The cloud of doom that hovered over the last several North American International Auto Shows is finally gone. Detroit's Cobo Hall was a busy place this week, as the world's automakers unveiled an inspired crop of attractive sedans (many of them hybrids, and some with a plug), sports cars, and concepts. Here's a look at the highlights.
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.