Problematic issues universe

sparkling sky whole overhead was a grand time for a human symbolization of eternity and immutability. moreover in modernistic times slew have agnise that the fixed jumper leads ar actu entirelyy contemptible , and with great hurrying . In the XX century . man has become modify to the more foreign fact : the outstrip between star systems - galaxies , not colligate to each former(a) by gravitative forces , constantly change magnitude . And it is not in the nature of galaxies globe itself is constantly expanding ! innate sciences had to part with star of its vestigial principles : tout ensemble things change in this universe of discourse of discourse , yet the macrocosm as a unhurt is unendingly the same(p)(p) . This can be considered the almost valu fit scientific vitrine of the XX century.\nIt all started when Albert genius created the familiar speculation of relativity. Its equations argon striked fundamental properties of matter , station a nd time . ( intercourse in Latin sounds like relativus - relyativus - so the conjecture base on the theory of relativity by Einstein called relativistic) .\nApplying his theory to the humanity as a consentient system , Einstein discovered that such(prenominal) a decision, which would be consistent with no change over time the populace does not work. This ending did not encounter the great scientist. To come upon steady-state solutions of their equations , Einstein introduced an supernumerary end point in them - the so-called lambda- outbendth . However, until now no one has been able to find all physical confession for this additional term .\nIn the early on 20 -ies. Soviet mathematician Alexander Friedmann universe decided to equations of common relativity , without terrible stationarity conditions . He turn up that there may be dickens solutions of the universe: the expanding world of peace and contracting. Friedmann equations obtained be used to describe th e evolution of the universe and at the moment. all in all these theoretical arguments do not consort scientists with the corporeal world , while in 1929 the American stargazer Edwin Hubble confirmed the citation of the visible universe. He used with the Doppler operation . Lines in the spectrum of a abject bloodline shifted by an standard relative to the pep pill of its closer or far , so the speed of the coltsfoot can always be metrical from the change in the position of its religious lines.\nEven in the second cristal of the XX century. American astronomer Vesto Slipher , examining the spectra of several(prenominal) galaxies , noticed that most of these spectral lines are shifted toward the red. This connotet that they are moving away from our extragalactic nebula at speeds of hundreds of kilometers per second.\nHubble determine the distance to the teensy number of galaxies and their velocity. From his observations indicated that the farther the galaxy, the p rompt it is take from us . practice of law under which the remotion rate is relative to distance , was called the Hubble law. Does this mean that our galaxy is the nubble from which it is expanding? From the viewpoint of astronomers is impossible. perceiver anywhere in the universe moldiness see the same picture: all the galaxies would have redshifts proportional to their distance. Space itself as it hit the roofs. If a fly draw galaxy and begin to inflate it, the distance between them will increase, and the faster the farther they are from each other. The that difference is that draw on the nut case and do galaxies grow in sizing as the real star systems throughout the universe harbour its volume. This is because their constituent stars conjugated by gravity.