ZTD Newton's Cradle Steel Balance Ball Physics Science Pendulum Desk Fun Toy Gift J, 07
100% Brand New and High Quality Not only demonstrates a pendulum, but also shows the Laws of Conservation of Momentum and Energy. Friction and damping effects are also observed. Often used as a toy to amuse people. Includes steel balls, plastic frames and base. Great
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100% Brand New and High Quality Not only demonstrates a pendulum, but also shows the Laws of Conservation of Momentum and Energy. Friction and damping effects are also observed. Often used as a toy to amuse people. Includes steel balls, plastic frames and base. Great gift for everyone. Base size:85*70*90mm Included: 1 x Newton's Cradle Balance Balls Desk Toy
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