Deriving the Schwarzschild Metric: Computing the Schwarzschild Radius and Conclusion

From a channel Lumen includes in full: Faculty of Khan makes animated lecture-style derivations in tensor calculus, general relativity, quantum mechanics and thermodynamics, laid out step by step.

A 11-minute video from Faculty of Khan's catalogue; the title names its topic.

Video by Faculty of Khan, played through YouTube's embedded player.