Matthias Nienhaus, Saarland University (IMAGE) Saarland University Caption Matthias Nienhaus and his research group are developing a technology that not only allows wheels to 'know' when and how to rotate, but also enables them to work together in interactive teams. Credit Oliver Dietze 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.