Anharmonicity in Thermal Insulators (IMAGE) Fritz Haber Institute of the Max Planck Society Caption Temporary formation of a defect pair in copper iodide. Although these defects only survive for a couple of picoseconds, i.e., for a trillionth of a second, they substantially influence macroscopic heat transport processes. Credit © Florian Knoop, NOMAD Laboratory Usage Restrictions © Florian Knoop, NOMAD Laboratory License Original 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.