Google Doodle re-creates pi formula in delicious apple pie form


Pi Day was first celebrated by physicist Larry Shaw at the Exploratorium in San Francisco nearly 30 years ago and incidentally in 2009, the United States House of Representatives voted in favour of designating 3/14 as Pi Day.

Today, March 14, is no typical Wednesday - it's Pi Day - and Google is celebrating the occasion with a special Doodle and pie recipe, courtesy of one of the world's most renowned pastry chefs.

It is believed that physicist Larry Shaw was the first to celebrate the day at the Exploratorium in San Francisco with his peers and staff nearly 30 years ago.

Pi is the ratio between a circle's circumference and its diameter. Also the surface area and volume of a sphere make use of the value of pi in their formulas. The result comes out to be 3.14 which can extend to quite a few decimal places as mathematicians say that the divisibility continues to trillions.

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Historically, the first Pi Day was held at a San Francisco Science Museum in 1988 when the physicist looked at the calendar and chose to pay homage to the mathematical entity. Therefore, it is an irrational number which is less than infinity.

Pi, denoted by the Greek letter "π", has been part of human knowledge for millennia, but it wasn't until 1988 that physicist Larry Shaw organized what is now recognized as the first "Pi Day" celebration at the San Francisco Exploratorium science museum. Google has listed all the ingredients, along with a behind-the-scenes of today's doodle. The challenge is in its fifth year, and features mathematical problems that can be solved using Pi.

Pi is a fundamental element of many mathematical fields, but most significantly Geometry.