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solar communications system

См. также в других словарях:

  • Defense Satellite Communications System — The Defense Satellite Communications System (DSCS)[1] provides the United States with military communications to support globally distributed military users. DSCS will be replaced by the Wideband Global SATCOM system. A total of 14 DSCS III… …   Wikipedia

  • Defense Satellite Communications System — Le Defense Satellite Communication System (DSCS) est une série de satellites militaires américains offrant des services de communications entre utilisateurs répartis sur tout le globe. La coordination du programme est assurée par la Defense… …   Wikipédia en Français

  • Solar sail — Solar sails (also called light sails or photon sails, especially when they use light sources other than the Sun) are a proposed form of spacecraft propulsion using large membrane mirrors. Radiation pressure is about 10 5 Pa at Earth s distance… …   Wikipedia

  • Fleet Satellite Communications System — FLTSATCOM (also FLTSAT) was a satellite communication system of the U.S. Navy which was used for UHF radio communications between ships, submarines, airplanes and ground stations of the U.S. Navy.Altogether eight satellites were launched in the… …   Wikipedia

  • Solar power satellite — A solar power satellite, or SPS or Powersat, as originally proposed would be a satellite built in high Earth orbit that uses microwave power transmission to beam solar power to a very large antenna on Earth. Advantages of placing the solar… …   Wikipedia

  • Communications in India — This article is about communications in India. For a more general coverage of media in India, see Media of India. The Republic of India possesses a diversified communications system that links all parts of the country by Internet, telephone,… …   Wikipedia

  • Solar conjunction — occurs when a planet or other solar system object is on the opposite side of the sun from the Earth. From an Earth reference, the object will pass behind the sun. Communication with any spacecraft in solar conjunction will be severely limited due …   Wikipedia

  • Solar cycle — The solar cycle, or the solar magnetic activity cycle, is the main source of periodic variation of all solar phenomena driving variations in space weather. [ [http://www7.nationalacademies.org/ssb/SSB Space weather97.pdf Space Weather: A Research …   Wikipedia

  • Communications satellite — A communications satellite (sometimes abbreviated to COMSAT) is an artificial satellite stationed in space for the purpose of telecommunications. Modern communications satellites use a variety of orbits including geostationary orbits, Molniya… …   Wikipedia

  • The Solar Car Challenge — Solar Car Challenge Established 1993 Location United States Website www.solarcarchallenge/challenge [1] The Solar Car Challenge is an annual solar powered car race for high school students.The eve …   Wikipedia

  • solar cell — a photovoltaic cell that converts sunlight directly into electricity. * * * Any device that directly converts the energy in light into electrical energy through the process of photovoltaics (see photovoltaic effect). Solar cells do not use… …   Universalium

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