A spinning coin explained from ball spin frequency Watch Video
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Description: When you spin a coin on its side, it slowly loses energy and starts wobbling around. As the flat surface of the coin comes closer to the table, the spinning increases in frequency. In other words, it spins faster as it's about to stop.nThe reason this happens is called a finite-time singularity. It's like bouncing a really elastic ball. If no energy was lost, the ball would bounce at a constant frequency forever. But since energy is being lost, the ball's maximum height decreases while its bounc
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