Review nowNothing due todayFinished lessons come back the day after, then further apart each time you get them right.Start here1.1 Homogeneity, Isotropy and the Cosmological PrincipleUnit 1 · The Expanding UniverseStartThen in this unit: 1.2 Uniform Expansion and the Scale Factor; 1.3 Comoving Coordinates and Proper Distance; 1.4 Cosmological Redshift: Stretched with SpaceReady to start · 0Everything they build on is doneFinish the topic in progress to open more.
The map
1.1Homogeneity, Isotropy and the Cosmological PrincipleReady to startneeds nothing · opens Start lesson
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Unit 1 · 0/5The Expanding Universe
Unit 2 · 0/6The Dynamics of Homogeneous Expansion
Unit 3 · 0/5Non-Euclidean Spaces
Unit 4 · 0/5The Spacetime Metric and Geodesics
Unit 5 · 0/6Black-Body Radiation and the Thermal History
Unit 6 · 0/5The Cosmic Microwave Background
Unit 7 · 0/6The Cosmological Constant and the Accelerating Universe
Unit 8 · 0/6Big-Bang Nucleosynthesis
Unit 9 · 0/7Problems of the Hot Big Bang, and Inflation
Unit 10 · 0/7Density Fluctuations and the Growth of Structure