At Dartmouth, a Remote-Controlled Robot

October 11, 2005 | Source: New York Times

Dartmouth College researchers have built “the world’s smallest” untethered, controllable robot.

The robot is made from a carved piece of silicon that moves across a special surface that contains an embedded electrical grid. The robots motions are controlled by applying a voltage to the grid.

Such robots might one day be used to inspect or fix chips or interact with individual cells. Robots of different shapes could snap together to build larger structures.