Penguin-Inspired Propulsor (2 of 2) (VIDEO) American Institute of Physics 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 This actuated spherical joint mimics a penguin shoulder while enabling compactness, rigidity and high motion frequencies, as well as unlimited rotation (propeller-like, not shown on the video) about a single shaft. Credit hepia/B.Sudki-M.Lauria-F.Noca 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.