A few years ago--by accident, really--Carl Zimmer became the de facto curator of science-based body art. The author of The Loom blog over at DISCOVER as well as numerous books, Zimmer asked his readers about their tattoos, and whether any of them had inked themselves up in science-inspired motifs. The response was greater than he imagined.
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.