information about ROCKET SCIENCE
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Rockets or other similar reaction devices carrying their own propellant must be used when there is no other substance (land, water, or air) or force (gravity, magnetism, light) that a vehicle may usefully employ for propulsion, such as in space. In these circumstances, it is necessary to carry all the propellant to be used.
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When a rocket is in flight, four forces act on it: weight, thrust, and the two aerodynamic forces, lift and drag. The amount of the weight depends on the mass of all of the parts of the rocket. ... Aerodynamics is the branch of science that explains the motion of air and the forces on bodies moving through the air.
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