For example, no matter how much a dancer wishes to leap off the floor and then start turning, the law of conservation of angular momentum absolutely prevents such a movement.

例如，无论一个舞者多么想要跳离地板，然后开始旋转，角动量守恒定律绝对阻止这样的动作。

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Angular momentum is in this direction.

角动量是这个方向了。

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Why? Because it has angular momentum.

为什么，因为有了一个角动量。

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Bohr expressed the quantum condition by the angular momentum, quantum condition in the following manner.

波尔阐明了他的量子理条件,通过角动量，和以下的量子条件进行量子化。

麻省理工公开课 - 固态化学导论课程节选

Bohr said that the angular momentum, mvr where n is this integer counter h over 2 pi.

波尔提及到角动量，是被量化了的，mvr，is，quantized,这里的n等于一个整数乘以h除以2π

麻省理工公开课 - 固态化学导论课程节选

It describes the angular momentum of the electron.

它描述的是，电子的叫角动量。

麻省理工公开课 - 化学原理课程节选

That flip transfers angular momentum to the domain wall, pushing it along in the direction of the current.

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Proof of the feat was published in Nature Photonics, which details their use of orbital angular momentum (OAM) to make the magic happen.

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This is because of conservation of angular momentum, the same property that causes ice skaters to spin faster if they draw their arms in.

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