3-D Movie of Shear Stress Map (VIDEO) Optica This video is under embargo. Please login to access this video. Caption This is a 3-D movie showing shear stress on the developing heart of a quail embryo during one complete heart cycle. Red indicates areas of greater stress. Credit Biomedical Optics Express 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.