Time we thought about how we stir things

Physicists capture microscopic origins of thinning and thickening fluids: "ScienceDaily (Sep. 1, 2011) — In things thick and thin: Cornell physicists explain how fluids -- such as paint or paste -- behave by observing how micron-sized suspended particles dance in real time. Using high-speed microscopy, the scientists unveil how these particles are responding to fluid flows from shear -- a specific way of stirring."

This stirs me up.

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