Inside a green and wired Swedish home:
target="popup1" class="sidebar">Click here to browse through a photo gallery of the Tango complex.
Read the feature article "It Takes Tech to Tango."
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.