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Down with Pi! The Math Nerds Behind the Tau Movement

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Nico Canali / Flickr

Happy Tau Day, everyone! Every June 28, a rogue fleet of math nerds makes its case for the abolition of arguably the most important irrational number in the world: pi. These men and women of the "tau" are adamant that pi, the ratio of circumference to diameter of a circle, should be replaced by tau, the circumference of a circle divided by the radius.

From The Atlantic
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