Homogeneity
The premise that physical properties are the same at every point (space looks the same at each point). Homogeneity may be tested for using the homogeneity luminosity test.
Homogeneity: The principle of homogeneity says that the distribution of matter does not vary with position. This is obviously wrong if we look at the local conditions.
homogeneity Assumed property of the universe such that the number of galaxies in an imaginary large cube of the universe is the same no matter where in the universe the cube is placed.
Homogeneity means "being similar throughout".Homogeneity may also refer to:* Homogeneous , a variety of meanings* In statistics homogeneity can refer to...
Homogeneity
The assumption that, on the large-scale, matter is uniformly spread throughout the universe.
Homogeneous Accretion ...
Homogeneity
(a) In cosmology, the property that any large volume of the universe looks the same as any other large volume. Most cosmological models assume homogeneity.
(b) This expresses the power of a mathematical function.
The homogeneity of the burst source population in space was studied on the basis of a sample of 225 observed gamma-ray bursts between September 1978 and July 1988 from the Pioneer Venus Orbiter.
Cosmic homogeneity is the first of two major assumptions that cosmologists make when studying the large-scale structure of the universe. Observations suggest that it is true, but it is by no means proven.
homogeneity (NASA Thesaurus) Having the same properties at all points. homogeneous atmosphere (NASA SP-7, 1965) 1. A hypothetical atmosphere in which the density is constant with height.
angels (radar) (NASA Thesaurus) Echos of false radar targets caused by atmospheric inhomogeneity, atmospheric refraction, insects, birds, or unknown phenomena.
It is known to be very Homogeneity, not very dense and is not known to interact through any of the fundamental forces other than gravity.
The reflecting telescope became the only available tool of the astronomer when great light grasp was requisite, as the difficulty of procuring disks of glass (especially of flint glass) of suitable purity and homogeneity limited the dimensions of the ...
On the one hand, it provides a strong justification for the assumption of homogeneity and isotropy that is common to most cosmological models.
The cosmological principle holds that the universe is the same in all places (a property known as homogeneity) and looks the same in all directions (a property known as isotropy). This principle refers to properties on the largest scales.
More recently, cosmologists started to ask whether homogeneity could be explained within the Big Bang theory rather than simply being assumed at the start.
There are starting to be observational limits on the redshift of galaxy formation from both directions - stellar evolution and homogeneity of the microwave background. Note again that an observer's and theorist's times of galaxy formation may differ.
When the concepts of homogeneity and isotropy are combined together, they make up the Cosmological Principle. This is sort of a rule that needs to be followed when people think about making models of the Universe.
This construction would give all the advantage of the younger Dollond's object-glass micrometer, and more than its sharpness of definition, without liability to the systematic errors which may be due to want of homogeneity of the object-glass; ...
The framework for the model relies on Albert Einstein's general relativity and on simplifying assumptions (such as homogeneity and isotropy of space). The governing equations had been formulated by Alexander Friedmann.
CriterionPetrologic Type 3456 Olivine homogeneity
> 5% mean deviations
<5%
homogeneous
Low-Ca pyroxene ...
COBE first discovered the predicted small variations in the temperature of the microwave radiation indicating inhomogeneity at a very early time in the age of the Universe.
1963 - Fred Hoyle and Jayant Narlikar show that the steady state theory can explain the isotropy of the universe because deviations from isotropy and homogeneity exponentially decay in time ...
 See also: Time, Energy, Second, Element, Total
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