Long before pi had a name, people were drawn to its mystery. Every year on March 14, Pi Day highlights one of math"s most recognizable constants. The date reflects the first three digits of pi (π), the ratio of a circle"s circumference to its diameter: 3.14. Pi"s infinite, nonrepeating decimal has fascinated thinkers for a long time. The modern celebration began in 1988, when physicist Larry Shaw marked the day with a fitting tribute: serving pie.
Celebrating Pi Day
Today in History
More Desktop Wallpapers:
-
International Ice and Snow Sculpture Festival, Harbin, China
-
World Bee Day
-
Sunbeams across Tartu County, Estonia
-
Wildflower bloom, Central Valley, California
-
A plot was afoot
-
50 years of the Endangered Species Act
-
Mount Hood, Oregon
-
Children at play for International Day of Friendship
-
Sandstone formations in the badlands near Caineville, Utah
-
Rice terraces of Mù Cang Chải, Yên Bái province, Vietnam
-
The Feathers at Frenchman Coulee near Vantage, Washington
-
Spotted owlet, Bangkok, Thailand
-
Tintern Abbey, Wales
-
Long-eared owl in the Czech Republic
-
Salmon migration in full swing
-
Friendship Day in the City of Brotherly Love
-
A misty morning in Brazil
-
Bringing the moon to Earth
-
Celebrating Pi Day
-
20 years later
-
Moai statues on Easter Island, Chile
-
Cable car station, Graubünden, Switzerland
-
Peña Roya beech forest, Moncayo Natural Park, Aragon, Spain
-
Black Fell in England s Lake District
-
Reflecting on one of the world s strangest rivers
-
Bathing huts in Skåne County, Sweden
-
International Talk Like a Pirate Day
-
Visiting a Maratha fortress
-
Quiver trees in Namibia
-
Celebrating Native American Heritage Month
Bing Wallpaper Gallery

