. r# }( O( x' J5 H% \5 N' Svolocity = radius X owmega squared7 a1 V$ O+ U3 J0 O# w
The greater the radius, the greater the voloctiy, then the less pressure - s% k8 U) S# o& j5 |5 Q8 Y7 W7 I
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。7 q! j. _7 Q4 E( [