http://feeds.boingboing.net/~r/boingboing/tv/~5/349162261/bbtv_2008-07-28-211436.mp4 Multi-millenial Mechanical clocks - Long Now "Mechanicrawl" pt. 1 http://tv.boingboing.net/2008/07/28/multimillenial-mecha.html 2008-07-29 http://boingboing.net/mtimages/bbvideo.png