Bicycle powered helicopter wins Canadian inventors $250,000 prize

By inventing a remarkable helicopter powered solely by pedal power, engineers at the University of Toronto have claimed a cash prize that has gone unclaimed for 33 years. A Canadian-built helicopter that is powered by a human riding a bicycle has become the first winner of a decades-old $250,000 (£165,000) engineering prize. The American Helicopter Society had never given out its Igor Sikorsky Human-Powered Helicopter Award - initiated 33 years ago - until the team from the University of Toronto won it thi