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Desktop version of Newton's Cradle of Colliding pendulum Balls. Demonstrates the principles of perpetual motion desk toy energy and conservation of
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♔ 【High Quality Materials】 Excellent educational science gadget. It not only demonstrates a pendulum, but also shows the laws of conservation of
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🎁EDUCATIONAL SCIENCE GADGET: Not only demonstrates a pendulum, but also according to the law of conservation of momentum and conservation of energy,
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1.High Quality: The Newton's Cradle is composed of a metal ball, a plastic bracket and a plastic base. Use nylon line of good material instead of
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【Perfect gift】Suitable for psychology, teaching tools and furnishings, a nice gift for your kid, let them experience the fun of mechanics in the
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