Digger Finger (IMAGE) Massachusetts Institute of Technology Caption MIT researchers developed a "Digger Finger" robot that digs through granular material, like sand and gravel, and senses the shapes of buried objects. Credit Image courtesy of Radhen Patel, Edward Adelson, et. al. Usage Restrictions Images are made available to non-commercial entities, press and the general public under a Creative Commons Attribution Non-Commercial No Derivatives license. You may not alter the images provided, other than to crop them to size. A credit line must be used when reproducing images 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.