The guy who made this does some interesting experiments. Not that this would be a substitute for nuclear power or anything on that scale, but if you scaled this up, I wonder how effective at producing power it would be?
(EDIT: This vid could equally go into the Oddworld Spotting topic. It uses the same music as
that diving vid in said topic at 1:02. I wonder where the music is from and how it relates to Oddworld, if at all.)