Six tiny microbots weighing 3.5 ounces pull a 3,900-pound car

Slow but steady does it.

John Markoff at the New York Times:

A group of researchers at the Biomimetics and Dexterous Manipulation Laboratory at Stanford University has been exploring the limits of friction in the design of tiny robots that have the ability to pull thousands of times their weight, wander like gecko lizards on vertical surfaces or mimic bats.

[Modeled After Ants, Teams of Tiny Robots Can Move 2-Ton Car / John Markoff / The New York Times]