Newton's cradle
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See also: Newton's Cradle
English[edit]
Alternative forms[edit]
Etymology[edit]
Named after Isaac Newton.
Noun[edit]
Newton's cradle (plural Newton's cradles)
- 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.