If you're still undecided, somehow, you should know about these weird psychological cues that could sway your vote. Sometimes it's not the big issues--sometimes it's, like, did your team win its most recent game. Seriously.
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.