Sometimes I have to write stuff so I won't forget how to do it. This is one of those times. In my recent post on the angular size of a soccer goal, I created a contour plot. Despite what you might ...

Driving a spacecraft around a planet isn’t anything like driving on a planet. A physicist explains orbital navigation. The ‘10 Martini’ Proof Connects Quantum Mechanics With Infinitely Intricate ...

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 ...