Robot Skin Diagram (IMAGE) University of Washington Caption As the robot finger slides along a surface, serpentine channels filled with electrically conductive liquid metal and embedded in the rubber skin stretch on one side of the finger and compress on the other. This changes the amount of electricity that can flow through the channels, which can be measured and correlated with shear force and vibration. Credit Reprinted from <i>Sensors and Actuators A: Physical</i> 2017:264:289-297; Yin, J., Santos, V.J., and Posner, J.D. "Bioinspired flexible microfluidic shear force sensor skin," with permission from Elsevier. Usage Restrictions With credit 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.