Does the drug commonly known as "bath salts" make you particularly crave the taste of human flesh? There's no scientific evidence that it does. But it certainly could lead to a bit of cannibalism as a side effect.
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.