Sources : Discover,and in Reviews of modern Physics,Vol,29,No.4,pages 547-650;October 1957
Big Bang or Little Bangs
The Big Bang is the dominant theoryin cosmology,but a few venturesome astronomers have conjured alternate schemes for how the unviverse works.The quasi steady state thoery espoused by Geoffrey Burbidge is a rejiggering of the steady state theory first proposed bt astromomer Fred Hoyle and his colleagues in 1948.That theory described a universe that churns out matter continuously,without beginning or end.In the newer version,the universe expands and contracts in hundred-billion-year cycles,creating matter within galaxies in "mini Big Bangs."
"Do we know all the laws of physics"?
Geoffrey and Margaret burbidge were once among the most celebrated astronomers in the world.
Sources : Discover,and in Reviews of modern Physics,Vol,29,No.4,pages 547-650;October 1957
The battle btw steady staters and Big bangs advocates hings on an effect called redshift---the way a star's light is shifted towards the red end of the spectrum becoz of its motion away from the viewer.Both sides accept accept that the faster a source of light recedes from you,the more intensely it exhibits a redshift.And both agree that if the universe is expanding,then objects farther from us shld exhibit higher redshifs.Where they differ is that steady staters believe some objects wif high redshifs---eps certain quasars---are actually nearby matter traveling at a high velocity.According to the Big bang theory,quasars lie at extreme distances.But according to the steady state theory,quasars lie at extreme distances.But according to the steady state theory.quasars are being expelled by galaxies,so in the cases the high redshifs indicate the rapid motion of object that could be relatively nearby.