Part 2 http://www.youtube.com/watch?v=H7aiBbA8_Fg
Part 3 http://www.youtube.com/watch?v=29HxzgqlWrM
Tautology!
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I suspect, though, that Larry Moran would consider this an appropriate
textbook in an astronomy course. . . h/t: A tweet from Dr. Brooke Magnanti
via Matth...
1 minute ago


