- liquid helium
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the liquified form of helium that does not solidify even at absolute zero; it shows unusual properties, such as superfluidity, due to quantum effects
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liquid helium
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Liquid helium — Helium exists in liquid form only at very low temperatures. The boiling point and critical point depend on the isotope of the helium; see the table below for values. The density of liquid helium at its boiling point and 1 atm is approximately… … Wikipedia
liquid helium — Helium in liquid form (below 4.22K), which has remarkable qualities, undergoing a striking change at 2.19K (see ↑superfluidity under ↑superfluid) • • • Main Entry: ↑helium … Useful english dictionary
liquid-helium temperature — helio temperatūra statusas T sritis fizika atitikmenys: angl. liquid helium temperature vok. Heliumtemperatur, f rus. гелиевая температура, f pranc. température de l’hélium liquide, f … Fizikos terminų žodynas
Helium — Hélium Traduction à relire Helium → … Wikipédia en Français
Hélium 4 — Hélium Traduction à relire Helium → … Wikipédia en Français
Helium — He li*um (h[=e] l[i^]*[u^]m), n. [NL., fr. Gr. h lios the sun.] (Chem.) An inert, monoatomic, gaseous element occurring in the atmosphere of the sun and stars, and in small quantities in the earth s atmosphere, in several minerals and in certain… … The Collaborative International Dictionary of English
Helium — otherusesHelium (He) is a colorless, odorless, tasteless, non toxic, inert monatomic chemical element that heads the noble gas group in the periodic table and whose atomic number is 2. Its boiling and melting points are the lowest among the… … Wikipedia
helium — /hee lee euhm/, n. an inert, gaseous element present in the sun s atmosphere and in natural gas, and also occurring as a radioactive decomposition product, used as a substitute for flammable gases in dirigible balloons. Symbol: He; at. wt.:… … Universalium
Hélium — Pour les articles homonymes, voir Helium (homonymie). Hélium Hydrogène ← Hélium → … Wikipédia en Français
Helium-3 refrigerator — A helium 3 refrigerator is a simple device used in experimental physics for obtaining temperatures down to about 0.2 kelvins. By evaporative cooling of helium 4 (the more common isotope of helium), a 1 K pot liquefies a small amount of helium 3… … Wikipedia
