Before arriving, she had made many ideas, including the appearance of Jiangcheng, the style of the buildings after the natural disaster, the layout of the city, and what kind of humans living in it would be like.

Radiation wasteland wind? Terminator mechanical wind? Or biochemical hide-and-seek flow? Or crazy Max-like rage?

But she never expected that Jiangcheng would be a building!

That's right, Jiangcheng is just a building!

But it was really too tall, too thick and too big, so that Alphagi looked up at the sky at 89 degrees and barely saw the whole picture of this city, or the building.

How high is Jiangcheng?

Before the natural disaster, the tallest building in the world was called Burj Khalifa, with a building height of 828 meters. Apart from the hairstyle, it is less than 700 meters. Jiangcheng may not have the height of Burj Khalifa, but it is definitely a skyscraper level of three or four hundred meters.

The plants after the natural disaster were generally tall. The diameter of trees in the forest was about ten or twenty meters, and the height was about one hundred or ten meters or even 200 meters, but there were no advantages in front of this building.

How thick is Jiangcheng?

Generally, skyscrapers are more modern, with slimness and height greater than width; Jiangcheng is more ancient, or to be more specific, compared to the Tang Dynasty, its width obviously exceeds height.

The height is three or four hundred meters, and the diameter is seven or eight hundred meters, but it is not straight up and down, just like the trapezoidal pyramids in South America, gradually narrowing from bottom to top, and there are three or four or five layers in total...

The specific number of layers is less than the ground, because it is really too tall. The narrowing of the upper floors is arced, and the vision will be blocked, just like a fat man cannot see his feet.

Only the second and third floors can be seen, and the cannon's muzzle is vaguely protruding out.

Although it is very far apart, you can also feel that the people of Jiangcheng know the truth that the way is justice.

The entire Jiangcheng is like a huge circular stadium. On the top of the stadium, there is a smaller stadium, then the third, the fourth... and it is like a never-sinking aircraft carrier built on land.

In comparison, the pyramid, which had been awesome for thousands of years, was just a minor. He could just jump to the waist of Jiangcheng; the Great Wall, which was also awesome for thousands of years, was as pale as it was. It was probably even more than a thousand kilometers to be able to be plated into a scale in front of him.

After all, this is a modern building based on reinforced concrete structures.

But it is normal to think about it. Because according to what Ye Chao said, there are more than 100,000 or 200,000 people in Jiangcheng, and there is no such large scale. How can we accommodate so many people to produce, work and live normally?

"Boom..." A shocking shocking shock came, and the distance was very close. Even the students in the basket were awakened and got up one by one with sleepy eyes.

Are you firing cannons on the top of the city wall? Are there enemies? Alphagi is instantly alert.

But the people who were awake in the dog team, including Xu Tiange, were at ease and did not respond at all. They seemed to be used to it, and it seemed that they had entered the time of the salty...

"What's the situation?" Alfaji looked at Ye Chao's dog head.

Ye Chao was still dazed and sensed the building he was with. After being asked several times, he suddenly came back to his senses. The dog listened: "Oh, that's rolling."

Genggu? Alphagi noticed that the place where the sound was made was a bamboo forest, but the bamboo was a little thick and a little taller, and it seemed that due to the lack of sunlight, the color was also a little white.

=￣ω￣=

Is it the kind of rolling I think? Alfaji threw out a national treasure that rolled around and acted cute.

Ye Chao glanced at the picture in confusion: "...right?"

"Ye Chao, take me to see!"

"Take you to see? What's the best thing about Ganggu?"

What's so good about Genggu?!

Thirty years ago, I dare not say that people on the whole earth will come to beat you. At least half of them will have impulsiveness. Do you believe it?

【Perfection-44】

This palace knocked on me, and my favorability dropped again by accident.

【Perfection-10】

“…”

At the stalemate, the long dog team was carrying the students, carrying the prey they captured along the way, the fruits, insects and other things they collected, and came to the gate of Jiangcheng, which was somewhat high-tech and retro.

Directly above the gate, two 3,000-inch-+ words "Jiangcheng" are implicit and low-key.

In front of the gate, the guard wearing thick steel armor, holding an ultraviolet light, stepped forward, greeted the teachers with familiarity, confirmed his identity, searched and collected materials, purified and filtered the body, and after a set of procedures, the city gate, which was similar to the beating Hakka, slowly opened.

The reason why we talk about retro is because of the style that has not changed for thousands of years like the ancient city gate.

When it comes to high technology, it is because the door is shiny with a strange metallic luster. It is not only a height of more than 30 meters, but its width is more than 20 meters comparable to that of a Hakka, and its thickness is astonishing as one meter!

For such a door, the volume of a single fan is 300 cubic meters. If the whole body is made of iron, the weight is about 2,400 tons, and the two fans are nearly 5,000 tons! Even if there is a door shaft, a slide rail, and a hydraulic device, how can it be opened and closed without deformation, not tight, and not wasted too much energy?

Even if it is hollow, it will cost hundreds of tons, right?

Alphagi couldn't beat up his sister.

After paying a favorable price, she got the answer - this door is made of nanofoam alloy, which looks tall and heavy, but in fact 99% of it is cavities, soundproof and airproof, impact-resistant, easy, refreshing and not greasy.

"I haven't been to school before, don't always lie to me..." Alfagi smacked his lips.

High-strength foam metals do exist in theory. After all, atomic molecules are empty after all, and the orderly arrangement is completely supported by electromagnetic forces.

If metals appear foamy at the nanoscale and are arranged neatly according to specific rules, various incredible mechanical, optical, electrical and physical characteristics will be born, which is an area that many laboratories were studying before natural disasters.

But the problem is, foam metal is too difficult to make!

How can all foam cavity sizes, the same specifications, or even the shapes meet the regulations? The military parade has to be rehearsed for several months!

Temperature, humidity and even a shiver of the magnetic field may have an impact on the finished product...

In fact, it is good that industrial-grade foam materials can have a neat cavity of millimeters.

One is 10-3 power, and the other is 10-9 power, so feel it.

Of course it is not the square gap, but—

===

===========

Can the gap be reached?

"Is this... difficult?" Ye Chao couldn't understand Alphaji's shock. "Although I don't know the specific process, it's just that when the molten iron melts and comes out, the power to foam it..."

Alphagi saw that the iron was released, and the red melt turned into a boiling ball of iron with the operator's will, floating in the void and changing unchanged. A sudden "bang" sound was like popcorn, and the ball of iron instantly expanded into a foam alloy.

"You guys, do you know if you are cheating..."

So, although it was a calm transaction, Ye Chao was still denied his favorability.

However, it was not Ye Chao who was anxious afterwards, but Alfaji himself.

I can't continue like this anymore, I really can't! This guy's favorability has exceeded -1500, and I went straight to the -2000 mark

This palace should be reserved, and this palace should be less curious, otherwise disgust will become hatred sooner or later!

This kid is heartless and doesn't care, I can't ignore it...

Now I can still have a dog's head. If I get hatred and can't even speak, I want to vomit when I hear his voice, but what should I do?

So Alfaji tried his best to suppress his curiosity until five minutes later.
Chapter completed!