General Relativity: Predictions and Observations

This lecture goes beyond classical gravitational theory to explore general relativity, focusing on predictions and observations. The instructor covers historical context, the mathematics behind curved spacetime, and key concepts like gravitational lensing and black holes. The lecture delves into the implications of Einstein's theory, such as the deflection of light, the behavior of massive objects in curved spacetime, and the formation of black holes. It also touches on cosmology, the Big Bang theory, and the composition of the universe. The presentation includes demonstrations, thought experiments, and discussions on spacetime curvature, Lorentz transformations, and the invariance of physical laws.