What is General Relativity? Lesson 46: Symmetries of the Riemann Tensor
49:40
What is General Relativity? Lesson 47: The double dual of the Riemann tensor
26:18
Relativistic Mechanics 1: Introduction and motivation
53:05
QED Prerequisites : Geometric algebra 31 - More about spinors (corrected!)
1:13:35
QED Prerequisites: Geometric Algebra - Maxwell's Equations
13:34
French or German: Which to Learn in 2025?
1:08:59
Algebraic Topology 0: Cell Complexes
59:02
When Europe Falters, America Gains
15:31