The Prototype That Llops in Front of Us

An underwater wind turboine would be similar to a tidal turbine. The diameters are reconfigurable, so we can put different sized blades on them. We've had some thatve been look likein one of those lawn mowers that spin round. And in finaly, we've had some sort of flapping hydrophoils that look a little bit like a dolphin's tailso lots of prototypes.