The Ninth Princess grew up in the palace and was bound by various rules for nearly twenty years. It was a rare opportunity to let herself go. She not only wore Qing Mulan's armor, but also watched the female soldiers' crossbow formation drill.
He even asked Qin'er to take action and test the power of the crossbow array.
The volleys of hand crossbows were too dense, and Qin'er couldn't get close to the crossbow array without using a shield.
But once the shield is used, the situation of the battle is immediately reversed.
With the help of a shield, Qin'er rushed into the phalanx of female soldiers without any pressure, and then relied on her superb skills to easily defeat the phalanx of female soldiers.
Normally, Qing Mulan rarely brings Amei to Maomao Mountain. The recruits lack the opportunity to fight with masters. Now that he has a free training partner, Zheng Fang will not let it go.
He immediately reorganized his formation and insisted on competing with Qin'er.
Later, Jin Feng was also attracted by the commotion here, and asked Zheng Fang to give each female soldier a kerosene bottle.
When Qin'er used the shield, she hid behind the shield and it was difficult to see what was going on in front of her. The female soldiers smashed burning kerosene bottles onto the shield.
Qin'er was immediately surrounded by a sea of fire. If Jin Feng hadn't already prepared sand to extinguish the fire, Qin'er would have been burned to death by the fire oil sticking to her body.
Even though he was not burned to death, the shield in his hand was burned to the point of being unable to hold on to the fire, and he ended up being shot to death by a crossbow.
"As soon as the master's tactics come out, all the advantages of a master are gone."
Qing Mulan sighed.
"The advantage of a master is not to participate in such large-scale multi-player battles, but to perform special tasks such as escorts, assassinations and beheadings."
Jin Feng said: "It's like a hatchet. Its purpose is to chop firewood. If you have to let it chop stones, no matter how sharp the hatchet is, it can't withstand it."
"Understood."
Qing Mulan suddenly realized.
The Ninth Princess also nodded slightly.
Immediately afterwards, the Ninth Princess watched the actual combat drills of male and female soldiers, as well as various tactical cooperation, and stayed at the drill field until it was completely dark before going back to the house to eat.
After dinner, Princess Ninth looked at the small city tower illuminated by torches in the night, and thought of cement again, so she asked Qing Mulan to find out what cement was.
Qing Mulan didn't know how to explain it, so she had to ask Amei to find cement to demonstrate to the Ninth Princess.
Fortunately, when building the small tower, there were still a few bags of cement left. Amei hired a mason to make a mold for a sink out of wooden boards, and then poured cement mixed with gravel and gravel into it.
In order to speed up the solidification of cement, the masons built a bonfire next to the mold.
Early the next morning, the first thing the Ninth Princess did when she got up was to run over and check.
Yesterday's mud-like cement sand had solidified overnight and took shape. The masons removed the mold to reveal the sink inside.
The Ninth Princess asked someone to find a long knife and slashed at the sink with all her strength.
As a result, the sink only had a small cut, and the main body was still intact.
"Really as solid as stone!"
Princess Ninth handed the hatchet to Qin'er.
"I told you yesterday, but you still didn't believe me."
Qing Mulan yawned and said: "Actually, the time for the cement to solidify is still short now. If it is left for another two days, it will be stronger."
"Sister, do you know how this thing is made? Is it expensive?" asked the Ninth Princess.
"I only know that the cement seems to be made from iron ore powder and some random stones. As for the specific cost, I have to ask my husband."
Qing Mulan said: "But I guess it's not very high. I heard some time ago that your husband is planning to use it to pave roads. I don't know if it has already been paved."
Whenever it rains in the village, the roads become muddy, and Dakang doesn't have rubber shoes, so he is covered in mud every time he goes out, which makes Jin Feng very unhappy.
So after making cement, Jin Feng's first goal was to build defense facilities, and his second goal was to pave cement roads for the entire village.
"Such a magical thing, used to pave the road?!"
The Ninth Princess frowned slightly, looking like Jin Feng was squandering everything she had.
Dakang's industry was backward, so it was very difficult to build a city, especially city walls, which were extremely expensive.
If the cost of cement is not high, it would be most suitable for building city walls.
The Ninth Princess was about to go to Jin Feng to ask about the cement cost, when the door across the yard opened with a creak.
Conditions in Maomao Mountain are limited, and there are only a few good houses. Jin Feng gave the main house to Princess Ninth and moved into a side house himself.
I originally wanted to take a nap, but I was woken up by the sound of Ninth Princess and Qing Mulan talking.
"Your Highness, Mu Lan, morning!"
Jin Feng yawned, raised his hand casually, and greeted Ninth Princess and Qing Mulan.
Qin'er looked at Jin Feng's lack of editing and subconsciously wanted to scold him.
But remembering what the Ninth Princess told me last night, I had no choice but to endure it and turned my head to the side.
"Sir...good morning!"
The Ninth Princess thought it was Jinchuan's custom to wave and say goodbye, so she hesitated for a moment, then imitated Jin Feng's example and weakly raised her hand.
"What are you talking about so early in the morning?"
Jin Feng asked while brushing his teeth with a horsehair toothbrush dipped in some refined salt.
"I'm talking about the cement invented by my husband. Some powder is mixed with water, and then it becomes as hard as stone. It's really a magical thing!"
Princess Ninth asked: "Don't you know the cost of cement is high?"
"Why, Your Highness wants to buy cement?"
Jin Feng said: "Although the cost of cement is not high, it is not cheap either, and I have no plans to build a factory elsewhere. Transportation is also a big problem."
He was not afraid that Princess Ninth would buy cement, but he was afraid that Princess Ninth would ask for the method of making cement.
If the method of making salt is spread, then it will benefit the people all over the world. However, Jin Feng does not want to spread the method of making cement yet.
The Ninth Princess has been practicing in the court for many years. When she heard Jin Feng's words, she knew that he did not want to sell cement, let alone tell him how to make cement.
If she insists on it as a member of the royal family, Jin Feng may offer her the method of making it.
But in this way, it is equivalent to fishing in a dry lake. If Jin Feng invents something in the future, he will definitely not reveal it easily.
So far, Jin Feng has not only invented catapults, soap, cement and other things that were never available in Dakang before, he has also improved the heavy crossbow and forging methods, and developed a way to turn mineral salt into refined salt.
As well as the horse trap and Macedonian phalanx that can effectively restrain the cavalry...
In addition to soap, other inventions are very important to Dakang.
Without catapults or Macedonian phalanx, the northwest frontier of Dakang would have become a racecourse for the party members.
If he forced himself to ask for the cement formula, Jin Feng would definitely feel resentful and might not invent anything again in the future.
But cement is also very important to Dakang. If it gets into the hands of the royal family, solid fortresses can be quickly built.