When you look out of the window of a plane, everything looks so small. But they're all big enough to do some awesome physics.

The angular momentum is a quantity that we can calculate for rotating object. It's the product of the angular velocity (how fast it spins—represented with the symbol ω) and the moment of ...

At t 2, the angular velocity is zero, with a non-zero (positive) angular acceleration. At that time, the direction of rotation for BC is changing from CW to CCW. In summary, you should never assume ...

Key concepts Physics Angular momentum Tension Introduction You might have seen figure skaters spinning around quickly and then tucking their arms to spin faster—or opening them to spin more ...

Stretching the limbs out will increase the moment of inertia, therefore decreasing the angular velocity — which is essential for a neat and flawless dive into the water.

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 ...