Neutrons -- Beating the Clock (IMAGE) DOE/Oak Ridge National Laboratory Caption A California Institute of Technology-led experiment used neutron scattering at ORNL to resolve a decades-old debate whether the source of entropy in metallic glass materials was caused by the atoms' vibrations or configuration. Credit Image by Marios Demetriou, California Institute of Technology. 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.