Jean Baptiste Perrin

Jean Baptiste Perrin, generally known as Jean Perrin (September 30, 1870, Lille – April 17, 1942, New York), was a French physicist.

Related Topics:
September 30 - 1870 - Lille - April 17 - 1942 - New York - French - Physicist

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In 1895, he showed that cathode rays were made of corpuscles with negative electric charge. He computed Avogadro's number through several methods. He explained solar energy by the thermonuclear reactions of hydrogen.

Related Topics:
1895 - Cathode rays - Avogadro's number - Solar - Thermonuclear - Hydrogen

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After Albert Einstein published (1905) his theoretical explanation of Brownian motion in terms of atoms, Perrin did the experimental work to test Einstein's predictions, thereby settling the century-long dispute about John Dalton's atomic theory.

Related Topics:
Albert Einstein - 1905 - Brownian motion - Atom - John Dalton - Atomic theory

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Jean Perrin received the Nobel Prize in Physics in 1926 for his work on the discontinuous structure of matter, and especially for his discovery of sedimentation equilibrium.

Related Topics:
Nobel Prize in Physics - 1926 - Equilibrium

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He was the father of Francis Perrin, also a physicist.

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