2026-10-06 de.wikipedia.org: Dmitri Iwanowitsch Mendelejew

URL: https://de.wikipedia.org/wiki/Dmitri_Iwanowitsch_Mendelejew (footnote read from the raw wikitext via curl after Chrome showed only the footnote anchor). [web] Footnote: "Deutsche Übersetzung: Versuch einer chemischen Auffassung des Weltäthers in: Prometheus, Band 15, 1903, S. 97, 121, 129, 145. Russisches Original im gleichen Jahr in Wjestnik i biblioteka samoobrasowanja, Sankt Petersburg." The article also says Mendeleev later predicted a halogen of atomic mass 3, homologous to fluorine (compare footnote 17 of the 1905 Russian text), and cites van Spronsen, "Mendeleev as a speculator", J. Chem. Educ. 58 (1981) 790-791. This led to the Prometheus issues found on archive.org (see 2026-10-06-internet-archive.md).