Life is self-organising chemistry, and on Earth it requires access to several different elements besides the hydrogen and oxygen that make up water.

生命是一种自组织化学，在地球上，除了组成水的氢和氧之外，它还需要几种不同的元素。

So the high energy particles that come in from the sun and from outer space, they begin to strip away the components that make up water.

所以来自太阳和外太空的高能粒子，它们开始剥离构成水的成分。

Even if our wand has corners, the attraction in the particles that make up water pull those corners out, and give us a nice round bubble every time.

即使我们的魔杖有角，构成水的粒子中的吸引力也会把这些角拉出来， 每次都会给我们一个漂亮的圆形气泡。

And naturally, this makes colder water up north denser, allowing it to sink to the bottom to make room for the incoming warmer water that's worked it's way up from the south.

自然，这使得北边较冷的水密度更大，它沉入下面，为从南面从上往下流的暖水腾出空间。

Once it stops, then what happens is all the atmospheric components, things like hydrogen and oxygen that make up water, they get stripped away because you don't have the shield, the magnetic shield anymore.

一旦磁场停止，大气中的所有成分，比如构成水的氢和氧，都会被剥离，因为你不再有保护罩，不再有磁场保护罩了。