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ShareThe traditional definition of a rocket is a vehicle, missile or aircraft which obtains thrust by the reaction to the ejection of fast moving fluid from within a rocket engine.
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There are many different types of rockets, and a comprehensive list can be found in spacecraft propulsion - they range in size from tiny models such as water rockets or small solid rockets that can be purchased at a hobby store, to the enormous Saturn V used for the Apollo program. Most current rockets are chemically powered rockets (internal combustion engines) that emit an exhaust gas.
A chemical rocket engine can use solid propellant (as does the Space Shuttle's SRBs), liquid propellant (as does the Space shuttle main engine), or a hybrid mixture of both.
A chemical reaction is initiated between the fuel and the oxidizer in the combustion chamber, and the resultant hot gases accelerate out of a nozzle (or nozzles) at the rearward-facing end of the rocket.
The acceleration of these gases through the engine exerts force ("thrust") on the combustion chamber and nozzle, propelling the vehicle (in accordance with Newton's Third Law).
For more information about the topic Rocket, read the full article at Wikipedia.org, or see the following related articles:
Multistage rocket — A multistage (or multi-stage) rocket is, like any rocket, propelled by the recoil pressure of the burning gases it emits as it burns fuel. What ... > read more
Solid-fuel rocket — A solid rocket or a solid fuel rocket is a rocket with a motor that uses solid propellants (fuel/oxidizer). The earliest rockets were solid fuelled, ... > read more
Rocket engine — A rocket engine is a reaction engine that can be used for spacecraft propulsion as well as terrestrial uses, such as missiles. Rocket engines take ... > read more
Model rocket — Model rocketry is a hobby similar to building model airplanes. In the hobby today, there are two distinct areas of rocket activity: amateur (or ... > read more
Military aviation — Military aviation is used to attack or defend a country through the sky. There are many types of military aircraft, but the basic types of military ... > read more
Water rocket — Water rockets are like their model rocket cousins, except that these are powered by a combination of water and air pressure instead of a chemical ... > read moreRecommend this page on Facebook, Twitter,
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