Vortex Ring (IMAGE) Florida State University Caption A simulated vortex ring structure in superfluid helium. Credit This image may be used with appropriate caption and credit. Usage Restrictions Courtesy of Wei Guo License Original 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.