Physics and Python stuff. Most of the videos here are either adapted from class lectures or solving physics problems. I ...

Judith S. Gillies’ article about a fun/educational TV program delights me (“Learning to Make the Difficult Easy,” Jan. 2). Shades of Julius Sumner Miller! In the mid-’50s, he had a program on TV every ...

The Great Smoky Mountains are wonders of nature. Thanks to my kids, I get to experience them at times. My daughter used to have volleyball tournaments in Sevierville, Tennessee, and this weekend, the ...