The gravitational field produced by objects with enormous mass stems from its "structural" bending of the surrounding space-time, which manifests itself in the "isochronous affine set" of four-dimensional space-time no longer straightening, just as a heavy object pressing on the surface of a trampoline bends it. This last analogy is called the "rubber film analogy," and it is a more common analogy.
The mass of a black "hole" is so concentrated that it "stretches the rubber film" to infinity below, which is the result of theoretical calculations and "tears open a hole" here. At the event horizon, space-time has been stretched to the point where it was originally perpendicular, and has remained perpendicular ever since. If something falls into a black hole, then as long as it passes through the event horizon, it will actually not, it will permanently reside inside it, and from the outside, the thing will "penetrate" the black hole through a point in the event horizon.
However, something that falls into a black hole can never reach and pass through the event horizon, because crossing the event horizon means passing through the infinite abyss below the event horizon. The actual distance between inside and outside the event horizon is mathematically infinite, after all, the structure of space-time here has been infinitely distorted. No matter what is inside the horizon, even if you can sail at a fantastic speed of light, you will not be able to reach and cross the horizon, after all, the distance you need to pass is infinite.
So the answer to the question is: everything that falls into a black hole... It's going to fall there all the time, it's going to fall all the way, and it's going to fall forever. Space is infinitely distorted (it is not easy to say downward or outward distortion here, after all, this happens in high-dimensional space, and we are only familiar with the situation in three-dimensional space), so that this thing has to go an infinitely long distance to really enter the event horizon, so that no matter how long the object falls, the distance to enter the eventline is always infinitely long.
This is an important question that most physicists don't want to answer. But our understanding of the structure of black holes can help us give us answers to our questions.
Gravitational fields cause time expansion effects, which means that the gravitational field affects the flow rate of time around massive objects, and this effect is obvious even on Earth—surface time flows more slowly than in space, causing us to spend extra effort to deal with this problem when proofreading the clocks of artificial satellites and the surface. The failure of those early communication satellites was also based on this problem, and later people had to program a compensator on the clock of the satellite to allow the satellite to communicate well on the ground.
Similarly, the extremely strong gravitational field next to a black hole causes an extremely exaggerated expansion of time. (There are many, many concepts involved here, and you need to remember each one clearly to understand the whole statement.) ）
The speed of light is the upper limit of the speed of objects in the universe. Since the speed of light is a finite value, we see the universe older than the actual universe, for example: it takes eight minutes for sunlight to reach the earth, so the sun we see is actually the sun eight minutes ago, so if the sun suddenly disappears at a certain moment, we don't realize it happened until eight minutes later. Similarly, it would take four years for the light from our nearest star to reach Earth, which means that the star we see now is actually what it looked like it was four years ago. Therefore, we who look up at the stars farther away are actually "remembering" the past.
Keep these points in mind.
Gravity affects space-time. In detail, gravity can bend, stretch, and compress the structures of space-time. Since black holes have extremely strong gravitational pulls, they have the ability to bend space-time to the limit. Many famous scientists have studied black holes and summarized several of their properties, which clearly show that the interior of a black hole cannot be described by the known laws of physics, because these laws no longer apply. When do you think the situation inside a black hole has ever appeared in the human field of vision? It's similar to what happened before the Big Bang.
We also need to focus on the scientific research on black holes. One of the most important of these is the Einstein field equation, whose solution under static spherical symmetry is called the Schwarzschild degree gauge, which can characterize black holes and white holes, which can be connected by wormholes, and this Schwarzschild wormhole is also a strict solution to Einstein's field equations. A white hole is a celestial object as opposed to a black hole, which spits out matter, and the black hole sucks matter into it.
So the ultimate answer to the question is this: the material sucked into the black hole passes through the wormhole to the white hole and is thrown out.
But we can't stop at this level, and one more thing that needs to be done is to test whether this will actually happen, and the key point is to find evidence of the existence of white holes.
Let us now summarize the points mentioned.
1) When we look up at the starry sky farther away, we see a scene of a much older past tense.
2, the black hole compresses space-time to the extreme, it twists a huge space with its own super gravitational force into a very small gesture.
3) Inside a black hole, all the laws of physics are invalidated.
4) Before the Big Bang, all the laws of physics did not exist.
Now we look at the whole picture and try to understand what all these things are all about.
This also explains where the matter (or energy) of the Big Bang came from. The law of conservation of energy states that energy can neither be created nor destroyed, but it cannot explain where the energy swallowed up by black holes goes or where the energy of the Big Bang came from. However, the energy swallowed up by black holes is related to the energy required for the Big Bang, because countless black holes, whether they once existed, are now existing or will be formed in the future, will provide energy to the single white hole at the beginning of the Big Bang.
BY: quora
FY: The Romantic School
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