Tremendous explosion theory was developed based on observations on the structure of the universe and theoretical considerations . In 1912 , Vesto Slipher was the first to measure the Doppler effect on the " spiral nebula " ( spiral nebula is an old term for spiral galaxies ) , and then discovered that almost all the nebulae away from the earth . He did not think further about the implications of this fact , and indeed at the time it was highly controversial whether these nebulae were "island universes " that are beyond the Milky Way galaxy .
Ten years later , Alexander Friedmann , a Russian cosmologist and mathematician , lowering the Friedmann equations from Albert Einstein's equations of general relativity . This equation shows that the universe may be expanding and in contrast to the static model of the universe as advocated by Einstein at that time .
In 1924 , Edwin Hubble's measurement of the distance to the nearest spiral nebulae showed that she is actually a different galaxy . Georges Lemaître independently then lowers the Friedmann equations in 1927 and proposed that the recession implied by equation nebula is caused by an expanding universe .
In 1931 Lemaître further propose that the expansion of the universe over time requires the condition that the universe shrinks over time irreversibility to the point where the entire mass of the universe centered on one point , namely " primeval atom " where time and space began .
Starting from 1924, Hubble developed a series of distance indicators which is the forerunner of the cosmic distance ladder using the 100 - inch Hooker telescope ( 2,500 mm ) at Mount Wilson Observatory . This enabled him to estimate the distance between galaxies red shift has been measured , mostly by Slipher . In 1929 , Hubble discovered korealsi between distance and recession velocity , which is now known as Hubble.Lemaître law has shown that this is expected , given the cosmological principle .
WMAP satellite picture of the artist who collects a variety of data to help scientists understand the devastating blast.
During the 1930s , other ideas proposed as non - standard cosmologies to explain Hubble's observations , including the Milne model , the universe is swinging ( initially proposed by Friedmann , but advocated by Albert Einstein and Richard Tolman ) and light hypothesis tired ( tired light ) Fritz Zwicky .
After World War II , there are two cosmological models allow . Only was Fred Hoyle 's steady state model , which proposed that the new material is created when the universe seemed to expand . In this model , the universe is roughly the same at any point in time .
Another model is the tremendous explosion Lemaître 's theory , advocated and developed by George Gamow , who then introduced the powerful explosion nucleosynthesis ( Big Bang Nucleosynthesis , BBN ) and that associate by Ralph Alpher and Robert Herman , the radiation of the cosmic microwave background ( cosmic microwave background radiation , CMB ) . Ironically , it was Hoyle who coined the term Big Bang to refer to Lemaître 's theory in a BBC radio broadcast in March 1949.
For a while , scientists support this theory divides into two . In the end , observational evidence favoring the theory of a huge explosion . The discovery and confirmation of radiation cosmic microwave background in 1964 confirmed a huge explosion as the best theory to explain the origin and evolution of the cosmos . Most present-day cosmology works dwell on understanding how galaxies form in the context of powerful explosions , an understanding of the state of the universe at terawalnya times , and reconciling observations with the basic theory of cosmic .
Various major advances in cosmology have been made since the devastating explosion late 1990s , primarily due to major advances in telescope technology and analysis of data derived from satellites such as COBE , the Hubble Space Telescope and WMAP .
Title : The history and development of the theory
Description : Tremendous explosion theory was developed based on observations on the structure of the universe and theoretical considerations . In 1912 ,...