How A Steel Ball Keeps Moving In a Loop

Let’s explore the world of perpetual motion machines which run without any energy source. How does a steel ball continue falling through a hole and then rising back up again? Actually, it appears to have infinite energy. Normally, we would expect the ball to lose momentum with each loop, and ultimately come to a stop. The secret behind this machine lies in a concealed electromagnet that supplies the ball with tiny energy boosts that enable it to continue moving, at least until the battery runs dry.

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