(IMAGE) Institute of Science and Technology Austria Caption Spatio-temporal pattern of turbulence in a fluid moving between two plates is pictured. At low speeds (top) turbulence is strictly confined to localized patches. At high speeds (bottom) on the other hand flows are turbulent throughout. In the paper we describe how turbulence is transformed from a local excitation into an expanding state that aggressively invades its surrounding. Credit © IST Austria, 2015 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.