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Satellites
Part 1 of Paper
....ronic eyes from hundreds of miles overhead, they
lead prospectors to mineral deposits invisble on earth's surface. Relaying
communications at the speed of light, they shrink the planet until its most
distant people are only a split second apart. They beam world weather to our
living room TV and guide ships through stor.... Part 2 of Paper
....lways critical with
machines whose sunward side may be 300 degress hotter than the shaded part.
Once a satellite achieves orbit--that delicate condition in which the pull of
earth's gravity is matched by the outward fling of the crafts speed--subtle
pressures make it go astray. Solar flares make the satellite go out of orbit.
Wisps of outer atmosphere drag its speed. Like strands of spiderweb, gravity
feilds of the earth, moon, and sun tug at the orbiting spacefarer. Even the
sunshine's soft .... |
| Number of words: 482 - Approximate pages: 2 |
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