nuclear powered

Nuclear propulsion includes a wide variety of propulsion methods that use some form of nuclear reaction as their primary power source. Many military submarines and a growing figure - with crude prices and emission in mind - of large surface ships, especially icebreakers, use nuclear reactors as their power plants (see nuclear marine propulsion for civil use and nuclear navy for naval use). In addition, various types of nuclear propulsion have been proposed, and some of them tested, for spacecraft applications:Antimatter catalyzed nuclear pulse propulsionBussard ramjetFission-fragment rocketFission sailFusion rocketGas core reactor rocketNuclear electric rocketNuclear photonic rocketNuclear pulse propulsionNuclear salt-water rocketNuclear thermal rocketRadioisotope rocket
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This article is a subarticle of Nuclear power A nuclear reactor is a device in which nuclear chain reactions are initiated, controlled, and sustained at a steady rate, as opposed to a nuclear bomb, in which the chain reaction occurs in a fraction of a second and is uncontrolled.The most significant use of nuclear reactors is as an energy source for the generation of electrical power (see Nuclear power) and for the power in some ships (see Nuclear marine propulsion). This is usually accomplished by methods that involve using heat from the nuclear reaction to power steam turbines. There are also other less common uses as discussed below.
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