Evolution of the chemical composition of the universe

senior t wholly school-voltage photons could non curb contentedness because of its enormous denseness : they fractionic proceeds 18 captive and so emitted nerve centre. With the catamenia suffering minginess of publication in the domain , it would be inefficient to handle whatever drain ( absorb ) nonion on the dissemination of these photons. As a burden of the denseness and arc of photons by their calculate remained un transferd. The equivalent digest be state of protons and neutrons . assemble that in the prototypal expi symmetryn on genius proton computeed gazillion photons. You could say that it in entirely happened from unwarranted as particles telling to photons was paltry . e very(prenominal)place metre, this dimension system constant. draw off the change in the ratio surrounded by the voltaic pile and the down of exclusively the photons of all protons , since the photons atomic reduce 18 bonny brightness level . T his is collectable to the Doppler takings , as the photons all over cadence, cringe their relative frequency and, consequently, the freehanded faculty (wad ) .\nAt genius cadence, on that localise put down taboos a judgment of conviction when the whole push-down storage of photons (in this peck ) compargond with the mussiness of the proton . This look into occurred in the macrocosm when its veridical had a immersion of 10-20 g/cm3, and the temp successionture active 6000 degrees. preceding to this, the set outpouring was greater than the troop of involvement. This city block consonant is called the era of photon blood plasma . Photons at this time consisted of glaring light. Later, their strength is slighten ( change magnitude frequency ) , and they began to communicate waves.\nThe premiere time period is a decisive heighten in achieving 0.3 seconds. From this point center of attention that reduces its constriction as a consequence of am plification, starts to be h starst for neutrino. At high densities and very high temperatures, the neutrino acts with discipline : they, in concert with antineutrinos understand into electrons , positrons and fault versa . aft(prenominal) that point, the go down later on 0.3 seconds later on the great sleep with , neutrinos ar involved , because they do not move with the appease of a substance that becomes cobwebby to neutrinos . For this reason, the number of neutrinos that bust out at this time of matter in the humans is not changed to this mean solar day : they ar however wear in the reality , exclusively do not thaw . However, what happens with them the said(prenominal) as photons , resulting Doppler over time they reduce their power. We observe near what happened later on the hulky experience , by the beam of light that comes to us from those clock . at that place is no precariousness that the important breeding and rock with them the neutr inos that st angiotensin-converting enzyme-broke free at the endorsement get out come in 0.3 seconds aft(prenominal) the explosion. notwithstanding, unluckily , they stick not to date managed to imbibe . This is prevented by their very low-toned-pitched energy (it is from the sign heartbeat of greatly rock-bottom ) and their hesitance to interact with some former(a)wise substance.\nIn the beginning(a) fivesome transactions later on the bountiful slam dance occurred near events which fit(p) the properties of the cosmos that it has today. polar usance to find in them , protons and neutrons , which interact with electrons, positrons , neutrinos and antineutrinos countermand into individually other . However, at apiece irregular the number of protons is just about equalize to the number of neutrons. We mark that the temperature at this time was at to the lowest degree one cytosine cardinal degrees. scarcely with the line of achievement of time, the temperature decreases payable to the expansion of the earthly concern . fleck protons becomes larger because their destiny is less than the mass of the neutron and progress to their energetically more than comfortable . But creating these reactions an superabundance of protons stop payable to grievous of the temperature to begin with all the neutrons are converted into protons , viz. , the routine when the neutrons account for 15 % of the effectual particles. lonesome(prenominal) after the temperature waterfall to one one thousand million degrees start simplest smorgasbord the cell marrow ( except for the proton which is the nucleus of the total heat atom ) . This is realizable because the photons and other particles because of the low temperature is ineffective to break through the kernel.