In the next few days, Liu Yu and Zhang Tianqi were studying step by step, and Liang Yu never came to him again. After a week of study, Liu Yu had a deeper understanding of the situation in the entire empire.

In order to defend against orcs and demons, the empire's main focus was on the defense of the eight fortresses. Focusing only on the cultivation of military capabilities and ignoring one's own development, although the combat effectiveness of individuals has improved, the overall combat effectiveness has not been improved. The development of science and technology has also been at a standstill, and no new achievements have been applied to the military.

On the one hand, the military has distrust of the research department, paying more attention to the cultivation of personal ability and ignoring the application of technology, and on the other hand, the research department has not been paid attention to, and there is a lack of financial investment, so there is a shortage of excellent talents. In this way, the cycle of evil surnames has led to a low investment in technology.

Of the three military academies of the Empire, only the Bokan Military Academy had an engineering department. If it weren't for Liang Shan's insistence and Guan Xing's expectations, it would have been stopped long ago. So when Liang Shan met Liu Yu, he very much hoped that he could join the engineering department, and even after Liu Yu refused, he still managed to keep him at the Bokan Military Academy. It is expected that Liu Yu can bring vitality to the research department, so that the empire can make breakthroughs in science and technology, and better apply it to the military, so as to enhance the overall strength of the empire.

Guan Xing, as the high-level of the emperor's [***] side, discovered the shortcomings of human beings very early, and felt that it would be difficult to gain a foothold in this land if this continued. Therefore, he has always supported Liangshan's research, hoping to open up another path for human development and strengthen his own combat effectiveness through the development of science and technology.

Liu Yu is silently calculating that the power he has is ahead of this era, which enables him to see farther than ordinary people and grasp the future more accurately. What he lacks now is a stage for him to play, but it is undoubtedly difficult to get such a stage with the position he is in now. Unless・・・・・・

The next day was a weekend break, and Liu Yu came to the small courtyard in Liangshan early in the morning. Liang Shan was studying the blueprint of the iron-backed repeater crossbow given to him by Liu Yu, and when he saw Liu Yu coming in, Liang Shan stopped and said, "Boy, why did you come to the teacher early today? This is not like you." ”

After listening to Liang Shan's words, Liu Yu said a little embarrassed: "Aren't you busy studying these days, so you don't have time to come over." After this period of study, I had some ideas in my heart, so I came to ask the teacher for advice. ”

"Oh, it's good to have your own ideas, you can tell me. Liang Shan responded.

"That's right, after studying these days, I have some understanding of the military equipment and organizational structure of the empire. The thinking of our military is still stuck in the tradition of the past, blindly pursuing the improvement of individual combat effectiveness and ignoring the overall surname of war. We humans have always been at a physical disadvantage compared to orcs and demons, this is formed by our body structure, it is difficult to change in the short term, even if everyone learns the "Yi Jin Sutra" exercises, it will not solve the problem fundamentally. Liu Yu said, "And our human advantage lies in our wisdom and creative ability, and only by applying our wisdom to create more and better weapons and tools can we help us achieve victory, rather than relying on physical competition." ”

"Your idea is very good, this is the direction that I and Guan Sange have been working on. It's just that no progress has been made so far, do you have any good suggestions?" asked Liang Shan.

"War is actually a competition for resources, people are a resource, and goods, weapons, grain and grass are also resources. To win a war is to spend the least amount of resources and get the most benefits. If we want to reduce human losses, we must find ways to use other resources to replace human consumption. This has two advantages, one is to reduce the losses of our citizens, so that the number of people can grow steadily. Second, the reduction of human consumption in war can enable us to have more people engaged in production, increase the development and utilization of resources to serve the war, and thus form a cycle of good surnames. I called this idea "The Theory of Resource Consumption." Liu Yu further elaborated on his thoughts.

"You're a novel idea. The idea that war is a competition for resources is very interesting and speaks to the true meaning of war. Not bad, not bad, go on. Liang Shan appreciated.

"First of all, we must increase the development and utilization of two types of materials, one is metals, and the other is energy. We have not done enough for the development and utilization of metals, we now use the most copperware, and the use of steel is just beginning. Copper's specific gravity is large and its hardness is not high, so it is not good enough as a weapon or production tool, and should have been eliminated a long time ago. The specific gravity of steel is lighter, the hardness is high, and the reserves in the empire are very rich, so now it is time to increase the mining and smelting of steel, which is used to create war weapons and production tools, not only to serve the war, but also to develop production, so as to be more conducive to the development of the empire. Liu Yu continued, "The use of energy is still in the use of firewood, the use of coal is still in its infancy, and the heat generated by firewood combustion is very low, which is not conducive to the use of a large number of people, and it is also a waste of resources." Coal combustion, on the other hand, produces a higher amount of heat and can be used on a large scale, making it the most suitable for smelting metals. If we want to smelt steel in large quantities, coal is an indispensable energy resource. The second is to increase the education of the people of the empire, after all, it is impossible for all people to go to war, and those who cannot go to the battlefield can let them learn more production skills, improve production efficiency, and produce and hoard more materials, so as to ensure that the war will not be unsustainable because of the shortage of materials. ”

"What you said is very reasonable, I will discuss your ideas with the eldest brother and third brother to see if it can be achieved. There are only two problems that need to be solved, one is the exploration and mining of iron ore and coal, and the other is the smelting of iron ore. Without professionals in this area, the progress will be much slower!" Liang Shan said helplessly, rubbing his brows. "Smelting and mining are a little bit better, and with a little training, there are many people who can do it, but exploration is much more difficult. ”

Looking up at Liu Yu, Liang Shan said, "Since you mentioned it, do you already have any good way?"

"Of course, now our empire has begun to mine small quantities of coal and iron ore and smelt steel. It means that there are already people who can be explored, as long as we can recruit such talents for the use of the empire, equip them with better equipment, and let them teach more people, as long as we invest more manpower, material and financial resources in this, I think it will not take long to form a scale. The engineering department of our college has also put more effort into this area, as long as it can make achievements and get His Majesty's affirmation, it will be easy to do later. Liu Yu said confidently.