March 13 is "Pi Day," a celebration of the irrational number pi. Six-time USA Memory champion Nelson Dellis has memorized hundreds of pi digits. He talks about how, and other techniques to improve ...

Celebrate Pi Day and read all about how this number pops up across math and science on our special Pi Day page. Grab something circular, like a cup, measure the distance around the circle, and divide ...

If you had walked onto a trading floor thirty years ago, you would have heard noise before you saw anything. Phones ringing, ...

Random numbers are very important to us in this computer age, being used for all sorts of security and cryptographic tasks. [Theory to Thing] recently built a device to generate random numbers using ...