Accidentally dressed as an empress

At one o'clock in the evening, the two of them got up.

After dinner, Yun Xiu pulled Zhong Yi back to Zhong Xiuyuan's study and forced him to lie on the couch.

Yunxiu also sat sideways, and Zhong Yi rested his head on her legs and hugged Yunxiu's waist.

Yunxiu asked him, "What are your theories about the assassins today?"

"It's hard to tell from the weapons and clothing alone."

Yunxiu said, "I think the most suspicious country is Yan."

Zhong Yi thought for a while and said, "I can't rule out this possibility."

He has been involved in the game between countries. How can she protect him?

Yunxiu looked at his jade-like face as white as snow and lips painted red, and couldn't help but stroke his hair lovingly. "You need to recuperate. I'll send someone to the weapons department to ask for a day off for you. You won't go anywhere these days."

Zhong Yi replied, "Yes, I will listen to your Highness. I also want to practice martial arts."

"The backyard is still empty, I'll turn it into a training ground for you."

Zhong Yi heard this and said in a muffled voice, "Your Highness is so kind to me."

She smiled and said that she was a Yunxiu brand wishing machine, which would grant any wish.

Yunxiu took out the bamboo book, "The smelting technique you want."

Zhong Yi stood up, not caring about the wound, and hugged her tightly, "Your Highness, did you get it so quickly?"

It would take at least two days for the carrier pigeon to go back and forth, and it seemed that she was about to be exposed.

Yunxiu's brain raced as she explained, "I didn't go looking for Ren Li. I found him while sorting through ancient books."

Zhong Yi also knew that she was different from others and said, "Your Highness is indeed a goddess, in charge of all knowledge in the world."

Yunxiu couldn't help but raise her eyebrows. Why did he still believe that? "I'm not..."

Zhong Yi quickly said, "I understand, Your Highness. I will keep it absolutely confidential and not say a single word."

What did he understand?

What Yunxiu didn't know was that he had heard her entire conversation with Ren Li.

Zhong Yi stepped out of her arms, took the bamboo book, stood up from the couch, walked to the twig lamp, and read it carefully. He had to study it carefully.

Zhong Yi went to work, leaving Yunxiu with an empty chest. She stood up, picked up the pottery jar on the couch, and walked out the door, instructing Su Da to take the medicine to the seriously injured guard. The medicine produced by the system must be better than the medicine in this world.

Su Da said that the guard who blocked Zhong Yi's knife was called Su Shiyi. In recognition of his meritorious service in saving people, he was promoted to Zhong Yi's personal guard after his injury healed.

When Yunxiu returned to the study, she saw Zhong Yi holding a picture in the candlelight and asking her, "Your Highness, is this what the blacksmith shop in Heng State looks like?"

The technology he was given was too advanced, which aroused his suspicion. Tiangong Kaiwu was a book written in the Ming Dynasty, nearly two thousand years ago.

The system allows her to summarize the experience of future generations based on the current world in advance and accelerate the progress of civilization.

She brought out the achievements of future generations in advance to improve the current technology, allowing them to skip the long process of trial and error and summarizing experience.

If possible, she also plans to apply some modern technologies.

She tried, but she couldn't produce anything that didn't exist in her world, nor could she take out supernatural props from other dimensions. If Yunxiu exchanged for a dream-weaving bottle and took it out, she would be struck by lightning.

If she took out a telescope now, she would still be struck by lightning. But she could improve her craftsmanship, such as improving the glassmaking process.

Liuli (colored glaze) is a rare, though not uncommon, material discovered accidentally by artisans while firing lead powder in a ceramic cauldron. Its production is low, and it possesses a jade-like luster. Like jade, it was used as a ritual vessel.

At this time, no one thought of using glass as a magnifying glass.

However, if colored glaze is to become transparent glass that can be used as lenses and reach a certain purity, the improvement process is very complicated.

At present, pottery is very common, and white pottery, a transitional product between pottery and porcelain, already exists. She can also improve the process so that they can fire porcelain as soon as possible.

Now that iron has appeared, she can improve existing smelting technology.

Seeing Yunxiu in a daze again, Zhong Yi patted Yunxiu on the shoulder and said, "Your Highness, Your Highness?"

Zhong Yi asked, "What is this big wheel?"

"This is a waterwheel."

Yunxiu quickly asked the system to transmit the section on The Exploitation of the Works of Nature to her so that she could explain it to Zhong Yi.

"The purpose of the waterwheel is to blow air."

"First, when burning iron ore and charcoal in a kiln, a higher combustion temperature is required, which requires faster ventilation. Water wheels can be used instead of manual air blowing."

"The second way to increase combustion temperature is to change the shape of the kiln. The taller the kiln, the better its heat collection capacity. The better the kiln's sealing, the less heat will be lost. A kiln made of earth doesn't seal well, so you can use pebbles, clay, or mineral powder instead."

Zhong Yi quickly picked up the brush and wrote it down on the bamboo slips.

"A third way to increase the combustion temperature is to crush the charcoal and iron ore into small pieces. Small pieces burn more completely than large pieces."

Of course, you can also replace charcoal with coking coal and add limestone, which will produce more carbon monoxide and reduce iron ore more efficiently.

However, in today's era of slash-and-burn agriculture, it is still a question whether people have started to use coal. People still mostly use charcoal.

Zhong Yi looked at her intently, his eyes full of curiosity, and asked, "How do you make the waterwheel that Your Highness mentioned? Use running water to make the wheel turn continuously like a wheel?"

Yunxiu smiled and said, "That's right." He is a really teachable kid, he understands things immediately.

To do one's work well, one must first sharpen one's tools. In modern times, improvements to smelting processes have also been made through continuous refinement of the combustion environment. For example, blast furnace steelmaking uses steel plates as the shell and refractory bricks as the lining. The combustion medium is coking coal, iron ore, and limestone. Air is continuously introduced into the furnace, and carbon monoxide is used to reduce ferric oxide.

Zhong Yi nodded, "Your Highness, I understand."

Yunxiu continued, "The iron blocks fired in the kiln still have a lot of impurities in them. Improved craftsmanship is also reflected in forging out impurities. Iron is forged into steel a hundred times, and the pig iron blocks are forged dozens or even hundreds of times to remove more carbon impurities."

Zhong Yi saw in the blacksmith shop that the blacksmiths did the same thing, but they didn't summarize it like His Highness did.

Zhong Yi looked at Yun Xiu with admiration, "Your Highness, take a look, how can this crossbow be improved?"

Yunxiu took the two pieces of silk cloth, one of which had a picture of a winch crossbow.

The winch crossbow looks like a giant bow placed on a wooden cart. The bowstring is tightened by pulling a winch rope, and when firing, the rope is simply cut.

The other picture was of the crossbow's key part, the crossbow mechanism. It was quite delicate, like a trigger, but she couldn't understand it either.

But she guessed that this was the secret of the crossbow's ability to fire continuously. The bow could only fire a single shot, but the crossbow could fire continuously.

Yunxiu felt bad. Was she going to learn everything and teach him? She was really shooting herself in the foot.