小U博学! $ n8 f1 D, K4 ~/ t2 N" d- {3 [8 h. V3 E& Z4 W0 z
volocity = radius X owmega squared9 c2 h! X8 B3 |* j- y
The greater the radius, the greater the voloctiy, then the less pressure * p/ C1 f* k! I" u$ N# n
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。* d+ U2 [ }! o% N' l