Divide any circle’s circumference by its diameter and you get pi. But what, exactly, are its digits? Measuring physical ...

While building a simpler model for particle interactions, scientists made a sleek new pi. Representations of pi help scientists use values close to real life without storing a million digits. The ...

Uncover the surprising connection between Ramanujan's pi formulas and the universe. Learn how his century-old math helps explain turbulence, black holes, and more.

In school, you might have used pi to calculate the area of a circle or the volume of a cylinder, but the applications are ...

Google is marking Pi Day 2026 with a unique doodle, paying tribute to ancient Greek mathematician Archimedes and his pioneering work in calculating pi (π).

Pi refers to the ratio of a circle’s circumference to its diameter. The concept was popularised in 1988 when physicist Larry Shaw organised the first Pi Day event at the San Francisco Exploratorium.

Physicists are now using principles from quantum mechanics to build a new model of the abstract concept of pi. Or, more accurately, they built a new model that happens to include a great new ...

Here’s what you’ll learn when you read this story: While building a simpler model for particle interactions, scientists made a sleek new pi. Representations of pi help scientists use values close to ...