Frames from 10-Hour Time-Lapse (IMAGE) University of Pittsburgh Caption Frames from a 10 hour long time-lapse sequence with model prediction (red line) and explant spreading (dotted line). 'Good' models predict not only the extent of the movement but also the amount of mechanical strain as the tissue spreads. The images in the lower row report the error between predicted and actual strain (gradient blue) at the time-points above. Credit MechMorpho Lab/University of Pittsburgh 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.