The Solar Impulse, a solar-powered single person plane that uses 12,000 solar cells to achieve flight, is in the middle of its first 24 hour flight attempt. If successful, it could pave the way for using solar energy as a viabl...

Pedal powered airplanes are old business, that I know.  But for a 19-year to accomplish the same feat with no previous flying experience, that is the stuff that history is made of. Built by Dutch teenager Jesse van Kuijk, the p...