luminescent discharge

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• luminescence — luminescent, adj. /looh meuh nes euhns/, n. 1. the emission of light not caused by incandescence and occurring at a temperature below that of incandescent bodies. 2. the light produced by such an emission. [1885 90; < L lumin (see LUMEN) +… …   Universalium

• Fluorescent lamp — A fluorescent lamp or fluorescent tube is a gas discharge lamp that uses electricity to excite mercury vapor. The excited mercury atoms produce short wave ultraviolet light that then causes a phosphor to fluoresce, producing visible light.Unlike… …   Wikipedia

• Fire extinguisher — Extinguisher redirects here. Extinguisher may also refer to a candle snuffer. A stored pressure fire extinguisher …   Wikipedia

• lamp — lampless, adj. /lamp/, n. 1. any of various devices furnishing artificial light, as by electricity or gas. Cf. fluorescent lamp, incandescent lamp. 2. a container for an inflammable liquid, as oil, which is burned at a wick as a means of… …   Universalium

• annelid — /an l id/, n. 1. any segmented worm of the phylum Annelida, including the earthworms, leeches, and various marine forms. adj. 2. belonging or pertaining to the Annelida. Also, annelidan /euh nel i dn/. [1825 35; see ANNELIDA] * * * Any member of… …   Universalium

• Plasma (physics) — For other uses, see Plasma. Plasma lamp, illustrating some of the more complex phenomena of a plasma, including filamentation. The colors are a result of relaxation of electrons in excited states to lower energy states after they have recombined… …   Wikipedia

• Neon lamp — See also: Neon lighting A General electric NE 34 glow lamp, manufactured circa 1930. A neon lamp (also neon glow lamp) is a miniature gas discharge lamp that typically contains neon gas at a low pressure in a glass capsule. Only a thin region… …   Wikipedia

• Neon lighting — Times Square, New York City, has been famous for elaborate neon lighting displays since th …   Wikipedia

• Becquerel, Henri — ▪ French physicist Introduction in full  Antoine Henri Becquerel   born December 15, 1852, Paris, France died August 25, 1908, Le Croisic  French physicist (physical science) who discovered radioactivity through his investigations of uranium and… …   Universalium

• xenon — /zee non, zen on/, n. Chem. a heavy, colorless, chemically inactive, monatomic gaseous element used for filling radio, television, and luminescent tubes. Symbol: Xe; at. wt.: 131.30; at. no.: 54. [1898; < Gk xénon, neut. of xénos strange (see… …   Universalium

• Fusor — The Farnsworth–Hirsch Fusor, or simply fusor, is an apparatus designed by Philo T. Farnsworth to create nuclear fusion. It has also been developed in various incarnations by researchers including Elmore, Tuck, and Watson, and more lately by… …   Wikipedia