artificial Earth satellites

См. также в других словарях:

• Earth satellite — ▪ instrument  man made object launched into a temporary or permanent orbit around the Earth. Spacecraft of this type may be either manned or unmanned, the latter being the most common.       The idea of an artificial satellite in orbital flight… …   Universalium

• Artificial satellites in retrograde orbit — Artificial satellites are rarely placed in retrograde orbit. This is partly due to the extra velocity required to go against the direction of the rotation of the earth. ExamplesIsrael has successfully launched five Shavit satellites in retrograde …   Wikipedia

• earth|day — Earth Day, a day in April set aside by environmentalists to dramatize the need for pollution control: »By the time Earth Day dawned on April 22, eco activists of all ages were suffused with quasi religious fervor (Time). earth|day «URTH DAY»,… …   Useful english dictionary

• earth resources satellite — earth resources satellite, an artificial satellite that gathers data on the earth s natural resources: »The use of Landsat and other earth resources satellites is booming, not only among research scientists but among farmers, explorers, and a… …   Useful english dictionary

• Earth Sciences — ▪ 2009 Introduction Geology and Geochemistry       The theme of the 33rd International Geological Congress, which was held in Norway in August 2008, was “Earth System Science: Foundation for Sustainable Development.” It was attended by nearly… …   Universalium

• Earth's magnetic field — Computer simulation of the Earth s field in a normal period between reversals.[1] The tubes represent magnetic field lines, blue when the field points towards the center and yellow when away. The rotation axis of the Earth is centered and… …   Wikipedia

• Earth — This article is about the planet. For other uses, see Earth (disambiguation). Earth   …   Wikipedia

• Earth observation satellites transmission frequencies — The earth is constantly being monitored by a great number earth observation satellites. These artificial satellites have onboard sensors from which they gather data. The data is transmitted back to earth via radio frequency. This article lists a… …   Wikipedia

• Satellites artificiels — Satellite artificiel Pour les articles homonymes, voir satellite et Sat. Le satellite de météorologie GOES O avant son lancement en …   Wikipédia en Français

• Satellites scientifiques — Satellite artificiel Pour les articles homonymes, voir satellite et Sat. Le satellite de météorologie GOES O avant son lancement en …   Wikipédia en Français

• Earth's orbit — In astronomy, The Earth s Orbit involves the Earth orbiting the Sun at an average distance of about 150 million kilometers every 365.2564 mean solar days (1 sidereal year). From Earth, this gives an apparent movement of the Sun with respect to… …   Wikipedia