Symmetric Electron Diffraction Pattern (IMAGE) University of Tokyo Caption Symmetric electron diffraction pattern of the liquid-crystal azobenzene molecules. Credit © 2019 Kato et al. Usage Restrictions © 2019 Kato et al. 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.