One step closer to self-replicating objects

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We’ve already seen 3-D printers that create previously designed objects, but what about smart grains of sand that self-replicate things? It’s not science fiction, according to MIT. The Distributed Robotics Laboratory (DRL) at MIT’s Computer Science and Artificial Intelligence Laboratory is demonstrating intelligent, one centimeter cubes that can assume any shape through magnetism principles and algorithms.
Here’s how the small blocks accomplish this, according to the MIT blog post:  more...