Since Windows 7, Microsoft's been busily honing the interface for Windows tablets, which uses a bold bunch of squares and rectangles in flat neon colors and has been christened "Metro." Windows 8--undoubtedly the biggest change to the operating system in a few generations--finally brings Metro to the desktop. So how does it work with a keyboard and mouse?
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.