Liu Ponu's so-called class is actually to go around his small village.

There are now hundreds of 'scientific researchers' gathered there, all of whom Liu Ponu has selected from various workshops in the most simple way.

Although they didn't make anything eye-catching, they didn't make any major changes to existing things.

But as far as Liu Ponu's selection conditions are concerned, even if this group of people is placed in the next generation, they are definitely the most top-notch wave.

Although Liu Ponu also looks at the accuracy of the selection, he still values his thinking ability more, for example, he ignites the gunpowder without using the fire source, you can ignite it is naturally the best, and he also looks at how many methods you can remember to use to test, the more methods used, it proves that the wider the knowledge and the more open thinking.

In order to speed up scientific research, Liu Ponu also had to open some plug-ins for these people.

For example, the gun he needs most at the moment, it is not difficult to study the gun itself, and when the time comes, he can directly change it on the arquebus.

The difficulty is the research and development of ammunition, the ammunition is not just loaded, but also to ensure his firing rate, it cannot be said that the trigger has been broken, and a bullet has not been fired.

To put it bluntly, Liu Ponu has already solved all the problems, and now there is only one problem left for them to solve.

When he came to his small village, Liu Ponu ran directly to the canteen, looking at the meal that had been prepared but almost no one came to eat, Liu Ponu couldn't help but look confused.

"What's going on? Are these people not even active in eating now? Liu Ponu said with a confused expression, and then looked down at the food.

Huang Cancan's steamed corn is like steamed rice, some green vegetables that I don't know what their names are, and some vegetables and meat, what kind of meat Liu Ponu doesn't know, anyway, as long as it's meat dishes, it's over.

Hundreds of people open their mouths every day to eat, even if Liu Ponu is greedy, he can't stand these people eating chicken or mutton every day.

Most of the meat here is game caught by the nearby people in the mountains, and what you eat depends on what the people can catch.

"Your Highness, I heard that someone has researched something, and everyone has gone to watch......" The guy in charge of cooking in the cafeteria said with a depressed face.

It's good to work well here, earn a lot and eat well, but you need to be forced to do more.

It must be kept clean and the meals are hot, which is more strict for the time required for the guy to cook.

In the summer, it was better, the food didn't cool down so quickly, but in the winter it was different.

It's good now, winter hasn't come yet, these people have given themselves such a big problem first, the meal has been ready for a while, but no one has come to eat, seeing that the food is immediately cold, and there is no accurate time to say when to come, where do you say you are reasonable?

"Got results?" Liu Ponu was overjoyed in his heart, and immediately ran to watch, but the empty stomach launched a resistance at the first time, Liu Ponu thought about it, and still felt that filling his stomach was the most important.

So he immediately picked up a bowl, filled a bowl full of corn, and filled it with some vegetables, as for meat, Liu Ponu didn't touch it.

The main reason is that he is used to a good life, Liu Ponu only eats good meat, even if it is chicken, he only eats meat that looks good, and he doesn't even look at the chicken neck and chicken head.

So, a picture of spicy eyes appeared.

Liu Ponu held a bowl in one hand and a fast child in the other, and hurriedly walked and ate while eating.

When I arrived at the place, the rice in the bowl was almost eaten.

Fortunately, he has the identity of a master, and after he came, everyone was also very forced to make way for themselves.

'......Boom'

The movement was not too loud, and the scene was not too shocking, as a metal bullet case erupted from its head in a burst of fire and choking smoke after the collision.

"Your Highness, it's ...... I made it ......" looked at Liu Ponu who suddenly appeared, even though Liu Ponu was very unsociable and holding a bowl and pulling the food to the innermost part of the fast, Huang San was still cheering excitedly.

For two months, Huang San has been a picture of his successful research every day, day or night, even if he is asleep and dreaming.

Even once made Huang San feel a little stunned, he tried all the methods, and finally let himself get it.

"How did you do that?" Liu Ponu divided the rice in the bowl into his mouth, threw the bowl to the person next to him and asked.

"Your Highness, I ......" Huang San was a little incoherent with excitement.

"Forget it, you just do it again, and talk as you go!" Liu Ponu waved his hand and directly interrupted Huang San's words.

has no cultural level, and at this time, the whole person is already excited to the point of incoherence, so he may not be able to say why, just operate it directly, and it can also make people calm down.

Immediately after, Huang San began to operate.

The specific operation is actually not difficult at all, the difficult thing is the choice of materials, the shell can be reused, and you only need to warp the bottom cap out and replace it with a new one.

"Your Highness, this is stone debris, you just need to put these crumbs in the bottom hat and buckle them! To make sure that the gunpowder could be ignited, I added some gunpowder when adding flint. Huang San explained as he operated.

Seeing Huang San's operation, Liu Ponu couldn't help but nodded.

Flint is actually flint, and the most used in later generations is lighters or something, but it is the product of refining, and now it is the original stone.

A direct impact of two flints can produce sparks, and the original bullet had a small hole in the bottom of the cartridge case, through which the flame ignited the projectile.

Perhaps considering that the sparks caused by the flint were not stable and might not be able to ignite the gunpowder in front through the small hole, Huang San deliberately added some gunpowder to the bottom hat to act as a ignition.

The advantage of gunpowder mixed in the primer is that as long as a small amount of spark is generated, it can definitely ignite it, and the gunpowder in the front compartment can be ignited smoothly.

Huang San skillfully loaded the primer, and then loaded some gunpowder from the top, so that the gunpowder could also flow through the small hole into a part of the rear of the road, forming a real ignition strip.

Logically speaking, this is also possible.

But here's the problem......

'Card ......'

"Uh-huh???"

'Kaka ......'

The expected firing was not successful, and the firing pin of the device kept hitting the bottom of the bottom cap, but the shell in front of it did not react at all.

There is no doubt that this time the experiment failed.

"That, Your Highness, maybe the gunpowder is a little too much, you wait a minute, I'll ......be fine right away" Huang San's face was full of embarrassment, and he couldn't wait to find a crack in the ground to get into.

At the same time, he hurriedly removed the bottom hat, took back the flint and gunpowder, and put a new bottom hat on it.

'Card ......'

'......Boom'

The expected picture finally appeared, and a relaxed smile finally appeared on Huang San's face.

After working for so long, it is finally harvest season, and I can finally get a good night's sleep.

However......

Although the experiment was successful, Liu Ponu frowned tightly.

"This method can be used, but the safety is not high......" Liu Ponu shook his head and directly poured a basin of cold water on Huang San.

"Ah???h Huang San, who was excited, suddenly looked confused, and looked at Liu Ponu with some confusion.

What does it mean?

Is it useless to co-author my research?

This......

Even if you are the crown prince, you can't arbitrarily deny the results of my efforts......

Of course, Huang San only dared to say these words in his heart, and still looked at Liu Ponu with a blank look on his face, hoping that he could give a reason to convince himself.

"First, the first test was not successful because the bottom cap of gunpowder was too much, and the gunpowder occupied the space needed to fire at any time, although the gunpowder is flammable, but too much will cause the flint to not be able to contact, even if it breaks through the gunpowder barrier and collides together, it will be unable to produce sparks because of the lack of rear force due to the previous consumption of a large amount of kinetic energy."

"Second, when it comes to production, there is no guarantee that all workers will be able to load the gunpowder according to strict standards, and the bottom cap is so big, and the result may be different with a slight shake of the hand."

"Third, even if the problem of the amount of the bottom cap charge can be solved, there is also a gap between the bottom of the cartridge case and the bottom cap, although the granular gunpowder will be used when it is used, but the gunpowder in the bottom cap is likely to change the attitude due to the violent movement of the soldier, resulting in the gunpowder in the bottom cap poured into the cartridge case, so that although the space required for the flint impact is left, it is also possible that the gunpowder in front cannot be ignited due to the lack of ignition materials."

"Fourth, it's still an old problem, the flint is too small and brittle, and the soldier is likely to break some small flint when he is moving vigorously, once this part of the space is released, it means that the flint contained in it will shake at the same time with the soldier's violent movement, although it is unlikely, but it cannot be ruled out that this situation will happen, especially when the cavalry moves, the action is too large, what if the flint collides and ignites the gunpowder in front?" Liu Ponu slowly said four questions.

The flint was originally very hard, but it was smashed into small particles by Huang San, and there was nothing wrong with those round and rolling, but I was afraid of some small flakes, which were very easy to break.

Of course, Liu Ponu will not only ask questions, but he is also thinking about how to solve them.

The flintlock pistol is used to ignite the gunpowder by striking the flint with iron to produce a spark, so it proves that the flint is possible, but is it not possible to use it for fixed ammunition?

Yes, it should work, but whether it is reliable needs to be said separately.

But no matter what, if you have an idea, you should experiment, at least get one first, and then find a way to get a more advanced one, you have already opened a plug-in, and you can't take out the firing medicine of later generations in one go, right?

Don't say that Liu Ponu won't be able to do it at all, even if he can, there is no way, those are all chemically synthesized, and he doesn't have that condition.

"The first one, you can try to put only a piece of flint of moderate size, add some gunpowder to it, add a small iron needle at the bottom, and when the firing pin hits, the movement of the iron needle will hit the flint to produce sparks, triggering the internal gunpowder, which should solve some safety problems."

"Second, let the paper mill make a batch of tissue paper and plug the ignition holes at both ends, which should solve the situation that the gunpowder is running around and cannot be lit at the critical moment, and it will not cause the fire to pass through the ignition hole, otherwise the gunpowder will ......."