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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Broken Beach in Nusa Penida, Bali, Indonesia
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Armbrug bridge, Amsterdam, Netherlands
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Moody skies over Valletta
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Keep your hands inside the ride at all times…
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Is that a buzzing sound?
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European Day of Parks
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First day of National Park Week
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Asteroid Day
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Halo around the sun
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Monet still makes an impression
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Travels to the Oregon deep
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Snow buntings take flight
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Muskoxen in Dovre-Sunndalsfjella National Park, Norway
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Happy Fathers Day!
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Let s celebrate cephalopods
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On the Route of the Waterfalls
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20 years later
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Frost on autumn leaves
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Prasat Phanom Rung temple ruins, Thailand
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Composite of photographs from the Apollo 15 mission
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Womens History Month
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A sleeping green giant
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Computer Science EDU Week
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Meandering through Patagonia
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Indigenous living
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Sounds of Bach come to Bath
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International Bat Appreciation Day
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World Migratory Bird Day
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High above the reef
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Rideau Canal Skateway in Ottawa, Canada
Bing Wallpaper Gallery

