Remember back when 1,000 barrels a day sounded scary? The latest daily estimate of the oil spurting from the Deepwater Horizon leak has doubled to 25,000 to 30,000 barrels a day. That's up to 1.3 million gallons--roughly 10% of Exxon Valdez--every day.
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.