As a PopSci reader, odds are you also may be interested in our sister publication Sound+Vision. In our digital world, you're probably finding yourselves immersed in movies, music and other media almost constantly. Sound+Vision is your guide to enjoying it all with the best gear possible, whatever you budget or interests. The new site, launching today, has been redesigned from top to bottom to deliver all you need to navigate today's A/V world like an expert. Check it out today!
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.