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Newton’s Cradle, also known as balance balls, is a classic desk toy that demonstrates the principles of physics, particularly the law of conservation of momentum and energy. The toy consists of a series of identical metal balls suspended in a frame by thin strings. When one ball is lifted and released, it strikes the next ball in line, causing the last ball in the row to swing out, while the others remain stationary. The energy from the moving ball transfers through the others, and the motion is repeated back and forth.
The rhythmic swinging of the balls creates a visually satisfying display, while also serving as a reminder of physical principles like energy transfer and momentum. Newton’s Cradle is often used as a decorative item, stress reliever, or educational tool, making it a popular desk accessory.
