Thursday, August 21, 2014

1,000 Bot Robopocalyptic Flash Mob

The first thousand-robot flash mob has assembled at Harvard University.

"Form a sea star shape," directs a computer scientist, sending the command to 1,024 little bots simultaneously via an infrared light. The robots begin to blink at one another and then gradually arrange themselves into a five-pointed star. "Now form the letter K."

The 'K' stands for Kilobots, the name given to these extremely simple robots, each just a few centimeters across, standing on three pin-like legs. Instead of one highly-complex robot, a "kilo" of robots collaborate, providing a simple platform for the enactment of complex behaviors.

Just as trillions of individual cells can assemble into an intelligent organism, or a thousand starlings can form a great flowing murmuration across the sky, the Kilobots demonstrate how complexity can arise from very simple behaviors performed en masse (see video). To computer scientists, they also represent a significant milestone in the development of collective artificial intelligence (AI).

This self-organizing swarm was created in the lab of Radhika Nagpal, Fred Kavli Professor of Computer Science at the Harvard School of Engineering and Applied Sciences (SEAS) and a Core Faculty Member at the Wyss Institute for Biologically Inspired Engineering at Harvard University. The advance is described in the August 15 issue of Science.

"The beauty of biological systems is that they are elegantly simple—and yet, in large numbers, accomplish the seemingly impossible," says Nagpal. "At some level you no longer even see the individuals; you just see the collective as an entity to itself."

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