Tau Day

From the chatter within my social media networks, geoscientists like switching to the physically-intuitive tau (and thus celebrating Tau Day), while physicists are firmly in favour of sticking with pi. I’m happy to embrace both (can I ever have too many mathematically-driven celebrations on my calendar?) and link to other people making arguments:

The Tau Manifesto.
BBC news article on Tau Day.
Doodling in Math Class on baking pi. (video)
Musical representation of tau. (video)

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