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Jean Bernard Léon Foucault ( UK: / ʒɒ̃ ˈbɛərnɑːr ˌleɪɒ̃ ˈfuːkoʊ /, US: / ˌʒɒ̃ bɛərˈnɑːr leɪˌɒ̃ fuːˈkoʊ /; French: [ʒɑ̃ bɛʁnaʁ leɔ̃ fuko]; 18 September 1819 – 11 February 1868) was a French physicist best known for his demonstration of the Foucault pendulum, a device demonstrating the effect of Earth's ...
Sep 26, 2018 · Physicist Jean Bernard Léon Foucault was a remarkable scientist and experimentalist who measured the speed of light and proved Earth turns on its axis.
- Carolyn Collins Petersen
May 17, 2018 · Foucault, Jean Bernard Léon (1819–68) French physician and physicist who invented the gyroscope. He used a pendulum (Foucault's pendulum) to prove that the Earth spins on its axis and devised a method to measure the absolute velocity of light (1850). With Armand Fizeau, he took the first clear photograph of the Sun.
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Dec 24, 2016 · Jean Bernard-Léon Foucault determined an accurate value for the speed of light, designed a pendulum to demonstrate the Earth’s rotation, and revolutionized telescope optics by applying a silvering technique to mirrors and inventing the knife-edge test.
- William Tobin
- william.tobin@wanadoo.fr
Jean Foucault. In full: Jean-Bernard-Léon Foucault. Born: September 18, 1819, Paris, France. Died: February 11, 1868, Paris (aged 48) Awards And Honors: Copley Medal (1855) Subjects Of Study: Earth. Foucault pendulum. rotation. speed of light.
- The Editors of Encyclopaedia Britannica
Not until Léon Foucault’s famous pendulum demonstration in 1851 was there clear dynamical proof of Earth’s rotation. Jean Bernard Léon Foucault was born in Paris in September 1819, the son of a publisher. In his school days, he was a rather timid boy and never had much success academically. Much of his education was obtained at home.
Sep 18, 2011 · Jean Bernard Léon Foucault. Quick Info. Born. 18 September 1819. Paris, France. Died. 11 February 1868. Paris, France. Summary. Léon Foucault was a French mathematician and astronomer who is best known for his invention of a pendulum which demonstrates the rotation of the earth. View two larger pictures. Biography.
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