An introduction to the conceptual and mathematical framework of Einstein's General Theory of Relativity. We begin by considering the key insight of gravity as a geometric phenomenon, and how the curvature of spacetime by matter explains the equality of inertial and gravitational mass. We then discuss the mathematics of general relativity, including geodesics, differential manifolds, covariant derivatives, the metric tensor, Christoffel symbols, the Riemann curvature tensor, the Ricci tensor, and the energy-momentum tensor. The episode concludes with a derivation and explanation of the significance of Einstein's Field Equations. Recommended pre-listening is Episodes 114 and 115: Special Relativity 1 and 2.
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Episode 47: Vision Part 3
Episode 46: Vision Part 2
Episode 45: Vision Part 1
Episode 44: Cell Division
Episode 43: Electric Forces and Fields
Episode 42: Gases and Gas Laws
Episode 41: Flotation and Fluid Mechanics
Episode 40: Gun Control
Episode 39: Sovereignty and the State
Episode 38: Neurons and Synapses
Episode 37: Oxidation and Reduction
Episode 36: Consumer Choice Theory
Episode 35: DNA Structure and Function Part 2
Episode 34: DNA Structure and Function Part 1
Episode 33: Disturbing Social Psychology Experiments
Episode 32: Light and Optics
Episode 31: Solutions and Mixtures
Episode 30: Systems of Government
Episode 29: Operant Conditioning
Episode 28: Classical Conditioning
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