Light Mill in Silica (IMAGE) DOE/Lawrence Berkeley National Laboratory Caption This STM image shows a gammadion gold light mill nanomotor embedded in a 300 nanometers thick square-shaped silica microdisk. The inset shows a magnified top view of the light mill. Credit Image courtesy of Zhang group 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.