The two professors laughed out loud after listening to Yuan Tiangang's words.

One of them smiled and said, "Lord Yuan, have you forgotten? Can I dilute this? ”

After hearing this, Yuan Tiangang was suddenly embarrassed.

As the dean and professor of the college, how could he not be exposed to and learn about professional knowledge such as concentration and dilution?

It's just that he was a little shocked just now, so he didn't think of it in time.

He said to the two of them embarrassedly: "I only thought about the power of this thing, and I forgot everything else for a while. ”

The two couldn't help but smile after hearing this.

The three of them then returned to the academy together.

The explosion just now startled everyone in the academy.

At this time, Yuan Tiangang had to explain it to everyone briefly.

The two professors who developed nitroglycerin returned to the lab to continue their experiments.

They also need to dilute nitroglycerin to a very low concentration and send it to medical school for experimentation.

A loud noise from the direction of the academy also shocked some of the residents who lived nearby.

Most of their children also study at the academy.

Therefore, many people came to the academy to inquire about the situation.

Yuan Tiangang had to come forward to explain for a long time, and hoped that these people could help him explain to the other residents.

After all, this is likely to happen many times in the future.

It's not good to make such a big movement every time.

When he was here to appease the people, Kong Yingda had already run to see Li Shimin.

After seeing the arithmetic knowledge taught in Li Zhi's academy, he felt that there was no need for the arithmetic course in Guozijian to continue.

So he proposed to Li Shimin that the students of arithmetic should be sent to Li Zhi's college to study.

Li Shimin hesitated after hearing his words.

Then he opened his mouth and said to Kong Yingda: "The Pheasant Slave's academy is set up by a private person, and it is not possible to directly obtain fame for the time being, so I am afraid that it is unacceptable to arrange those students in this way, right?" ”

Kong Yingda opened his mouth and said: "Your Majesty, even if the students of the Academy of Mathematics have obtained meritorious fame, they are only the official positions of the Nine Grades, and the impact should not be very great. ”

Li Shimin shook his head and said: "Things may not be so simple, you must know that although the official position of Jiupin is small, it is also a step forward, and it is better than getting nothing." ”

Kong Yingda pondered for a moment and said, "In this case, it is better to simply bring the academy of His Royal Highness King Jin into the jurisdiction of Guozijian, so that those students will also have a step forward?" ”

Li Shimin smiled bitterly: "Kong sacrificial wine is really not a family, I don't know that firewood and rice are expensive, there are nearly two thousand students in the Pheasant Slave's academy, how can the court arrange so many people?" ”

Li Shimin's words are not casual.

You must know that there are only a few thousand high-grade officials in the entire Tang Dynasty at the moment.

There are only about 600 officials under the jurisdiction of the central government.

More than 2,000 people suddenly appeared preparing to take the test for fame, and they were all studying arithmetic.

What percentage should so many people be admitted?

What positions can I arrange after admission?

Kong Yingda reacted after listening to Li Shimin's words.

So he could only explain awkwardly: "The minister just saw that His Royal Highness the King of Jin had better arithmetic in the academy, therefore..."

Li Shimin waved his hand and said: "It's not to blame Kong for sacrificing wine in this matter, it's just that the pheasant slave has already made arrangements for these students, so I don't need to interfere rashly." ”

Kong Yingda hesitated for a moment and said, "Weichen has a reluctant request, and I also ask Your Majesty for help." ”

Li Shimin said: "Aiqing, you can talk about it." ”

Kong Yingda opened his mouth and said, "I don't know if Your Majesty can temporarily borrow two professors from His Royal Highness King Jin to Guozijian to improve Guozijian's arithmetic ability." ”

Li Shimin frowned and said: "It's not that I refuse to follow you, it's really that the doctrine of the pheasant slave is too important to the Tang Dynasty." ”

Li Shimin said this, and looked at Kong Yingda seriously.

Then he solemnly continued: "There are too many students from other countries in the Guozijian, and the doctrine of the pheasant slave must not be easily taught. ”

Kong Yingda didn't know why.

Therefore, after listening to Li Shimin's words, he couldn't help but ask suspiciously: "It's just a set of doctrines, how can it be to the extent that it needs to be kept secret?" ”

Li Shimin said solemnly: "This matter is a long story, but I think Aiqing has already come into contact with glass, soap and other novelties. ”

Kong Yingda nodded suspiciously after hearing this, but he didn't know what the relationship between the two was.

Li Shimin continued: "These are the products of research based on the doctrine of the pheasant slave. ”

Kong Yingda finally understood something when she heard this.

It seems that the doctrine of His Royal Highness the King of Jin can bring a lot of wealth to the Tang Dynasty.

In this way, it is indeed not easy to be controlled by other countries, so as not to compete with the Tang Dynasty.

He thought he knew the whole truth, so he gave up his thoughts and left.

But I don't know that what Li Shimin revealed is only the tip of the iceberg.

At present, the smelting process of salt, sugar and various metals in the Tang Dynasty has developed rapidly because of Li Zhi's theory.

In addition, the superintendent has also manufactured many advanced machines, which can save a lot of manpower.

These are all things that enhance national strength, how can they be easily obtained by other countries?

Just when Li Shimin was thinking about this, he ignored that some of the tools designed by Li Zhi were being improved by some people and used for geographical surveys.

Since Li Tai was exempted from participating in politics, he became more interested in the geography books he presided over.

So he began to urge those in charge of the survey to speed up.

However, the tools in these hands are very rudimentary.

The scope that can be surveyed at any time is very narrow.

So every time these people returned to Chang'an City to deliver the newly surveyed map, they would always get together and complain.

These people also have their own connections, so they have some understanding of the new things that are emerging in the DPRK and China.

So they learned about new tools such as telescopes, levels, and compasses in the course of their conversations.

These tools are all of great help in their work.

Therefore, they asked Li Tai to come forward and ask the general to help make some.

Although Li Tai was reluctant to deal with Li Zhi's people, he had no choice but to pull down his face and ask Yan Lide for help for his political achievements.

Yan Lide didn't think about it that much.

After all, Li Zhi did not say anything about Li Tai in front of him, let alone allow them to offend others according to their own preferences.

So he helped those in charge of surveying to make some instruments such as compasses, levels, and theodolites.

Since some of these things used telescopes, Yan Lide also specially asked Li Tai to personally consult Li Shimin.

And repeatedly emphasized that you should not let others contact you at will.

You must know that the telescope is still a confidential item of Datang, and it is regarded as a magic weapon for victory by the generals of Datang.

In the previous war against Tuyuhun, it was with the help of telescopes that the generals could easily discover the residence of the Tuyuhun people.