Phenomena

Leaping Shampoo

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The Kaye effect is a neat phenomenon associated with falling shear-thinning non-Newtonian fluids like shampoo or hand soap.  As the falling liquid piles up after hitting a solid surface, it ejects streams of fluid upwards.  The effect usually only lasts for a few hundred milliseconds, but it is possible to see it at home without a high-speed camera if you pay close attention.  More detailed physics of the effect are discussed in this previously featured video.

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