小U博学! 2 Z n& H, w5 N# ] 2 E4 e& C2 Z! O& Q4 I w; Avolocity = radius X owmega squared . U. |) C1 p, G8 r% PThe greater the radius, the greater the voloctiy, then the less pressure ; n' d- r7 J+ B/ ^3 E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。+ t! o' j1 q7 J4 I7 S7 ?