Flexible device (IMAGE) University of Washington Caption University of Washington researchers have created the first-of-its kind flexible, wearable thermoelectric device that converts body heat to electricity. This device is soft and stretchable, yet sturdy and efficient — properties that can be challenging to combine. Credit Han et al./Advanced Energy Materials Usage Restrictions For reuse with appropriate credit 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.