Nano (IMAGE) University of Vienna Caption In 1940, Hendrik Kramers (left) predicted theoretically that in a double-well system (center bottom) transitions between the stable states happen most frequently at intermediate friction (upper right). The background shows a detail of the laser system used to confirm Kramers' prediction experimentally. Credit Copyrights: Jan Gieseler; Image of H. Kramers courtesy of AIP Emilio Segrè Visual Archives, Goudsmit Collection Usage Restrictions The image may only be used with appropriate caption or credit. 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.