I am the cook, but I am Li Er's son-in-law

He is no stranger to this sentence.

A sentence in the Book of Rites, many scholars use it as their motto.

But Ji Wen felt that the real newness, he really came into contact with Yin Xuan's words today, yes. Guarding a saint and treating his words as the truth, is this new?
Ji Wen began to think.

sit at the door.

Like a woodcarving.

Yin Xuan tilted his head and looked at Ji Wen, a little confused about what the minds of scholars are pretending to be. He just said a few words of complaint to let him fall into this state?
He didn't bother Ji Wen.

Instead, he continued to teach a few girls and Li Tai.

In the following period of time, Kong Yingda came often, but stopped talking about what he said when he first came. After asking Yin Xuan, he would occasionally take Li Tai's geography class.

Yin Xuan has no objection.

After receiving Li Tai's money, whether Li Tai wants to listen to this class alone or with one more person depends on his opinion, as long as he thinks it is okay, then there is no problem.

Linlang Pavilion is still receiving resources from foreign merchants.

After waiting for so long, good news finally came.

Yin Xuan finally got the limestone he wanted the most. A group of merchants from Langqiongzhao had no choice but to get this kind of stone when they couldn't find other resources.

This is one of the least valuable stones in the illustration book. Two thousand catties of limestone can only be exchanged for one glazed cup.

It took them a lot of effort to transport the two thousand catties of stones from a land like Yunnan and Guizhou.

With limestone, and even iron ore and lead ore, everything is ready, and some interesting things can finally be produced.

this day.

After finishing class for Li Tai in the morning, seeing the guests coming, Yin Xuan pushed the paper out of his hand, turned to Li Tai and said, "There will be no class this afternoon."

"I'm going to take them to play some fun things."

fun stuff!
The eyes of the little girls lit up, especially Changsun Yi and Fang Yiyu. After they came, it was Li Lizhi who taught them knowledge, and occasionally they would ask Yin Xuan for something they couldn't understand.

And then after Li Tai came.

It's all about geography.

They have long expected to learn some new knowledge from Yin Xuan.

Li Tai's eyes also brightened: "Sir, can I take a look together?"

Yin Xuan shook his head, and declined politely: "No, you only paid for learning geography, and I only paid for teaching you geography."

"What's next has nothing to do with geography."

Li Tai glanced into the yard. This morning, he saw that people from Linlang Pavilion moved all kinds of ores into the backyard: "But sir, what you are going to do is related to minerals?"

Yin Xuan nodded and said with a smile: "You are smart."

"That's right, it's indeed related to those minerals, but... the next class involves chemistry and physics, but it has nothing to do with geography."

"Go home early and digest what I taught you."

Li Tai felt aggrieved, his chubby head lightly tapped, and the flesh on his cheeks twitched, but Yin Xuan was still not impressed by his cuteness.

Hairless creatures are not cute at all, only hairy creatures are cute.

Think about it this way.

Yin Xuan suddenly pricked up his ears, could he add some rare animals to the illustrated book, for example, the iron-eating beasts of Shu?
There is also the red panda. This seems to be the national animal of Zhe Mengxiong, and it should be part of Tubo now?It's not too far away, so people can catch one and come back.

The cutest little baby who will do the French salute when frightened.

Um.
This can be considered.

Li Tai rolled his own things, and was about to leave without eating in a fit of anger, but after thinking about the food made by the cooks in his house, he hesitated, stopped at the door, turned around, and looked for Zhang. New tables to sit down.

At least eat lunch and dinner before leaving.

Thinking about it, it is a good thing that there is no class in the afternoon, and I can slowly eat fried skewers in the afternoon, which won Li Tai's heart.

Li Tai patted his belly. After eating the food at Tongfu Restaurant, he also wondered about one thing, that is, how did the Shangshi Bureau make him so fat, and the food they made was not so good. tasty.

The wave of guests at noon has been received.

Yin Xuan led a few girls to the backyard, looking at the ore that filled half of the yard, Yin Xuan smiled.

Li Lizhi and Li Shu had a bad premonition.

This kind of smile has fooled them too many times, good-looking is good-looking, but they are already a little allergic to this kind of smile, and they get goosebumps just by seeing it.

"What I'm going to teach you next can be said to be gadgets that can change the world."

After speaking, Yin Xuan paused.

"In terms of value, that is, the technology of firing glass is comparable to it."

Li Lizhi and Li Shu tilted their heads.

They didn't think that burning glass was a high-value technology. Brother Zhengyang didn't do good things, and he and his uncle used this thing to deceive foreign merchants.

Fang Yiyu straightened his face and sat up straight.

The eldest grandson Mi has always been a god, she is the most well-behaved among the girls, although sometimes she always behaves strangely.

Yin Xuan moved over a piece of crushed limestone, clay, and iron ore, and then sat down on the limestone that was almost as high as his knees: "That thing is called cement."

"The refining method mainly focuses on two grindings and one burning."

"Take the limestone." Yin Xuan patted the stone under his buttocks.

"Clay." He patted the clay again.

"There are also iron powder and sand and stones that are ground into fine powder, and then mixed together, then put into the kiln for high-temperature firing-be careful during this step, so as not to cause dust explosion, the safety regulations I told you .”

"Then after the clinker is burned, gypsum, coal ash powder, and slag are added and ground together to form a fine powder, which becomes cement."

"This kind of thing, after adding an appropriate amount of water and sand and stirring, will become a natural adhesive that can connect sand and stone, and can harden quickly and efficiently whether it is on the ground or on cement."

They are no strangers to the words that came out of Yin Xuan's mouth, and they have learned a lot by ear.

Li Lizhi and Changsun Min didn't understand.

Fang Yiyu and Li Shu's eyes flashed a trace of surprise, even if they didn't see the real product, just listened to Yin Xuan's description, the effect of this thing is a bit too scary.

Then, they looked at Yin Xuan expectantly, waiting for Yin Xuan to come up with a finished product.

Li Lizhi and Changsun Ying were educated and kind, and they looked over with the same expectation.