Newton's cradle

English
Newton's cradle in motion.

Etymology

Named after Sir Isaac Newton.

Noun

Newton's cradle (plural Newton's cradles)

  1. A device that demonstrates conservation of momentum and energy via a series of swinging spheres. When a sphere at one end is lifted and released, the resulting force travels through the line and pushes the opposite sphere upward, repeating the process as it swings back down.
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