He Proved Earth is Rotating… Without Leaving It #physics #facts

Added: 2026-05-06

[00:00:00]He proved the earth is spinning without leaving it. In 1851, Leyon Fuko set up a simple experiment. A long pendulum swinging back and forth. At first, nothing seemed unusual, but slowly something changed. The direction of the swing shifted, not because of the pendulum, but because the earth beneath it was rotating. This effect is called the corololis effect. And here's the incredible part. By measuring this shift, we can even calculate how fast the Earth rotates. The pendulum stays the same.