Researchers at Massachusetts Institute of Technology are developing the world's smallest chain robot, less than the size of a dime, designed to link up to others like them and shape-shift into a range of micro-tools.
Put together, four of these machines, with a specialized engine and covered with rings and fittings, look like a tiny, brass mechanical inchworm, but with more versatility and usefulness. "It's a step toward the goal of programmable matter," said Neil Gershenfeld, head of MIT's Center for Bits and Atoms where the micro-bots were created. "The goal is not to just to produce a shape. This is something that can change shape."
Programmable matter is something that can change form based on external commands. Because of this micro-robot's size, a long string of them could be, in theory, programmed to turn into an infinite number of forms. For example, a chain of them could form a wrench. When that tool is no longer needed, the string of robots could be reprogrammed into a
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