Schematic diagram of velocity increment (IMAGE) Beijing Zhongke Journal Publising Co. Ltd. Caption Fig. 1 Schematic diagram of velocity increment Credit Beijing Zhongke Journal Publishing Co. Ltd. Usage Restrictions Credit must be given to the creator. License CC BY 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.