A chain of HEXEL modules (IMAGE) Max Planck Institute for Intelligent Systems Caption A chain of HEXEL modules with Ellen Rumley left and Zach Yoder right. Credit MPI-IS / Wolfram Scheible Usage Restrictions none 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.