Of course, Li Sheng wasn't anxious or anything, because... because he hadn't been shaken by Li Er at that time.
But then when Li Er shook his men, just when Li Sheng was about to rush to Chang'an, Wu Meiniang reported that there was a factory that really produced seamless steel pipes——
Li Sheng didn't know that Wu Meiniang felt that she had not met Li Sheng's expectations, so she secretly stuffed the dowry money from her mother's family into the factory, increased the "reward", and finally got it done.
However, Li Sheng was quite moved and excited after seeing the finished product - in actual history, when cannons were first invented and used, there were no seamless steel pipes at all... and they were not even steel pipes, but bronze.
Material.
The most famous star product is the "Urban" siege cannon used by the Ottomans to capture Constantinople and turn it into Istanbul. It was a bronze cannon.
The whole thing relies entirely on weight and thickness to increase chamber pressure and power. It can also be said to be quite an Ottoman-style idea... But since Li Sheng is here, of course he starts with seamless steel pipes.
Of course, the processing level at this period was not very good, so when he saw the first seamless steel pipe, Li Sheng simply knocked on it, listened to the sound, and then directly purchased a second batch. This time
The order directly increased the thickness of the steel pipe wall by three times.
It was originally a mobile phone, which was about seven or eight millimeters thick. Added together... you can imagine how thick it is.
But even so, for a large steel pipe with an inner diameter of twenty centimeters, the thickness is a little more than two centimeters...
This is still unimaginably thin!
However, in line with the principle of never forgetting his original intention, Li Sheng immediately ordered a third batch of tubes without stopping.
Although this time is not at the same time, it is not the same factory, but a copperware factory. Speaking of which, Li Sheng has not engaged in the copper smelting industry, but he has to admit that the people of China are not very motivated to make money.
Just kidding, as soon as I saw a hole in the market, I decisively filled it. There are several copperware factories of different sizes outside Hangzhou.
The processing of copper is much easier than standard steel. The diameter of this steel pipe is not as good as the second batch of steel pipes ordered before. The diameter is only 15 centimeters, but the thickness is five or six centimeters.
There is no way around it.
It wasn't that Li Sheng was frivolously spending the company's money, but because... his original intention was just to buy some labor protection supplies for going to Goguryeo to work.
For military supplies, everything must first be calculated based on the cost-efficiency ratio, that is, the ratio of energy efficiency to cost. The second factor is the ratio of energy to weight.
No matter how powerful a weapon is, if it cannot be transported to the front line, or if it is too difficult to transport, then... what is the use?
In this regard, the steel barrel is simply crushing the brass barrel.
The second batch of steel pipes fully met Li Sheng's requirements, and the same was true for the physical data tested... But.
Since it is a "labor protection product" for military use, of course stability is the top priority.
Therefore, Li Sheng stored these steel pipes, first made a batch of parts, assembled the brass barrels into the first batch of artillery, or... the first generation of artillery, and tested it once.
As for the steel pipe, I left the design drawing for Wu Meiniang to arrange further parts ordering, complete machine assembly, and testing.
Because the barrel is made of brass, its physical properties far exceed that of bronze, and its power is actually not low.
Anyway, it's just a military means to ensure safety...
Li Sheng has not forgotten in his mind that after all, artillery... is another kind of big firecracker.
No matter how awesome the energy/weight ratio is, once it rolls over, it's fun, and everything else is nonsense.
Li Sheng knew this very well, because... in another timeline, even Temujin, who was known for his fierceness and fearlessness and was nicknamed "The Prodigy", once said similar words.
Of course, Li Sheng didn't actually think about it that much. After all, there were a lot of famous generals and special girls coming out this time. Anyway, he just brought this thing to test and have a little fun.
Of course, Li Xiaogong and others did not know that Li Sheng brought something called artillery. They only knew that Li Sheng brought some private goods, which were relatively heavy. But what kind of private goods it was specifically, because...
Li Sheng is now an Internet celebrity official, and he is similar to the clan in terms of public influence. Therefore, after everyone saw Li Sheng's drinking capacity and recognized Li Sheng's warrior attributes, no one asked much about it.
At this time, Chang Le, the Supervisor of the Army, and Li Xiaogong, the Deputy Commander-in-Chief of the Army, both looked a little worried... One of the reasons is that Goguryeo today is different from the past. It is no longer an ordinary person, and is completely different from other nomadic tribes in Mobei.
The second thing is... everyone has to think about it before going on this expedition, and they still have to have a name.
Changle first asked Li Xiaogong and his uncle Changsun Wuji about this matter.
After hearing this, the two of them thought for a while and couldn't help but secretly lamented that although Princess Changle was a woman, she had insight, and they nodded in unison.
In name, they felt that there was no problem at first, because from a practical perspective, the battle that started over the laying of telephone lines a few years ago was over long ago.
But from a nominal perspective, the battle is not over yet.
The situation at that time was that Li Er paid more attention to the frontier. As soon as he found out that Li Sheng, a naughty kid, had invented a magic prop like a telephone, he immediately decided to arrange it for Hedong. After all, once the Turks were eliminated, even if the northwest became peaceful, the maximum
The scourge was relatively distant Rome, that was the long-term problem.
Goguryeo in the east is much closer to the Tang Dynasty, so we need to be extra careful. And... because of the laying of telephone lines, the soldiers stationed on Hedong Road also had the opportunity to reduce stress and burden, so during that time, Li
Er also simultaneously planned changes in defense arrangements and reduced the size of the imperial troops guarding the border.
And then... then, of course, the well-known conflict occurred. Of course, no one admitted that this conflict was their fault, but that didn't matter. What mattered was that the people on both sides of the border knew very well that this damn thing
It is absolutely true that the people of Goguryeo saw that the border defenses of the Tang Dynasty were empty, so they came down to thresh grass and valleys.
And although the battle was won, but!
Because no one admits that they were the ones who made the first move, and the conflict does not end with one of the two parties being completely eliminated, it is equivalent to the war not ending.
Therefore, at least on the surface, there is no need to waste brain cells on this expedition in vain. If you hit me, I will have to fuck you once. I don’t care if I beat you to death.
However... due to the sudden increase in Goguryeo's national power, this situation has undergone some new changes.