Half an hour later, amid the countdown sound of the system, Pang Xuelin closed his eyes.

Plane: Bring her eyes

Identity: Pang Xuelin, Shen Yuan's student

Task 1: Help Shen Yuan complete the Antarctic Courtyard Project.

Mission 2: Transform the Antarctic Courtyard Project into an Earth Cannon.

Mission 3: Rescue Shen Jing from the center of the earth.

Rewards:

1. Reward icing and new solid substance synthesis methods.

Sugar-coated, a nano-thin film material with the function of automatically balancing and distributing the surrounding compressive stress, is used to wrap around the nuclear substance, even if the compressive stress generated by the explosion of the outer layer of explosive is uneven, after the stress balance distribution of the "sugar-coating", the nuclear explosive it wraps can still get accurate centripetal compression.

The new solid-state material, in a form between solid and degeneracy, has an extremely high density, is resistant to extreme high temperatures and pressures, and is extremely strong.

The new solid state is prepared by wrapping ordinary materials with "sugar coating", and pressing ordinary materials to the new solid state through continuous small nuclear explosions to generate high temperature and high pressure.

2. In view of the fact that the host has completed seven Da Liu sci-fi world crossing achievements, the host will receive the title of Da Liu World Watcher, and in the future, the host can independently choose the sci-fi plane (it must be Da Liu sci-fi world) that he wants to cross, if he does not choose, he will be randomly assigned by the system.

"Hoo ......"

Seeing the list of tasks that appeared in front of him, Pang Xuelin's breath suddenly stagnated.

He never thought that this time he would travel to the world with her eyes, but in fact, it would become a compilation of the Earth Cannon World and the World with Her Eyes.

"Bring Her Eyes", the background is that human beings use earth navigation spacecraft to explore deep into the interior of the earth, the "Sunset Six" earth navigation spacecraft crashed during the voyage and sank to the center of the earth, the crew committed suicide one after another, and there was only a young female navigator left on the ship, and she could only spend the rest of her life in the closed center of the earth......

During a vacation, the protagonist "I" took the "sensing glasses" of the female ground pilot who was trapped underground and took her on her last ground trip.

At the end of this ground trip, the communication between the female ground pilot and the ground was interrupted due to the communication energy.

Since then, the female ground pilot has been permanently trapped in the inner world and spent the rest of her life alone.

This one is very short, but in reality, it is just a small excerpt from Liu Cixin's "Earth Cannon".

And this trip to the science fiction world, the system actually combined "Bring Her Eyes" and "Earth Cannon" into one.

"This world is simply called the Earth Cannon!"

Pang Xuelin was a little speechless.

The background of the Earth Cannon is much grander than bringing her eyes.

The male protagonist Shen Huabei invented the "sugar-coating" material, but in the process of destroying nuclear weapons, he accidentally synthesized a new solid-state material through the "sugar-coating".

The new solid state is a form between the solid state and the degenerate state, with extremely high density, resistance to extreme high temperatures and pressures, and extreme robustness.

When Shen Huabei was 30 years old, he suffered from leukemia due to long-term exposure to radiation substances and had to go into hibernation, and his son Shen Yuan lived with his mother.

By the time Shen Huabei woke up again, it was already seventy-five years later, 2125 years.

His son, Shen Yuan, used the new solid material he invented to dig a tunnel on Earth, also known as the Antarctic Courtyard Project, which started at Mohe in China and ended at Antarctica.

Through this vacuum tunnel, human beings can reach the Antarctic from Mohe in just a few tens of minutes, which will greatly reduce the difficulty of Antarctic development.

(When an object enters the tunnel, it has a velocity of zero, then it accelerates through gravity until it reaches its maximum velocity at the center of the earth, and then decelerates with the help of gravity, theoretically the object comes out of the other side of the tunnel with a velocity of exactly zero.) ）

However, this project was a complete failure for humanity in 2125.

The disasters it has caused are innumerable.

The first disaster of the Antarctic Courtyard project occurred 25 years ago, when the project entered its final exploration and design phase, requiring extensive underground navigation.

During an exploration voyage, an underground ship called Sunset VI was wrecked in the mantle and sank into the core, killing two of the three crew members on board, and only one young female navigator survived, who is still enclosed in the center of the earth and will spend the rest of her life in a cramped underground ship.

The ship's neutrino communication device has lost its transmitting function, but may still be able to receive it.

The female navigator's name is Shen Jing, and she is Shen Yuan's daughter and Shen Huabei's granddaughter.

It is this story that is presented in the book "Bring Her Eyes".

In the sixth year of the Antarctic courtyard project, the tragic Central Fracture disaster occurred.

Since the earth tunnel is composed of two layers of interlaced well rings inside and outside, when loading the inner well ring, the material in the connected outer well ring must be hollowed out first, so as to avoid impurities mixed between the two layers of well rings and affect the tightness of the fit between them.

In the construction, the process of hollowing out a section of the outer well ring and putting it into an inner well ring is adopted, which means that in the construction of the core section, during the period when a section of the outer well ring is hollowed out and the inner well ring is not yet in place, the two outer well rings including the joint will bear the impact of the iron-nickel flow of the core alone.

Originally, the joint between the two sections of the well was riveted using a very robust riveting technique, which should be designed to withstand the impact of iron-nickel flows for a considerable period of time.

But more than 490 kilometers into the Earth's core, there is an unusually powerful iron-nickel flow at two sections of the hollowed-out well circle, which is five times the highest value observed in a large number of previous explorations.

The powerful impact force dislocated the two well rings, and the high-temperature and high-pressure core material poured into the tunnel in an instant, and soared along the completed tunnel.

After learning that the fracture had occurred, Shen Yuan, as the chief commander of the project, immediately ordered the closure of the safety gate located at the discontinuous surface of Gutenberg, which was called the Gutenberg Gate.

At this time, there were more than 2,500 engineers working on the tunnel of nearly 500 kilometers under the gate, and after learning that the fault had occurred, they simultaneously evacuated by high-speed elevators in the tunnel, a total of more than 130 elevators, and the last elevator maintained a distance of about 30 kilometers from the iron-nickel flow rising along the tunnel.

In the end, only 61 elevators had time to pass through the Gutenberg Gate, and the rest were swallowed up by the core torrent of more than 4,000 degrees Celsius after the gate was closed, and 1,527 people died in the center of the earth.

The last major accident occurred after the completion of the Antarctic Courtyard Project, when the Earth Tunnel was in full operation, and the Geocentric Train traveled through it at all times.

The carriages of the geocentric train are cylinders with a diameter of eight meters and a length of 50 meters, and each geocentric train can be composed of up to 200 carriages, which can carry 20,000 tons of goods or nearly 10,000 passengers, and it takes 42 minutes to cross the earth each way.

At the Mohe starting point, a maintenance worker accidentally dropped a bolt less than 10 centimeters in diameter, which was made of a new material capable of absorbing electromagnetic waves, and was therefore not detected by the radar of the safety monitoring system.

The bolt fell all the way through the tunnel, through the Earth to the South Pole Station, and from there it fell back again, hitting a Center of the Earth train that was ascending towards the South Pole as it reached the center of the earth.

The relative speed of the bolt to the train is up to sixteen kilometers per second, and such kinetic energy makes it like a bomb.

It penetrated the first two carriages, vaporizing everything along the way, and the explosion of these two carriages caused the entire train to grind against the wall of the well at a speed of eight kilometers per second, and was torn to shreds in an instant.

However, the greatest catastrophe for humanity is the mega-project itself.

Through his demonic talent, Shen Yuan integrated the world's resources and completed this unprecedented super project in human history.

But economic stupidity is also unprecedented.

Although transportation through the Earth Tunnel is extremely fast and consumes almost no energy, in the words of the people, 'drop it and get there' or 'jump it is there', but due to the huge investment in the project, the transportation cost of the Geocentric Train is extremely expensive, which negates its fast advantage, making the Geocentric Train have no obvious advantage in competition with traditional modes of transportation.

Moreover, in the process of Antarctic development, mankind's Antarctic dream was quickly shattered.

The swarming industry and overexploitation soon destroyed the last remaining clean world on Earth, turning Antarctica into a dusty garbage dump like the rest of the continents.

The total destruction of the ozone layer over Antarctica has had a global impact, even in the Northern Hemisphere, where strong ultraviolet rays have made it necessary to protect people from leaving the country, and the accelerated melting of the Antarctic ice sheet has led to a sharp rise in global sea levels.

After a painful process, human reason once again prevailed, and all the member states of the United Nations signed a new Antarctic Convention, which completely withdrew mankind from the Antarctic continent and once again turned the Antarctic into an inaccessible place, hoping that the environment there would slowly recover.

With the demand for transportation to the South Pole plummeting, the Geocentric Train ceased operation altogether and the Earth Tunnel was closed after the Lost Bolt disaster.

But the economic catastrophe brought about by the Antarctic Courtyard project has continued, and countless people who have bought shares in the Antarctic Courtyard Company have lost their money, causing serious social unrest, and the black hole of investment has brought the economies of countries on Earth to the brink of collapse.

After Shen Yuan was closed in the Earth Tunnel, he fell back and forth in the Earth Tunnel every day wearing a sealed suit, sleeping in it, and only returned to the starting point when he was eating and replenishing energy for the sealed suit.

He crossed the earth about 30 times a day, day after day, year after year, between the Mohe River and the Antarctic Peninsula, making simple harmonic vibrations with a period of 84 minutes and an amplitude of 12,600 kilometers.

Every time he passed through the center of the earth, he would greet his daughter who was trapped in the center of the earth through a neutrino communication device, and he would often talk to her daughter during the fall.

Because the communication equipment of the Sunset 6 spacecraft only has the function of receiving text and audio messages, he is only talking alone, but Shen Jing, who lives in Sunset 6, which operates in the earth's core with the flow of iron and nickel, should be able to hear it.

Because Shen Yuan's body was in a state of weightlessness for a long time, but because he had to eat at the starting station and recharge the seal, he also had to undergo normal earth gravity on the ground two or three times a day, such a toss made his old heart very fragile, he died of a heart attack in a fall, and no one noticed at the time, so his body ran in the earth tunnel for two more days, the energy of the seal suit was exhausted, and the refrigeration stopped, and the earth tunnel became his crematorium, and the body was burned to ashes when it passed through the center of the earth for the last time.

After Shen Huabei woke up in 2125, Shen Yuan was dead.

Several people who knew his true identity took Shen Huabei into the Earth Tunnel and threw it in as revenge for Shen Yuan, who had caused such a huge disaster.

Then Shen Huabei was lucky to be rescued by the police on the other side of the world.

Because the whole world was the enemy, Shen Huabei had to go into hibernation again.

By the time he woke up again, it was fifty years later, in 2175.

At this time, the original earth tunnel has been converted into an earth cannon by humans.

A new type of solid-state material has been developed, which, in addition to having the properties of previous materials, is also an excellent conductor.

On the outer surface of the tunnel in the other half of the earth, a thick wire made of this material is wound, turning this half of the tunnel into an electromagnetic coil that is 6,300 kilometers long.

There are powerful and abundant currents in the Earth's core, and it is these currents that create the Earth's magnetic field.

Humans use nuclear ships to drag new solid-state wires and pull hundreds of large circuits in the earth's core, each of which is thousands of kilometers long, and use these circuits to collect the current in the earth's core and concentrate it on the tunnel coil, filling the tunnel with a strong magnetic field.

As a result, this earth tunnel, which was almost in an abandoned state, has become an unprecedented earth cannon.

Its appearance has reduced the cost of human access to space to an incredible level.

However, due to the lack of technology to conduct long-distance exploration in the earth's core, until then, humans still had no way to rescue Sunset 6 in the depths of the earth's core, and there was no way to bring the dying silence away from the center of the earth.

"In this world, whether it is to help Shen Yuan complete the Antarctic courtyard project, or to transform the earth tunnel into an earth cannon, it is not very difficult, what is really difficult is how to rescue Shen Jing from the depths of the earth."

Pang Xuelin thought about it, got up from the bed, and came to the balcony.

According to the memory instilled in him by the system, his location is the Institute of Geology and Geophysics of the Chinese Academy of Sciences, and his mentor is Shen Yuan, director of the Institute of Geology and Geophysics and vice president of the Chinese Academy of Sciences.

Because of the relationship between proposing the Antarctic courtyard project, Shen Yuan is very famous in this world, somewhat similar to Musk, the founder of SpaceX in the real world.

In order to persuade countries to invest in the Antarctic courtyard project, Shen Yuan used his own company to take the initiative to launch the Sunset Geocentric Exploration Project.

In the first five launches, the geocentric spacecraft returned smoothly and obtained a large amount of scientific research materials about the underground world.

This has also won Shen Yuan a wide reputation around the world, and countries around the world are very interested in his proposed Antarctic Courtyard project, which starts from the Mohe River and ends at the Antarctic.

And today, it is the departure day of Sunset Six!

n.