The Science of Moving Dirt (IMAGE) Iowa State University Caption Iowa State University's Geotechnical Mobile Lab shows up on construction sites to help researchers develop technologies that measure the performance of the earth materials used for roadbeds and foundations. Photo courtesy of David White. Credit Photo courtesy of David White/Iowa State University 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.