The Newton's Cradle is a classic desk accessory that can also be used as an educational tool in physics courses. This set includes 2 Newton's Cradles so you can share one with your friend or family and keep one to yourself. The metal balls and plastic base look classy sitting on a desk, and it can be a relaxing diversion from the workday. All you have to do is pull one of the balls back and release it. Then you will see that each action has an equal and opposite reaction! It's not magic, just science. The materials are high quality and the strings do not tangle easily. Each measures 3.5 x 3.5 x 3 Inches.
A**E
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Very cheap quality item, easily broken. I would not recommend this product.
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