Figure 2 (IMAGE) Tohoku University Caption A flowchart of the digital replication process. An unknown disturbance is introduced to the water. For example, a person is randomly waving a plastic bunny underwater. Buoys are floated to measure the water flow. The movement of the buoys is used to replicate the original flow digitally. Credit Kinfung Chu et al. Usage Restrictions Reporters may use freely these materials in news coverage with appropriate credit information. 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.