No Motor, No Battery (IMAGE) California Institute of Technology Caption An artist's rendering of the new design for a robot that uses material deformation to propel itself through water. Credit Tian Chen and Osama R. Bilal/Caltech Usage Restrictions For use in news stories only 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.