the Sumanas, Inc
Roger A. Freedman
This web site contains two animated tutorials that demonstrate different astronomy concepts. These are: Moon's Phases shows how the motion of the moon relative to the Earth and Sun change the appearance of the moon and Sidereal and Synodic Months demonstrates the rotation of the Earth around the Sun, and the rotation of the Moon around the Earth, defines different periods of time.
%0 Electronic Source %D May 30, 2007 %T Animated Tutorials: Astronomy %I Sumanas, Inc %V 2017 %N 18 January 2017 %8 May 30, 2007 %9 application/flash %U http://www.sumanasinc.com/webcontent/animations/astronomy.html
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