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reaction engine fuel

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  • Reaction engine — A reaction engine is an engine which provides propulsion by expelling reaction mass, in accordance with Newton s third law of motion. This law of motion is most commonly paraphrased as: For every action force there is an equal, but opposite,… …   Wikipedia

  • reaction engine — /riˈækʃən ɛndʒən/ (say ree akshuhn enjuhn) noun an engine that develops thrust by reaction to the ejection of a substance from it, especially an engine that ejects a stream of gases created by the burning of fuel within itself as a rocket or jet… …  

  • reaction engine — noun Any engine that generates thrust by expelling matter, especially hot gases produced by igniting a fuel; either a rocket engine or several types of jet engine …   Wiktionary

  • fuel cell — a device that produces a continuous electric current directly from the oxidation of a fuel, as that of hydrogen by oxygen. [1920 25] * * * Device that converts chemical energy of a fuel directly into electricity (see electrochemistry). Fuel cells …   Universalium

  • fuel — n. & v. n. 1 material, esp. coal, wood, oil, etc., burnt or used as a source of heat or power. 2 food as a source of energy. 3 material used as a source of nuclear energy. 4 anything that sustains or inflames emotion or passion. v. (fuelled,… …   Useful english dictionary

  • Engine efficiency — of thermal engines is the relationship between the total energy contained in the fuel, and the amount of energy used to perform useful work. There are two classifications of thermal engines (1) Internal combustion (gasoline, diesel and gas… …   Wikipedia

  • Fuel efficiency — is a form of thermal efficiency, meaning the efficiency of a process that converts chemical potential energy contained in a carrier fuel into kinetic energy or work. Overall fuel efficiency may vary per device, which in turn may vary per… …   Wikipedia

  • Reaction Engines Limited — Type Private Industry Aerospace Founded 1989 …   Wikipedia

  • Fuel cell — For other uses, see Fuel cell (disambiguation). Demonstration model of a direct methanol fuel cell. The actual fuel cell stack is the layered cube shape in the center of the image A fuel cell is a device that converts the chemical energy from a… …   Wikipedia

  • Engine — This article is about a machine to convert energy into useful mechanical motion. For other uses of engine, see Engine (disambiguation). For other uses of motor, see Motor (disambiguation). A V6 internal combustion engine from a Mercedes car An… …   Wikipedia

  • Reaction Engines Skylon — In aerospace, Skylon is a proposal by Reaction Engines Limited (managed by British rocket scientist Alan Bond) for a single stage, turbojet based, airbreathing orbital spaceplane.The vehicle would be a hydrogen powered aircraft that would take… …   Wikipedia

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