Post published:September 17, 2012Reshared post from +Robert CooperThis. A thousand times this. Tags: Google+Read more articles Previous PostCool sky tonight! Next PostThis is pretty awesome You Might Also Like Really cool light painting using multiple Roombas July 1, 2011 Undo DOMA July 29, 2011 Sadly, today is my final day at +Last.fm July 13, 2012