In fact, not only Shu Han noticed the power of the machine gun, but also other people gradually noticed this weapon that was very outstanding during the First World War, after all, a large number of writers during and after the First World War created a large number of books to describe the tragedy and bloodshed of the war, among them, the machine gun is undoubtedly a weapon that will be described in thick ink, and these books, naturally, will not be lost, some of them have been preserved.

After people read the books, they will have a minimum impression of the machine gun, and at the same time they will study him, but compared to Shu Han has a complete drawing, they only have one concept, and it is more difficult to study it, but they also have an advantage, that is, there are many more experts and talents in their hands than Shu Han, and now Shu Han only has experts within the scope of Huajin City, as for the transfer of experts from other regions, they still need the recognition of others, otherwise they can't do it at all.

And even if it is the power of the entire Black Iron City, it is nothing in front of the Holy Alliance and the Guangyuan Kingdom, after all, in terms of population, they are about twice as small, and this number continues to grow, after all, with the advent of peace, the baby boom is generally popular in the Three Kingdoms, and many families have a child a year at a rate of non-stop reproduction, which directly leads to the rapid growth of the population of all countries, and the number of children born naturally in countries with a large base, according to the information obtained by Black Iron City, The population of the Holy Alliance and Guangyuan Kingdom is now about to exceed four million, which is more than double the population, which undoubtedly makes the entire Black Iron City a little depressed, and also makes Shu Han feel the urgency of time even more.

Therefore, although he has the complete production drawings of the machine gun, Shu Han does not dare to slack off, in order to research this killing weapon as soon as possible, Shu Han can only continue to work hard in the material, which is a place where it is difficult to find results, of course, Shu Han did not give up completely, looking for it from the old materials, after all, within the scope of the Black Iron City now, a large number of areas are still in a state of fog, and they have not been carefully explored, and even if they have been explored, the Black Iron City does not have professional equipment to look at the places a few hundred meters below, Now all Black Iron City can do is to look for it in the ground with an iron pipe like those tomb robbers, at most only a few tens of meters, and the rest of the means is to use the magnetic field to find it.

As for what technology such as sonar, it is obviously not possible now, first of all, Black Iron City has not yet developed a portable generator, and the equipment for storing electricity has not been fully designed, which takes time to complete, so today's exploration is only in a very superficial state, and most of the minerals found are some open-pit mines, or some shallow minerals, as for the deep minerals, they have not yet been discovered. Therefore, it is not certain whether there are any raw materials that can produce special steel in the entire Black Iron City.

Of course, there is another way to buy raw materials from other countries, but it is very difficult to do this, first of all, these raw materials are often very scarce, even if the Holy Alliance does not know what use those things can be, but they will not sell them at will, this is for sure, after all, almost all the books of various countries have been exchanged with each other, and there is a distinction between elements and some raw materials, and everyone knows that if you want to exchange, it is obviously not so easy, In addition, the exploration of the Holy Alliance and Guangyuan Kingdom on their own land is also in a very low-end state like Black Iron City, and they can only explore the surface, and as for deeper exploration, they need more developed technology.

Therefore, the materials that we can obtain are some of the most basic materials, such as gold, silver, copper, iron, carbon and lead, etc., other raw materials are obviously not possible, and the other point is to improve the smelting technology, relying on the above raw materials can not be used to smelt the steel used in machine guns, according to modern theory and practice.

But this requires extremely superb smelting skills, because smelting through these raw materials, so as to give birth to new steel, it takes a lot of experience, the distribution of raw materials is very meticulous, and very strict, absolutely can not have the slightest mistake, just like the manufacture of gunpowder, people know that it is saltpeter, carbon, sulfur, these three things, but how to match the three things, so as to produce powerful gunpowder, this is a housekeeping skill, just like how Coke is made, the raw materials required have been listed, It's like it says clearly.

But if you want to make Coke, you can't do it, because the proportion of the formula won't tell you, Shu Han's side is a little simpler, the ratio of copper, iron, zinc and lead has been written above, but with the science and technology of Black Iron City, it is impossible to control the percentage so finely, and these steels must be so fine to control the percentage, so it can't be done in a short time, but Shu Han sees a glimmer of hope from it, after all, compared to finding other materials and researching new formulasThis one is much simpler, and what needs to be done is continuous trial and error.

Now that the formula is already there, it is necessary to keep trying in this space, creating molds of different sizes, and then trying one by one, this stupid method can be handed over to the computer to do in the case of modern computers, but in this era, without the assistance of computers, it is natural to rely on people to do it, build molds, smelt, and then test, and finally determine whether a piece of steel is qualified, which is undoubtedly a hard work, and it will inevitably take a long time. Materials science itself is destined to be a relatively metaphysical discipline, not to mention without the assistance of computers.

But now in addition to this method, the rest of the methods are more difficult, so Shu Han can only choose this stupid method, he specially organized a material research institute, a total of more than thirty old craftsmen plus about a hundred apprentices, its responsibility is to study steel smelting, so as to improve the quality of steel, in order to ensure the development of machine guns, which undoubtedly costs a lot of money, but now Shu Han has no choice, and fortunately now found a gold and silver mine in Huajin City, Only then can Shu Han have the money to engage in the bottomless discipline of materials science, otherwise it will be difficult to support such a huge gold-absorbing beast even with the wealth of Huajin City.

After two years of hard work, the original bridge plan and the road plan in the city have almost been completed, and in addition, the two most important projects, both the Black Iron City and the Huajin City Railway and the river between the Black Iron City and the Picheng City have also been completed, and it only takes less than a year to complete it, which is undoubtedly good news.

During this period of time, the Black Iron City has searched for more than 20,000 or so people in the territory, which are included in the Black Iron City, plus the 120,000 people who were born, which makes the population of the Black Iron City reach about 1.9 million, after all, the population of about 2 million, it can be said that the current Black Iron City is relatively different from the previous Black Iron City. Dancing God eBook

But compared with the Holy Alliance and Guangyuan Kingdom, it is still much behind, but there is no way, the base is here, and there is no way to change the laws of nature in Black Iron City, so that the people of Black Iron City can have a child in three months, which is obviously not possible, in addition to the most important thing is the development of the army, which Liu Sanyi attaches great importance to, perhaps also in the past year, although the border is very peaceful, but all countries are now recruiting, and at the same time arming their own armies, this atmosphere infected Liu Sanyi.

Therefore, Liu Sanyi is also very keen on the recruitment of the army, from the original 50,000 troops are now expanded again, reaching about 80,000 people, of which Black Iron City has 30,000 people, Asakusa City has 15,000 city defense troops, mainly to defend the northern border, and then Foothill City and Picheng have 20,000 people to maintain control of the area, and Huajin City has about 15,000 troops, compared to the least, after all, Huajin City is at the rear, and it is not necessary to control so many troops, Therefore, Shu Han was not counted in the expansion of the army, of course, there was also the meaning of suppressing Shu Han, but no one could say how it was.

However, for Shu Han, this army is enough, after all, he does not need to face so many enemies, and the pressure is not so great, the main role of the army is to explore the surrounding area, and at the same time there are various projects as an engineering army, including reservoirs and dredging rivers, etc., but these jobs have not reduced the combat ability of Shu Han's troops, in order to maintain combat effectiveness, Shu Han sent his troops out to fight in rotation, and some of them will be allowed to do these things when they are left behind, First, you can build Joaquin City, and secondly, you can find something for them to do, so as not to be overwhelmed in the barracks.

And after about three years of coordination, the relationship between Foothill City and Picheng and Black Iron City has gradually become harmonious, under the rule of Black Iron City, most of the residents of Foothill City and Picheng have a good life, there is rarely a famine or anything like that, and they can still eat a little meat every month with their own efforts, and their living standards have been greatly improved, and because of the improvement of material conditions, they have become more supportive of Black Iron City, plus three years, Many of the original conflicts and contradictions have now been resolved by time, and most of the people of Foothill City and Picheng are no longer disgusted with the rule of the Black Iron City, and the Black Iron City has gradually relaxed the restrictions on the people of the two cities, which makes the entire Black Iron City more united in terms of internal cohesion.

It can be said that this year's time is a year of development for the Black Iron City, continuing the main axis of the previous year, the entire Black Iron City is moving forward rapidly, but there are also hidden worries under this peace, Shu Han in the process of talking with Lin Bida and Zhang Ruoming, he also knows that now the Holy Alliance and Guangyuan Kingdom are obviously unwilling to maintain a false peace, and both sides have the intention of fighting each other.

And Black Iron City will inevitably not be spared, so Zhang Ruoming and Lin Bida, and others all hope that Huajincheng can also prepare, this Liu Sanyi also told Shu Han that the war may break out in the near future, and then Huajincheng will be used as a logistics city to provide support for the front line, so I hope that Shu Han can make some changes on the basis of today's Huajincheng industry, pay more attention to heavy industry, and put more resources on the production of guns.

Shu Han also agreed with this point, and in the future, Shu Han also leaned more towards the field of heavy industrial production, and at the same time built a lot of armories in Joaquin City to store bullets and shells and other materials, and in the following time, it was indeed as these Skywalkers expected, the atmosphere of war became stronger and stronger.

The envoys of the Holy Alliance and the Guangyuan Kingdom have also been going to the Black Iron City more and more, and the atmosphere of war has begun to brew, which is of course a bad thing for the Black Iron City, because as long as the war breaks out, no matter what the Black Iron City chooses, it will be extremely dangerous.

First of all, it is impossible to succeed in the choice of maintaining neutrality, because the Holy Alliance and the upper rulers of Guangyuan Kingdom are not fools, it is impossible for them not to hear the story of the snipe and clam competing for the benefit of the fisherman, although the strength of the Black Iron City is weak, but it is enough to defeat the two dying lions, this point they will not fail to understand, the strength between the Holy Alliance and the Guangyuan Kingdom is almost the same, so they will definitely not let the Black Iron City maintain a neutral attitude, but will definitely pull the Black Iron City into the water, if the Black Iron City insists on its own opinion, Then the only result is that the Holy Alliance and the Guangyuan Kingdom will unite and destroy the Black Iron City first, and then come to deal with the other party, which is the inevitable idea of the other party.

Then there are only two options left, one is to stand with Guangyuan Kingdom to fight against the Holy Alliance, and the other is to stand with the Holy Alliance and fight against Guangyuan Kingdom together, and no matter which of these two options is, it will be dangerous for Black Iron City.

After all, with the comparison of the strength of the two sides, no matter who the Black Iron City and who is the alliance, after the final victory of the war, the Black Iron City will inevitably be unable to win more land, the war will make the strong stronger, and the Black Iron City can get very limited, when the time comes, whether the Holy Alliance and Guangyuan Kingdom become the final victor, it will make the situation of the Black Iron City very dangerous, because the survival of the Black Iron City will be completely pinned on the winner's idea, the other party must have a little conscience, and the Black Iron City will still be able to survive, if the slightest alliance friendship is disregarded, That ending was undoubtedly tragic.

Putting their life and death in the hands of another country, such an outcome is naturally unacceptable to the high-level leaders of Black Iron City, so they try their best to avoid war, but obviously, this matter is not up to them, war is coming after all, no one wants to be on the side of the couch, there are others sleeping soundly, this is the biggest disaster of Black Iron City today.

But the disaster is not only that, after so many years of development, while the Black Iron City is growing, it has also produced many internal contradictions, and it can even be said that the problems caused by the internal contradictions are more dangerous than the problems caused by the outside.