Imagine a robot just 2.5 times thicker than your hair, goes down into your blood stream, goes to the point of operation, photographs the area and back!!!! Researchers at Monash University, Australia have developed a small robot with micro-motor ,tiny camera and onboard sensor to precisely do that work. To achieve its swimming motion, the vibrating motor is attached to a spiral tail that spins at up to 1295 rpm and acts as a kind of propeller to drive the device forward in a motion similar to that used by bacterial flagella
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