What is cosmic background radiation

Date:

2018-04-02 06:41:07

Views:

508

Rating:

1Like 0Dislike

Share:

Table of contents:

Despite the use of modern instruments and the latest techniques of studying the Universe, the question of its occurrence still remains open. This is not surprising when you consider her age: according to the latest reports, he is 14 to 15 billion years. Obviously, since there is very little evidence of what was happening once the Grand process of universal scale. So to say that either one is not solved, limiting hypotheses. However, one of them recently received a very substantial argument – the cosmic background radiation.

In 1964, two members of a well-known lab performing racionalidade for companion “Echo”, having access to sensitive equipment, decided to test some of their theories about the own radiation of certain cosmic objects.

In order to filter out possible interference from land-based sources, it was decided to use a wavelength of 7.35 cm, However, after you enable and configure the antenna it was a strange phenomenon: in the whole Universe recorded a noise, a constant background component. She did not depend on the position of the Earth relative to other planets that once seeded the assumption of interference to these space objects, nor the time of day. Neither R. Wilson or A. Penzias were not even aware that discovered the background radiation of the universe.

Since none of them thought this, blaming “background” on the features of the instrument (remember that the UHF antenna was the most sensitive at that time), had passed almost a full year before it became obvious – recorded the noise is part of the Universe itself. The intensity of the collected signal was almost identical to that of the intensity of blackbody radiation temperature of 3 Kelvin (1 Kelvin is equal to -273 degrees Celsius). For comparison, zero Kelvin corresponds to a temperature of an object from stationary atoms. The radiation frequency is in the range from 500 MHz to 500 GHz.

At this time, two theorists from Princeton University – R. Dicke, and D. Pebbles based on new development models of the Universe, mathematically calculated that this radiation should exist and permeate all space. Needless to say that Penzias, accidentally learned about the lectures on this subject, called the University and said that this relic radiation was detected.

Recommended

"Knowledge is light and ignorance is darkness": the value, meaning and alternatives

There are some sayings that would seem to need no explanation, such as “teaching & ndash; light and ignorance – darkness”. But some still do not understand their meaning. But not only for such people is written by our article. I...

What was invented by Mendeleev for the army. The history and fate of the invention

What was invented by Mendeleev for the army. The history and fate of the invention

D. I. Mendeleev was a brilliant Russian scientist-polymath, who made many important discoveries in various fields of science and technology. Many people know that he is the author of “Fundamentals of chemistry" and the periodic law of chem...

The origin of the Slavs. The influence of different cultures

The origin of the Slavs. The influence of different cultures

Slavs (under this name), according to some researchers, appeared in the story only in 6 century ad. However, the language of nationality bears the archaic features of the Indo-European community. This, in turn, suggests that the origin of the Slavs h...

Based on the theory of the Big Bang, all matter and energy of the Universe was the result of an enormous explosion. The first 300 thousand years after this space was a combination of elementary particles and radiation. Subsequently due to expansion the temperature began to fall, which gave the opportunity to receive the atoms. Register the background radiation-an echo of those distant times. As the universe had boundaries, the particle density was so high that the radiation was “connected”, as the mass of particles reflect all types of waves, not allowing them to spread. And only after the beginning of the formation of atoms in space became a “transparent” for the waves. It is believed that the CMB appeared that way. Currently, each cubic centimeter of space contains about 500 of the initial quanta, however, their energy has decreased nearly 100 times.

Cosmic background radiation in different parts of the Universe has a different temperature. This is due to the location of the primary matter in the expanding Universe. Where the density of atoms of future matter was higher, the proportion of radiation and therefore its temperature is reduced. It is in these areas subsequently formed large objects (galaxies and their clusters).

The Study of the CMB lifts the veil of obscurity over many processes occurring at the beginning of time.


Article in other languages:

AR: https://tostpost.com/ar/cars/7586-what-is-the-exam-in-the-traffic-police.html

BE: https://tostpost.com/be/a-tamab-l/13550-shto-zh-uya-lyae-saboy-ekzamen-u-d-bdr.html

DE: https://tostpost.com/de/autos/13553-was-ist-eine-pr-fung-in-der-verkehrspolizei.html

ES: https://tostpost.com/es/coches/13560-que-es-un-examen-en-el-gbdd.html

HI: https://tostpost.com/hi/cars/7592-what-is-the-exam-in-the-traffic-police.html

JA: https://tostpost.com/ja/cars/7588-what-is-the-exam-in-the-traffic-police.html

KK: https://tostpost.com/kk/avtomobil-der/13553-b-l-b-ld-red-emtihan-gibdd.html

PL: https://tostpost.com/pl/samochody/13540-co-to-jest-egzamin-do-policji.html

PT: https://tostpost.com/pt/carros/13534-o-que-um-exame-de-pol-cia-de-tr-nsito.html

TR: https://tostpost.com/tr/arabalar/13556-nedir-bu-s-nav-traf-k-polisi.html

UK: https://tostpost.com/uk/avtomob-l/13550-scho-zh-yavlya-soboyu-spit-v-gibdd.html

ZH: https://tostpost.com/zh/cars/8252-what-is-the-exam-in-the-traffic-police.html






Alin Trodden - author of the article, editor
"Hi, I'm Alin Trodden. I write texts, read books, and look for impressions. And I'm not bad at telling you about it. I am always happy to participate in interesting projects."

Comments (0)

This article has no comment, be the first!

Add comment

Related News

Lado Ketskhoveli: the life and death of a revolutionary

Lado Ketskhoveli: the life and death of a revolutionary

Lado Ketskhoveli was one of the most important members of the party in Transcaucasia. He was engaged in printing activities and propaganda among the workers. With him in his youth worked as Joseph Stalin. Ketskhoveli was killed du...

Non-nuclear human cells

Non-nuclear human cells

Everyone knows that the person is eukaryotic. This means that all cells have the organelle, which is all the genetic information, the nucleus. However, there are exceptions. Is there in the human body-cells and what is their value...

The development of the USSR in the period from 1918 to 1928. Comparison: the NEP and war communism (table)

The development of the USSR in the period from 1918 to 1928. Comparison: the NEP and war communism (table)

the First decade of the reign of the Bolsheviks was distinguished by the absence of a strategic political and economic system of governance. We will try to make a qualitative comparison. The NEP and war communism, the table will s...

Methods of teaching psychology

Methods of teaching psychology

Interest in psychology as a science of man, his inner world, personality and problems of the relationship with the external environment has prompted the inclusion of this discipline in all educational programs not only universitie...

Examples of protocooperation in the animal Kingdom, plants and between them

Examples of protocooperation in the animal Kingdom, plants and between them

All living organisms in nature are linked in a variety of connections, called biotic. Their appearance is due to the need to forage, to facilitate the printing and distribution, to eliminate competitors. None of the biotic connect...

The famine in the Volga region in 1921-1922, 1932-1933: causes. Historical facts

The famine in the Volga region in 1921-1922, 1932-1933: causes. Historical facts

the Famine in the Volga region is one of the most tragic events in Russian history of the 20th century. When you read about him, it's hard to believe that it was in reality. It seems that the photos taken at the time - this is foo...