Learn how to sum and count Excel cells by color with 3 easy methods. Save time, reduce errors, and boost your data analysis ...

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 ...

Putting a human in the loop often refers to an artificial intelligence (AI), such as a target acquirer, that requires human authorization to proceed (as in, pull the trigger). However, in learning ...

Every so often its good to exercise your brain with a math problem or two that forces you to recall principles you learned ...