Jake demonstrates how to keep prying coworkers out of your secret stuff with this Altoids-tin storage box, complete with an "alarm" fashioned out of the guts of one of those musical greeting cards. Ah, the "sound of punishment." Enjoy.
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.