It’s Pi Day, the day we celebrate the mathematical constant π. This day was chosen since today’s date expressed numerically (in US format) matches the number’s first digits, 3.14. Pi represents the ratio of a circle’s circumference to its diameter. It can be used to compute the area and circumference of a circle, such as the crop patterns we"re looking at here in Colorado. (Who said math wasn"t useful in the real world?) Many towns, schools, and museums mark the day with festivities based around mathematics and, of course, serving pie. We can’t think of a more delicious way to study geometry.
Rocky mountain pi
Today in History
More Desktop Wallpapers:
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Yosemite National Park anniversary
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There’s a dog in there somewhere
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National Hummingbird Day
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The birth of Bauhaus
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Bioluminescence at Trwyn Du Lighthouse in Wales
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Art and soul
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Enter the magical world of Livraria Lello
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Llama Day
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Spring awakens
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Who s wearing such cute hats?
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A wonderland in winter
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Dr. Martin Luther King, Jr. Memorial in Washington, DC
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It s National Mushroom Month!
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Groundhog Day arrives—beyond a shadow of a doubt
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Pining for spring
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International Beaver Day
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Satellite image of sand and seaweed in the Bahamas
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International Tiger Day
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A bridge of Madison County
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Polar bears
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A notorious gunfight that was incorrectly named
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Albion Falls, Hamilton, Ontario, Canada
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Tigh Mor Trossachs on Loch Achray, Scotland
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International Day for Biological Diversity
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Happy Easter!
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The smoke before the bonfire
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The Battle of the Bulge 75 years later
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Ancient storage in the Grand Canyon
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Engineering an artificial harbor in Normandy
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Buddha in the roots of a tree, Ayutthaya, Thailand