Traces Écrites

An astronomer, a member (at 23) of the Academy of Sciences, where he became permanent secretary, a professor at the École Polytechnique, and director of the Observatory, he was a proponent of the wave theory. With Biot, he continued and verified Fresnel's theories. A far-left deputy for the Pyrénées-Orientales, he was part of the provisional government during the 1848 revolution.

Physicist; his discoveries revolutionized biological physics.

Physicist and astronomer, from the Bureau des Longitudes and the Academy of Sciences.

Chemist and pharmacist. He was also a professor of natural history in Colmar, and mayor of Munster from 1818 to 1830.

Physicist, holder of the chair of Physics applied to Natural Sciences at the Museum, from 1838 to 1877.

Son of physicist Antoine Becquerel and father of Henri Becquerel, discoverer of radioactivity. Chair of Applied Physics to Natural Sciences at the Museum, from 1878 to 1891.

French physicist. He discovered radioactivity in 1896 and was awarded the Nobel Prize in Physics in 1903, with Marie Curie and her husband Pierre Curie.

Engineer, inventor of the belinograph (1907), a process that allows a photograph to be sent remotely via the telephone network or radio waves.

Swiss mathematician and physicist.