Science: Léon Foucault hung a 67 m pendulum in the Paris Panthéo…

Question

Did you know? Léon Foucault hung a 67 m pendulum in the Paris Panthéon in 1851. As it swung, the swing direction slowly rotated — not because the pendulum was rotating, but because the Earth beneath it was. The first direct proof of Earth's rotation.

Accepted Answer

Léon Foucault hung a 67 m pendulum in the Paris Panthéon in 1851. As it swung, the swing direction slowly rotated — not because the pendulum was rotating, but because the Earth beneath it was. The first direct proof of Earth's rotation.

Léon Foucault hing in 1851 een 67 m lange slinger op in het Pantheon in Parijs. Tijdens het slingeren draaide de slingerrichting langzaam — niet omdat de slinger draaide, maar omdat de aarde eronder draaide. Eerste rechtstreeks bewijs van de aardrotatie.

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