Principle: Not only demonstrates a pendulum, but also shows the Laws of Conservation of Momentum and Energy. Attention: Friction and damping effects are inevitable. This classic desktop toy provides you many benefits and entertainments, is suitable for various locations such as house or office, and is an intriguing device that not only demonstrates pendulum motion, but also helps to show the laws of Conservation of Momentum and Energy. Whether you are studying physics knowledge or looking for a delicate gift, this balance ball is definitely what you really want. Occasions: daily use, education supplies, psychotherapy, birthday present, business gift. Size: 7.9 x 6.6 x 7.1 inch.
Cheapest price in the interval: 18.49 on October 28, 2021
Most expensive price in the interval: 18.49 on November 6, 2021
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