6 ]$ C8 b; K8 j2 |volocity = radius X owmega squared' O+ P9 H7 r& F, y" `" K t: L
The greater the radius, the greater the voloctiy, then the less pressure , L2 r5 }* w1 }7 Y$ c6 e% X
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# e1 C+ X' |