"Well, Hans, take this distinguished guest to a comfortable room, where he is going to stay for a month, until we leave for Mahaul in Mainz!" Han Xing nodded, since this Mr. Horseffin has a task (shēn), Han Xing doesn't want to embarrass him, it's just one more person to eat, but Han Xing, who is now promoted to duke, doesn't mind.

"Count Segaard, our brother and sister have come to bid you farewell!" After Mr. Horsestephen left, he heard Ernst tell him that the younger Duke of Hesse had arrived. But the bearded Heinrich walked up with his sister Egris, and said loudly.

"Alright! If you're going to Saxony, I'll send someone to escort you! By the way, I would like to give you a parting gift???" Han Xing still has a hint of apology and harmony (qíng) for the siblings, after all, their father, the Duke of Hesse, is kind to him. And if it weren't for Count Sāo, Han Xing would probably choose to support this Young Master Heinrich.

"That's it, this one is called a pistol, it's a new long-range weapon, it's easy to use, you'll be able to use it!" As he spoke, Han Xing took out a gorgeous flintlock pistol with a wooden handle and decorated with silver patterns, demonstrated it, and then stuffed it into Heinrich's hand.

"This~ I can't ask for it!" Heinrich hurriedly waved his hand and excused himself. But Han Xing repeatedly emphasized that "it was just a souvenir", and he reluctantly accepted it.

There are still a lot of such flashy pistols in the [seaside area], which were originally produced for dragoons, but they are far worse than revolvers, but the shape of the wooden handle is chic, and it looks elegant and beautiful. The reason why Han Xing wanted to give them pistols was to let them attract the attention of Sir Ditrick. In this way, they will have a slightly better life in the Saxon court!

After the departure of the younger Duke of Hesse siblings, Han Xing began to think about the development plan of Göttingen: the castle in the middle of the Lennes River was only about 200 meters long, and the whole was in the shape of a narrow diamond, with a maximum width of 50 meters and a few meters at the narrowest ends. Such castles were also the most common in the Middle Ages, as much as possible to reduce the area, save building materials, and were relatively easy to defend, but after all, the layout was a little smaller.

So Han Xing's plan was to expand Göttingen by building the eastern and western districts along the banks of the Lennes, which were close to the riverbank, semi-circular, and had independent and complete wall defenses. The two sides are connected by a bridge in the middle, and today's Göttingen Castle serves as the middle node of the bridge.

In short, it is a city similar to Osgillias (the former capital of Gondor, divided in half by the great river Anduin) in The Lord of the Rings, with the only difference being that the node connecting the east and west banks of Göttingen is the current castle. In this way, if war breaks out, Han Xing can give full play to his naval advantages and use naval artillery to blockade both sides of the strait, even if one side is lost, relying on the geographical advantage of Göttingen Castle and relying on the cover of naval firepower, he can also sit back and relax.

Of course, the planned castle also needs to be remodeled, and the new castle is built in the style of a high-court castle in the world of A Song of Ice and Fire, with a raised foundation to 15 meters above the ground. This means that standing on the first floor of the castle is equivalent to standing on a building more than ten meters high. Add a one-metre wall to create a hanging garden. While strengthening the defense capability, it is both beautiful and practical (xìng). When completed, Göttingen Castle will become the vantage point of the entire city of Göttingen, with an unobstructed view of the entire city and its surroundings.

However, the plan is beautiful, but it is not easy to implement, so Han Xing found his royal advisor, Louis XVI, and everyone in the [Seaside District] to consider the specific implementation of this plan.

"I have to say, I admire this plan of yours! It's a huge city that functions as both a castle and a town, but the engineering investment will be huge! As far as you can conceive, the city is even stronger than King's Landing and the Red Keep! Rhaegar looked at the virtual blueprint created by Han Xing with 3D modeling, and said with a smooth chin.

"If such a city were built, it would be beautiful! This must be the most prosperous and massive city I've ever seen in my life! Lyanna looked at the 3D modeling diagram with great interest.

"The real question is, is it necessary to build a façade? If firearms began to be popularized in this era, there would be no need to invest a lot of money in building city walls, after all, no matter how majestic the city walls are, they are no different from biscuits in front of artillery! Moreover, the city walls will greatly affect the development of the city, after all, as the population increases further, the area of the city will gradually expand, and the existence of the city wall becomes an obstacle! Louis XVI circled Han Xing's planned façade with his fingers.

"I think the walls are still necessary!" Han Xing thought for a while and said, the city wall and arrow tower can create a safe atmosphere for people to a large extent, as if a fence will make people feel a lot safer, mainly because of comfort. What's more, how can a magnificent city not have gorgeous and spectacular white walls? It's an important way to show off your wealth and status!

"The real trouble is not the city wall, our Royal Academy of Sciences has figured out how to make cement, you only need to find all the raw materials, you can prepare concrete, prepare abrasives or dig pits in the ground, you can make large solid concrete blocks, for the city wall!" Mr. Varang, who was in charge of the Royal Academy of Sciences, wore one-sided glasses, carried a book in his arms, and dressed as an old pedant, coughed lightly.

"Cement? So powerful? You already know how to make cement? Han Xing asked in surprise.

To be honest, he had no idea how cement was made, only that he couldn't touch it with his hands, otherwise his hands would slip. This is a profound lesson left by being naughty and playing with cement as sand for their own buildings?????? What are the specific reasons? He didn't know it! In the modern era of social division of labor and segmentation, most people don't actually know the specific formula of cement, which is quite normal (qíng).

"It's still theoretical???????? We probably know that limestone and clay are ground into powder after firing, and then mixed with water in a ratio of 3:1 (remember this ratio ~) to make better cement. If you can mix lime and volcanic ash, you can also make good cement, which is called "natural cement" and is said to have been used since ancient Rome! As soon as Monsieur Varão spoke of academic questions, he gushed with great interest, and swept away the nervousness he had just had.

In fact, on this basis, there are also dry and wet methods, and the dry method is what I just said: limestone and clay are fired and ground into powder. The wet method is a modified version of the dry method and is becoming more and more widely used today. In the wet process, raw meal (unprocessed limestone and clay) is mixed with water to make a powder, which is then fired and dried in a furnace. The advantage of this is that it will not produce a large amount of dust like the dry process, which will enter the respiratory tract and affect the health of the producer. But the disadvantage is that the amount of (rè) consumed is relatively large, after all, the water added in advance needs to evaporate, which requires an additional amount (rè)! ”

Mr. Varang said eloquently, except for Han Xing, the people present were all confused (bī), this guy, even if it was Han Xing, was also a second monk who was confused, and seemed to understand whether he understood or not.

"Well, I believe you! Hans, take Monsieur Varan down, what does he want, cooperate with him! Got it? "Han Xing really listens to two big heads, this kind of professional thing, let's leave it to the experts to do! So he hurriedly motioned for Hans to come and "invite" Monsieur Valentine, who was speaking vigorously.

"No, Lord Count Segaard, Your Majesty! I haven't finished talking yet, there is concrete, concrete is a semi-solid prepared by adding an appropriate amount of sand and stones to the cement~~~~ Cement is really an epoch-making building material, which can be called a miracle in the history of architecture~~~~~ "I have to say that Mr. Varang's dedication to academics is really admirable, and if he doesn't finish speaking, he just tears his throat and roars, and he has to finish roaring."

"Whew~ Fortunately, he was sent away! Otherwise, he will probably have to explain to me the identification of water hard (xìng) lime and clay! Han Xing wiped the sweat from his forehead. (Inserting a sentence here, water hard (xìng) lime is both lime with clay added, i.e., later cement.) Clay is the main material for making ceramics, which is easy to find~)

"Now that the problem of building materials has been solved, let's talk about the following!" Han Xing returned to the table and said to everyone.

"Hanschel, have you ever thought that the development of a city takes time? Rome wasn't built in one day! You've planned a large area, including a port, a shopping street, and a residential area. Such a plan is good, but if the entire building were to be built on its own, it would cost a lot of manpower and material resources. Therefore, I believe that we will not build any facilities other than the outer walls, castles, bridges, roads, and so on. Louis XVI proposed.

"We only need to plan a specific area and let the residents and businesses build it themselves! We can provide construction work at a low cost price, which not only saves cost input, but also enriches the architectural style of the city! Believe me, a thousand people's brains are definitely better than one's brain. There are also ports and urban areas, in fact, we don't need to build so much in the short term, first build a wharf, and start to build the eastern urban area, as for the western urban area, and wait until the population and trade come up, and then expand it! Louis XVI's suggestion is very pertinent, he suggested that Han Xing split a grand split into several small goals to complete, so that the initial investment is less, and after the merchants and residents settle in, they can start to make profits and return to capital, so that it is not easy to break the capital chain, and there will be no embarrassing situation where the city is built but no one settles in, like a ghost.

"You have a point, Louie! But I'm a little worried, if they build some ugly, ugly buildings in order to save costs, won't it affect the cityscape? Han Xing felt sick at the thought of stinky ditches, mosquito nests, and slums in the city, this was not in his plan!

"We can set up a building management agency! Approve buildings in the city. If the blueprint is not qualified, it will not be allowed to be built, not to mention, some buildings can be a little rudimentary in the early stage, but with the growth of time, subsequent remodeling and decoration can be carried out! Louis XVI thought for a moment.

"Isn't this the legendary Urban Development Planning Authority?" Han Xing suddenly thought of this famous institution in later generations.

"Then it's settled, we can start with the east bank of the Lena River, near the line between Braunschweig and Feldenburg!" Han Xing clapped his hand, and as he spoke, he came to the city wall, looking at the green field on the east bank of the Lena River, which was still empty (dàng) (dàng) at this time, but his heart had already sketched a prosperous scene of busy traffic.