Tesla's CEO says he will reveal 'the fifth mode of transportation' on Aug. 12. Let's hope its something really cool, and not a Segway. The smart money says it's pods moving through magnetic levitation.
Bertrand Picccard, best known for his round-the-world flight in a balloon, is now flying something new — a carbon-fiber airplane bristling with photovoltaic cells. It's got the wingspan of a 747 and the weight of a VW Bug.