Black Hole Mystery

Black hole
Black hole is a widely known concept of the existence and nature of the universe. According to this concept, the black hole is an object in the universe that is so thick or in very small size its mass is so much that its gravitational force does not allow anything to come out of it, even in electromagnetic radiation( The light). In fact, the general gravitational force in this place becomes so high that it crosses all the other balls of the universe. As a result, nothing can escape from this.In the eighteenth century, the existence of black beacon was raised on the basis of the concept of gravitation first.

According to the theory of general relativity, the black hole is a special place in space, from which nothing, even the light can not come out. It is made from a very high density mass. If there is too much mass mass in a small place it can not be in normal condition. We imagine the universe on a flat surface. Think of the universe as a huge piece of cloth and then if you put some heavy objects on the cloth, what will you see?The places where there is heavy material have become a little bent. The same thing happens in the universe. In places where there is a large amount of unimaginable quantity, there are holes in those places. This unmatched mass creates space-time curvature in one place and coils it. The existence of more or less black holes in each galaxy is known. Usually, most of the galaxies are rotating around the center of Krishna Bihara.

The word blackhole means black holes. The reason behind this name is that it absorbs all light rays coming towards it. No light source can come back from the black hole, just like the black object of thermodynamics.
There is no direct sight of the black hole yet, because the light can not be dispersed from it, it is not possible to see it, but we get indirect indication of its presence. The evidence of the existence of black hole is found in the motion and direction of the stars. Observations have been found in astronomical observations for the past 16 years in 2008, with the overwhelming mass of a black hole whose mass is more than 4 million times more than our sun, and it is located in the middle of the galaxy.

History of black hole study:

In a letter written in his letter, in 1783, he told Henry Cavendish, a member of the Royal Society, and a scientist, Henry Cavendish, who first gave the idea that an object with huge mass, which could not escape the gravitational impact of light wave. In 1796, the mathematician Pierre Simon Lapless gave the same concept with his exhibition du système du Monde In the first and second versions of the book. But the following notions have not been conceived in this regard. Such views regarding black hole were neglected in the nineteenth century. Because the massless waves like light could be influenced by how gravitational force could not be understood.

General relativity:

In 1915, Albert Einstein developed his theory of general relativity. Before that, the problem of light motion affecting gravity was proven. A few months later, Carl Schwarzschild discovered a solution of Einstein Field Ecosystem that describes the point mass and the spherical gravitational field.Then the scientist Hendrik Lorenz's student Johannas Drost gave the same solution for freeing the point and published more details about its religion. This solution was a diverse behavior.

Event horizon:

According to general relativity, event horizons have no place on the location-time boundary of an event in which there is no effect on any observer located outside. In general, it can be said to be "the end point of the return" where gravity is so strong that it is not possible to move away from any particle. The event horizon is mainly associated with Krishna Bibar. The light from the event horizon can not reach the external observer.Likewise, the motion of the particles coming out of it seems to be slow and it does not completely cross the horizon, but its red blood circulation over time. The particle does not feel the effect of antioxidants and crosses the horizon at the actual time of a finite value.
There are some more prominent types of horizons, such as the horizon and the apparent horizon, around the black hole. Besides, Kosi horizons and murdered horizons from some more distinct ideas; Photon condensation and argo-space of the strain solution; Cosmological particle horizons and cosmic horizons; Segregated horizons and dynamic horizons are important in the study of black holes. Explosion.

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