Explore Episode Segments
How Many Digits Of Pi Do We Really Need?
Mathematician James Grime of the YouTube channel Numberphile has determined that 39 digits of pi should suffice.
Eugenia Cheng: How To Bake Pi
In her new book How to Bake Pi, mathematician Eugenia Cheng cooks up digestible math lessons on number theory to topology.
SciFri Celebrates π
This year holds an unusually special treat for enthusiasts of the constant π: March 14, 2015 approximates π not just to the usual three digits (3.14) but to five: 3.14.15.
Celebrating Irrational, Transcendental Pi
As we celebrate Pi Day, mathematician Steven Strogatz talks about how the ancients calculated pi—and how you can do it at home.