Photograph 1 (IMAGE) National Research Council of Science & Technology Caption Principal Researcher Sung-Hyuk Song (right) and Head of the Advanced Robotics Research Center Dong Il Park (left) at KIMM’s Research Institute of AI Robotics, who developed the variable-stiffness morphing wheel inspired by surface tension. Credit orea Institute of Machinery and Materials (KIMM) Usage Restrictions The sources of photos and research results from KIMM must be specified. License Original 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.