(Invoking related search suggestions.)
Deriving and interpreting the core equations that describe how matter and energy tell space-time how to curve. Schwarzschild Geometry:
The most distinctive feature of the Theoretical Minimum series is its demand for active participation. The PDF is littered with exercises, many of which are not trivial plug-and-chug problems but small proofs or derivations. Susskind and Cabannes are explicit: reading is not enough. To possess the theoretical minimum, one must be able to reconstruct the argument. For instance, the derivation of the geodesic equation from a variational principle is left partly as an exercise, forcing the reader to handle index manipulation and Euler-Lagrange equations themselves.
