Marine Energy Team (IMAGE) University of Washington Caption Andy Stewart (left) and UW mechanical engineering graduate students with 3-D printed prototypes of different tidal turbine designs. Credit Mary Levin / UW Usage Restrictions With credit. 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.