Helium is one of our few non-renewable resources, and yet it is critical for many applications as an inert gas and as one of the coldest substances known. The unique properties of this “endangered ...

We all know the universe contains a vast array of elements, ranging from light gases, such as helium, to heavy metals, like lead. But where did all of the elements come from? The journey of the ...

a liquid element or a gaseous element. A molecule is made up of 2 or more atoms. These can be the same type or different. This diagram shows helium. Is helium a solid, liquid or a gas? Is it made ...

Why do spacecraft and rockets use helium, and what is so tricky about it? Helium is inert - it does not react with other substances or combust - and its atomic number is 2, making it the second ...

相关研究成果以“Coexistence of plastic and partially diffusive phases in a helium-methane compound”为题，发表在《国家科学评论》上 (National Science Review (2020), DOI ...

Elements of Webb Ep. 9: Why Does Webb Use Helium? Don’t lose your chill, but helium is the coolest element. (It's got the lowest boiling point!) Apply pressure, and it gets even cooler.

If you want to buy a helium-filled balloon for a celebration, then it's likely you'll be paying a bit more for the privilege. "Prices just keep going up and up," says Steve Durnford, director of ...

It was Henry Cavendish (no relation) who, around 1766, discovered the lightest element – what he called ... primarily composed of hydrogen and helium, pitting herself against the received ...

All stars are made almost completely of hydrogen and helium, but they contain small traces of heavier elements such as barium. Barium stars are on another level. In addition to barium, they ...