Slinger van Foucault in het Panthéon (1851 CE)

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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 spontaneously as the Earth makes its 24-hourly rotation. This effect is greatest at the poles and diminishes with lower latitude until it no longer exists at Earth's equator.

Galerij

Pendule de FoucaultArnaud 25Public domainWikimedia Commons

Jean Bernard Léon Foucault (18 September 1819 – 11 February 1868) was a French physicist best known nowadays for his demonstration 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, is credited with naming the gyroscope (although he did not invent it) and was a daguerreotypist. He worked with Duboscq, who took this stereo daguerreotype, and with Fizeau. Foucault took the first daguerreotype of the sun in 1845.National Science and Media Museum BradfordPublic domain Europeana

Personen

Theodoric the Great · 454 CE – 526 CE
Alfred the Great · 849 CE – 899 CE
Otto I the Great · 912 CE – 973 CE
Abbas the Great · 1571 CE – 1629 CE

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