I am a pirate in Ming Dynasty

I won’t go into detail about the culture of kang burning, as it is a legacy of history. The classroom is much larger than the room, so just burning the kang won't solve much of the problem.

This does not prevent Qin Shang from finding a way to warm the classroom - floor heating. The laying of floor heating in later generations was achieved through thermal media, the most common ones being water and electricity.

At this time, it is almost impossible to find good thermal conductive materials. The technology of this era has not yet reached that point.

However, the laying of floor heating can be completely replaced by a kang, but the method is slightly different.

The Qin family's house is not a royal house, so it cannot be paved with floor tiles and have a pure mud surface. If there is some water leakage in the house, someone will definitely slip and fall in the room.

Ming Palace actually has floor heating, but it was made by countless skilled craftsmen with a large number of bluestone floor tiles. It appeared in the Tianqi period, and was only used on a large scale in the Qing Dynasty.

Qin Shang wants to create a floor heating system that can be used normally. It requires not only time, but also technology. Overcoming the heat conduction path is a huge headache.

The indoor space is large, and if the floor heater is not tightly sealed, the smoke will spread along the gaps to the entire classroom, and the classroom will become a barbecue house.

But if you don't do this, the temperatures of the Little Ice Age could freeze you to death.

However, Qin Shang didn't want to directly intervene in this kind of thing. Faced with the dilemma, he thought of a small way and left everything to the students to solve.

The next day, Master Yue brought a manuscript into the classroom. His hands were red, and his face had traces of wind, white with red.

But his face still showed no signs of depression. He knocked on the ruler on the table and said: "Today, we will not test everyone's knowledge. Everyone has learned almost everything in those two books. Now I will give you a This lesson plan is an extracurricular homework for you. You can study it in the past few days, but the time limit is only seven days. Once the seven days are over, no matter whether you have completed it or not, everyone must continue to study the next course."

Many students cheered when they heard that they no longer had to go to class. Facing the serious master, they had suffered from the pain of studying for a while. The novelty and fun of learning were all things they wanted to get rid of as soon as possible.

When the little fat boy Gao Cai heard that he didn't need to go to class, he was more energetic than anyone else. Without the company of his friend Qin Shang these days, being in this classroom became the most difficult time for him.

As for the extracurricular homework that the master mentioned, he automatically ignored it. He had never done any homework during the one-on-one tutoring, so what extracurricular homework was he doing?

Liu Tiezhu felt a little strange and turned his head to give the other brothers a look that meant he would go crazy later.

But when he looked at Yue Heng, the guy had an expressionless face and kept looking at the podium.

Not many people paid attention to Yue Fuzi's manuscript. Finally, it was Yue Heng who took it over. He almost knew the words written on it. Compared with the classical Chinese texts his father taught him, the words were easier to understand.

The easy-to-understand words made it easy for people to understand what was being said. Halfway through, his smart eyes widened.

Physical heat conduction? Conduction of heat through combustion? Use hot water to pass through the tunnel to heat the floor to increase the indoor temperature?

Is this all about something called geothermal heat?

Yue Heng was completely conquered by the above text. He burned a house to heat the room like boiling water. This seemingly impossible thing was given a specific feasible route in the article.

What if it really comes true? Yue Heng's eyes became brighter and brighter, as if he was seeing the door to a new world.

Some curious students also came over and looked at the contents of the manuscript together.

"Is this an extracurricular assignment?" one student questioned. The astonished expression on his face completely covered the content of the manuscript.

This attracted more students, and everyone seemed to be watching the excitement, surrounding Yue Heng in the middle one layer at a time.

There were only a few people left alone, Gao Cai with a runny nose, the three Liu Tiezhu brothers who pretended not to care, and everyone else who was a little curious gathered around.

A sound of surprise came from the middle, echoing in the classroom.

"With this, doesn't it mean we don't have to suffer the cold?"

"Not only that, it has really come true. Our classroom will be as warm as spring, and we will no longer have to endure the pain of wind blowing our faces."

"What is this pipe? It can withstand high temperatures and conduct heat. I've never seen one before."

"Look at the rest. The bluestones are laid out and sealed with mud. The passages are used to inject heat and guide the whole house. Where can I find this bluestone? It's almost impossible to achieve, right?"

...

The completely different discussions spread throughout the room in an instant. Ma Dawei felt itchy in his heart. He turned to Liu Tiezhu and said, "How about we go and take a look? It sounds very interesting."

Liu Tiezhu withdrew his curious gaze and gave each of the two children a slap: "What's there to see? They're just boring things. Pack your things quickly. If you don't go out, today's time will be over."

Ma Dawei and Xu Qingfeng could only look away and followed Liu Tiezhu out angrily.