Tracking of a Propagating Mechanical Wave (IMAGE) Tokyo Institute of Technology Caption Schematic structure and photograph of the fiber under test, and the measured temporal variation of the strain distribution. Credit Tokyo Institute of Technology 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.