Pages in this set

Page 1

Preview of page 1
The Big Bang Theory
The cosmological principle

Hubble's Law
o Hubble realised universe is expanding
o Used type 1a supernovae and standard candles to calculate the distances to galaxies, and
measuring red shift
o Speed the galaxies moved away from Eath depended on how far they were away
o The…

Page 2

Preview of page 2
Age and size
t = distance 1
time = H

o absolute size of universe ­ unknown
o if H=75, radius of spehere = 13 bill. Years, with expansion of universe, radius = 46-47 bill

Dark energy
o expansion rate never been constant
o recently, expansion rate of universe…


No comments have yet been made

Similar Physics resources:

See all Physics resources »