Glass presentation (IMAGE) Friedrich-Schiller-Universitaet Jena Caption Dr Courtney Calahoo from the University of Jena presents organic glass (l.) and inorganic glass (r.) - two starting materials for the new composite glass. Credit Image: Jens Meyer/University of Jena 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.