Spotlight

Pi Day

A celebration of that tasty transcendental number.

Kitchen Math: How to Eat π Pies

Methodically slice up four pies to reach the irrational number pi.

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How many digits can you recite?

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Pi Day Mashup

It's Pi Day (and Einstein's birthday). Celebrate with this mix of tributes to the telltale Greek letter that symbolizes that endless number.

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14:52

SciFri Celebrates π

This year holds an unusually special treat for enthusiasts of the constant π: March 14, 2015 approximates π not just to the usual three digits (3.14) but to five: 3.14.15.

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