Surfing Particle Video (VIDEO) Simons Foundation This video is under embargo. Please login to access this video. To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Caption A ball falling through viscous silicone oil produces a wave in a nearby rubber sheet, as seen in this video. Fluid flowing along the wave pushes back on the ball, pushing it away from the sheet. The result could help scientists better understand how cells and microbes move through the human body. Credit B. Rallaband et al/<i>Nature Physics</i> 2018 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.