11. Displacement Vectors and Volumes (General Relativity)

Lecture 11 on General Relativity. This lecture covers: (1) manifold and tangent space; (2) displacement vectors (aka separation vectors); (3) volumes and the determinant of the metric; (4) space versus spacetime; and (5) the action principle for electromagnetism. Lecture slides with corrections can be found at: https://physicsunsimplified.com/