Safe Glass Facades (IMAGE) Fraunhofer-Gesellschaft Caption Researchers use this apparatus to identify the stresses at which windows and glass facades crack and shatter. Credit © Fraunhofer EMI 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.