We publish our audit record because accuracy claims should be checkable. Every entry on this site runs through an automated fact-audit pipeline (accuracy audit → source-grounded repair → visual QA); this page is generated from that pipeline's own report, not written by hand.
Last full accuracy audit: 2026-08-26 · 10 entries checked · 5 flagged · 6 issues confirmed · 5 corrected · 1 still open
Curium — The claim that one tonne of spent nuclear fuel contains approximately 20 grams of curium is inaccurate; typical spent nuclear fuel contains only a few grams per tonne, not 20 grams.
Dalton (unit) — The entry incorrectly states that from 2026 the dalton will no longer be accepted for use with the SI by the BIPM; the BIPM has not announced such a change and the unit remains accepted as of the latest SI Brochure.
Haber process — The first pilot plant began operation in 1910, not 1911.
Haber process — The Oppau plant reached about 20 tonnes per day in 1913, not 1914.
Hafnium — The statement about the longest-lived nuclear isomer 178m2Hf being at the center of a controversy for its potential use as a weapon is misleading; the controversy was about triggered energy release, not specifically as a weapon.
Haloalkane — Chloroethane was not produced in the 16th century; the first synthesis is generally attributed to the 18th century, with earlier work in the 17th century, not the 16th.
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