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Pendulum-Balls-Collision-Apparatus is a kind fashion product from Hema brand factory. As the manufacturer and supplier in China, we provide customized service and make newest and fashion Pendulum-Balls-Collision-Apparatus in classy quality. Contact us for lastest selling Pendulum-Balls-Collision-Apparatus and advanced items. Welcome to to place bulk orders. Low price can be discussed.

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Newtown's Pendulum Balls Collision Apparatus

Newtown's Pendulum Balls Collision Apparatus is one of the oldest, most interesting physics toys that demonstrate the laws of conservation of energy and momentum (and much more). You just raise one or two balls on one end, let them go and watch what happens on the other side. Great for physics demonstrations or as a desk toy/stress reducer, and makes a great gift.