Full relativity playlist: https://www.youtube.com/playlist?list=PLJHszsWbB6hqlw73QjgZcFh4DrkQLSCQa
Powerpoint slide files: https://github.com/eigenchris/MathNotes/tree/master/Relativity
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0:00 Introduction
2:22 Number-flux 4-vector N
9:58 Conservation of Particle Number
11:11 Galilean Transformation for N
12:57 Lorentz Transformation for N
15:41 Energy-Momentum Tensor T
21:51 Interpreting Components of T
23:47 Conservation of Energy-Momentum
28:28 Dust and Perfect Fluid
32:21 Conclusion