London Telegraph 
April 2, 2013
Researchers from the Sheffield Centre for Robotics programmed a group of 40 small robots which could organise themselves into a group and work together to solve simple tasks.
Swarming robots could eventually be shrunk to a microscopic size for use in medical procedures, because they require no memory and could function without a processor, experts said.
They could also be built to larger sizes and used in military or search-and-rescue operations which are too dangerous or inaccessible for people to venture into, or used in manufacturing to improve safety in industry.
The robots, which will be demonstrated at the Gadget Show Live in Birmingham this week, use a simple form of artificial intelligence to perform basic functions.