Photo Researchers ftp March 2011
EN_00958297_0680
Claude-Louis Berthollet (1748-1822), French doctor and chemist. Berthollet graduated in medicine, but by 1780 his work in the new science of chemistry led to his admission to the French Academy of Sciences. Berthollet supported the theories of Lavoisier, but correctly disagreed with him by proposing that some acids do not contain oxygen. His book Essai de statique chimique (1803) was the first systematic work on chemical physics. He also worked on a wide range of chemicals, as well as dyes and gunpowder. Berthollet was a friend of Napoleon Bonaparte and was made a count (Comte Berthollet), but in 1814 he helped depose Napoleon as Emperor, 'for the good of France'. 19th-century engraving.
2011-03-24
EAST NEWS
Science Source
New York Public Library Picture
BQ8199
5MB
24cm x 32cm przy 300dpi
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