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Jean Bernard Léon Foucault (UK: / ʒ ɒ̃ ˈ b ɛər n ɑːr ˌ l eɪ ɒ̃ ˈ f uː k oʊ /, US: / ˌ ʒ ɒ̃ b ɛər ˈ n ɑːr l eɪ ˌ ɒ̃ f uː ˈ k oʊ /; 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 rotation.
In Foucault's 1862 experiment, he desired to obtain an accurate absolute value for the speed of light, since his concern was to deduce an improved value for the astronomical unit. [2] [Note 4] At the time, Foucault was working at the Paris Observatory under Urbain le Verrier. It was le Verrier's belief, based on extensive celestial mechanics ...
Jean Baudrillard's 1977 tract Oublier Foucault (trans. Forget Foucault) made Baudrillard instantly infamous within France, as it was a devastating critical analysis of Foucault's book the History of Sexuality—and of Foucault's entire oeuvre. In 1976, Jean Baudrillard sent this essay to the French magazine Critique, where Michel Foucault was ...
Created Date: 8/30/2012 4:52:52 PM
The Foucault pendulum or Foucault's pendulum is a simple device named after French physicist Léon Foucault, conceived as an experiment to demonstrate the Earth's rotation. If a long and heavy pendulum suspended from the high roof above a circular area is monitored over an extended period of time, its plane of oscillation appears to change ...
In 1850 he measured the relative speeds of light in air and water, using a rotating mirror, however Foucault independently achieved the same result seven weeks earlier. [ 8 ] : 129 Fizeau was involved in the discovery of the Doppler effect , [ 9 ] which is known in French as the Doppler–Fizeau effect.
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Figure 2: Chronograph record from Cornu's speed of light determination shows wheel rotations, timing signals based on the observatory clock, and observer markings.