Entry
Henri Poincaré — Mathematician, physicist and philosopher of science, 1854–1912
Son of a professor of medicine and first cousin of Raymond Poincaré, admitted first to Polytechnique in 1873, a mining engineer at Vesoul, doctor in 1879, he taught at Caen and then in Paris, where he held the chair of mathematical astronomy and celestial mechanics. He published on the three-body problem, Fuchsian functions and nascent topology, and for the public La Science et l’Hypothèse in 1902; he was elected to the Académie française in 1908. (Editorial synthesis)
Answers are drawn from a corpus established and verified by an editorial team; each one shows its source.
When a piece of information is not in that collection, the encyclopedia says so rather than inventing it — that principle is what makes every answer it does give trustworthy.