Happy Pi Day!


It’s March 14 and I’m sure you know what that means. It’s Pi Day!

If you weren’t aware of this wonderful holiday, you’re really missing out. Today, 3/14, celebrates the number π. This wonderful number is an important one to know in math. It’s equal to the ratio of a circle’s circumference to its diameter, which always equals 3.141592…

One of the fun parts is that π is an irrational number, meaning that it has an infinite number of digits after the decimal place because it’s not an even fraction .Usually in practice we just abbreviate it to 3.14 or so. But yesterday π was taken to new heights in Austin.


pi-in-the-sky-austin-sxsw-2014-pi-day

Yesterday, 5 planes from a Florida skywriting company took to the skies to make sure everyone at SXSW knew exactly what today is. Flying in tandem, they circled overhead, writing hundreds of π — one at a time — in puffs of smoke. It was quite a sight to see. Even their start time, 6:28, had significance. 6.28 is two times 3.14.

piinthesky-austin-texas-sxsw-2014

After nearly 90 minutes, they ended with a hashtag, #piinthesky. These photos are circulating on news outlets (they’re better than the ones I took), but this was visible even from my office in North Austin.

I hope you have plans to celebrate Pi Day today and revel in the magic of math, preferably with some pie!

Advertisements

4 thoughts on “Happy Pi Day!

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s