May 14, 2008
Pendulum
1 set up this huge pendulum somewhere in Europe to prove something for the first time.
Identify him and tell us what he proved.
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Answer:
Foucault’s pendulum, which he used to show that the earth rotates.
Check out Madhur’s answer from some details.
Check out Ginkgo100′s comment for a post on the Foucault’s Pendulum at Huston Museum of Natural science. Found this video, which shows the pendulum topple pegs with time.. naaice


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He suspended a huge 28kg pendulum from the dome of the Pantheon in Paris to prove that Earth rotated about its axis.
He successfully demonstrated the rotation of the earth.His pendulum at Paris (1851?)was the first dynamic proof of the earth’s rotation in an “easy to watch” experiment format.
Regards,
Tathagata Chatterjee
Proved the rotation of the earth
(I remember your Rangoli Maker device in Planetarium :))
with it he proved that the earth rotates on its axis and
proved that earts rotation is affected during solar eclipses
French physicist best known for the invention of the Foucault pendulum, a device demonstrating the effect of the Earth’s rotation
2-Foucalt’s Pendulum
2 demonstrated the earth’s rotation.
You should have given the clue has Eco-friendly :P (Umberto Eco reference)
2) He’s best known for the invention of the Foucault pendulum, a device demonstrating the effect of the Earth’s rotation.
Er… to amend my answer… it demonstrates the rotation of the earth by precessing.
Blame AutoRaja
Video is of the Foucault pendulum.
Foucault built the pendulum to demonstrate the rotation of the Earth.
Demonstrates the rotation of the Earth.
He invented the Foucault pendulum which gave the visual proof of the Earth’s rotation.
Using the pendulum he demonstrated that earth rotates due to gravitational force as there is no force acting on the pendulum to make its plane of oscillation rotate or go around its own axis.
At equator, the plane of oscillation of Foucault pendulum remains fixed relative to Earth whereas at other latitudes, the plane of oscillation precesses relative to Earth, but slower than at the pole.
Léon Foucault set this up in Panthéon, Paris to demonstrate the rotation of earth.
Earth’s rotation..
Léon Foucault. Used this to prove earth\’s rotation
Blame AutoRaja