It sounds like just another uber-meltable cheese product, but Vavelta is actually miles away from anything you'd want to put in your mouth. It's a radical new treatment for facial pitting, scarring, and wrinkles made out of—what else?—newborns' foreskins. Foreskins have long been treasured by cosmetic dermatologists because they are rich in fibroblasts, tiny cells that play a crucial role in healing wounds and generating collagen and connective tissue.
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.