Paddle-Wheel Propeller Designs Take Flight, 115 Years Late

Researchers in Singapore have demoed a flying model that uses a strange paddle-wheel-like propeller design that was first patented in 1893. The cyclogyro's flat whirling propeller-blades look like the comical contraptions built in the years before and after the Wright brothers flights, but could potentially be more… » 2/25/08 6:46am 2/25/08 6:46am