4 ms·Invention: Rolling (bladeless) fluid turbine21 points by dandare 11y agodandare 11y agoDisclaimer: I am the son of the inventor.zafka 11y agoVery cool. I see one of the companies that sprouted is near me(West Palm Beach). I want to play with this!dandare 11y agoGlue a straw to a ping-pong ball and suspend it in the bathtub's drain ;)