There are many theories active how the world started, or was created. One of these theories is the Big Bang. According to the theory, it is tell that the world originated about 10000 and 20000 millions of long time before, and since then it has beingness expanded. This was discovered by the Georges Lemaitre on 1927, and later in 1948 it was amend by a Russian, George Gamow. He stated that, the universe was created on a big explosion from a cosmic egg, that cryptically existed, which was composed of subatomic particles and radiation. It is said that the different elements we now brace were produced during the first minutes after the Big Bang, when the temperature was extremely lavishly and universes high density fusion subatomic particles on chemical elements. It has being calculated that heat content and helium were the primary products of the Big Bang, and that the heavier elements were produced later in the stars.
Because of the high density, the way out first existent expanded really quickly, and because of this, helium and hydrogen got cooled and condensate into galaxies and stars, this explains the expansion of the universe.
At the beginning there was no oxygen, no nitrogen, phosphorus, carbon, nor other element. Universe was essentially composed from hydrogen gas. Later these gas molecules began to expand due to the gravitational attraction, and started to take billions of stars, which made up the million galaxies on the universe. Our solar system of rules was made up about five thousand millions of years ago, from a dust cloud and gas from the oldest stars that had exploted.If you want to get in a full essay, order it on our website: Orderessay
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