Nanotechnology Robot

This robot is really small. These are timid steps, in a whole new area of technology.

"It's tens of times smaller in length, and thousands of times smaller in mass than previous untethered microrobots that are controllable," said designer Bruce Donald of Dartmouth University. "When we say ‘controllable,' it means it's like a car; you can steer it anywhere on a flat surface, and drive it wherever you want to go. It doesn't drive on wheels, but crawls like a silicon inchworm, making tens of thousands of 10-nanometer steps every second. It turns by putting a silicon 'foot' out and pivoting like a motorcyclist skidding around a tight turn."