Ingestible origami robot

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 IIS1226883 and CCF1138967. Video: Melanie Gonick, MIT Music sampled from, Ra