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Researchers from Israel have developed the mini robot that is expected to be widely used in the medical field. Measuring merely 1mm, the robot could move inside vessels (at a speed of 9mm per second) to deal with the clogging artery and inject some drug. And all its actions are controlled by the extracorporeal magnetic field, which means a real-time manipulation and a safety operation. Until now, scientists are still concentrating efforts on advancing the maneuverability of the robot, equipping it with a camera, for example.