Robot (IMAGE) University of Washington Caption Tiny, four-sided cilia, pulsating structures that mimic the hairs that line the human windpipe, are arranged in rows along the underside of the robot. Credit John Suh, Stanford University Usage Restrictions With credit to John Suh, Stanford University. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.