Lao Lin didn't pay attention to Lei Mengyu's pun urging, he knocked on the metal wall of the traversal capsule and asked Dang Aiguo: "What kind of material is this, it doesn't look like titanium alloy." ”

"Oh, it's iron." The party replied patriotically.

Everyone's eyes widened, and it was too unbelievable to use cheap iron to make a traversal capsule, and Dang Aiguo continued to explain: "It's not ordinary iron, it's dislocation-free iron." ”

Everyone continues to be ignorant, no one has ever heard of the term dislocation-free iron, including Lao Lin.

Only Liu Yanzhi was puzzled: "Isn't that something out of science fiction?" When he was in the fifth grade, he had seen the word in a science fiction novel written by a Soviet author, but he didn't expect it to exist in reality.

Dang Aiguo said: "Now is not the time to discuss this, Lao Lin, you come in first, and I will slowly give you science popularization." ”

Lao Lin sat in the traversal cabin, fastened his seat belt, took a deep breath, looked straight ahead, and caught a glimpse of the hatch cover slowly closing out of the corner of his eye, and couldn't help but feel his heart fluctuate.

After all, traveling through history is not a trivial matter, Lao Lin instantly remembered a lot, remembered the ups and downs of the past few decades, remembered the martyrs in Montauk's plan, remembered what Armstrong said when he stepped on the surface of the moon, this is a small step for me, but it is a big step for mankind, how many years of long-cherished wish has finally been completed, he has mixed feelings, and is a little worried about whether his aging body can withstand the huge tearing force and time turbulence caused by the crossing.

"Dislocation-free iron is to eliminate dislocation, the molecules are neatly arranged iron, hundreds of times higher than the strength of ordinary iron, for example, to build a railway bridge with ordinary steel, it takes tens of thousands of tons of steel, hundreds of workers and hundreds of working days of welding, if you use dislocation-free iron to build, then use iron wire to weave a line." The party patriotic talked eloquently.

Lao Lin understands this principle, but he can't believe that the Chinese have mastered the technology of smelting faultless iron, if this technology really exists, then it is impossible not to win the Nobel Prize, with the Chinese government and the people's desire for the Nobel Prize, will not deliberately hide this secret, the only possibility is that this traversal is not a product of the present generation, but itself from the future.

He expressed his speculation, and the party did not answer directly, but said that we would have a long time to discuss this issue during the long journey, and I would also like to hear interesting anecdotes about the Montauk plan.

Liu Yanzhi heard the conversation between them, and suddenly realized that maybe this was a deal, the party patriotism and Lao Lin exchanged secrets with each other, Lao Lin left the secret of crossing forever in 1969, and the party patriotism used the secret of Montauk on Cuiwei Mountain, each taking what he needed and getting what he wanted.

"We're here." The party patriotic said, unbuckling the seat belt.

There was no discomfort, the crossing was completed, the hatch opened automatically, the birds were singing and the sky was blue, this was Cuiwei Mountain in September 1969, and they had returned to forty-eight years ago.

Except for Lao Lin, the rest of the people are senior traversers, they methodically packed up their equipment, and hid the traversal cabin with branches and leaves, only Lao Lin was extremely excited, muttering to himself, eager to kneel down and kiss the land in 1969.

The great satisfaction of the wish fulfillment made Lao Lin seem to be ten years younger, and after a brief gaffe, he returned to normalcy and went down the mountain with the others, six traversers dressed as the People's Liberation Army lined up and walked on the gravel road of the late sixties, without any sense of disobedience.

In early autumn, the weather is pleasant, and the roads are lined with dense shade, making the trek more like a leisurely hike.

"Professor, now you can tell me, is the traversal from the future?" Lao Lin asked, he walked vigorously, not slower than others at all.

"Of course." Dang Aiguo said as he walked, "This traversal capsule is from the future, from the world that has been destroyed, we are just users, not inventors, my goal and you are actually the same, both are to prevent our earth home from being destroyed by a bunch of evil careerists, our time is running out, to be exact, there are still two years and one month." ”

Lao Lin is not surprised, the world destruction theory is very marketable in the West, a large number of Hollywood movies reflect this complex, human beings do not cherish their own living environment, wanton pollution, research and development of viruses or intelligent robots, and destroy the world with his own hands, he himself also holds this view, and at this moment from the mouth of the party's patriotic mouth, it just makes him more convinced.

"I would like to take the liberty of asking, are you from the future?" Lao Lin Dao, he has studied the party's patriotic materials, and is very interested in his legendary life and experience.

"I'm not." Dang Aiguo said with a smile, "But there are people from the future in our team, so we will be so determined to embark on the road of human self-salvation, with a time tunnel, change history, change the future, everything becomes feasible, but we need to pay the price of hard work, even life." ”

Lao Lin nodded, he thought deeply of Professor Dang's reasoning, but he was more interested in the details, he asked: "I noticed that the crossing process was painless, this is a technical difficulty that cannot be broken through in the Montauk plan, how did you do it?" ”

Dang Aiguo said: "Do you know that there is a kind of wall-piercing technique in ancient China? ”

"Uh-huh." Lao Lin made a gesture of listening.

"Time travel is the same as time travel, how can a human flesh and blood body pass through a wall made of masonry, unless this person turns into a ghost, that is, a void invisible molecular structure, but then the person does not exist." Dang Aiguo said, "Time is irreversible, unless there is a wormhole, there happens to be such a one on Cuiwei Mountain, plus the future technology uses dislocation-free iron to make a crossing cabin, which can withstand the high temperature and high pressure in the wormhole, and we can cross smoothly." ”

Liu Yanzhi, who was in charge of the palace, heard these words, and couldn't help but be a little annoyed, when he started to cross, there was no crossing cabin, but lying directly in the dirt pit, suffering from the flames, the party patriotism obviously has a crossing cabin, why didn't he take it out earlier, and then he crossed with Guan Lu, taking a double cabin, and now everyone is forming a team to cross with a six-person cabin, which is obviously newly made, but what the party patriotism says comes from the future, it is really a lie.

Old Lynch said: "As far as I know, wormholes are ubiquitous, fleeting, and extremely small, smaller than the smallest quark, how can the wormholes on Cuiwei Mountain be so large and exist for a long time, how did you do it?" ”

Dang Aiguo said: "Future science and technology, I can't understand it when I talk to you." He stopped and waved, and a truck transporting supplies stopped behind him, and the driver poked his head out enthusiastically and asked, "Comrade of the People's Liberation Army, where are you going?" ”

……

Relying on military uniforms and impeccable letters of introduction, the crossing team successfully bought train tickets to their motherland, Beijing, where more than half of the express trains were military personnel, and the rest were mainly public officials, except for a couple with a child who seemed to be visiting relatives in Beijing.

The crossing group bought a hard-seat ticket, which happened to be two rows of seats opposite each other, so as to avoid intersections with other people and unnecessary trouble, the speed of the car in this era is slow, the sound of monotonous wheels hitting the gap between the rails makes people drowsy, and the window is the endless North China Plain, villages, farmland, woods, telephone poles, and red slogans on the earthen walls all have obvious imprints of the times, and each station will stay for a long time for passengers to rest and buy food on the platform.

On the seats on the other side of the aisle, sat four air force cadres in blue trousers, who took out peanuts and two pot heads, and chatted while drinking, talking about how to fight the Soviet backfire bombers, this thing penetrates the defense at supersonic speed, and our army's fighters and anti-aircraft missiles can't reach it at all, and the officers have sad faces, stuffy their heads and smoke, completely ignoring the fact that there are women and children in the carriage.

Guan Lu couldn't help but want to say something to stop it, but was stopped by the party's patriotic eyes, and turned his head angrily out of the window, and there was an abrupt flat-topped mountain in the distance, without any trees.

"What a strange mountain." Guan Lu said.

Lao Lin explained to him: "It is an artificial mountain piled up by engineering troops, there is no danger to defend in the North China Plain, the General Staff will find a way to build its own commanding heights, there are dozens of such artificial mountains, usually an artillery battalion equipped with 130 cannons will be placed on the mountain, used to suppress the enemy army within a radius of dozens of miles, in fact, this is just wishful thinking, and the Soviet helicopters can easily solve these artillery battalions." ”

His words aroused the interest of several Air Force cadres sitting next to him, and one man came over with cigarettes to distribute them and asked them which unit they belonged to.

"Secrecy Department." The party patriotically politely dispelled the other party's expectation of talking.

The journey continued to be noisy and tedious until we arrived in Beijing.

The red capital of 1969 was in the middle of the eye of the storm, the clouds of the Sino-Soviet war hung over everyone's hearts, the railway station square was empty, only a few old cars were parked alone, passengers rushed to war, and the members of the crossing group did not go far, and went directly to the ticket office to buy train tickets to Ulanqab.

The most convenient way to go to Inner Mongolia is to take the train, as early as nine years ago Beijing opened an international train to Ulaanbaatar and Moscow, although Sino-Soviet relations are tense, the train has not stopped, the party patriotism with the Beijing Military Region Command issued a letter of introduction, successfully bought six tickets, and it is still a soft sleeper.

The time card of this crossing is very accurate, the international train departs tonight, the party patriotically strictly ordered the team members not to make extraneous branches, everyone stayed in the waiting room and was not allowed to go out to wander around, the difficult eight hours passed, they boarded the train again, and the destination was Inner Mongolia.

The hardware facilities of international trains are obviously better than those of ordinary trains, the soft sleeper cars are more high-end, and no one bothered them, the hierarchical system of socialist countries is more stringent, and those who are qualified to sit in soft sleepers are at least the leaders at the prefectural and municipal levels or military cadres at the same level, and the crew will not be disturbed if it is too late.

The train radio is broadcasting the deep friendship between Vietnamese President Uncle Ho and the Chinese people, at a time when Ho Chi Minh has died, the leaders of the global communist countries are rushing to Hanoi to pay their respects, history is rolling along the track, and the fork in the road is ahead.

At dawn, the train arrived at Ulanqab station, and six servicemen got off the train and stood in the cold morning dew.

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