Today is National Pi Day! (not that pie)

Pie lovers rejoice, today is National Pi Day! But it may not be the apple pie that you're expecting.

Woman pulls apple pie out from oven for National Pi Day

Pi Day is a fun holiday celebrated every year on March 14th. This holiday is all about a special number called pi, which is used in math to help us figure out the size and shape of circles. In this blog post, we’ll explore what pi is, how Pi Day started, and some fun ways to celebrate!

A girl sits in front of a laptop computer in front of a black board filled with mathematical equations

First, let's talk about pi. Pi is a number that starts with 3.14, but it goes on forever without repeating. It's a very special number because it's used to figure out the circumference of a circle. The circumference is the distance around the edge of the circle, and pi helps us figure that out. Pi is also used to find the area of a circle. It might seem like a small and simple number, but it's actually very important in math and science.

An American NASA space shuttle launching on its rocket

The symbol for pi (π) was first used in the 18th century by mathematician William Jones. The value of pi is used in many areas of science and engineering, including physics, astronomy, and architecture. NASA has used the value of pi to calculate the trajectories of spacecraft and planetary orbits.

A close-up shot of a computer motherboard, focusing on integrated USB input slots

The value of pi has been calculated using a variety of methods throughout history, including by using polygons, series, and calculus. Pi has been studied for thousands of years, with evidence of early approximations of pi found in ancient Egyptian and Babylonian texts.

A picture of Egyptian hieroglyphics

Now, let's talk about how Pi Day started. Pi Day was first celebrated in 1988 by a man named Larry Shaw. He was a scientist who loved math and wanted to celebrate pi with his friends and coworkers. They had a party where they ate pie and talked about the number pi. Since then, Pi Day has become more and more popular, and people all over the world celebrate it every year.

A Lego figurine fashioned as a construction worker sits on top of a Raspberry Pi computing device

So, how can you celebrate Pi Day? Here are a few ideas:

  • Bake a pie! You can make any kind of pie you like, but apple pie is a classic.
  • Memorize pi! See how many digits of pi you can remember. You might be surprised how many you can learn!
  • Have a pi recitation contest. Take turns reciting as many digits of pi as you can remember. The person who can recite the most wins!
  • Play pi-themed games. You can find pi-themed puzzles, games, and activities online.
  • Learn about circles. You can draw circles, measure the circumference and diameter, and practice using pi to find the circumference and area.

Pi Day is a fun holiday that celebrates a special number that helps us understand circles. It's a great way to have fun while learning about math and science. So, this March 14th, don't forget to celebrate Pi Day!

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