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Description:
Balancing Ball Newton's Cradles are great for home and office desk!Great for stress relief and makes a wonderful gift.1) Newton''s Cradle is a device that demonstrates theconservation of momentum and energy. It is also known as anexecutive ball clicker.
2) If you pull back two balls and let them strikethe others, two balls are knocked from the other end and all theother balls remain nearly at rest.
3) Great for stress relief and make a wonderfulgift.
Newton's Crale
