Release that Witch Chapter 305: Chemical breakthrough

witch and First Army set off have been around for four days. According to plan, they should arrive outside Silver Light City tomorrow afternoon.

After equipped with Honey flight messenger, Roland can receive letters from the team every day, including Iron Axe, Anna, and Nightingale. Although not as fast as mobile phones, it is basically wireless. The report is similar. If there are several times more flying messengers on this line, there are birds flying back and forth between the two places all the time, maybe they can simulate the effect of SMS chat.

When Nightingale was absent, Chief Knight took over the responsibility of defending the castle. But what puzzles Roland is that Carter for several days always looks cheerful and seems to have encountered something particularly happy. Is it worthwhile to return to my job and take charge of guarding myself?

He shook his head and focused his attention on the report of Minister of Construction Karl van Bate.

With the assistance of Sleeping Island witch, the Border Town's construction project has progressed rapidly in the past month.

First of all, the steel bridge on Scarlet Water River was successfully completed. Compared to traditional stone bridges and wooden bridges, the steel bridge can be pre-made and then hoisted as a whole, plus two floating islands raised by Lotus in the river. , Which further simplified its erection difficulty and shortened the construction period of the main bridge to an amazing one month.

Although in the eyes of future generations, it is short and narrow, the structure is too crude, the load is extremely low, and it is a tofu waste project that is a waste of materials. It is more than a few meters long, and the bridge deck is straight, allowing two carriages to pass side by side, and the lower part can also meet the passage of inland sailing boats, which is not a clumsy stone bridge.

Second, the new city wall of Lotus has also been closed. This pure earth piled city wall has more than tripled the area of ​​small town. If the city is built in the future, the original town will become a veritable "inner city". However, Roland is more inclined to say that one ring and two rings. Maybe one day, this place can also be expanded into a giant city with seven rings, officially crowning the name of the capital.

Finally, the construction of Kingdom Highway. Some of the foothills that have spread along Impassable Mountain Range have been reduced to level ground by Lotus, so that the road can pass straight and greatly reduce the total construction period.

"His Royal Highness, what is your next construction plan for Lotus?" Karl asked after reporting the progress.

It can be seen that he was envious of the ability to transform the terrain, but he had just asked in person to include her in Ministry of Construction and appoint a deputy minister.

"Hmm ..." Roland is also thinking about this issue, and next he has three major renovation projects to be implemented.

The first is the estuary project: in the southern end of the mountain ridge zone, find a low-profile gap, and then settle into a road that can enter and exit the shoal. This must be done by the ability of Lotus. Once the transformation is completed, Western Region has a harbor facing the sea.

The second is residential expansion: Although City Hall has invested a lot of human and financial resources to step up the construction of residential quarters, when the winter comes, there may still be nearly 3,000 people unable to live in warm brick houses. The wooden sheds and simple dwellings currently set up simply cannot meet the needs of cold protection, so he needs a batch of cave houses with thick walls and flames to solve this problem.

The last point is to set up a dock: if he wants to produce shallow water gunship, he must first set up a spacious dock, but it must not affect the passage of Scarlet Water River. Roland intends to lower the height of a river bank at the west of small town to form a dry dock, and install a lifting sluice gate on the side near Scarlet Water River to control water blocking and drainage. The earthwork scale of the project is huge, which also depends on the capacity of Lotus.

After thinking about it for a while, he finally decided to put the residential expansion first. Since eastern region refugees was brought to Border Town, he was responsible for their food, clothing and accommodation. If you freeze to starve, not only will Western Region's be lost, but citizen's sense of belonging to this place will also be reduced.

"Where is this temporary house built?" Karl asked next.

"Let's fall in the current serf shantytown," Roland glanced at the map and said, "Away from the wall defense line, there are Impassable Mountains and shelter."

After Minister of Construction retreated, he just wanted to take a nap on the chair, and Cam Schuire came to the door again.

"My Highness, I have successfully developed the large-scale acid production method you requested."

This sentence instantly dispelled Roland's tiredness. He stood up from the table in surprise and said, "Really? Take me to see."

A group of people came to the laboratory next to Scarlet Water River. I saw several off-white pots and an furnace set up next to No. 5 lab. Each pot was about two people tall, and the top was connected by pipes. The structure was smooth and smooth. Obviously it was cut out by Anna.

"Salute to you, Your Highness," a very young-looking guy bowed to Roland.

"You are James, right?" Although Cam had long known that Scarlet Water City had dug a group of alchemy apprentices, and also attracted an outstanding alchemist, but today he is the first time to see the other person.

"You remember my name," James was surprised.

"Mr. Cam mentioned you many times," Roland patted his shoulder as an encouragement, "Do it well." Then he looked at the chief alchemist, "How does this thing make acid?"

Cam smiled with a beard, "It can be successfully developed, and it is completely based on the reaction formula Derivation on «Elementary Chemistry». Look at the furnace. The purified sulfur will burn in the kiln, and the generated gas will be further heated. , Sent into a lead can. "

"These devices are made of lead?"

"Yes, only lead can resist acid corrosion." Cam nodded. "The lead tube at the top of the tank is continuously sprayed with nitric sulfuric acid. Under the hot sulfur dioxide gas, nitric acid is decomposed into nitrogen oxides by heating. Finally It reacts with water and sulfur dioxide to form a sulfuric acid solution, which flows out from the hole at the bottom. The ingenious reaction is that nitrogen oxides only play the role of transferring oxygen. It does not consume itself, so the amount of nitric acid is not large. Once the reaction starts, the energy source is constantly Go on! "

"What's its output?" Roland asked excitedly patting the lead can. Large-scale acid production is the prerequisite for mass production of smokeless gunpowder. If this problem can be solved, the new generation of ammunition with continuous firearms and cannon will have hope.

"This is the fourth device I tried, and the output of one day is about the equivalent of one week of dry distillation in the laboratory." Chief alchemist said proudly, "because of the experimental factors, so it The volume is not large. If a larger capacity lead can can be built, the output can be further increased. "

"This is really good news," Roland laughed, "when Miss Anna returns, you will immediately start building a larger-scale acid plant. In addition, if lead is not enough, you can use iron instead. The coating of Miss Soraya can eliminate iron Corrosion of acid. "

Cam nodded, but his next sentence stiffened the prince's smile.

"Now that the large-scale acid production method has yielded results, and all five laboratories have been filled with apprentices, Your Highness, can you give me the" Intermediate Chemistry "promise?" (To be continued. Support is my greatest motivation.)

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