There's some helium and traces of heavier elements.

太阳中含有氦和少量较重的元素。

No, I do. II didn't write " superfluid helium" on this napkin for nothing.

我真的想听。我特意把超流氦写在餐巾纸上可不是白费的。

5 imperial gallons of the liquid helium. 5 You know how much helium that is?

英制加仑的液态氮你知道那是多少氮气吗？

You can't sink. With all that helium in you, you're lucky you don't float away.

你落不了，体内充满了氦气遇水不飘走就算你走运啦。

Yeah, I listen to what you say. You're building a particle detector using superfluid helium.

当然，你的话我都有好好听。你正在用超流氦打造一个粒子探测器。

Yes, helium, just like those birthday balloons.

是的，就是生日派对上气球里用的那种氦气。

Helium is common in labs like this.

对于这样实验室来说，氦气很常用。

And how, you ask, can we get more helium before we run out?

你会问，在我们消耗完氦之前，我们怎样能得到更多的氦呢？

They are made up of hydrogen and helium.

它们是由氢和氦组成。

Sheldon, this is superfluid helium. Put this in your mouth, your tongue will freeze and break off.

谢尔顿，这是超流氦。把这个放到嘴巴里，你的舌头就会冻成碎片。

Next up, a helium filled floating mode of transportation.

接下来要介绍的是一种利用氦气做能源进行漂浮飞行的方法。

Hydrogen and helium are the rest of my atmosphere.

我的大气层主要由氢气和氦气组成。

They're mainly just hydrogen and helium.

它们主要是氢和氦组成的。

Helium, what's something that has helium?

氦，什么东西有氦？

It's just a giant ball of hydrogen and helium gas.

它只是一个巨大的氢气和氦气的球。

We need to calculate all the Euler angles that would cause the sun to hit the liquid helium.

我们需要算出所有的欧拉角避免太阳直射到液态氦。

However, the largest mass leaks are associated with hydrogen and helium.

然而，最大的质量减少与氢和氦有关。

The Sun gets hotter because it's burning hydrogen into helium.

太阳会变得越来越热，是因为她由燃烧氢转为烧氦。

So we're simultaneously heating it, and then we also have the helium to make sure it doesn't overheat.

所以我们会同时加热，然后我们还会使用氦气来确保它不会过热。

It ended when the first stars started fusing hydrogen into helium.

当第一批恒星将氢融合为氦时，黑暗时代结束了。