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Posted on April 15, 2011 at 8:44 AM EDT

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Posted on April 8, 2011 at 1:10 PM EDT

“ Metamaterials & Nature of Gravity? If metamaterials can reveal key insights into the Big Bang and the nature of time, can they also provide key... (read full comment) ” 

Posted on April 7, 2011 at 5:48 PM EDT

“ Sun's Route & Global Warming It would be interesting to learn how the referenced isotope levels align with known periods of global warming. Based... (read full comment) ” 

Posted on October 27, 2010 at 10:25 AM EDT

“ Is Gliese 710 "Nemesis"? Has anyone tried to determine if the sun and Gliese 710 orbit each other as a binary star system? If they do, has... (read full comment) ” 

Posted on March 15, 2010 at 6:55 PM EDT