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 ...

Learn how to enable the Scientific Calculator and use Math Notes on your iPhone, and breeze through Math equations with ease.

The White House’s new tariffs announced Wednesday were pegged to amounts it said other countries impose on the U.S. In many cases, those amounts appear to match a basic formula: the size of a ...