Electrically Controlled Soft Tubular Actuators -- 1 (IMAGE) University of California - San Diego Caption Depending on which heating wires are electrically activated (red), the soft tubular actuator can bend in six different directions (outer images) and contract in length (center image). Credit Qiguang He Usage Restrictions Please credit: Qiguang He 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.