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An explosion in a rocket engine during startup, usually due to the presence of too much propellant prior to ignition.
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hard start
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Hard start — A hard start is a rocketry term referring to an explosion of a rocket engine at ignition.Rocket ignitionRocket fuels, hypergolic or otherwise, must be mixed in the right quantities to have a controlled rate of production of hot gas. A hard start… … Wikipedia
Hard disk drive — Hard drive redirects here. For other uses, see Hard drive (disambiguation). Hard disk drive Mechanical interior of a modern hard disk drive Date invented 24 December 1954 [1] … Wikipedia
Hard water — is the type of water that has high mineral content (in contrast with soft water ). Hard water minerals primarily consist of calcium (Ca2+), and magnesium (Mg2+) metal cations, and sometimes other dissolved compounds such as bicarbonates and… … Wikipedia
Hard, Hard Times — is a traditional Newfoundland folk song/ballad. There is an earlier version, from England, called Rigs of the Times . The latest version written in 1936 at the time of the Great Depression by William Emberley of Bay de Verde and performed by Dick … Wikipedia
Hard coding — (also, hard coding or hardcoding) refers to the software development practice of embedding input or configuration data directly into the source code of a program or other executable object, or fixed formatting of the data, instead of obtaining… … Wikipedia
Hard to Be Human — Studioalbum von Save Our Souls Veröffentlichung April 2009 Aufnahme November 2008 März 2009 Labe … Deutsch Wikipedia
Start from the Dark — Álbum de Europe Publicación 22 de setiembre de 2004 Grabación Studios 301, Little Big Room, Estocolmo, Suecia, 2004 Género(s) Heavy metal … Wikipedia Español
Hard Hearted Hannah (The Vamp of Savannah) — is a popular song from Tin Pan Alley.The music was written by Milton Ager, the lyrics by Charles Bates, Bob Bigelow and Jack Yellen. The song was published in 1924 by Ager, Yellen Bornstein, Inc. [ [http://www.ascap.com/ace/search.cfm?requesttimeo… … Wikipedia
Start from the Dark — Album par Europe Sortie 22 Septembre 2004 Enregistrement 2004 Studios 301, Little Big Room, Stockholm … Wikipédia en Français
Hard sectoring — in a magnetic or optical data storage device is an archaic form of sectoring which uses a physical mark or hole in the recording medium to reference sector locations. In older 8 and 5¼ inch floppy disks, hard sectoring was implemented by punching … Wikipedia
