June 28 – Celebrate Tau Day!

As you know, many people celebrate PI Day by having Pi pie. (See my post on Pi Day, here.) But there is a rival movement afoot to replace Pi Day with Tau Day (and indeed, to replace Pi with Tau as a standard).

Pi, of course, is the ratio of a circle’s circumference to its diameter (3.14159265…), currently celebrated on March 14. Tau, or τ, is the ratio of a circle’s circumference to its radius. Thus it is twice the amount of π (6.28318530…). (Hence the celebration on June 28.)


Mathematicians are divided on the issue, but to me it makes infinite [sic] sense to celebrate Tau Day, because it implies TWO pieces of pie. TWO pies. This sounds like a good thing.

Another way to look at Pi Day

Another way to look at Pi Day

Two Times PI:

Two of the 2012 winners from the yearly Pi Day contest sponsored by the Serious Eats Blog:



Happy 6.28318530717958647692… Day!


About rhapsodyinbooks

We're into reading, politics, and intellectual exchanges.
This entry was posted in Holiday and tagged . Bookmark the permalink.

10 Responses to June 28 – Celebrate Tau Day!

  1. Sandy says:

    Twice pie (pi) sounds like a great idea! Except that it might give me twice the chin or twice the belly roll…

  2. Beth F says:

    I’ll take two pis please.

  3. I like Pi Day better…because of the pie. This seems like one of those fake holidays..not like Pi Day!

  4. BermudaOnion says:

    Too bad I don’t like pie.

  5. Charlie says:

    Love it, though I couldn’t imagine pi not being around in future!

  6. Stefanie says:

    Happy Tau day! Two pieces of pie are better than one. But I will always be partial to pi because it has the cooler symbol 🙂

  7. Word. Hell with you, pi! We’re moving on to new things!

    (I have no dog in this fight really. But I like REBELLION.)

  8. Rita K says:

    I love pie, but this will give me an excuse to make two.

  9. bookingmama says:

    I agree that if I can eat double the pie, then it’s a celebration!

  10. You always post such fun and informative pieces!!

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )


Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.