I know this is not a video, but it is well worth reading:
http://www.ams.org/notices/200503/fea-weil.pdf
http://www.ams.org/notices/200503/fea-weil.pdf
Quote from AlpineTrout:
Good idea. I'll have to dig up something on the Double Slot (or Slit) experiment. That freaks me out every time I think about.
Well here's a cartoon video, but it gives the basic idea well.
http://www.youtube.com/watch?v=DfPeprQ7oGc