- Happy 𝛑 Day -

You know, I have a day dedicated to me. Pi Day is celebrated by people all over the world on March 14 as the date resembles the first three digits of me i.e. 3.14. I am an unending number. The decimals in me can keep on going without any sequence of digits repeating. I’m also called as irrational number because no one can write down a simple fraction that equals me. I was first calculated by Archimedes of Syracuse (287–212 BC), one of the greatest mathematicians of the ancient world, while trying to find the area of a circle. Therefore, I was found almost 4 thousand years ago!

Now, let me tell you why a day is celebrated on my name. In 1988, a physicist and media specialist Larry Shaw connected the numbers in me 3.14 to the date 3/14 to bring the Exploratorium staff together and have some fun in San Francisco. From then onwards, people are celebrating Pi Day to have a mathematical holiday. In the year 2009, Pi Day became an official national holiday in the United States of America. On this day, all the educators and math lovers around the world conduct marches, indulge in Pi related activities and enjoy having a “Pie.”

It is very special day, not just because it is my day, but also because it is the birthday of a great scientist, Mr. Albert Einstein. So, let’s enjoy Pi Day together by engaging yourself in the following simple “DIY” experiment at home.

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DO IT YOURSELF

Cutting Pi!

**Objects required for Experiment:**

- A few circular objects
- A few strings
- A scissor

**Steps of the Experiment:**

- Take a string and carefully wrap it around the circumference of the circular object that you selected.
- Cut the string when the string length is equal to the circumference of the circular object.
- Now take the same string and measure the diameter of that circular object.
- Cut the string again when it is equal to the diameter.
- Cut as many diameter strings from the circumference string as you can and keep them aside.
- Repeat the steps with different sized circular objects. What do you notice?

**Answer to the experiment:**

Though the size of the circular objects selected by you differs every time, the number of diameter strings cut from the circumference string remains the same. It means that you could cut three diameter strings and a fraction of string equivalent to 1/7 part remains which in turn is equal to Pi. Therefore, you have cut a Pi.

**So children, I am sure you loved doing the experiment.**

**Learn Math in a Cool way!**

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