preliminary combustion
51Cyanide — This article is about the class of chemical compounds. For other uses, see Cyanide (disambiguation). The cyanide ion, CN−. From the top: 1. Valence bond structure 2. Space filling model 3. Electrostatic potential surface 4. Carbon lone pair… …
52Gulf War syndrome — (GWS) or Gulf War illness (GWI) is an illness reported by combat veterans of the 1991 Persian Gulf War typified by symptoms including immune system disorders and birth defects. It has not always been clear whether these symptoms were related to… …
53Formaldehyde — For other uses, see Formaldehyde (disambiguation). Formaldehyde …
54STS-50 — Infobox Space mission mission name = STS 50 insignia = STS 50 patch.svg shuttle = Columbia launch pad = 39A launch = June 25, 1992, 12:12:23 p.m. EDT landing = July 9, 1992, 7:42:27 a.m. EDT, Kennedy Space Center, Runway 33 duration = 13 days, 19 …
55Oil sands — The Athabasca oil sands in Alberta, Canada, are a very large source of bitumen, which can be upgraded to synthetic crude oil. Bituminous sands, colloquially known as oil sands or tar sands, are a type of unconventional petroleum deposit. The… …
56Paleocene–Eocene Thermal Maximum — The Paleocene/Eocene boundary, Ma|eocene, was marked by the most rapid and significant climatic disturbance of the Cenozoic Era. A sudden global warming event, leading to the Paleocene Eocene Thermal Maximum (PETM, alternatively nowrap| Eocene… …
57Spaceplane — A Space Shuttle rocketing into space, just after booster separation. A spaceplane is a vehicle that operates as an aircraft in Earth s atmosphere, as well as a spacecraft when it is in space. It combines features of an aircraft and a spacecraft,… …
58Health effects of tobacco — Part of a series on Tobacco …
59Vegetable oil used as fuel — For engines designed to burn #2 diesel fuel, the viscosity of vegetable oil must be lowered to allow for proper atomization of fuel, otherwise incomplete combustion and carbon build up will ultimately damage the engine. Many enthusiasts refer to… …
60Refuse-derived fuel — (RDF) or solid recovered fuel/ specified recovered fuel (SRF) is a fuel produced by shredding municipal solid waste (MSW) or steam pressure treating in an autoclave. RDF consists largely of organic components of municipal waste such as plastics… …
