http://news.poseidon-us.com/TGXgwx
Researchers have created the smallest walking robot yet. Its mission: to be tiny enough to interact with waves of visible light and still move independently, so that it can maneuver to specific locations — in a tissue sample, for instance — to take images and measure forces at the scale of some of the body’s smallest structures.
http://news.poseidon-us.com/TGXgwx
http://news.poseidon-us.com/TGXgwx