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 ...

It can be confusing to drive in a roundabout or traffic circle. Here are the rules to follow, and the differences between the ...

You can’t have it both ways. Either you define the area around you as Dr. Phil’s “a safe place to fall” for your resident ...

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 ...

With the help of citizen scientists, astronomers have discovered a rare pair of "Odd Radio Circles" overlapping in space.