Valeswood Pearl hydrogen-fueled, power-assisted bicycle, which motors up to 15 MPH and takes you about 80 miles before you need to juice the batteries. When you're finished with all the hard labor of pedaling, the bike folds up neatly and can be tucked away in the trunk of your 9 MPG SUV.
Yves Rossy -- also known as the "Jet Man" -- built a deployable 3-meter wing, powered by dual jet engines, that is capable of reaching speeds of up to 100mph. In the demonstration, he jumps from a plane and flies for approximately 4-minutes, landing safely.
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