2 июля 2015 г.
You needed 22 billion years old
A simple townsfolk, frankly, it would be difficult to understand the conclusions of scientists even in extremely simplified form as a fundamental science operates with arguments like “the Mayan calendar” .
At the heart of the work is the study of the so-called cosmological phenomenon of viscosity. We are not talking about a normal viscosity, inherent in the various things in everyday life, and about its particular cosmological form that describes how a particular gas or liquid resist compression or stretching.
It is believed that if the disperse a compressed fluid to near-light speed, then under certain conditions, part of it can move faster than the speed of light, it is impossible from the point of view of modern physics. Until now, scientists are building a model of the future of the universe, chose to ignore this phenomenon, declaring it immaterial.
In the new study were applied viscosity formula, which allowed for a fresh look at the prospects of the universe.
The Power of “dark energy»
As the new work, the cosmological viscosity helps so-called “dark energy”, the existence of which has been proven recently, accelerate the growth of the universe.
Depending on how the “dark energy” responds to the process of stretching, built two models of the future of the universe – the Big fridge and a big gap. In the first case we are talking about phasing starburst galaxies and decay by reducing the density of the intergalactic medium.
The script Big Rip, to the likelihood that scientists persuaded new research promises a catastrophic scenario – the complete destruction of the universe, up to atoms and elementary particles. According to physics, the viewer suspended if such could be present at the end of the universe, had to see the disintegration of matter up to the extent of applicability of the laws of modern physics of elementary particles.
After 22 billion years will come during the destruction of the atoms of the universe, and everything galaxies, planets, stars and other objects cease to exist even earlier.
From the Big Bang to the Big Rip
The findings, made by physicists as a result of this study, It planned to test models of the universe with the help of supercomputers. In the meantime, until the death of the universe there is still some time, scientists intend to study the tighter nature and properties of “dark matter».
The main modern cosmological theory holds that the universe formed about 13.7 billion years ago in the Big explosion. After the release of the singular state universe continually expands and cools.
There are many different theories of the future of the universe, based on the average density of matter. If the density does not exceed a certain critical value, the universe will expand forever, if the density exceeds the critical value, the process of expansion ever stop and start the reverse phase compression, return to the singular state.
The new study does not promise the universe compression, but also promises a very unpleasant end.
The catastrophe of the second type comes first
The famous science fiction writer Isaac Asimov in 1979 divided the scenario destruction of mankind for five species. The death of the universe, according to Azimov, belongs to the first kind of disaster. This is much more likely to look the fifth type of disaster, such as overpopulation and the depletion of the Earth of its resources, and the fourth type of disaster, such as the destruction of mankind by war or infectious diseases. To live up to the end of the universe and humanity prevent the death of the Sun evolution, related to the second type of disasters.
Currently, the Sun is approximately in the middle of their “way of life” – its age is about 4,57-4,59 billion years. Scientists believe that the period of his life will be 10-12 billion years. Thus, according to astronomers, after 1.1 billion years the Sun will start to change that adversely affect the Earth’s climate. Subsequently, when the Sun will turn into a “red giant”, its expansion will lead to the fact that all the inner planets will be burned in its depths. According to some estimates, the Earth could avoid such a fate, but this will turn into a kind of Mercury and her exactly all living things die.
In any case, all of these processes, as well as the final transformation of the Sun into a white dwarf star with a planetary nebula, completed for many billions of years before the time comes the Big Rip.
Andrew Sidorchik
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