peak flame temperature
21Type Ia supernova — A Type Ia supernova is a sub category of cataclysmic variable stars that results from the violent explosion of a white dwarf star. A white dwarf is the remnant of a star that has completed its normal life cycle and has ceased nuclear fusion.… …
22Gas chromatography — A gas chromatograph with a headspace sampler Acronym GLC, GC Classification chromatography Analytes organic inorganic …
23MythBusters (2011 season) — Country of origin Australia United States Broadcast Original channel Discovery Channel Original run …
24Diesel engine — Diesel engines in a museum Diesel generator on an oil tanker …
25rare-earth element — /rair errth /, Chem. any of a group of closely related metallic elements, comprising the lanthanides, scandium, and yttrium, that are chemically similar by virtue of having the same number of valence electrons. Also called rare earth metal. [1955 …
26Chronologie de l'accident de la navette spatiale Challenger — La chronologie de la mission STS 51 L est la chronologie détaillée des événements depuis l allumage des moteurs principaux de challengers jusqu à la destruction des deux propulseurs d appoint à poudre, et comprend une transcription des… …
27United States — a republic in the N Western Hemisphere comprising 48 conterminous states, the District of Columbia, and Alaska in North America, and Hawaii in the N Pacific. 267,954,767; conterminous United States, 3,022,387 sq. mi. (7,827,982 sq. km); with… …
28Climate change in Washington — Main article: Climate change in the United States Digitally colored elevation map of Washington. Climate change in the American state of Washington is a subject of study and projection today. Contents …
29Coal — Sedimentary Rock Anthracite coal Composition Primary carbon Secondary hydrogen, sulfur …
30Phoenix, Arizona —   City   Images, from top, left to right: Downtown Phoenix skyline, Saint Mary s Basilica, Arizona Biltmore Hotel, T …
