Friday is Pi Day, a national celebration of the mathematical concept, which is the ratio of a circle's circumference to its diameter and equals 3.14... Schools and museums often plan events to ...

Stephen Johnson is Senior Staff Writer for Lifehacker where he covers pop culture, including two weekly columns “The Out of Touch Adults’ Guide to Kid Culture” and “What People are Getting Wrong this ...

Pi is an important mathematical constant since it is the ratio of a circle's circumference to its diameter. The pi (π) is used in many mathematical formulae across math and physics. For the past ...

(NBC) - Happy Pi Day! The annual celebration, held every March 14, is your chance to pay tribute to the most famous constant in math and physics: the number you get when you divide the circumference ...