WOHOT Classic Newton Ball Pendulum, Large Pendulum 18 cm, 5 Balls, Physics Decoration for Office & Desk, Desk

High-quality materials: the Newton pendulum made of high-quality metal steel and solid wood as well as nylon wire. It is more durable and not easy to break. It is bright, corrosion resistant and not easy to rust. It can be used for a long time Perfect educational Newton bullet pendulum: according to the laws for impulse preservation and energy conservation, the metal ball does not swing forever due to resistance. Normally the ball swings for about 15 to 30 seconds under normal circumstances. However, due to different forces and environments, the oscillation time is also different. The perfect educational decoration that can pick up the secrets of stories and science Excellent desk decoration: this is a very interesting decompression Newton ball game that can beat and swing other balls with a ball. (Mini cradle ball, please do not swing the metal ball vigorously.) It is very suitable for decoration in offices, apartments and other interiors Relaxation: Suitable for children and adults, ideal for avoiding boring time and stress relief. It is a high quality desk decoration for an office or home. The device demonstrates Newton's preservation of momentum and energy through a series of rotating balls of the same size. When a ball is lifted and released at the end, the resulting force goes through the line and pushes the last ball outwards The best choice for gifting: a Newton ball game with ball pendulum can explain your child's physical knowledge and Newton's history and help you explore the secrets of natural sciences. This is an interesting gift for your friends, family and children