General Relativity, Lecture 11: Curvature. The Minimal Coupling Principal.

Lecture 11 of my General Relativity course at McGill University, Winter 2011. Curvature, the Minimal Coupling Principal. The course webpage, including links to other lectures and problem sets, is available at

http://www.physics.mcgill.ca/~maloney/514/

The written notes for this lecture are available at

http://www.physics.mcgill.ca/~maloney/514/514-11.pdf