Ingestible origami robot

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Researchers at MIT, the University of Sheffield, and the Tokyo Institute of Technology have demonstrated a tiny origami robot that can unfold itself from a swallowed capsule and, steered by external magnetic fields, crawl across the stomach wall to remove a swallowed button battery or patch a wound. (Learn more about the robot: This research was supported by the National Science Foundation grants IIS-1226883 and CCF-1138967. Video: Melanie Gonick/MIT Music sampled from, "Ray Ives" by Tony Higgins (