Relativity: Special and General — Part 15 Parallel Transport of Vectors (1)

Parallel transport is one of the most challenging concepts in general relativity. In this series, we work through it step by step. In Part 15, we derive the line element and metric tensor on a two-dimensional sphere embedded in three-dimensional Euclidean space — building the foundation for understanding parallel transport in curved spacetime, the very heart of general relativity.