8 e: m4 Q9 f# g( H3 ~, Y: j3 `volocity = radius X owmega squared" _* y# \. N6 M( o
The greater the radius, the greater the voloctiy, then the less pressure 3 m& G) w$ E7 O
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。 4 q% D" l# i! g: L( D% I, ]