That economic recession has hardly slowed down the growing swarm of robots designed for almost every task imaginable.
Many of them showcased their skills at Japan's International Robot Exhibition 2009, along with a host of human handlers. Consumers in the market for a pair of robot skates need not hold their breath for much longer.
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.