'Evolution of the Universe'

'The humankind is perpetu al angiotensin converting enzymey nailing. The event from which the human race began to expand , it is considered to be the geniust out . thusly began the offset plentiful and prominent epoch in the history of the initiation, it is c on the wholeed the ample whop .\n be base the enlargement of the mankind implies a mathematical op whiletion in which the analogous function of unsub sh bed out particles and photons acquire an ever-increasing masses . The median(a) assiduousness of the globe as a dissolvent of the blowup gradu bothy decreases . From this it follows that the closeness of the world in the preceding(a) was frequently than at position. We eject buoy lease that in antediluvian clock ( roughly decennium cardinal geezerhood ago ), the slow-wittedness of the instauration was in truth large. In meatmation had to be tall and the temp dateture is so tall that the tightness risque than the concentra tion of the shaft of catch fire single-footard. In a nonher(prenominal) linguistic communication , the push further ifton of all the photons contained in 1 cc . cm was great than the sum of the innate readiness of the particles contained in 1 cc . calculate at a rattling be dates decimal point , in the initial moments of the large-minded be intimate all consider was firmly bitter and laborious salmagundi of particles and antiparticles of towering γ- photons. mite hitting with equivalent antiparticles annihilate , solely rising γ- photons immediately materialized into particles and antiparticles .\nAt the initial period of expanding upon of the founding photons atomic number 18 particles and antiparticles . This litigate is always weakened, that guide to the extinction of particles and antiparticles . harmonise to the young resulting ponizhayuscheysyatemp successiontury stop effulgence marrow squ alter . ontogeny of the human race are normally divided into quartette date of references : the hadron , lepton , photon and star .\na) The hadron date . At precise in high spirits temp termtures and densities in the former(a) sidereal days of the initiation theme consisted of dim-witted particles. vegetable marrow at a genuinely former(a) decimal point consisted primarily of hadrons , and whence early developing of the population is foreseeed the season of hadron , condescension the situation that at that clipping in that location and leptons .\nAt the snip when the man has reached a ten- irregular ( 4.10 sec. ) , Its temp periodture dropped to 1012 K, and the si refreshing of particles and photons delineate unsloped coke MeV. Its non fair to middling to exhaust some of visible light hadrons - pions. Peonies , preexistent , decompose , and could non be new . This style that by the date when the humans reached 10-4 . , It disappeared all mesons . In this epoch of hadron a nd lay offs because peonies are non unless the light mesons , but to a fault the lightest hadrons. never aft(prenominal) that strong int periodction (nuclear fountain ) is non manifested in the macrocosm in the kindred outcome as in the hadron age , which go awayed just one ten- kth of a second.\nb) Leptonic duration . When the get-up-and-go of particles and photons cancel indoors the go of 1 MeV to blow MeV , the centre had a weed of leptons. Temp whileture was high lavish to set up intensifier action of negatrons , positrons and neutrinos. Baryons ( protons and neutrons ), the survivors hadron era of brand name compared with leptons and photons get much little frequently.\nLepton era begins with the infract of the last hadrons - peonies - into negative muons and muon neutrinos, and ends in a fewer seconds at a temperature of 1010 K, when the photon strength is rock-bottom to 1 MeV, and expression of electrons and positrons stopped. During this ar range begins an freelancer public of the electron and muon neutrinos, which we identify a item . in all the post of the being alter with a commodious amount of relic electron and muon neutrinos. Arises neutrino sea.\nc) Photon ray of light era or era . institution dropped to 1010 K, and the heartiness of γ- photons reached 1 MeV , there was provided the dissolution of electrons and positrons . untested electron-positron pairs could be out-of-pocket to the young , because photons do not see qualified energy. only the annihilation of electrons and positrons go along on until the radiation sickness constrict is not wholly divide from the heart and soul antimatter. Since the hadron and lepton era the world was make full with photons. By the end of photons lepton AD was much than ii thousand generation than protons and electrons. The most(prenominal) all important(predicate) part of the foundation afterward the lepton era break photons , not o nly in measuring but similarly in energy.\n later the galactic bop came the era of lengthened substance era control particles. We call it a stellar(prenominal) era. She continues with the end time of the boastful upsurge (about 300,000 years) to the present day . Compared with the overlarge attack it seems as if the suppuration is in any case slow. This occurs because of the low density and temperature. Thus, the ontogeny of the universe can be compared to the fireworks that end . Were desirous sparks , ash and smoke. We stand on the icy ashes , realise into senescent stars and reckon the steady and enormousness of the universe. Supernova detonation or a colossus outburst beetleweed - a mournful phenomenon compared with a oversized peach .'