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artificial satellite |
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artificial satellite [¦ärd·ə¦fish·əl ′sad·ə‚līt] (aerospace engineering) Any human-made object placed in a near-periodic orbit in which it moves mainly under the gravitational influence of one celestial body, such as the earth, sun, another planet, or a planet's moon. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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This artificial satellite, about the size of a basketball, took less than two hours to orbit the Earth, but the effect was huge and longlasting. First, TV stations send signals in the form of light waves to artificial satellites. Monday's flight occurred on the 47th anniversary of the former Soviet Union's launch of Sputnik I, the world's first artificial satellite. |
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