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by David Turell , Saturday, June 11, 2011, 14:43 (4893 days ago)
http://the-scientist.com/2011/05/30/the-gravity-of-life/
, Saturday, June 11, 2011, 14:43 (4893 days ago), Saturday, June 11, 2011, 14:43 (4893 days ago)