Template:Selected anniversaries/January 12: Difference between revisions

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||Gregorio Ricci-Curbastro (b. 12 January 1853) was an Italian mathematician born in Lugo di Romagna. He is most famous as the inventor of tensor calculus
||Gregorio Ricci-Curbastro (b. 12 January 1853) was an Italian mathematician born in Lugo di Romagna. He is most famous as the inventor of tensor calculus
||Knut Johan Ångström (b. 12 January 1857) was a Swedish physicist.  He investigated the radiation of heat from the sun, and terrestrial nocturnal emission and its absorption by the Earth's atmosphere; to that end devised various delicate methods and instruments, including his electric compensation pyrheliometer, invented in 1893, apparatus for obtaining a photographic representation of the infra-red spectrum (1895) and pyrgeometer (circa 1905) Pic.


||1866 – The Royal Aeronautical Society is formed in London.
||1866 – The Royal Aeronautical Society is formed in London.

Revision as of 06:13, 27 March 2018