Propulsion

system of vehicle propulsion

thumb|Armadillo Aerospace's quad [[rocket vehicle showing shock diamonds in the exhaust plume from its propulsion system]] Propulsion is the generation of force by any combination of pushing or pulling to modify the translational motion of an object, which is typically a rigid body (or an articulated rigid body) but may also concern a fluid. The term is derived from two Latin words: pro, meaning before or forward; and pellere, meaning to drive. A propulsion system consists of a source of mechanical power, and a propulsor (means of converting this power into propulsive force).

spacecraft propulsion system which uses electricity

car and truck technology

electrical phenomenon

aircraft

used to transmit power on bicycles, tricycles, quadracycles, unicycles, or other human-powered vehicles from the riders to the drive wheels

thrust produced by passing a jet of matter in the opposite direction to the direction of motion