Fdit Mini Newton's Cradle Toy Balance Ball for Physics Classic Science Fun Office Desk accompany your child's Grown Up

Friction and damping effects are also observed. Excellent educational science gadget. Not only demonstrates a pendulum, but also shows the laws of conservation of momentum and energy. Science toy. When feeling tired of studying and working, you can stir balls to hear the clinking sound to ease. Excellent educational & science gadget, own your very own piece of scientific history and explore significant values of physics. Pull back or more of the balance balls, release them and the same number of balls will swing up on the opposite side., Manufacturer: Fdit