National Geographic Daily News

merveilleuses preuves de la creation de DIEU et personne ou rien d'autres

Hugo Marconi Ribeiro
Hugo Marconi Ribeiro

nice...but pi day is anglo notation only, because in latin notation doesn´t exist in this date, what a pity!

Papa Foote
Papa Foote

The celebration of "Pi Day" raises the age-old question of whether perfect circles exist in the universe - the "New Movie" might also be an "example"?

"..Pi Day and Pi Approximation Day are two unofficial holidays held to celebrate the mathematical constant π (pi). Pi Day is celebrated on March 14, or in the month/day date format as 3/14; since 3, 1 and 4 are the three most significant digits of π..."

How to Feed Our Growing Planet

See blogs, stories, and news »

The Innovators Project

  • Megafishes Project

    Megafishes Project

    The unprecedented use of fresh water has led to the declining populations of these aquatic giants. Learn more about these big fish before they disappear.

See more innovators »

Latest News Video

See more videos »

See Us on Google Glass

Shop Our Space Collection

  • Be the First to Own <i>Cosmos: A Spacetime Odyssey</i>

    Be the First to Own Cosmos: A Spacetime Odyssey

    The updated companion book to Carl Sagan's Cosmos, featuring a new forward by Neil deGrasse Tyson is now available. Proceeds support our mission programs, which protect species, habitats, and cultures.

Shop Now »