Selecting the right spot to smash a spacecraft into the surface of a hazardous asteroid to deflect it must be done with great ...

At a busy street crossing, people wait for the signal to change. When one person steps out first, others soon follow.

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 ...

If you want to kick things up a notch, Miller suggests increasing the incline and/or your speed. You can check in with ...