Pi is a lie. Happy Half Tau Day

Pi is a lie. The concept of Pi (π) is confusing and makes trigonometry more complex than it needs to be. Math can be made easy to learn and understand. Michael Hartl proposes that we reclaim that simplicity through the use of Tau (τ).

Enjoy this video made by a Math student who understands the logic of Tau and the need to increase its popular use.

URL: http://www.youtube.com/watch?v=jG7vhMMXagQ

Intrigued? Try tasting this bit of Tau (excerpt from "The Tau Manifesto"):

The Tau Manifesto is dedicated to the proposition that the proper response to “π is wrong” is “No, really.” And the true circle constant deserves a proper name. As you may have guessed by now, The Tau Manifesto proposes that this name should be the Greek letter τ (tau):

τ ≡ C/r = 6.283185307179586…

Throughout the rest of this manifesto, we will see that the number τ is the correct choice, and we will show through usage (Section 2 and Section 3) and by direct argumentation (Section 4) that the letter τ is a natural choice as well.

Happy Half Tau Day! The complete celebration will come on the 28th of June.