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This computer simulation shows how a thick fluid behaves when falling on a moving conveyor belt. It also simulates the extremely complicated movement of hair and shows how a gooey fluid would behave when draped over objects, like syrup being poured on waffles.
Reporters may freely use this video. Credit format: Video courtesy of Columbia University, Université Paris VI, and University of Göttingen (2011).
Sophisticated simulations duplicate the complicated motions of thick fluids, elastic materials and even hair.