Modeling the motion of a pendulum is often included in introductory physics courses, but it's not as easy as you think.

Explore a single-axis self-balancing reaction wheel inverted pendulum, a fascinating challenge in control theory. Built with only Lego parts for the structure and motor, this unstable system uses ...

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 ...