Datang romantic little landlord

But Li Wangyou was going to let these people all huddle together and sit on the floor to listen to the class?

Ordinarily, Datang's habit is to sit on the ground, which is normal.

Even if the officials go to court, they sit on the floor in the Tai Chi Hall.

But the students of the academy all sat on those high-backed chairs, and it was a little out of place for the princes to sit on the ground.

If this matter is to be spread, the Royal Academy of the Tang Dynasty will really be "famous".

Xu Jingzong opened his mouth, he really wanted to persuade Li Wangyou to let the students of the academy sit on the ground and give up their seats to those famous scholars.

But he didn't dare to say that, otherwise he would definitely be spit out by Li Wangyou.

What's more, Prince Li Chengqian and the others are also students of the academy, so Xu Jingzong dared to let Li Chengqian and Li Tai also sit on the ground?

Anyway, Xu Jingzong has no way to solve this matter. Since Li Wangyou, the rightful lord, has spoken, Xu Jingzong doesn't bother to get entangled anymore, and just do what Li Wangyou said.

Anyway, the sky is falling and the ground is going to continue, and the princes probably won't be angry with him, the vice president of the academy, because of this.

As for Li Wangyou, he didn't bother to care about the identities of those people.

Regardless of whether he is a famous scholar or a high-ranking monk, if he wants to attend lectures anyway, he has to follow his rules.

After all, his class was for the teachers and students of the academy, so naturally there was no reason for the teachers and students to give up their seats.

According to Li Wangyou's instructions, Xu Jingzong went to arrange it himself.

It was almost time for Li Wangyou to wait, so Shi Shiran rode to the academy on horseback.But when Li Wangyou stepped into the auditorium of the academy, he was stunned by the scene in front of him...

960 What is temperature

Looking at the dark crowd in the auditorium of the Academy, Li Wangyou, the instigator, was a little unexpected.

He never expected that when more than 2000 people crowded into the auditorium of the academy, it would be like this... The degree of congestion was comparable to that of a train station during the Spring Festival travel season in later generations.

The originally spacious corridor was now filled with darkness, filled with crowds of people.

Xu Jingzong really carried out Li Wangyou's orders seriously.

Originally, Xu Jingzong was also worried that these famous scholars and eminent monks would be furious when they learned that the academy arranged for them to sit on the aisle floor, causing many troubles.

But what Xu Jingzong didn't expect was that none of the more than 1000 people objected. They all obeyed the arrangement of the academy and sat on the floor obediently without complaint.

In fact, Xu Jingzong was completely overwhelmed.

These people were even more worried about annoying Li Wangyou, and could not listen to the knowledge handed down by Taoist ancestors with their own ears.Therefore, for them, even sitting on the floor and listening to lectures is a pleasure.

On the other hand, the students of the academy were a little surprised to see so many strangers appearing suddenly.

Fortunately, the students of the academy have seen the world.

Especially those students in the second grade got along day and night with Prince Li Chengqian and others, and all of them developed a big heart.

A few days ago, during the hemisphere experiment in the academy, this group of students in the academy even saw His Majesty the Emperor with their own eyes.Even the outstanding student of the academy was cordially received by Li Er, the dean of the academy...

Therefore, the students did not show any timidity in the face of these famous scholars, eminent monks, and many officials who were famous in Chang'an.

But the students in the academy are still only six or seven-year-old Mongolian children. Even though the doctors and teaching assistants of the academy have been maintaining order, they will inevitably whisper to each other, making the auditorium of the academy extremely noisy.

When Li Wangyou appeared on the podium in the auditorium of the academy, the noisy auditorium suddenly fell silent. Everyone stood up respectfully and bowed to Li Wangyou.

Even those famous scholars with white hair and beards, high-ranking and eminent monks, like the teachers and students of the academy, all stood up respectfully, performed the disciple salute, and bowed to him, which made Li Wangyou feel a little uncomfortable .

These great Confucian scholars, like the elementary school students of later generations, sat back on the futon on the floor very solemnly, with paper and pens spread out in front of them, and they looked like they were listening carefully and ready to take notes at any time, which made Li Wangyou feel even more ashamed.

But to be honest, the feeling of being respected by others is actually... pretty cool!

Mensao Man calmed down, coughed lightly, and started today's lesson.

Squeezed into the auditorium of more than 2000 people, it suddenly became silent, and everyone was engrossed and listened carefully.

"Students, we learned about the composition of light in the last class. In this class, I am going to teach what temperature is?" Li Wangyou said while turning around and writing the word "temperature" on the blackboard behind him.

The reason why he planned to teach about temperature today was because a few days ago, he wanted to explain the plateau temperature to Li Er, but he couldn't speak.

Since ancient times, China has used the subjective descriptions of cold, cold, cool, warm, hot, and hot to describe temperature, which is really unscientific.

He wanted to get the thermometer out, but it was hard for a clever woman to cook without rice.

Without glass, it is difficult to carve and polish a thermometer by relying on crystal, so the thermometer is just a resentment in Li Wangyou's heart.

But he didn't expect that the artisans he hired to make colored glaze, which he spent a lot of money on, brought a great piece of good news a few days ago.

According to Li Wangyou's instructions, they used quartz sand, added soda and lime to it, and fired a transparent object that looked like crystal.

After the craftsmen presented their results, Li Wangyou and Su Changqing immediately expressed surprise.

Glass!

Li Wangyou dared to bet his head that the fist-sized, transparent irregular crystal in front of him, if it wasn't for glass, he would have slammed his head on the tofu to death immediately.

Su Changqing also looked excited, holding the unattractive piece of glass with many air bubbles in it and looking it up and down carefully.It's like holding a valuable diamond in her hand.

In fact, it is not wrong to regard it as a "diamond".

The value of glass that can be fired in Datang is even greater than that of a diamond mine!

After Zhang Qian emptied the Western Regions, a large number of glassware produced by the Roman Empire began to be introduced to the Central Plains, becoming a luxury that the nobles flocked to.

The value of the glassware introduced to the Central Plains through the Silk Road can be exchanged for the same weight of gold.

But in this era, neither the Persians nor the Roman Empire produced glass that was pure and transparent.

In Li Wangyou's house, there are also "imported" glassware sent as gifts by others.Judging from his and Su Changqing's critical eyes, these glasses are far from the glasses of later generations, at most between glass and colored glaze.

Glass was difficult to fire in ancient times, mainly because the melting point of sand was too high.

With a melting point of [-] degrees, with today's technology, it is extremely difficult to achieve such a temperature.

But Li Wangyou knew that adding soda to the sand could lower its melting point to more than 800 degrees, but the glass produced in this way is a one-time product and will dissolve in water.

Therefore, it is necessary to add lime to it, so that the glass fired in this way can be used.

This knowledge was dug out from various knowledge fragments in memory after Li Wangyou and Su Changqing almost thought about breaking their heads, discussing and discussing with each other.

Now the craftsmen really used this method to burn transparent and colorless glass, which naturally made the two overjoyed.

As for glass blowing, in fact, the craftsmen who made glass in the Tang Dynasty knew it well, so there was no need for Li Wangyou to show off his shallow common sense.