Tag Archive for: FLRW metric

journeycosmos3

Learn About the FLRW Metric and The Friedmann Equation

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Previous Chapter: A Journey Into the Cosmos – The Friedmann Equation                Chapter 2- FLRW Metric and The Friedmann Equation In…
cosmosintro

Learn About the Friedmann Equation and the Cosmos

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This is an introduction to cosmology for someone who has some knowledge of calculus and basic physics. In this tutorial, we will take a journey into the…
electric potential

Deriving the Cosmic Fluid Equation from Energy Conservation

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Local energy conservation in general relativity (GR), expressed as ##{T^{0b}}_{;b}=0##, combines with the Friedmann-Lemaître-Robertson-Walker (FLRW) metric…
universeexpand

Big Bang Models: Expansion, Dark Energy, Inflation

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Big Bang and expansion (no inflation, no dark energy) Empty-universe solution (FLRW) Einstein's General Relativity allows a solution (the FLRW metric)…