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Any person, brought into the presence of this fact, stops for a few moments and remains pensive and ...

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The phenomenon develops calmly, but it is invisible, unstoppable. One feels, one sees it born and gr...

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Léon Foucault

Physicist

Born: 1819-09-18

Died: 1868-02-11

Jean Bernard Léon Foucault (September 18, 1819 – February 11, 1868) was a French physicist best known for the invention of the Foucault pendulum, a device demonstrating the effect of the Earth's rotation. He also made an early measurement of the speed of light, discovered eddy currents, and although he didn't invent it, is credited with naming the gyroscope. The Foucault crater on the Moon is named after him.More