Joakim Stenhammar, Lund University (IMAGE) Lund University Caption Researcher Joakim Stenhammar. Credit Joakim Stenhammar / Lund University Usage Restrictions Joakim Stenhammar / Lund University 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.