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 ...

An Introduction to Numerical Modeling Every once and a while, I like to add new ways to do numerical calculations. In this case, it is with Khan Academy’s new computer science module.

Python and VPython. Python is a very easy language to learn and use and VPython is a module that creates awesome visuals for physics stuff. I can't use the word awesome enough here. GlowScript.