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・ Alfred Ploetz
・ Alfred Plé
・ Alfred Poell
・ Alfred Poland
・ Alfred Polgar
・ Alfred Polizzi
・ Alfred Pollack
・ Alfred Pollard
・ Alfred Polond
・ Alfred Pontifex
・ Alfred Portale
・ Alfred Porterfield
・ Alfred Posselt
・ Alfred Post
・ Alfred Post (footballer)
Alfred Potier
・ Alfred Potiquet
・ Alfred Pott
・ Alfred Potter
・ Alfred Poulin
・ Alfred Poupart
・ Alfred Powell
・ Alfred Powell (cricketer)
・ Alfred Powell Morgan
・ Alfred Powis
・ Alfred Powlesland
・ Alfred Praks
・ Alfred Preis
・ Alfred Preisser
・ Alfred Preissler


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Alfred Potier : ウィキペディア英語版
Alfred Potier

Alfred Potier (11 May 1840, Paris – May 8, 1905, Paris) was a French polymath who contributed to many theoretical and practical fields of science when this was rapidly expanding. His interests covered mainly mathematical physics, the nature of light and the ether, geology, electricity and magnetism and their practical applications in industry. His name’s claim to fame rests, however, on a little explored footnote inserted by Michelson and Morley in their famous paper “On the Relative Motion of the Earth and the Luminiferous Ether”.

== Biography==
Born in 1840, Potier entered the École Polytechnique at age 17, where in 1867 he became a physics teacher, and then in 1881 full Professor of Physics, succeeding Jamin and preceding Nobel Laureate Henri Becquerel. At the same time, he was member of the State Mining Engineers Corps, occupying the chair of Physics in the École des Mines where he taught Henri Poincaré. Geological works included revisions of the geological map of France and submarine topographies in Pas-de-Calais in order to examine the feasibility of a tunnel to England. These, and his valor during the German siege of Paris in 1870, earned him the Légion d'honneur. His other publications concerned Fresnel’s theories of light and the ether, diffraction of polarized light, elliptical reflection, magnetic rotational forces, or interference fringes. He contributed extensive notes to JC Maxwell’s treatise on electromagnetism, facilitating its reading in France.

Potier was a member of many committees at the famous 1881 Universal Exposition in Paris, including the one that set the standards for units in electricity. The French Physics Society appointed Potier as president in 1884; the International Electricians Society did the same in 1895. In 1891 he was accepted into the French Academy of Science.


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