Angular Momentum, Torque, and Law of Gravitation

This lecture covers the equations of gravitational motion for any celestial body, the conservation of mechanical energy, and the concept of angular velocity. It also delves into gravitational orbits, the impact of relativity on classical mechanics, and the predictions of general relativity, including gravitational lensing, black holes, and time dilation. The instructor explains the concept of cosmology, the evolution of the universe, and the equilibrium in rotational motion, providing insights into the stability of equilibrium positions.