2. Solar-Powered Planes:
Solar powered technology is such a good idea that engineers aren't just limiting it to the roads. Enter Solar Impulse
, a unique solar airplane capable of crossing oceans and continents (and staying aloft day and night). Next year its manufacturers are gearing up for a fuel-less, around the world journey, which its supporters
can help track. Despite what Jules Verne said, it should definitely take fewer than 80 days.
Photo courtesy of Solar Impulse | Revillard | Rezo.ch