Howard: It sounds like a good idea. I second the motion.
霍华德:这个点子听起来不赖。我附议。
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。
So, what Kepler's second law says is that the motion of planets is, first of all, they move in a plane.
开普勒第二定律说到,首先每个行星的运动都保持在同一平面内。
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。
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