DOTSOG Newtons Cradle Balance Balls for Stress Relief Science Physics Learning Desk Toys Fun Gadget 5 Pendulum Balls for Office and Home Decoration

EDUCATIONAL SCIENCE GADGETThis device demonstrates demonstrates conservation of momentum and energy via a series of swinging balls, which is an excellent educational science gadget. By playing this newtons cradle balls, explore significant values of physics, inspire us to better learn and understand the Newton's laws of motion. HIGH QUALITY MATERIALThe frame is made of plastic with piano coating, lightweight. Nylon string is tough and flexible, which is not easy to break and can ensure uniform force. Solid steel ball, good vertical sense, strong force when stressed. HOW TO PLAYPull back one or more of the balance balls, release them and the same number of balls will swing up on the opposite side.

Usually, when under normal circumstances, because different force and environment, the swing time will be different. The balance balls continue in perpetual motion for only 15 seconds due to the resistance of the air and friction. REDUCED PRESSURE Suit for both kids and adults, excellent for killing boring time and stress release. They could experience the fun of mechanics in the process of playing this fun gadget. GREAT GIFTPerfect home or office desktop ornament to release pressure and stimulate aspiration. Also good for birthday gift.