Tau Day: Replace Pi, make music with Tau


(Screengrab YouTube)

A selection of mathematicians have engaged in an online battle to draw attention to π, what they consider a more perfect measurement of a circle’s constant. But other numeral-philes, such as Michael Hartl, are trying to persuade the math literati to pay more attention to τ.

Hartl, who says on his Web site that he has a doctorate in theoretical physics and creates Web development tutorials, launched Tau Day last year. In his Tau Manifesto, he wrote: “It should be obvious that π is not ‘wrong’ in the sense of being factually incorrect; the number π is perfectly well-defined, and it has all the properties normally ascribed to it by mathematicians. When we say that ‘π is wrong,’ we mean that π is a confusing and unnatural choice for the circle constant.”

Get it? Good. Now, listen to τ set to music, from “Pi Song” musician Michael Blake:

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