Two mathematicians have proved that a straightforward question—how hard is it to untie a knot?—has a complicated answer.

For years, a French mathematician searched for a proof that a gigantic number is prime. His method is still used 150 years ...

Many solar eclipse maps use clean lines to represent the path of totality, but the reality isn't so clear cut, and those maps ...

This caring for oneself is not to be confused with selfishness. Selfish people hold onto their stuff and don’t share it with ...

Physics and Python stuff. Most of the videos here are either adapted from class lectures or solving physics problems. I ...

With close to a decade of writing and editing experience, Maisha specializes in service journalism and has produced work in the lifestyle, financial services, real estate, and culture spaces. She uses ...

Every time Connie publishes a story, you’ll get an alert straight to your inbox! Enter your email By clicking “Sign up”, you agree to receive emails from ...

Some standard modules for making 3d shapes with attachment support, and function forms that produce a VNF. Also included are shortcuts cylinders in each orientation and extended versions of the ...

The way we work and deliver our purpose is based on refreshed shared definitions of why we exist, what we seek to achieve and how we lead, work and behave. It aims to underpin, enable and support all ...

The term "involute" refers to the shape of the teeth: the curves of the teeth are involutes of circles, which are curves that optimize gear performance. Figure 1.1.2: The three marked circles are key ...