The Tank and Spheres (IMAGE) American Physical Society Caption These are the tank and spheres that researchers at Utah State University use to study the impact forces of water entry. Credit Tadd Truscott and Rafsan Rabbi Usage Restrictions Reporters may use this image only with appropriate credit. 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.