Chemo-mechanical oscillations (from overhead) (IMAGE) University of Pittsburgh Caption Chemo-mechanical oscillations of a colony that contains red, green and blue catalytic beads located on the bottom of the fluid-filled container. Beads are dragged by the fluid flow (arrows) and oscillations of their positions are accompanied by the oscillatory production of chemical shown in red. Credit Oleg Shklyaev Usage Restrictions NA 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.