What's inside the black hole? The little-known side
Four seas network: black hole is the most mysterious object that human beings can detect in the universe at present. The back of black hole is a huge mystery, waiting for human beings to slowly uncover it. In fact, many people have a big misunderstanding about black hole, thinking that black hole is a hole, but it is not. Black hole is a huge mysterious black sphere, and any matter, including light, can be absorbed into it, and can never come out again Come on, what's inside the black hole? Let's explore it together!
What is a black hole?
A black hole is a star at least 10 times larger than the sun. In the remaining 10% of its life, it will gradually become hotter (and release more energy). Because its mass is too large, it will produce a lot of gravitation; therefore, a star can only rely on its own nuclear fusion to generate energy to balance its own gravitation. But when the energy is used up, the gravity becomes the dominant force, and there is no force to compete with it, which leads to the collapse of such stars, resulting in a more thorough collapse (when the mass of stars is small, the collapse is not so thorough). A star the size of the sun can only become a white dwarf star, and a neutron star if it is more than eight times the size), thus becoming a point of infinite gravity and gravitation. Anything will be sucked in.
To really understand and explore what is inside a black hole, it's very important to correctly understand what a black hole is. For a long time, many people have understood a black hole literally, a "big black hole". In fact, it's not the case. Let's summarize the characteristics of a black hole:
1. Black hole is a celestial body. Black holes, like other stars and planets, are celestial bodies in the universe.
2. Black holes are invisible. Black holes are called black holes because they can absorb light. To be exact, black holes are invisible and cannot be seen by human eyes. To say it 'Black' means that it is like a bottomless hole in the universe. Once any matter falls in, it 'seems' that it can no longer escape.
3. High density and small volume. Black hole is a kind of star with very high density. Its strong gravitational field will suck in all the surrounding materials.
4. There is no fixed period of operation, and the black hole has no period of revolution and rotation, so it can move.
5. Fast growth rate. The first rapid growth period of the largest black hole in the universe occurs when the universe is about 1.2 billion years old, rather than the previously thought 2-4 billion years.
At present, there are only three physical quantities that can be measured: mass, charge and angular momentum. The so-called "black hole" is formed by the collapse of gravity of a massive star after the fuel of the fusion reaction is exhausted. Because of its strong gravitational field, it is generally believed that no matter, even light, can 'escape'. This is the basic definition and understanding of black holes by scientists. What's inside this pea sized black hole? Let's understand it together.
What's in a black hole?
Most black holes are the places where stars in the universe die. If you want to compare them, black holes are a cemetery and a garbage collection station. So what's inside a black hole, in a simple sense, is the rest of the universe's energy or the objects swallowed by the black hole, such as the compressed light, the compressed stars. Black holes account for 90% of the total mass of the universe. Black holes are everywhere. More specifically, we can find some evidence from the formation of black holes to explore what the black holes in the universe contain.
A black hole is a singular point with infinite density, infinite curvature of space-time, infinite heat, infinitely small volume in the center and a part of the empty sky around it, which is invisible. The process of black hole is similar to that of neutron star. When a star is about to die out, the core will shrink and collapse rapidly under the action of its own gravity, and a strong explosion will occur. When all the matter in the core becomes neutrons, the shrinking process stops immediately and is compressed into a dense star, at the same time, it also compresses the internal space and time. But in the case of a black hole, because the mass of the star's core is so large that the shrinking process goes on endlessly, the neutron itself is crushed into powder under its own squeezing gravity, leaving behind a matter of unimaginable density. Due to the gravity of high quality, any object close to it will be absorbed by it. Black holes start to devour the outer shell of stars, but they can't devour so much material. Black holes will release some material and emit two pure energy gamma rays.