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According to scientists, it is likely that the Kerr black hole connects two worlds, but this is only a speculation! The details need to be verified!
All stars rotate and are therefore not strictly spherical, but change slightly at the poles, so that the gravitational collapse of a real star cannot be accurately described by the Schwarzschild solution of spherical symmetry. In fact, the geometry of space-time around a star will become quite complex due to the generation of gravitational waves.
Why do gravitational waves disrupt geometry? The reason is simple: the gravitational field of all moving matter, such as a rotating star, changes with time.
As a result, the curvature of space-time caused by gravity changes at each moment to reflect the new material structure. This readjustment is like one"Wrinkles", propagating in the background geometry at the speed of light.
The collapsing star with the worst spherical symmetry emits the most gravitational waves. Once the event horizon is formed and the star collapses into a black hole, the situation is immediately simplified. At the moment when the horizon is formed, it may still be irregular in shape and exhibit violent vibrations, but in less than 1 second, the gravitational waves will erase all irregularities.
The event horizon then stops vibrating and becomes a single, smooth shape, an ellipsoid with the poles flattened by centrifugal force.
This is why the gravitational field of a rotating star scaled into a black hole will eventually reach an equilibrium state that relies on only two parameters, mass and angular momentum, which characterize the rotation of the star, similar to the spin of elementary particles. <>
Based on the Schwarzschild solution, Kerr rotated the black hole model, resulting in the black hole described by the Kerr solution. Don't underestimate this rotation, under the strong gravitational pull of the black hole, it is necessary to consider not only the centrifugal phenomenon caused by the rotation, but also the drag of the black hole on the outer space-time, the disturbance of the internal space-time, and the corresponding changes in the structure of the black hole and the resulting effects. As a result, the structure of a Kerr black hole is much more complex than that of a Schwarzschild black hole.
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The images of the stars we see are basically virtual images, and the exact position of the black hole is not visible to us, and there is no event horizon. The data of the universe is estimated to be large, and the accuracy will not be until after the human race is highly developed.
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The main reason why people can't see black holes is that people can't make such devices at all. My understanding is that the interaction of forces is done by the mutual interference of waves, not by emitting some solid matter.
The formation of the interaction mode of microscopic particles, that is, the formation of waves is caused by the regular movement of magnetic particles, people know that the degree of interference between waves of different frequencies and wavelengths is different, some interfere, some do not interfere, then the problem comes, people know that the smallest unit that makes up the world of matter is the atom, the wave emitted at the atomic level is caused by the regular motion of the magnetic particles that compose it, and the wave emitted by the magnetic particles that are smaller than the magnetic particles that make up the atom are in the state of existence, It doesn't interfere with the waves emitted by devices that people can build, which is why people can't observe black holes.
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The event horizon of a black hole is the closed boundary of a black hole, and all matter outside the boundary, including light and radiation, can be sucked into the boundary, but the contents of the boundary cannot come out. And it's also the tipping point at which information can be transmitted before entering a black hole, and what happens inside this boundary cannot be observed outside the boundary. And scientists usually sayThe size of a black hole is actually the size of the black hole horizon interface.
When an object approaches its event horizon, witnesses will see that the thing turns red and darkened as the black hole's gravitational pull distorts the light emitted by the thing itselfOnce in the horizon, things will fade into an invisible state。In the event horizon, one will find the singularity of the black hole, and previous studies have suggested that all the mass of the black hole collapses into this singularity of infinite density, which also means that the spatial and temporal structure around the singularity is also bent to an infinite degree, so near the singularity, the laws of physics as we know it are completely useless.
The diameter of the event horizon depends on the mass of the black hole, and the gravitational force of the black hole depends on the distance from the black hole. Black holes are usually rotating, resulting in an elliptical event horizon of a rotating black hole, with flattened squeezing at the poles and expansion at the equator.
The event horizon of a rotating black hole is divided into an outer and inner horizon. The outer event horizon of such a black hole is a tipping point, like the event horizon of a non-rotating black hole; In the internal horizon of a rotating black hole, cause no longer necessarily precedes effect, and the past no longer necessarily determines the future. In a non-rotating black hole, the inner and outer horizons coincide.
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It should be the light around the black hole that wants to escape but can't escape, and merges around the black hole to form a horizon.
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It just so happens that my undergraduate graduation is**black hole solution, that is, the event horizon range of the black hole, which refers to the fact that there is a boundary between what we can observe and what we can't observe, the size of this range is the event horizon, the black hole itself is not large, a singularity, the event horizon is also divided into two inside and outside, and there is a wireless redshift surface outside the outer horizon, and anyone who is in the infinite redshift plane has the possibility of being sucked in.
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There should be a lot of space attraction that we can't think of now, and it's what we want to go to even more.
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It's just some light and radiation, and I can't really see it clearly, and it feels like a bottomless pit.
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I think the world station, literally, Sister ID is a big visual meaning, and then there are a lot of things you don't know to discover slowly.
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It should be like the earth and other planets, surrounded by gases composed of some microelements, I don't know.
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I think the event horizon around the black hole must be very large, and there are a lot of unknown things in it.
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I feel that the horizon is the meaning of big vision, that is, there are many things that you don't know that you need to discover slowly.
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The event horizon refers to the physical boundaries of a black hole. () Qing Qian.
a.Zheng Hongqin is true.
b.Wrong answers.
Correct Answer: a
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Introduction: We will know that the space of the universe is very large, and the space of the universe is vast, so there will be a kind of black hole, so do you know what some of the so-called black holes in the universe are? What would you think? Let's talk about it together.
<>We know that the universe is very big, so black holes are very far away from people, don't worry, because they don't endanger humans and they don't endanger the earth where humans live. We can also find that some black holes are a very mysterious existence in the universe, which is more fascinating, and many people want to explore the mystery of black holes, and the mysteries in black holes are more scientists want to study it. And the black hole is more magical, many people can't explore some of the mysteries inside, it may be very mysterious, it may also be very scary, and we must know that the gravitational force in the black hole is greater than that of the average planet, and it will be greater than the gravitational force of the earth, so when the black hole appears on the earth, it may endanger people's lives.
In fact, the black hole in the universe is a kind of celestial body, this kind of celestial body will only allow some matter and some radiation to enter, and it will not allow other matter or some special matter to leave some boundaries, its gravitational attraction exists, and it is relatively large. We generally say that a cosmic black hole, but it is not actually a hole, it is a magical force, and it will have a starting point of mass, there will be a huge mass in it, and its gravity and inertia are without some energy, there can be no energy conversion between them, so there can be no existence of some energy. For the exploration of the universe, many scientists have given their own reasonable conjectures, but after all, it is only a conjecture, no one can solve the cosmic black hole funds, and no one has explored his real mysteries, which requires further efforts from scientists.
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Introduction: Since the first black hole of mankind was photographed, many people have felt very amazed, and the existence of black holes also explains a lot of physical phenomena, what is the so-called black hole in the universe? In fact, there are many planets in the universe, and some planets are like the earth, which are stable spheres.
And some planets are not only stable spheres, but also glow and heat are called stars. Stars are in constant motion both inside and outside, and when the internal movement is violent, or when life is coming to an end, these supermassive planets can collapse. But in this process, due to the fusion and fission of the atoms, a huge amount of energy is generated, and at this time there may be a huge mass.
In this way, the supermassive mass is too large for the universe to bear, so in the process, the planet begins to collapse inward from the originally fixed sphere, and the collapse becomes more and more obvious, so that a black hole is formed. The mass of a black hole is very, very large, so when something approaches a black hole, it can't escape, and even light can't escape from the black hole because light can't escape it, so the black hole looks black. So black holes in the universe are just a form of planetary change, and black holes sometimes exist for a short time, so they are difficult to capture.
In fact, not only the physics in the universe, but also the physics in life, which is of great help to the progress of human science and civilization. It was because of the discovery of gravity that people gradually understood how to get rid of gravity, and indirectly triggered the thinking of spaceships. And it is because of the discovery of telescopes that people can observe beautiful stars, and they can observe their own planets tens of billions of light-years away.
Therefore, the role of physical research in life is very large, but it will take a long time for these physical studies to go from theoretical discovery to real practice, so it also requires the efforts of many scientists.
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Black holes have always been a mystery in the universe, and there are still too many secrets in the vast universe that we need to continue to explore before we can know. A black hole is a hyperspace substance.
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My opinion is that black holes can swallow a lot of things, and they can also swallow some asteroids, and the losses caused by black holes are very large, and black holes may lead to the destruction of some planets.
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The meaning of black holes is very wide, black holes are far away from our lives, the principle of black holes is just a conjecture of scientists, without making a complete argument, black holes have very little light, and there are no luminous celestial bodies in them.
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My opinion is that black holes in the universe are very vast, and there are many unexplained phenomena that need to be studied deeply.
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As far as I know, the term "event horizon" refers to the boundary within which an event is observed. The black hole** to be released at 9 o'clock tonight is technically just a scene outside the horizon of a black hole, and the scene inside the event horizon is still impossible to observe.
Earth first. 1. The second cosmic velocity may have been heard of by everyone, due to the curvature of space-time formed by the gravitational pull of the earth, the spacecraft can only be in space for a long time by reaching these speeds. The gravitational pull of a celestial body like a black hole is even larger, and there are also a large number of celestial bodies and materials orbiting around it, and it can be calculated through theory that a black hole is a celestial body that escapes faster than the speed of light, not because the black hole can absorb light, but because of the significant space-time curvature caused by it, the light in the event horizon cannot escape, so it is difficult to observe.
Another characteristic of gravity is that it shrinks with increasing distance, although the gravitational force of black holes is large, the range of influence is also limited, and the boundary between what can be seen and what is not visible in black holes is the event horizon.
The black hole observed this time is a scene outside the event horizon. According to existing theories, due to the huge gravitational attraction of the black hole, the space-time curvature formed by the black hole is very significant, and the surrounding celestial bodies and matter will rotate along the space-time curvature formed by the black hole and fall towards the most central black hole. Because the gravitational pull of the black hole is very huge, when the matter is close to it, it has been constantly torn apart, drifting towards the black hole, gravitational tearing and pressure and other factors, so that the matter will undergo a more violent energy release process than in the star, because it has not yet entered the horizon range, this energy release process is theoretically observable.
The black hole observed this time is a scene outside the event horizon. According to existing theories, due to the huge gravitational attraction of the black hole, the space-time curvature formed by the black hole is very significant, and the surrounding celestial bodies and matter will rotate along the space-time curvature formed by the black hole and fall towards the most central black hole. Because the gravitational pull of the black hole is very huge, when the matter is close to it, it has been constantly torn apart, drifting towards the black hole, gravitational tearing and pressure and other factors, so that the matter will undergo a more violent energy release process than in the star, because it has not yet entered the horizon range, this energy release process is theoretically observable.
Previously, humans could not observe directly because the black hole was too far away from the earth, and the signal was difficult to capture due to the barrier of layers of celestial bodies.
The area where a black hole devours matter and releases energy is known as an "accretion disk". And the black hole itself is not completely "only eat but not pull", there may also be Hawking radiation and other energy release phenomena, scientists believe that the Milky Way's wide range of jets may be related to the Milky Way's black hole.
Personally, I think that it is necessary to distinguish between black holes and singularities first. >>>More
The creation of black holes is similar to that of neutron stars; The core of the star shrinks rapidly under its own weight and becomes strong**. When all the matter in the core turns into neutrons, the contraction process immediately stops and is compressed into a dense planet. But in the case of black holes, because the mass of the star's core is so large that the contraction process goes on endlessly, the neutrons themselves are crushed into powder by the attraction of the squeezing gravity itself, leaving behind a matter of unimaginably high density. >>>More
After the death of a supermassive star (supernova**), it becomes a white dwarf and further collapses into a neutron star (pulsar), and because the mass is too huge (greater than or equal to 10 solar mass m days, I can't remember if it is 10 >), the neutron star cannot resist the constraints of gravity and collapses violently again (implosion), and finally forms a black hole (black hole) that even light cannot escape!
Let me tell you a little bit:
Actually, a black hole, it's not a hole. It is a lost planet (or nebula), due to the intense planet**, the instantaneous extremely high energy causes the planet to expand and contract for a short time! (I don't know much about the process). >>>More
There is a strange celestial body in the universe, its gravitational pull is so strong that even the fastest light can't escape from it, so people can't see it, and call it a black hole. >>>More