Experiment (IMAGE) Florida State University Caption The custom-made rotating Holmholtz coil used in this study to activate the helical swimmer. This apparatus is rotating with a constant angular velocity (Ω). The green shaded zones show different planes for the analysis around the swimmer. Credit Courtesy of Hadi Mohammadigoushki Usage Restrictions This image may be used with appropriate caption and credit. 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.