It's Pi day!

I love math. I love that Pi*R’squared equals the area of a circle (pie is circular). I love that I still know that formula and that Pi*D equals the circumference of said pie, or any other circular object.

It’s also #SXSW—colloquially named ‘South by’ here in Austin, Texas—and someone put a portion of Pi (3.14159265359…) up in the air yesterday evening. 

Pi kept happening in the sky, even after a venue change…

It does go on forever, but apparently our friends ran out of steam. I hope your day includes something circular and that you enjoy the area of said circular object.