Did You Know - Page 05: What is Pi? Why is it celebrated?
* Did You Know Facts
• Maths enthusiasts, assemble! a little bit of learning and a whole lot of fun awaits on March 14, which is celebrated as Pi Day.
What is pi?
When you take the circumference of any circle and divide it by its diameter, you always get a value approximately equal to 3.14. Being an irrational number, the digits after the decimal point go on forever, starting with 3.1415926535... This unique number is called ‘pi’, written with the Greek letter 𝝅. Since this number is always the same no matter what the size of the circle, it is one of the most famous constants in Maths. Pi is immensely useful in many areas including Maths, Science, Astronomy, Architecture, Construction, and Engineering.
Why March 14?
March 14 was chosen as Pi Day because it can be written as 3-14, which looks like 3.14. Physicist Larry Shaw organised the first Pi Day celebrations at San Francisco's Exploratorium Science Museum in 1988.
Several fun traditions are followed to celebrate the day, and many of them involve pies. ‘Pie’ sounds like ‘pi’, so no surprises there! Pie-eating contests, pie-bake sales, discounts on pies, pie potluck parties, and so on... there's no end to the possibilities, just like there's no end to pi itself.
Did you know?
• Pi is also called ‘Archimedes’ constant’ and ‘Ludolph’s number’.
• In 2015, 24-year-old student Rajveer Meena set a world record by memorising
and reciting 70,000 decimal places of Pi.
• Albert Einstein was born on Pi Day in 1879, while Stephen Hawking died on the same day in 2018.
• The Massachusetts Institute of Technology (MIT) releases its undergraduate
admissions decisions on Pi Day every year.
• If you enjoy celebrating Pi Day, you might like other days such as Pi Approximation Day (July 22), Mole Day (October 23), Fibonacci Day (November 23), Square Root Day (next occurring on May 5, 2025), and Pythagorean Theorem Day (next occurring on July 24, 2025).
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