Kosta Sierros WVU (IMAGE) West Virginia University Caption Kostas Sierros, associate professor in the WVU Department of Mechanical and Aerospace Engineering Credit WVU Photo/Paige Nesbit Usage Restrictions None 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.