Several people arrived at Jiangzuofu together, and Taiyue also arrived in a short time.

On an open field in the backyard of the Shozuo Mansion, several blast furnaces stand majestically, and the blast furnace for burning glass is in the westernmost part.

Several people stood under the eaves and watched from a distance, and the public had already run over, directing the various processes to be carried out in an orderly manner.

The gang first poured pure sand that had been sifted out and washed with water many times into the crucible. The crucible had been improved, and they used to use a bronze crucible, which was obviously not good for ironmaking, so I arranged for someone to find a crucible made of ceramic made of kaolin. So strictly speaking, the crucible was the first piece of porcelain to appear in Daqin......

Watching the craftsman pour the sand into the crucible, Feng Zai said curiously: "Your Majesty said that this glass is made by burning sand, but this thing called the crucible that has been improved by Your Majesty is made of soil. Sand is stone, why burn sand with a crucible, and the crucible made of clay does not melt first? ”

I laughed and said, "Then you are underestimating the crucible, even if the kiln is blown up, the crucible will not crack." Like people, although the soil is soft, it can become a great thing when it is tempered by a thousand times. ”

Just kidding, the melting point of ceramics can reach 3,000 degrees, and the melting point of sand is only 1,700 degrees.

Li Si hurriedly complimented: "Your Majesty is wise! ”

Feng Zai pursed his lips, saw the craftsman pouring a pile of white powdery things into the crucible, and asked, "Your Majesty, is this also the material used to make glass?" ”

When I was idle, I was happy to answer him: "Strictly speaking, you only need sand to make glass. However, our kiln can only burn about 1,700 degrees, and it stands to reason that directly sending a crucible filled with sand to the kiln for burning can also melt the sand. But that is too dangerous, 1,700 degrees is only the highest temperature that the kiln can withstand, and if it continues to be at such a high temperature, it is estimated that the kiln will explode directly. ”

"So it's similar to the principle of ironmaking, adding those powdery things to lower the melting point of the sand, which used to take 1,700 degrees to melt, now it may only take 1,000 degrees. That thing is the alkali left over from plant ash dissolved in water and then filtered and boiled dry, which can be called potassium carbonate. If Daqin has alkali ore, it is more convenient to mine sodium carbonate directly from alkali ore. However, Daqin does not seem to have alkali ore. ”

Feng Zheng nodded and sighed: "Your Majesty's knowledge is really like the vast stars, and it often makes the ministers ashamed of themselves!" ”

I smiled, I originally wanted to say that he didn't divide the grains, after all, the ancients had long discovered that plant ash could neutralize acid, and after thinking about it, forget it, people don't cook, isn't it......

"I may not be as good as you in governing the country, but when it comes to developing productive forces, you are really inferior to me." I sighed slightly: "It's a pity that a lot of my knowledge doesn't have time to be written, so when the world settles down and solves the troubles of the south and the north, let's think about these again." ”

The knowledge in my head is comparable to a database, and it is unrealistic to write it all down, so I can only tell them little by little when I encounter something.

This time it was Li Si who spoke: "Your Majesty is too modest. But what does this productivity mean? ”

I turned around and walked to the front hall: "Let's go, let's go to the front hall, the public loss will not end in this time and a half, I will teach you a lesson today." ”

A few people sat down in the hall, and I was just about to speak, but I saw a small official leading Tao Yao into from outside.

When Tao Yao saw me, she immediately stepped forward and bowed: "See Your Majesty!" ”

I was curious: "Taoyao? How did you get here? Excuse me. ”

Tao Yao got up, and an ethereal voice like a stream sounded: "Back to Your Majesty, the concubine came today to ask Lord Liangzao for documents to buy porcelain from Peng Ze's official kiln mansion. ”

"Oh." I nodded: "Gong Yi has something to do in the back, you sit down first, and I have to wait for him to finish." ”

Tao Yao carefully glanced at the hall and couldn't help but feel a little apprehensive. Aren't the two on the left the prime minister of the current dynasty? On the right is Bai Chong, who will be Shaofu, and the other one has never been seen. With her identity, she can naturally recognize Li Si and Feng Zheng, not to mention Bai Chong, her head of the administrative department.

"Your Majesty, do you want to be a concubine or come back tomorrow?"

I waved my hand and said with a smile, "It's okay, I just want to talk to them, and it's beneficial for you to listen to them together." ”

Tao Yao bowed at this time, thanked him and sat down at the end.

Li Si had seen Tao Yao, and he wondered in his heart: 'How can Your Majesty be so familiar with this daughter of Ba Widow Qing?' It seems that it is not just the way to know each other during the trade with the Western Regions......

Feng Zai was even more curious, laughed evilly in his heart, and said secretly: "Taoyao? I've never heard of it. Looking at His Majesty's attitude towards her, could it be His Majesty's favor? It's good-looking, but you have to be twenty-one or twelve, right? Your Majesty is only eighteen years old, so in that case, he is a bit old......

After Tao Yao sat down, I glanced at it, Li Si and the three of them didn't have any expressions, but Feng Zai's face was already a little obscene......

I'm speechless, sometimes I really want to find a doctor to show Feng Zai, is this guy schizophrenic? It's resourceful and satisfying, but once it has nothing to do with politics, it's a bit funny.

I also heard that he often drinks with Meng Yi and Ying Ji, how can the prime minister take his subordinates to drink rotten wine every day. As long as you go to Wanlixiang's monthly wine sales day, you don't need to look at it, it is definitely the first person in his house to be in line......

"Ahem!" I cleared my throat and looked at Feng Zheng and said, "Feng Xiang, what kind of national affairs do you want, so distracted?" ”

Feng Zheng came back to his senses at this time, and hurriedly responded: "Back to Your Majesty, your ...... The minister is thinking about the glass......"

I laughed secretly, didn't dismantle him, and said, "Just now Li Xiang asked me what productivity is. ”

"To put it simply, productivity is the ability to transform nature formed by the combination of people with the ability to work and the means of production. In the vernacular, it is how much of the fruits of labor can be produced by people with the help of tools. For example, Li Xiang can plough a ridge of land a day with a hoe, and Feng Xiang can plough an acre of land a day with an ox plow, so Feng Xiang's productivity is higher than Li Xiang's. ”

By analogy, the combination of each person's ability to cultivate the land is the productivity of Daqin. Compared with before I improved my farming tools, Daqin's productivity is now higher than before; Compared with the tribal era, the productivity of the Shang and Zhou dynasties was higher than that of the tribal era. You understand that, right? ”

Li Si and the others nodded, it was still relatively easy to understand.

Li Si touched his goatee and replied while thinking: "According to what Your Majesty said, a minister can plow an acre of land a day with ten people with a hoe, but compared to Feng Xiang, who uses an ox plow to plow an acre of land a day, the minister's productivity is still inferior to Feng Xiang's." ”

Smart people are smart people no matter what era they are, and I give a thumbs up: "That's right!" So why increase productivity? What does Feng Xiang think? ”

Feng Zheng returned to his serious personality, and frowned slightly: "Chen also made an analogy, if one person's productivity can build the Great Wall, then the rest of the people can go to pioneer and cultivate the land, and Daqin will have more and more grain, and it will naturally be richer and stronger!" ”