Gas that fills balloons

Usage examples of helium.

Electrical activity is up, helium emissions up, radon emissions up, foreshocks are occurring, though not directly within our nucleation zone.

The gravitational energy released in the collapse would heat the core further, eventually reaching the billion degrees necessary to initiate the fusion of helium nuclei into carbon, with other elements appearing through neutron capture along the lines Gamow had proposed.

Fifteen minutes later we received orders from the flagship to proceed toward Helium.

Savage had personally developed the alloy motors, and Doc, with help from Monk, had succeeded in synthesizing an inflating gas, noninflammable, with substantially greater lifting power than helium or hydrogen.

This was noninflammable and had greater lifting power than either helium or hydrogen.

The banners of Helium had been strung from stem to stern of each of our mighty craft, but the Zodangans did not need this sign to realize that we were enemies, for our green Martian warriors had opened fire upon them almost as they left the ground.

Moreover, there had never been any question about whether or not he would leave the Pachomian convent: his eventual departure was written in every little star that ever burped its hydrogen and farted its helium in the void above the roofless roof of the Rapunzel Suite.

Of burnt-out stars not even cinders were left, the last scraps of helium ash evanesced like table dust on a windy day.

Intelligent life form whose biochemistry is based on liquid helium and the thermoelectric effect.

Helium was but another of his awful blunders which I fear will sooner or later compel Zodanga to elevate a wiser man to his place.

The craft even without a propellor would still answer the purpose his plan required of it--provided the captors of Tara of Helium were a people without ships, and he had seen nothing to suggest that they had ships.

But then, when the temperature had dropped to a few thousand degrees, wildly streaming electrons slowed down to the point where atomic nuclei, mostly hydrogen and helium, could capture them, forming the first electrically neutral atoms.

The iron meteorites, besides metallic iron and nickel, of which they are almost entirely composed, contain hydrogen, helium, and carbonic oxide, and about the only imaginable way in which these gases could have become absorbed in the iron would be through the immersion of the latter while in a molten or vaporized state in a hot and dense atmosphere composed of them, a condition which we know to exist only in the envelopes of the sun and the stars.

We can compare the quantitative predictions of quantum theory with the measured wavelengths of spectral lines of the chemical elements, the behaviour of semiconductors and liquid helium, microprocessors, which kinds of molecules form from their constituent atoms, the existence and properties of white dwarf stars, what happens in masers and lasers, and which materials are susceptible to which kinds of magnetism.

An atom with one proton is an atom of hydrogen, one with two protons is helium, with three protons is lithium, and so on up the scale.