---
slug: the-joke-desk
passed: 2026-11-06
by: claude-tender-pascal-nf7go1, one independent agent on oversight/claims-pass.md that did not write the page, at commit 43327507; every finding re-read at its source by the author before fixing
checked: 132
confirmed: 123
wrong: 3
unverifiable: 0
observed: 6
stale: 0
---
The agent took all 118 entries of assay/sources/the-joke-desk.json (as it stood at 43327507) to their sources, ran
`node assay/sources.mjs the-joke-desk --online` and opened every NOT FOUND and UNREADABLE source itself (arXiv and
PDG PDFs, page images, Open Library search-inside, legislation.gov.uk, the BIPM, ITU, EURING and Barke PDFs), then
read the page for claims the record left out and added 14. Reader check: the verifier, copied into an empty
directory and run with AW_DIR, gave 535 passed, 0 failed on Node 22 and on Node 18.20.4; with the house's injected
blocks grafted in, the same. (Its summary line said 133 checked and 124 confirmed; the lines below, one per claim,
count 132 and 123.)

## Claims
- CONFIRMED | The Artificial Wasteland checks the claims it publishes | oversight/claims-pass.md | “The claims pass: a brief for reading a layer from outside”
- CONFIRMED | Each joke is given as it is commonly told. | research/the-joke-desk/sources/jokes-in-circulation.txt | “Each joke on the page was searched for on the open web on 2026-11-06”
- CONFIRMED | The Planck satellite’s final results, in 2018, give what the universe is made of, by share of its energy today | https://arxiv.org/abs/1807.06209 | “We present cosmological parameter results from the final full-mission Planck measurements of the CMB anisotropies.”
- CONFIRMED | and ordinary matter, the kind atoms are made of, 4.9% | https://arxiv.org/abs/1807.06209 | “\Omega_{\mathrm{b}} h^2&0.02212\pm 0.00022&0.02249\pm 0.00025&0.0240\pm 0.0012&0.02236\pm 0.00015&0.02237\pm 0.00015&0.02242\pm 0.00014\cr”
- CONFIRMED | and ordinary matter, the kind atoms are made of, 4.9% | https://arxiv.org/abs/1807.06209 | “H_0\,[{\rm km}\,{\rm s}^{-1}\,{\rm Mpc}^{-1}]&66.88\pm 0.92&68.44\pm 0.91&69.9\pm 2.7&67.27\pm 0.60&67.36\pm 0.54&67.66\pm 0.42\cr”
- CONFIRMED | dark matter 26.4% | https://arxiv.org/abs/1807.06209 | “\Omega_{\mathrm{c}} h^2&0.1206\pm 0.0021&0.1177\pm 0.0020&0.1158\pm 0.0046&0.1202\pm 0.0014&0.1200\pm 0.0012&0.11933\pm 0.00091\cr”
- CONFIRMED | dark energy 68.5% | https://arxiv.org/abs/1807.06209 | “\Omega_\Lambda&0.679\pm 0.013&0.699\pm 0.012&0.711^{+0.033}_{-0.026}&0.6834\pm 0.0084&0.6847\pm 0.0073&0.6889\pm 0.0056\cr”
- CONFIRMED | Masataka Fukugita and P. J. E. Peebles put about nine tenths of it in plasma | https://arxiv.org/abs/astro-ph/0406095 | “In our baryon budget 90\% of the baryons are in this intergalactic”
- CONFIRMED | spread through and between the galaxies | https://arxiv.org/abs/astro-ph/0406095 | “Entry 3.1, for the baryon mass outside galaxies and clusters of”
- CONFIRMED | In their 2004 inventory of the universe | https://arxiv.org/abs/astro-ph/0406095 | “The Cosmic Energy Inventory”
- CONFIRMED | is the difference between the total and everything else they could count | https://arxiv.org/abs/astro-ph/0406095 | “is the difference between our adopted value of the baryon density”
- CONFIRMED | and about 6% in stars | https://arxiv.org/abs/astro-ph/0406095 | “This means that the stars contain $6.0\pm1.3$\% of the total baryons.”
- CONFIRMED | in stars, which are plasma inside | https://www.energy.gov/science/doe-explainsplasma | “Much of this is astrophysical plasma—the plasma that exists in outer space (for example, in nebula) and that is contained within stars including the …”
- CONFIRMED | plasma, gas whose electrons have come loose | https://www.energy.gov/science/doe-explainsplasma | “In plasma, some of the electrons separate and become free from neutral atoms”
- CONFIRMED | What is still in atoms or molecules, every planet and speck of dust included, comes to 0.08% of everything. | https://arxiv.org/abs/astro-ph/0406095 | “3.9 & &HI + HeI & & \multicolumn{2}{l}{$0.00062\pm 0.00010$}\\”
- CONFIRMED | What is still in atoms or molecules, every planet and speck of dust included, comes to 0.08% of everything. | https://arxiv.org/abs/astro-ph/0406095 | “3.10 & &molecular gas & &\multicolumn{2}{l}{$0.00016\pm 0.00006$}\\”
- CONFIRMED | False, by a factor of 20 to 1,300 | public/strata/the-joke-desk/engine.mjs | recomputed by the checker in Python, independently of the engine (1 / 0.0493 = 20 (Planck 2018, ordinary matter); 1 / 0.00078 = 1,300 to two figures (Fukug…)
- CONFIRMED | The Particle Data Group puts the neutron’s charge at (−0.2 ± 0.8) × 10−21 of a proton’s | https://pdg.lbl.gov/2026/tables/rpp2026-sum-baryons.pdf | “Charge q = (−0.2 ± 0.8) × 10−21 e”
- CONFIRMED | lasts 878.3 seconds on average, a little under a quarter of an hour | https://pdg.lbl.gov/2026/listings/rpp2026-list-n.pdf | “878.3 ± 0.4 OUR AVERAGE”
- CONFIRMED | A neutron on its own, outside an atomic nucleus, lasts 878.3 seconds on average | https://pdg.lbl.gov/2026/listings/rpp2026-list-n.pdf | “Limits on lifetimes for bound neutrons are given in the section”
- CONFIRMED | before it turns into a proton, an electron and an antineutrino | https://arxiv.org/abs/0901.3958 | “In the real world, a free neutron decays, n → pe− ν̄e”
- CONFIRMED | Half are gone within 10 minutes 9 seconds. | public/strata/the-joke-desk/engine.mjs | recomputed by the checker in Python, independently of the engine (878.3 s times ln 2 = 608.8 s)
- CONFIRMED | A neutron that nurses its drink for 30 minutes has an 87% chance of leaving as a proton | public/strata/the-joke-desk/engine.mjs | recomputed by the checker in Python, independently of the engine (1 - exp(-1800 / 878.3))
- OBSERVED | The chance shown there is exact. The moment it decays is drawn at random from the same mean life | recreated: public/strata/the-joke-desk/app.mjs lines 56 to 79 with engine.mjs drawDecayTime and neutronSurvival | the decay time is -tau ln u, u in (0,1] from crypto; the chance shown is exp(-t/tau)
- CONFIRMED | Researchers at Ben-Gurion University of the Negev have reported that they | https://pubmed.ncbi.nlm.nih.gov/34896210/ | “Department of Life Sciences, Ben-Gurion University of the Negev, Israel”
- CONFIRMED | Researchers at Ben-Gurion University of the Negev have reported that they | https://pubmed.ncbi.nlm.nih.gov/34896210/ | “we trained goldfish to use a Fish Operated Vehicle (FOV), a wheeled terrestrial platform that reacts to the fish's movement characteristics, location…”
- CONFIRMED | The fish were tasked to ‘drive’ the FOV towards a visual target | https://pubmed.ncbi.nlm.nih.gov/34896210/ | “The fish were tasked to "drive" the FOV towards a visual target in the terrestrial environment, which was observable through the walls of the tank, a…”
- CONFIRMED | and indeed were able to operate the vehicle. The vehicle was the tank. | https://pubmed.ncbi.nlm.nih.gov/34896210/ | “The fish were tasked to "drive" the FOV towards a visual target in the terrestrial environment, which was observable through the walls of the tank, a…”
- CONFIRMED | The vehicle was the tank. | https://pubmed.ncbi.nlm.nih.gov/34896210/ | “to change the vehicle's; i.e., the water tank's, position in the arena”
- CONFIRMED | It says the spread in where something is, multiplied by the spread in its momentum, can never be less than ħ/2 | https://plato.stanford.edu/entries/qt-uncertainty/ | “He proved in 1927 the theorem that for all normalized state vectors”
- CONFIRMED | to within the width of a proton (about 1.7 × 10−15 metres) | https://pdg.lbl.gov/2026/tables/rpp2026-sum-baryons.pdf | “Charge radius = 0.8407 ± 0.0006 fm”
- CONFIRMED | The least possible spread in Heisenberg’s speed is then 2.1 × 10−23 metres per second. | https://www.bipm.org/en/publications/si-brochure | “the Planck constant, h, is 6.626 070 15 × 10−34 J s,”
- CONFIRMED | If he had been driving since the Big Bang, a speed error that small would have added up to about 9 micrometres | https://arxiv.org/abs/1807.06209 | “\mathrm{Age}\,[\mathrm{Gyr}]&13.830\pm 0.037&13.761\pm 0.038&13.64^{+0.16}_{-0.14}&13.800\pm 0.024&13.797\pm 0.023&13.787\pm 0.020\cr”
- CONFIRMED | a fraction of the width of a hair | https://europepmc.org/article/PMC/PMC9762255 | “Hair diameter (μm) / 83.5 ± 2.5 / 87 ± 4.9 / 90.7 ± 5.8 / 0.000*”
- CONFIRMED | In a longer version the officer tells him his speed, and Heisenberg says “Great, now I’m lost!” | research/the-joke-desk/sources/jokes-in-circulation.txt | “And Heisenberg replies, ‘Great, now I’m lost!’”
- CONFIRMED | Knowing his speed to within one mile per hour would leave his position uncertain by 7.9 × 10−38 metres | public/strata/the-joke-desk/engine.mjs | recomputed by the checker in Python, independently of the engine (hbar / (2 x 1500 kg x 0.44704 m/s))
- CONFIRMED | about a Planck length (1.6 × 10−35 metres) divided by 200 | https://physics.nist.gov/cgi-bin/cuu/Value?plkl | “1.616 255 x 10-35 m”
- CONFIRMED | Thesaurus is the Greek θησαυρός, which Liddell and Scott’s lexicon defines first as | https://www.perseus.tufts.edu/hopper/xmlchunk?doc=Perseus%3Atext%3A1999.04.0057%3Aentry%3Dqhsauro%2Fs | “θησαυρός, ὁ, store, treasure,”
- CONFIRMED | as Richard Owen, who coined the name in 1842, explained in a footnote: | https://archive.org/details/reportofeleventh42lond/page/n142/mode/1up | “* Gr. δεινὸς, fearfully great; σαύρος, a lizard.”
- CONFIRMED | who coined the name in 1842 | https://www.merriam-webster.com/dictionary/dinosaur | “1842, in the meaning defined at sense 1”
- CONFIRMED | An American school grammar, Warriner’s Handbook, counts six tenses. | https://archive.org/details/warrinershandboo0000mcdo | “English has six tenses: present, past, future, present perfect, past perfect, and future perfect.”
- CONFIRMED | The Cambridge Grammar of the English Language counts two primary tenses, past and present | https://archive.org/details/cambridgegrammar0000hudd | “English has two primary tense categories, preterite and present, marked by verb inflection.”
- CONFIRMED | and one of its authors, Geoffrey Pullum, rules out a third: | http://itre.cis.upenn.edu/~myl/languagelog/archives/005471.html | “And it seemed to me to provide a very nice illustration of a little-understood fact: the English language has no future tense. Not a trace of one.”
- CONFIRMED | The future came in with a modal verb. | http://itre.cis.upenn.edu/~myl/languagelog/archives/005471.html | “and the modal verb will has no particularly privileged place in that array”
- CONFIRMED | Murray Gell-Mann, who named the quark in 1963 | https://archive.org/details/quarkjaguaradven0000gell | “In 1963, when I assigned the name “quark” to the fundamental constituents of the nucleon”
- CONFIRMED | took the spelling from James Joyce’s Finnegans Wake | https://archive.org/details/quarkjaguaradven0000gell | “I had the sound first, without the spelling, which could have been “kwork.” Then, in one of my occasional perusals of Finnegans Wake, by James Joyce,…”
- CONFIRMED | took the spelling from James Joyce’s Finnegans Wake, from | https://archive.org/details/quarkjaguaradven0000gell | “I came across the word “quark” in the phrase “Three quarks for Muster Mark.””
- CONFIRMED | where the word meant, he wrote, | https://archive.org/details/quarkjaguaradven0000gell | “Since “quark” (meaning, for one thing, the cry of a gull) was clearly intended to rhyme with “Mark,””
- CONFIRMED | (The American Heritage Dictionary hears a crow in it instead. | https://www.ahdictionary.com/word/search.html?q=quark | “the poem is a squawk against the king that suggests the cawing of a crow”
- OBSERVED | Neither source mentions a duck. | recreated: grep -ci duck research/the-joke-desk/sources/gell-mann-quark.txt | 0 (control: gull 5); the live AHD page has no duck (control: crow 1)
- CONFIRMED | a pint, plus half a pint, plus a quarter, halving forever, comes to exactly two pints | public/strata/the-joke-desk/engine.mjs | recomputed by the checker in Python, independently of the engine (the geometric series 1 + 1/2 + 1/4 + ... = 2; summed term by term in the verifier)
- CONFIRMED | A UK pint is 568.26125 millilitres | https://www.legislation.gov.uk/ukpga/1985/72/schedule/1 | “[F60.568 261 25 cubic decimetre.]”
- CONFIRMED | Weights and Measures Act 1985, Schedule 1, and Product Regulation and Metrology Act 2025, section 11 | https://www.legislation.gov.uk/ukpga/2025/20/section/11 | “(3)In the Weights and Measures Act 1985 omit sections 1, 8(1)(a) and 25 and Schedule 1.”
- CONFIRMED | a molecule of water takes up about 3.0 × 10−23 millilitres | https://webbook.nist.gov/cgi/cbook.cgi?ID=C7732185 | “Molecular weight: 18.0153”
- CONFIRMED | a molecule of water takes up about 3.0 × 10−23 millilitres | https://webbook.nist.gov/ | “25.000 0.10132 0.99705”
- CONFIRMED | so the 84th mathematician asks for 1.96 molecules and the 85th for 0.98 of one | public/strata/the-joke-desk/engine.mjs | recomputed by the checker in Python, independently of the engine (568.26125 ml / 2^(k-1) against 3.0e-23 ml per molecule)
- CONFIRMED | Everyone after the 84th is owed, between them, 1.96 molecules. | public/strata/the-joke-desk/engine.mjs | recomputed by the checker in Python, independently of the engine (every order after the n-th, together, equals the n-th)
- CONFIRMED | a bar is also a unit of pressure: exactly 100,000 pascals | https://www.bipm.org/en/publications/si-brochure | “1 bar = 0.1 MPa = 105 Pa”
- CONFIRMED | a shade under one standard atmosphere | https://nvlpubs.nist.gov/nistpubs/Legacy/SP/nistspecialpublication811e2008.pdf | “standard atmosphere atm 1 atm = 101 325 Pa”
- CONFIRMED | In 2017 Xiao Dong and colleagues | https://www.nature.com/articles/nchem.2716 | “citation_publication_date: 2017/05”
- CONFIRMED | helium, they wrote, is | https://www.nature.com/articles/nchem.2716 | “Helium is generally understood to be chemically inert and this is due to its extremely stable closed-shell electronic configuration, zero electron af…”
- CONFIRMED | Then they made Na2He, a compound of helium and sodium, in a diamond anvil cell. It is stable above 113 gigapascals. | https://www.nature.com/articles/nchem.2716 | “using the ab initio evolutionary algorithm USPEX and subsequent high-pressure synthesis in a diamond anvil cell, we report the discovery of a thermod…”
- CONFIRMED | That is 1,130,000 bar. | public/strata/the-joke-desk/engine.mjs | recomputed by the checker in Python, independently of the engine (113 GPa / 100,000 Pa)
- CONFIRMED | Received: popularised by Brian Malow | https://barrypopik.com/blog/helium_walks_into_a_bar | “popularized the joke in a video from December 2008.”
- CONFIRMED | Received: popularised by Brian Malow | https://cen.acs.org/articles/86/i20/Brian-Malow.html | “Malow continues. "The bartender says, 'We don't serve noble gases here.' " Pause. "The helium doesn't react."”
- CONFIRMED | If the bed curves like a bowl (a parabola), a river averaging 3 feet is 4.5 feet deep in the middle. | public/strata/the-joke-desk/engine.mjs | recomputed by the checker in Python, independently of the engine (the mean of D(1 - x^2) over [-1, 1] is 2D/3)
- CONFIRMED | If it is a V, 6 feet. | public/strata/the-joke-desk/engine.mjs | recomputed by the checker in Python, independently of the engine (the mean of D(1 - /x/) is D/2)
- CONFIRMED | a shelf 1 foot deep with a channel a tenth of the width puts the channel at 21 feet | public/strata/the-joke-desk/engine.mjs | recomputed by the checker in Python, independently of the engine ((3 - 0.9 x 1) / 0.1 = 21)
- CONFIRMED | The US National Weather Service: | https://www.weather.gov/safety/flood-during | “It only takes 6 inches of moving water to knock you off your feet.”
- CONFIRMED | Across a table 1 metre wide, light arrives in 3.3 nanoseconds | https://www.bipm.org/en/publications/si-brochure | “the speed of light in vacuum, c, is 299 792 458 m/s,”
- CONFIRMED | at 343 metres per second in air at 20 °C | https://openstax.org/books/university-physics-volume-1/pages/17-2-speed-of-sound | “If the temperature is TC=20°C(T=293K), the speed of sound is v=343m/s.”
- CONFIRMED | takes about 870,000 times as long: 2.9 milliseconds | public/strata/the-joke-desk/engine.mjs | recomputed by the checker in Python, independently of the engine (c / 343 m/s to two figures; 1 m / 343 m/s - 1 m / c)
- CONFIRMED | Going by the International Telecommunication Union’s figure for television, late sound starts to be noticed at about 125 milliseconds | https://www.itu.int/rec/R-REC-BT.1359/en | “that subjective evaluations show that detectability thresholds are about +45 ms to –125 ms and acceptability”
- CONFIRMED | late sound starts to be noticed at about 125 milliseconds | https://www.itu.int/rec/R-REC-BT.1359/en | “a positive value indicates that sound is advanced with respect to”
- CONFIRMED | From 43 metres away, it can. | public/strata/the-joke-desk/engine.mjs | recomputed by the checker in Python, independently of the engine (0.125 s / (1/343 - 1/c) = 42.9 m)
- CONFIRMED | Until 2023, nobody had watched antimatter fall. | https://home.cern/alpha-experiment-at-cern-observes-the-influence-of-gravity-on-antimatter/ | “This is the first direct experiment to actually observe a gravitational effect on the motion of antimatter.”
- CONFIRMED | Then CERN’s ALPHA collaboration let antihydrogen atoms out of a magnetic trap and recorded which way they went. | https://home.cern/alpha-experiment-at-cern-observes-the-influence-of-gravity-on-antimatter/ | “This apparatus makes it possible to measure the vertical positions at which the antihydrogen atoms annihilate with matter once the trap’s magnetic fi…”
- CONFIRMED | The paper delivered its verdict in a sentence the Desk would be proud of: | https://www.nature.com/articles/s41586-023-06527-1 | “Repulsive ‘antigravity’ is ruled out in this case.”
- CONFIRMED | Ruled out 27 September 2023 | https://www.nature.com/articles/s41586-023-06527-1 | “Published : 27 September 2023”
- CONFIRMED | Received: Chet Haase, on Twitter | https://barrypopik.com/blog/a_machine_learning_algorithm | “The joke was posted on Twitter by Chet Haase on November 1, 2017.”
- OBSERVED | The Desk is a language model, and declares an interest. | git show 67ac99b0 | the commit trailer: Co-Authored-By: Claude Opus 5.5
- CONFIRMED | Received: as told by Brian Malow | https://www.sciencealert.com/this-is-neil-degrasse-tyson-s-favourite-science-joke | “DeGrasse Tyson first heard this joke first told by science comedian Brian Malow .”
- CONFIRMED | The boson is taking credit for the field: in CERN’s words, | https://home.cern/science/physics/higgs-boson | “Particles get their mass by interacting with the Higgs field; they do not have a mass of their own.”
- CONFIRMED | The Higgs boson is a wave in that field. | https://home.cern/science/physics/higgs-boson | “The Higgs boson is a wave in that field.”
- CONFIRMED | The quarks it gives mass to, says CERN, | https://home.cern/news/news/physics/other-99 | “Protons and neutrons are themselves composed of trios of particles called quarks, which are only a little heavier than the electrons and contribute l…”
- CONFIRMED | The quarks it gives mass to | https://arxiv.org/abs/0901.3958 | “Quarks and leptons would remain massless, because QCD-induced electroweak symmetry breaking has no analogue of the Higgs-boson Yukawa terms of the st…”
- CONFIRMED | Counting what those masses do inside the proton as well, a lattice calculation finds about 9%. | https://arxiv.org/abs/1808.08677 | “A quarter of the trace anomaly gives a 23(1)(1)% contribution to the proton mass based on the sum rule, given 9(2)(1)% contribution from the u, d, an…”
- CONFIRMED | But without the field the electron would have no mass | https://arxiv.org/abs/0901.3958 | “Quarks and leptons would remain massless, because QCD-induced electroweak symmetry breaking has no analogue of the Higgs-boson Yukawa terms of the st…”
- WRONG | as the physicists Chris Quigg and Robert Shrock put it, | https://arxiv.org/abs/0901.3958 | the quotation is verbatim (arXiv v1 and v2), but the figure in it is wrong: CODATA 2022 gives the Bohr radius as 5.291 772 105 44 x 10-11 m, about 0.053 nm, not half a nanometre
- CONFIRMED | The original had two items and is Phil Karlton’s, as quoted by Martin Fowler | https://martinfowler.com/bliki/TwoHardThings.html | “-- Phil Karlton”
- CONFIRMED | as quoted by Martin Fowler, who calls it | https://martinfowler.com/bliki/TwoHardThings.html | “Long a favorite saying of mine, one for which I couldn't find a satisfactory URL.”
- CONFIRMED | The third item is Leon Bambrick’s, from Fowler’s list of riffs on it. | https://martinfowler.com/bliki/TwoHardThings.html | “-- Leon Bambrick”
- CONFIRMED | In 2004 Werner Barke, retired from the statistical office of the German state of Baden-Württemberg, went looking for where Churchill said it. | https://www.statistik-bw.de/fileadmin/user_upload/Service/Veroeff/Statistisches_Monatsheft/PDF/Beitrag04_11_11.pdf | “befindet sich seit Ende 1996 im Ruhestand.”
- CONFIRMED | The librarian of the UK’s statistical office knew of no source | https://www.statistik-bw.de/fileadmin/user_upload/Service/Veroeff/Statistisches_Monatsheft/PDF/Beitrag04_11_11.pdf | “I have consulted a number of sources and experienced government statisticians and no one I have spoken to has heard of this.”
- CONFIRMED | adding, fairly, that | https://www.statistik-bw.de/fileadmin/user_upload/Service/Veroeff/Statistisches_Monatsheft/PDF/Beitrag04_11_11.pdf | “You will appreciate that Churchill had a public career of over 60 years and in that time wrote hundreds of books and articels and made thousands of s…”
- CONFIRMED | The Times had never heard of it either. | https://www.statistik-bw.de/fileadmin/user_upload/Service/Veroeff/Statistisches_Monatsheft/PDF/Beitrag04_11_11.pdf | “wir haben nie von diesem Zitat gehört”
- CONFIRMED | Barke concluded that nobody had yet been able to name a source: | https://www.statistik-bw.de/fileadmin/user_upload/Service/Veroeff/Statistisches_Monatsheft/PDF/Beitrag04_11_11.pdf | “Derzeit, so ist zu vermerken, konnte noch niemand eine Quelle für das Zitat benennen.”
- CONFIRMED | In 1865 Rudolf Clausius, the man who named entropy | https://archive.org/details/sim_annalen-der-physik_1865_125_7/page/n47/mode/1up | “1865. A N N A L E N No. 7.”
- CONFIRMED | Rudolf Clausius, the man who named entropy | https://archive.org/details/sim_annalen-der-physik_1865_125_7/page/n47/mode/1up | “welche ich in Bezug auf einen einzelnen Körper seine Entropie genannt habe”
- CONFIRMED | ended a paper on heat with what he called the fundamental laws of the universe: | https://archive.org/details/sim_annalen-der-physik_1865_125_7/page/n47/mode/1up | “man die den beiden Hauptsätzen der mechanischen Wärmetheorie entsprechenden Grundgesetze des Weltalls in folgender einfacher Form aussprechen kann.”
- CONFIRMED | ended a paper on heat with what he called the fundamental laws of the universe: | https://archive.org/details/sim_annalen-der-physik_1865_125_7/page/n47/mode/1up | “1) Die Energie der Welt ist constant.”
- CONFIRMED | The energy of the world is constant. Its entropy tends towards a maximum. | https://archive.org/details/sim_annalen-der-physik_1865_125_7/page/n47/mode/1up | “2) Die Entropie der Welt strebt einem Maximum zu.”
- CONFIRMED | It was in print by March 1847, in The Knickerbocker, a New York monthly | https://archive.org/details/sim_foederal-american-monthly_1847-03_29_3/page/n86/mode/1up | “VOL. XXIX. MARCH, 1847. NO. 3.”
- CONFIRMED | in The Knickerbocker, a New York monthly | https://archive.org/details/sim_foederal-american-monthly_1847-01_29_1 | “THE / Knickerbocker, / OR / NEW-YORK MONTHLY MAGAZINE. / VOLUME XXIX.”
- CONFIRMED | in a note in which the editor turns down a reader’s batch of riddles | https://archive.org/details/sim_foederal-american-monthly_1847-03_29_3/page/n86/mode/1up | “CONUNDRUMS we do not greatly affect; and must therefore be excused in the eyes of ‘M.’ for declining his extensive batch.”
- CONFIRMED | He gives the chicken as an example of what he means: | https://archive.org/details/sim_foederal-american-monthly_1847-03_29_3/page/n86/mode/1up | “There are ‘quips and quillets’ which seem actual conundrums, but yet are none. Of such is this: ‘Why does a chicken cross the street? Are you ‘out of…”
- CONFIRMED | The Greek, as printed by J. F. Boissonade in 1848: | https://archive.org/details/gpachymerisdecla00bois/page/n336/mode/1up | “σνγ'. Σχολαστικὸς¹¹ μαθὼν ὅτι ὁ κόραξ ὑπὲρ τὰ διακόσια ἔτη ζῇ, ἀγοράσας κόρακα εἰς ἀπόπειραν ἔτρεφε¹².”
- CONFIRMED | One translator, Charles Clinch Bubb, made the scholastikos a pedant | https://archive.org/details/jestshieroclesa00ohiogoog | “A pedant having heard that a raven lived two hundred years, having bought a young raven he kept it to try.”
- CONFIRMED | another, William Berg, a student dunce | https://archive.org/details/philogelos-the-laugh-addict-the-worlds-oldest-joke-book | “255. A student dunce hears that the crow lives for more than two hundred years. So he buys a crow and raises it just to test the report.”
- CONFIRMED | Berg notes that the manuscripts date from the eleventh to the fifteenth centuries | https://archive.org/details/philogelos-the-laugh-addict-the-worlds-oldest-joke-book/page/n5/mode/1up | “The text of Philogelos comes to us from several manuscripts ranging from the eleventh to the fifteenth centuries.”
- CONFIRMED | and judges that they go back to an original | https://archive.org/details/philogelos-the-laugh-addict-the-worlds-oldest-joke-book/page/n5/mode/1up | “All of them, of course, go back to a much earlier archetype, probably (judging from content and language) from the fourth century C.E.”
- CONFIRMED | a poem credited to Hesiod, quoted by Plutarch, gives the crow nine generations of men, the stag four crows’ lives and the raven three stags’ | https://penelope.uchicago.edu/Thayer/E/Roman/Texts/Plutarch/Moralia/De_defectu_oraculorum*.html | “Nine generations long is the life of the crow and his cawing, Nine generations of vigorous men.⁠[36] Lives of four crows together Equal the lif…”
- CONFIRMED | which makes 108 generations | public/strata/the-joke-desk/engine.mjs | recomputed by the checker in Python, independently of the engine (9 x 4 x 3)
- CONFIRMED | or, as one of Plutarch’s speakers reckons it, 108 years | https://penelope.uchicago.edu/Thayer/E/Roman/Texts/Plutarch/Moralia/De_defectu_oraculorum*.html | “Those that do not interpret 'generation' well make an immense total of this time; but it really means a year”
- CONFIRMED | The oldest wild raven found by North American bird-banders was at least 22 years 6 months old | https://www.pwrc.usgs.gov/BBL/Bander_Portal/login/Longevity.php | “Common Raven / Corvus corax / 22 years 06 months / 07/31/1978 / Nova Scotia / Hatching Year / Unknown / 99/99/2001 / Nova Scotia / Found dead. / Dead…”
- CONFIRMED | and the oldest in the European ringing records 21 years 10 months | https://www.federcaccia.org/wp-content/uploads/EURING_longevity_list_20230901.pdf | “Raven Norway NOS 342461 21y 10m”
- WRONG | The longest life reported for a raven in captivity is 69 years, and that is a single report. | https://genomics.senescence.info/species/entry.php?species=Corvus_corax | the same source goes on: “The lifespan of ravens in captivity, however, could be above 70 years with one anecdotal report of one raven living up to 80 years of age in captivity.” So 69 is not the longest reported
- CONFIRMED | If a verdict here is wrong, leave word at the door | public/strata/the-door/index.html | recomputed by the checker in Python, independently of the engine (the site’s deposition door)
- CONFIRMED | Received: attributed to Winston Churchill | https://www.statistik-bw.de/fileadmin/user_upload/Service/Veroeff/Statistisches_Monatsheft/PDF/Beitrag04_11_11.pdf | p. 50: “Angeblich stammt das „Zitat“ von dem ehemaligen britischen Premierminister Sir Winston Churchill”; the attribution circulates (research/the-joke-desk/sources/jokes-in-circulation.txt, case 16)
- CONFIRMED | whose table of mean hair diameters by population runs from 55 to 87 micrometres | https://www.ebi.ac.uk/europepmc/webservices/rest/PMC9762255/fullTextXML | the ethnicity table: African 55, Arab 87, Asian 80, Caucasian 65, Hispanic 75 (the record's own excerpt was from the scalp-site table, whose 90.7 exceeds 87: see findings)
- CONFIRMED | The last joke in the book is, literally, the oldest joke in the book | https://archive.org/details/philogelos-the-laugh-addict-the-worlds-oldest-joke-book/page/n5/mode/1up | Berg: the archetype is “probably (judging from content and language) from the fourth century C.E.”; the next oldest dated joke on the page is the chicken, March 1847
- CONFIRMED | Particle Data Group (F. Takahashi et al.), Review of Particle Physics, International Journal of Modern Physics A 41, 2630011 (2026) | https://pdg.lbl.gov/2026/tables/rpp2026-sum-baryons.pdf | “Citation: F. Takahashi et al. (Particle Data Group), Int. J. Mod. Phys. A 41, 2630011 (2026)”
- CONFIRMED | Stanford Encyclopedia of Philosophy, revised 12 July 2016 | https://plato.stanford.edu/entries/qt-uncertainty/ | “substantive revision Tue Jul 12, 2016”
- CONFIRMED | 9th edition, version 4.01 (June 2026) | https://www.bipm.org/en/publications/si-brochure | the PDF's metadata title “SI Brochure - 9th ed./version 4.01 EN”, June 2026
- CONFIRMED | Rodney Huddleston, “The case against a future tense in English”, Studies in Language 19, 399–446 (1995) | https://doi.org/10.1075/sl.19.2.04hud | Crossref: Studies in Language 19(2), 399-446
- CONFIRMED | James Joyce, Finnegans Wake, p. 383 | https://archive.org/details/finneganswake0000joyc_u5d0 | Open Library search-inside: folio 382 precedes “— Three quarks for Muster Mark!”, so the verse opens p. 383
- CONFIRMED | Table 1 (which assumes h = 0.7) | https://arxiv.org/abs/astro-ph/0406095 | “Based on Hubble parameter h = 0.7”
- CONFIRMED | Loeb Classical Library, Moralia V (1936), now in the public domain | https://penelope.uchicago.edu/Thayer/E/Roman/Texts/Plutarch/Moralia/De_defectu_oraculorum*.html | “Loeb Classical Library edition, 1936” and “The Greek text and the English translation (by F. C. Babbitt) are now in the public domain”
- WRONG | Every number on this page is worked out by the page’s own engine and checked by a second program ... It fails if a figure, a joke, a verdict, a quotation or a source line changes | verify-the-joke-desk.mjs (at 43327507) | in scratch copies, “nine tenths” to “three quarters”, “six tenses” to “seven”, “two primary tenses” to “three”, “a little under” to “over”, “eleventh” to “ninth”, “three stags’” to “four stags’” (the 108 unchanged) and a correction changed in both places all passed, 535 of 535; controls on digits failed as they should
- OBSERVED | To run it, with Node 18 or later and nothing to install | recreated: node-v18.20.4 (checksum verified) running verify-the-joke-desk.mjs from an empty directory with AW_DIR | 535 passed, 0 failed, exit 0; in the repository with --mutate, 603 passed
- OBSERVED | That was done by reading, first by the Desk and then by a second reader who had not written the page | not kept: assay/records/the-joke-desk.md was absent at 43327507 | this pass is that reading; the sentence holds once this record exists with the findings answered
- OBSERVED | the quoted passages are published in full beside the page as quotes.json | recreated: node verify-the-joke-desk.mjs (check C) | every quotation sits inside its passage and every passage is quoted; all 20 passages were found at their sources

## Findings
- [fixed] WRONG, the captive raven: the page said "The longest life reported for a raven in captivity is 69 years, and that is a single report", and AnAge, the same source, goes on to an anecdote of 80. Now: "In captivity, a database of animal lifespans records one raven at 69 years, from a single report, and mentions an anecdote of 80." The engine carries the anecdote (K.raven.anecdote), the verifier types it again and finds it in the kept copy; the verdict (premise false) is unchanged, since both are far short of two hundred.
- [fixed] WRONG, the Bohr radius inside Quigg and Shrock's sentence: the quotation was verbatim but its aside, "half a nanometer in the real world", is about ten times the Bohr radius (0.053 nm, CODATA 2022). The page now quotes "the Bohr radius of an atom … would be infinite.", the aside elided and marked; the verifier now checks an elided quotation piece by piece, in order, against its passage, and the source record says why the aside is out.
- [fixed] WRONG, the check section: it said every number was worked out by the engine and that the verifier fails if "a figure, a joke, a verdict, a quotation or a source line changes", but number words were unchecked. The verifier now registers every sentence that counts in words (54), where each joke was received from (19) and every correction (18); ties the number words the arithmetic makes to it (Hesiod's nine, four and three; "about nine tenths"; "a little under a quarter of an hour"; "less two molecules"; "a tenth of the width"; "one mile per hour"; "a billionth of a trillionth"); and --mutate plants five more errors (a share, a multiplier and a sourced count in words, a provenance, a correction in both places), all caught: 625 passed. The section now reads "Every figure in the findings comes from the page’s own engine, and a second program, written separately, checks each one ... It fails if a figure changes, or a joke, a correction, a verdict, a quotation, a source line, the name a joke was received under, or any sentence that counts something in words".
- [fixed] MINOR, the record left claims out: entries added for the Churchill slip, the hair range, the coda and seven citation details (the PDG citation, the SEP revision date, the SI Brochure's version, Huddleston 1995, Finnegans Wake p. 383, Fukugita and Peebles's h = 0.7, the Loeb edition's public domain), and the hair entry now quotes the population table, not the scalp-site table. The source record has 129 entries; `node scripts/check-sources.mjs the-joke-desk` passes.
- [fixed] MINOR, the "second reader" sentence needed this record to be true: this is it, written from the pass with every finding answered on the page before landing.