Velocity-time graphs show how the velocity (or speed) of a moving object changes with time. These graphs also show if the object is moving at a constant speed or accelerating, decelerating, or still.

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 have waited long enough. It is now time for another Angry Birds post. Today, it is the yellow bird's time. To start, an Angry Birds haiku: The Sun and sky, still. Green pigs cackle with delight.