What are Black Holes ? Theory & facts

Friends, there are many unsolved mysteries in this infinite universe and scientists are constantly trying to solve them. Black Hole is one such mystery. 

The first thing that comes to mind is what is a black hole? What Is Black Hole In Hindi? So let's try to know "Black Hole Theory Information".

What Is Black Hole ?

When a star completes its life of millions of years, that is, the star dies and its hydrogen is exhausted. After that the star starts cooling, then supernova action takes place in that star.

A very strong gravitational force is exerted around the remnant of that star, which pulls the surrounding matter towards itself, that is, all the matter is compressed and contracts towards a center, then it takes the form of a black dot.

This focal point is like a hole and its size increases continuously. This is called Black Hole. Black holes do not have volume but have infinite density.

Theory Of Black Hole

This concept has been well explained by the Nobel Prize winning Indian scientist Subramaniam Chandrasekhar. According to Indian scientist Subramaniam Chandrasekhar, when a star (whose mass is 1.4 times the solar mass) exhausts its fuel, then it is unable to maintain itself against its own gravity. 

An explosion occurs in that star, which is called a supernova.

Space Time, Event Horizon And Neutron Star Concept

The remnant of the star left after the explosion begins to compress and its density is very high, this star is called a neutron star. The black hole attracts all the planets and stars around it. It even attracts light from its surroundings. 

There is only darkness around a black hole. Even light cannot pass through it.

Time and space get distorted in a black hole, that is, no law of physics works here and time and space end here. Imagine friends if you go to a place where there is never ending time.

The entire mass of a black hole is concentrated at its tiny center point, which is called the "central singularity point". The boundary of a black hole is called the "event horizon". After entering within this limit, nothing can come back, not even light.

Black Hole Discovery

The world was first made aware of Black Holes by Professor John Michell in 1783. His only thoughts were there was no scientific proof. The first black hole discovered was Cygnus X1 in 1972.

Black Hole Theory Information

The "Stellar Mass Black Hole" is formed due to the gravitational shrinkage of any star which is slightly bigger than our Sun and the other is the "Super Massive Black Hole" which is the largest black hole ever discovered in the universe and they are formed by any other star.

It also happens in the middle of the Galaxy. Their mass is millions of times that of our sun and the density is immense and they are huge size black holes.

There is also a third type of black hole, which is called "Primordial Black Hole" and it is believed that these black holes were formed at the time of the origin of the universe and their mass is less than the Sun.

Black holes are invisible, but their gravitational effect is very powerful and it pulls the things around it to itself. 

Therefore, despite the darkness in the middle, the effect of gravitational force is the reason for the presence of black holes. If you don't know what the force of gravity is

Black Holes Facts

1. Should be There is no other speed in the universe faster than the speed of light.

2. According to Einstein, if you fall into a black hole, you will go on falling and it will be an endless journey for you which has no end.

3. In a black hole, you cannot even look back because time and space are destroyed here. None of your wishes will work.

4. Once you have fallen into a black hole, it is impossible to come back, but according to Stephen Hawking, your thoughts can be brought back, your body will definitely perish.

5. On April 10, 2019, a picture of a black hole was taken for the first time in human history by the Event Horizon Telescope.

What is on the other side of the black hole is still a mystery as it is impossible to get across it. It can be crossed only when your speed is faster than light.