Category Archives: Uncategorized

Cosmic strings

Einstein equation solution for the interior of a spherically symmetric star

Black hole with static charge; Reissner-Nordström solution

Schwarzschild metric with non-zero cosmological constant

Schwarzschild metric with negative mass

Plane symmetric spacetime

Schwarzschild metric – the Newtonian limit & Christoffel symbol worksheet

Schwarzschild metric – finding the metric; Birkhoff’s theorem

Ricci tensor for a spherically symmetric metric – the worksheet

Spherically symmetric solution to the Einstein equation