solar power Solar-powered roads could refuel cars as they drive In Depth Solar Roadways seeks $1m by the end of the month to put its working prototype into production In Depth Solar Impulse II: Swiss pilots to circle globe in solar plane Speed Read Aircraft unveiled this week has a wingspan greater than that of a 747 but weighs just 1.6 tonnes By The Week Staff Published 10 April 14 Speed Read 1 2 3
