The first morning of this year's Los Angeles auto show, the CEO of General Motors, Fritz Henderson, was scheduled to give the keynote address. The night before, he got fired. (Excuse me: He "resigned"). That, however, was the only real drama at this year's show, and for the sake of the auto industry, that's a good thing.
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.