How a Simple Pendulum Proved the Earth Rotates

Foucault pendulum Earth rotation physics

L'essentiel

In 1851, Léon Foucault demonstrated Earth's rotation with a simple pendulum.
By suspending a heavy bob from a long wire, he showed that the pendulum's swing plane appeared to rotate due to the Earth moving beneath it, providing tangible evidence of planetary motion.

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In 1851, Léon Foucault demonstrated Earth's rotation with a simple pendulum. By suspending a heavy bob from a long wire, he showed that the pendulum's swing plane appeared to rotate due to the Earth moving beneath it, providing tangible evidence of planetary motion.

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Foucault pendulum

SujetsEarth rotation physics Léon Foucault Paris Observatory Panthéon inertia

This article was originally published by TOI World.

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