Physics of Free-Fall (VIDEO) University of Chicago 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 In this high-speed, high-resolution video, freely falling granular streams behave similarly to water flowing from a faucet. These granular streams behave like dense, cold fluids with ultra-low surface tension (cohesion between individual molecules). "These experimental results open up new territory for which there currently is no theoretical framework," John Royer and his co-authors at the University of Chicago report in the journal Nature. Credit John Royer Usage Restrictions News organizations may use this video in reports describing the research of John Royer, Heinrich Jaeger and their colleagues. 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.