Olle Häggström (IMAGE) Chalmers University of Technology Caption Olle Häggström, is with Chalmers University of Technology, Sweden. Credit Anna-Lena Lundqvist 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.