Annihilation of the solar system

When Cao Rui and Zhou Cheng returned to the service area, Shen Manling, Xia Lan and others were looking out the window at the mountain shadows that were bright and dark in the electric light. When they saw them coming back, several people spoke almost at the same time. I want to ask. Cao Rui made a quiet gesture, then looked at the situation outside, closed the door and window, and whispered:

"The situation is not optimistic. Lao Zhou and I saw what they were doing under the thunderclouds. They should have used lightning to split the rocks on the mountain and ignite the coal seams below!"

Everyone was shocked. Wei Xu opened his mouth and was about to speak out. Xia Lan beside him pulled his sleeve. Only then did he realize that there were countless people outside the door who had just survived the disaster. If there was no accurate information, If the conclusion spreads, it will add unnecessary trouble to the already fragile organizational system.

He suppressed his surprise and his voice almost came directly from his throat:

"Can they split a mountain with lightning?"

Zhou Cheng nodded slowly:

"Lightning itself is actually high-temperature plasma carrying huge energy. We can also create it in the laboratory, but the energy is more than ten orders of magnitude different from lightning in nature. Such high-energy plasma contacts rocks, releases energy, and melts Rocks are a very common physical phenomenon.

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But they were able to control the atmospheric clouds to form lightning so accurately, and continuously hit an area tens of meters long, using lightning to carve out a crack only tens of centimeters wide and more than a hundred meters deep on the mountain. This is simply incredible. I can't describe it

You know, when human science and technology developed to the end of the crisis era, when it was at its peak, the formation and discharge process of natural lightning in clouds were still not understood, and they actually "

When Zhou Chenghua reached the second half, his voice became trembling, with deep despair and fear in his tone.

"Then, the thundercloud just ignited the underground coal seams and then dissipated? Why did they do this?" Wu Fan asked in confusion.

Shen Manling turned to look at the alternating light and dark mountain shadows outside the window, feeling sad:

"They lit the fire."

"Earth fire?" Xia Lan, Wei Xu and others asked out loud. It was obvious that students like him, who were quite knowledgeable in astronomy, did not know what the teacher meant by "earth fire".

Shen Manling took a deep breath, adjusted her emotions and said:

"When I was a graduate student, I followed my tutor on a research project on the topography of Mars. We went to a place called Hongya in the Qaidam Basin. The topography there was very similar to that of Mars. The conditions at that time were very difficult. , after completing the project, all of us, my brothers and sisters, became sallow and thin.

In order to reward us, the instructor simply took us to his hometown Yincheng to play for a few days. In addition to delicious food and drink, the instructor also took us to Helan Mountain. There was no scenic area development at that time, so we took a jeep on the grassland at the foot of the mountain. Wander around at will.

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When the car passed a small mountain col, all of us saw a large smoky gray-yellow hillside in the distance. The surrounding hillsides were covered with lush green grass, but only that one was bare. The instructor told us , under that hillside are underground coal seams that have been burning for more than three hundred years."

"Over three hundred years? Has it never been destroyed?" Wei Xu asked in surprise.

Shen Manling shook her head slightly:

"At that time, we asked our instructor the same question, but he did not answer us directly. He just drove towards the hillside where the smoke was still coming out. When the car was still far away, we could already smell the thorn in the air. After parking the car, several of us were already sweating profusely.

It was only when I stood in front of the withered hillside that spread to the end of my sight that I realized that human power cannot subdue the burning demon buried deep in the ground, and to this day, the underground coal seams in Helan Mountain have not been extinguished.

That experience had a great impact on me. After I returned to school, I did a lot of research on earth fire. Compared with those disasters that can suddenly take away countless lives, earth fire is a gentle devil.

When it is quietly ignited underground, it will not cause any impact, and no one will notice it, as if it does not exist at all. But once it begins to spread in the coal seam, its ferocity will slowly be revealed bit by bit. The point is revealed, and no one can stop it.

But fortunately, coal seams often have faults in the folded rock formations, which makes the underground fire only burn in a closed coal seam. This is also the last shackles on the devil of underground fire, and now "

Shen Manling looked at the still flickering mountain shadow outside the window and was speechless for a moment. Xia Lan was startled and said in a trembling voice:

"The entire Hedong, Hetao and even the northern Qinling Mountains have the largest coal reserves in the world. In the strata beneath our feet, coal is almost everywhere! They are about to ignite nearly 700,000 square kilometers of ground fire!"

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Shen Manling nodded slightly and said nothing. But from the frequent dim light, you could see the tears falling down her cheeks. Cao Rui's left hand slapped on his right fist:

"Oops! Basically all the teams escaping from Northeast and North China have entered the Hedong area. Those who are walking fast may have almost reached the Qinling Mountains! Do we still have time for them to withdraw?"

Shen Manling gently wiped away the tears from the corners of her eyes and still looked out the window:

"If this kind of thundercloud lightning had been discovered two days ago, based on the scale of their current ignition, I am afraid that most people would not have the chance to go out. The carbon dioxide pouring out from the cracks in the ground will reduce the oxygen content on the ground. We Actions will become more strenuous, and some areas with higher carbon monoxide concentrations may even directly lead to poisoning.

As the ground fire spreads in the coal seams, the temperature will escape to the surface through the rock formations. The air temperature will soon exceed 50 degrees, and the high concentration of carbon dioxide will intensify the greenhouse effect, and such a situation may occur within two or three days. will appear. We can't get out."

Everyone was silent, and the electric light from the distant mountains was still flickering. Under the weak light, the expressions on each other's faces could not be clearly seen, but the breath of despair had penetrated into everyone's bones.

Zhou Cheng suddenly stood up and grabbed Cao Rui's arm:

"Old Cao! Don't we still have a few cars? Can you send Man Ling, Xia Lan and Mengzhu out first, and then we can think of a solution?"

Xia Lan and Liu Mengzhu both stood up at the same time:

"Teacher Zhou"

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Before she finished speaking, Shen Manling waved her hand gently. She walked to Zhou Cheng's side, pulled down his hand that held Cao Rui, and interlocked their fingers:

"Old Zhou, I will never leave you at a time like this. No matter what happens next, I will face it with you. Otherwise, my life will be meaningless."

Shen Manying's words were as gentle as water, but there was unswerving determination between the lines. Zhou Cheng looked at his wife's tearful eyes, hesitated several times, and finally nodded slowly.

Cao Rui pressed his hand on the window sill and said angrily:

"If I can get a car, why don't you tell me what to do? There are only three drivable cars in the entire column now. They are all used by the army for reconnaissance and communication. Even if someone gives me one or none of them, Give it to me, that's useless.

A few days ago, when they went to the oil reserve depot to refuel, they found that the oil depot had been buried by a landslide. When I went to see Thunder Cloud just now, I saw that there was only more than 100 kilometers of remaining oil left on the oil gauge. We are the same. There’s no way to escape, I’m just going to get roasted in another place.”

"Then there is no other way?" Zhou Cheng lamented.

Cao Rui frowned tightly, placed his hands on the windowsill, and kept tapping the tiles on the window sill with his fingers. He looked at the dark valley below and kept muttering:

"Let me think, let me think"

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