Li Xuan was in front, talking with several military bigwigs while walking, and He Haoyuan, who was a few meters behind, could also hear their voices, but he never had a chance to step forward and interject.

In this case, unless the bigwigs in front of him asked him to say something, he would not have a chance to speak.

However, he is not the only one who is like him, and there are twenty or thirty middle and high-ranking generals and civil officials who follow him.

A group of people entered the weapons test site of the Royal Institute of Technology, and first went to watch the sample of the fuse, and at this time, as the project leader of the new fuze, Bi Zifei and several students of the Royal Institute of Technology were taken forward by the secretary of the Hanlin Academy.

At this time, everyone could clearly feel that Li Xuan's attitude was changing.

Along the way, Li Xuan talked with many people successively, but most of them were very calm, and although they talked to each other, they actually asked more questions, and the courtiers answered, and then Li Xuan made some instructions, and the courtiers nodded yes, saying that they would definitely strengthen a certain aspect of their work in the future, and they would not disappoint His Majesty or something like that.

But when talking to Bi Zifei and them, they could clearly see the smile on Li Xuan's face and his very kind attitude.

Even Bi Zifei said that there are still many difficulties in this fuze project, and it is estimated that the probability of success in the live-fire test is not great.

And the Son of Heaven also smiled, saying that scientific research, it doesn't matter if you fail, the important thing is to keep trying, don't lose confidence.

People who don't know may have a thought, it is estimated that the Son of Heaven is extremely angry in his heart, but in order to maintain the demeanor of the Son of Heaven, he deliberately said so.

But as an important minister of the empire, everyone present knew that the Son of Heaven said so, and at the same time, he really did it.

As long as you think about the scientific research funds that the Royal Institute of Technology spends millions of taels of silver every year, you can know that Li Xuan is really very tolerant of the scientific researchers in it.

Especially the medical department in it, the medical department in the Royal Institute of Technology, has been established a long time ago, and there are a lot of various research projects, but to be honest, so far, the medical department of the Royal Institute of Technology has not had any too successful projects, and in the eyes of many people, the medical department burns at least 100,000 taels of silver every year, and the result is that Mao has not studied it.

What's more, if the students at the Royal Institute of Technology are all demons or madmen, then the students in the medical department are all perverts, thinking about disemboweling every day when there is nothing to do, and even stealing corpses in order to study samples.

And sometimes he makes himself like a devil, and a few perverts even test themselves directly.

Such a person, if he had been placed on the European side, would have been burned to death by a fire long ago.

But in the Tang Dynasty, they were the talents most valued by the Son of Heaven, and the students of the Department of Medicine were treated one level higher than the students of other departments.

These are all full proof of the importance that the Son of Heaven attaches to science and technology!

Now, the Holy Son of Heaven Li Xuan and Bi Zifei and several other students of the Royal Institute of Technology are laughing and talking, as if they have come to chat with them instead of coming to see the test today.

This situation made many people envious when they saw it, not to mention a middle-level civilian officer like He Haoyuan, even a military boss like Lieutenant General Lei Wan was envious when he saw this scene.

He is not envious of the various political treatment and status of these students of the Royal Polytechnic, as the Minister on Duty in the Imperial Study, it can be said that he is already standing at the top of the political ecosystem of the Empire.

It is not an exaggeration to say that it is above 10,000 people under 10,000!

With the current political ecological structure of the Tang Dynasty, the Son of Heaven naturally has supreme authority, and under the Son of Heaven, there are seven ministers on duty in the imperial study, and these seven ministers on duty in the imperial study are equivalent to the ministers of the pre-Ming Dynasty, and even worthy of the name.

But even so, he Lei Wan couldn't laugh and talk with the Son of Heaven!

The relationship between him and the Son of Heaven is very clear, that is, the relationship between the monarch and the minister.

But these students at the Royal Institute of Technology have a teacher-student relationship with the Son of Heaven.

Because even now, seven years after Xuanping, Li Xuan still acts as a teacher from time to time to teach a small number of students in the Royal Institute of Technology, of course, the ability to listen to his lectures in person is basically limited to the senior and some junior students, and the number is only forty-five.

Bi Zifei is one of them!

These people are all real protégés of the Son of Heaven, and there is a world of difference between them and the Jinshi and doctors who were born through the imperial examination and are also called protégés of the Son of Heaven.

The only ones who can compare to them are the few students in the Imperial Academy.

But even if it was a small number of students in the Imperial Academy, it was impossible for them to talk and laugh with Li Xuan.

Others don't understand, but Li Xuan himself knows why he is like this.

Not for anything else, just because of the importance of it!

Li Xuan is not a saint, naturally it is impossible to treat everyone equally, for him, those military and political ministers, even if they are the ministers on duty in the imperial study, Shangshu, and lieutenant generals, to be honest, it is just like that, as long as he is willing, he can find a bunch of people to replace them at any time.

But these students at the Royal Institute of Technology are different, the students here are all geniuses, and there is no way to copy them in large quantities, and even everyone in them is irreplaceable.

Scientific research is a kind of thing, although hardware is very important, but people are even more important, because ordinary people think hard and meditate, and they can't think of a fart, but the genius of the family has a flash of inspiration, and they come up with a solution.

As the saying goes, people are more popular than people, and they belong to the type of angry people.

In addition to this, there is another important point, that is, although these students are all of high grades, have good treatment, and even have knighthoods, they are still not military and political personnel, they do not have much actual political power, Li Xuan does not have to worry about what they are doing to force the palace, rebel and the like.

For many reasons, Li Xuan maintained a kind attitude towards the talents in the Royal Institute of Technology.

And this kind attitude, other ordinary courtiers basically don't count on it.

Li Xuan and Bi Zifei laughed and talked, and at the same time, Bi Zifei and they also introduced the specific situation of the new grenade fuse to Li Xuan in detail.

Li Xuan had only seen some simple descriptions on the report before, but it was the first time he had seen the real thing.

What was now placed in front of Li Xuan was a cannonball and a fuse that had been split into several parts.

At this time, Bi Zifei stepped forward and explained: "In recent years, including our project team, many project teams have put forward many new fuze concepts, including collision fuzes, wooden fuzes, and paper fuzes.

After the initial tests of our project team, it was found that the uniformity of the wooden fuse was too poor, and it was difficult to ensure that the shell could explode at the exact time, which was very important for the experience of artillerymen, but even so, the wooden fuse was better than the sui firing fuse and the paper fuse.

The success rate of the former is too low to ensure detonation, while the latter, although the uniformity is relatively easy to use, is easy to get damp and difficult to store for a long time.

Therefore, in the later stage, the main research direction of our project team is wooden time-delay fuze! ”

"Our initial idea was to install a wooden time-delay fuse directly on the shell, cut the fuse of appropriate length to control the explosion time when firing, and let the high-temperature gas generated when the gun was fired directly ignite the fuse, but because the round shell is easy to roll over when launched, and it is extremely easy to explode in the shell, we later added a cork base to the shell!"

When he said this, Bi Zifei was a little excited: "After adding a cork base to the shell, we found that this can not only effectively control the rolling of the shell, always let the direction of the fuse be aimed at the gunpowder gas, but also found an additional benefit, that is, because of the effect of cork, the closure between the gun chamber and the shell is tighter, which can effectively improve the accuracy and even the range!" ”

"Later, we conducted many experiments according to this scheme, although there were successes and failures, but on the whole, this is a direction worth continuing to develop!"

Bi Zifei said while showing Li Xuan a complete cannonball, this cannonball is more accurately a cannonball that is about to be launched, well, except that there is no actual charge.

The shell is still the same round shell, but with a cork base, and the body of the round shell has a wooden fuse tube that is inserted directly into the projectile body.

This shell looks decent, but I don't know what it will behave during the live-fire test.

So soon, Li Xuan led a group of people to the stands, and then looked at the guards soldiers below, and prepared for the live fire test under the guidance of several technicians.

A short time later, a colonel of the Guards came over and said that it was ready, and asked His Majesty to order a test.

Li Xuan said: "Now that you're ready, let's start!" ”

As Li Xuan gave the final order, the three guns on the field also began to be loaded one after another.

After the loading was completed, I saw a major under the command waved his hand, and the first nine-pound field gun was ignited one after another The fire rope on the gun was ignited.

At the same time, the muzzle of the cannon also spewed out thick white smoke, but at this time, no one looked at the cannon itself, but at the small black dot flying in the sky.

At this moment, many people in the stands shifted their eyes along with the three shells, and they were about to see the results of the test firing with their own eyes!