瓶中精灵 Imp Bottle

魔术师将一个小瓶子放在桌上，它可以躺倒在一边。但当其他人尝试让瓶子侧躺时，瓶子却会神奇地弹回直立状态。

瓶子高度为5厘米。

视频演示：https://52magicshare.cn/Demo/ImpBottle.mp4 

Imp Bottle

A small bottle is set on the table by the magician. It is seen to lay on its side. But when Someone other than the Magician tries to lay the bottle on its side, it jumps back to an Upright Position.

The bottle is 5cm tall.