Most explanations rely on "dark energy" to explain the Universe's accelerating expansion rate, but a new study takes a different path.

There are various methods to measure acceleration due to gravity. At Higher level all rely on one of the equations of motion. The measurements required will depend on the equation used. Watch this ...

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 ...

The width of the two taller parts of the card are measured and the card is attached to a trolley. We then place a light gate at the bottom of the slope and release the trolley. The light gate is ...

The equation of motion of a discrete linear system has the form of a second-order ordinary differential equation with three real and square coefficient matrices. It is shown that, for almost all ...