Centuries ago, under the shade of a banyan tree, teachers (gurus) taught their students (shishyas) in gurukuls. At that time, there were no classrooms or gadgets to teach, just the oral lessons and ...

Each week, Cookie Jam gives us a mix of easy and tricky Buzzwords. “Math that introduces letters as variables” is definitely one of the tougher ones, so here’s a little help. Algebra is a branch of ...

In 1887, Lord Rayleigh published a theory of a surface wave that later became known as the Rayleigh wave. The main features of this wave are its attenuation with depth and the fact that its velocity ...

In January I wrote a piece titled “ 5 Physics Equations Everyone Should Know .” Lots of you weighed in with your own ...

Mastering ellipses and cylinders can be tough, but with the right approach, you can improve quickly. This guide shares practical tips and techniques to fix common mistakes and build confidence in your ...

Physics and Python stuff. Most of the videos here are either adapted from class lectures or solving physics problems. I really like to use numerical calculations without all the fancy programming ...

Ask the publishers to restore access to 500,000+ books. An icon used to represent a menu that can be toggled by interacting with this icon. A line drawing of the Internet Archive headquarters building ...

An illustration of a magnifying glass. An illustration of a magnifying glass.