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JoyTech Newton’s Cradle N Shape Newton’s Cradle Newton Pendulum Balance Balls Pendulum Balls Science Psychology Office Desk Décor Toy with Wooden Base to Kill Time WJ206
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About JoyTech Newton’s Cradle N Shape Newton’s Cradle
Principle: Not only demonstrates a pendulum, but also shows the Laws of Conservation of Momentum and Energy. Newton's Principle is that "action and reaction are equal and opposite." Features: 1.Size: 140*120*150 mm / 5.51 * 4.72 * 5.91 in 2. Weight: 528 g / 18.62 oz. 3. Include: Durable Black WOODEN base * Metal frame and 5balls, Nylon threads. 4. No worries about the strings being tangled, because everything is neatly secured in place when you receive it ATTENTION： 1.When you received the item, please take the balls out one by one，or the balls may be tangle up. 2. It is suggested be placing horizontally. 3. It is not an item that never stops working. The balls continue in perpetual motion for ONLY 15-25 SECONDS due to the resistance of the air and friction if you know more about the law of energy conservation, you will not ask why. （Friction and damping effects are inevitable ） How to play: Lift one of the 5 steel balls at either end and let it swing back--the ball at the other end will swing out the same distance as the one you lifted, proving the scientific theory and mesmerizing you for hours. Or life two of the 5, it also works. Gallery picture show you details.Fair warning: it's totally addictive!
