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retrograde rocket system

См. также в других словарях:

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  • Project Mercury — Duration 1959 1963 Goal Place Americans into orbit for as long as one day Achievements First manned flight: May 5, 1961 First orbital flight …   Wikipedia

  • Retrorocket — A retrorocket (short for retrograde rocket ) is a rocket engine used to provide thrust opposing the motion of a spacecraft, thereby causing it to decelerate.HistoryOne of the first uses of retrorocket technology was in the Hajile project… …   Wikipedia

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  • Satellite — This article is about artificial satellites. For natural satellites, also known as moons, see Natural satellite. For other uses, see Satellite (disambiguation). An animation depicting the orbits of GPS satellites in medium Earth orbit …   Wikipedia

  • Orbital mechanics — A satellite orbiting the earth has a tangential velocity and an inward acceleration. Orbital mechanics or astrodynamics is the application of ballistics and celestial mechanics to the practical problems concerning the motion of rockets and other… …   Wikipedia

  • Mercury (planet) — Mercury  ☿ …   Wikipedia

  • Orbit — This article is about orbits in celestial mechanics, due to gravity. For other uses, see Orbit (disambiguation). A satellite orbiting the Earth has a tangential velocity and an inward acceleration …   Wikipedia

  • MGM-31 Pershing — Pershing was a family of solid fueled two stage medium range ballistic missiles designed and built by Martin Marietta to replace the Redstone missile as the United States Army s primary theater level weapon. The Pershing systems lasted over 30… …   Wikipedia

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