The spin angular momentum is now in this direction, so I'm going to give it a torque like so.

旋转的角动量现在是这个,方向的，我给它一个这样的力。

youdao

If I put it on this side, torque is now in this direction, spin angular momentum is in this direction.

在这边，力现在就是这个，方向的，旋转角动量是，这个方向的。

youdao

I add angular momentum in this direction and you see that here.

我在这个方向加入了角动量，你们可以在这看到。

youdao

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

And the first is l, and l is angular momentum quantum number, and it's called that because it dictates the angular momentum that our electron has in our atom.

第一个就是l，l是,角动量量子数，叫它这个名字,是因为它表明，原子中,电子的角动量是多少。

麻省理工公开课 - 化学原理课程节选

And the significant difference between s orbitals and p orbitals that comes from the fact that we do have angular momentum here in these p orbitals, is that p orbital wave functions do, in fact, have theta and phi dependence.

轨道和ｐ轨道的,不同之处在于,在ｐ轨道，波函数，随theta和phi变化。

麻省理工公开课 - 化学原理课程节选

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

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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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