• Every year, January 8 is recognized as Earth Rotation Day. Today marks the anniversary of French physicist Leon Foucault's 1851 proof that the Earth revolves on its axis.
• To prove his theory, Foucault suspended a lead-filled brass sphere, now called the Foucault Pendulum from the top of the Pantheon in Paris. He showed that the plane of the swing of the pendulum rotated relative to the Earth’s rotation. You can now see the Foucault Pendulum demonstrating the rotation of the Earth in science museums around the world.

Date: Current Affairs - 09-01-2025
Category: Important Days

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