After repulsed Tiffico's forces, the town regained its calm.

Roland selected three people from the City Hall Ministry of Education, and two teachers formed a team to take Soroya's copy of the books to the long song fortress.No matter how much effect he could have, he finally took the first step in the assimilation fortress.

Although Pero is not good at commanding combat, he is indeed excellent in administration, and in just one week, two thousand road repairmen have continued to come to the town under the escort of knights.If the second batch of ten furnaces had not been put into production, Roland had not yet made up his mind to build a hard road between the two places, and now he finally had a chance to squander it.

The road was named by Roland as the Royal Avenue, by the construction minister Karl full responsibility, its structure and the town streets are exactly the same, are cement stable gravel layer, in the era of no heavy cars, such a road has enough to undertake the transport task.Moreover, the drainage performance is good, and the asphalt or concrete can be added according to the situation.

In terms of construction materials, the four-seat steam engine-driven mill replaced manpower, carried out the crushing work of stone, and could produce tens of tons of gravel every day.The weak transportation capacity limits the further increase in production, so many stones need more than 100 people to move a day in a carriage to the site, if the future of the road overlord slag truck, only a car can be transported.

In addition to maintaining the clay brick firing in the kiln area, the rest of the blast furnace has been put into the production of cement powder, after many composition tests and iron powder supplied by the mine, the cement produced in the town is now far more than the original batch of products.

However, the transportation of gravel and cement powder by the brigade has also brought a lot of negative effects to the town, the most serious thing is the dust problem.In the afternoon, only a little scratching of the starting wind, you can see the dense dust flying, the street has also become light yellow.Although most townspeople don’t mind this, there’s nothing worse for Roland than having to close doors and windows on a hot summer’s day.

Therefore, the carriage carrying cement and gravel was quickly added with a cover plate to reduce the dispersion of the transportation process.At the same time, with the ability of the leaves to promote, the town was covered with shade in just a few days, and the leafy sycamore trees were symmetrically arranged along the street, looking green.Coupled with Roland's call for all to lead democracy, the problem has quickly improved.

The straight line between the two places is less than 70 kilometers, but considering that the road should be avoided from the foot of the mountains, the total length of the road is about 100 kilometers, and the construction period is expected to be one year.With high-quality roads, some means of transport can also come in handy, such as bicycles and steam cars.

In his conception, the development of education or the construction of roads, whether it is a measure to connect the two places together, just as the urban integration vigorously promoted by future generations.After the development of the land between the two places, the long song fortress and the border town will be merged into a huge city.If he could turn the hill at the southern end into a part of the city, and then open the fringe mountains, even out of the sea.

Of course, it takes more people to open up so much land, and in order to cope with a possible future war, the city must be self-sufficient in agriculture while also providing a large number of workers for industrial production.According to preliminary calculations, he needed to bring in about 100,000 people, and the largest city of the castle, the king, was only about 20,000 or 30,000.

Roland set his sights on the north and south of the Grey Fort, both of which have experienced war, and when the cold winter comes, it is likely that there will be a large number of refugees who are short of food and clothing.Simply provide food and warm shelter to absorb them into the border town.Even the refugees of Yongdong and Wolves were under his consideration.To this end, he also wrote a letter to the merchant Marguerite, asking her to help inquire about the situation in both countries.

...

After writing down the recent development plan, the prince put the paper in the drawer, stretched out a lazy waist, and decided to go to Anna's room to see how her lenses had cut.

Since learning about the evolutionary causes of Soroia, he has intended to make microscopes that can observe cell structure.

If you can observe the wonderful microcosm with your own eyes, it may lead to more witches evolving new abilities, and it will also stimulate their interest in learning.

For the production of microscopes, two convex lenses used to amplify the target are not difficult, the difficulty is that each focal length of each hand-studded lens is different, so matching the eyepieces and the objective lens is a fine work, and the distance between the two lenses needs to be adjusted repeatedly.

After he briefly described the convex lens imaging principle, he handed Anna several well-stacted crystals, allowing her to try cutting the lenses and measuring their focal length.It had been three days, and to what extent Anna had now done, Roland was curious.

Walking to the door of Anna's room, the Nightingale smiled at him, and stood with his back against the wall, as if to show that he would not follow up, and Roland no longer had to guess the other person's whereabouts, and when he was alone with Anna, the Nightingale would always choose to stand farther.

Pushing the door open, Anna was sitting at the table fiddling with a metal tube.

“How?”He asked before he came forward.

Just asking the exit, Roland froze, only to see a few instruments on the table that looked like a microscope, and they were very close to the diagram he drew.

"You made a few test products according to the drawings you gave me, and you can really see a lot of details that are usually difficult to find," she said, looking up, slender Liu Hai slid to one side, "I used it to observe the paper, leaves and water, and found that they look very different in peace days."Since experiencing a hot air balloon trip, Anna has stopped using honorable language when the two are alone, which makes it easy for him.

"How did you do it," Roland was surprised, "and that diagram is just a general outline."

"The outline is enough," laughed Anna, "you see, as long as the eyepieces and the objective are fixed at the right distance, they can be magnified, and then fixed them with an iron tube, and the main body of the microscope is complete."When I tested the lens amplification effect, I found that the objective and the observation target must be kept at a specific distance to see a clear image, and the hand shake will be blurred.As you can see from your schematic, you need a shelf to hold the mirror barrel, and the platform below the target can be moved up and down to get the best distance.”She paused, "This piece of the bottom of the diagram is more difficult to understand, can you tell what it is useful for?" 」

Roland glanced at the drawing and found that it was a mirror that was a mirror, used to increase the light through the target, and this era of mercury mirrors has not yet been invented, the general aristocracy still uses copper mirrors or iron mirrors to organize the appearance, the palace is on the back of the glass silver flakes, to obtain better reflection effect.Even without this mirror, as long as the sun is shining, the microscope can be used.

After explaining it in detail, he couldn't help but feel Anna's amazing understanding, and just based on a rough outline, he made a near-complete finished product, in exchange for himself, it was impossible to do so.

Looking at the other side's head down to detect the white neck of the new mirror, Roland couldn't help but come forward and wanted to kiss, but she pressed her hand on her face and gently pushed away, "Sooner, your Highness, I am busy."

“Well... all right.”(Not yet completed.If you like this work, you are welcome to start the project, your support is my biggest motivation.Mobile phone users please read.)