Pi – a mathematical constant of 3.14 and to infinity (Here’s a link of Pi with a million decimals)

Pi – a ratio of a circle’s circumference to its diameter

Pi – a ratio used in many formulas in mathematics, science, and engineering

Pi – an irrational number than cannot be expressed exactly as a fraction

Pi – the 16th letter of the Greek alphabet

Pi – also known as Archimedes’ Constant

Pi – whose first calculation dates to about 1900 BC

Pi – its date to celebrate is March 14th

Pi – the number Lu Chao holds the Guiness World Record for spending 24 hours and 4 minutes to recite Pi to the 67,890 decimal space

Pi – the basis of cheers at Georgia Tech and MIT

Pi – Nobel Prize winning poet Wislawa Szymborska wrote this poem of the same title

Pi – The name of a Darren Aronofsky film (see trailer)

Pi – a pizzeria in St. Louis, Missouri; Pi-zzeria in Virginia Beach, VA; and District of Pi Pizzeria in DC

Pi – the subject of this comedy routine about different perspectives of Pi

Pilish is a writing style with lengths of consecutive words match the digits in Pi

Professor Frink proclaims (for a reason), *Pi is exactly three* in “Bye Bye Nerdie” episode in *The Simpsons* (season 12)

For the record, *Magnum PI* was not about Pi

Alternative musician Kate Bush has a song *Pi,* whose lyrics mainly consist of Bush singing the digits of Pi to music

The Carl Sagan novel *Contact* suggested that the creator of the universe placed a message within the value of Pi

In the “Wolf in the Fold” episode of the original *Star Trek*, Kirk and Spock developed to an alien attack by forcing the computer to compute pi to the last digit, thus the alien eventually abandoning the computer

In the movie, *Night at the Museum: Battle of the Smithsonian*, Pi is the answer to the combination that will allow the Tablet of Akh-man-Ra to open the gates to the underworld.

Pi plus Pi = 2 Pi = Tau (and if you like this post, see *The Hot Tau*, which remains one of my favorite posts)

The Great Pyramid of Giza has a perimeter-to-height ratio of 2 Pi

What would Pi sound like if the values were put to music?