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by David Turell , Thursday, December 22, 2011, 01:34 (4699 days ago)
http://blogs.scientificamerican.com/guest-blog/2011/12/21/big-bang-x-mas-tree/?WT_mc_id...
, Thursday, December 22, 2011, 01:34 (4699 days ago), Thursday, December 22, 2011, 01:34 (4699 days ago)