Teemu Tomberg, University of Helsinki (IMAGE) University of Helsinki Caption Teemu Tomberg and measuring equipment for analysing optical and electric signals at the Department of Chemistry of the University of Helsinki. Credit Teemu Tomberg 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.