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What is the diffeference between cosmic background radiation and red shift?
The two are completely unrelated.
What is the difference between cosmic background radiation and red shift?
Cosmic microwave background radiation is a specific radiation. Red shift is a change in frequency due to the fact that an object moves away from us (or for some other reason, such as a gravitational well); and that affects ALL types of radiations.
What evidence was used to develop the big bang theory?
The red shift and the cosmic microwave background radiation was the evidence used to develop the big bang theory.
How does cosmic microwave background radiation and red shift shown by distant galaxies support the big bang theory?
Red shift is the easiest to understand. Galaxies move away from us, therefore they move away from one another, therefore they must have been closer together in the past. (Redshift is usually interpreted to be the result of the cosmological Doppler effect.)As for the cosmic microwave background, both its relative homogeneity and the degree of minor inhomogeneities are basically in close agreement with the predictions of Big Bang + Inflation.
How can astronomers infer approximately how long the universe has been expanded?
Astronomers can determine the expansion of the universe by observing the cosmic background radiation, and the red- or blue-shifting of distant objects.
What evidence in 1956 that supports the big bang theory?
1) The existence, isotropy, and spectrum of the Cosmic Microwave Background Radiation. It was predicted sixteeen years before it was detected, and has been found to be exactly as proponents of Big Bang Cosmology (BBC) say it should be. All other hypotheses are reduced to saying, "I know the CMBR is there, I just have no explanation for it." 2) The red-shift of all distant galaxies, with the size of the red shift being proportional to the galaxies' distance from us. All observations of this red shift support a Universe that was far denser about 13.7 billion years ago. 3) The ratio of hydrogen and helium in our Universe is exactly as predicted by BBC. 4) Quasars are distant from us (ie, far in our past), but none are close. 5) The ratio of isotopes with long half-lives to their decay products show none of the former existed prior to about 12 billion years ago. 6) No white dwarf stars -- which will remain stable for tens of trillions of years -- have been found older than about ten billion years. The evidence for BBC is as strong as the evidence that our Earth goes around our Sun.
How is the red shift different than the blue shift?
Radiation from a source moving away from the observer is red-shifted. Radiation from a source moving towards the observer is blue-shifted.
How does red shift and cosmic radiation support the big bang theory?
Red shift shows that the distance between all points in our Universe has been increasing at a constant (approximately) rate. Thus, there must have been a time when the distance between points in our Universe was so small that all matter must have been (almost) infinitely dense. Based on our present calculation of the expansion rate, scientists have concluded that this time was 13.8 billion years ago. If Big Bang Cosmology is correct, then the existence, spectrum, and isotropy of the cosmic microwave background radiation are all very easy to explain. For all other hypotheses, even the existence of the cmbr is impossible to explain. Science requires that, when one hypothesis perfectly predicts an observation while another doesn't, you prefer the former.
What evidence is collected by the tools used to support the Big Bang theory?
Hello i am minakshi and the answer is that the evidence collected by each tool is that the cosmic background microwave radiation sent by cosmic background explorer through radars it suggest that there was big bang in the past as big bang theory supports , the hubble space telescope which gives us information about the red shifs of galaxies and the doplers efect, and the analizationof the presence of light elements hydrogen and helium through spectroscope.
What is another explanation for the cosmic microwave background?
This is the another theory, which may explain the cosmic microwave background.About 14 billion years ago, you had the "Big bang". Then you had the matter in the form of plasma for about 380,000 years. Till then light was absorbed in your universe. When the matter cooled down enough, light entered in your universe. The cosmic microwave background is in the form of "Glow". That means you are unable to locate the source of light. Cosmic microwave background is not associated with any stars or galaxies. Such type of glow light indicate that the rays are practically parallel. That means the lens of your space telescope perceives the radiation as parallel radiation. So the source of radiation is probably too far, for the astronomical scale also. So the radiation has been coming from other universes, which are too much away from your universe. You may be able to locate the source of radiation with twin space telescopes placed at Lagrangian points 4 and 5. The light is "red shifted" to microwave radiation, means that it has come through the areas of very high gravitational force. The radiation has been coming from all sides means that there are too many sources of light around your universe.
What evidence is collected by each tool used to support the big bang theory?
Hello i am minakshi and the answer is that the evidence collected by each tool is that the cosmic background microwave radiation sent by cosmic background explorer through radars it suggest that there was big bang in the past as big bang theory supports , the hubble space telescope which gives us information about the red shifs of galaxies and the doplers efect, and the analizationof the presence of light elements hydrogen and helium through spectroscope.
What are two pieces of evidence of the big bang and that the universe is expanding?
1) Red shift seen in all distant galaxies, whose size is propotional to the galaxy's distance from us. 2) Existence, isotropy, and spectrum of the cosmic microwave background radiation.
