Nonlinear Elasticity (IMAGE) Cornell University Caption The above image shows the measurement of single-cell traction force using gel deformation and a fibrous nonlinear elastic model. Each arrow represents the discrete displacement of a fluorescent bead bonded to a collagen fiber. Credit Matthew Hall/Provided 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.