The crazy folks at MIT have come up with a bunch of micro LED-equipped helicopter-robots which are capable of hovering autonomously in the sky, helping create a huge piece of floating 3D artwork. The program used to control this swarm is known as Flyfire, where it can synchronize up to hundreds of small helicopter robots theoretically, although currently only a handful of Flyfire robots are able to stay aloft at any one time. Guess it will take some more time before the technology is perfected, and we would probably see this being used in advertising circles.
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