Robert Blomgran, Linköping University (IMAGE) Linköping University Caption Robert Blomgran, Senior Lecturer at Linköping University, Sweden Credit Thor Balkhed Usage Restrictions The image may only be used with appropriate caption and 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.