Newton's pendulum, large Newton's cradle 18 cm pendulum Newton's balls Newton's swing Science game Office desk decoration

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【High-quality materials】 Newton's cradle is made of high-quality metal steel and solid wood base and nylon. It is more durable and not easy to break. It is shiny, anti-rust and not easy to rust. It can be used for a long time【Educational and scientific games Newton Pendulum】 According to the laws of conservation of momentum and conservation of energy, the metal ball will not swing indefinitely due to resistance. Usually, under normal circumstances, the ball swings for about 15-30 seconds. However, due to different forces and environments, the swing time will also be different. The perfect educational decoration that can embrace the mysteries of science【Excellent desktop decoration】 This is a very interesting decompression Newton ball that can hit other balls with a ball and swing. (Mini rocking ball, do not swing the metal ball vigorously) It is very suitable for decoration in offices, homes and other indoor places【Stress relief】 Suitable for children and adults. adults, perfect for eliminating boring time and stress relief. It is a high-quality desk decoration for an office or home. The device demonstrates Newton's conservation of momentum and energy through a series of rotating spheres of the same size. When a ball at the end is lifted and released, the resulting force crosses the line and pushes the last ball outwards【The best choice for giving gifts】 A cradle with a cradle can explain your child's physical knowledge and the history of Newton, and it can also help you explore the mysteries of science. This is an interesting gift for your friends, family and children Returns, Refunds and Replacements Delivery Timeframe Please note that we cannot guarantee the exact date of arrival, and the delivery timeframes (excluding weekends and public holidays) are as follows: For customers in Victoria, approximately 7-10 working days; For customers in NSW, SA, ACT, and QLD, approximately 9-12 working days; For customers in WA, NT, and TAS, approximately 9-12 working days.