This spinning motion, at speeds of hundreds of kilometers per second, may cause matter in the disk to take on a spiral shape.

这种以每秒数百公里的速度旋转的运动，可能会使圆盘上的物质呈现出螺旋形状。

youdao

And the windows on the second floor, which often access the master bedroom—and your jewelry. It’s not a bad idea to put motion detectors up there too.

当然二楼的窗子也非常重要——因为一旦失守，就意味着你的卧室和珠宝要沦陷，所以在那儿安装一个警报器是个绝好的主意。

youdao

I sprint through beetle mania into the longhallway that bisects the second floor, down the west staircase to the first floor, grateful to be in the pre-motion-detector era.

我一路快跑冲过狂热的甲虫，经过一条长廊通向二楼，我在往西面的楼梯下去，来到一楼，我感到心情愉快，好像处在早期动作侦探时代一样。

youdao

That would that would give rise to a perpetual motion machine, breaking of the second law. It can't happen.

否则就会使,得永动机出现，打破第二定律那是不可能的。

麻省理工公开课 - 热力学与动力学课程节选

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There's only one analog nub, but that's of course because the gun's own motion is meant to emulate the second.

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