Li Kuan couldn't react to how many research institutes there are in Shishan Academy.

After all, it is not an exaggeration to build many research institutes in this scientific field that is in a mess.

"Your Majesty, the closest research institute to the Steam Engine Institute is the one that I was interested in just now. We are called the Aircraft Institute. They are not only studying the improvement of hot air balloons, but also studying some gliders, so that people can fly freely through the gliders."

Li Kuan was shocked when he first heard Guanshishan Academy apply to him to establish an aircraft research institute.

What's going on?

Could it be that other time travelers came out and wanted to get a plane?

Fortunately, after learning about it, I realized that I just wanted to improve the hot air balloon.

Since all the research institutes have been set up, Li Kuan explained the idea of ​​the glider.

To a certain extent, this thing is just a big kite, and the difficulty of making is relatively low.

However, it is actually quite a test of designing and creating a mature unpowered glider.

So far, this thing has not really appeared in the sight of ordinary people.

"Aircraft Institute? Are you really studying how to make people fly freely in the sky?"

Li Shimin looked at the yard in front of him with the "Aircraft Research Institute" hanging in front of him with curiousness, and it seemed quite empty.

"The news has been spread outside, so it's true. In the past year, the staff of the institute have tried to slide a few times in the suburbs and then made targeted improvements. However, this thing is greatly affected by the wind, and they are still trying to control it more flexibly in the air."

Before leaving and pushing open the gate of the institute, the person who received the news inside came out to greet him quickly.

When Li Shimin entered the yard, the first thing that caught his eye was two strange big umbrellas.

"Second brother, can you fly in the air with such a thing? Although it seems to be a little similar to the wings of an eagle, we can't flap our wings like birds in the air, right?"

Yizi took the lead and came to the glider, his face full of curiosity.

In fact, there are few people in this era who are not curious about soaring in the sky.

Although the hot air balloon has been out for many years, there are not many people who have actually boarded it and rode it.

"I don't know if you noticed it. When an eagle flies in the air, it does not flap its wings, but instead glides there in a fixed position. The things you see are called paragliding, as the name implies, which is used for gliding, so you don't need to flap, and there is no way to flap it."

Li Kuan still has enough patience to explain to Yizi.

Anyway, the problem of Yizi is not her personal problem, and others will definitely have similar questions.

"Second brother, the structure and layout of this paraglider should be very particular, right? Otherwise, it would not be able to fly in the sky or stay in the sky for a long time."

Li Zhi is a master of mathematics. Although he does not know any knowledge of aerodynamics, he can guess some of the working principles of paragliding at a glance.

"Yes, it's not particularly difficult to simply make a paraglider. But how to make a paraglider that meets our needs is even more difficult. How to add some power to the paraglider will be even more difficult."

Li Kuan couldn't help but look up at Li Zhi.

This little boy is no longer a child.

In history, he was definitely a few tricks to ascend the throne without any influence in the court and then successfully seized power.

"Your Majesty, if this paraglider is used on scouts and breaking into the local camp at a critical moment, it may have an unexpected effect."

Qin Qiong, who had never spoken, also expressed his own opinions very rarely.

Don’t look at Qin Qiong’s presence after entering the Zhenguan Dynasty.

But it does not mean that his military talent is not good.

On the contrary, in Chang'an City, Qin Qiong's ability is definitely second only to Li Jing, and he is one of the few powerful generals in the Tang Dynasty who are both civil and military.

"If hundreds of scouts were carrying turbulent bombs and using gliders to break into the enemy camp, it would have an unexpected effect."

Li Kuan looked at the glider in front of him again and felt that the speed of this thing must be much faster than that of a hot air balloon, so he gave his own conclusion.

When two armies fight, speed is a very important thing.

For example, hot air balloons have been born for a while, but they have never been able to truly become the standard equipment of the Tang Dynasty's army. They are just used as an auxiliary means and occasionally used.

This is because the speed of the hot air balloon is too slow. As long as the opponent discovers it in advance, although there is no way to avoid being bombed, the good bombing effect you want is very difficult.

After all, the effect of the sulphur bombs these days is still not as effective as that of later generations.

As for grenades made by the local method, the effect is even worse.

Unless you directly hit someone within three steps, it would be a delusion to take someone else's life.

In addition, the hot air balloon was too affected by the wind. During several exercises, it was blown directly by the strong wind and could not be found in the southeast, west and north, and something big happened.

Therefore, the construction of hot air balloon troops has always been very limited, and only necessary needs have been retained.

"The current unpowered gliders are not impossible to charge, but because a glider can only ride one person, and it is difficult for people to have the energy to throw fire bombs. It may be more suitable for sneaking into the enemy camp or to escape at critical moments."

Although Qin Qiong's proposal was very good, Li Kuan knew that the current gliders could not meet this requirement.

If you do this forcibly, you will not go to raid, but to die.

Li Kuanke was reluctant to let the person who could drive the glider die.

"The structure of this glider is actually not complicated at all. I didn't expect it to be able to bring people to the sky, which is really unexpected."

Li Shimin did not continue to get involved in the military use of gliders.

At this time, it is not suitable to say too much.

Otherwise, after it spreads, the glider's surprise attack effect may be reduced.

After seeing the first institute after coming out of the Steam Engine Research Institute, I unexpectedly discovered a glider, and Li Shimin became more interested in other institutes.

"Pesticide Research Institute? I don't seem to have heard of it before."

After leaving the glider research institute, Li Kuan took everyone to the nearby pesticide research institute.

Anyway, today I just took a quick look and saw a few more, so I can save people from doubting that Li Kuan was hiding.

"This was just established last year. The director is Yao Yuan, the winner of the first Tang Dynasty Royal Science and Technology Award. He found a unique path for the harvest of food in the Tang Dynasty by studying chemical fertilizers.

However, he found that many crops were damaged in harvests every year due to some pests, so he thought about whether he could find a way to develop a pesticide that was specially used to efficiently eliminate various pests."

Li Kuan also attaches great importance to Yao Yuan.

This guy is one of the rare innovative scientific research talents in the Tang Dynasty.

He has never mentioned this pesticide research institute before. It was completely figured out by Yao Yuan himself.

"Your Highness, according to your statement, isn't this pesticide research institute just a researcher on poison?"

Changsun Wuji once again showed his presence in front of everyone, as if he was reminding everyone at all times that he was the most trusted minister around Li Shimin.

"Changsun Wuji, do you have ears? People have said it very clearly. The Pesticide Research Institute studies drugs to eliminate pests to increase crop yields. But you have to confuse the public there, as if Guanshishan is using it to study some shameful things."

Cheng Yaojin found that Changsun Wuji was digging a hole for Li Kuan again, and immediately became unhappy.

What does it mean?

Today is when my old Cheng no longer exists?

You, Changsun Wuji, are awesome, but don’t think I don’t exist, okay?

"Isn't pesticides that kill all kinds of pests poison? Isn't it normal to poison insects if you add a little dose?"

Changsun Wuji felt that there was no loophole in his words this time, so he naturally would not let Cheng Yaojin fight him.

He is also a person who wants shame.

Many people in the court dare not fight with Cheng Yaojin because there are often no winners in the end.

But who is Changsun Wuji?

The Changsun Party claims to occupy half of the court. How could he be really afraid of Cheng Yaojin, a general of the Left Wu Guard?

"This knife for cutting vegetables and wood is done by ordinary people in the hands of cutting vegetables and wood, but in the hands of some people, it has become a weapon for killing and robbing people.

The same is true for this pesticide. If you use it well, it will naturally be a good assistant to help improve crop harvests. However, if you don’t have to do it right, it may become a tool to harm the people. For example, if you directly introduce a bottle of pesticide into the pond, the fish in the pond may die.

There is no difference between good and bad in this thing itself. The difference is only the people who use it. Changsun Sikong is so entangled with whether the things studied by the Pesticide Research Institute are poisons, which means that you are obsessed with it."

Under the influence of Xuanzang, some things from Buddhist scriptures were circulated in Chang'an City during this period.

Li Kuan's words "You are attached to the image", which immediately left Changsun Wuji speechless.

"The Pesticide Research Institute's starting point is very good, but the pesticides produced must be of high quality and low price, otherwise the people will not be able to afford them at all."

Seeing that Changsun Wuji and Li Kuan had already finished their battle, Li Shimin spoke.

It's like in the movie, when the battle is over, the police arrive "magnificently" with the arrival of the police.

"Your Majesty is sympathetic to the people and has a far-sighted vision. He discovered the key points of pesticide production at a glance. I really admire him very much. Today, the Pesticide Research Institute is considering how to target a highly efficient pesticide in rice blast development to solve the most important disease problems of rice.

Once this pesticide is successfully produced, the rice yield in Datang is expected to increase by half a century. This does not require the use of chemical fertilizers to increase the yield. "

In later generations, pesticides have become the standard item in crop production.

Whether during the seedling stage or during the flowering and fruiting stage, there are various pesticides that need to be sprayed.

Otherwise, the yield of crops will definitely be next level.

However, in the Tang Dynasty, no one has ever proposed the concept of pesticides.
To be continued...