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 Homogeneity and isotropy at large scales

5. Olbers’ paradox Why the sky is dark ? Olbers’ paradox Why the sky is dark ?

6. Hubble expansion 1929 redshift

7. 1996

8. Expanding space

9. Distance: coordinates and proper distances Distance: coordinates and proper distances

10. Lookback time

11. Looking into past Looking into past

12. Curvature

15. Cosmological resdshift Cosmological resdshift

16. Cosmological change of angular size Cosmological change of angular size

17. Horizons

18. Test particle

19. Friedmann’s equations

20. Deceleration parameter and critical density Deceleration parameter and critical density

21. How parameters depend on a ?