There's still time to enter our Future of Magazines contest over on Facebook, where you could win a Samsung Galaxy Tab. That is, if your ideas for the future of magazines is on par with some of our favorite entrants so far. See those in the gallery below, and find more info on the contest over on Facebook.
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.