Home » BBC News - Technology » technology news » The drone designed to fly on one propeller The drone designed to fly on one propeller Unknown 12:33 AM BBC News - Technology technology news BBC Click's Spencer Kelly finds out why a drone with one propeller was created. from BBC News - Technology http://ift.tt/2f6iM9E Share: Facebook Twitter Google+ StumbleUpon Digg Delicious LinkedIn Reddit Technorati