Last Updated：2025/11/26
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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Newton's cradle
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Source Word
Newton's cradle
Noun
Japanese Meaning
運動量とエネルギーの保存則を示す装置。複数の球が糸などで吊るされ、一方の球を持ち上げて放すと、その衝撃が連鎖的に他の球を動かし、反対側の球が持ち上がる様子を観察できる。
（ plural ）
