In fact, although Yang Wenli's idea is very beautiful, there are many fatal difficulties, whether it is floor heating or high-rise water supply, steel pipes, or plumbing equipment, collection of heating, and boilers, which are not available in ancient times.

He can't make a boiler for the time being, but he has to find a way to solve the plumbing equipment such as steel pipe water faucets, joints, and valves.

Even in the 21st century, there are still many countries that can't make seamless steel pipes, so it can be seen that it is not so easy to make seamless steel pipes. Because he has no welding skills.

Why did he dare to do that? It is because sometimes there is a lot of inertia in industrial research and development, and the steel pipes of later generations are basically rolled with steel plates, including those giant steel pipes that are two or three meters straight.

But Yang Wenli obviously does not have this condition, which forced him to think of other methods, and he really thought of it, his inspiration came from the popcorn machine, and the popcorn was hot extruded with a screw.

If the steel pipe is manufactured in the same way, it is a truly seamless steel pipe without the need for welding technology.

It should be explained that he took out the 36 pinyin letters and pinyin rules, and after giving a few lectures, he handed over the difficult teaching task of the kindergarten to the cultural instructors of the army.

Of course, these instructors are those traitor scholars, most of whom were taken to government departments by Li Huaixuan and others, and a small number of them are still doing clerical work within the army, and at the same time, they also serve as cultural instructors in the military officers' lecture halls, which are under the management of the logistics department.

Now he has nothing to do and can devote himself to the planning and construction of the capital.

Steel pipes are used for underfloor heating, and steel is needed for other basic industrial equipment, which requires iron ore, and everyone has the impression that Japan is a resource-poor country, but in fact, Hokkaido is a special exception.

In fact, volcanic eruptions tend to spew out a large number of minerals from the center of the earth, such as sulfur, pyrite, and many rare metal minerals.

There are several mines in Hokkaido, the most common of which is coal, followed by gold and silver mines, the Toshima silver mine, which is the money bag of the Matsumae domain, the lead-zinc mine of Toyoha, and the sulfur mine of Aki no Mai.

The amount of iron ore on Ezo Island is not much, often associated with other minerals, and the content of impurities is heavy, but these impurities are rare metals, and the amount is not much compared to modern times, with ancient primitive mining methods, it is enough.

For example, the Toyoha Mine is the upper reaches of the Shirai River, a tributary of the Toyohira River, which is only 43 kilometers away from Sapporo, and it can be said that it is close at hand.

However, the beneficiation is troublesome, the mining cost is high, and it is not cost-effective, Yang Wenli has a better and better source of iron ore, that is, Sakhalin, Sakhalin's iron ore reserves are 4.4 billion tons, and they are all high-quality ilmenite and magnetite, with an iron content of more than 58%, which is easy to select.

In Yang Wenli's plan, Sakhalin Island was also the territory of the Far Eastern Kingdom, so if he wanted to mine iron ore, he would naturally go to Sakhalin Island to mine.

It's just that Sakhalin Island has not yet been effectively ruled, and it is not possible to go for the time being, and Yang Wenli can't help but remember what the situation of the Black Armor Army led by Yang Rentian is now.

It was really said that Cao Cao Cao had arrived, only to hear the neat beating of the chest of the guards outside the tent and saluting, and then someone shouted "Salute!" ”。

In the next second, Yang Rentian led all the officers into his royal tent, and everyone bowed and saluted together: "The ministers knock to see Your Majesty, may Your Majesty live long live, long live!" ”

Yang Wenli was very surprised, he didn't care about shouting flat, so he asked with a surprised face: "Huh! How did you get back? Have you conquered the whole island? ”

Of course, this question was answered by the commander Yang Rentian, who bowed again and said, "Your Majesty, the minister has led a large army to conquer the Ainu tribe in the north, and the leader of the tribe, Akanamo, has surrendered on his own initiative and is waiting outside the tent, waiting for His Majesty's summons.

The minister led his troops back this time because there were too many prisoners, there were thousands of Ainu warriors, and the Tokachi Plain in the east of Ezo Island was as big as 50,000. ”

"Fifty thousand, isn't there tens of thousands of soldiers to fight? It turns out that there are so many Ainu people on Ezo Island! Yang Wenli was also taken aback by Yang Rentian's words, and he said with an incredulous look.

This is not to blame him, because according to the historical records of later Japan, Ezo Island has always been a vast and sparsely populated place, and the population census of later Japan showed that there were only 24,000 people in Japan.

He also believed it at the time, after all, the Ainu people are not engaged in farming, and their development must be slow, but when he arrived here, he knew that Ezo Island was a treasure given to the Ainu people by God, and the fish and seafood here are too rich, it can be said that they are everywhere, how can there be tens of thousands of people on such a large island? Now as soon as Yang Rentian said it, he fully understood that the Ainu people in the later years were slowly killed by the Japanese.

And now is the Edo period, the Japanese have not completely ruled Ezo Island, this is because Japan is often at war internally, and it is simply unable to launch a conquest against the outside world, with the Japanese combat strength, do not send hundreds of thousands of troops, do not want to occupy the whole island.

It is not surprising that the Ainu people of the Tokachi Plains occupy the entire eastern shore of Ezo Island, and there are 50,000 people. As long as Ezo Island is unified, the Black Armor Army can increase several times, and as long as it takes time and concentrates on training, the Black Armor Army will be able to dominate the world without fear of any enemy.

These thoughts are very long, but they are actually just momentary thoughts in Yang Wenli's mind, and he continued: "Hmm! It is safe and right, the Ainu who conquered the Shikachi Plain are very important to us, and this will make the size of our army explode, and you, the chief flag officer, can also be raised.

I have always disliked to be false, and it is up to you to create how many people are what kind of troops.

Now that you have returned, rest for two days and help to keep the prisoners in check, although these Ainu are high-quality soldiers, they do not understand the language, and they cannot start training immediately, and they must first teach them simple Chinese, which will take time.

There is no hurry to conquer the Tokachi Plains, you must think of a perfect strategy, my requirements are not high, as long as you conquer the islands of the sea within this year.

Militarily, because I have too many things involved, I can only set the overall strategic goal, and the specific campaign is completely up to you to master, and I can't help too much, after all, I have not been on the front line, so I will not be a blind man's guide. ”

Speaking of this, Yang Wenli found that there was nothing more to say, so he asked them, "Do you have anything else?" If not, let that akalamo in! ”

Several officers saw that Yang Wenli was about to give an order to expel the guest, so they hurriedly bowed and retired: "The ministers are fine, so let's retire first, goodbye!" ”

……

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