This series of short explainer films with Professor Brian Cox comprises six clips focused on forces, speed and motion. Each ...

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 ...

Centripetal and centrifugal forces are central to circular motion, but they're not the same. Discover the differences between ...

Isaac Newton would never have discovered the laws of motion had he studied only cats. Suppose you hold a cat, stomach up, and drop it from a second-story window. If a cat is simply a mechanical system ...

When you shine a flashlight into a glass of water, the beam bends. That simple observation, familiar since ancient times, ...