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- Founded by physicist Larry Shaw, the "Prince of Pi"
- First celebrated in 1988
- Originated at the San Francisco Exploratorium
- An international holiday
- MIT posts admissions on Pi Day
- Pie is the traditional food of the day
- Became a nationally recognized holiday in 2009
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Pi Day is a holiday that celebrates the mathematical constant, Pi (∏). It is celebrated on March 14 because the first three digits of Pi are 3.14 -- although true enthusiasts mark the actual time of the holiday as 1:59 p.m., also known as the Pi Minute, or 1:59:26 p.m., the Pi Second. (While it is possible to estimate with great precision the moment at which the holiday occurs, it is impossible exactly to define.) Pi Jokes are traditionally told on Pi Day. March 14 is also, coincidentally, the birthday of Albert Einstein. On March 11, 2009, the House of Representatives passed a resolution making March 14th officially National Pi Day.CNET: National Pi Day?... (March 11, 2009)
History of Pi
The earliest approximations of pi appear from the Babylonians over 4000 years ago. According to an artifact dating back to approximately 1700 B.C., they measured it as 3.125. Another artifact, an Egyptian papyrus document, showed that the Egyptians used 3.1605 as a constant to calculate the area of circles as far back at 1650 B.C. The ancient mathematician Archimedes calculated the value of pi by using the Pythagorean Theorem. He determined that pi was between 3 1/7 and 3 10/71.ExplOratorium: A Brief History of πDespite this longstanding knowledge of the constant, a universal symbol was not used to describe it until the 1700s. William Jones was the first to appropriate the use of the symbol "π" in 1706. Leonhard Euler began using the symbol in 1737 after which it became popularized.ExplOratorium: A Brief History of π
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Pi Day Questions
How are you going to celebrate National Pi Day? 7 AnswersI teach middle school math, and I celebrated Pi Day early with my students. We made Pi Day cards and sang a Pi Day song. Here's the card I made. http://twitpic.... read more
How can PI be derived without a computer? 3 AnswersPi is the ratio of the Circumference of the circle to the Diameter because C=Pi * Diameter You can approximate the circumference by adding up the sides of a pol... read more
What is the best time of the day to exercise? 8 AnswersResearch on lung function, body rhythms, temperature, and hormone levels says one thing - to exercise around 6 pm. But i think Time of day doesn't matter intens... read more
Why no white after Labor Day? 3 Answers"As with many customs and etiquette dictums, it's difficult to pin down the reason behind the prohibition against white after Labor Day. We searched on variatio... read more
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@BrandiAshanti A Nupe never tells...PHI NU PI till the day I die. I guess thats why name is Re-N-Karnate-Her.
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Bigg Boss Season 3 22nd November 22 2009 Part 10 Day 49 Bigg Boss watch Full Parts On www.BiggBoss.co.in http://pi.pe/rm6ylb #Bigg #Boss #3
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Sat here on a beautiful sunny day...God I can't Lie...Its pi**ing it down, its dark, its miserable & I'm sat here readin the Sundays..still
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Bigg Boss Season 3 22nd November 22 2009 Part 8 Day 49 Bigg Boss watch Full Parts On www.BiggBoss.co.in http://pi.pe/1azxew #Bigg #Boss #3
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Bigg Boss Season 3 22nd November 22 2009 Part 8 Day 49 Bigg Boss watch Full Parts On www.BiggBoss.co.in http://pi.pe/ts50n9 #Bigg #Boss #3
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