Pi Day: Google Doodle Celebrates 30th Anniversary of Mathematical Constant

Google's new doodle marks 30th anniversary of Pi Day

Google's new doodle marks 30th anniversary of Pi Day

Interestingly, Albert Einstein's birth anniversary falls on March 14, which is also celebrated at Princeton by organising an annual Einstein look-alike contest. For those who are wondering what it is, it's Pi Day. It is the ratio between a circle's circumference to it's diameter. Wondering how? Draw a circle with a protractor and then measure its diameter or radius with a ruler. A Babylonian tablet from between 1900 B.C. and 1680 B.C. calculates pi as 3.125, and the Rhind Mathematical Papyrus of 1650 B.C., a famous Egyptian mathematical document, lists a value of 3.1605. The rise of computing technology has led to an arms race of sorts to calculate ever more digits of pi: the current record was set past year by Christian physicist Peter Trueb, calculated pi to 22.4 trillion digits - 22,459,157,718,361, to be exact - outpacing the previous record set in 2013 by 9 million digits.

Pi has become a true cultural symbol, a metaphor for the mysteries of mathematics, which has inspired its own literary genre - Pilish. The doodle for Wednesday is in honor of Pi Day and features all the delicious ingredients of an apple-caramel pie, created by world-famous pastry chef and cronut creator Dominique Ansel.

That mind-boggling feat of brain endurance would go to physicist Peter Trueb who in 2016 calculated Pi out to 22,459,157,718,361 digits.

Archimedes has been the first to discover the first two decimals of the Pi number. It was a grueling process that took Trueb four months. Eating pies is one of the ways mathematics enthusiasts celebrate Pi Day.

Well, I suppose you could try to beat Trueb's world-record, but that would be an exercise in futility for most of us.

A number of places both local and national are rolling out special deals for the holiday.

If you're looking for actual pie and not bottom barrel pizza, Whole Foods is moving pies today by taking $3.14 off the regular price of bakery pies.

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