Pi, a beautiful, mystical, never-ending, never-repeating number that expresses the relationship between the diameter of a circle (distance across through the middle) and its circumference (distance all around the edge).
Why today? It’s March 14__3/14__3.14
Actually, 3.1415926535897932384626433832795028841971693993751058209 7494459230781640628620899862803482534211706798214808651 32823066470938446095505822317253594081284811174502841027019385211055596446229489549303819644288109756659334461 2847564823378678316527120190914564856692346034861045432 6648213393607260249141273724587006606315588174881520920 9628292540917153643678925903600113305305488204665213841 4695194151160943305727036575959195309218611738193261179 3105118548074462379962749567351885752724891227938183011 9491298336733624406566430860213949463952247371907021798…
If you’d like to see the first million digits of pi, visit PiDay.org, where you can also send Pi Day ecards, find pi day art & food projects (featuring pie, of course), and pi day project ideas for teachers. Some schools have contests testing who can memorize the most digits. (Personally I’d rather see kids be able to calculate the volume of a cylinder than to memorize a string of random digits, but it makes for some math fun I suppose.)
Pi Day celebrations naturally suggest pastry tributes to this number. Click here to view entries in a Pi Day Pie Contest and cast your vote for the best one. (View last year’s amazing finalists here.)