Technology overlord starts from intelligent learning machine

Chapter 271 Let’s go see the stars with you

As Iron Man rises slowly, Meili's universe appears in the live broadcast room and in the audience's field of vision.

A big wave of barrage is coming!

First of all, what appeared in front of everyone was a huge sphere, the mother star of human beings, Blue Star.

"Friends, this is our homeland, Blue Star!" Zhang Chaojie introduced: "As you can see, from space, Blue Star is a blue planet on the whole, because most of the surface of Blue Star is covered with blue. The blue ocean is covered, and the blue light component in the atmospheric scattered sunlight makes the blue star appear blue as a whole."

"In these blues, you can also see a small part of yellow, green and white. The yellow is the desert and the mountains without vegetation, the green is the forest, and the white is the cloud and the snow mountain. Everyone follow the direction of my finger Look, there, the white one is our roof of the world, yes, everyone told me in subtitles, that is the Himalayas.”

"A friend asked why the atmosphere of the blue star looks blue. Okay, now I will answer this question. On a sunny day, if we stand in the wilderness, such as on the unpolluted Qinghai-Tibet Plateau, we will also look up. Seeing the blue sky, this is because when sunlight enters the atmosphere of a blue star, it encounters atmospheric molecules and is scattered. There are not many dust particles in the high altitude, so molecular scattering is the main factor. The light intensity of scattered light is related to the wavelength of incident light. The fourth power is inversely proportional. Among the seven colors contained in sunlight, purple, blue, and blue light have shorter wavelengths, which are strongly scattered by molecules, while orange light and red light with longer wavelengths are weakly scattered. The scattered light at high altitude is mainly purple, blue, blue, etc., and the combined effect makes the sky blue. If you have the opportunity, friends, you can come up as tourists in the future and see our beautiful sky in space. home."

"Okay, the explanation is over, time is limited, please follow my line of sight and take a look at our space station."

Zhang Chaojie controlled Tie Xia to move two steps on the roof of the Gaolaozhuang Holiday Hotel, walked out of the passage, and the hatch at the top of the passage was closed.On the roof of the hotel, there is a cage-like fence more than three meters high. The gap between the fences is relatively large, just enough to block Iron Man.

"Everyone, look at my feet first!" Zhang Chaojie controlled Iron Man to lower his head. Under Iron Man's feet was a platform with concave and convex patterns: "On this platform, these patterns are for anti-slip, and these fences are for Protect me from flying out. Although the gravity system is still working under my feet, if I jump up, I will never fall again. If I accidentally slip, I will slide forward. The reaction force will also make me fly. So there is this fence. This is just a temporary solution, and it will be installed as a viewing platform of transparent plastic material."

"Everyone look over there!" Iron Man turned his head to the other side of the space station, which was the industrial area of ​​the space station. "Over there is the industrial area of ​​the space station. There are already four alloy smelting production lines there to produce the raw materials needed for our entire space station. The alloy used in our hotel is produced by the smelting furnace over there...Okay, just now I was wrong, the people on the ground told me that there are eight production lines, not four."

"Now, everyone, follow my line of sight and observe the space station as a whole. Yes, the space station is a big ring, and all the facilities will be built on this big ring. Now, the ring is slowly rotating. , and at the same time it is revolving around the blue star. Because of the gravity system, we can't feel it rotating in the hotel, and because we can't see the outside in the hotel, we can't feel it either It's revolving."

"As you can see, this ring is very large. The diameter from my side to the opposite side is about 10 kilometers. What you see now is only the initial stage of the space station. With the construction of the space station, the back, in the center of the ring, More facilities will be built.”

"Okay, now let's turn our sights to the distance and follow me to see the beautiful starry sky." Iron Man raised his finger, pointing at the nebula. Since there is no obstruction of the atmosphere and no influence of light pollution, here you can See the starry sky more clearly. "There, Leo, is very familiar, right? Yes, the Leonid meteor shower that everyone often hears is in that direction. That is, it is Andromeda, Altair, and Vega are in that direction..."

"There are Mars, Venus, and Jupiter. Does it feel brighter than what you see on the ground? But they all come from the reflection of the sun, and they don't emit light..."

"Now, let's take a look at the luminous body closest to us. By the way, a friend has already knocked it out, which is Proxima Centauri. There, the nearest star to us is the destination in the movie "Wandering Blue Star" . Proxima Centauri is only about 4.2 light-years away from the blue star, that is, light takes 4.2 years to travel. How far is this? "Wandering Blue Star" tells us that the blue star will fly for 2500 years."

"A friend asked whether the wandering blue star can see three suns every day after it is moored into the orbit of Proxima Centauri? There is no doubt that there is a "sun", but whether it can be described as the sun is a problem. Because, in the galaxy where Proxima Centauri is located, Proxima Centauri is too far away from the stars A and B of Proxima Centauri , how far is it, equivalent to [-] times the distance from the blue star to the sun, [-] times, what does our sun look like at a distance of [-] times? Yes, it is the same as seeing a star, so you I still can only see one sun, and two stars that are closer and brighter and can be seen during the day."

"Okay, now my friends follow me to take a look at the brightest star in the sky, right there, is it very bright, very bright, yes, that is the brightest star in the night sky: Sirius. And Compared with Proxima Centauri, the distance between Sirius and the blue star is slightly farther, about 8.6 light-years. The diameter of Sirius is 1.71 times that of the sun, while its mass is about 2.1 times that of the sun, and its absolute degree is as high as 25 times that of the sun. Do you know why Sirius is still the brightest star in the night sky even at a distance of 8.6 light years?"

"Okay, the first time I left the cabin, it's almost time, we have to go back. As we walked back, I came to answer the questions of my friends. This friend asked, can we really move to Proxima Centauri? OK Well, the answer to this question is actually no. Let’s not talk about whether we can pass 4.2 light years. Even if we pass, we must have habitable planets. Even if there are habitable planets, but compared with the sun, Proxima Centauri is much smaller, its diameter is only about 1/7 of the sun, and its mass is only about 1/8 of the sun. Because of this, the habitable zone of Proxima Centauri is closer to itself, and the entire habitable zone is also It is shorter and narrower. The unsatisfactory thing is that although Proxima Centauri is very small, it is only a red dwarf star, but its internal activities are very violent and unstable. It is hard to imagine that such a small star releases The stellar wind is even stronger than the sun. So, friends, do you think you can withstand this intensity of radiation? Can those flowers and plants that are closely related to our human life withstand this intensity of radiation?"

"Ah! This friend asked whether it is possible to emigrate to Sirius? It's still the same question. Is there a habitable planet? Let's assume that there is. The problem is that the gravitational environment near Sirius is unstable, because Sirius has a companion star, which is called It is Sirius b, and the distance between the two is about 45 billion kilometers. Although Sirius b is not as big as Sirius, it is also similar in mass to the sun, so setting up a home near Sirius will inevitably be disturbed by the gravitational force of Sirius b. problem, but not the most critical problem. The most critical problem is that Sirius is bigger than the sun. You know, the life of a star is inversely proportional to its mass. The greater the mass, the shorter the life, because the greater the mass The star, the more intense the hydrogen nuclear fusion inside it, the faster the consumption of fuel. The life of the sun is about 100 billion years, and now the sun is nearly 50 billion years old, and it may produce helium after 30 billion years Flash. And the remaining lifespan of Sirius may be less than 10 billion years, that is to say, if the sun is about to flash helium, Sirius will no longer exist.”

(End of this chapter)