TESET (IMAGE) Norwegian University of Science and Technology Caption TESET, before and after water treatment. The water has changed the structure in the material. Credit Photo: Kenneth P. Mineart, NCSU Usage Restrictions with proper credit and only in articles associated with this research 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.