Rotation (video) American Institute of Physics Share Print E-Mail Loading video... Caption This video shows rotation of bubble branches. Credit Shen, Hu, Chen and Fu Usage Restrictions This video may be used only with appropriate credit. Share Print E-Mail 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.