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elte.hu |
Principle of birth of the universe: -
The universe is born due to a great explosion. About twelve to fourteen billion years ago the entire universe was highly compressed as an atomic unit. At that time no such thing as time and space existed. About 13.4 billion years ago, this explosion triggered the release of excessive energy and the explosion became twice as large every 10-24 seconds. This energy was so high that the universe continues to spread till today. 3 million years after this explosion, the entire universe was filled with clouds of hydrogen and helium gas. 3 lakh 80 thousand years after this explosion, only photons remained in space. These photons gave birth to stars and galaxies, and later planets and our Earth were born. This is the principle of the big bang.Rendering of the great explosion theory: -
The modern physicist Georges Lemaître in 1927 proposed the big-bang theory with reference to the creation of the universe. By this theory, he claimed that the universe was first to have a very large and heavy sphere in which after a time a very massive explosion took place and the pieces from this explosion went into space and slowly took the form of stars and planets. His theory was based on Albert Einstein's famous general theory of relativism. But this theory was unheard of by critics at that time.![]() |
phys.org |
Another possibility was Fred Hoyle's steady-state model, which always presented the origin of new materials in the midst of distant galaxies. In other words, after the sky-sky moves away from each other, new material is created on the empty space that is created there. According to this possibility, the universe has been and will remain the same at all times. Hoyle was the one who mocked Lemaitre's great blast theory and named it "Big Bang Idia".
For a long time, scientists remained divided between these two theories. But over time scientific experiments and observations have bolstered the theory of the Great Blast. After 1965 the discovery of Cosmic Microwave Radiation got the status of the most recognized theory. Currently, every law of astronomy is based on this principle and is an extension of this theory.
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