[Figure1] (IMAGE) National Research Council of Science & Technology Caption (Left) KERI Dr. Hyekyoung Choi and (Right) Dr. Min Ju Yun are demonstrating a stretchable and flexible thermoelectric generators using metamaterials. Credit Korea Electrotechnology Research Institute(KERI) Usage Restrictions The sources of photos and research results from KERI must be specified. License Original 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.