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Thin threads of fluids show how conveyor belt speeds control fluid pattern behavior in both experiments and models. A thin thread of viscous fluid (translucent threads at left) is poured onto a moving belt, creating a dazzling array of intricate patterns. Simulations (gold threads at right) reproduce this rich and complex behavior, confirming the accuracy of a theoretical model developed to describe the phenomenon.
Reporters may freely use this image. Credit format: Image courtesy of Columbia University (2011).