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Tau Day

June 28

Tau Day - June 28

Tau Day is a mathematical holiday. Even schoolchildren know a constant mathematical constant – the number π (pi), which expresses the ratio of the circumference to the diameter of a circle and is approximately 3.14. The number π has its own holiday, the date is associated with the value of pi – March 14 (3.14). But mathematics professor Robert Palais (University of Utah) thought there was a more precise way to express the relationship between a circle and its radius.

History

In 2001, Palais published the article “π is Wrong” in the mathematical journal The Mathematical Intelligencer. In it, he proposed instead of π to use a new constant – the circle constant 2π (6.28). In 2010, Pale’s idea was supported by Michael Hart, who received a bachelor’s degree in physics from Harvard and a Ph.D. from the University of California. He proposed designating the constant circle proposed by Pale with the letter tau, published the Tau Manifesto, and founded Tau Day. The date of the holiday is also, as in the case of π, associated with the value of the number tau and is celebrated on the 28th day of the sixth month of the year.

Interesting facts

Michael Hart’s The Tau Manifesto has been translated into 7 languages. Its author claims that Tau Day is celebrated today by “thousands of mathematical “nerds” around the world.

How to take part

Are you fond of mathematics and interesting discoveries in this area? You can celebrate Tau Day in many ways.

  1. Pi Day people usually eat pie. Tau supporters argue you can safely eat a cake twice as large on Tau Day – after all, the value of tau is twice that of pi! You can also celebrate the holiday with any food that resembles a circle. For example, a huge pizza!
  2. This is a great day to have math games and competitions with the kids, or discuss the latest math news with friends.
  3. Post information about this unusual holiday in your social networks. Let the holiday help people learn more about mathematics.

When is Tau Day celebrated in 2022?

Tau Day is observed on June 28 each year.

Observations

Weekday Month Day Year
Tuesday June 28 2022
Wednesday June 28 2023
Friday June 28 2024
Saturday June 28 2025

Details

Date:
June 28
Event Category:

Venue

United States

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