Although the problems of the natural world have been gradually overcome and solved by human beings, the process of human conquest of the world is itself a process of transformation of the natural world, but under the premise that all aspects of science and technology have not been reached, it is very difficult to conquer nature.

In the 21st century, with the construction of various railways throughout China, the Tibet railway has always been a difficult point.

It is not difficult to build a railway line, but the key is the stability of the tundra, how to make the railway survive for a long time, and how to ensure that the locomotive can ensure sufficient workmanship on the premise of crossing the plateau.

For example, the three states of water, in the Celsius temperature, ice water is zero, boiling water is 100 degrees, this is a basic data, but also placed on the earth, all recognized.

But in the mountains, or on the plateau, it is different, with the natural conditions on the mountains and plateaus, the boiling temperature of water, greatly reduced, for example, on the Qinghai-Tibet Plateau, the boiling temperature of water is about 70 degrees, the Himalayas and Mount Everest, the boiling temperature of water will be lower, according to records, at the top of Mount Everest, the boiling temperature of water reaches 30 degrees.

Now, Zhao Xin has no extravagant hopes, all at once to build the Tibet Railway, in the 21st century, is a very difficult problem to solve, in this era, even more so, now, a simple Qinling Mountains, is enough to stop his footsteps.

It is recognized that the train cannot go up the mountain, even if it is the Tibetan railway of later generations, it is not up and down in the lofty mountains, and it is okay to maintain a certain slope, but it has always been under the slope, spiraling and rising, that is only available to cars, and trains are simply impossible.

How to solve the problem of Qinling? Detour, is something that has been vetoed, from here to detour, to bypass the entire Qinling Mountains, this is not one or two hundred miles, this is more than a thousand miles, and the land in the north is not controlled in the hands of the Northern Song Dynasty.

Above the court, the important role of the railway has been recognized, such a traffic artery that can be compared with the Beijing-Hangzhou Grand Canal, almost certainly, must be controlled in the hands of the Northern Song Dynasty, the unique role of the railway, it is impossible for the railway to appear on the border, even if it delays efficiency.

Zhao Xin once again examined the results that had been measured, in a sense, I have to admit that the various survey teams of the Dinghai Navy are worthy of recognition in terms of quality, and they have measured most of the places in the entire western region in a short period of time, and in the middle, all the places that can be solved by experience and even special methods have been marked, among which the westbound railway has solved most of the problems, except for one Hangu Pass, which cannot be solved.

Once again, I put my mind on Hangu Pass, which is different from the usual Hangu Pass on paper, this time, after the measurement of many personnel, Hangu Pass has been displayed through the data.

If it is still the Han and Tang dynasties, and Chang'an is still the capital, such a report is enough for many people to choose to break Chang'an.

The danger of Chang'an is not insurmountable, in history, many eras, there are records of breaking through Chang'an through other places, but in the construction of the railway, I am afraid that it is still necessary to pass through Hangu Pass.

Zhao Xin with the growth of age, especially the card system for the improvement of basic quality, this kind of birth in hundreds of years, even thousands of years after the era of advanced science and technology, even if it is a toy, but also to the fundamental, not to mention the theory of unification, just say that through energy and some unknown energy, the modification of the human body, very mysterious, Zhao Xin not only greatly increased his strength, but also in thinking and other aspects, there is also a huge improvement.

One by one, the data was filled in the drawings in my mind, and a huge three-view was not drawn in front of Zhao Xin, but constructed in his mind through Zhao Xin's imagination.

The pictures of the entire Qinling Mountains and Hangu Pass appeared in my mind out of thin air, and then they were examined and considered.

In the absence of aerial photography, Zhao Xinxin's strong brain power and computing power made a top view out of thin air.

After the changes of history, Hangu Pass is no longer the original, located in the Qin Dynasty, and even during the Han Dynasty, a husband is a pass, and the Xiongguan is not opened, with the decline of Guanzhong, the importance of Hangu Pass has also been greatly weakened.

Even in the Qinling Mountains, there are also surrounding mountains, and there are many trails that can cross the mountains and enter Guanzhong.

If in the Han and Tang dynasties, such a trail would make anyone like a treasure, some guys who had bad intentions for the dynasty would definitely apply these.

But in this era, the core of the whole farewell is Bianliang, Jingzhao Mansion, in a sense, is still a huge city, but his status is not high, no one will use these small roads to attack Jingzhao Mansion.

Looking down and examining some of the key locations, Zhao Xin had to admit that Jingzhao Mansion was really a very precipitous place, and it was a little difficult to establish a pass here, perhaps at the beginning, when it was built, because a lot of bricks and boulders needed to be transported from the mountains or from a long distance, but once it was completed, it was a huge Xiongguan, even if it was a thousand troops, don't want to break it.

In a sense, Hangu Pass already has the meaning of a fortress, but because of the limitations of history, he did not build according to the method of the fortress, and in terms of defense and attack power, it was slightly worse.

How to pass through this pass, perhaps, passing from the side, has become a huge problem that plagues the railway, which the people below can't solve, and finally sent it to Zhao Xin.

Either you can go over the mountain, or you can only be stuck, this is the problem that needs to be faced now, Zhao Xinzhong, there is no better way, it is difficult to do it, and it is impossible to move Hanguguan away.

Many times, inspiration lies in a thought, this kind of similar to the idea of venting anger, in others, may not have any effect, but Zhao Xin can use his thinking, in his mind, to construct a complete three views, very naturally, he can also change it.

A Xiongguan through the ages, from more than 200 years BC, or even earlier in the period of war results, Hangu Pass is the east gate of Qin, how many times, Qin faced this precarious result, and finally, passed safely, this is the role of Hangu Pass.

The Six Kingdoms held the pass, Qin Wen guarded the Hangu Valley, there were too many wars that broke out here, and it was also the foundation of the Qin Dynasty, even if it was a thousand years later, the center of the entire Northern Song Dynasty was not in the Guanzhong, but no one thought about demolishing the Hangu Pass.

But Zhao Xin thought of it, and put it into practice, and in the drawings in his mind, he directly cleaned up Hangu Pass.

It's such a simple answer, just like the Zhenlong chess game of Tianlong Babu, it seems to be a piece of himself, but it has become the finishing touch, before, Zhao Xin thought about it for a long time, but he didn't get the answer, and now, in the three views in his mind, Hangu Guan was removed, and everything suddenly became clear.

Hangu Pass here, as a thousand years of Xiongguan, is the former Qin Dynasty, the foundation of the Tang Dynasty, once the Hangu Pass is breached, the entire dynasty will be turbulent.

Now, after demolishing him at once, everything is clear, Hangu Pass is very steep here, but it is not impassable, his steepness lies in the relatively narrow valley of 15 miles, because of the winding, there is no way to build a railway, which is a huge limitation.

The existence of the same Hangu Pass, like a blockage, is blocked on this key point, this level, can be said to be the core of the entire Qinling Mountains, to be able to find such a location in the huge Qinling Mountains, and build a city, this is where the wisdom of the ancients lies.

But now, once it is demolished, then everything is fine, perhaps, the railway still cannot be built, but the road can.

In the Northern Song Dynasty, it was still dominated by official roads, but in the Dinghai Navy, cement roads and high-grade highways have been popularized, and horse-drawn carriages and other vehicles, even pedestrians, can easily advance on these roads, with high speed and efficiency, which is also the outstanding feature of the Dinghai Navy.

As long as the Hangu Pass is removed, a relatively wide road can be built in the Hangu Pass, which is a key point, and through simple calculations, this may be less efficient than the direct passage railway, but it is much more powerful than before, and this is a solution.

Since the railway can't be repaired, then don't repair it, put a terminal here, form a node, the steepness of Hangu Pass, that is, about 15 miles, with some gunpowder, plus cement and other methods, or can penetrate a good cement road, specifically responsible for linking and transshipment, which can avoid this problem, when the time comes, just divide the railway into two sections.

This is no choice, but it is the only way to solve this problem at this point in time, this method is decided by direct removal, and it is related to a joke that Zhao Xin saw on the Internet before, which is a seemingly stupid method, but it actually solves the problem.

A fully automated factory, there is a link, to solve down, at least need to invest 10 million US dollars, in the premise of lack of funds, the factory director used a method to solve, this is just a pass and not pass two judgments, let people judge, open more than one person's salary.

The origin of this joke is that the factory director is stupid, fully automatic, if you use people, it will not become semi-automatic, this is not a solution, a person's salary, even if it is paid for 100 years, how much can be paid, but to obtain such a degree of automation, in the case of their own strength can not be solved, spend a huge amount of money to introduce, it is also a loss.

For developed foreign countries, this is indeed a joke, but in another sense, this is not the way to finally think of under the premise that there is no way.

Why do you have to follow the technology of foreigners? Can this kind of full automation by foreigners really solve all problems, and even if it can be solved, how much does it really cost?

Under the premise that there is no way to achieve it, it is acceptable to increase the cost a little while ensuring efficiency.

Now this is the case, when there is no way to achieve a directly connected railway, and it is necessary to build such a railway, it is divided into two sections, and then connected in the middle, this is the only way.

Continuous thinking, so that Zhao Xin slightly tired, in his mind, after perfecting the final plan, 15 miles of Qinling, through explosives in the middle, at least can be developed, the narrowest place is 12 meters, the widest place is up to 180 meters of road, as long as the use of high standards of cement, this efficiency will not be much worse than the railway, the only way, is unloading and loading, this can also be solved by containers, or other methods.

Too tired, Zhao Xin didn't want to find other solutions, but in his cognition, other methods were difficult to solve these problems, and this was already the best way he could think of.

After solving this problem of Hangu Pass, the entire Dongping Railway, there is no other trouble, in fact, in addition to Hangu Pass, other railway construction, there is no big problem, the whole Guanzhong, including the Hetao Plain after that, there may be mountains and checkpoint restrictions, but it can be solved casually, compared to Hangu Pass, these are too easy.

Soon, the construction method of the entire Dongping Railway, after Zhao Xin summarized it here, handed over to the three divisions for review, the officials who initially reviewed it, looked at the whole report, this kind of Ding Haijun-style report, in the recent past, began to increase, they are also not used to it from the beginning, become accustomed to it, compared to the previous Northern Song Dynasty, the clouds and mountains are not clear to see, these are very clear, there is yes, there is no, all of them are supported by all kinds of evidence, this is the Dinghai style report.

At first, they were careless, the construction of railways is the strength of the Ding Navy, and this point, as long as it can be explained, but in the middle, they found problems, one of which is that Huo Ran demolished Hangu Pass.

Hangu Pass, from the Warring States Period, began to be famous all over the world, is the key pass of Qin, according to the Hangu Pass, even thousands of troops and horses can not pass, once the Hangu Pass is broken, basically, the capital of Qin, will face the threat of Bingfeng.

After the Han Dynasty, the Tang Dynasty, the millennium of time, Hangu Pass is no longer as strong as it used to be, but his reputation is written in the bones of the Han people, and there have always been a lot of descriptions and poems about Hangu Pass.

After sealing this report and starting to report it, I am afraid that even Zhao Xin did not expect that such a measure to solve the Dongping Railway would once again cause disputes in Renzong's court and cause a series of consequences.