Working together, tiny robots pull a car MAR 15 2016
A team of researchers at Stanford built a small army of tiny robots that pulled a car across a concrete floor.
With careful consideration to robot gait, we demonstrate a team of 6 super strong microTug microrobots weighing 100 grams pulling the author's unmodified 3900lb (1800kg) car on polished concrete.
As any good tug of war team knows, the trick was to ensure that the tiny bots all pulled together at the same time. (via ny times)