There's the hard sphere. It wants to collide against the wall to create a force on the wall, and I have a couple of the hard spheres that are nearby, right, and in the absence of any interactions, I get a certain pressure.

给墙一个作用力,现在它的附近，还有许多小球,没有相互作用时,它将直接冲向这面墙。

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They threw me up against the wall and checked me out, because I was a kid and I wanted to go there and see, just for the purpose of history, of being there.

他们把我推到墙上开始检查,因为我是个孩子而且我想去那看看,就是为了见证历史,亲身体验

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