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 ...

A multimeter might look intimidating, but learning to use this simple electrician's tool will come in handy during a number of every day tasks.

A simple internet speed test can tell you a lot about your home's network and whether you're getting your money's worth. We'll show you how to run one and more.