8.286 The Early Universe (Fall 2013, MIT OCW). Instructor: Professor Alan Guth. The Early Universe provides an introduction to modern cosmology. The first part of the course deals with the classical cosmology, and later part with modern particle physics and its recent impact on cosmology.
Lecture 13 - Non-Euclidean Spaces: Spacetime Metric and Geodesic Equation
In this lecture, the professor reviewed open universe metric; discussed the differences between open universe and closed universe; and talked about spacetime metric.