Esclangon

Ernest Benjamin Esclangon

Born: 17 March 1876 in Mison, France
Died: 28 Jan 1954 in Eyrenville,France

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Ernest Esclangon studied mathematics at École Normale Supérieure and worked on quasi-periodic functions on which his doctoral thesis is written. He became an astronomer by accepting, out of curiosity, a position offered to him.

Esclangon became professor of astronomy at Strasbourg and then at Paris. From 1914 he worked on ballistics and in 1933, using an astronomical calculation of time, he started the 'talking clock' telephone service in Paris.

References:

  1. Dictionary of Scientific Biography
  2. J Chazy, Notice nécrologique sur Ernest Esclangon, Comptes rendus hebdomadaires des séances de l'Académie des Sciences 238 (1954), 629-632. 
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