How big is the age of the Universe and on the basis of what data is it determined? Detailed answer

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How big is the age of the Universe and on the basis of what data is it determined? Detailed answer

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How big is the age of the Universe and on the basis of what data is it determined?

In 2003, with the help of a space probe launched by NASA (US National Aeronautics and Space Administration), equipped with special equipment, measurements of the temperature of the background microwave (CMB) radiation were carried out with an accuracy of a millionth of a degree.

The results of these measurements made it possible to establish that the age of the universe is 13,7 billion years and that the formation of the first generation of stars began 200 million years after the Big Bang.

Author: Kondrashov A.P.

Random interesting fact from the Great Encyclopedia:

What disease do British doctors have to deal with most often?

a) colds.
b) Ear infections.
c) depression.
d) Sleep disorders.

The most common disease that British doctors have to deal with is depression, which is the fourth most common disease in the world - after pneumonia/bronchitis, diarrhea and HIV/AIDS (WHO, 1999).

According to doctors, every year up to 10% of women and 3-5% of men suffer from clinical (that is, severe) depression.

Approximately 3,2 million people in Britain (7%) are diagnosed with clinical depression, and every day the situation is getting worse and worse. Between 1990 and 2000, the number of prescriptions for all kinds of antidepressant drugs issued by doctors in the United Kingdom rose by more than ten million.

According to experts, depression costs the British economy £8 billion a year - through sick leave, medical costs, suicide and lost productivity - the equivalent of £160 a year for every man, woman and child.

And it's not just the climate or inherent British miserabilism: at one time or another, up to 25 million Americans (9%) suffer from clinical depression. In Australia, even children as young as five are treated for depression.

In Bangladesh, the most common disease is without a doubt diarrhoea, followed by worms. At the same time, depression (especially among women) is quite widespread - about 3% of the country's population suffers from it.

In Africa, where HIV and malaria are the first and second most common diseases, depression ranks eleventh. In most Third World countries, which are culturally highly suspicious of insanity, depression is difficult to diagnose and, unlike in Western countries, the symptoms are more physical than mental.

Test your knowledge! Did you know...

▪ What is skin?

▪ How long have pets been around?

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Random news from the Archive

Oxygen found in a distant galaxy 26.06.2016

At a distance of 13,1 billion light years from Earth, astrophysicists from Japan, Sweden, Great Britain and Germany have found a galaxy in which the relative proportion of oxygen is only ten times less than that of the Sun.

Galaxy SXDF-NB1006-2 was discovered in 2012 by the Subaru telescope, part of the National Astronomical Observatory of Japan (NAOJ). Scientists recorded the emission from hydrogen, and subsequent observations made using the Chilean observatory ALMA (Atacama Large Millimeter Array) made it possible to learn more about the galaxy.

The galaxy, at a distance of 13,1 billion light-years from Earth, is not only the most distant known to date, but also the only one containing a relatively large amount of oxygen: ten times less than that of the Sun. At the same time, there is no cosmic dust there, which can be explained by the explosion of a supernova, or by the absence of cold dense clouds in the interstellar medium.

A detailed study of SXDF-NB1006?2 makes it possible to expand knowledge about the period of the development of the Universe, which lasted from 0,38 to 550 million years after the Big Bang. It has the name "Dark Ages": at that time there were no stars, quasars and other bright sources; The universe was filled with relic radiation, radiation of atomic hydrogen at a wavelength of 21 cm, hydrogen and helium.

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