Rocket
A rocket (Italian rocchetta‚ "little fuse") is a missile, spacecraft, aircraft or other vehicle that obtains thrust from a rocket engine. Rocket engine exhaust is formed entirely from propellant carried within the rocket before use. Rocket engines work by action and reaction and push rockets forward simply by expelling their exhaust in the opposite direction at high speed, and can therefore work in the vacuum of space.
In fact, rockets work more efficiently in space than in an atmosphere. Multi-stage rockets are capable of attaining escape velocity from Earth and therefore can achieve unlimited maximum altitude. Compared with airbreathing engines, rockets are lightweight and powerful and capable of generating large accelerations. To control their flight, rockets rely on momentum, airfoils, auxiliary reaction engines, gimballed thrust, momentum wheels, deflection of the exhaust stream, propellant flow, spin, and/or gravity.
Rockets for military and recreational uses date back to at least 13th century China. Significant scientific, interplanetary and industrial use did not occur until the 20th century, when rocketry was the enabling technology for the Space Age, including setting foot on the moon. Rockets are now used for fireworks, weaponry, ejection seats, launch vehicles for artificial satellites, human spaceflight, and space exploration.
Latest News for: rockets
Mentor Public Library gives chance to build rockets
The Concord Township News-Herald
26 May 2019
Oyama’s rocket goal seals Puyallup’s first state title with 2-1 win over Mount Si
The News Tribune 26 May 2019EPA wants to triple the rocket fuel chemical allowed in drinking water
Democratic Underground 26 May 2019Steph Curry recalls pregame atmosphere before Warriors-Rockets Game 6
Yahoo Daily News 26 May 2019Terrorist Rocket Launches Leave 5 Civilians Dead, 12 Injured - Russian MoD
Sputnik 26 May 2019The week in TV: Hatton Garden, Summer of Rockets and more – review
The Guardian 26 May 2019Reaching for the stars: Winsted students’ experiments to go up in NASA rocket
Republican American 26 May 2019European election turnout to rocket by 38% as Nigel Farage’s Brexit Party set for historic victory
The Sun 26 May 2019Raptors defeat Bucks to advance to first NBA Finals
Houston Chronicle 26 May 2019Rocket hits Libya HQ of anti-Haftar lawmakers: witnesses
Modern Ghana 25 May 2019- 1
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