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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World Water Day
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Duomo Santa Maria del Fiore, Florence
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Naxos in the Cyclades Islands of Greece
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Land of the midnight sun
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Welcome to the Ring of Fire
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Embracing the cold
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Here there be dragons
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Thunderstorm above the plains, Bulgaria
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1934 Labor Day parade, Gastonia, North Carolina
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A place called ‘Peace’ in India
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Glacial spires in the fog
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International Surfing Day
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Lake Tai s cherry trees in bloom
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In Apia Harbor for Samoan Independence Day
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Sundance Film Festival
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30 years after Exxon Valdez
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Group of giant cuttlefish, Whyalla, South Australia
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An island for the birds
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A sizzling summit hides in the clouds
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Mexican giant cardon cactus
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Martin Luther King Jr. Day
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Welcome to ‘Hollywood North’
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Storks ready for takeoff
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National Mushroom Day
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Beethoven s 250th
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Tigh Mor Trossachs on Loch Achray, Scotland
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Happy Thanksgiving
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Red deer stag in De Hoge Veluwe National Park, Netherlands
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The story of the poinsettia
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Umschreibung by Olafur Eliasson in Munich
Bing Wallpaper Gallery

