINGLE — primary read directly. This is the number the secondary literature misprints as a 6-day 'half-life' Schmid-Hempel & Schmid-Hempel 1984 As above.
CN07-07 CN-07 T_worker,total = 'about a year' T_worker,total 'about a year' P. barbatus whole worker lifespan NOT-SOURCED in this pass appears in Gordon's review literature; not read here Read Gordon 2024, Phil Trans R Soc B 379:20230332, and source it. Do not conflate with T_worker,ext.
CN07-08 CN-07 N_colony = 10,000–12,000 (young: 2,000–10,000) workers N_colony 10,000–12,000 (young: 2,000–10,000) workers P. barbatus at reproductive age (5 yr) OBSERVED-REPLICATED Gordon et al. 2011 Census outside range for mature colonies.
CN07-09 CN-07 Δforage(2→5 yr) = ×2 dimensionless Δforage(2→5 yr) ×2 dimensionless P. barbatus foraging numbers, colony ages 2→5 yr OBSERVED-REPLICATED Gordon et al. 2011 Age-controlled census finding no change.
CN07-10 CN-07 colony-age stability = older (>5 yr) more stable than young (2 yr) colony-age stability older (>5 yr) more stable than young (2 yr) P. barbatus, behavioural flexibility + intraspecific conflict OBSERVED-REPLICATED Gordon 1991, Am Nat 138(2):379–411 Age-controlled replication finding no age effect.
CN07-11 CN-07 parent→offspring transmissibility of foraging restraint = Gordon's own hedge, carried: sensitivity to the conditions in which to reduce foraging 'may be transmissible' from parent to offspring colony. No h² is reported. The underlying association (dry-year restraint ↔ greater lifetime reproductive success) is measured parent→offspring transmissibility of foraging restraint Gordon's own hedge, carried: sensitivity to the conditions in which to reduce foraging 'may be transmissible' from parent to offspring colony. No h² is reported. The underlying association (dry-year restraint ↔ greater lifetime reproductive success) is measured P. barbatus, a single 27-yr study (duration second-hand), one population, one observer, one site — not independently replicated HYPOTHESIZED (the transmissibility) over an OBSERVED single-study association. Not OBSERVED-REPLICATED: long duration is not replication Gordon 2013, Nature 498:91–93 — plus Addendum: Gordon 2017, Nature 542(7640):260, NOT-READ in this pass A quantitative h² estimate, or a cross-fostering / founding design separating genetic from environmental transmission; and read the 2017 Addendum.
CN07-12 CN-07 N_brain (IF) = 7.02 × 10⁴ ± 2.4 × 10⁴ (s) brain nuclei N_brain (IF) 7.02 × 10⁴ ± 2.4 × 10⁴ (s) brain nuclei Novomessor spp. (desert ant), isotropic fractionator — the method of the 32 spp. / 7 superfamilies survey. The SD is ~⅓ of the mean and travels with the value OBSERVED-REPLICATED Godfrey, Swartzlander & Gronenberg 2021, Proc R Soc B 288:20210199 Independent count >2× off under the same method. Not a Pogonomyrmex number — do not transfer across genera.
CN07-13 CN-07 N_brain (sectioned) = ≈ 9 × 10⁴ brain nuclei N_brain (sectioned) ≈ 9 × 10⁴ brain nuclei Novomessor spp., sectioned brains — the paper's method-validation cross-check on the IF adaptation, not an IF count; agrees with the IF value within ~1 SD OBSERVED-REPLICATED Godfrey et al. 2021 As above. Never print this figure under the IF label.
CN07-14 CN-07 ants vs bees — brain mass = ants (Formicoidea) smaller-brained than predicted for body mass vs bees and related wasps, p < 0.001 ants vs bees — brain mass ants (Formicoidea) smaller-brained than predicted for body mass vs bees and related wasps, p < 0.001 post hoc comparison of Apoidea versus Formicoidea — not a test of ants against the fitted Hymenoptera allometry, and a brain-mass result, not a nuclei result OBSERVED-REPLICATED Godfrey et al. 2021 An independent sample recovering no Apoidea/Formicoidea difference.
CN07-15 CN-07 ants vs bees — brain-mass-controlled nuclei = ants x̄ = 11.8 (s = 0.162) < Apoidea x̄ = 13.0 (s = 0.11), p < 0.001; also < Pompiloidea (p = 0.0142) and Vespoidea (p = 0.0016) log-transformed nuclei number ants vs bees — brain-mass-controlled nuclei ants x̄ = 11.8 (s = 0.162) < Apoidea x̄ = 13.0 (s = 0.11), p < 0.001; also < Pompiloidea (p = 0.0142) and Vespoidea (p = 0.0016) log-transformed nuclei number a separate contrast from the brain-mass row above — different quantity, different test OBSERVED-REPLICATED Godfrey et al. 2021 As above.
CN07-16 CN-07 N_brain (P. barbatus) — no value carried N_brain (P. barbatus) brain nuclei the genus this chapter's colony rows are about NOT-MEASURED not located in this pass Count it, or cite one.
CN07-17 CN-07 r (double bridge) = 1.0 → 12/26 (ns); 1.4 → 15/18; 2.0 → 14/14 trials selecting short branch r (double bridge) 1.0 → 12/26 (ns); 1.4 → 15/18; 2.0 → 14/14 trials selecting short branch Iridomyrmex humilis (= Linepithema humile), 11 colonies, 30° branches, counted 30–40 min OBSERVED-REPLICATED Goss et al. 1989, Naturwissenschaften 76:579–581 Replication at r = 2 with no significant short-branch selection.
CN07-18 CN-07 r = 2, short added late = 2/18 — colony cannot switch trials r = 2, short added late 2/18 — colony cannot switch trials same, short branch added after long trail established OBSERVED-REPLICATED Goss et al. 1989 A replication showing switching; would refute the trap.
CN07-19 CN-07 dark control = 11/14 experiments >80% traffic on short dark control 11/14 experiments >80% traffic on short r = 2, 7 colonies, red light OBSERVED-REPLICATED Goss et al. 1989 Printed adjacent to the lit r=2 (n=14) set; which set the 11/14 summarises is ambiguous in the text — recorded as printed.
CN07-20 CN-07 P_s,j = (20+S)² / [(20+S)² + (20+L)²] probability P_s,j (20+S)² / [(20+S)² + (20+L)²] probability branch-choice function; n = 2, k = 20 MODELED Deneubourg et al. 1990, J Insect Behav 3:159–168; used in Goss et al. 1989 Re-fit to fresh choice data yielding n ≠ 2.
CN07-21 CN-07 τ_delay = 20 (short) vs 20r (long) s τ_delay 20 (short) vs 20r (long) s traverse time; drives the differential-path-length effect MODELED Goss et al. 1989, Eqs. 1–2 Show short-branch selection with the delay removed.
CN07-22 CN-07 evaporation in the 1989 model = absent evaporation in the 1989 model absent Goss et al. explicitly ignore it (experiment timescale ≈ pheromone mean lifetime) OBSERVED-SINGLE (textual) Goss et al. 1989 Read the paper.
CN07-23 CN-07 τ_pheromone = ~30 min (mean lifetime) τ_pheromone ~30 min (mean lifetime) I. humilis, as cited by Goss et al. OBSERVED-CONTESTED Goss et al. 1989 citing Van Vorhis Key & Baker 1982, J Chem Ecol 8(1):3–14 The primary reports activity loss within 2 h — reconcile; do not average.
CN07-24 CN-07 release rate = 0.25 ± 0.10 pg·cm⁻¹·s⁻¹ release rate 0.25 ± 0.10 pg·cm⁻¹·s⁻¹ (Z)-9-hexadecenal from filter-paper trails, I. humilis OBSERVED-REPLICATED Van Vorhis Key & Baker 1982 Independent measurement >2× off.
CN07-25 CN-07 t_decay,attract = 33 min (95% CI of fitted curve reaching no-effect) t_decay,attract 33 min (95% CI of fitted curve reaching no-effect) Monomorium pharaonis, ECF paper, 10 colonies (~1,500 workers) OBSERVED-REPLICATED Robinson et al. 2008, Insectes Sociaux 55:246–251 Replication on the same substrate outside CI.
CN07-26 CN-07 t_decay,repel = 78 min (same criterion) t_decay,repel 78 min (same criterion) M. pharaonis, repellent 'no entry' pheromone, 11 qualifying trials OBSERVED-REPLICATED Robinson et al. 2008 As above.
CN07-27 CN-07 initial effect = 25 (attractive) vs 48 (repellent) % above control initial effect 25 (attractive) vs 48 (repellent) % above control M. pharaonis OBSERVED-REPLICATED Robinson et al. 2008 As above.
CN07-28 CN-07 substrate dependence = decay rate differs by substrate (polycarbonate vs newspaper) substrate dependence decay rate differs by substrate (polycarbonate vs newspaper) M. pharaonis OBSERVED-REPLICATED (values NOT-READ here) Jeanson, Ratnieks & Deneubourg 2003, Physiol Entomol 28:192–198 Read the paper and print the constants.
CN07-29 CN-07 b_metabolic = 0.81 exponent, colony mass b_metabolic 0.81 exponent, colony mass 168 spp. compiled; n = 12 colonies in the fit; B₀-corrected, active colonies OBSERVED-CONTESTED Hou et al. 2010, PNAS 107(8):3634–3638 — 95% CI 0.55–1.08, r²=0.82 The CI includes 1.0 — this row does not establish sublinearity. A larger-n fit whose CI excludes either 0.75 or 1.0 settles it.
CN07-30 CN-07 b_production = 0.83 exponent, colony mass b_production 0.83 exponent, colony mass B₀-corrected biomass production, n = 16 colonies OBSERVED-REPLICATED Hou et al. 2010 — 95% CI 0.68–0.98, r²=0.91 CI excludes 1.0; a replication whose CI includes 1.0 moves it.
CN07-31 CN-07 b_lifespan = 0.36 (0.27–0.45) combined; 0.24 (0.14–0.34) colonies alone exponent b_lifespan 0.36 (0.27–0.45) combined; 0.24 (0.14–0.34) colonies alone exponent queen lifespan as colony lifespan proxy; 38 colonies OBSERVED-REPLICATED Hou et al. 2010 The combined slope is an intercept artefact (4–5× offset) — do not quote 0.36 as the colony exponent.
CN07-32 CN-07 b_metabolic,intra = 0.75 (isolated worker groups: isometric) exponent, colony mass b_metabolic,intra 0.75 (isolated worker groups: isometric) exponent, colony mass Pogonomyrmex californicus, whole colonies, intraspecific OBSERVED-REPLICATED Waters, Holbrook, Fewell & Harrison 2010, Am Nat 176(4):501–510 (CI not given in abstract — NOT-READ here) Replication finding isometry in intact colonies.
CN07-33 CN-07 b divergence = herbivorous 0.69 (0.58–0.79); predaceous 0.81 (0.74–0.89); monomorphic 0.75 (0.68–0.82); polymorphic 0.89 (0.79–1.00) exponent b divergence herbivorous 0.69 (0.58–0.79); predaceous 0.81 (0.74–0.89); monomorphic 0.75 (0.68–0.82); polymorphic 0.89 (0.79–1.00) exponent 51 ant species OBSERVED-REPLICATED Pequeno & Glazier 2025, J Anim Ecol 94(6):1285–1293 A phylogenetically-controlled reanalysis recovering one exponent.
CN07-34 CN-07 colony mass range = 0.0017 → 3,850 g colony mass range 0.0017 → 3,850 g Solenopsis morphospecies → Macrotermes bellicosus OBSERVED-REPLICATED Hou et al. 2010
CN07-35 CN-07 R (haplodiploid) = 3/4 (full sisters) vs 1/2 (mother–daughter) relatedness R (haplodiploid) 3/4 (full sisters) vs 1/2 (mother–daughter) relatedness Hymenoptera MODELED (a genetic identity, not a measurement) Hamilton 1964, J Theor Biol 7:1–16; recited in Nowak et al. 2010 Arithmetic.
CN07-36 CN-07 eusociality origin = disputed eusociality origin disputed inclusive fitness vs NTW's queen-extension model OBSERVED-CONTESTED Nowak, Tarnita & Wilson 2010, Nature 466:1057–1062 vs Abbot et al. 2011, Nature 471:E1–E4 (137 authors, 103 affiliations — counted) A measurement both camps pre-agree discriminates them. None is on offer.
CN07-37 CN-07 sex-ratio variance explained = up to 96 (across-spp.) / 66 (within-spp.) vs 5.4 (field average) % sex-ratio variance explained up to 96 (across-spp.) / 66 (within-spp.) vs 5.4 (field average) % Abbot et al.'s quantitative defence of inclusive fitness OBSERVED-CONTESTED Abbot et al. 2011 Reanalysis of the cited sex-allocation corpus.
CN07-38 CN-07 colony conditional independence — no value carried colony conditional independence p(μ,η | s,a) = p(μ|s,a)·p(η|s,a) for any ant colony NOT-MEASURED not measured by anyone, in this pass or elsewhere located Measure it. Until then the colony blanket is a Friston blanket (Bruineberg et al. 2022, BBS 45:e183).

CN-08 — Dinosaurs: the scaling limits of a land animal, and how to measure the dead

Source: cookbook/recipes-natura/CN-08-dinosaurs.md · 56 rows

row_id chapter claim symbol value units scope class source falsifier
CN08-01 CN-08 σ ∝ L = stress grows linearly with length σ ∝ L stress grows linearly with length geometric scaling of any solid MODELED Galileo 1638, Discorsi (Two New Sciences); arithmetic shown in-chapter A geometrically scaled structure whose bone stress does not rise with L.
CN08-02 CN-08 b_geom = 1.0 dimensionless b_geom 1.0 dimensionless predicted length-vs-circumference exponent, geometric similarity MODELED Kilbourne & Makovicky 2010, J Anat, Table 8 Derivation error.
CN08-03 CN-08 b_elastic = 0.67 dimensionless b_elastic 0.67 dimensionless elastic similarity (L ∝ D^(2/3)); attributed to McMahon 1975a MODELED Kilbourne & Makovicky 2010, Table 8 Derivation error.
CN08-04 CN-08 b_stress = 0.5 dimensionless b_stress 0.5 dimensionless static stress similarity MODELED Kilbourne & Makovicky 2010, Table 8 Derivation error.
CN08-05 CN-08 b_fem,Trex = 0.5341 — 95% CI 0.04159–0.9718 dimensionless b_fem,Trex 0.5341 — 95% CI 0.04159–0.9718 dimensionless T. rex, femur, ontogenetic, RMA log L vs log C — CI contains static-stress (0.5), elastic (0.67) and nears geometric (1.0): discriminates among NONE; carries no contrast with any other taxon OBSERVED-SINGLE (one growth series, one study; CI spans the model space — downgraded from OBSERVED-REPLICATED) Kilbourne & Makovicky 2010, J Anat, Table 3 Re-measure the growth series; RMA slope or CI outside the published 0.04159–0.9718.
CN08-06 CN-08 b_fem,Allo = 0.82 dimensionless b_fem,Allo 0.82 dimensionless Allosaurus fragilis, femur, ontogenetic OBSERVED-REPLICATED Kilbourne & Makovicky 2010 As above.
CN08-07 CN-08 b_fem,sauropodomorph = ~1.0 (Massospondylus 0.81) dimensionless b_fem,sauropodomorph ~1.0 (Massospondylus 0.81) dimensionless sauropodomorphs, femur, ontogenetic OBSERVED-REPLICATED Kilbourne & Makovicky 2010 As above.
CN08-08 CN-08 b_fem,hadrosaur = 1.05 (Maiasaura); 1.094 (Hypacrosaurus, 95% CI 1.072–1.113) dimensionless b_fem,hadrosaur 1.05 (Maiasaura); 1.094 (Hypacrosaurus, 95% CI 1.072–1.113) dimensionless hadrosaurids, femur, ontogenetic — tight CI excludes every standard model from below; this is the section's real signal, and it stands alone without the T. rex row OBSERVED-REPLICATED Kilbourne & Makovicky 2010, Table 3 Re-measure; slope or CI overlapping 1.0.
CN08-09 CN-08 b_fem,interspecific = 0.83 (tibia 0.78; MT III 0.80) dimensionless b_fem,interspecific 0.83 (tibia 0.78; MT III 0.80) dimensionless interspecific, non-avian dinosaurs — do not conflate with ontogenetic OBSERVED-REPLICATED Carrano, as reported by Kilbourne & Makovicky 2010 Fetch Carrano primary; femoral exponent outside ~0.83 ± 0.05.
CN08-10 CN-08 M_adult,Trex,published = 6,000–8,000; 'Sue' perhaps ~9,500 kg M_adult,Trex,published 6,000–8,000; 'Sue' perhaps ~9,500 kg adult T. rex — the authors' own stated conclusion OBSERVED-CONTESTED Hutchinson et al. 2011, PLoS ONE 6(10):e26037, abstract An independent volumetric study concluding outside this band.
CN08-11 CN-08 M_Trex,PersonsCurrie = 3,800–4,500 kg M_Trex,PersonsCurrie 3,800–4,500 kg mass range assumed as an INPUT for the genus Tyrannosaurus by Persons & Currie — not an estimate of PR2081, not a scaling-equation output for any specimen, and not admissible as the low end of Sue's envelope OBSERVED-CONTESTED reported (and treated as too small) by Hutchinson et al. 2011 Fetch Persons & Currie; establish what the range was derived from and at what scope.
CN08-12 CN-08 M(PR2081)_min = 9,502 kg M(PR2081)_min 9,502 kg T. rex 'Sue', volumetric minimal model — authors' preferred region OBSERVED-CONTESTED Hutchinson et al. 2011, Table 6 Independent volumetric reconstruction outside ~8,000–11,000 kg.
CN08-13 CN-08 M(PR2081)_max = 18,489 kg M(PR2081)_max 18,489 kg T. rex 'Sue', volumetric maximal model — authors judge 'less plausible' OBSERVED-CONTESTED Hutchinson et al. 2011, Table 6 As above.
CN08-14 CN-08 M(PR2081)_spread = ~1.95× (9,502 → 18,489) dimensionless M(PR2081)_spread ~1.95× (9,502 → 18,489) dimensionless minimal-to-maximal envelope; same specimen, same study, same bones — this is the headline MODELED Computed in-chapter from the two rows above Arithmetic error.
CN08-15 CN-08 M_adults_Trex = minimal models 5,777–9,502; maximal models 10,768–18,489 kg M_adults_Trex minimal models 5,777–9,502; maximal models 10,768–18,489 kg four adult T. rex, min/max per specimen: CM 9380 = 7,394/14,564; FMNH PR2081 = 9,502/18,489; BHI 3033 = 5,934/10,837; MOR 555 = 5,777/10,768 OBSERVED-CONTESTED Hutchinson et al. 2011, Table 6 Independent volumetric reconstruction of any listed specimen outside its stated pair.
CN08-16 CN-08 C&E-2012 coefficients — no value carried C&E-2012 coefficients Campione & Evans 2012 regression constants + PPE NOT-SOURCED BMC Biology 10:60 — primary text not retrievable in this pass Open the primary; print the coefficients.
CN08-17 CN-08 u (Alexander) = 0.25·g^0.5·λ^1.67·h^−1.17 m·s⁻¹ u (Alexander) 0.25·g^0.5·λ^1.67·h^−1.17 m·s⁻¹ bipedal trackway speed MODELED Alexander 1976, Nature 261:129–130; equation as reproduced verbatim by Prescott et al. 2025 See the Prescott row.
CN08-18 CN-08 h from track = h ≈ 4 × footprint length m h from track h ≈ 4 × footprint length m Alexander's hip-height rule — the weak link MODELED Alexander 1976 See the Prescott row.
CN08-19 CN-08 u_example = 2.28 (≈8.2 km/h) m·s⁻¹ u_example 2.28 (≈8.2 km/h) m·s⁻¹ FL=0.60 m → h=2.40 m, λ=3.50 m — illustrative inputs, not a real trackway MODELED Computed in-chapter Arithmetic error.
CN08-20 CN-08 λ/h_example = 1.46 dimensionless λ/h_example 1.46 dimensionless same; <2.0 conventional walking threshold MODELED Computed in-chapter; thresholds via secondary summary Threshold convention refuted.
CN08-21 CN-08 Fr_example = 0.22 dimensionless Fr_example 0.22 dimensionless Fr = u²/(gh), convention stated MODELED Computed in-chapter Arithmetic error.
CN08-22 CN-08 Alexander↔Froude identity = 0.25·g^0.5·λ^1.67·h^−1.17 ⟺ λ/h = 2.3·Fr^0.3 Alexander↔Froude identity 0.25·g^0.5·λ^1.67·h^−1.17 ⟺ λ/h = 2.3·Fr^0.3 5/3=1.67; 1/2−5/3=−1.17; 2.3^(−5/3)=0.2495≈0.25 MODELED Algebra computed in-chapter — checkable in a minute Redo the algebra.
CN08-23 CN-08 — its attribution — no value carried — its attribution that Alexander's constants came from Alexander & Jayes' fit NOT-SOURCED Alexander & Jayes 1983, J Zool, DOI 10.1111/j.1469-7998.1983.tb04266.x — not retrieved Open either primary.
CN08-24 CN-08 u_measured,guineafowl = 0.04–0.97 (mean 0.29) m·s⁻¹ u_measured,guineafowl 0.04–0.97 (mean 0.29) m·s⁻¹ two helmeted guineafowl (Numida meleagris), n=2 individuals, 20 trials, mud of varying consistency, high-speed video + photogrammetry OBSERVED-SINGLE (single study, n=2, one species — downgraded from OBSERVED-REPLICATED) Prescott et al. 2025, Biol Lett, DOI 10.1098/rsbl.2025.0191 Repeat across other taxa, body sizes, grain sizes and foot morphologies — the authors' own request.
CN08-25 CN-08 u_calc,guineafowl = 0.17–1.84 (mean 0.61) m·s⁻¹ u_calc,guineafowl 0.17–1.84 (mean 0.61) m·s⁻¹ Alexander's equation on the same two birds' tracks OBSERVED-SINGLE (single study, n=2, one species) Prescott et al. 2025 As above.
CN08-26 CN-08 u_calc/u_meas = 1.17–4.74× dimensionless u_calc/u_meas 1.17–4.74× dimensionless systematic overestimate; worst at slow speed — on mud, n=2 guineafowl only; authors allow coarser sediment (sand) 'fit Alexander's formula more closely as the pull effect would be less pronounced' OBSERVED-SINGLE (single study, n=2, one species) Prescott et al. 2025 A trial recovering ratio ≈1.0 on compliant substrate; or a sand trial fitting Alexander, which the authors flag as possible.
CN08-27 CN-08 h error source = 4×track = 26 cm; skeletal = 25.8 cm; functional mid-stance = 18–20 cm cm h error source 4×track = 26 cm; skeletal = 25.8 cm; functional mid-stance = 18–20 cm cm same two guineafowl; the rule predicts anatomy well, mechanics badly OBSERVED-SINGLE (single study, n=2, one species) Prescott et al. 2025 Show functional ≈ skeletal hip height in a walking biped.
CN08-28 CN-08 u_Alexander,1976 = ~1.0–3.6 m·s⁻¹ u_Alexander,1976 ~1.0–3.6 m·s⁻¹ Alexander's original dinosaur estimates OBSERVED-CONTESTED (via abstract summary; primary not retrieved) Alexander 1976 Open the primary; re-read as upper bounds per Prescott et al. 2025.
CN08-29 CN-08 Flow-through lung = air sacs + thoracic skeleton consistent with unidirectional flow Flow-through lung air sacs + thoracic skeleton consistent with unidirectional flow Majungatholus atopus, exceptional specimen OBSERVED-REPLICATED O'Connor & Claessens 2005, Nature 436(7048):253–256, DOI 10.1038/nature03716 A theropod with the diagnostic foramina but no air-sac-consistent thorax.
CN08-30 CN-08 Pneumatic correlates = vertebral laminae/fossae/chambers = diverticula of cervical & abdominal air sacs Pneumatic correlates vertebral laminae/fossae/chambers = diverticula of cervical & abdominal air sacs sauropods; bird ontogeny ↔ sauropod evolution parallel OBSERVED-REPLICATED Wedel 2003, Paleobiology 29(2):243–255 Bones hollow in non-predicted places, or solid in predicted ones.
CN08-31 CN-08 ASP = ~50–60%, up to 79% (Sauroposeidon) % vertebral volume as air ASP ~50–60%, up to 79% (Sauroposeidon) % vertebral volume as air adult neosauropod cervicals OBSERVED-REPLICATED Wedel 2005, as reported by Schwarz-Wings et al. 2009, Proc R Soc B 277(1678):11–17 (they cite it to Wedel; they measured no Sauroposeidon and generated no ASP data — do not name the quoter as the source) Re-measure Wedel's CT dataset; ASP outside range.
CN08-32 CN-08 ASP (2nd) = 0.50–0.70; specific gravity to 0.2 (vs compact bone 1.8–2.0) dimensionless ASP (2nd) 0.50–0.70; specific gravity to 0.2 (vs compact bone 1.8–2.0) dimensionless sauropod cervicals OBSERVED-REPLICATED Taylor & Wedel 2013, PeerJ 1:e36, DOI 10.7717/peerj.36 As above.
CN08-33 CN-08 Stress field = vertebral interior 'nearly stress free'; bone resorbed where unloaded Stress field vertebral interior 'nearly stress free'; bone resorbed where unloaded FEA of exactly two vertebrae: undetermined diplodocid mid-cervical; Brachiosaurus C3 — this, and only this, is Schwarz-Wings et al.'s own contribution MODELED Schwarz-Wings et al. 2009 FEA showing high interior stress.
CN08-34 CN-08 T_body,sauropod = 36–38 °C T_body,sauropod 36–38 °C large Jurassic sauropod teeth, clumped-isotope (¹³C–¹⁸O) OBSERVED-REPLICATED Eagle et al. 2011, Science 333(6041):443–445, DOI 10.1126/science.1206196 Independent thermometry outside range.
CN08-35 CN-08 ΔT_model = 4–7 °C lower than predicted °C ΔT_model 4–7 °C lower than predicted °C measured vs mass-scaling body-temperature model — model partly falsified OBSERVED-REPLICATED Eagle et al. 2011 Re-run the scaling model.
CN08-36 CN-08 LAGs = cyclical growth is universal in homoeothermic endotherms LAGs cyclical growth is universal in homoeothermic endotherms global survey, wild ruminants OBSERVED-REPLICATED Köhler et al. 2012, Nature 487:358–361, DOI 10.1038/nature11264 An endotherm survey finding no LAGs.
CN08-37 CN-08 Dinosaur metabolic rates = high; endothermy inferred ancestral to Ornithodira Dinosaur metabolic rates high; endothermy inferred ancestral to Ornithodira Raman/FTIR lipoxidation signals in bone OBSERVED-CONTESTED Wiemann et al. 2022, Nature 606:522–526, DOI 10.1038/s41586-022-04770-6 See the contest row.
CN08-38 CN-08 — the contest = one intensity value ↔ metabolic rates differing ~5×; ancestral inference unsupported — the contest one intensity value ↔ metabolic rates differing ~5×; ancestral inference unsupported Matters Arising comment; calibration gap for gigantothermic mesotherms — both numbers NOT-VERIFIED against the primary (paywalled, 2 attempts); carried as the commenters' stated position OBSERVED-CONTESTED Motani, Gold, Carlson & Vermeij 2023, Nature 621(7977):E1–E3 (Matters Arising), DOI 10.1038/s41586-023-06411-y; reply Wiemann et al. 2023, Nature 621:E4–E6 A calibration collapsing the 5× band — and, first: open the primary and check the 5× figure itself.
CN08-39 CN-08 Gigantothermy = leatherback >900 kg holds ~25–30 °C core in ~7 °C water kg, °C Gigantothermy leatherback >900 kg holds ~25–30 °C core in ~7 °C water kg, °C Dermochelys coriacea OBSERVED-REPLICATED (figures via secondary summary in this pass) Paladino, O'Connor & Spotila 1990, Nature 344:858–860 Open the primary; re-measure core temp.
CN08-40 CN-08 L_neck,max = ~15.1 m L_neck,max ~15.1 m Mamenchisaurus sinocanadorum; >6× giraffe OBSERVED-CONTESTED Moore et al. 2023, J Syst Palaeontol 21(1), DOI 10.1080/14772019.2023.2171818 New cervical material; note 2013 estimate was ~12 m.
CN08-41 CN-08 L_neck,Supersaurus = ~15 m L_neck,Supersaurus ~15 m Supersaurus OBSERVED-CONTESTED Taylor & Wedel 2013, PeerJ 1:e36 As above.
CN08-42 CN-08 L_neck,giraffe = 2.4 m L_neck,giraffe 2.4 m world-record bull giraffe OBSERVED-REPLICATED Taylor & Wedel 2013 A longer measured giraffe neck.
CN08-43 CN-08 n_cervical = sauropods 13–17 (19 in M. hochuanensis); mammals exactly 7 (sloths/sirenians excepted) count n_cervical sauropods 13–17 (19 in M. hochuanensis); mammals exactly 7 (sloths/sirenians excepted) count OBSERVED-REPLICATED Taylor & Wedel 2013 A mammal outside the exceptions with ≠7.
CN08-44 CN-08 dP/dz = 77.3 (78.0 at ρ=1060) mmHg per metre dP/dz 77.3 (78.0 at ρ=1060) mmHg per metre ρg, ρ_blood ≈ 1050 kg·m⁻³, g = 9.81 — a definition (hydrostatics), not a measurement MODELED Computed in-chapter. The ~77 mmHg/m quoted in the giraffe literature is this same ρg, not an independent measurement of it — no cross-check is claimed Arithmetic error, or ρ_blood refuted.
CN08-45 CN-08 P_column(9 m) = ~695 (+~50 perfusion ≈ 745) mmHg P_column(9 m) ~695 (+~50 perfusion ≈ 745) mmHg 9 m head-above-heart; the +50 is Seymour's perfusion term, not an independent constant MODELED Computed in-chapter Arithmetic error.
CN08-46 CN-08 MAP_sauropod = 750 (= 700 static column + ~50 perfusion) mmHg MAP_sauropod 750 (= 700 static column + ~50 perfusion) mmHg ~9 m raised head MODELED Seymour 2009, Biol Lett 5(3):317–319 — the in-chapter arithmetic REPRODUCES his construction using his own +50 term: a consistency check on transcription, NOT an independent landing Re-derive; a different ρ or geometry.
CN08-47 CN-08 m_heart/M = ~5% of body weight; walls 5× thicker, 15× heavier than an animal producing 100 mmHg % m_heart/M ~5% of body weight; walls 5× thicker, 15× heavier than an animal producing 100 mmHg % to produce 700 mmHg — the static column below an upright Barosaurus neck — not the 750 total MODELED Seymour 2009 Re-run the cardiac model.
CN08-48 CN-08 f_circ = ~49% of total energy budget (vs ~10% at 100 mmHg) % f_circ ~49% of total energy budget (vs ~10% at 100 mmHg) % sauropod circulation at 750 mmHg MODELED Seymour 2009 Re-run the model; a cheaper route to 750 mmHg.
CN08-49 CN-08 MAP_giraffe,heart = 185 ± 41.6 mmHg MAP_giraffe,heart 185 ± 41.6 mmHg giraffe, at heart level OBSERVED-REPLICATED Mitchell et al. 2006, J Exp Biol 209(13):2515 Independent catheterisation outside range.
CN08-50 CN-08 MAP_giraffe,head = 100.3 ± 20.9 mmHg MAP_giraffe,head 100.3 ± 20.9 mmHg giraffe, at head OBSERVED-REPLICATED Mitchell & Skinner 1993, via Mitchell et al. 2006 As above.
CN08-51 CN-08 giraffe column reconciliation = 84.7 mmHg ÷ 77.3 ⇒ ~1.1 m — shorter than standing head-above-heart m giraffe column reconciliation 84.7 mmHg ÷ 77.3 ⇒ ~1.1 m — shorter than standing head-above-heart m explained by the source itself: anaesthesia, head held at 'an average angle less than vertical', or necks not 2 m long; residual open question is the authors' own — 'it is also possible that mechanisms exist that reduce the work of the heart' OBSERVED-CONTESTED (explanation stated by the authors; the residual mechanism is untested) Mitchell et al. 2006, J Exp Biol 209(13):2515 (verbatim) Catheterise conscious giraffes of known neck length at known head angle; a residual gap surviving those controls indicts the work-reducing-mechanism hypothesis.
CN08-52 CN-08 Birds ∈ Dinosauria = birds are maniraptoran theropods Birds ∈ Dinosauria birds are maniraptoran theropods phylogeny OBSERVED-REPLICATED Huxley 1868; Ostrom 1970s; Norell et al. 1997; Chen et al. 1998 A phylogeny placing Aves outside Dinosauria on comparable data.
CN08-53 CN-08 Furcula in Dromaeosauridae = present — refutes Heilmann's 1926 objection Furcula in Dromaeosauridae present — refutes Heilmann's 1926 objection Velociraptor OBSERVED-REPLICATED Norell, Makovicky & Clark 1997, Nature 389:447, DOI 10.1038/38918 Re-identify the element as non-furcular.
CN08-54 CN-08 Feathers pre-Avialae = Sinosauropteryx (desc. 1996), Yixian Fm., Liaoning Feathers pre-Avialae Sinosauropteryx (desc. 1996), Yixian Fm., Liaoning first non-avialan dinosaur with feather evidence OBSERVED-REPLICATED Chen, Dong & Zhen 1998, Nature 391:147–152; dating Swisher et al. 1999, Nature 400:58 Re-interpret the integument as collagen and have it hold.
CN08-55 CN-08 Feathers pre-Archaeopteryx = Anchiornis huxleyi, >160 Ma, ≥10 Myr older Ma Feathers pre-Archaeopteryx Anchiornis huxleyi, >160 Ma, ≥10 Myr older Ma Late Jurassic OBSERVED-REPLICATED (dating via secondary summary in this pass) Xu et al.; Moore et al. 2023 context Redate the Tiaojishan/Haifanggou beds.
CN08-56 CN-08 Feathers in Ornithischia = Kulindadromeus zabaikalicus — feather-like structures on the other branch Feathers in Ornithischia Kulindadromeus zabaikalicus — feather-like structures on the other branch OBSERVED-CONTESTED described 2014; primary not fetched in this pass Re-interpret the structures.

CN-09 — Whales: the upper bound of animal life, and low-frequency information

Source: cookbook/recipes-natura/CN-09-whales.md · 67 rows

row_id chapter claim symbol value units scope class source falsifier
CN09-01 CN-09 M_blue,measured — no value carried M_blue,measured t mass of the largest blue whale NOT-MEASURED Motani & Pyenson 2024, PeerJ 12:e16978 Weigh one intact.
CN09-02 CN-09 M_blue,piece = ≥136.4 t M_blue,piece ≥136.4 t 27.1 m female, weighed in parts (fluid lost) OBSERVED-SINGLE Winston 1950, via Motani & Pyenson 2024 Re-weigh under controlled loss accounting.
CN09-03 CN-09 M_blue,regr = 234 (95% CI 187–294); fluid-corrected 252 (CI 201–306) @ 7% blood loss, 272 (CI 217–342) @ 14% t M_blue,regr 234 (95% CI 187–294); fluid-corrected 252 (CI 201–306) @ 7% blood loss, 272 (CI 217–342) @ 14% t 33 m blue whale, length→mass regression. The two fluid-corrected values are separate estimates under separate blood-loss assumptions — never merge them into one interval; 'CI 201–342' is a hull of two intervals, not an interval MODELED Motani & Pyenson 2024 New regression on a larger measured sample; an independent fluid-loss accounting outside 7–14%.
CN09-04 CN-09 M_blue,vol = 266–279 t M_blue,vol 266–279 t 3D volumetric model MODELED Motani & Pyenson 2024 Independent volumetric model outside range.
CN09-05 CN-09 L_blue,max = 33.26 m L_blue,max 33.26 m longest reliably measured blue whale OBSERVED-SINGLE Risting 1928, via Motani & Pyenson 2024 A longer verifiable measurement.
CN09-06 CN-09 M_Perucetus = 85–340 vs 60–70 (max 98–114) t M_Perucetus 85–340 vs 60–70 (max 98–114) t P. colossus: original vs re-analysis. 85–340 is reported via the rebuttal, not the primary (M22 cavity) OBSERVED-CONTESTED Bianucci et al. 2023 as characterised in Motani & Pyenson 2024, PeerJ 12:e16978 Fetch Bianucci et al. 2023 directly; third independent estimate; new postcrania.
CN09-07 CN-09 EE_odontocete = decreases with body mass ratio EE_odontocete decreases with body mass ratio energy captured ÷ energy expended OBSERVED-REPLICATED Goldbogen et al. 2019, Science 366:1367–1372 Tag data showing EE rising with size in odontocetes.
CN09-08 CN-09 EE_rorqual = increases with body mass ratio EE_rorqual increases with body mass ratio lunge filter feeders on krill OBSERVED-REPLICATED Goldbogen et al. 2019, Science As above, inverted.
CN09-09 CN-09 EE_robustness = holds for MR ∝ M^0.45 … M^0.75 EE_robustness holds for MR ∝ M^0.45 … M^0.75 metabolic-exponent ablation MODELED Goldbogen et al. 2019, Science An exponent in range that flips the sign.
CN09-10 CN-09 V_engulf = 100–160 % of whale's own body volume V_engulf 100–160 % of whale's own body volume largest rorquals, per lunge OBSERVED-REPLICATED Goldbogen et al. 2019, Science Direct volumetric measurement outside range.
CN09-11 CN-09 E_lunge/E_prey,odont = ≥1 orders of magnitude E_lunge/E_prey,odont ≥1 orders of magnitude largest rorqual lunge vs largest toothed-whale prey OBSERVED-REPLICATED Goldbogen et al. 2019, Science Prey-energy census closing the gap.
CN09-12 CN-09 Size limit = prey availability, not physiology vs cardiac limit Size limit prey availability, not physiology vs cardiac limit Science 2019 vs PNAS 2019, shared first author OBSERVED-CONTESTED Goldbogen et al. 2019 Science 366:1367–1372; PNAS 116:25329–25332 ECG on n≫1 blue whales; a prey-abundance manipulation.
CN09-13 CN-09 f_HR,dive = 4–8 (min 2) bpm f_HR,dive 4–8 (min 2) bpm blue whale, foraging dives ≤184 m, ≤16.5 min OBSERVED-SINGLE (n=1) Goldbogen et al. 2019, PNAS 116(50):25329–25332 Second instrumented blue whale outside range.
CN09-14 CN-09 f_HR,surface = 25–37 bpm f_HR,surface 25–37 bpm post-deep-dive tachycardia, near inferred max OBSERVED-SINGLE (n=1) Goldbogen et al. 2019, PNAS As above.
CN09-15 CN-09 f_HR,pred = 15 bpm f_HR,pred 15 bpm allometrically predicted resting, 70,000 kg MODELED Goldbogen et al. 2019, PNAS Re-derive the allometry.
CN09-16 CN-09 TE_trophic = 10 % per trophic level TE_trophic 10 % per trophic level 48 trophic models, 6 aquatic ecosystem types; re-estimated, not assumed OBSERVED-REPLICATED Pauly & Christensen 1995, Nature 374:255–257 Re-estimate from independent models outside ~5–15%.
CN09-17 CN-09 TL_range = 1.0 (edible algae) – 4.2 (tunas) fractional trophic level TL_range 1.0 (edible algae) – 4.2 (tunas) fractional trophic level 39 commodity groups, global catch 94.3 Mt/yr 1988–91 OBSERVED-REPLICATED Pauly & Christensen 1995 Re-assign trophic levels.
CN09-18 CN-09 Land-vs-sea size asymmetry = no terrestrial pre-concentrated low-trophic patch Land-vs-sea size asymmetry no terrestrial pre-concentrated low-trophic patch this chapter's synthesis MODELED Composed in-chapter from Goldbogen 2019 + Pauly & Christensen 1995 Exhibit a terrestrial bulk-engulfable low-trophic resource.
CN09-19 CN-09 [Mb]_cetacean = 1.81–5.78 g Mb / 100 g wet muscle [Mb]_cetacean 1.81–5.78 g Mb / 100 g wet muscle cetaceans, body mass 70–80,000 kg OBSERVED-REPLICATED Noren & Williams 2000, Comp Biochem Physiol A 126(2):181–191 Measurement outside range under stated method.
CN09-20 CN-09 [Mb]_dolphin,max = ~6.3 g Mb / 100 g [Mb]_dolphin,max ~6.3 g Mb / 100 g striped dolphin, epaxial middle OBSERVED-SINGLE Arregui et al. 2021, Animals 11(2):451 Independent assay >2× off.
CN09-21 CN-09 f_Mb,locomotor = 92.8 % of total muscle O₂ store f_Mb,locomotor 92.8 % of total muscle O₂ store three delphinid species OBSERVED-SINGLE Arregui et al. 2021 Re-partition by muscle group.
CN09-22 CN-09 [Mb]_terrestrial = <~0.5 (ratio 10–30× divers:non-divers) g Mb / 100 g [Mb]_terrestrial <~0.5 (ratio 10–30× divers:non-divers) g Mb / 100 g non-diving mammals — Kooyman 1989 primary not read here OBSERVED-REPLICATED (secondary attribution) Kooyman 1989, cited in the comparative literature Fetch Kooyman 1989; measure human muscle Mb.
CN09-23 CN-09 [Mb]_human — no value carried [Mb]_human g Mb / 100 g human skeletal muscle NOT-MEASURED not sourced in this pass Fetch a primary value.
CN09-24 CN-09 Z_Mb = elevated net surface charge in divers Z_Mb elevated net surface charge in divers ancestral reconstruction, 130-species phylogeny OBSERVED-REPLICATED Mirceta et al. 2013, Science 340(6138):1234192 A high-[Mb] diver without the charge signature.
CN09-25 CN-09 r²_dive = 50 (all cetaceans); 83 (odontocetes) % variance in max dive duration explained by [Mb] + body mass r²_dive 50 (all cetaceans); 83 (odontocetes) % variance in max dive duration explained by [Mb] + body mass MODELED Noren & Williams 2000 Re-run the regression.
CN09-26 CN-09 d_collapse,N₂ = ~70 m d_collapse,N₂ ~70 m Tursiops truncatus, live, inferred from N₂ washout OBSERVED-SINGLE Ridgway & Howard 1979, Science 206(4423):1182–1183 Repeat washout; a different inferred depth.
CN09-27 CN-09 d_collapse,CT = range 58 (grey seal, 50% TLC) – 133 (harbour porpoise, 100% TLC); per-specimen common-dolphin values NOT-CONFIRMED m d_collapse,CT range 58 (grey seal, 50% TLC) – 133 (harbour porpoise, 100% TLC); per-specimen common-dolphin values NOT-CONFIRMED m post-mortem hyperbaric CT, extrapolated to zero gas volume — vessel rated only to 170 m depth-equivalent, so these are extrapolations, not readings. Every value carries a TLC condition. Do not average with the row above OBSERVED-CONTESTED Moore et al. 2011, J Exp Biol 214:2390–2397 (abstract only — Table 2 not read in this pass) In-vivo imaging under pressure reconciling both; fetch Table 2 for per-specimen values.
CN09-28 CN-09 d_dive,max = 2,992 m d_dive,max 2,992 m Ziphius cavirostris, mammalian depth record OBSERVED-SINGLE Schorr et al. 2014, PLOS ONE 9(3):e92633 A deeper tagged mammalian dive.
CN09-29 CN-09 t_dive,mean = 67.4 (s.d. 6.9) @ 1,401 m (s.d. 137.8) min t_dive,mean 67.4 (s.d. 6.9) @ 1,401 m (s.d. 137.8) min Ziphius, mean deep dive, 8 whales / n = 1,142 deep dives (of 6,827 total = 1,142 deep + 5,685 shallow; the 6,827 sum is this chapter's, from the paper's Table). n is the deep-dive count, not the total OBSERVED-REPLICATED Schorr et al. 2014 Independent tagging outside range.
CN09-30 CN-09 t_dive,median = 59.0 (max 132; 95th pct 77.7 = bADL) min t_dive,median 59.0 (max 132; 95th pct 77.7 = bADL) min Ziphius, 3,680 dives / 23 tags, primary dataset OBSERVED-REPLICATED Quick et al. 2020, J Exp Biol 223(18):jeb222109 Independent dataset outside range.
CN09-31 CN-09 t_dive,222 = 222 (and 173) min t_dive,222 222 (and 173) min one individual (ZcTag066); censored from the bADL estimation for statistical hygiene — 17 and 24 d after a known 1-h Navy mid-frequency sonar exposure. Capacity vs disturbance is UNRESOLVED, and the primary authors lean capacity: 'perhaps more indicative of the true limits of the diving behaviour of this species' OBSERVED-CONTESTED (the dispute is capacity-vs-disturbance; the censoring is not a disturbance verdict) Quick et al. 2020 An unexposed animal reaching >137.5 min.
CN09-32 CN-09 α(f) = 0.11f²/(1+f²) + 44f²/(4100+f²) + 0.0003f² dB/km (f in kHz) α(f) 0.11f²/(1+f²) + 44f²/(4100+f²) + 0.0003f² dB/km (f in kHz) Thorp; N. Atlantic, <50 kHz OBSERVED-REPLICATED Thorp 1967, JASA 42:270, via TU Delft OCW reader ch.3 Measured α outside fit under stated conditions.
CN09-33 CN-09 α(100 Hz) = 0.0012 → r₁₀dB 8,333 dB/km → km α(100 Hz) 0.0012 → r₁₀dB 8,333 dB/km → km Thorp, published table OBSERVED-REPLICATED TU Delft OCW reader ch.3 Recompute; field measurement.
CN09-34 CN-09 α(1 kHz) = 0.07 → r₁₀dB 143 dB/km → km α(1 kHz) 0.07 → r₁₀dB 143 dB/km → km Thorp, published table OBSERVED-REPLICATED as above As above.
CN09-35 CN-09 α(10 kHz) = 1.2 → r₁₀dB 8.3 dB/km → km α(10 kHz) 1.2 → r₁₀dB 8.3 dB/km → km Thorp, published table OBSERVED-REPLICATED as above As above.
CN09-36 CN-09 α(20 Hz) = ~4.8 × 10⁻⁵ → r₁₀dB ~2.1 × 10⁵ dB/km → km α(20 Hz) ~4.8 × 10⁻⁵ → r₁₀dB ~2.1 × 10⁵ dB/km → km computed in-chapter, Thorp extrapolated below its fitting range MODELED Computed in-chapter; formula per Thorp 1967 Field measurement at 20 Hz; a low-f formula disagreeing.
CN09-37 CN-09 α(15 kHz) = 2.47 (Thorp, evaluated in-chapter) vs 1.5 (adopted by Møhl et al. for their sonar-equation example) dB/km α(15 kHz) 2.47 (Thorp, evaluated in-chapter) vs 1.5 (adopted by Møhl et al. for their sonar-equation example) dB/km two model inputs, not two observations. Møhl et al. state no site measurement — 1.5 dB/km is a parameter they plug into a worked example. The gap is an unexplained parameter difference, not a contested observation MODELED Computed in-chapter (Thorp 1967); Møhl et al. 2003 (parameter choice, not a measurement) Measure α at 15 kHz at both sites.
CN09-38 CN-09 α_air,2kHz = ≈ 9.9 dB/km ≈ 1.14 × 10⁻³ m⁻¹ dB/km; m⁻¹ α_air,2kHz ≈ 9.9 dB/km ≈ 1.14 × 10⁻³ m⁻¹ dB/km; m⁻¹ air at 2 kHz, 20 °C, 50% RH, 101.325 kPa — the condition is part of the number MODELED (ISO 9613-1 evaluated in-chapter) ISO 9613-1 (the standard, not the course reader); implementation checked against ISO 9613-2 Table 2 An ISO 9613-1 table lookup or calibrated air-absorption measurement at 2 kHz disagreeing with ~10 dB/km.
CN09-39 CN-09 α_air/α_water = ≈ 80× ratio α_air/α_water ≈ 80× ratio at 2 kHz (air 1.14 × 10⁻³ m⁻¹ @ 20 °C/50% RH vs Thorp 1.4 × 10⁻⁵ m⁻¹). Not '>1,000×' — that figure came from the TU Delft reader's air value, which is wrong by ~17× MODELED (arithmetic on the two source rows) Computed in-chapter from ISO 9613-1 + Thorp 1967 Independent measurement of either term.
CN09-40 CN-09 ΔdB_air/water = 61.58 dB ΔdB_air/water 61.58 dB 10·log₁₀(20² × 3600): reference-pressure ratio × impedance ratio MODELED (arithmetic) Computed in-chapter; cross-checked against Møhl et al. 2003's own 235→173 conversion Arithmetic error; a different impedance ratio.
CN09-41 CN-09 SL_blue = 189 ± 3 dB re 1 µPa @ 1 m, 25–29 Hz SL_blue 189 ± 3 dB re 1 µPa @ 1 m, 25–29 Hz calibrated bottom-moored hydrophones, W. Antarctic Peninsula OBSERVED-REPLICATED Širović, Hildebrand & Wiggins 2007, JASA 122(2):1208–1215 Calibrated measurement outside 186–192.
CN09-42 CN-09 SL_fin = 189 ± 4 dB re 1 µPa @ 1 m, 15–28 Hz SL_fin 189 ± 4 dB re 1 µPa @ 1 m, 15–28 Hz as above OBSERVED-REPLICATED Širović et al. 2007 As above.
CN09-43 CN-09 r_detect,blue = 200 (error 3.8) km r_detect,blue 200 (error 3.8) km measured localization range (hyperbolic) — hydrophone hears whale OBSERVED-SINGLE Širović et al. 2007 Longer localization with stated error.
CN09-44 CN-09 r_detect,fin = 56 (error 3.4) km r_detect,fin 56 (error 3.4) km measured localization range (multipath) OBSERVED-SINGLE Širović et al. 2007 As above.
CN09-45 CN-09 SL_sperm = 236 max; 235 representative (8 events 226–234) dB re 1 µPa rms (on-axis) SL_sperm 236 max; 235 representative (8 events 226–234) dB re 1 µPa rms (on-axis) Physeter, large-aperture array, 14 h, Bleik Canyon OBSERVED-SINGLE Møhl et al. 2003, JASA 114(2):1143–1154 Calibrated on-axis measurement outside range.
CN09-46 CN-09 SL_sperm,offaxis = 170–180 (classical) vs 202–223 (large-aperture) vs 236 (on-axis) dB re 1 µPa SL_sperm,offaxis 170–180 (classical) vs 202–223 (large-aperture) vs 236 (on-axis) dB re 1 µPa the same animal — the spread is aspect angle, not disagreement OBSERVED-REPLICATED Møhl et al. 2003 (reviewing Backus & Schevill 1966 etc.) Show the classical figures were on-axis.
CN09-47 CN-09 SL_sperm,air-equiv = 173 dB SPL re 20 µPa SL_sperm,air-equiv 173 dB SPL re 20 µPa 235 dB re 1 µPa rms converted by the source authors MODELED Møhl et al. 2003 Recompute the impedance conversion.
CN09-48 CN-09 DI_sperm = 27 (half-power half-angle ~4° ⇒ full −3 dB beamwidth ~8°) dB DI_sperm 27 (half-power half-angle ~4° ⇒ full −3 dB beamwidth ~8°) dB composite directionality index. Møhl et al. print the half-angle; beamwidth is conventionally quoted full-width — name the convention or be wrong by 2× OBSERVED-SINGLE Møhl et al. 2003 Reconstruct the radiation pattern.
CN09-49 CN-09 p_on-axis = ~1 in 1,000 clicks p_on-axis ~1 in 1,000 clicks probability a recorded click is the on-axis monopulse OBSERVED-SINGLE Møhl et al. 2003 A recording geometry with a different hit rate.
CN09-50 CN-09 P_sperm = 2 MW omni @ 100% eff. → 4 kW at DI = 27 dB W P_sperm 2 MW omni @ 100% eff. → 4 kW at DI = 27 dB W peak acoustic power to make 235 dB re 1 µPa rms MODELED Møhl et al. 2003 Recompute; refute DI.
CN09-51 CN-09 t_click / f_c = ~100 µs / 15 kHz (cBW_rms 4.1 kHz) s / Hz t_click / f_c ~100 µs / 15 kHz (cBW_rms 4.1 kHz) s / Hz on-axis p1 pulse OBSERVED-SINGLE Møhl et al. 2003 Independent on-axis recording.
CN09-52 CN-09 rms vs p-p = true rms is significantly lower than peak-to-peak, 'used in most of the literature on odontocete clicks' rms vs p-p true rms is significantly lower than peak-to-peak, 'used in most of the literature on odontocete clicks' the units trap OBSERVED-REPLICATED Møhl et al. 2003 (their own caveat)
CN09-53 CN-09 Δ_100kHz = ~60 dB detectability lost to absorption at 1 km Δ_100kHz ~60 dB detectability lost to absorption at 1 km substituting a dolphin-like 100 kHz pulse, ceteris paribus MODELED Møhl et al. 2003 Recompute the sonar equation.
CN09-54 CN-09 c_sound = 1477 (surface) → 1468 (500 m) m/s c_sound 1477 (surface) → 1468 (500 m) m/s Norwegian coastal water, measured profile OBSERVED-SINGLE Møhl et al. 2003 Independent CTD profile.
CN09-55 CN-09 z_SOFAR = ~750–1,200 (midlat); near-surface polar m z_SOFAR ~750–1,200 (midlat); near-surface polar m deep sound channel axis OBSERVED-REPLICATED (secondary source in this pass) Ewing & Worzel 1948, GSA Memoir 27; depth via secondary Fetch a primary sound-speed climatology.
CN09-56 CN-09 r_SOFAR,demo = up to 900 nmi (~1,700 km) km r_SOFAR,demo up to 900 nmi (~1,700 km) km 1944 R/V Saluda explosive-charge demonstration OBSERVED-SINGLE Ewing & Worzel 1948 Read the primary; a different demonstrated range.
CN09-57 CN-09 r_PayneWebb = NOT-CONFIRMED (secondaries render ~700 km / 3,500 mi / 4,000 mi / 13,000 mi) km r_PayneWebb NOT-CONFIRMED (secondaries render ~700 km / 3,500 mi / 4,000 mi / 13,000 mi) km calculated basin-scale range for 20 Hz calls MODELED / NOT-CONFIRMED Payne & Webb 1971, Ann NY Acad Sci 188:110–141 — primary not read in this pass Fetch the primary and read the propagation section.
CN09-58 CN-09 Whales hear each other across a basin — no value carried Whales hear each other across a basin reception + response at basin scale NOT-MEASURED Show a whale detectably responds to an identified conspecific call at ≥10³ km.
CN09-59 CN-09 r_sync,bowhead = up to ~100 (persisting up to ~1 week) km r_sync,bowhead up to ~100 (persisting up to ~1 week) km 12 tagged bowheads, 144 d, Disko Bay; dives recorded, sounds not OBSERVED-SINGLE (mechanism inferred) Podolskiy, Teilmann & Heide-Jørgensen 2024, Phys Rev Research 6:033174 Simultaneous acoustic + dive tags; exclude a shared environmental driver.
CN09-60 CN-09 ΔN_ambient = ~10 (20–80 Hz) and ~10 (200–300 Hz); ~3 (100 Hz) dB, 1963–65 → 1994–2001 ΔN_ambient ~10 (20–80 Hz) and ~10 (200–300 Hz); ~3 (100 Hz) dB, 1963–65 → 1994–2001 same receiver, Point Sur, California. The 200–300 Hz rise sits 7–20× above the whale bands — it is part of Andrew's result and it refutes any 'concentrated in the whale band' reading OBSERVED-REPLICATED Andrew et al. 2002, ARLO 3(2):65–70 Recalibrate; a site showing no rise.
CN09-61 CN-09 ΔN_ambient,SN = 10–12 (95% CI 2.6) at 30–50 Hz ⇒ 2.5–3 dB/decade dB, 1964–66 → 2003–04 ΔN_ambient,SN 10–12 (95% CI 2.6) at 30–50 Hz ⇒ 2.5–3 dB/decade dB, 1964–66 → 2003–04 west of San Nicolas Is.; 138 d continuous OBSERVED-REPLICATED McDonald, Hildebrand & Wiggins 2006, JASA 120(2):711–718 Independent long-baseline site disagreeing.
CN09-62 CN-09 ΔN_>300Hz = 1960s higher (diel component absent today) dB ΔN_>300Hz 1960s higher (diel component absent today) dB the counter-trend — the data are not tidy OBSERVED-SINGLE McDonald et al. 2006 Re-analyse the 1960s diel signal.
CN09-63 CN-09 N_ships = ~2× count, ~4× gross tonnage, 1965→2003 N_ships ~2× count, ~4× gross tonnage, 1965→2003 world commercial fleet OBSERVED-SINGLE McDonald et al. 2006 Independent fleet statistics.
CN09-64 CN-09 Noise rise vs the whale band = measured rises (Andrew 20–80 Hz; McDonald 30–50 Hz) overlap but are not confined to the 15–29 Hz blue/fin band; neither team reports a measurement inside that band, and Andrew finds a comparable rise at 200–300 Hz Noise rise vs the whale band measured rises (Andrew 20–80 Hz; McDonald 30–50 Hz) overlap but are not confined to the 15–29 Hz blue/fin band; neither team reports a measurement inside that band, and Andrew finds a comparable rise at 200–300 Hz this chapter's synthesis — not 'concentrated in the whale band', which no cited paper supports MODELED Composed in-chapter from Andrew et al. 2002 + McDonald et al. 2006 + Širović et al. 2007 A calibrated long-baseline measurement resolving 15–29 Hz specifically.
CN09-65 CN-09 Prestin convergence = dolphin groups inside microbats in the Prestin protein tree Prestin convergence dolphin groups inside microbats in the Prestin protein tree echolocating bats + toothed whales OBSERVED-REPLICATED Li, Liu, Shi & Zhang 2010, Curr Biol 20(2):R55–R56; Liu et al. 2010, 20(2):R53–R54 (independent, same issue) A Prestin tree recovering the species topology.
CN09-66 CN-09 Genome-wide convergence = ~200 loci (Parker) vs 'background level' (Zou & Zhang) loci Genome-wide convergence ~200 loci (Parker) vs 'background level' (Zou & Zhang) loci 22 genomes, 805,053 aa, 2,326 genes OBSERVED-CONTESTED (the genome-wide claim did not survive) Parker et al. 2013, Nature 502(7470):228–231; Zou & Zhang 2015, MBE 32(5):1237–1241; Thomas & Hahn 2015, MBE 32(5):1232–1236 A method settling the null model.
CN09-67 CN-09 Hearing-gene convergence = 12 of 14 convergent sites in 6 of 7 known hearing proteins; Prestin explicitly upheld sites Hearing-gene convergence 12 of 14 convergent sites in 6 of 7 known hearing proteins; Prestin explicitly upheld sites Zou & Zhang's own re-analysis OBSERVED-REPLICATED Zou & Zhang 2015 Re-analysis dispersing the sites genome-wide.

CN-10 — Bats: active inference you can measure

Source: cookbook/recipes-natura/CN-10-bats.md · 53 rows

row_id chapter claim symbol value units scope class source falsifier
CN10-01 CN-10 c = ≈343 m/s c ≈343 m/s air, 20 °C, 1 atm; c ≈ 331.3·sqrt(1+T/273.15) OBSERVED-REPLICATED (standard reference; not primary-sourced in this pass) standard acoustics Fetch a primary reference; a measured c outside 330–350 at stated conditions.
CN10-02 CN-10 f_range = ~9–11 to 212 kHz f_range ~9–11 to 212 kHz dominant (peak) frequency of the strongest call component, across species. Floor is species-dependent, set by E. maculatum. The 212 kHz endpoint is a CF carrier OBSERVED-REPLICATED (as a range) / span attribution NOT-CONFIRMED Thiagavel et al. 2017, Sci Rep 7:828. Fenton et al. 1998's confirmed subject is the 20–60 kHz assemblage result, not the full span A species outside the range on the stated metric; and, separately: locate the 11–212 span in a primary or review source and re-attribute this row, or strike the span.
CN10-03 CN-10 f_mode = 20–60 kHz f_mode 20–60 kHz aerial-feeding assemblages: Canada, Mexico, Brazil, Zimbabwe OBSERVED-REPLICATED Fenton et al. 1998, Can J Zool 76(6):1174–1182 A comparable assemblage not dominated by 20–60 kHz.
CN10-04 CN-10 f_Cloeotis = 212 kHz f_Cloeotis 212 kHz Cloeotis percivali carrier — chain-flagged (M22) OBSERVED-CONTESTED / NOT-CONFIRMED Thiagavel et al. 2017 citing Bell & Fenton 1984, Behav Ecol Sociobiol 15:109–114 (primary not read in this pass) Read Bell & Fenton 1984; if the measurement is not there, the chain breaks.
CN10-05 CN-10 f_Euderma = 9–12 (also reported ~10.5, ~12.7) kHz f_Euderma 9–12 (also reported ~10.5, ~12.7) kHz Euderma maculatum dominant/peak frequency — real spread across sources. This species is what sets the f_range floor OBSERVED-CONTESTED Fullard & Dawson 1997, J Exp Biol 200:129–137; ~10.5 in Thiagavel et al. 2017 Recording outside 9–13 kHz; or a study reconciling the reported values.
CN10-06 CN-10 lambda@50kHz = 6.9 mm lambda@50kHz 6.9 mm lambda = c/f, c = 343 m/s MODELED Computed in-chapter Arithmetic error, or c refuted.
CN10-07 CN-10 lambda@212kHz = 1.6 mm lambda@212kHz 1.6 mm as above MODELED Computed in-chapter As above.
CN10-08 CN-10 lambda@10kHz = 34 mm lambda@10kHz 34 mm as above MODELED Computed in-chapter As above.
CN10-09 CN-10 TS(f) insects = ~independent of f across 20–100 kHz dB TS(f) insects ~independent of f across 20–100 kHz dB real prey items — contradicts sphere/disk Rayleigh models OBSERVED-CONTESTED Waters, Rydell & Jones 1995, Behav Ecol Sociobiol 37(5):321–8, DOI 10.1007/BF00174136 Measure TS of real insects across 20–100 kHz and recover a strong f dependence.
CN10-10 CN-10 alpha_atm (25→50 kHz) = 0.7 → 1.7 dB/m alpha_atm (25→50 kHz) 0.7 → 1.7 dB/m 25 → 50 kHz, 20 °C, 50% RH OBSERVED-REPLICATED Jakobsen, Brinkløv & Surlykke 2013, Front Physiol 4:89, from Lawrence & Simmons 1982; ANSI 1995 Re-measure at stated T/RH; values >2× off.
CN10-11 CN-10 alpha_atm (45→90 kHz) = 1.4 → 4 dB/m alpha_atm (45→90 kHz) 1.4 → 4 dB/m 45 → 90 kHz, 25 °C, 80% RH OBSERVED-REPLICATED as above As above.
CN10-12 CN-10 ΔL_2f = 26 dB ΔL_2f 26 dB round-trip absorption penalty, 45→90 kHz, R = 5 m (10 m path) MODELED Computed in-chapter from alpha_atm Arithmetic error, or alpha_atm refuted.
CN10-13 CN-10 alpha_atm@212kHz — no value carried alpha_atm@212kHz dB/m absorption at Cloeotis's carrier NOT-MEASURED not sourced in this pass Fetch ANSI 1995 / Lawrence & Simmons 1982 and evaluate at 212 kHz.
CN10-14 CN-10 t(R) = 5.83 ms per metre of range t(R) 5.83 ms per metre of range t = 2R/c, two-way MODELED Computed in-chapter Arithmetic error, or c refuted.
CN10-15 CN-10 tau_search = 15–20 ms tau_search 15–20 ms search-phase call duration OBSERVED-REPLICATED Moss & Surlykke 2010, Front Behav Neurosci 4:33 Measured durations outside range for a search-phase FM bat.
CN10-16 CN-10 tau_approach = 2–5 ms tau_approach 2–5 ms approach phase OBSERVED-REPLICATED Moss & Surlykke 2010 As above.
CN10-17 CN-10 tau_buzz = 0.5–1 ms tau_buzz 0.5–1 ms terminal buzz OBSERVED-REPLICATED Moss & Surlykke 2010 As above.
CN10-18 CN-10 R_min = 2.6–3.4 / 0.34–0.86 / 0.086–0.17 m (search / approach / buzz) R_min 2.6–3.4 / 0.34–0.86 / 0.086–0.17 m (search / approach / buzz) overlap-free floor R ≥ c·tau/2 MODELED Computed in-chapter from tau + c Arithmetic error; or a bat ranging cleanly inside c·tau/2.
CN10-19 CN-10 rate_buzz = >160 (up to ~170) calls/s rate_buzz >160 (up to ~170) calls/s terminal buzz repetition rate OBSERVED-REPLICATED Elemans et al. 2011, Science 333(6051):1885–8; Moss & Surlykke 2010 Recording of a terminal buzz capped well below 160/s.
CN10-20 CN-10 f_muscle = up to 160; 200 in one case Hz f_muscle up to 160; 200 in one case Hz anterior cricothyroid, Myotis daubentonii, positive work in cyclic contraction OBSERVED-REPLICATED Elemans et al. 2011 Repeat the work-loop assay; a ceiling well below 160 Hz.
CN10-21 CN-10 buzz ceiling cause = laryngeal motor performance, NOT pulse–echo overlap buzz ceiling cause laryngeal motor performance, NOT pulse–echo overlap M. daubentonii OBSERVED-REPLICATED Elemans et al. 2011 A bat exceeding its measured muscle cycling limit; or overlap shown to bind first.
CN10-22 CN-10 R_unamb@160/s = 1.07 m R_unamb@160/s 1.07 m c·PI/2, PI = 6.25 ms MODELED Computed in-chapter Arithmetic error.
CN10-23 CN-10 f_fovea = 83.0–84.5 kHz f_fovea 83.0–84.5 kHz R. ferrumequinum inferior colliculus, overrepresented best frequencies OBSERVED-REPLICATED Schuller & Pollak 1979, J Comp Physiol 132:47–54 Map IC best frequencies and find no overrepresentation.
CN10-24 CN-10 SD_echo = 110 (= 0.17% of F_ref) Hz SD_echo 110 (= 0.17% of F_ref) Hz Hipposideros armiger (a hipposiderid — NOT a rhinolophid/horseshoe bat), in-flight DSC precision. An emission-control statistic: how tightly the bat stabilises F_echo. It is NOT a measured resolution requirement of the bat's receiver, and the source does not claim it is OBSERVED-REPLICATED Schoeppler, Schnitzler & Denzinger 2018, Sci Rep 8:4598 Onboard-mic replication with SD >5× larger.
CN10-25 CN-10 drift_Frest/Fref = up to 230 / 250 Hz drift_Frest/Fref up to 230 / 250 Hz H. armiger, within a session OBSERVED-REPLICATED Schoeppler et al. 2018 As above.
CN10-26 CN-10 band_DSC = 0.1–0.2% of F_ref (≈83–166 Hz at F_ref = 83 kHz) % of F_ref band_DSC 0.1–0.2% of F_ref (≈83–166 Hz at F_ref = 83 kHz) % of F_ref rhinolophids and P. parnellii — the band: precision within which F_echo is held around F_ref. A different quantity from offset_DSC below OBSERVED-REPLICATED Schoeppler et al. 2018, Sci Rep 8:4598 Re-measure; a band >2× wider under the same paradigm.
CN10-27 CN-10 offset_DSC = ~150–200 Hz (F_ref above F_rest) offset_DSC ~150–200 Hz (F_ref above F_rest) R. ferrumequinum, R. euryale, P. parnellii, in flight — the offset, not the band OBSERVED-REPLICATED Schoeppler et al. 2018 Re-measure; an offset outside 100–250 Hz under the same paradigm.
CN10-28 CN-10 Δf_emit = ~2.4 kHz (lowering) Δf_emit ~2.4 kHz (lowering) bat at v = 5 m/s, f_r = f_e(c+v)/(c−v), F_ref = 83 kHz MODELED Computed in-chapter Arithmetic error; or a DSC bat that does not lower emission when closing.
CN10-29 CN-10 tau_CF,min = ≳9 ms tau_CF,min ≳9 ms derived bound: Δf ≈ 1/tau ≤ 110 Hz — soft (coherent estimation can beat 1/tau) and conditional on an unmeasured premise: that the 110 Hz emission-control SD equals the flutter-resolution scale the receiver must resolve MODELED (premise HYPOTHESIZED) Computed in-chapter from SD_echo Show CF-FM flutter discrimination at that precision with tau ≪ 9 ms; or show that the required flutter-resolution scale differs from the DSC control SD — which collapses the premise and with it this row.
CN10-30 CN-10 fovea width vs DSC precision, same animal — no value carried fovea width vs DSC precision, same animal within-species pairing NOT-MEASURED two species spliced in-chapter (R. ferrumequinum fovea, H. armiger DSC) Measure fovea width and DSC precision in one species.
CN10-31 CN-10 Δr = c/(2B) = 2.9 (at B = 60 kHz) / 8.6 (at B ≈ 1/tau, tau = 0.5 ms) mm / cm Δr = c/(2B) 2.9 (at B = 60 kHz) / 8.6 (at B ≈ 1/tau, tau = 0.5 ms) mm / cm matched-filter range resolution — B = 60 kHz is an illustrative input, not a species value MODELED (standard sonar theory; not primary-sourced) Computed in-chapter Cite a primary text; or a species FM bandwidth that moves the number.
CN10-32 CN-10 bat range-discrimination threshold — no value carried bat range-discrimination threshold measured psychophysics (the 'jitter' literature) NOT-SOURCED in this pass Read the jitter experiments and their replication attempts before quoting any threshold.
CN10-33 CN-10 SL_open = ~130, up to and beyond 140 dB SPL re 20 µPa @ 0.1 m SL_open ~130, up to and beyond 140 dB SPL re 20 µPa @ 0.1 m open-space aerial-hawking bats OBSERVED-REPLICATED Surlykke & Kalko 2008, PLoS ONE 3:e2036; Jakobsen et al. 2013 Calibrated on-axis recording well below 130 dB for an open-space hawker.
CN10-34 CN-10 SL_whisper = up to 110 (not ~70) dB SPL re 20 µPa @ 0.1 m SL_whisper up to 110 (not ~70) dB SPL re 20 µPa @ 0.1 m 'whispering' bats OBSERVED-REPLICATED Jakobsen et al. 2013 Calibrated recording capping at ~70 dB.
CN10-35 CN-10 p@140dB = 200 Pa (≈0.2% of 1 atm) p@140dB 200 Pa (≈0.2% of 1 atm) p = 20e-6 × 10^(SL/20) at 0.1 m MODELED Computed in-chapter Arithmetic error.
CN10-36 CN-10 t_reflex = 3–4 (EMG) / 4–8 (cochlear microphonic) ms t_reflex 3–4 (EMG) / 4–8 (cochlear microphonic) ms acoustic middle-ear-muscle REFLEX latency, M. lucifugus — reported by the authors in order to REJECT the reflex as the mechanism: too slow to attenuate the outgoing call OBSERVED-REPLICATED Suga & Jen 1975, J Exp Biol 62(2):277–311 Re-measure reflex latency; a latency short enough for the reflex to attenuate the emission after all.
CN10-37 CN-10 MEM timing vs vocalisation = synchronous — driven by an efference copy, not by the sound and not by a pre-vocal lead MEM timing vs vocalisation synchronous — driven by an efference copy, not by the sound and not by a pre-vocal lead stapedius/tensor tympani, M. lucifugus OBSERVED-REPLICATED Suga & Jen 1975: the muscles 'received a message from the vocalization system when the bat vocalized, and contracted synchronously with vocalization' EMG showing muscle onset leading or lagging call onset, with a stated sign.
CN10-38 CN-10 MEM pre-vocal lead time — no value carried MEM pre-vocal lead time ms onset of middle-ear-muscle contraction relative to call onset, with a sign NOT-SOURCED in this pass Struck: an earlier version printed '4–6 ms before vocalisation' and '8.8 ± 2.2 ms'. Neither figure is in Suga & Jen 1975, and Suga & Jen report the opposite sign — 'synchronously' Find an EMG study reporting MEM onset relative to call onset with a stated sign.
CN10-39 CN-10 A_MEM = 17–25 dB attenuation of self-generated signal A_MEM 17–25 dB attenuation of self-generated signal middle-ear muscle contraction during emission OBSERVED-REPLICATED (spread real; some sources report ~20–30) Suga & Jen 1975; Henson 1965 (cited by, not read here) Measure with stapedius intact vs ablated.
CN10-40 CN-10 AGC = ~6 dB sensitivity drop per halving of target distance AGC ~6 dB sensitivity drop per halving of target distance approach phase, attributed to middle-ear muscles OBSERVED-REPLICATED Jakobsen et al. 2013, citing Suga & Jen 1975 Measure receiver gain vs range and find no schedule.
CN10-41 CN-10 cost of echolocation in flight = negligible at low intensity; exorbitant above ~130 dB SPL @ 0.1 m for small bats cost of echolocation in flight negligible at low intensity; exorbitant above ~130 dB SPL @ 0.1 m for small bats Rhogeessa io (5 g); Pipistrellus nathusii OBSERVED-CONTESTED → resolved along intensity Speakman & Racey 1991, Nature 350:421–3; Voigt & Lewanzik 2012, J Comp Physiol B 182:831–40; Currie et al. 2020, Nat Ecol Evol 4(9):1174–7 Measure flight metabolic rate vs call intensity in a third species; a knee absent, or at a very different SPL.
CN10-42 CN-10 rate_pulse,flight = 19.7 ± 2.7 (range 15.3–25.8) pulses/s rate_pulse,flight 19.7 ± 2.7 (range 15.3–25.8) pulses/s Rhogeessa io, in flight (non-buzz) OBSERVED-REPLICATED Voigt & Lewanzik 2012 Replication outside range.
CN10-43 CN-10 St_cruise = 0.2–0.4 dimensionless St_cruise 0.2–0.4 dimensionless flying + swimming animals at cruise, bats included OBSERVED-REPLICATED Taylor, Nudds & Thomas 2003, Nature 425:707–11 A cruising animal well outside the band under the same St = fA/U convention.
CN10-44 CN-10 St_Glossophaga = 0.17–0.22 (4–6 m/s); 0.25–0.40 (3.4–4 m/s); 0.5–0.68 (<3 m/s) dimensionless St_Glossophaga 0.17–0.22 (4–6 m/s); 0.25–0.40 (3.4–4 m/s); 0.5–0.68 (<3 m/s) dimensionless Glossophaga soricina, wind tunnel, 1.23–7.52 m/s OBSERVED-REPLICATED Lindhe Norberg & Winter 2006, J Exp Biol 209(19):3887–97 High-speed replication moving the bands.
CN10-45 CN-10 wing loading / aspect ratio numeric ranges — no value carried wing loading / aspect ratio numeric ranges N/m² / dimensionless bats NOT-SOURCED in this pass Norberg & Rayner 1987 pattern is sourced; the numbers are not Read Norberg & Rayner 1987, Phil Trans R Soc B 316:335–427; state full- vs half-span convention.
CN10-46 CN-10 AR/wing-loading pattern = high AR → open air; low AR → clutter; low wing loading → slower flight AR/wing-loading pattern high AR → open air; low AR → clutter; low wing loading → slower flight PCA over 200+ species OBSERVED-REPLICATED Norberg & Rayner 1987 Re-run on a modern phylogeny with phylogenetic correction; pattern vanishes.
CN10-47 CN-10 capture_clicking = 6.8 vs 71 (silenced) % capture success capture_clicking 6.8 vs 71 (silenced) % capture success Bertholdia trigona vs Eptesicus fuscus, field OBSERVED-REPLICATED Corcoran & Conner 2012, J Exp Biol 215(24):4278–87 Field replication with a defence ratio near 1.
CN10-48 CN-10 defence_ratio = 10.4 (= 71/6.8) dimensionless defence_ratio 10.4 (= 71/6.8) dimensionless as above MODELED Computed by Corcoran & Conner 2012 from their own rates As above.
CN10-49 CN-10 miss_distance = ~15–20 cm miss_distance ~15–20 cm jammed bats; matches ranging-interference prediction OBSERVED-REPLICATED Corcoran, Barber, Hristov & Conner 2011, J Exp Biol 214:2416–25 A method discriminating the three hypotheses and favouring phantom echo or masking.
CN10-50 CN-10 dose_response = 77% capture at 0% duty cycle; odds −4% per +1% duty cycle % dose_response 77% capture at 0% duty cycle; odds −4% per +1% duty cycle % E. fuscus, playback OBSERVED-REPLICATED Fernández, Dowdy & Conner 2022, J Exp Biol 225(18):jeb244187 Replicate the dose–response and find no slope.
CN10-51 CN-10 t_jam = ~2 ms window before echo arrival t_jam ~2 ms window before echo arrival click must land inside it to jam OBSERVED-REPLICATED Fernández et al. 2022 Vary click timing; jamming persists far outside 2 ms.
CN10-52 CN-10 d_detect,moth = 20–25 (E. fuscus) vs <1 (E. maculatum) m d_detect,moth 20–25 (E. fuscus) vs <1 (E. maculatum) m average noctuoid moth's detection distance OBSERVED-REPLICATED Fullard & Dawson 1997 Neurophysiology giving a different threshold; a moth detecting E. maculatum at >5 m.
CN10-53 CN-10 f_click,B.trigona = up to 4,500 clicks/s f_click,B.trigona up to 4,500 clicks/s Bertholdia trigona — chain-flagged NOT-CONFIRMED tertiary source citing Corcoran et al. 2009; primary not read in this pass Read Corcoran et al. 2009 (Science 325:325–7) and confirm or strike.

CN-11 — Humans: the numbers, without the flattery

Source: cookbook/recipes-natura/CN-11-humans.md · 59 rows

row_id chapter claim symbol value units scope class source falsifier
CN11-01 CN-11 N_cells,Bianconi = 3.72 × 10¹³ cells N_cells,Bianconi 3.72 × 10¹³ cells standard adult; organ-by-organ bibliographic sum MODELED Bianconi et al. 2013, Ann Hum Biol 40(6):463–471 Independent systematic count outside 2–6 × 10¹³.
CN11-02 CN-11 N_cells,Sender = 3.0 × 10¹³ (2% est. unc.; 14% CV) cells N_cells,Sender 3.0 × 10¹³ (2% est. unc.; 14% CV) cells 70 kg reference male MODELED Sender, Fuchs & Milo 2016, PLoS Biol 14(8):e1002533 Recount outside stated uncertainty.
CN11-03 CN-11 f_RBC = ~84 (2.5 × 10¹³) % of human cells f_RBC ~84 (2.5 × 10¹³) % of human cells 70 kg male MODELED Sender et al. 2016 Recount; RBC fraction outside 75–90%.
CN11-04 CN-11 N_nucleated = ~5 × 10¹² cells N_nucleated ~5 × 10¹² cells 3.0 × 10¹³ − 2.5 × 10¹³ MODELED Computed in-chapter from Sender et al. 2016 Arithmetic error.
CN11-05 CN-11 N_bacteria = 3.8 × 10¹³ (25% est. unc.; 52% SD) cells N_bacteria 3.8 × 10¹³ (25% est. unc.; 52% SD) cells 70 kg male, mostly colon MODELED Sender et al. 2016 Independent estimate outside stated band.
CN11-06 CN-11 R_B/H = 1.3 (25% unc.; 53% variation) dimensionless R_B/H 1.3 (25% unc.; 53% variation) dimensionless all human cells as denominator MODELED Sender et al. 2016 Recount outside band.
CN11-07 CN-11 R_B/H,nucleated = ~8:1 dimensionless R_B/H,nucleated ~8:1 dimensionless nucleated human cells as denominator MODELED Computed in-chapter from Sender et al. 2016 Arithmetic error.
CN11-08 CN-11 R_B/H,folklore = 10:1 — superseded dimensionless R_B/H,folklore 10:1 — superseded dimensionless traced to one 1972 back-of-envelope (10¹¹/g × 1 L) INADMISSIBLE as stated (no method, no denominator) Sender et al. 2016 (the tracing) Produce the original measurement it was said to rest on.
CN11-09 CN-11 m_microbiota = ~0.2 (0.3% of body mass) kg wet weight m_microbiota ~0.2 (0.3% of body mass) kg wet weight 70 kg male MODELED Sender et al. 2016 Direct measurement >2× off.
CN11-10 CN-11 Δ_defecation = 25–33 % of colonic content per event Δ_defecation 25–33 % of colonic content per event normal adult OBSERVED-REPLICATED Sender et al. 2016 Measurement outside range.
CN11-11 CN-11 V̇O₂,basal = 250 mL O₂/min V̇O₂,basal 250 mL O₂/min 70 kg man, basal state OBSERVED-REPLICATED Clarke & Sokoloff, Basic Neurochem, 6th ed. 1999 Indirect calorimetry >20% off.
CN11-12 CN-11 k_O₂ = 4.82 (≈20.1 kJ/L) kcal/L O₂ k_O₂ 4.82 (≈20.1 kJ/L) kcal/L O₂ mixed diet, RQ ≈ 0.82 (fat 4.68, CHO 5.03) OBSERVED-REPLICATED standard indirect calorimetry Bomb-calorimetry value outside 4.6–5.1.
CN11-13 CN-11 P_BMR = ~84 (≈1,735 kcal/day) W P_BMR ~84 (≈1,735 kcal/day) W 70 kg man; from V̇O₂ × k_O₂ MODELED Computed in-chapter from Clarke & Sokoloff Arithmetic error, or V̇O₂ refuted.
CN11-14 CN-11 P_TDEE = ~97 (2,000 kcal/day) W P_TDEE ~97 (2,000 kcal/day) W the 2,000 kcal/day dietary-labelling convention, converted — not a measured TDEE, and not BMR. No sex/age/mass/activity scope. The input is NOT-MEASURED MODELED on an unsourced input Computed in-chapter; the 2,000 kcal/day input is NOT-SOURCED in this pass Conversion: arithmetic error. Input falsifier (the one that matters): a doubly-labelled-water TDEE for a stated cohort outside 1,800–2,200 kcal/day.
CN11-15 CN-11 p_body = ~1.2 W/kg p_body ~1.2 W/kg 84 W / 70 kg MODELED Computed in-chapter Arithmetic error.
CN11-16 CN-11 p_cell = ~100 (mammalian) / ~1,000 (E. coli) W/kg p_cell ~100 (mammalian) / ~1,000 (E. coli) W/kg cross-ref NA-08 OBSERVED-REPLICATED BNID 111474/111475; 109687 (see NA-08) see NA-08.
CN11-17 CN-11 N_neurons = 86.1 ± 8.1 × 10⁹ neurons N_neurons 86.1 ± 8.1 × 10⁹ neurons adult male human brain, isotropic fractionator OBSERVED-REPLICATED Azevedo et al. 2009, J Comp Neurol 513:532–541 Independent count outside ±2 SD.
CN11-18 CN-11 N_nonneuronal = 84.6 ± 9.8 × 10⁹ cells N_nonneuronal 84.6 ± 9.8 × 10⁹ cells same OBSERVED-REPLICATED Azevedo et al. 2009 As above.
CN11-19 CN-11 R_glia:neuron = ~1:1 dimensionless R_glia:neuron ~1:1 dimensionless whole human brain OBSERVED-REPLICATED Azevedo et al. 2009 A count returning ≥3:1 by an unbiased method.
CN11-20 CN-11 R_glia,folklore = 10:1 — superseded dimensionless R_glia,folklore 10:1 — superseded dimensionless no supporting reference locatable INADMISSIBLE as stated Herculano-Houzel 2012, PNAS 109(S1):10661–8 (the tracing) Produce the primary source it rested on.
CN11-21 CN-11 N_neurons,folklore = 100 × 10⁹ — superseded neurons N_neurons,folklore 100 × 10⁹ — superseded neurons no supporting reference locatable INADMISSIBLE as stated Herculano-Houzel 2012 (the tracing) As above.
CN11-22 CN-11 f_cortex = 19 % of all brain neurons f_cortex 19 % of all brain neurons adult male human, isotropic fractionator — the human-specific unbiased count OBSERVED-REPLICATED Azevedo et al. 2009 (abstract: 'With only 19% of all neurons located in the cerebral cortex') Unbiased count outside 17–21%.
CN11-23 CN-11 f_cortex,mammals = 20–25 % of all brain neurons f_cortex,mammals 20–25 % of all brain neurons most mammalian species examined, including humans — regardless of relative cortex size. A cross-species regularity, not the human measurement OBSERVED-REPLICATED Herculano-Houzel 2012 A mammalian clade whose cortex holds a materially different share.
CN11-24 CN-11 R_cerebellum:cortex = ~4:1 neurons R_cerebellum:cortex ~4:1 neurons human; consistent with f_cortex = 19 (cortex 19% + cerebellum ~80% + rest ~1% = 100). Note it does not close at 25% OBSERVED-REPLICATED Herculano-Houzel 2012; Azevedo et al. 2009 Unbiased count outside 3–5:1.
CN11-25 CN-11 N_synapses = 1.64 × 10¹⁴ (164 × 10¹², CV = 0.17; textbook summaries span 0.6–2.4 × 10¹⁴) synapses N_synapses 1.64 × 10¹⁴ (164 × 10¹², CV = 0.17; textbook summaries span 0.6–2.4 × 10¹⁴) synapses human neocortex, n = 5 young male autopsy brains, unbiased stereology OBSERVED-SINGLE (single study, n = 5; no independent replication located) Tang et al. 2001, Synapse 41(3):258–273 — primary abstract read this pass An independent stereological count outside 0.6–2.4 × 10¹⁴; any replication at n > 5.
CN11-26 CN-11 f_brain,mass = ~2 % of body mass f_brain,mass ~2 % of body mass ~1.4–1.5 kg / 70 kg OBSERVED-REPLICATED standard anatomy; Herculano-Houzel 2012 Measurement outside 1.5–2.5%.
CN11-27 CN-11 f_brain,O₂ = ~20 % of resting O₂ consumption f_brain,O₂ ~20 % of resting O₂ consumption 70 kg man, basal OBSERVED-REPLICATED Clarke & Sokoloff 1999 CMRO₂ measurement outside 15–25%.
CN11-28 CN-11 P_brain,CMRO₂ = ~17 (≈347 kcal/day) W P_brain,CMRO₂ ~17 (≈347 kcal/day) W from 20% × 250 mL O₂/min MODELED Computed in-chapter from Clarke & Sokoloff Arithmetic error.
CN11-29 CN-11 P_brain,perneuron = ~25 (516 kcal/day; 25% of TDEE) W P_brain,perneuron ~25 (516 kcal/day; 25% of TDEE) W 86 × 10⁹ × 6 kcal/d per 10⁹ neurons MODELED Herculano-Houzel 2012 Direct human measurement settling the 1.5× gap.
CN11-30 CN-11 P_brain spread = ~1.5× — do not average dimensionless P_brain spread ~1.5× — do not average dimensionless CMRO₂ route vs per-neuron route OBSERVED-CONTESTED / MODELED the two rows above A method reconciling both under one measurement.
CN11-31 CN-11 p_brain = ~12–18 W/kg p_brain ~12–18 W/kg 17–25 W over ~1.4 kg; ~10–15× body mean MODELED Computed in-chapter Arithmetic error.
CN11-32 CN-11 c_neuron = 6 kcal/day per 10⁹ neurons c_neuron 6 kcal/day per 10⁹ neurons primates; comparative regression MODELED Herculano-Houzel 2012 Direct per-neuron measurement >2× off.
CN11-33 CN-11 human brain vs primate line = on the line — not an outlier human brain vs primate line on the line — not an outlier neuron count vs brain size, primates OBSERVED-REPLICATED Azevedo et al. 2009 (title claim); Herculano-Houzel 2012 A primate scaling regression placing humans significantly off-line.
CN11-34 CN-11 m_brain,human vs elephant = human ~1.5; elephant 2–3× larger kg m_brain,human vs elephant human ~1.5; elephant 2–3× larger kg humans also not first in relative brain size OBSERVED-REPLICATED Herculano-Houzel 2012 Comparative measurement refuting.
CN11-35 CN-11 N_beats,mammal = 7.3 ± 5.6 × 10⁸ (CV ≈ 77%) beats/lifetime N_beats,mammal 7.3 ± 5.6 × 10⁸ (CV ≈ 77%) beats/lifetime 15 mammal species, excluding humans. Provenance, per Levine's own Fig. 1 caption — 'Most coordinates represent average values (4–6)': refs 4–6 are Spector, Handbook of Biological Data (1956); Encyclopaedia Britannica (1971); and White et al. (1938). Species lifespan/HR coordinates not independently traced OBSERVED-CONTESTED (a loose 'invariant', on averaged and untraced coordinates) Levine 1997, J Am Coll Cardiol 30:1104–1106 Expand the species set; a tighter or looser CV; trace the coordinates to primary measurements.
CN11-36 CN-11 N_beats,human = ~2.9 × 10⁹ (2.945 × 10⁹; ~4× mean, ~4 SD out) beats/lifetime N_beats,human ~2.9 × 10⁹ (2.945 × 10⁹; ~4× mean, ~4 SD out) beats/lifetime 70 bpm × 80 yr MODELED Levine 1997 states ~3 × 10⁹ himself at these inputs — recomputed in-chapter as 2.945 × 10⁹ Arithmetic error; Levine's own stated figure moving.
CN11-37 CN-11 N_beats,human@70yr = ~2.6 × 10⁹ (2.577 × 10⁹; ~3.5× mean, ~3.3 SD — still OUTSIDE the band) beats/lifetime N_beats,human@70yr ~2.6 × 10⁹ (2.577 × 10⁹; ~3.5× mean, ~3.3 SD — still OUTSIDE the band) beats/lifetime 70 bpm × modal adult age at death ≈ 7 decades (lifespan in the evolutionary environment) MODELED Computed in-chapter; lifespan input sourced to Gurven & Kaplan 2007, Popul Dev Rev 33(2):321–365 Arithmetic error; a sourced evolutionary lifespan materially ≠ ~7 decades.
CN11-38 CN-11 e₀,hunter-gatherer = 21–37 years e₀,hunter-gatherer 21–37 years life expectancy at birth, traditional hunter-gatherers. Not a per-individual lifespan and cannot be multiplied by a heart rate — an average depressed largely by infant mortality OBSERVED-REPLICATED (cross-cultural synthesis) Gurven & Kaplan 2007 A cross-cultural series placing hunter-gatherer e₀ outside 21–37.
CN11-39 CN-11 N_beats,human@40yr = ~1.5 × 10⁹ (~1.3 SD, 'comfortably inside the band') — WITHDRAWN this pass beats/lifetime N_beats,human@40yr ~1.5 × 10⁹ (~1.3 SD, 'comfortably inside the band') — WITHDRAWN this pass beats/lifetime 70 bpm × 40 yr, 'pre-industrial-plausible' INADMISSIBLE as stated: the 40 yr was unsourced, and matches neither sourced quantity — above hunter-gatherer e₀ (21–37), well below modal adult lifespan (~7 decades) previously 'Computed here'; the input was never sourced Produce a sourced pre-industrial lifespan of ~40 yr that is a lifespan and not an e₀.
CN11-40 CN-11 Fr_transition = ~0.5 dimensionless Fr_transition ~0.5 dimensionless Fr = v²/(gL), L = hip height above ground; bipeds, walk→run OBSERVED-REPLICATED Alexander 1984, Int J Robot Res 3(2):49–59; Kram, Domingo & Ferris 1997, J Exp Biol 200(4):821–826 A biped switching at a materially different Fr.
CN11-41 CN-11 v_transition = ~2.1 (range 2.0–2.2 for L = 0.8–1.0 m) m/s v_transition ~2.1 (range 2.0–2.2 for L = 0.8–1.0 m) m/s L = 0.9 m, g = 9.81 m/s². Computed, not observed — a measured absolute preferred transition speed with its n is NOT-SOURCED in this pass MODELED Computed in-chapter: v = √(Fr·g·L) Arithmetic error; a measured preferred transition speed outside 2.0–2.2 m/s.
CN11-42 CN-11 v_Fr=1 = ~3.0 m/s v_Fr=1 ~3.0 m/s inverted-pendulum mechanical ceiling, L = 0.9 m MODELED Computed in-chapter Arithmetic error.
CN11-43 CN-11 λ_sweat = ~2430 (2257 at 100 °C) J/g λ_sweat ~2430 (2257 at 100 °C) J/g water, skin temperature — cross-ref CN-02 OBSERVED-REPLICATED see CN-02 Calorimetry outside ±1%.
CN11-44 CN-11 Ṡ_routine = 1 L/h Ṡ_routine 1 L/h working in hot environments OBSERVED-REPLICATED Nutritional Needs in Hot Environments (NCBI NBK236240) Field measurement outside 0.5–2 L/h.
CN11-45 CN-11 Ṡ_max = 3.7 L/h Ṡ_max 3.7 L/h n = 1 — Alberto Salazar, 1984 Olympic Marathon. A single reported record maximum: one runner, one race, uncorroborated OBSERVED-SINGLE (single report) primary: Armstrong, Hubbard, Jones & Daniels 1986, Physician Sportsmed 14(3):73–81; secondary route: NBK236240 A higher documented rate; any replication at n > 1.
CN11-46 CN-11 P_evap@1L/h = ~675 (≈8× BMR) W P_evap@1L/h ~675 (≈8× BMR) W ceiling, assumes full evaporation at the skin MODELED Computed in-chapter from λ_sweat Arithmetic error.
CN11-47 CN-11 P_evap@3.7L/h = ~2500 (≈30× BMR) W P_evap@3.7L/h ~2500 (≈30× BMR) W ceiling, same assumption MODELED Computed in-chapter Arithmetic error.
CN11-48 CN-11 λ_eff reduction = up to 45 % below physical λ λ_eff reduction up to 45 % below physical λ vapour resistance displaces evaporation off-skin OBSERVED-REPLICATED Havenith et al. 2013 (see CN-02) Manikin study finding λ_eff ≈ λ.
CN11-49 CN-11 panting decoupling = breathing phase-locked to gait in galloping quadrupeds; sweating is not panting decoupling breathing phase-locked to gait in galloping quadrupeds; sweating is not mechanism, not magic OBSERVED-REPLICATED Carrier 1984 A galloping quadruped independently modulating pant rate.
CN11-50 CN-11 E_threshold = 2.1–5.7 × 10⁻¹⁰ ergs = 54–148 quanta at the cornea E_threshold 2.1–5.7 × 10⁻¹⁰ ergs = 54–148 quanta at the cornea blue-green, optimal conditions OBSERVED-REPLICATED Hecht, Shlaer & Pirenne 1942, J Gen Physiol 25(6):819–840 Replication outside range.
CN11-51 CN-11 n_quanta,absorbed = 5–14 quanta at the rods n_quanta,absorbed 5–14 quanta at the rods inferred after corneal/media/rhodopsin losses MODELED Hecht et al. 1942 A loss model changing the inference.
CN11-52 CN-11 single-photon detection = above chance probability single-photon detection above chance probability single photon at cornea; heralded source OBSERVED-CONTESTED Tinsley et al. 2016, Nat Commun 7:12172; tension asserted by DOI 10.1038/s41467-024-48750-y (title-level reading only) Read the 2024 paper; a replication failing above-chance detection.
CN11-53 CN-11 DR_hearing = 10⁶ pressure / 10¹² intensity (0→120 dB SPL; 20 µPa → 20 Pa) dimensionless DR_hearing 10⁶ pressure / 10¹² intensity (0→120 dB SPL; 20 µPa → 20 Pa) dimensionless The ratio follows from the dB definition; the endpoints do not. 0 dB SPL = the 20 µPa reference level, anchored near 1 kHz — not 'the threshold of hearing'. 120 dB upper endpoint = a convention, no source carried MODELED (the ratio) / NOT-MEASURED (both endpoints) Computed in-chapter from the 20 µPa reference level; no primary carried for either endpoint Ratio: arithmetic error. Endpoints: an audiometric threshold series showing the 20 µPa reference is not ≈ threshold at 1 kHz; or a sourced upper endpoint ≠ 120 dB SPL.
CN11-54 CN-11 DR_vision = ~10 — carried as a ballpark, not asserted orders of magnitude of luminance DR_vision ~10 — carried as a ballpark, not asserted orders of magnitude of luminance scotopic→photopic NOT-MEASURED — no source located this pass none — NOT-SOURCED in this pass Fetch a primary for the scotopic→photopic luminance range; a sourced range materially ≠ ~10 orders.
CN11-55 CN-11 retina orientation = inverted (photoreceptors face away; axons exit through it → blind spot) retina orientation inverted (photoreceptors face away; axons exit through it → blind spot) vertebrates; cephalopods verted, no blind spot OBSERVED-REPLICATED Franze et al. 2007, PNAS 104(20):8287–8292; cephalopod comparative literature An anatomical demonstration that vertebrate photoreceptors face the light.
CN11-56 CN-11 Müller cells as waveguides = funnel-shaped, higher refractive index, aligned to light path Müller cells as waveguides funnel-shaped, higher refractive index, aligned to light path the patch, not a refutation of the accident OBSERVED-REPLICATED Franze et al. 2007 Optical measurement showing no fibre-like transfer.
CN11-57 CN-11 ceiling_EGG = 2.0–2.1 × BMR (non-pregnant, non-lactating) ceiling_EGG 2.0–2.1 × BMR (non-pregnant, non-lactating) maternal max sustained metabolic scope OBSERVED-CONTESTED Dunsworth et al. 2012, PNAS 109(38):15212–15216; contested by Evol Med Public Health 11(1):415 (2023) A study confirming the ceiling is never exceeded at term.
CN11-58 CN-11 wider pelvis → locomotor cost = no measured increase wider pelvis → locomotor cost no measured increase men and women, dynamic hip-abductor model OBSERVED-REPLICATED Warrener et al. 2015, PLoS ONE 10(3):e0118903 A replication finding a metabolic penalty for pelvic width.
CN11-59 CN-11 first-person testimony — no value carried first-person testimony the human is the only system here that reports its states HONEST-class, never TRUE repo cardinal rule; NA-04, M12 None. Testimony is never calibrated — that is the point, not a gap.

CN-12 — Beyond human: the permanent open question (QUAESTIO APERTA)

Source: cookbook/recipes-natura/CN-12-beyond-human-open-question.md · 41 rows

row_id chapter claim symbol value units scope class source falsifier
CN12-01 CN-12 E_L(300) = 2.87 × 10⁻²¹ J per bit erased E_L(300) 2.87 × 10⁻²¹ J per bit erased k_B T ln2, T = 300 K MODELED (computed) Landauer 1961, IBM J Res Dev 5(3):183–191; k_B exact per SI 2019 Arithmetic error.
CN12-02 CN-12 E_L(310) = 2.97 × 10⁻²¹ J per bit erased E_L(310) 2.97 × 10⁻²¹ J per bit erased k_B T ln2, T = 310 K (body) MODELED (computed) as above Arithmetic error.
CN12-03 CN-12 E_L measured = saturates at k_B T ln2 J E_L measured saturates at k_B T ln2 J single colloidal particle, modulated double-well, long erasure cycles OBSERVED-REPLICATED Bérut et al. 2012, Nature 483:187–190 An erasure cycle dissipating reproducibly below the bound.
CN12-04 CN-12 P_brain = ~20 W P_brain ~20 W human brain, ~2% body mass, ~20% of resting metabolism OBSERVED-REPLICATED (not primary-sourced in this pass) standard cerebral-metabolism references (Clarke & Sokoloff, Basic Neurochemistry) Fetch a primary calorimetric/CMR source; a value outside ~15–25 W.
CN12-05 CN-12 N_L,brain = 6.7 × 10²¹ bit-erasures/s N_L,brain 6.7 × 10²¹ bit-erasures/s ceiling: 20 W ÷ k_B T ln2 at 310 K MODELED Computed in-chapter Arithmetic error, or P_brain refuted.
CN12-06 CN-12 E_bit,syn = ~10⁴ ATP per bit E_bit,syn ~10⁴ ATP per bit chemical synapse, blowfly retina OBSERVED-REPLICATED Laughlin, de Ruyter van Steveninck & Anderson 1998, Nat Neurosci 1(1):36–41 Independent measurement >10× off under stated conditions.
CN12-07 CN-12 E_bit,graded = 10⁶–10⁷ ATP per bit E_bit,graded 10⁶–10⁷ ATP per bit graded signals in photoreceptor/interneuron, or spike coding OBSERVED-REPLICATED as above As above.
CN12-08 CN-12 r_Landauer = ~10⁵·⁵ – 10⁸·⁵ dimensionless r_Landauer ~10⁵·⁵ – 10⁸·⁵ dimensionless blowfly retina signalling (Laughlin et al. 1998) ÷ Landauer floor at 300 K; ATP at ~50 kJ/mol — the endpoint of NA-08's −47 to −50 range, which is E. coli-anchored and states no [ATP]/[ADP][Pi], pH or Mg²⁺ conditions. Assumes fly per-bit cost and bacterial ΔG generalise to mammalian neural signalling: an assumption, not a measurement MODELED Computed in-chapter from Laughlin et al. 1998 + NA-08 ΔG_ATP Arithmetic error; a different ATP free energy; or a mammalian ATP/bit measurement >10× off the fly value.
CN12-09 CN-12 'orders above Landauer' as a single figure — no value carried 'orders above Landauer' as a single figure depends entirely on what counts as one bit operation in a brain NOT-MEASURED Define and measure a brain's irreversible-operation count.
CN12-10 CN-12 c²/h = 1.36 × 10⁵⁰ bits·s⁻¹·kg⁻¹ c²/h 1.36 × 10⁵⁰ bits·s⁻¹·kg⁻¹ Bremermann's limit MODELED (computed) Bremermann 1962, Self-Organizing Systems; c, h exact per SI 2019 Arithmetic error.
CN12-11 CN-12 m_brain = ~1.4 kg m_brain ~1.4 kg adult human brain mass, as used for the Bremermann figure OBSERVED-REPLICATED (standard reference; not primary-sourced in this pass) standard anatomical references Fetch a primary source; a value outside ~1.2–1.5 kg.
CN12-12 CN-12 d_Bremermann = ~28 to ~37 orders of magnitude d_Bremermann ~28 to ~37 orders of magnitude distance from c²/h × 1.4 kg down to a brain — ~28 vs Accounting A's ceiling, ~34–37 vs Accounting B's measured per-bit costs MODELED (computed) Computed in-chapter Arithmetic error; or a declared accounting landing outside ~28–37.
CN12-13 CN-12 'orders below Bremermann' as a single figure — no value carried 'orders below Bremermann' as a single figure like r_Landauer, it is fixed only once a bit-accounting is chosen NOT-MEASURED Declare an accounting. Any bare figure (a '~39' follows from an undeclared ~10¹¹ bits/s) is a choice, not a measurement.
CN12-14 CN-12 v_myel = up to 150 m/s v_myel up to 150 m/s myelinated axons OBSERVED-REPLICATED Purves et al. 2001, Neuroscience 2nd ed., Sinauer Measurement outside stated range.
CN12-15 CN-12 v_unmyel = 0.5–10 m/s v_unmyel 0.5–10 m/s unmyelinated axons OBSERVED-REPLICATED as above As above.
CN12-16 CN-12 v ∝ d = linear v ∝ d linear conduction velocity vs outer diameter, myelinated OBSERVED-REPLICATED Hursh 1939, Am J Physiol 127(1):131–139; Gasser & Grundfest 1939 A myelinated preparation with non-linear v(d).
CN12-17 CN-12 v ∝ d constant — no value carried v ∝ d constant m·s⁻¹·µm⁻¹ the proportionality constant NOT-SOURCED in this pass not confirmed here Fetch Hursh 1939 and read the fitted slope.
CN12-18 CN-12 τ_callosal = 3–9 ms τ_callosal 3–9 ms fastest cross-brain time, 95th-percentile axons, 14 anthropoid primates over a 97-fold brain-mass range OBSERVED-REPLICATED Phillips et al. 2015, Proc R Soc B 282:20151535 (corr. 282:20152620) An anthropoid with 95th-percentile cross-brain time outside 3–9 ms.
CN12-19 CN-12 τ_callosal,median = 11–38 ms τ_callosal,median 11–38 ms cross-brain conduction time for median axon diameters, same 14 anthropoid primates — the bulk of interhemispheric traffic OBSERVED-REPLICATED Phillips et al. 2015 An anthropoid with median cross-brain time outside 11–38 ms.
CN12-20 CN-12 d_callosal = majority < 1 µm d_callosal majority < 1 µm callosal myelinated axons, all 14 species OBSERVED-REPLICATED Phillips et al. 2015 A species with majority > 1 µm.
CN12-21 CN-12 W ∝ G^(4/3) = 4/3 (less a small cortical-thickness correction) dimensionless exponent W ∝ G^(4/3) 4/3 (less a small cortical-thickness correction) dimensionless exponent white vs grey matter, mammals, several orders of magnitude OBSERVED-REPLICATED Zhang & Sejnowski 2000, PNAS 97:5621–5626 A mammalian dataset fitting a materially different exponent.
CN12-22 CN-12 V_wire ∝ R⁶ = 6 dimensionless exponent V_wire ∝ R⁶ 6 dimensionless exponent crude model: wiring volume to hold τ fixed as R grows; assumes fixed fraction of long-range neurons, linear v(d), spherical brain MODELED Computed in-chapter; cf. Zhang & Sejnowski's more careful 4/3 derivation The assumptions — chiefly fixed fraction of long-range neurons, which modular brains violate by design.
CN12-23 CN-12 L_crossbrain = ~0.1 m L_crossbrain ~0.1 m human cross-brain path, order-of-magnitude NOT-SOURCED estimate only Measure a callosal path length.
CN12-24 CN-12 N_neur,human = 86 × 10⁹ (cortex ~16 × 10⁹) neurons N_neur,human 86 × 10⁹ (cortex ~16 × 10⁹) neurons human brain, isotropic fractionator OBSERVED-REPLICATED Azevedo et al. 2009, J Comp Neurol 513(5):532–541 Independent count >2× off.
CN12-25 CN-12 N_neur,elephant = 257 × 10⁹ total; 251 × 10⁹ (97.5%) in cerebellum; cortex 5.6 × 10⁹ neurons N_neur,elephant 257 × 10⁹ total; 251 × 10⁹ (97.5%) in cerebellum; cortex 5.6 × 10⁹ neurons African elephant OBSERVED-REPLICATED Herculano-Houzel et al. 2014, Front Neuroanat 8:46 Independent count >2× off.
CN12-26 CN-12 N_neocort,pilot whale = ~37.2 × 10⁹ neocortical neurons N_neocort,pilot whale ~37.2 × 10⁹ neocortical neurons long-finned pilot whale — ~2× the human figure OBSERVED-REPLICATED Mortensen et al. 2014, Front Neuroanat 8:132 Independent count >2× off.
CN12-27 CN-12 neuron count ⇒ cognition — no value carried neuron count ⇒ cognition Herculano-Houzel 2014 and Mortensen 2014 draw opposite conclusions from compatible counts OBSERVED-CONTESTED Herculano-Houzel et al. 2014; Mortensen et al. 2014 A measure resolving both under one framework. Do not average.
CN12-28 CN-12 EQ as predictor = not strongly correlated with cognitive performance; absolute brain size predicts best; no neocortex advantage EQ as predictor not strongly correlated with cognitive performance; absolute brain size predicts best; no neocortex advantage meta-analysis across non-human primates OBSERVED-REPLICATED Deaner, Isler, Burkart & van Schaik 2007, Brain Behav Evol 70(2):115–124 An independent primate meta-analysis where EQ outperforms absolute size.
CN12-29 CN-12 EQ constants — no value carried EQ constants fitted exponent + coefficient are choices; EQ undefined until declared NOT-SOURCED in this pass Jerison 1973 not fetched Fetch Jerison 1973 and read the fitted allometry.
CN12-30 CN-12 B_sensory = ~10⁹ bits/s B_sensory ~10⁹ bits/s human sensory data-gathering MODELED Zheng & Meister 2025, Neuron 113(2) Recompute from receptor counts and rates.
CN12-31 CN-12 B_behaviour = ~10 bits/s B_behaviour ~10 bits/s human behavioural throughput — a literature synthesis, not a new experiment: same paper and same method as B_sensory MODELED-CONTESTED Zheng & Meister 2025, Neuron 113(2) (Perspective); contested by Sauerbrei & Pruszynski 2025, Nat Neurosci ('The brain works at more than 10 bits per second') Carry both. A measure reconciling cognitive throughput and motor control under one accounting.
CN12-32 CN-12 '40–60 bits/s' conscious bandwidth = do not quote as fact bits/s '40–60 bits/s' conscious bandwidth do not quote as fact bits/s value drifts 16/20/40/60 across retellings of one estimate INADMISSIBLE as a measurement (admissible as an estimate, attributed) Zimmermann via Nørretranders 1991, The User Illusion Locate the primary experiment and its stated CI.
CN12-33 CN-12 expensive-tissue hypothesis = brain size not negatively correlated with gut (or any expensive organ) across 100 mammals / 23 primates, controlling fat-free body mass; brain is negatively correlated with adipose depots expensive-tissue hypothesis brain size not negatively correlated with gut (or any expensive organ) across 100 mammals / 23 primates, controlling fat-free body mass; brain is negatively correlated with adipose depots mammals OBSERVED-CONTESTED Aiello & Wheeler 1995, Curr Anthropol 36(2):199–221 (proposed); Navarrete, van Schaik & Isler 2011, Nature 480:91–93 (disconfirmed in mammals); Liao et al. 2016, Am Nat 188(6):693–700 (supported within 30 anurans) Resolve the taxon split. Do not cite Aiello & Wheeler without Navarrete et al.
CN12-34 CN-12 n_gen,Rice&Salt 1988 = 25 generations n_gen,Rice&Salt 1988 25 generations D. melanogaster, disruptive selection on habitat preference → pre-zygotic isolation OBSERVED-SINGLE (count secondary-sourced in this pass — primary paywalled) Rice & Salt 1988, Am Nat 131:911–917 (DOI 10.1086/284831); count per TalkOrigins speciation FAQ and Wikipedia, which agree Fetch Rice & Salt 1988 and read the stated count; a primary count ≠ 25.
CN12-35 CN-12 n_gen,Rice&Salt 1990 = 35 generations n_gen,Rice&Salt 1990 35 generations D. melanogaster, complex habitat maze, sympatric; complete reproductive isolation as a correlated character OBSERVED-REPLICATED Rice & Salt 1990, Evolution 44:1140–1152 — the paper's own abstract states a 35-generation experiment (PMID 28563894) Replicated failure under equivalent selection; a primary count ≠ 35.
CN12-36 CN-12 n_gen,Rice&Salt as one merged figure — no value carried n_gen,Rice&Salt as one merged figure the 1988 and 1990 experiments ran different lengths under different designs INADMISSIBLE — do not merge Any single generation count offered for 'the Rice & Salt experiment' without naming which of 1988 / 1990 it belongs to.
CN12-37 CN-12 N_FlyWire = 139,255 neurons; >50 × 10⁶ synapses N_FlyWire 139,255 neurons; >50 × 10⁶ synapses complete adult Drosophila connectome, proofread OBSERVED-REPLICATED Dorkenwald et al. 2024, Nature Independent reconstruction differing materially.
CN12-38 CN-12 'more evolved' — no value carried 'more evolved' no environment-independent scalar exists INADMISSIBLE Gould 1996, Full House Specify an environment-independent measurable. None is known.
CN12-39 CN-12 degree of internal generative model — no value carried degree of internal generative model as a scalar, for any organism NOT-MEASURED Define it operationally and measure it on two species.
CN12-40 CN-12 doctrine row 'D3-08' — no value carried doctrine row 'D3-08' cited in this chapter's commissioning brief NOT-LOCATED grep of uni-onchip/design/ found no such row Produce the row, or correct the citation to the located rows (10-DOCTRINA-V2.md:461, :267; 12-FALSIFIERS-V2.md:15; D6-R7).
CN12-41 CN-12 anima in silicio? / silicium ut aqua? — no value carried anima in silicio? / silicium ut aqua? QUAESTIONES APERTAE register, extra Arborem NONDUM FALSIFICABILIS (register status; carried, not classed) uni-onchip/design/11-VALIDATIO-RECEIPT.md:21 None offered. That is why they are in a register and not a ledger.

5. Counts by class

Total rows: 919, across 23 chapters (NA-00…NA-10, CN-01…CN-12).

Counted 2026-07-15, post-amendment, by ../tools/verify_class_vocabulary.py. Every number below is machine-counted from the rows in §4, not asserted. Re-run the verifier and it must reproduce them exactly; if it does not, this section is wrong and the rows win.

5.1 By class (all twelve registered classes)

Rows are counted at their leading class token (the compound-row convention, §1).

Group A — measured

Class Rows % of ledger
OBSERVED-REPLICATED 438 47.7%
OBSERVED-SINGLE 42 4.6%
OBSERVED-CONTESTED 98 10.7%
— group A subtotal — 578 62.9%

Group B — derived

Class Rows % of ledger
MODELED 251 27.3%
MODELED-CONTESTED 1 0.1%
HYPOTHESIZED 5 0.5%
— group B subtotal — 257 28.0%

Group C — fenced

Class Rows % of ledger
INADMISSIBLE 16 1.7%
SUPERSEDED 3 0.3%
NOT-MEASURED 39 4.2%
NOT-SOURCED 20 2.2%
NOT-CONFIRMED 1 0.1%
NOT-LOCATED 1 0.1%
— group C subtotal — 80 8.7%

Carried, not classed (the four named rows of §1 — not a class, and deliberately not counted as one)

Rows % of ledger
NA03-16 · CN04-22 · CN11-59 · CN12-41 4 0.4%

Reconciliation — 578 + 257 + 80 + 4 = 919.

5.2 Out-of-vocabulary rows — 0 of 919

Rows
Rows carrying a class string outside the registered vocabulary 0
Rows placed in a registered class 915
Rows registered as deliberately unclassed 4
— total — 919

This section previously carried a table of 72 out-of-vocabulary rows (the defect, §3). Where those 72 went, in full:

Was written as Rows Now
OBSERVED (bare / unreplicated) 42 re-classedOBSERVED-SINGLE
NOT-SOURCED 20 registered as-isNOT-SOURCED (1 cell re-ordered to lead with the token)
NEGATIVE 3 re-classedSUPERSEDED (the token NEGATIVE is UNI-side; §3)
MODELED-CONTESTED 1 registered as-is
NOT-CONFIRMED 1 registered as-is
NOT-LOCATED 1 registered as-is
HONEST-class 1 not a NATURA classCN11-59, an HONEST signal, never calibrated
NONDUM FALSIFICABILIS 1 not a classCN12-41, a register status, extra Arborem
no class carried 1 deliberately unclassedCN04-22, a prediction, not a measurement
no evidence class (definitional convention) 1 deliberately unclassedNA03-16, definitional
— total — 72 68 registered + 4 deliberately unclassed

The arithmetic that shows nothing was invented: the six canonical classes totalled 847 as published at §5.1 before the amendment, and total 847 after. Every re-class relabelled a row that was already outside the six, to the class that was always true of it. Not one row changed evidentiary standing; not one row left the six. No value, source, or falsifier changed in any row — machine-checked across all 919 rows and all 10 columns.

The one counting subtlety, disclosed. Under a strict leading-token count the old text yields 846, not 847. The single difference is CN05-31, whose class cell read "rung MODELED; overall band OBSERVED-REPLICATED" — a compound that does not begin with a class token and so does not parse mechanically. The published §5.1 counted it at MODELED anyway (its 251 included it), which is why the published subtotal was 847. The amendment re-ordered the cell to "MODELED (the ladder rung); OBSERVED-REPLICATED (the overall band)" so that it parses as what it was always counted as. Value, source, falsifier and evidentiary standing are untouched; only word order moved. This is printed because a subtotal that looks stable at 847 under one rule and moves 846→847 under another must have the difference named — otherwise the stability is an illusion the reader has no way to audit, and this ledger would be asserting its own correctness rather than showing it.

5.3 Rows per chapter

Chapter Rows Chapter Rows
NA-00 17 CN-02 45
NA-01 18 CN-03 80
NA-02 11 CN-04 45
NA-03 16 CN-05 62
NA-04 14 CN-06 39
NA-05 47 CN-07 38
NA-06 24 CN-08 56
NA-07 30 CN-09 67
NA-08 49 CN-10 53
NA-09 18 CN-11 59
NA-10 47 CN-12 41
CN-01 43

6. Standing fences carried from the wing

  • RES IPSAE, NON SIMULACRA. Every value carries a real citation, or it is written NOT-MEASURED. There is no third state. A plausible-sounding number with no source is the worst defect available in this wing.
  • Every numeric claim carries value + units + scope + class + source + falsifier. A number without units or scope is a defect. A rate without its condition is not a number.
  • SIGNUM SIGNUM MANET. The measured value and the commentary about it travel separately.
  • TRUE vs HONEST stay sovereign. A chakra-frequency table is INADMISSIBLE as physics and may be recorded as an HONEST/cultural signal — never as a TRUE/measured one, and never converted. CN-11's first-person testimony row is the wing's only HONEST-class row and is never calibrated.
  • Nature as authority, stated precisely: nature is the authority because it has already run the experiment — a long parallel search under real physical constraints in which the failures were deleted. Convergence is evidence of a constraint-optimum.
  • The mandatory counterweight, travelling with it everywhere: Gould & Lewontin (1979), Proc. R. Soc. Lond. B 205(1161):581–598 — not every trait is an adaptation. Therefore "nature does it this way" is a hypothesis generator, never a proof, and a biomimetic design must still beat a tuned conventional baseline on a pre-registered metric (rule M7) or be recorded NEGATIVE.
  • QUAESTIO-APERTA. "Full human" and "beyond human" are permanent open questions — never a target, never a milestone, never a deliverable. See CN-12 and §7 of the machine twin.

7. Machine-readable twin

../gpt/knowledge/K20-constants-ratios-and-nature-ledger.json carries the categorised view of this ledger — constants, dimensionless numbers, scaling laws, frequencies, inadmissible claims, and open questions — with every entry tracing to its chapter. Both files are generated from one extraction pass and cannot disagree.


Every row is falsifiable at its own row. Any row whose cited source does not contain its value is a defect: report it and the row is corrected or demoted to NOT-MEASURED.

sha256 e3f567a5d7005ff8 — of the original file, so what was ingested stays checkable.

Plain — written for this website, not the source document

Written for this website — not the document. This is a plain-language retelling, written to help you meet the document. It is not the source, and it is not evidence. It has not yet been checked by a person. (or choose Precise in the reading-level control above)

Nature's numbers are gathered here, and not one of them is a gate. The file says so before it says anything else: reading a published result about the natural world raises no rung on the program's own ladder. This ledger is a list rows are added to and never edited, and it contributes no evidence to what the program has built. The two records are linked by audited reference, never merged. The program's own position is untouched by every row below — a developmental simulation, a toy world, never a person.

The rest is extraction. Every numbered row from the wing's chapter tables is carried whole, with its value, units, scope, evidence class, source, and the result that would show it wrong. Values are copied as written. Ranges and live disputes stay whole and are never averaged. A row that could not be traced says exactly how it failed, because an absence in the literature and a gap in this corpus's own homework are different facts.

Plain · written 2026-08-01 by claude-opus-5 · not yet checked by a person · about the document whose sha256 is e3f567a5d7005ff8

Clear — written for this website, not the source document

Written for this website — not the document. This is a clearer retelling, written to help you meet the document. It is not the source, and it is not evidence. It has not yet been checked by a person. (or choose Precise in the reading-level control above)

Every numeric row from the nature wing's chapters is gathered into one place, so that wing has a ledger of its own, a list added to and never edited, the way the program does. This is borrowed science: other people measured it and published it, and it is quoted here. It contributes no evidence to the program's own build, which is a simulation — a toy world, not a person. The gathering is extraction only: no row was added that no chapter contains, and no value was invented, improved, averaged or completed.

Its first section is about sovereignty, and it is the reason the file exists. One ledger describes nature's regularities as measured by other people in published work. The other describes the program's own build status. They use different vocabularies and are cross-referenced only by explicit link, never merged. The cardinal rule is that a citation about nature is never a gate for the program, and no row here raises, lowers or discharges a row there.

The second section defines the classes. There are twelve, in three groups. The measured group says how much independent corroboration exists: replicated, single, or genuinely contested. The derived group says the assumptions are the limit: modelled, modelled and disputed, or hypothesised. The last group carries no usable value and says precisely why not: inadmissible as stated, superseded by its own field, never measured, not traced to a source, named but unread, or searched for and not found. Those last four are deliberately kept apart, because an absence in the literature is a fact about the world and an untraced value is a fact about this corpus.

A further section records a defect openly. The vocabulary originally had six classes, and the file's own rows refuted that, because a number of them could not be placed. The amendment that widened it is carried with the original wording struck rather than deleted, along with a later correction showing that the first amendment's scope was narrower than its record read.

The bulk of the file is then the rows themselves, chapter by chapter, followed by counts by class, the standing limits carried from the wing, and a pointer to a machine-readable twin generated from the same pass.

Clear · written 2026-08-01 by claude-opus-5 · not yet checked by a person · about the document whose sha256 is e3f567a5d7005ff8