For many employed Joes and Janes, Friday signals the end of the work week and is reason enough to celebrate. However, if you're looking for an additional reason to get your groove on heading into the weekend, go out and celebrate Pi Day, otherwise known as March 14th, or 3.14 (get it?). Some even began celebrating yesterday, such as AirSign, an aerial advertising company, which was forced by Mother Nature to get things going early.
AirSign partnered with artist ISHKY to write Pi in the sky, but they didn't stop at 3.14. They continued writing out hundreds of numbers of the mathematical constant using five aircraft. According to CNET, it was part of a public art project.
"We partnered with artist ISHKY, who specializes in grand-scale projects. ISHKY’s 'Pi In The Sky' explores the boundaries of scale, public space, permanence, and the relationship between Earth and the physical universe," AirSign stated in a blog post. "Our team of five synchronized aircraft equipped with dot-matrix skywriting technology follows a flight pattern that forms the first few hundred characters of pi’s infinite sequence at SXSW. Each number will measure more than a quarter-mile in height."
Pi is the ratio of a circle's circumference to its diameter that's often abbreviated to 3.14, though its decimal representation goes on forever. Lest you feel silly for filling up with suds in recognition of Pi Day, it's actually a real thing -- the House of Representatives passed a bill in 2009 officially recognizing March 14 as National Pi Day.