Image 2 (IMAGE) Nanyang Technological University Caption Professor Yang Yaowen demonstrating how the device can generate and store electricity when exposed to a breeze generated by a wind tunnel. Credit NTU Singapore Usage Restrictions No restrictions. License Public Domain 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.