Engineers at Ohio State University have created the first stand-alone, stationary lens that can create microscopic 3-D images. Up until now, 3-D microscopes needed multiple lenses or movable cameras to capture all sides of an object. With this lens, viewers can capture nine different angles of a microscopic object at once.
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.