小U博学!) t5 s c$ `( z- t" ~; @! Q
* t% [; l( P, f0 e- |1 m
volocity = radius X owmega squared/ ?, L ]7 L5 F9 _
The greater the radius, the greater the voloctiy, then the less pressure - P: U7 M' P! ?- O* S上面杯子的半径大,转速快,压力小。反之下面的半径小,转速慢,压力大。所以产生了一个升力,从而托住了杯子。* F) X1 S1 \) S j( }