From the moment he stepped out of the portal, a gravity that Chen Yu couldn't detect but existed pulled him forward.
But as he started the quantum engine, the drag force was immediately offset.
"According to the data in the helmet, my current speed is 1020 meters per second, and the black hole 7,000 kilometers away will not pose a threat to me at all. And the engine pressure is only 75% at this time, which means that even if I go deeper, distance, I can escape easily.”
"But for the sake of safety, let's set it within this limit and don't let it go wild."
As he spoke, Chen Yu increased the engine pressure by 10% and flew in one direction at a slow speed.
"According to common sense, a black hole without an accretion disk is indeed invisible. But I have a method that allows everyone to observe the existence of a black hole with their own eyes."
"It's just that this method requires finding a special angle."
"So before looking for this angle, let me explain to some viewers in front of the screen who don't know much about astronomy what a black hole is."
Facing the camera, Chen Yu recalled the copy he had memorized in advance and spoke slowly: "A black hole, to put it simply, is the product of a mass of matter compressed to the extreme."
"A cat will become very thin when squeezed by a hydraulic press. If there is a magical hydraulic press, this cat can be compressed to a few nanometers, and every molecule of its hair, flesh, bones, and nerves will be crushed into Atoms, then crush the atoms into neutrons, and finally crush all the neutrons... "
"None of the neutrons that made up the cat are there, but its weight is still there."
"So, this cat becomes a black hole with infinite mass."
[Cat: Meow?]
[A terrible metaphor.]
[True and easy to understand.]
[My husband is so knowledgeable!]
[Husband is so big!]
[Really big +1]
[I understand the truth, but where can I buy this hydraulic press?]
[Have you all forgotten that the theme of this live broadcast is human disaster?]
[I didn’t forget it, but I just wanted to call 666...]
[6666…]
With his hands covered by armor, Chen Yu couldn't see the audience's comments and continued to explain.
"Of course, it is impossible for a cat to collapse into a black hole. In the universe, generally only stars, such as the sun, can collapse into black holes."
"If our sun were dozens of times bigger and turned into a super-large star, after the nuclear fusion fuel inside it was exhausted, the huge shell would collapse inward, crushing molecules and atoms under the drag of gravity. , neutrons... eventually become a black hole."
"This is where most black holes in the universe come from."
Chen Yu paused for a moment, waiting for the audience to digest it, and then said: "Many people will wonder how this kind of thing was discovered by humans? This has to mention one of the two legs of human civilization-Einstein. "
"In 1916, Einstein officially published the theory of relativity, and the whole world knelt down to worship him. At this time, astronomer Schwarzschild held the theory of relativity and calculated the gravitational field equations, and came up with a 'vacuum solution'. This solution showed that, If a large amount of matter is gathered at a point, there will be an horizon around that point. Once it enters the horizon, nothing can escape, including light."
"The incredible object that exists in this theory is called a black hole by physicist Wheeler."
"Its existence was completely beyond the understanding of the academic community at the time, and many scholars were unwilling to believe it. However, Einstein's general theory of relativity has been verified. Unless the theory of relativity is wrong, black holes must exist."
"Everyone knows what happened next."
Chen Yu gave a thumbs up: "Through gravitational redshift and gravitational lensing, black holes have been proven."
[666!]
[6666…]
[If you are young and don’t work hard, you will be the boss 666.]
[Eye-opener.]
[Einstein’s father’s thighs are so thick.]
"Black holes are scary." Chen Yu glanced at the changes in the gravity value inside the helmet and said seriously: "As long as you enter that visual interface, you will be torn apart by the terrifying gravity at the atomic level, leaving only pure energy. Even Ant-Man can bear it Can’t live.”
"Well... Regarding the origin and history of black holes, I will briefly talk about it here. I am not far away from that 'point'. I will use the last time to tell you something interesting."
"Black holes have only three basic quantities: mass, angular momentum and charge. Mass is weight, angular momentum is rotation, and charge is whether the black hole is charged."
"So in academia, with reference to these three basic quantities, black holes will be divided into four properties based on whether they are rotating and charged, in the form of Cartesian product: Schwarzschild black hole, RN black hole, Kerr black hole, Cole Newman black hole "
"But this kind of classification is too professional and some viewers can't understand it. I just classify them based on size from the perspective of 'ordinary people'."
After saying that, Chen Yu faced the camera and held out three fingers.
"Small black holes, stellar black holes, super large black holes!"
"Let's talk about super-large black holes first. Their mass is beyond imagination and can even drive a galaxy to rotate. For example, the Sagittarius A black hole in the middle of the Milky Way has a mass of the sun. Note that it is not the earth. It is 4.3 million times that of the sun!"
"The Andromeda galaxy next door to the Milky Way has a central black hole with a mass 33 million times that of the sun!"
"The Straw Hat Galaxy, the central black hole, one billion and twenty million times!"
"The black hole we saw in photos last year, the black hole at the center of M87, is 6.5 billion times larger."
"Ton 618, 66.6 billion times the mass of the sun, has a Schwarzschild diameter of 384 billion kilometers..."
After finishing his words, Chen Yu couldn't help but sigh: "This is the universe. The more you understand it, the more you realize how insignificant you are."
"As for stellar black holes, as I said before, black holes formed by the collapse of stars generally have a mass about dozens of times that of the sun. Skip it."
"The black hole that broke into our solar system is a small primordial black hole. Its mass is only 125 times that of the earth. It was formed by the collapse of the universe during the Big Bang period when matter was extremely dense."
"According to the Hawking radiation theory, a formed black hole will slowly radiate particles outward. If there is no food, the black hole will evaporate, leaving only a permanent, Prandtl-length remnant. But this process is quite Long.”
"In other words, the hole 7,000 kilometers away from me is already 13.7 billion years old. It witnessed the moment of the Big Bang."
[Shocking...]
[Compared to the universe, the earth is like a bacteria.]
[The ancients thought that the universe revolved around the earth. 2333.]
[I have been following the anchor since the first review, and I know so much! admire! Awesome!]
[Awesome ass! Don’t you know what copywriting is?]
[CNM! If the anchor has no copywriting, he is just awesome!]
[The anchor is awesome!]
[Awesome +1]
[Do you know how hard my anchor works?]
[I couldn’t tell whether it was black or pink for a moment...]
"arrive."
After flying for another five minutes, Chen Yu suddenly paused and opened his arms: "This is the position."
"As we all know, not even light can escape the gravity of a black hole. But what about the light that's close to outside the black hole's event horizon?"
"It will be twisted."
"This phenomenon is called gravitational lensing."
"Then let's make a bold assumption..."
"What would happen if you looked at the sun through a black hole?"
Chen Yu clasped his hands together and said in an increasingly excited tone: "The light in the middle will disappear and the four circles of light will be distorted. In this way, we can see the existence of the black hole with our own eyes through the distortion of the light!"
"The gravity that can absorb light particles is precisely the culprit that exposes them!"
[What the hell? !]
[It seems to make sense...]
[The legendary Einstein ring!]
[God's idea...]
[My cock exploded.]
[Awesome, awesome!]
[My mother asked me why I was doing somersaults while watching the video.]
[This wave of operations is really cool...]
[show.]
[I was still thinking about how I could see it, but it turned out to be like this... ]
"And my location is on a straight line beyond the two points of the black hole and the sun."
"Now, countdown to three seconds..."
Chen Yu slowly turned the camera: "Let us witness the true form of the black hole together!"
"three."
"two."
"one!"
(End of chapter)