The University of Pennsylvania has built a new self-reconfigurable robot, which can, as the name suggests, assemble itself after it has been kicked apart. Of course it is not much more than three robots with a smart communication, orientation and interfacing system, but as the atomic units get smaller these compound robots might actually get useful for, say, building a liquid metal Terminator.

There is also a high-resolution version available at the youtube page of the video.

(Via NewScientist)

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