air quenching
51Iron — Fe redirects here. For other uses, see Fe (disambiguation). This article is about the chemical element. For other uses, see Iron (disambiguation). manganese …
52Nitric oxide — Not to be confused with nitrous oxide or nitrogen oxides. For other uses, see NO (disambiguation). Nitric oxide …
53Annealing (metallurgy) — Annealing, in metallurgy and materials science, is a heat treatment wherein a material is altered, causing changes in its properties such as strength and hardness. It is a process that produces conditions by heating to above the recrystallization …
54Europe, history of — Introduction history of European peoples and cultures from prehistoric times to the present. Europe is a more ambiguous term than most geographic expressions. Its etymology is doubtful, as is the physical extent of the area it designates.… …
55Dielectric gas — A dielectric gas, or insulating gas, is a dielectric material in gaseous state. Its main purpose is to prevent or rapidly quench electric discharges. Dielectric gases are used as electrical insulators in high voltage applications, e.g.… …
56Polychlorinated dibenzodioxins — See also: 2,3,7,8 Tetrachlorodibenzodioxin, Dioxins and dioxin like compounds, and 1,4 Dioxin General structure of PCDDs where n and m can range from 0 to 4 Polychlorinated dibenzodioxins (PCDDs), or simply dioxins, are a group of organic… …
57Environmental impact of the oil shale industry — Kiviõli Oil Shale Processing Chemicals Plant in Ida Virumaa, Estonia Environmental impact of the oil shale industry includes the consideration of issues such as land use, waste management, and water and air pollution caused by the extraction and… …
58Hemi engine — A Hemi engine (from hemisphere ) is an internal combustion engine in which the combustion chambers are of hemispherical form. Chrysler Corporation has registered HEMI as a trademark in the United States [United States Patent and Trademark Office… …
59Magnifying transmitter — The magnifying transmitter was designed to implement Wireless energy transmission by means of the disturbed charge of ground and air method. The magnifying transmitter is an advanced version of Tesla coil transmitter. It is a high power harmonic… …
60Karkala — Infobox Indian Jurisdiction native name = Karkala| other name = Karikallu (ಕರಿಕಲ್ಲು) nickname = Jain Thirth skyline = Karkal.jpg skyline caption = Entrance Gate of Padutirupathi Sri Venkataramana Temple image up = India Karnataka locator map.svg… …
