The 75 MPH Bicycle That's Powered by a Jet Engine

Robert Maddox is a builder and seller of real pulse jet engines with powers up to 1000 pounds... and if that's not a cool enough hobby, he's also bolted one to a bicycle. The 50-ish pounds of thrust developed by the engine could push the bike up to 75 MPH, which would be a real bone-shaker of a ride. And a deafening one too: the pulse jet engine makes a frightening racket, and its humming sound earned the Second World War cruise-missile V1s that used similar engines the nicknames buzzbomb and doodlebug. You can hear and see the results of this DIY craziness in the video. More »