After Xia Lan hung up the phone, her face was full of panic:
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"All experts must be summoned immediately, we are in big trouble!"
Although the commander didn't know what happened, he felt Xia Lan's nervousness:
"The experts should still be waiting for our news in the conference room of the combat command center. Let's hurry over and we'll be there in a few minutes."
The car was speeding along, and Xia Lan ignored the bumps and continued to calculate in the small notebook in her hand under the dim light of the car. The commander beside her looked anxious, but he did not want to disturb her.
When the car approached the combat command center, Xia Lan closed the notebook. The commander quickly asked:
"Dr. Xia Lan, what exactly is the Fresnel lens you mentioned on the phone just now?"
Xia Lan already suffered from motion sickness because she kept writing calculations in the bumpy car. She tried her best to control the urge to vomit, and forced herself to calm down and said:
"It is a refractor with a very strong light-gathering effect. Its function is equivalent to the well-known magnifying glass, but the lens is thinner than the magnifying glass and the light-gathering efficiency is higher. A palm-sized Fresnel lens can
A coin can easily melt in the sun."
The commander was shocked, "If they create a Fresnel lens in space, wouldn't it be possible to melt the glaciers on the western plateau in a short time?"
At this moment, the car suddenly braked and stopped downstairs of the combat command center. Several people got out of the car and hurried into the building. When they arrived at the conference room, in addition to the people before, experts in more fields were also present. Xia Lan even
Somewhat unexpectedly, I saw Cao Rui among them.
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When Xia Lan discovered Cao Rui, Cao Rui was also looking at her:
"Teacher Zhou has passed the critical period and no major problems will occur, but he still needs to continue to receive treatment. With your teacher Shen accompanying him, I came over first. I just arrived, and I heard what the experts said about the general situation.
, you don’t need to waste time to explain to me.”
Xia Lan smiled and nodded, and her tense face relaxed a little. After everyone sat down, Xia Lan said cautiously:
"It is now certain that the enemy has covered the Western Plateau with 3,000-meter-thick glaciers with water equivalent to 1/3 of the Earth's total ocean volume. And in the geostationary orbit 36,000 meters above the Western Plateau, there is a Philippine glacier with a diameter of more than 1,000 meters.
The Neel lens will form in five days.
I calculated the incident angle of sunlight and the position of the Sun-Earth orbit. The lens will gather sunlight after ten o'clock on the sixth day. It only takes 6 hours to melt most of the glaciers. According to the stepped terrain of our country, the carrier is huge.
The flood with potential energy will overflow the Sichuan Basin, all the way to Jiangcheng in the middle and enter the sea.
The South Asian subcontinent in the southern part of the plateau will also be completely covered by floods rushing down from the valleys of the Himalayas. It will be a more terrifying sight than the day of apocalypse described in any mythical story, and we will have less than six days left
"We must come up with a solution as soon as possible, otherwise" Xia Lan's speech ended with choked up sobs.
Everyone looked at each other, Cao Rui raised his hand and asked:
"When they use this Fresnel lens to focus light to melt the glacier, how big will the light spot be?"
Xia Lan glanced at the notebook in front of her:
"Based on the incident angle of sunlight, lens diameter, distance, reflectivity of ice and other factors, my calculations show that the diameter of the spot should be 1-3 kilometers in diameter. They should scan back and forth on the glacier to melt the glacier.
.”
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Cao Rui wrote in his notebook and said:
"I understand, you go on, I'll think about it first."
One government official clenched his fists and said angrily:
"Don't we have a way to directly destroy the lens in space? Aren't there still Space Force troops on the moon?"
The staff officer shook his head slightly:
"Before the electromagnetic storm occurred, the lunar base had already suffered serious damage. The remnants of the space force that fled to the moon had basically lost their combat effectiveness, and we can't contact them now. There are no usable space interception weapons on the ground, let alone
Besides, I don’t think they would be unprepared if they set out such a big target.”
The official asked again:
"Then how many people can we transfer to a safe area in less than six days?"
The staff officer replied:
"Judging from Dr. Xia Lan's calculations, there may be some places in the mountains in the south that can survive the flood. But even if we concentrate all our efforts, only tens of thousands of people may be able to reach the safe area."
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"That can at least temporarily preserve the fire of human civilization, and we still have the possibility to continue." Although the official's words were full of sadness, they seemed to be the only way for mankind now. The people attending the meeting began to discuss this proposal in a low voice.
feasibility.
Xia Lan put down the pen in her hand, her face pale and her eyes empty. She shook her head slightly:
"It's useless. The mountains in the south have been reduced to ashes in the fire storm. Moreover, we observed at the end of the Crisis Era that their organic transformation on Titan has not ended, and they will continue to launch attacks.
of."
"Then we can't just wait for them and drown us all like a kettle watering an anthill!" the official argued excitedly, but there was only despair in his eyes, not anger.
Xia Lan closed her eyes, took a deep breath, and then slowly exhaled:
"A population of tens of thousands, if replaced by wild animals, might still be able to survive on the earth. But we can't do that. Human wisdom has created civilization. In the long process of evolution, it is civilization that allows us to survive the cruel laws of the jungle.
We stand out from other animals. But since the day civilization emerged, we have never been able to leave the confines of civilization.
As you all know, throughout the crisis era, the human fertility rate has dropped to close to 0. We are no longer like animals, living just to pass on DNA. Civilization and wisdom have given us a higher pursuit of survival and the future. As long as we live, we will
Take a look at our planet and the starry sky above our heads.
In the past, the development of knowledge and the universe was extremely difficult, requiring every tiny individual to work hard, but no one cared about what the trivial scientific research results in front of them would bring to themselves. Because people knew that although there was only a patch of moss in front of them, our
Only future generations can light up a humble land.
And now even if we try our best to move tens of thousands of people to safe places so that they can barely survive, the inheritance of civilization is meaningless. The flames looking up at the starry sky have been extinguished, and the majestic universe and light shining in the starry sky are
We no longer have any relationship.
For those of you who are doing this, would you still want your descendants to be born into such a hopeless world, full of ashes and carnage?"
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No one spoke in the conference room for a long time, and even the sound of breathing disappeared. People's expressions were stiff, like corpses that had lost their body temperature. The breath of despair permeated the entire conference room like a rotting stench, making everyone
People feel suffocated and nauseated, but they are unable to struggle.
They don't know if they are the last human beings, but they are certain that once they are wiped out, human civilization will completely disappear from the universe. Above the ashes, the planet once called Earth will be replaced by a planet they cannot know.
name.
"We can only resist until the end! There is no escape route left for us!" The commander frowned and said decisively, clenching his fists.
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