Review of Short Phrases and Links|
This Review contains major "Glossary of Cosmology"- related terms, short phrases and links grouped together in the form of Encyclopedia article.
- Cosmology - The scientific study of the origin, evolution, and fate of the universe.
- A cosmology is any model said to represent the observed universe.
- Cosmology - A summary of research areas at the University of Kansas, with links to activities and personnel.
- Cosmology : the science of the universe.
- Cosmology is a branch of astronomy which studies the structure, origins, and space- time relationships of the universe.
- Modern cosmology is a highly sophisticated subject funded by governments with hundreds of millions of dollars a year.
- MODERN COSMOLOGY is a relatively new invention.
- Modern cosmology is like a Superman -comic- book without Superman or humour.
- Modern cosmology is the understanding of the universe through scientific observation and experiment.
- Physical cosmology is the science that attempts to explain all observations relevant to the development and characteristics of the universe as a whole.
- Physical cosmology is a branch of astronomy, and studies the universe in its large-scale structure.
- Physical cosmology - The very early universe.
- Physical cosmology is a debatable category for this topic, to be sure.
- Physical cosmology is only one of the many beliefs associated with cosmology as a whole.
- String cosmology is a rapidly developing field that promises to revolutionise our views of the early Universe.
- String Cosmology - A lecture on aspects of superstring theory and cosmology.
- String cosmology is a relatively new field that tries to apply equations of string theory to solve the questions of early cosmology.
- Big bang: the origins of the universe.
- The Big Bang is a scientific theory, and as such stands or falls by its agreement with observations.
- The big bang is the expansion or stretching of space.
- Cosmologists are now scrambling to determine what exactly dark energy is.
- Cosmologists are perhaps more aware of the need to make their work accessible and coherent to non-scientists as well as to scientists in other disciplines.
- Cosmologists are uncertain of the timing of the epoch of galaxy formation and of the details of this complex process.
- Cosmologists are using the ``smoothness'' of the dark matter distribution to get a handle on its mass.
- General Relativity - A brief history of the development of general relativity with hyperlinks to biographies of each contributor.
- General Relativity - A brief overview of general relativity in non-technical terms.
- General Relativity - A laymen's guide to the theory of General Relativity.
- General Relativity is a "generalized" and enhanced version of special relativity.
- General Relativity is a complete revision and extension of Straumann's well-known classic textbook General Relativity and Relativistic Astrophysics.
- A redshift is a shift in the frequency of a photon toward lower energy, or longer wavelength.
- Redshift is a Doppler effect which states that if a galaxy is moving away, the spectral line of that galaxy observed will have a shift to the red end.
- Redshift is defined as the change in wavelength of a particular spectral line divided by the unshifted wavelength of that line.
- Redshift is defined as the increase in wavelength of a particular spectral line divided by the unshifted wavelength of that line.
- Redshift is the amount by which light is shifted toward the red end of an object's spectrum by the expansion of the universe.
- The 'shape of the Universe' is an informal name for a subject of investigation within physical cosmology.
- The shape of the Universe is a subject of investigation within physical cosmology.
- The shape of the universe is a subject of investigation within cosmology.
- String Theory - The Kaluza-Klein theory initially posited that gravity and electromagnetism can be unified by adding a fifth dimension of compactified space.
- String Theory was in trouble.
- String theory is a background-dependent, perturbative theory of gravity, normally formulated on a flat (Minkowski) spacetime.
- String theory is a multidimensional theory based on vibrating strings, as opposed to the point particles described in the Standard Model.
- String theory is a perfect example of runaway math without a true foundation.
- Dark energy is a mysterious repulsive force that causes the universe to expand at an increasing rate.
- Dark Energy - The force or energy postulated by cosmologists to explain the acceleration of the expansion of the universe.
- Dark energy is a mysterious force that causes the speeding up of the universe expansion.
- Dark energy is a mysterious force that is accelerating the expansion of the universe.
- Dark energy is a mysterious pressure that acts in the opposite direction of gravity, forcing the universe to expand faster than it otherwise would.
- The existence, properties, and significance of a cosmological horizon depend on the particular cosmological model being discussed.
- In any case, it is interesting to note that the cosmological horizon is a maximal limit of perception and not an actual boundary.
- Objects are drawn away from the observer at r=0 towards the cosmological horizon, leading them to fall in after a finite proper time.
- Cosmological Constant: The repulive force of empty space introduced by Albert Einstein because he didn't believe that the Universe was dynamic.
- Cosmological constant is a force term introduced by Einstein into his field equations to permit static, homogenous, isotropic model of the universe.
- Cosmological constant: the path back to a given redshift depends on how the universe has expanded since that time.
- It is common to quote values of energy density directly, though still using the name "cosmological constant".
- One also often hears the term "cosmological constant" associated with dark energy.
- A cluster is a group of stars or galaxies.
- Cluster - A group of galaxies held together by the force of gravity.
- Cluster: An assemblage of many galaxies.
- The cluster was placed in a two-population star field at distances in the range 1-30 Mpc and sky background was added.
- Cosmic microwave background radiation is a ---fingerprint--- from the birth of the Universe.
- Cosmic microwave background radiation: The remnants of the primordial fireball.
- The Cosmic Microwave Background Radiation is a form of electromagnetic radiation that fills the whole of the universe.
- The cosmic microwave background radiation is a cosmic remnant.
- The cosmic microwave background radiation is a remnant of the Big Bang and the fluctuations are the imprint of density contrast in the early universe.
- The Cosmological Principle is a general assumption that the matter in the universe is distributed in a fairly homogenous and isotropic manner.
- The Cosmological Principle is a principle invoked in cosmology that severely restricts the large variety of possible cosmological theories.
- The Cosmological Principle is a principle invoked in cosmology that, when applied, severely restricts the large variety of possible cosmological theories.
- The cosmological principle is a Copernican idea.
- Critical Density - The calculated mass density of the universe that stops the expansion of space.
- Critical density is the dividing line between models of the universe that expand forever ("open models"), and those that recollapse ("closed models").
- Critical density: The density of matter that would just halt the expansion of the universe.
- Critical density: the value of the average density of the Universe that would produce a Universe with Zero curvature (ie.
- The critical density is the demarcation between an open and closed Universe.
- Dark matter is any matter in the Universe which does not give off any light of its own, or does not interact with light the way typical matter does.
- Dark Matter: the exotic ingredient required by the BB model; a form of matter that does not emit, absorb, or scatter any light.
- Dark matter is a mysterious substance scientists think accounts for most of the mass in the universe but that is invisible to current instruments.
- DARK MATTER is a film by opera and theatre director Chen Shi-Zheeng.
- Dark Matter is a part of the --omega factor-- or the story of how the universe is expanding or contracting.
- The early Universe was filled homogeneously and isotropically with an incredibly high energy density and concomitantly huge temperatures and pressures.
- The early Universe was radiation dominated, but the present Universe is matter dominated.
- The early Universe was so hot and dense that it was like the conditions within a particle accelerator or nuclear reactor.
- The early universe was extremely hot.
- The early universe was filled homogeneously and isotropically with a incredibly high energy density and concomitantly huge temperatures and pressures.
- Galaxies are a massive gravitationally bound system of stars, an interstellar medium of gas and dust, and an unknown dark matter.
- Galaxies are also being destroyed or merged together as well in galaxy cluster s.
- Galaxies are also dynamic entities, changing over time.
- Galaxies are arranged into sheets and filaments surrounding vast empty voids.
- Galaxies are associated with galaxy clusters, collections of numerous galaxies held in proximity due to their gravity.
- Observable Universe: The Finite Spherical region of Matter and Space that we can see and interact with (within Infinite Eternal Space).
- The observable Universe was once a region about the size of a grapefruit.
- The observable universe is a relatively small region within one of these bubbles as shown in Figure 15-23a.
- The observable universe was actually only a very small part of the actual universe.
- An open universe is a model of the universe in which it will expand forever.
- An open universe is a universe that is infinite and will expand forever.
- An open universe is one that is an open manifold, meaning not compact and without boundary.
- Open Universe is a program similar to Celestia.
- Open Universe: A model of the universe which expands forever and is infinite in space and time, although it begins with a Big Bang.
- Phantom energy is a form of the dark energy that could be responsible for the puzzling accelerated expansion of the universe.
- Phantom energy is a hypothetical explanation for dark energy; the puzzling stuff thought to be responsible for the accelerated expansion of the universe.
- Phantom energy is a hypothetical form of dark energy with equation of state .
- Phantom energy is a hypothetical form of dark energy with equation of state w < - 1.
- The Big Bang theory uses Weyl's postulate to unambiguously measure time at any point as the "time since the Planck epoch ".
- As before, there have been 60.9 cosmological decades between the Planck epoch and the current epoch.
- Approximately 10 -35 seconds after the Planck epoch, the universe expanded exponentially during a period called cosmic inflation.
- Quasars are believed to be the most consistently luminous objects in the known universe.
- Quasars are distant, very energetic, stellar objects that can spew X-rays and visible light equal to the brightness of trillions of stars.
- Quasars are found to vary in luminosity on a variety of time scales.
- Quasars are only seen at great distances (and thus greatly distant times).
- Quasars are somewhat mysterious objects that populate the early universe.
- Deuterium - A special form of hydrogen (an isotope called "heavy hydrogen") that has a neutron as well as a proton in its nucleus.
- Deuterium is a stable isotope of hydrogen, meaning that it is not radioactive and has a very long life span.
- Deuterium is also called heavy hydrogen.
- Deuterium was discovered by Harold Urey, in 1932.
- Deuterium was the first isotope to be separated from its element in pure form.
- Cosmos was the generic name given to a series of earth-orbiting satellites by the Soviet Union.
- COSMOS is a completely new, totally exclusively game system.
- COSMOS is the first consumer product ever to use this technology.
- Cosmos is a city located in Meeker County, Minnesota.
- Cosmos is another word for universal, not weird.
- Anthropic Principle (four versions) The term "anthropic principle" was introduced in 1973 by Brandon Carter.
- Anthropic Principle: The Universe must have those properties which allow life to develop within it at some stage in its history.
- The Anthropic Principle is a social construct, because it is communicated to other human beings - so it depends on being humans in general being there.
- The Anthropic Principle is based on the underlying belief that the universe was created for our benefit.
- The Anthropic Principle was first defined in 1973, during a synopsia commemorating Copernicus ---s 500th birthday.
- Baryons are a family of heavyweight particles that includes the proton and neutron.
- Baryons are distinct from mesons in that mesons are composed of only two quarks.
- Baryons are fermions composed of three quarks, while mesons are bosons composed of a quark and an antiquark.
- Baryons are fermions, while the mesons are bosons.
- Baryons are massive particles which are made up of three quarks in the standard model.
- Branes are domains or swaths of several spatial dimensions within a higher-dimensional space.
- Branes are mathematical tools and "philosophy" for string theorists.
- Branes are put here and there at will, and supersymmetry is split or not, etc.
- Branes are simply objects with more dimensions.
- The branes are then flung apart.
- Brane cosmology is a protoscience based on some of the latest thinking about the nature of reality.
- Brane cosmology is a protoscience motivated by, but not rigorously derived from, superstring theory and M-theory .
- Brane cosmology is a version of string theory.
- Brane cosmology: an introduction.
- This Bubble universe theory fits well with the widely accepted theory of inflation.
- Bubble universe theory (also known as Bubble theory), in which new universes bud off from old ones.
- Hi Susan! Yes, I think you are talking about the Bubble universe theory, which is another hypothesis from many others of the multiverse theory.
- A closed universe is a result of a high average density (curvature) to space.
- A closed universe is like the surface of a 2 dimensional balloon, but in 3 dimensions.
- A closed universe is one with speherical geometry.
- Closed universe: A universe expanding slowly enough to be braked by gravity.
- The closed universe is similar to the surface of a sphere, the size is finite but there is no boundary.
- WMAP has found evidence for this so-called "cosmic neutrino background" from the early universe.
- Hence, there is a predicted cosmic neutrino background as dense as the photons which comprise the CMB.
- This cosmic neutrino background, while unlikely to ever be observed in detail, is analogous to the cosmic microwave background that was emitted much later.
- FRED HOYLE is one of the most famous living astronomers in Britain.
- Fred Hoyle was a great communicator and popularisor of science, as indeed an eloquent speaker.
- Fred Hoyle was an important scientist who worked at the frontiers of astronomy and theoretical physics.
- Fred Hoyle was born in 1915 in Bingley, and educated at Bingley Grammar School and Emmanuel College, Cambridge, where he studied Mathematics.
- Fred Hoyle was born in 1915 in Yorkshire and studied mathematics and astronomy at Cambridge University.
- Helium is the second most abundant element in the known Universe after hydrogen and constitutes 23% of the elemental mass of the universe.
- Helium is a colorless, odorless, and non-toxic gas.
- Helium is a colorless, odorless, tasteless chemical element.
- Helium is the by-product of nuclear fusion involving hydrogen.
- Helium is the result of two Hydrogen nuclei being fused.
- The horizon problem is a problem with the standard cosmological model of the Big Bang which was identified in the 1970s.
- The horizon problem was finally explained by inflation.
- The horizon problem: the universe has a finite age, so even light can only have travelled a finite distance by any given time.
- This seeming paradox is called the "Horizon problem".
- Hydrogen is the most abundant element in the known Universe; helium is second.
- Hydrogen is the lightest and most abundant element in the universe.
- Hydrogen is a means of transporting energy; it is not itself an energy source -- at least not when burned like a conventional fuel.
- Hydrogen is the simplest atom provided by nature.
- M-theory is a cutting-edge theory of physics that deals with the extension of superstring theory.
- M-theory is a proposed "master theory" that unifies the five superstring theories.
- M-theory is a theory of physics that deals with the extension of superstring theory.
- M-theory was also foreshadowed in the work of Paul Townshend at approximately the same time.
- A major problem was the extreme smoothness of the background microwave radiation.
- The major problem is the existence of dark matter (not dark energy), mainly because we cannot see them.
- Dark energy is also considered a hypothetical component of missing mass.
- WHERE IS THE MISSING MASS? The gravatational interaction of galaxies and galaxy clusters shows us that there is more matter in the Universe than we can see.
- At best case you have evidence that there is "missing mass" somewhere, but you have no idea whether your galactic mass estimation process is even valid.
- Photons are "accepted' into the bosonic shells and trapped.
- Photons are absorbed and reradiated more frequently as this takes place, hence the velocity of light decreases with time.
- Photons are observed to do work.
- The photons are "preserved" at that critical absorption frequency for near "eternities".
- The photons are not arriving at the dark fringes.
- Plasma cosmology is a classic non-standard model which was invented by Hannes Alfven to account for cosmological observations.
- Plasma cosmology is a non-standard cosmology which emphasizes the electromagnetic properties of astrophysical plasmas.
- Plasma cosmology is an alternative cosmology to the Big Bang cosmology.
- Plasma cosmology is known as a non-standard cosmology.
- Plasma cosmology is one non-standard model that may be able to account for Arp's empirical data, possibly without the need for the variable-mass.
- A static universe is one which is not expanding.
- The static universe is an interesting concept with a very long and interesting history.
- Steady state theory - An established theory of cosmology in the early and middle 20th century, made obsolete by the success of Big Bang theory.
- The Steady State Theory was a true scientific theory and as such it contained predictions that could be tested.
- The steady state theory was first put forward in 1948, and once enjoyed equal status with the big bang.
- The steady state theory was never on a very strong theoretical basis, because it required a negative energy field to create the matter.
- The steady state theory was wrong.
- A wormhole is a theoretical opening in space-time that is the mathematical solution to general relativity.
- A wormhole is a warping of spacetime that causes space to become "folded", supposedly allowing for "shortcuts" through space.
- A wormhole is like a cool subway tunnel between two locations.
- The name "wormhole" comes from an analogy used to explain the phenomenon.
* Alpher-Bethe-Gamow Paper
* Big Bang Nucleosynthesis
* Big Bounce
* Big Crunch
* Big Freeze
* Big Rip
* Comoving Distance
* Copernican Principle
* Cosmic Distance Ladder
* Cosmic Inflation
* Cosmic Variance
* Cosmological Decade
* Cyclic Model
* De Sitter Universe
* Dipole Anisotropy
* Dirac Large Numbers Hypothesis
* Doppler Effect
* Doppler Redshift
* Energy Density
* Equivalence Principle
* Esoteric Cosmology
* Fecund Universes
* Flatness Problem
* Flat Universe
* Galaxy Formation And Evolution
* Heat Death
* Heat Death of The Universe
* Horrendous Space Kablooie
* Hubble Law
* Inflationary Epoch
* Inflationary Universe
* Jack Sarfatti
* Kaluza-Klein Theory
* Lambda-Cdm Model
* Large-Scale Structure of The Cosmos
* Law of Three
* Local Geometry
* Lyman-Alpha Forest
* Magnetic Monopoles
* Non-Standard Cosmology
* Observational Cosmology
* Observational Evidence
* Omega Point
* Oscillatory Universe
* Particle Horizon
* Particle Physics
* Picard Horn
* Primordial Fluctuations
* Quantum Cosmology
* Ray of Creation
* Redshift Survey
* Relic Particles
* Religious Cosmology
* Roman Ring
* Sachs-Wolfe Effect
* Sloan Digital Sky Survey
* Standard Model
* Stellar Population
* Structure Formation
* Timeline of Cosmology
* Timeline of The Big Bang
* Tired Light
* Ultimate Fate of The Universe
* Vacuum Energy
* Weyl Curvature Hypothesis
Books about "Glossary of Cosmology" in