We watched part of a cool video, <i>The Way Things Go</i> by Peter 
Fischli and David Weiss, of a rube goldberg machine. As I couldn't 
record the video, here are links to <a target=_blank 
href="http://en.wikipedia.org/wiki/The_Way_Things_Go">the wikipedia page 
on the video</a> and <a target=_blank 
href="http://www.youtube.com/watch?v=GXrRC3pfLnE">a three-minute clip on 
YouTube</a> from the thirty-minute video.