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Observational Facts and Concepts in Cosmology: From Olbers' Paradox to Hubble Expansion and Curvature

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  1. שיעור 11 מבוא לקוסמולוגיה

  2. Observational facts Density contrast at small scales

  3. Anisotropy at small scales

  4. Homogeneity and isotropy at large scales

  5. Olbers’ paradox Why the sky is dark ?

  6. Hubble expansion 1929 redshift

  7. 1996

  8. Expanding space

  9. Distance: coordinates and proper distances

  10. Lookback time

  11. Looking into past

  12. Curvature

  13. Cosmological resdshift

  14. Cosmological change of angular size

  15. Horizons

  16. Test particle

  17. Friedmann’s equations

  18. Deceleration parameter and critical density

  19. How parameters depend on a ?

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