How Gravity Explains Why Time Never Runs Backward http://t.co/zBDlLTCg4S
— Thierry Crouzet (@crouzet) November 5, 2014
via Twitter http://ift.tt/1iA842H
How Gravity Explains Why Time Never Runs Backward http://t.co/zBDlLTCg4S
— Thierry Crouzet (@crouzet) November 5, 2014
via Twitter http://ift.tt/1iA842H