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Dr. Carlson’s library of science videos includes his more detailed discussion of Free Fall. NASA has a number of good web pages on satellites and their orbits including this one on types of orbits. There are many physics web sites that describe the motion of satellites. A few java applications where you can attempt to make a satellite orbit correctly: 1) http://lectureonline.cl.msu.edu/~mmp/kap7/orbiter/orbit.htm
2) http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=398
3) http://www.grc.nasa.gov/WWW/k-12/rocket/corbit.html The Angry Birds Space game can be used to demonstrate some orbits. Launch a bird slowly and it falls inwards, too hard and it flies out of orbit. Launch it just right and it goes around and around awhile.
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TED-Ed
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New York, NY
Putting objects into orbit is very expensive because not only do you have to raise the object into the air, but you typically have to lift up most of the fuel you plan to use as well.
07/02/2013 • 
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