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Presented by Dr. Mark Ediger Part of the 2019 MRSEC Summer Seminar Series The thermodynamics of glasses were reviewed and how the state of a glass is influenced by different methods of preparation was briefly described. A qualitative description of glasses within the framework of the potential energy landscape was presented, with an emphasis on the configurational entropy. Relaxation processes in glasses were also discussed, including physical aging, sub-Tg relaxations, and quantum tunneling two-level systems. Along the way, the audience was led to understand what is wrong with these statements: 1) All glasses with a given composition have the same properties. 2) Nothing can move in a glass. 3) There is nothing interesting about glasses. LINK TO SEMINAR MENTIONED AT END OF VIDEO • M Ediger Atomic and Molecular Glasses I J... UW MRSEC ON SOCIAL Follow UW MRSEC on Twitter: / uwmrsec Like UW MRSEC on Facebook: / uwmrsec The NSF-sponsored Wisconsin Materials Research Science and Engineering Center brings together teams of interdisciplinary researchers to address grand challenges in materials science. https://mrsec.wisc.edu/ The Wisconsin MRSEC has free, engaging educational activities for a variety of audiences. https://education.mrsec.wisc.edu/