By: Katie Auwaerter  |  Asst. Features Editor Mathletes and science nerds rejoice; your day of celebration is almost here. Pi Day is this Friday. Not to be confused with National Pie Day on Jan. 23, Pi Day celebrates the mathematical constant π, which is the ratio of a circle’s circumference to its diameter. But how do you celebrate such a momentous holiday? Luckily, Pittsburgh is … Continue reading Pi Day Friday: Pittsburgh celebrates math through pi