To refuel the car is a very similar experience to a petrol car.

加氢气和加油的原理是一样的。

Though sales of electric cars have increased in recent years and engineers are constantly looking for alternatives to gasoline, the internal combustion engine is not on the way out, though the inventor of a new hydrogen-powered vehicle disagrees.

虽然电动汽车在近几年来销量走高，工程师们也在寻找替代汽油的燃料，但是内燃机却不会从此式微，最起码发明新型氢气动力汽车的发明者不这么认为。

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

是一个巨大的氢气和氦气的球。

Embracing hydrofuel on a global scale will require a global mind shift and an understanding that hydrogen as fuel isn't dangerous, stored in tanks designed to withstand massive pressure.

让全世界的人接受氢气动力车还需要改变们想法，让们明白装在高压罐里的氢气不是危险品。

For example, a simple molecule like hydrogen gas absorbs these bands.

例如，像氢气这样的简单分子会吸收这些波长的光。

So the only thing that'll flow in a cold hydrogen atmosphere is hot hydrogen.

所以唯一的情况是在寒冷的氢大气层里用热的氢气漂流。

Mars is too dry and poor in oxygen, Venus far too hot, and so is Mercury, and the outer planets have temperatures near absolute zero and hydrogen-dominated atmospheres.

火星太干燥又缺氧，金星太热，水星也一样。除此之外，太阳系的其行星的温度都接近绝对零度，并围绕着以氢气为主的大气层。

But a mixture of carbon monoxide and hydrogen is a familiar one to industrial chemists.

但是工业化学家对一氧化碳和氢气的混合物并不陌生。

We use hydrogen gas as the source of electrons.

我们用氢气作为电子的来源。

So it’s roughly 90% hydrogen, it’s maybe 8% helium, and the rest of it’s made up of things like iron, carbon, oxygen, nickel.

大概有90%的氢气，8%的氦气，其余的成分有铁、碳、氧和镍。

During the collision, vast clouds of hydrogen would become compressed, and rapidly create new stars.

在碰撞中，巨大的氢气云会被压缩迅速形成新的恒星。

And that classical nova is what happened in 1437 to this star.

而朝鲜发现的那颗新星就是1437年矮新星上发生的氢气爆炸。”

As more hydrogen is squeezed into the clumps the temperature rises.

团块聚集的氢气越多，温度就越高。

That is much less than the current cost of cleanly produced hydrogen.

这比目前清洁生产氢气的成本要低得多。

By comparison, the cold hydrogen gas that fills our galaxy clumps together in giant clouds.

相比之下，充斥在银河系中的冷氢气聚集成巨大的云团。

They will power electrolyzers that produce hydrogen, which can be stored.

们将为电解槽提供动力，这些电解槽产生可以储存的氢气。

Maybe it was a huge iceberg made of solid hydrogen.

也许是一座由固体氢气组成的巨大冰山。

Before that, superheated hydrogen gas is everywhere.

在那之前，到处都是超热的氢气。

In the early 1920s, she used the latest learnings about quantum physics to come up with the idea that stars are all made mainly of hydrogen and helium gas.

在 20 世 20 年代初，她利用关于量子物理学的最新知识，提出了恒星主要由氢气和氦气组成的观点。

With oxygen and hydrogen gone, we've lost 75% of our elemental makeup, and only a pile of carbon, nitrogen, calcium, phosphorus and other trace elements would be what's left of our bodies.

随着氧气和氢气的消失，我们身体中75%的组成元素都会消失，剩下一堆碳，氮、钙、磷等的微量元素。