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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Cheetah in Ngorongoro Conservation Area, Tanzania
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Mountain goats at Glacier National Park in Montana
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Traditional red fishermens cabins, Reine, Norway
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A delta in the Venetian Lagoon, Italy
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Italy s submerged village
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Happy St. Patricks Day!
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Composite of photographs from the Apollo 15 mission
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What s better than a smile?
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Salt ponds of Maras, Peru
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World Childrens Day
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Spotted eagle rays in the Galápagos Islands
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Across the great plains of Africa
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Delicate Arch, Arches National Park, Utah
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Wild and beautiful Alaska
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A bull, some flowers, and a stratovolcano
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A river runs through rice fields
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Martin Luther King Jr. Day
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Of moose and Maine
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Humming along
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Albion Falls, Hamilton, Ontario, Canada
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Lei Day
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Holey moley–it’s National Doughnut Day!
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Autumn in the cypress swamp
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A monster view in Scotland
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From garden to table?
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Ice and Snow Sailing World Championships
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Old Rock Day
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Happy Mothers Day!
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Marseille welcomes the Olympic torch
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World Laughter Day—it s a hoot
Bing Wallpaper Gallery

