So if you have inverse-square force laws,

从反比平方力定律中
or any combination of inverse-square force laws,

或结合反比平方力定律
like a combination of gravity and electrostatics and magnetics,

如结合引力静电学和磁力学
you can't get a minimum energy structure,

都不可能获得最低能量的结构
unless everything just falls together or blows apart.

除非所有的物质都结合起来或者发生爆炸
So Earnshaw's Theorem: "In systems governed by inverse-square force laws

恩绍定理指在平方反比力定律体系中
there can be no local maximum

在真空中不存在最大
(or minimum) of potential energy in free space."

或最小的初始电势能"
And that's why I don't just float here,

这就是我没有飘浮起来
I have to be on the floor. Right?

而是呆在地板上的原因
Did you ever see anything truly levitating,

你们有看过真正漂浮的物质吗
something that just sits in space

完全停留在空中