Set-up (IMAGE) Friedrich-Schiller-Universitaet Jena Caption PhD student Monika Monika at the set-up where the experiments were conducted. Credit Ira Winkler/University Jena Usage Restrictions none License Original 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.