Magnetic Field (image) University of Vienna Share Print E-Mail Caption The position of the center of the vortex is proportional to the applied magnetic field and serves as a reproducible and precise measurement variable. Credit © Dieter Suess et al. Usage Restrictions The image may only be used with appropriate caption or credit. Share Print E-Mail 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.