Black holes are usually discovered because they collect the surrounding gas to produce radiation, a process known as accretion. The efficiency of radiant heat energy from high-temperature gases can seriously affect the geometrical and kinetic properties of accretion flows. Thin disks with higher radiation efficiency and thick disks with lower radiation efficiency have been observed. As accretion gases approach the central black hole, the radiation they produce rotates the black hole and acts as a flow of the central extended material system. Accretion is one of the most prevalent processes in astrophysics, and it is precisely because of accretion that many common structures around us are formed. In the early days of the universe, galaxies were formed when gas flowed towards the center of the gravitational potential well created by dark matter. Even today, stars are formed by gas clouds that collapse and fragment under their own gravitational pull, and then accretion of surrounding gas. Planets, including the Earth, are also formed around newly formed stars through the accumulation of gas and rocks. When the central object is a black hole, accretion takes on its most spectacular side. In addition to accreting matter, black holes also radiate particles outward through the process of Hawking evaporation.

Liu Borong and his wife Yu Jinyu are discussing how a spacecraft or spacesuit can fight a black hole and go to the center of the galaxy.

Yu Jinyu proposed about the evaporation of black holes, because the density of black holes is extremely large, according to the formula, we can know that density = mass plus volume, in order to make the density of black holes infinite, it means that the volume of black holes should be infinitely small, and then the mass should be infinite, so that it can become a black hole. A black hole is a death star formed after the "extinction" of some stars, and it is extremely massive and extremely small. But the day of the black hole will also die, according to Hawking's theory, in quantum physics, there is a phenomenon called "tunnel effect", that is, although the field strength distribution of a particle is as strong as possible in the place with low energy, but even in the place where the energy is quite high, the field strength will still be distributed, for the boundary of the black hole, this is a barrier with quite high energy, but the particles can still go out, but it is impossible to do it with your current particle cannon, unless you develop an ultra-high-energy ion cannon, Modify them to the extent of particles, but we can't complete these things, and we can't do it without talking about the people of the Stygian Sea vegetation who don't talk about science and technology.

You and I thought about going together, although our technology can make interstellar jumps to open wormholes, but there are still some conditions, and the number of light years in the galaxy is actually twice that of two light years, that is, it is twice as many light years, which is equivalent to the ability of 1.892105668e20 to come to the center of the galaxy, that is, in the universe, and the center of the universe is the center of the two galaxies. In other words, the universe is still out of reach.

It can also be said that although our current technology has arrived, those aliens would not have come to the earth if their own planet had not become white dwarfs, and it would not have been possible for them to come to our earth after some life planets were replaced if it were not for the Galactic War.

Now that we're sharing their technology and imprisoning them, how can they not be angry, so I'm also in danger.

I think you're unfounded! Don't you think that maybe we are wrong, they can't have come to our planet in the first place or they still want to go back, they have already lived on our planet for a while. In other words, 60 years, is he just colonizing for that day? Now that you're resting, don't think about it anymore, let's go and rest first!

You're also resting early, and it's not too early.

Late at night, on the isolated island of the city, the aliens of the Stygian vegetation, their purple eyes are bubbling with fiery red flames, and some people put on battle suits and carry weapons to rush out of the isolated island.

One of the older men stopped and said, "Carl, stop, do you think you'll see you when you go out?" Why do those earthlings restrict our movements, isn't it our civilization that threatens them? If you rush out now, I'll make sure that the cannon of their turret can pierce your body, although we can genetically recombine now, but we also wrap our genes in flesh and blood. ”

You mean they can destroy our genetic system.

If not destruction, it will be death.

But general, are we going to leave it at that?

No, we still have a chance. Older generals look like young men in their thirties, and their genes can limit the functions of the human body, or like a computer, it can be reassembled, as long as the external mechanism of the computer is not damaged or worn.

Carl stopped his impulsive anger, and his eyes returned to a faint purple color.

The old general said, "You have to be patient, don't the earthlings have a saying that three thousand Yuejia can swallow Wu, and the painstaking people will not live up to it." Millions of Qin passes belong to Chu after all. ”

What do you mean by this, general, I don't really understand, I hope you can explain.

It means patience and secretly accumulating power to destroy one's opponents. Do you understand?

General, I see, we will continue to combine the Genesis drive with the data of our Stygian vegetation to develop a new weapon, and we have named him the Genesis Armor, and as long as we wear them, we will not be our opponent.

Carl impulsively rushed out and killed them. Carl has an impulsive personality and is jealous of some of his beliefs.

The red dot in the middle of the surveillance is approaching the center coordinates, and it seems that they are approaching, and the man in a military uniform sitting on the side weighs the end of the tea bottle in his hand. Give the order to the adjutant on his side to activate our Skynet system immediately, I don't believe that any of them can fight our Skynet system, I want them to know what it means to hit a stone with an egg.

A little red dot in the monitoring Xu Tong is approaching, and the system sent out seems to have no effect at all, said the operator who was controlling.

It's good to get this guy out, I'm going to see what they're capable of pitting our weapons.

Three or four men with long knives in their hands had already poured into their central skyscraper from the shore in their boats, unaware of the overwhelming beating of the tide, and they had only one conviction in their hearts to escape. The swarm of machines meandered from all directions, some rushed to them, some swam towards them at great speed, some had climbed to the top, some fell from the sky and pounced on their heads, Karl raised his long knife to block, and slashed to kill them, but they were like ghosts that could not be killed, and after being exploded, a group of them would rush up, piles of weapons were blasted by their armor, and one of them stood on a high place, the anger in his eyes wanted to tear him apart, he raised a sniper rifle in his hand, and the crosshair in the scope was locked on Carl's shaking head. Always ready to pull the trigger and blast him up.