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 ...

You can rewrite the momentum principle to solve for the change in momentum (which is useful). It looks like this: Trust me, you'll find this equation useful in just a little bit.

Nope! Remember—the relatively heavy weights were given momentum at the beginning of your spin when you set them hurtling around the office chair in that large, circular path.

Recently, [AlphaPhoenix] weighed an airplane. Normally, that wouldn’t be much of an accomplishment. Except in this case, the airplane happened to be in flight at the time. In fa ...