N an ornamental puzzle consisting of a frame in which five metal balls are suspended in such a way that when one is moved it sets all the others in motion in turn 牛顿摆
And that is a remarkable case — you've all seen that, you've all played with Newton's cradle.
这是个重要的例子-，你们都已经看到，你们都玩过牛顿支架。
The design is based on the Newton's cradle, which features several identically sized metal balls suspended so that the balls barely touch each other.
该设计基于牛顿摆的工作原理，它的特点是把若干个大小相同的金属球并排地悬挂在一起，并使这些金属球相互之间非常勉强地相互接触。
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