Researchers design self-powered robots the size of human cells – TechCrunch
The latest robots out of MIT are small enough to float “indefinitely” in the air. Researchers accomplished the feat by attaching 2D electronics to colloids — tiny particles measuring around one-billionth to one-millionth of a meter. All told, the devices are roughly the size of a human egg cell. What’s more, the addition of photodiode…