# Blog

Tutorials, news, snippets, and other various musings about the electrical engineering industry.

## National Pi Day

Every year since 1988, mathematicians around the world celebrate Pi Day on March 14th. Pi is the number you get when you divide the circumference of a circle by its diameter, approximately 3.14159. Pi connects to almost all of mathematics, science, and engineering—we wouldn’t have smartphones or computers if it wasn’t for pi. It has been a constant equation that has been around for 4000 years.

I remember first learning about its origins in Middle school when on this day every year, my teacher would bring in a pie for us to eat. At that time, I didn’t really understand what was so great about Pi. Once I became a little older, I think I started to understand its significance. Pi is the first time you learn about infinity, teaching you that there are some things that never end. It is something that is taught to us in early schooling and connects us all. It is in complex equations and is a part of everyday life.

So if you want to be a part of the celebration of the equation connecting all things math, science, and engineering, here are 4 ways you can appreciate pie on Pi Day:

1) Celebrate with one of our favorite types of Pi: Raspberry Pi. A Raspberry Pi is a low cost, credit card sized computer. It is able to do everything a desktop computer can do. The most recent addition to the Raspberry Pi family is the Raspberry Pi 3 Model B. It has replaced the previous model and has a lot of new capabilities such as A 1.2 GHz 64-bit quad core ARMv8 CPU, 802.11 Wireless LAN and Bluetooth 4.1. For more information on the newest Raspberry Pi click here.

2) Wear fun t-shirts such as this one:

3) Spread the Pi love by telling a fun pi-themed joke. Below is one of our favorites, but you can find more here:

“A **mathematician**, a **physicist**, and an **engineer** are all given identicalrubber balls and told to find the volume. They are given anything theywant to measure it, and have all the time they need. **The mathematician** pulls out a measuring tape and records the circumference. He then divides by two times pi to get the radius, cubes that, multiplies by pi again, and then multiplies by four-thirds and thereby calculates the volume.**The physicist** gets a bucket of water, places 1.00000 gallons of water in the bucket, drops in the ball, and measures the displacement to six significant figures. **And the engineer?** He writes down the serial number of the ball, and looks it up.”

4) And last but not least we hope you enjoy eating an actual pie on Pi Day (our favorite is apple).