The basic properties of the law of black holes, the content of the law of black holes

Black holes are not difficult to understand. To put it simply, it is a celestial body with a very large mass and almost no volume. Its gravitational pull can draw in all objects within a critical range around it, and even light is no exception.

Black holes are the collapsed remnants of giant stars (at least 30 times the mass of the Sun).

Stars are very massive stars that emit light and heat. They release energy because they are undergoing a violent nuclear reaction. It is also because of this "**" that they maintain a large volume.

And any reaction is like burning, and there will always be a day when the fuel will be burned out. Nuclear reactions are no exception. When the fuel burns out, it "goes out".

At this time, due to its huge mass, according to the gravitational force, it begins to "collapse" under the action of the corresponding huge gravitational force. All the substance is squeezed towards the center. The density of the centers is increasing.

In the end, the atoms of matter were also crushed. It is further compressed. Due to the different masses of the stars, the gravitational force is of different magnitude.

The end result is not the same.

A star of mass like the Sun eventually crushes the atoms. Pressed the nuclei together. Such a stellar "remnant" is a white dwarf.

If a star as large as the mass of the Sun is 10 times. Eventually, gravity crushes the nucleus. And squeeze the neutrons together. Such a neutron star is called.

No matter how big it is. Like stars with more than 30 times the mass of the Sun. Finally, all the elementary particles are crushed. It became a "quark paste", a "point" with almost no volume. This is the mysterious black hole that can suck in anything, including light.

In layman's terms, black holes are not black and are not holes, but the name black hole is very vivid, and it reflects some of the superficial properties of this celestial body.

First of all, black. Black holes are formed by the collapse of massive stars, so why do stars collapse? Because there are two forces inside the star, one is the expansion force of the thermonuclear reaction to shine and heat, and the other is the gravitational force, and at the end of the star, because the fuel is less, the heat is also less, the expansion force becomes smaller, and the gravitational force prevails, so the star collapses and becomes smaller.

After the collapse, there will be an equilibrium point, and the gravitational force will balance the expansion force again, which is the small star will be stable, and the fuel will be enough for him (although much less than the original), so the black hole is not black, and he still emits light.

So why is he black? It's because we can't see it, and we call it black what we can't see. The gravitational pull of small stars is super strong, and the people are small and big.

The light he emitted himself couldn't escape from the palm of his hand, and he took it back, so a light reentry area was formed near the small star, and all the light in this area was captured and retracted by the star, so we can't see the light emitted by the black hole itself, and astronomical observations naturally can't see him, so the black hole is surnamed "black".

As for the hole, as mentioned above, the reentry zone, which we call the "horizon", is the field of vision, once we enter, we will fall infinitely until we reach the singularity (that is, the little star), is it a bit like a hole?

As for connecting the two worlds, it's easy to understand, the gravitational pull of a black hole is so great that it is possible to fold the flat universe (as you might as well understand it this way) like a folded paper, so the top and bottom of the folded paper are not long connected?

When an object is massive enough, light (photons) cannot escape from its surface, and the object cannot be seen when observed, which is my superficial understanding, you can check other more detailed explanations.

At present, the explanations of black holes are only at the level of theoretical inference.

My theory is that the phenomenon of a black hole is a phenomenon in itself, not a real substance, but a hole connecting two spaces.

A small celestial body with supermassive mass.

It's really easy to understand! ）

The universe is vast and infinite, boundless, beginningless, and endless. At present, the universe as human cognition is limited to the theory of the formation of the "universe **". The center of the big ** is the "black hole", after the big ** the universe begins to expand around, after the end of the universe expansion, the black hole begins to shrink, and absorbs all the stars in the universe, matter, including light, in the center of the universe to gather and squeeze.

Eventually, a new "big **" occurs, giving rise to the new and the universe. And in this way it will loop forever and infinitely.

In order to solve the mystery of the universe, the mystery of black holes will require continuous research and exploration and discovery by human beings in the future.

Hello classmates, I think black holes don't follow this law, because there are many anomalies in the universe, well, we can't explain it at the moment, thank you.

Not followed. When the two black holes merge, the total mass decreases and is emitted as gravitational waves.

Not to follow, because he is not a chemical change.

Glad for your question. Yes.

The Four Laws of Thermodynamics:

Law Zero: If two systems are in thermal equilibrium with one system, then the two systems are in thermal equilibrium with each other.

The first law: du=dw+dq

Second Law: The entropy of isolated systems does not decrease over time.

The third law: it is impossible to reach absolute zero in finite steps.

The Four Laws of Black Hole Mechanics:

Law Zero: The gravitational force on the surface of a steady-state black hole is constant.

First Law: DM=K8 DA+ DJ+VDQ (Natural Unit System C=G=H Bar=1).

Where, m, k, a, j, v, and q are the mass (energy), surface gravity, surface area, rotational angular velocity, angular momentum, surface electrostatic potential, and charge, respectively.

Analogy: du=tds+ dj+vdq

where u, t, s, , j, v, q are the internal energy, temperature, entropy, angular velocity, angular momentum, surface electrostatic potential, and charge, respectively.

The second law: the area of a black hole does not decrease over time.

The third law: it is impossible to reduce the surface gravity to 0 in a finite step (to reach an extreme black hole, i.e., to produce a bare singularity).

A black hole is a very dense and very small celestial body in the universe in modern general relativity.

Black holes are typically created by the gravitational collapse of a massive enough star after it runs out of fuel for a nuclear fusion reaction and dies.

In 1916, the German astronomer Carl Schwarzschild calculated a solution to Einstein's gravitational field equation, which showed that if a large amount of matter is concentrated in a point in space, a strange phenomenon will occur around it, that is, there is an interface around the particle point - the "event horizon". The gravitational pull of a black hole is so strong that once it enters this interface, not even light can escape. This "incredible celestial body" was named a "black hole" by the American physicist John Wheeler.

Black holes have the following properties:

1. The escape velocity in the event horizon is greater than the speed of light.

2. Black holes cannot be directly observed, but their existence and mass can be known through their influence on other things.

3. A black hole can be located by its mass, energy, and rotation (angular momentum).

Fourth, the mass of a black hole can be reduced by quantum evaporation.

Scientists used Einstein's general theory of relativity to predict a celestial body called a "black hole".

Black holes were first calculated by German mathematician Carl Schwarzschild, in the black hole around anything whether it is signal, light or matter can not escape, space-time here has become a bottomless pit, such a place that cannot be seen, touched or detected is called a black hole.

A black hole, black, indicates that it does not emit or reflect any light electromagnetic waves to the outside world. The cave is anything that once it enters its borders, it will not want to slip out again.

The huge gravitational pull of a black hole will suck everything around it in, so it is a "bottomless pit". And any object, whether it is a person, an animal, a train, or a car, once it falls into a black hole, it is destroyed by the gravitational field inside the black hole. There is no structure of matter of any kind inside a black hole.

Black holes differ only in mass, charge rotation, and nothing else.