open circuit failsafe

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• Track circuit — A track circuit is a simple electrical device used to detect the presence or absence of a train on rail tracks, used to inform signallers and control relevant signals. Principles and operation The basic principle behind the track circuit lies in… …   Wikipedia

• Diver rescue — Beaching a casualty while providing artificial respiration Diver rescue, following an accident, is the process of avoiding or limiting further exposure to diving hazards and bringing a SCUBA diver to safety.[1] A safe place is often a place where …   Wikipedia

• Bipolar junction transistor — BJT redirects here. For the Japanese language proficiency test, see Business Japanese Proficiency Test. PNP …   Wikipedia

• Boiling water reactor — A boiling water reactor (BWR) is a type of nuclear reactor developed by the General Electric in the mid 1950s.Fact|date=April 2008 The BWR is characterized by two phase fluid flow (water and steam) in the upper part of the reactor core. See… …   Wikipedia

• Pickens, Slim — (1919–1983)    Slim Pickens was born Louis Bert Lindley Jr. in Kingsberg, California, in 1919, and started out as a Texas cowhand. He took the pseudonym of Slim Pickens when he joined the rodeo circuit as a clown in the 1930s. He also competed as …   The Encyclopedia of Stanley Kubrick

• Fail-safe — or fail secure describes a device or feature which, in the event of failure, responds in a way that will cause no harm or at least a minimum of harm to other devices or danger to personnel. Definitions*“A device that will provide its intended… …   Wikipedia

• Maglev — JR Maglev at Yamanashi, Japan test track in November 2005 …   Wikipedia

• Fusion power — The Sun is a natural fusion reactor. Fusion power is the power generated by nuclear fusion processes. In fusion reactions two light atomic nuclei fuse together to form a heavier nucleus (in contrast with fission power). In doing so they release a …   Wikipedia