Letters. 1752-1812.

Arago, F. (François), 1786-1853

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French mathematician, physicist, astronomer and politician. François Arago contributed to major discoveries concerning electromagnetism, light polarisation and velocity, the meridian arc length of the earth, and the standardisation of the metric system. From 1830 he was director of the Paris Observatory. Arago also served several roles in government, including a short period as the prime minister of France. From the description of Letter of François Arago written to Louis de Freyci...

Maraldi, Gian Domenico.

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Dibner, Bern.

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Lagrange, J.L. (Joseph Louis), 1736-1813

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Italian-French mathematician. From the description of Autograph note signed, samedi 6. (Unknown). WorldCat record id: 270598601 Comte Louis Lagrange was born in Turin. He became one of the most influential French mathematicians and physicists of his time. His work mostly concerned analysis, algebra, mechanics, celestial mechanics, etc. He also headed the Commission in charge of establishing the metric system in the 1790s. From the description of Papers. (Unknown)...