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The Tau Manifesto

Here is a delightful article on why

\displaystyle \tau = \frac{C}{r} = \frac{\text{Circumference}}{\text{radius}} = 6.28318...

would make a better fundamental constant than

\displaystyle \pi = \frac{C}{d} = \frac{\text{Circumference}}{\text{diameter}} = 3.14159....

I’ve wondered about this before, and I have to say, I agree with the author!

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