spark metal
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Metal bellows — are elastic vessels that can be compressed when pressure is applied to the outside of the vessel, or extended under vacuum. When the pressure or vacuum is released, the bellows will return to its original shape (provided the material has not been … Wikipedia
spark chamber — n. any of several devices for detecting charged subatomic particles, decay products, rays, etc., consisting usually of a large group of closely spaced, oppositely charged metal plates between which sparks will jump through an inert gas, as neon,… … English World dictionary
Spark plug — A spark plug (also, very rarely nowadays, in British English: a sparking plug) is an electrical device that fits into the cylinder head of some internal combustion engines and ignites compressed aerosol gasoline by means of an electric spark.… … Wikipedia
Spark-gap transmitter — A spark gap transmitter is a device for generating radio frequency electromagnetic waves. These devices served as the transmitters for most wireless telegraphy systems for the first three decades of radio (1887 ndash;1916) and the first… … Wikipedia
spark — spark1 [spa:k US spa:rk] n ▬▬▬▬▬▬▬ 1¦(fire)¦ 2¦(electricity)¦ 3 spark of interest/excitement/anger etc 4¦(cause)¦ 5¦(intelligence/energy)¦ 6 sparks ▬▬▬▬▬▬▬ [: Old English; Origin: spearca] 1.) ¦(FIRE)¦ a … Dictionary of contemporary English
spark spectrum — noun : the spectrum of a substance (as a metal) produced by using light from sparks passing between electrodes composed of that substance compare arc spectrum * * * Physics. a spectrum formed from the light produced by an electric spark,… … Useful english dictionary
Spark arrestor — A spark arrestor is a device intended to prevent combustible materials, usually sparks or other tiny flaming debris, from escaping into areas where they might start fires.They are most commonly used in conjunction with motor vehicles (inserted… … Wikipedia
Metal (musique) — Heavy metal (musique) Pour les articles homonymes, voir Heavy metal. Heavy metal Origines stylistiques Blues rock … Wikipédia en Français
Metal rock — Heavy metal (musique) Pour les articles homonymes, voir Heavy metal. Heavy metal Origines stylistiques Blues rock … Wikipédia en Français
Métal (musique) — Heavy metal (musique) Pour les articles homonymes, voir Heavy metal. Heavy metal Origines stylistiques Blues rock … Wikipédia en Français
Metal roof — A metal roof, often referred to as a tin roof, is a roofing system made from metal pieces or tiles. It is a component of the building envelope. Enough corrugated zinc/aluminium sheeting to cover an average sized house, transported by motor cycle … Wikipedia
