Earth Ephemeris, Monday, April 18, 2112. The first class in the morning was the basics of time and space, and it was the first time for students to hear content similar to space and time.
The whole class did not expect that the person teaching them was actually an expert stationed in the fleet. The school bell rang, and an old man with purple-gray hair came in.
The cone-shaped purple horns are dull, the face is wrinkled and the body is tall and thin. Only the eyes are bright and lively, which seems to be able to detect the illusions in the world.
"Hello, classmates, let me introduce myself first. He is an expert in the dark energy layer of space and time in the Xijin Empire. He focuses on the theory of black hole matter and created his own theory of different universes. My name is Zisang Huahuai. You can call me Teacher Zisang or the Black Hole Old Demon. Anything is fine." Zi Sang Huahuai, a black hole expert, glanced at the entire audience with his flashing eyes, revealing a sly smirk.
"Hello, Teacher Zisang, please tell us about the black hole theory." The student who loves cosmic adventure shouted loudly.
"Hello, Black Hole Demon, this name is easy to remember." A naughty student muttered softly, covering his lips with his hands to avoid being discovered by the teacher.
Mu Liang, Li Feini, and Tang Xiaolong all looked at each other and smiled, as if they had thought of the same thing.
It is the Chinese idiom that refers to the mulberry tree and the locust tree tree, as well as the ghost story of the old demon from Montenegro.
"It's okay to teach about black hole theory, but I'm not a full-time teacher, and I don't have the time or interest to give you elementary courses such as space coordinates, time velocity, optical principles, material elements, etc. I mainly talk about holistic things and give you a Overall understanding. After class, you can check the corresponding basic information yourself." Regarding the alien teacher's teaching, the whole class listened very carefully and cherished this rare opportunity.
Because Vice Dean Puyang Meisu reminded everyone that even in the Xijin Empire, it is an infinite honor to be able to invite experts in related fields to teach.
Therefore, after the initial exchange, every student immediately kept quiet and maintained a studious attitude.
Zisang Huahuai was very satisfied with the students' performance. He turned on the holographic projection, clicked on the teaching notebook, and started his own course.
"I have checked the information and found that the theoretical basis of the universe and space on your planet are basically derived from the thoughts of the outstanding genius scientist Einstein. His theory of relativity has a thorough understanding of a basic law of the universe and is consistent with the large universe space and time theory of advanced civilizations. It is consistent. His quantum mechanics, the complex function equation about the particle state space coordinate r and time t, is very consistent with the particle engine principle of the flying saucer. It must be said that wisdom is not limited by time and space, and its realm is high. in the universe.”
"Looking at the universe, wherever we look, the tangible objects that can be reflected by our eyes are all materials that carry light, reflect light or absorb light, that is, ordinary matter. There is also a kind of substance in the universe that is compatible with ordinary matter and is Mutual repulsion and dependence follow the law of inclusion and repulsion of positive dark matter. The reason why the Hijin Empire's fleet was able to come to the solar system was because it reached the coordinate point in a short time through the dark energy layer at tens of millions of times the speed of light."
"A black hole is a special kind of material. We can't see it originally. Just because the ordinary matter around it has light, it gives human visual images a shape. Just like the stars in the night sky, except for the luminous stars, There is darkness all around. Most of this darkness is a true manifestation of dark energy."
"According to Einstein's understanding, E=mc squared, energy = mass multiplied by the square of the speed of light. A black hole is a celestial body that exists in the universe in the modern general theory of relativity; the gravity of a black hole is very large, making the The escape velocity is greater than the speed of light; it is inferred that a black hole is a celestial body with a space-time curvature so large that even light cannot escape from its event horizon. It is concluded that a black hole is a singularity with infinite density, infinitely high curvature of space-time, infinitely small volume, and infinite heat. area, swallowing all light and any matter in the adjacent cosmic area." When Mu Liang heard this, he felt that the content of the teacher's lecture was somewhat familiar.
Recalling carefully, I immediately remembered that Nangong Junfu, an expert on supernatural powers, once mentioned Einstein and also spoke highly of him.
It seems that in history, this great scientist who made outstanding contributions to the development of science and technology on Earth and the planet did indeed have extraordinary wisdom and talent.
The teacher spoke in simple and profound terms, and the students listened with great rapture.
"Next, let me ask a simple question first. Does anyone among you know when the first black hole photo of the earth and planet was released?" Zisang Huahuai looked at the group of students with a smile.
The whole class looked at each other in confusion. No one could answer. Some of them secretly opened their ID card phones and prepared to check online.
Zisang Huahuai pulled out a picture and asked and answered himself: "I can't blame you for this. You are so young and you are not able to dabble in the vast amount of professional knowledge and news reports. This time was nearly a hundred years ago in April 2019. Look at this photo. The black hole is located in the center of M87, a giant elliptical galaxy in the constellation Virgo. It is 55 million light-years away from the Earth and has a mass of about 6.5 billion times that of the sun. In its core area, there is a shadow surrounded by a crescent. Aura.”
"According to Einstein's theory of relativity, the production process of a black hole is similar to the production process of a neutron star. Usually, a star initially contains only hydrogen. The hydrogen nuclei inside the star collide with each other all the time and fuse to produce a new element - helium. Then , helium atoms also participate in fusion, change the structure, and generate lithium. By analogy, according to the order of the periodic table of elements, beryllium, boron, carbon, nitrogen, etc. will be generated. Until iron is generated, the star will Collapse. When a dying star collapses, the interior of the star does not have enough energy to contend with the gravitational pull of the massive star, causing the star to collapse and eventually form a black hole."
"Scientists generally believe that accretion is one of the most common processes in astrophysics. It is precisely because of accretion that many common structures around us are formed. In the early universe, when the gas moved towards the center of the gravitational potential well caused by dark matter As it flows, galaxies are formed. Even today, stars are still formed from gas clouds that collapse and fragment under their own gravity, and then accretion of surrounding gas. Planets, including Earth's stars, are also newly formed It is formed by the accumulation of gas and rock around stars. When the intermediate object is a black hole, accretion will show its most spectacular side. Regardless of stars, light, or ordinary matter in the universe, they all become its 'What's in your belly'"
"On the Earth and the stars, due to the small gravitational field, the distortion of space-time is minimal. But around the black hole, the distortion of space-time is very large. Even if the light emitted by the star blocked by the black hole, some of it will fall. It enters the black hole and disappears, but the other part of the light will pass through the curved space, bypass the black hole and reach the earth. Observing the starry sky behind the black hole, it is as if the black hole does not exist. This is the invisibility of the black hole."
"What's more interesting is that existing observational results show that some stars not only emit light towards the Earth star, but can directly reach the Earth star. The light they emit in other directions may be refracted by the strong gravity of a nearby black hole, and can Reaching the Earth star. In this way, we can not only see the 'face' of the star, but also its 'sides and back' at the same time. This is the 'gravitational lens' effect in the universe."
"The attraction of a black hole will have terrible consequences. Everyone already knows that it has a huge appetite and will suck in everything. To use a simple and easy-to-understand metaphor, if we take a spaceship that is strong enough to resist suction and approach the black hole As soon as the astronaut exits the hatch, he will begin to realize that the gravity pulling his feet is stronger than the gravity pulling his head. This attraction drags him down ruthlessly. The difference in gravity will quickly increase. It will stretch it and tear it apart. The remains will be decomposed and fall into the infinitely dense core area of the black hole."
"The existing consensus is that the age of the universe is about 13.82 billion years. In the universe, the most massive black hole appears when the universe is about 100 million years old. The first rapid growth period is about 1.2 billion years old. Proving the growth of black holes , basically synchronized with the early stages of the universe’s explosion, this is a phenomenon worth pondering.”
"According to the observation data of the Earth's stars and the experts stationed on the fleet, recent scanning calculation results have confirmed that the center of the Milky Way where you currently live, and all the stars in the Milky Way, including the Sun, revolve around a supermassive black hole that exists at the center of the Galaxy. On the premise that the black hole's own mass is close to the critical point, dark energy, light, antimatter, and ordinary matter maintain a relative balance under the combined effects of attraction, magnetic field, and repulsion."
"Following the law of conservation of the universe, the loss of energy will lead to the loss of mass. A new theory points out that black holes, as special substances, have a lifespan, and death is an inevitable outcome. Some people speculate that the way black holes die may It is carried out by transforming into a white hole. Theoretically speaking, the behavior of a white hole is exactly the opposite force of a black hole. That is, the black hole continues to swallow matter, while the white hole continues to eject matter. The theoretical basis is obscure The quantum gravity theory. I personally believe that quantum theory is not omnipotent, and this inference is far-fetched."
"According to the theory of terrestrial physicist Hawking, in quantum physics, there is a phenomenon called the 'tunnel effect'. Space and time will curve under the action of the gravitational field. The reason why black holes hide themselves is the curved space and time. . Since it cannot be reached, approached, or verified, scientists have put forward various conjectures about its internal structure."
"Some people speculate that the core of a black hole with such a high density must be extremely strong. In the process of continuous 'sucking', the 'belly' will become larger and larger and gradually spread around. Eventually, it will swallow up the entire universe and return to the origin. Accumulate energy again and wait for a new explosion opportunity to come."
"Some people believe that it is the transformation channel of cosmic matter. It sucks dead stars, floating dust and other cosmic debris into the hole, and through the transformation of antimatter, ejects the energy required for the expansion of the universe to a specific exit, satisfying the need for the universe to maintain its own existence. power."
"Based on its light-transmitting properties, some people speculate that a black hole is actually a 'space-time accelerator' that can amplify the speed of time and space. By traveling through the universe through it, it may also be able to achieve the effect of the dark energy layer."
"All the various remarks have a certain theoretical basis, and their feasibility cannot be ruled out."
"I have my own understanding, which is completely different from their ideas." Zisang Huahuai does not reject other people's theoretical views. Science ultimately needs facts to support it.
In the face of no real evidence, no one is qualified to make arbitrary conclusions.
