7 m! R1 h2 p# Y- Hvolocity = radius X owmega squared0 |* j( k5 J3 a( I( L& U
The greater the radius, the greater the voloctiy, then the less pressure ( L$ I6 u2 D$ H# E2 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。, Q; m L4 _: }8 r8 q7 k. X C( B& B