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Physics of sperm vs. the sperm whale

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Video of the Week #113, October 11th, 2013:

From: Physics Week in Review: September 28, 2013 by Jennifer Ouellette at Cocktail Party Physics.

Source: TED-Ed

Physics meets biology in art in this animated video from TED-Ed, in which physicist Aatish Bhatia explains how the world of a sperm is so fundamentally different from the world of sperm whale. He describes a big idea from fluid mechanics called the Reynolds number, and explains why size matters a LOT for a spermy swimmer.





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