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Foucault |
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Foucault 1. Jean Bernard L?on . 1819--68, French physicist. He determined the velocity of light and proved that light travels more slowly in water than in air (1850). He demonstrated by means of the pendulum named after him the rotation of the earth on its axis (1851) and invented the gyroscope (1852) 2. Michel. 1926--84, French philosopher and historian of ideas. His publications include Histoire de la folie (1961) and Les Mots et les choses (1966) How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| From the 4th to the 6th of December inclusive, the weather remaining much the same in America, the great European instruments of Herschel, Rosse, and Foucault, were constantly directed toward the moon, for the weather was then magnificent; but the comparative weakness of their glasses prevented any trustworthy observations being made. |
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