小U博学! . ]* E. h/ U$ t! @' f- g) P' T5 |* E/ l
volocity = radius X owmega squared - D4 A) g# G& vThe greater the radius, the greater the voloctiy, then the less pressure - _- w$ U6 V7 X/ m3 ~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。+ Z9 m: B9 q+ c- `