A schematic diagram of shear flow. (IMAGE) American Institute of Physics Caption A schematic diagram of shear flow. Credit Zhike Xu, Chenyang Wang, Sen Xue, Feng He, Pengfei Hao, and Xiwen Zhang Usage Restrictions Journalists may use this image only with appropriate 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.