Step-By-Step Process (VIDEO) American Physical Society This video is under embargo. Please login to access this video. Caption This video clip developed by Utah State University researchers captures the step-by-step process of how the impact force of water entry can be reduced via a sphere inside a cavity, on a cavity or on a Worthington jet. Credit Tadd Truscott, Rafsan Rabbi and Nathan Speir Usage Restrictions Reporters may use this clip 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.