Tiny-fingered researchers at the University of Michigan have created this computer, the world's first complete millimeter-scale computing system. It is a prototype designed to be implanted in a human eye, to monitor internal pressure there for signs of glaucoma.
The machine includes a teeny battery, a consolidated radio and antenna, a pressure sensor, memory, and a rather diminutive processor designed to consume extremely little power.
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.