François Arago
French physicist and astronomer (1786–1853)
François Arago
Dominique François Jean Arago (Catalan: Domènec Francesc Joan Aragó), known simply as François Arago (French: [fʁɑ̃swa aʁaɡo]; Catalan: Francesc Aragó, IPA: [fɾənˈsɛsk əɾəˈɣo]; 26 February 1786 – 2 October 1853), was a French mathematician, physicist, astronomer, freemason, supporter of the Carbonari revolutionaries, and politician. In physics, he is known for helping establishing the wave theory of light. The Arago spot, an important experiment in optics that demonstrated this phenomenon, is named after him.
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