That night, in the tent in the barracks in Schleswig, there were bursts of "strange sounds". Pen? Interesting? Pavilion wWw. ｂiquge。 infoThese anxious soldiers, after holding a group wedding during the day, at night, they impatiently hugged their newly married daughter-in-law, and in the extremely soundproof military tent, they started to do that......

For a time, the entire camp was full of "strange sounds". In the evening, Marin went to inspect the barracks, and naturally felt these voices rushing towards him......

Suddenly, Marin began to miss Angela and Felise as well......

The next day, Marin summoned Schwarz, Stader and other generals and began to discuss the stationing of troops. The Duchy of Schleswig was next to Denmark, and the Danes were not necessarily convinced. So, here, there must be a need for a large army to be stationed in case the Danes fight back. You know, the Danes also have more than 10,000 troops. Although the capital was breached, the more than 10,000 people in Sweden suffered little damage.

Therefore, in order to guard against the Danish attack, Marin decided to leave 10,000 troops and garrison them in the Duchy of Schleswig, mainly in the northern region and on the eastern coast, to guard against the Danish attack.

And Stadder, as the commander of this 10,000-strong army, will sit in the city of Schleswig to guard against the Danish counterattack. In order to allow Stadder to obtain timely information, Sauer specially left 100 excellent scouts to find out the military intelligence on the Danish side, so as to give Stadder and the remaining 10,000 troops enough time to react.

In fact, Marin's best commander was Woolf. Esbrand. However, Woolf. Esbrand was born in the wilderness, and although he had many ideas, he did not have a formal military command education. Therefore, Marlin intends to take Woolf. Esbrand brought back to East Friesland to train for a while. At the very least, let him learn the training methods of the East Frisian army and the application of the "Marin phalanx" before he can be entrusted with important tasks.

In order to ensure the safety of the soldiers, Marin decided to arrange a cement factory and a steel plant to produce a batch of cement and steel bars after returning to the Duchy of Schleswig, and build a number of reinforced concrete fortresses in the north of the Duchy of Schleswig to resist possible enemy attacks.

In addition, the steel plant will be responsible for the production of several cast-iron gates, which will be used to equip several cities in the Duchy of Schleswig. After all, after the end of the war, the method of Marin's artillery blasting through the oak gates, and then burying powder kegs deep to blow up the oak gates, has been spread. If you use an oak door, you will be waiting for the other party to break down easily.

Fortunately, the steel mills in East Friesland can also produce several tons of steel in a day, and a large iron gate can be built in two days. It's just that what makes Marin have a headache is how to prevent rust in the big iron gate......

You must know that the areas currently controlled by Marin are all coastal areas with a humid climate. In humid climates, iron doors are prone to rust.

This era is not a later generation, and waterproof paint is easy to buy. At the moment, there is no such thing as a professional waterproof paint. Some paint is applied to the large iron door, which can certainly be waterproof in a short time. But when soaked in rain, the paint tends to peel off. However, the large iron gate is still prone to rust......

At present, the most realistic technology is tin plating and galvanizing. Tin plating is made into tinplate. Tinplate can be rust and corrosion resistant, however, tinned iron doors can not be scratched. Once the tin layer is scratched, this opening is still easy to start to corrode.

Therefore, zinc plating is much more reliable than tin plating. The galvanized iron sheet is the legendary white iron sheet that is not afraid of wind and sun. In later generations, especially in the 90s, when the chengguan had not yet developed its power, there were many tin sheds made of white iron sheets on the streets, which were not afraid of wind and sun. It's just that after entering the 21st century, these iron sheds made of white iron sheets have been demolished by the "strongest in the universe" urban management as illegal construction......

Moreover, the galvanized white iron sheet is not afraid of scratches. As long as the scratch area is not too large, the white iron sheet is not easy to rust. Therefore, in later generations, the white iron sheet has a wide range of applications, and the price is not expensive.

However, as far as the world is concerned, there is no pure zinc in the world. Even in China, it was not until the reign of Emperor Jiajing that zinc-containing brass was used on a large scale to mint copper coins. The specific extraction of zinc ingots is about the appearance of the middle and late Ming Dynasty. Because at the end of the Ming Dynasty, Song Yingxing's "Tiangong Kaiwu" recorded the method of refining pure zinc.

The Europeans, on the other hand, have not been able to master the method of refining pure zinc. This is because when the temperature of zinc reaches more than 906 degrees, it is easy to volatilize as zinc vapor. In the ordinary metal smelting reduction furnace, the temperature can easily reach more than 1,000 degrees after adding carbon. As a result, Europeans have not been able to obtain pure zinc. It was not until 1746 that it was discovered and confirmed as a new metal by German chemists.

The secret lies in the addition of a condenser tube on top of the reduction furnace. After the zinc vapor volatilizes, it naturally transpires upward. If a curved condenser tube is added to the top of the furnace, there is water cooling outside the tube wall. In this way, the zinc vapor enters the condenser tube, easily cools down and adheres to the wall of the condenser tube. Then, scrape off the coarse zinc on the pipe wall and further refine it to obtain pure zinc.

Thinking of this, a message suddenly flashed in Marin's mind - the largest lead-zinc mine in Europe, which seems to be Ireland's Tara lead-zinc mine. The Tara lead-zinc mine is located beneath Mount Tara near Naveen City, more than 40 kilometres northwest of Dublin, and was only discovered in 1970.

The ore reserves of this mine reached 70 million tons, while the content was 10.1% zinc and 2.7% lead. In other words, the total content of zinc metal and lead metal content of the ore produced by the Tara mine has reached 7 million tons, and the lead metal content has also reached 1.89 million tons......

7 million tons of zinc, how much white iron sheet can be made......

Unfortunately, as far as Marin knows, Dublin and the surrounding area are currently directly under the British royal family. Marin wanted it, and he had to ask Henry VII if he agreed......

On a voluntary basis, Marin quickly selected 10,000 of the remaining 19,000 troops to remain and stationed them in the Duchy of Schleswig. Marin himself, with the remaining 9,000 men, with a large number of cattle and baggage, and more than 10,000 people in charge of logistics, returned to East Friesland by land.

Having acquired the nominal sovereignty of Dietmarshin, Marin discovered that the North Sea coast of the German region (excluding the Dutch region) was now under his control, with the exception of the coastal area of the Archbishopric of Bremen......

"Shall I find a way to get the Archbishopric of Bremen into my hands?" Marin thought about it, but gave up on the idea for the time being.

In his opinion, the acquisition of the Episcopal State of Münster was more important than the acquisition of the Archbishopric of Bremen. This is because the southernmost part of the Bishopric of Münster is located in the Ruhr region.

According to information gathered by Marin's men, the Ruhr region is currently mainly owned by three powers: the Marc Bourg, the Bishopric of Münster, and the Free Hanseatic City of Dortmund.

Most of the coal mines in the Ruhr region are located in the country of Marc and partly in the Bishopric of Münster. Even Essen, where Krupp Steel was headquartered, is now part of the Bishopric of Münster. Moreover, there is already a coal mining industry in the area. The Free City of Hanseatic in Dortmund, on the other hand, is so small that only a few coal mines can be mined outside the city.

As for the land on the westernmost edge of the Rhine, it belonged to the Duchy of Clifford. However, there are no coal mines there anymore, mainly arable land along the river. The area with coal mines is mainly concentrated in the northern part of the country of Marque, as well as in the southern part of the Bishopstate of Münster and the free city of Hanseatic in Dortmund.

Just put your father-in-law, Archbishop Rovere, on the papacy, and then help the Papal States conquer Florence. Then, Julius II, who ascended to the papacy at that time, could use his exploits against the Holy See as an excuse to give himself the Bishopric of Münster. Owning the Bishopric of Münster is equivalent to owning part of the coal mines of the Ruhr area, which is absolutely a huge deal......