Taking Back Astronomy: The Heavens Declare Creation
4.16
it was ok
Jun 06, 2013
Jun 06, 2013
 
Vanishing Voices: The Extinction of the World's Languages
3.80
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Dec 20, 2009
Jul 20, 2009
 
How to Build a Robot Army: Tips on Defending Planet Earth Against Alien Invaders, Ninjas, and Zombies
3.69
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Jan 17, 2009
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How to Survive a Robot Uprising: Tips on Defending Yourself Against the Coming Rebellion
3.42
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Nov 04, 2008
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Death by Black Hole: And Other Cosmic Quandaries
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