Pi Day Also Is Taking Place In Second Life

The number is Pi, 3.1415926535"¦ad infinitum. It's today's date and the starting time, the number
you get when you divide the circumference of a circle by its diameter, and it cannot be expressed as a fraction. It continues forever. In an era when math and mathematicians have become sexy again, come to the Exploratorium and gather around the Pi Shrine to perform pi-related rites and eat ritual food -- will it be apple pie or pizza pie or just pie in the sky? -- in honor of this special number.

Sing Pi Day songs, bead a pi string, and circumnavigate the pi shrine. It's all part of Pi Day celebrations, which culminate, appropriately enough, on March 14 at 1:59pm (It's also Einstein's birthday!). That's the third month, the fourteenth day, at 1:59pm, corresponding to the first 6-digits of Pi. Pi Day is included in the price of admission to the Exploratorium. Pi Day also takes place in the Second Life version of the Exploratorium, known as 'Splo.

At 1:59pm, celebrants are invited to circumambulate the Pi shrine approximately 3.14 times, since 3.14 is an approximation of Pi. The Pi Shrine is a small brass plate engraved with pi to a hundred digits located on the floor on the mezzanine level of San Francisco's Exploratorium, the prototype for hands-on science museums around the world. Add beads to a ritual Pi string, where each bead color designates a value for Pi to over 1600 digits, and growing. Music based on the number Pi provides the ambience.

Most important of all, people eat pie. And as icing on the pie (even if it's a pizza pie), March 14 is Albert Einstein's birthday. -- www.exploratorium.edu