PopSci contributor Chuck Cage—a.k.a. the Toolmonger—is the man, plain and simple. Not only did he spend more than 75 hours completely gutting a Fender Squier Strat to make a wireless Guitar Hero controller, but he did it for charity. And then posted an extremely comprehensive blog post about it. Even though he got to play the controller for just 10 minutes before sending it to the charity event where it's being auctioned off, Chuck reports that it feels much more, ahem, "realistic" than the chintzy plastic controllers you usually use to play the game. Makes me want to run home right now and take apart my ax—I sound better in GH2 than I ever have in real life anyway. Chuck, you are my guitar hero.—Joe Brown
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.