Shell Structure Bending in Light (IMAGE) University of Pittsburgh Caption Researchers at Pitt and CMU found that by forming light-reactive polymer into a curved shape, as shown here, the bending action happened much more quickly and generated more torque. Credit Mahnoush Babaei Usage Restrictions None 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.