## 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

Leon Foucault, the Foucault Pendulum……to prove the earth’s rotation

1.Jean Bernard Léon Foucault

He suspended a huge 28kg pendulum from the dome of the Pantheon in Paris to prove that Earth rotated about its axis.

Leon Foucault

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

Leon Foucault

Proved the rotation of the earth

(I remember your Rangoli Maker device in Planetarium :))

Thats the Foucault’s pendulum, named after the French physicist Léon Foucault.

with it he proved that the earth rotates on its axis and

proved that earts rotation is affected during solar eclipses

The man is Leon Foucault. He proved that the Earth rotates about its axis.

Leon Foucault

French physicist best known for the invention of the Foucault pendulum, a device demonstrating the effect of the Earth’s rotation

“31319”: foucault and his pendulum. proved that the world does go around.

Jean Bernard Léon Foucault and Foucault’s pendulum, a device demonstrating the effect of the Earth’s rotation.

Jean Bernard Léon Foucault : Focault’s most spectacular demonstration was in 1851 when he demonstrated the rotation of the Earth. He suspended a pendulum, known now as a Focault Pendulum, on a long wire from the dome of the Pantheon in Paris.

foucault. he proved the earth rotates.

1-Foucault

2-Foucalt’s Pendulum

2 demonstrated the earth’s rotation.

Foucault’s pendulum. Rotation of the earth.

You should have given the clue has Eco-friendly :P (Umberto Eco reference)

Foucalt pendulum to demonstrate the effect of rotation of the earth.

Leon Foucault ,Foucault’s pendulum , to prove the rotation of the earth.

1) Leon Foucault

2) He’s best known for the invention of the Foucault pendulum, a device demonstrating the effect of the Earth’s rotation.

The guy in the picture is Foucault and he setup the Foucault’s Pendulum to prove that the earth rotates

was dat leon foucault who gave 1st physical proof of earth\\\’s rotation..?

Léon Foucault’s pendulum demonstrates the precession of the earth.

Er… to amend my answer… it demonstrates the

rotationof the earth byprecessing.1. Jean Bernard Léon Foucault

Video is of the Foucault pendulum.

Foucault built the pendulum to demonstrate the rotation of the Earth.

Foucaults Pendulum . Earths rotation

Leon Foucault

Focault’s pendulum

Léon Foucault, Foucault’s Pendulum.

Demonstrates the rotation of the Earth.

1. Jean Bernard Léon Foucault

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.

Foucault pendulum

Léon Foucault set this up in Panthéon, Paris to demonstrate the rotation of earth.

Foucault pendulum

Léon Foucault. The Foucalt Pendulum, which was installed to demonstrate the rotation of earth.

Foucalt,

Earth’s rotation..

Leon Foucault. Foucault’s pendulum to prove the rotation of the earth.

Léon Foucault,below is Foucault\\\’s pendulum in Paris.It demonstrates the rotation of earth.

Léon Foucault. Used this to prove earth\’s rotation