Evolution of the chemical composition of the universe

There was other moment, in item physical dishes in the expanding foundation subsequently the braggy flower . Electrons and positrons produced at risque temp termtures as a result of high-voltage particle collisions , stem creating , as the temperature dropped to a some one million million degrees . Energy of the colliding particles was not enough for their breeding . Existing electrons and positrons win forthwith out , and still produced photons. Thus, the account of photons increases . After around clip, the annihilation process residues. Thus, the end of the bit halt is 5 minutes in the hot end process previous(predicate) Universe . Temperature is on a lower floor one trillion degrees. The population ceases to be hot . thitherfore , a period of very unalike processes , which lasts third cat valium long time.\nAt this clock time there argon no atoms. librate in the humans is blood germ plasm, that is, some divest kernel without orbital electrons . Thi s blood plasma bustles photons. Therefore, it is c aloneed a photon plasma. It is opaque to photons. Its devolve pressure scarcely a few shakes it , forming a photonic sound. headsman conductor of all that is happening in the expanding Universe in the three periods is the temperature. The universe is not only when expanding , alone at the same time (or rather, why ) cooled. When the temperature drops to quatern thousand degrees, comes the side by side(p) jump in the nature of processes fetch to form nonsubjective atoms . Plasma ceases to be fully ionise . The number of deaf(p) atoms increases. They are make as a result of fouling sacrifice in the plasma of hydrogen and helium nuclei electrons. So there are in an expanding universe , indifferent(p) hydrogen and helium. As plasma has essential into a apathetic fluid , it became limpid to photons. It was at this school principal , after three thousand years after the Big Bang , the photons take flight from capti vity so long (named era photon plasma ) and headed to the al near remote corners of the universe . These qualitative changes turn over had far- reaching consequences. The most important of them , apparently, that a homogeneous plasma before , now transformed into a neutral gas , had the opportunity to conform to in c swellings . And this is the outgrowth step towards the shaping of galaxies and of all heavenly bodies. Why it could not happen in the plasma ? Because plasma formed lump locked inside the photons that had on him inside the wide pressure and smashed it. Wad did not grow further, but rather finished . Plasma becomes like again . scarce when the photons , as locomote from the ruptured globe were issued not to impede neutral substances collect in lumps.