(helium)
81Helium (Haskell) — Infobox Software name = Helium logo = caption = Hint interpreter developer = Utrecht University latest release version = 1.6 latest release date = Feb 7, 2006 operating system = Cross platform (Windows, Mac OS X, ...) genre = Compiler license =… …
82Helium-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… …
83Helium-neon laser — A helium neon laser, usually called a HeNe laser, is a type of small gas laser. HeNe lasers have many industrial and scientific uses, and are often used in laboratory demonstrations of optics. Its usual operation wavelength is 632.8 nm, in the… …
84Helium release valve — A helium release valve, or helium escape valve, as it is also called, is a feature found on some diving watches. It provides functionality for professional divers operating at great depths for prolonged periods of time.When commercial divers… …
85Helium-Cadmium-Laser — Die Helium Cadmium Laser sind Metalldampf Gaslaser für den blauen und nahen UV Spektralbereich. Leistung: 10 mW ... 200 mW Kohärenzlänge: ca. 30 cm Wellenlängen: 325 nm (UV) und 442 nm (blau) Anwendungen: Grundlagenforschung,… …
86Helium (homonymie) — Cette page d’homonymie répertorie les différents sujets et articles partageant un même nom. L hélium est un élément chimique. L hélium 3 est un isotope non radioactif d hélium. (895) Helio est un astéroïde portant le nom latin de cet élément… …
87Hélium liquide — L hélium est liquéfié (T=4,2K) pour la première fois en 1908 par Heike Kamerlingh Onnes. Procédé de liquéfaction Usages L hélium liquide peut être utilisé dans le refroidissement de bobines supraconductrices. L isotope 4 de l hélium est… …
88Helium ionization detector — A helium ionization detector (HID) is a type of detector used in gas chromatography. PrincipleAn HID is an ion detector which uses a radioactive source to produce ions. The radioactive source ionizes helium atoms by bombarding them with emissions …
89Helium-Flash — Der Helium Blitz (auch Helium Flash) bezeichnet die explosionsartige Fusion von Helium im Drei Alpha Prozess am Ende der Entwicklung massearmer Hauptreihensterne. Nach Erlöschen des Wasserstoffbrennens kontrahiert der Kern des Sternes, doch… …
90Helium-Neon-Laser — helio neono lazeris statusas T sritis radioelektronika atitikmenys: angl. helium neon laser vok. Helium Neon Laser, m rus. гелий неоновый лазер, m pranc. laser à mélange d hélium et néon, m; laser hélium néon, m …
