Happy Pi Day!

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Happy 24th Pi Day! Yes we actually set aside a day to celebrate the numerical constant that represents the ratio of a circle's circumference to its diameter, on a flat plane surface. Why today? Because while Pi has been calculated to one trillion digits past the decimal point, we all simply recognize it as 3.14, which also happens to be, today's date.

Started in 1988 by San Francisco's Exploratorium museum to celebrate the importance of mathematics in our everyday lives, the date happens to coincide with Albert Einstein's birthday.

And in case you are wondering, it is not just celebrated by math geeks, but also, foodies who use it as an excuse to bake and eat delectable Pi(es), artists who create Pi bracelets, musicians who dream up Pi music and even corporations, like America's Ford Motor company who got into the spirit by posing a total of 42 math equations on Reddit.com, one every 3.14 minute.

So why are we all so fascinated with this mathematical number? Apparently, because it is a mystery even to mathematicians who tried to crack Pi's code with the help of super computers. However, even after calculating it to the trillionth decimal place, they were unable to find a pattern or an end to it.

And, while Pi day is just twenty four years old, the number itself is almost 4,000 years old. The ancient Babylonians first calculated the area of a circle by taking 3 times the square of its radius, giving Pi the value of 3. They later got close to the real number with an approximation of 3.124. Egyptian mathematicians overestimated the value slightly, arriving at a number of 3.165 in 1650 BC. However, given that these ancient cultures came up with their approximations using simple measurement tools, the results were pretty impressive.

The first person to actually calculate Pi mathematically was one of ancient world's most brilliant mathematicians, Archimedes of Syracuse. However, he was smart enough to realize that his number was also an approximation and concluded that Pi could vary between 3 1/7 and 3 10/71. The fascination of calculating this elusive number accurately has continued since then and so far, no-one seems to have cracked the code!

Happy Pi Day! Be sure to let us know if you did anything special to celebrate this fun day.

Resources: latimes.com, now.msn.com,exploratorium.edu

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6 Comments
  • Hannahabout 14 years
    I wonder how long it took to make the Pi symbol out of dominoes. I learned that no one has found the last number of Pi because it is never ending. It would be cool to make something that big out of dominoes.
    • E.Mabout 14 years
      That picture on the top is so cute. Using pi to count dominoes is really different. I learned that you can use pi to count dominoes.
      • Sufyanabout 14 years
        I learned that pi has over a trillion digits! I found that amazing, but I also found the video "Happy Pi Day (3.14) Domino Spiral cool too. I can't believe she spent twelve hours doing that!
        • Isaacabout 14 years
          WOW!!!!!!!!!!!!!!!!! That is awesome i really wish i was able to do that.
          • Rayabout 14 years
            INSANE!!! That would be cool to do that but I think its a wast of time.
            • byrdieabout 14 years
              wow the video is cool, I wonder how long it took to do it

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