If an egg rolls end over end along a horizontal surface at sufficient speed it will become airborne. A similar effect occurs if a person walks fast enough. The person then becomes airborne and both feet lift off the ground in a running stride.

中文翻译：

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如何让鸡蛋悬浮

如果鸡蛋沿水平表面以足够的速度翻滚，它将变成空中。如果一个人走得足够快，就会出现类似的效果。然后这个人开始腾空而起，双脚以跑步的步伐离开地面。