The Hyperbike, by Curtis DeForest, tries to create a human-powered vehicle that will be faster than traditional bicycles. I can see how the rider can input more energy, but that thing has to weigh a lot more than a 10 speed!

In creating the HyperBike, DeForest tried to remedy the flaws of the standard bicycle. For one thing, it has no seat; the rider stands upright. Also, the arms are used for additional power. DeForest describes pedaling the HyperBike as "swimming on dry land." Motor vehicle speeds of at least fifty miles per hour are easily attained.

Read more about the Hyperbike