Assay (IMAGE) Scripps Research Institute Caption To test how cells respond to sheer stress, the researchers designed a machine that uses turbulent movement of liquid to stand in for blood flow in blood vessels. Credit Ardem Patapoutian and Jie Xu Usage Restrictions Credit Ardem Patapoutian and Jie Xu 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.