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ⓘ Cosmological principle. In modern physical cosmology, the cosmological principle is a prediction based on the idea that the universe is about the same in all pl ..




Cosmological principle
                                     

ⓘ Cosmological principle

In modern physical cosmology, the cosmological principle is a prediction based on the idea that the universe is about the same in all places when viewed on a large scale.

Forces are expected to act uniformly throughout the universe. There should, therefore, be no observable irregularities in the large scale structure. The structure is the result of the evolution of the matter field after the Big Bang.

Astronomer William Keel explains:

The cosmological principle is usually stated formally as Viewed on a sufficiently large scale, the properties of the universe are the same for all observers. This amounts to the strongly philosophical statement that the part of the universe which we can see is a fair sample, and that the same physical laws apply throughout.

The two testable consequences of the cosmological principle are homogeneity and isotropy. Homogeneity means that the same observational evidence is available to observers at different locations in the universe "the part of the universe which we can see is a fair sample". Isotropy means that the same observational evidence is available by looking in any direction in the universe "the same physical laws apply throughout". The principles are closely related, because a universe that appears isotropic from any two for a spherical geometry, three locations must also be homogeneous.

                                     
  • time, and how it changed to become what it is now. Add to this the cosmological principle which suggests that on large scales the Universe is roughly the
  • a theory proposed by Albert Einstein known as the cosmological principle The cosmological principle says that the entire universe is approximately equal
  • larger than 1, 200, 000, 000 light years are incompatible with the cosmological principle according to all estimates. Horvath, Istvan Hakkila, Jon Bagoly
  • link cosmology - Definition of cosmology in English by Oxford Dictionaries Oxford Dictionaries - English. Einstein, A. 1952 Cosmological considerations
  • signals, which has had time to reach the Earth since the beginning of the cosmological expansion. The observable universe is a spherical volume a ball centered
  • anthropic principle says that the universe is how it is because it must allow for the eventual creation of us, as observers. The anthropic principle was thought
  • Since these are unknown in exact detail, cosmological models have been based on the cosmological principle which states that the Universe is homogeneous
  • H.A Einstein, Albert Minkowksi, Hermann and Weyl, Hermann 1952. The principle of relativity: a collection of original memoirs. Dover. Lucas, John Randolph
  • principle This means that the universe supports life because we wouldn t be here to wonder that if it didn t. This usage of the anthropic principle is
  • ISBN 978 - 0 - 226 - 87033 - 5. Rindler, Wolfgang 2001 Relativity: Special, General, and Cosmological Oxford University Press, USA. ISBN 978 - 0 - 19 - 850836 - 6. Misner, Charles