jkolb4's Comments | StumbleUpon.com http://www.stumbleupon.com/stumbler/jkolb4/comments jkolb4's recent comments on StumbleUpon en-us Sat, 12 Jul 2014 00:24:33 -0700 Wed, 01 Aug 2012 09:30:08 -0700 jkolb4's Comments | StumbleUpon.com http://www.stumbleupon.com/stumbler/jkolb4/comments http://cdn.stumble-upon.com/images/logo_su_36x36.png Wed, 01 Aug 2012 09:30:08 -0700 The Scale of the Universe 2 http://www.stumbleupon.com/su/1k0CXS http://www.stumbleupon.com/stumbler/jkolb4/comments#cid-74962559 http://www.stumbleupon.com/content/1k0CXS