Erik Gustafsson, University of Gothenburg (IMAGE) University of Gothenburg Caption This is Erik Gustafsson with his measuring equipment. Credit University of Gothenburg Usage Restrictions The attached photograph is freely available for publication. 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.