BTW I just built a motor that runs on water, seriously. The spokes were designed with Sin/Cos in Blitz. Blitz is very handy when it comes to Spoke and Wheel design (I had more spectacular, artistic designs, but the construction required a simple one).
http://www.melog.ch/watermotor/
Hard to believe, even for me, now that I'm sitting right beside a running model.
http://www.melog.ch/watermotor/
Hard to believe, even for me, now that I'm sitting right beside a running model.