Daming: Grandpa Emperor, please get up and sit on my throne!

"Sir, please go in the direction of the classroom over there. You went there once before when His Majesty was explaining to me and others." Zhang Yuqing stretched out his hand in the direction of the classroom and said.

"Thank you, Taoist priest." Qin Kui bowed and nodded slightly.

Then he went straight towards the classroom.

Behind him, he could hear Zhang Yuqing, Ma Rui, Liu Yuanran, and others discussing something he only half understood:

"His Majesty specifically sent for Lord Qin to deliver this message, clearly indicating his importance to this matter. To ensure greater efficiency, we will divide into three groups, each experimenting with one variable and recording the experimental process and results."

"Finally, how about putting them together and cross-comparing them to come up with the optimal solution?"

"Then I'll keep the other variables fixed and experiment with different amounts of coke added."

"Let's change the amount of oxygen we blow."

"Then I'll pick up the rest."

"..."

The group of people had enough tacit understanding that they made arrangements in a few words and then dispersed to conduct experiments.

Qin Kui kept thinking in his mind about the things that Zhang Yuqing and others were discussing casually... It was just his idle thoughts, so of course, no matter how hard he thought, it would be fruitless.

While thinking.

Qin Kui had also arrived at the door of the classroom.

There were about a hundred people sitting neatly inside, some were skinny scholars, some were big men with broad shoulders and strong muscles - they were either clerks, record keepers, or craftsmen in the Alchemy Bureau.

The household registration system of this era was strict, unlike the nine-year compulsory education in later generations, which was not only for popularizing science and literacy, but also for screening at every level.

Even among those hardworking craftsmen, there are naturally people with suitable qualifications and talents.

Currently, this first batch of students are all internal staff of the Alchemy Department.

One reason is to continue to maintain the mystery of the Alchemy Department.

Secondly, recruiting personnel from outside would easily lead to controversy. After all, if Zhu Yunhuan escorted a few more batches of death row prisoners in, people outside would say that they were evil cultivators who used their lives to fill the alchemy furnace...

At this moment, everyone's face was a little confused.

At the same time, they also felt very curious and looked around, especially those burly craftsmen, who were a little at a loss. This was a place they had never been qualified to come to before.

Of course, the most attractive thing here is the podium.

There are all kinds of strange-shaped bottles and jars on it. Well, they are all made of colored glass. Although to Zhu Yunhuan they are just a bunch of glass that does not need to be cared about, in the eyes of others, this is called inhumanity.

At this time.

A young Taoist who looked to be in his twenties slowly walked out from the back hall and stood behind the podium at the front.

Qin Kui took a closer look.

He recognized him immediately: he was Liu Ziqian, a Taoist priest from the same Zhengyi sect as Zhang Yuqing, to whom he had received some instruction before, and Zhang Yuqing's nephew.

After a long period of polishing, Liu Ziqian no longer has the initial unwillingness and arrogance on his face.

"Master Liu!" Everyone immediately stood in awe. In this alchemy department, they, the Taoists, held the highest authority.

Liu Ziqian smiled faintly and bowed slightly in the direction of Yingtian Prefecture.

He mimicked Zhu Yunhuan's tone and said, "Your Majesty once said that in this classroom, no one should be too particular about status and etiquette. No need to stand up, just sit down."

"This..." Everyone hesitated.

"This is the golden word of His Majesty, don't disobey it." Liu Ziqian advised, and suddenly he seemed to see himself sitting under the podium. At that time, whether it was himself, his uncle, or other Taoist seniors, they were all terrified and in disbelief.

"Yes." When he mentioned Zhu Yunhuan, everyone could only respond with an embarrassed look.

Seeing that Liu Ziqian had a kind expression on his face, everyone relaxed a little. Someone boldly asked, "Excuse me, Taoist Priest Liu, I'm a laborer forging swords and knives... I'm of humble status. I don't know why I was brought here."