The Louvre Museum in Paris overhauled their digital tour guide system last week, replacing it with, surprisingly, a stock of Nintendo 3DS consoles. Now you can browse the Venus de Milo and the Mona Lisa in...3-D! Or in real life, I guess, since you're already in the museum. (The resolution's better in real life.)
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.