Tuesday, June 5, 2012

Questions and Answers




Questions and Answers

How do satellites aid communication????

Satellites, first, what is the purpose of satellites? Satellites are used for many purposes. The main purpose is to find about the universe, the closer stars and galaxies where man cannot reach but need to discover  them. They are also used for accurate weather forecasts, to find out what is happening at the other part of the Earth, they are useful to track danger to our country.Another essential purpose is to carry communications such as radio, television, telephone messages around the world. For this purpose, communication satellites are used and they are ‘parked’ in an orbit where they remain in position for a specific part of Earth. Satellites orbiting the Earth travel at high speed to escape the Earth’s gravity. Geostationary satellites are as well positioned over their areas they are needed and are also used as spy satellites.



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