小U博学!* d8 r* u* r8 t i; S
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volocity = radius X owmega squared ( l% x% n" J$ v7 J0 v% pThe greater the radius, the greater the voloctiy, then the less pressure " _( `' N: E' b3 K
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。( J8 ~3 T$ R3 G