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Description

MATERIAL-Our newton cradle use nylon line of good material instead of cheap fishing line which other sellers used. Wooden base and the unique design idea make an impression. Different size give you more choices..
SWING TIME--The balance balls continue in perpetual motion for only 15-25 seconds due to the resistance of the air and friction, but it won't influence the effect of playing although it can not reach the seamless convergence among balls in the vacuum..
EDUTAINMENT--Suitable for children to experience the fun of mechanics in the process of playing this fun gadget..
APPLICATION--Apply to psychology, teaching tools and furnishings. Frequency swing keeps you in a calm state..
AFTER SALE SERVICES--Give you support and help at the first time whether it damage, receive the wrong goods or broken and other problems..
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Size Name:Small Newton's cradle, perfect gift for your children, friends and lover Size: 11×9×11cm - 2017 NEW（Small , about the same size as people's hand） Material: Instead of the cheap fishing line, we use nylon line of good quality which is not easy to be damaged Durable wooden base and the unique design idea make an impression Stainless steel frame and balls Introduction and the features Features: Principle: Not only demonstrates a pendulum, but also shows the Laws of Conservation of Momentum and Energy. Attention: Friction and damping effects are inevitable. Material: Balance Balls Desk Toy * 1, Stainless steel frame and balls, Nylon thread, Wooden base and the unique mirror design. A Brief History Newton's cradle, named after Sir Isaac Newton, is a device that demonstrates three main physics principles: conservation of energy, conservation of momentum and friction via a series of swinging spheres. Most people think that Isaac Newton invented the apparatus commonly called a Newton's Cradle, but he didn't. English actor Simon Preble invented the device in 1967 and named it in honor of Newton. In 1968 the first portable version hit the market and quickly gained popularity around the world as a fun, educational physics demonstrator. The never-ending ball symbolizes the never-ending love

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Hommy Classic Newton Cradle Balance Balls Science Psychology Puzzle Desk Toy - Small

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