The Big Bang Theory about Universe

In this post I am going to tell you about the big bang theory about universe. As we know Earth is a part of our solar system and the solar system is a part of our Milky Way galaxy. There are innumerable stars and solar families in our Milky Way galaxy. Several galaxies combine to form a super cluster of Galaxies. All the masses of the galaxy are collectively called Universe. In other words, the collective form ranging from micro molecules to giant galaxies is called universe.
Now, lets jump over the big bang theory about universe.

The Big Bang Theory

15 billion years ago, when there was no existence of space and time. When the entire universe was concentrated at an extreme hot and dense point smaller than an atom. The sudden explosion of the point occurred due to excessive concentration. This Cosmic Explosion was called as The Big Bang. Time and space came into existence after this explosion. In a very short period of the explosion (within a nanosecond), the point was enlarged and extended to size of a volleyball which later turned into a fireball whose radius was about 10 billion miles.

FireBall

After the phase of the fireball, when the age of the universe became one second, its temperature decreased and the fundamental particles and antiparticles were formed which later formed the atom. A minute after the explosion, the universe expanded even further into a 'Giant Thermonuclear Reactor'. As a result, the nucleus of helium atom was formed from hydrogen nucleus. [Note- The center of an atom is called the nucleus.] After a few hundred thousand years, a bright mixture of substances and radiation spread. After a few billion years, clouds of hydrogen and helium shrink and begin to form galaxies and stars. About 98% of the composition of the Sun and other stars is made up of hydrogen and helium. The central part of the stars became overheated due to nuclear fusion of matter. Due to which the stars started glowing and heavy materials formed in the center of the stars. About 10.5 billion years after the Big Bang (or 4.5 billion years ago) the solar system evolved in which planets, artificial satellites etc. were formed. Today, galaxies are stored as superclusters.

There is a distance of 100 to 400 million light years between the collection of these galaxies and the space between them is black. Due to the impulse received at the time of its construction, the distance between galaxies is increasing.

World famous physicist Stephen hawking has said in his book 'A Brief History of Time' that the existence of the universe is about 15 billion years ago (13.7 billion years ago according to new discoveries) was in the form of a pea. After this, while supporting the big-bang theory, he writes that the nature of the universe was enlarged by the great explosion and today the same pea-sized universe is infinite and infinite.

An astronomer Edwin Hubble said that the distance between galaxies is increasing. As the distance between galaxies is increasing, the speed of their going away is increasing. We can compare this to a balloon. If we make a few small dots on a balloon, then as the balloon swells, these dots will also get away from each other. Now if the galaxies considered as small dots, then the distance between the galaxies will also increase with the expansion of the balloon i.e. universe. It can also be understood by the doppler effect of light.

Due to the relative speed of the light source and the observer, the change in frequency of light is called 'Doppler Effect in Light'. The speed of stars and galaxies can be estimated by the doppler effect of light.

Spectral lines of elements like hydrogen, helium, sodium etc. are found in the spectrum of light coming from the stars. If a star is moving away from the observer standing on the earth or towards the observer, then its spectral lines of light will migrate towards the red or purple part of the spectrum.

Spectrum

If the spectral lines of the star are displaced towards the red part of the spectrum, it means that the star is moving away from the observer standing on Earth, and if the spectral lines are displaced towards the purple part of the spectrum, then that star is coming towards the observer on Earth.

All galaxies whose spectral lines have been measured have migrated towards the red part of the spectrum. It is clear from this that all galaxies are moving away from our Earth and whole universe is expanding. In this way, if we look back in time, it is known that these galaxies were closer together than today, and about 15 billion years ago, the matter of all the galaxies of the entire universe was centered at a point called the point of singularity. It is said that the explosion of which created the universe and that explosion is called The Big Bang.

This was all about the big bang theory about universe.

The big bang theory was formulated by George Lemaitre for the origin of the universe. Later Robert Begoner presented an explanation of this principle in 1967.

Fundamental Particle – Matter

Fundamental Particles are particles that have no structure, that is, they are not formed by mixing other particles. Earlier scientists believed that atoms are made up of three fundamental particles, namely electrons, protons and neutrons. While today, the number of fundamental particles has gone above 30.

Antiparticle - Antimatter

When two particles meet and destroy each other completely, one of them is called antiparticle for other. Just as the antiparticle of electron is positron, proton is anti-proton and neutron is anti-neutron.

An atom consists of electrons, protons and neutrons. In other words, the matter is composed of electrons, protons and neutrons. The question arises whether positron, anti-proton and anti-neutron together form Anti Matter. So the answer is yes, positron, anti-proton and anti-neutron can together form anti-matter.

Due to this concept, it is believed that in the beginning of the universe two types of substances were made, the first was Matter and the second was Anti-Matter. Both Matter and Anti Matter went together to destroy each other and in the end, due to the high amount of Matter, it was not completely destroyed and that remaining Matter formed our entire universe.

I have told you guys that all I know about the big bang theory about universe. I hope you liked it and do share it with your friends if you really liked the this post on the big bang theory about universe.
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