Python is a widely-used programming language that is widely known for being beginner-friendly, easy to learn, and very flexible. One of its many strengths is its ability to be used for graphics ...

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 ...

Trihexaflexagon is constructed by cutting a strip of paper so that it may be marked off in 10 equilateral triangles (A). The strip is folded backward along the line ab and turned over (B).