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What makes The Earth "spin"
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September 24th 03, 01:22 AM
Ralph Hertle
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Benoit:
An excellent sight.
Using Java place a point on a satellite, and the perspective shows 100s
of satellites that are visible in terms of the motion of the viewing point.
How did so many satellites get lined up in such a neat circular row and
spacing around the earth?
Ralph Hertle
Benoit Morrissette wrote:
On Mon, 22 Sep 2003 18:15:33 -0700 (PDT),
(Bill Sheppard)
wrote:
This is why all launchpads on Earth are
directed toward east AND are as close to the equator as they can be.
Vandenberg AFB on the U.S. west coast is used for polar orbit launches.
oc
Yup! I forgot polar orbits. Notice that theses are very energy-expensive. Have
you seen
http://liftoff.msfc.nasa.gov/RealTim.../JTrack3D.html
?
Good night!
Benoît Morrissette
Ralph Hertle