11. More on spacetime curvature.

MIT General Relativity, Spring 2020 Instructor: Scott Hughes View the complete course: YouTube Playlist: Variants on the Riemann curvature tensor: the Ricci tensor and Ricci scalar, both obtained by taking traces of the Riemann curvature.  The connection of curvature to tides; geodesic deviation.  Finally, the Bianchi identity, an identity describing derivatives of the Riemann curvature. License: Creative Commons BY-NC-SA More information at More courses at Support OCW at We encourage constructive comments and discussion on OCW’s YouTube and other social media channels. Personal attacks, hate speech, trolling, and inappropriate comments are not allowed and may be removed. More details at