January 8 is Earth’s Rotation Day. The day commemorates when French Physicist, Leon Foucault, demonstrated the Earth rotates on its axis in 1851.

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.

How to Celebrate?

Visit your local space and science museum to learn more about the Earth’s rotation and what effect it has on humans.
If you have kids, what about making a model of the Earth and the Sun with them, so that they can learn more about the Earth’s rotation.


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