After stirring the gunpowder, and waiting until the fire condensed into pieces, Wang Yu kneaded the gunpowder into slender strips with a diameter of two millimeters like flour. After that, the gunpowder strip is cut into small particles about three millimeters long.

Seeing Wang Yu cutting gunpowder, Gong Xiaoda suddenly realized what was going on: "I understand!" It turns out that the gunpowder made by Brother Wang Yu is the same as the gunpowder used in the musket of the Taixi people! ”

Another bird-gunned soldier also said: "Yes, I have seen the gunpowder used by those chimpanzee musketeers, their guns are made by Tessie red-haired ghosts, and it is said that they have the same barrel, the same size of projectiles, and the gunpowder is also one grain." But those Kunlun slaves were stingy and reluctant to show us their guns and gunpowder. ”

Most of the black soldiers of the Zheng Jiajun were fugitive slaves who escaped from Macao, some were black slaves who jumped ship and escaped when foreign merchant ships passed through Fujian waters, and some of the soldiers were Malays who came to China with the merchant fleet, and because of their dark skin, they were also assigned to the ranks of black soldiers. In addition, there are some white soldiers in the Zheng family's army, all of whom can't get along in Europe and come to the East to beg for a living. Both black and white soldiers were very fond of their muskets, and they themselves knew how to repair damaged guns.

"This gunpowder will dry at least tomorrow, I can't try the gun today, everyone is scattered!" Gong Xiaoda said to the onlookers.

Because there is not a lot of gunpowder that needs to be processed, Wang Yu can carefully knead the gunpowder into long strips of uniform thickness, and can also carefully cut it into particles of the same size. He knew that if it was a mass production of granule gunpowder, it could not be used this method, after the gunpowder was condensed into lumps, it was simply processed into long strips, and then processed into granules, because of a large number of processing, the gunpowder particles could not be uniform in thickness and size, in order to solve this problem, it was necessary to use a sieve to screen, the first time to screen the too small one, and then use a sieve with a relatively large hole for the second screening, too large to leave on it. Only those who are qualified can be used, and those who are unqualified must be returned for processing. Now these gunpowders are finely processed by Wang Yu and do not need to be screened.

It takes time to dry gunpowder, and Wang Yu used this time to ask for some more projectiles to polish carefully, so that the projectiles can conform to the caliber of his bird's gun.

When he was lying in bed at night, Wang Yu was not asleep, he was thinking about the production of sulfuric acid.

Sulfuric acid is known as the mother of the inorganic chemical industry, and people who study chemical industry know the important use of sulfuric acid, especially in the military, and sulfuric acid has epoch-making significance. It can be said that without sulfuric acid, there is no smokeless gunpowder, no xiao's acid, no high explosives.

The most primitive method of making nitric acid is also made of sulfuric acid.

Sulfuric acid is added to nitric acid, and then soaked in cotton fibers and dried, then ground into powder, and then made into granules, you can get powerful nitrocellulose gunpowder, which is a smokeless gunpowder of good quality. Compared with the black huo used in this era, smokeless gunpowder does not have thick and choking white smoke when firing projectiles, only a faint green smoke, so that the gunner will not be obscured by the white smoke. And the power of smokeless gunpowder is greater, as long as the outside is covered with a solid shell, it can be made into powerful grenades and flowering shells, and the flowering shells made of smokeless gunpowder are much more powerful than the flowering shells made of black huo medicine in this era, and the grenades made of smokeless gunpowder are also much more powerful than the primitive grenades of the Zheng family's military "national surname bottle".

However, no matter how powerful smokeless gunpowder is, it is still only a kind of gunpowder, and compared with explosives, it has no violence. That is, there is no solid closed casing, and smokeless gunpowder does not explode. In order to obtain a more powerful weapon, you must create explosives.

It's troublesome to make explosives, and you don't have to think about black suo gold, t en t, and C*4, these things can't be made in this era. Wang Yu considered using a relatively simple picric acid or Dana dynamite.

Phenol is needed to make picric acid, and phenol needs to be refined into coal tar, which requires the development of coal chemical industry to be manufactured in large quantities; The simplest way to obtain Dana glycerol is to first refine and process fatty acids from animal and vegetable oils, and then carry out saponification reactions to obtain glycerin. As long as soap can be made, glycerin can be made. Next, glycerin is nitrified with nitric acid to obtain xiaohuaglycerin, which is then mixed with xiaohuaglycerin such as wood pulp and pulp from papermaking, and after drying, the powerful Dana explosive is obtained.

The stability of picric acid is too poor, and it is easy to react with steel to become a very explosive picrate. Therefore, Wang Yu decided to choose Dana explosives for the manufacture of explosives in the future.

However, whether it is smokeless gunpowder or high explosives, sulfuric acid is required. How to obtain sulfuric acid, this is a difficult problem in this era.

Glycerol is readily available and can be easily produced in large quantities. However, without glycerin and nitric acid, explosives cannot be made, and to obtain nitric acid, sulfuric acid must first be obtained.

The easiest way to produce sulfuric acid in large quantities is the lead chamber method, which uses the characteristics that lead will not be corroded by acid to create a huge lead chamber, burns sulfur in it to obtain sulfur dioxide, and then oxidizes sulfur dioxide again with nitrogen oxides produced at high temperatures, and reacts with water to produce sulfuric acid after obtaining sulfur trioxide.

However, the lead chamber sulfuric acid generation tank, industrial tower and reaction tank are not so easy to manufacture, which requires various basic industries such as refractory bricks, metallurgical industry, forging industry, valve manufacturing technology, forging technology and so on to build a sulfuric acid production line.

Think about the current technology, even if you build a large-scale sulfuric acid production line, you should still consider laboratory methods to produce sulfuric acid.

The production of sulfuric acid by laboratory method requires glassware, various bottles and jars. Originally, Wang Yu considered using ceramic vessels to produce sulfuric acid, but the ceramic ware was opaque, and the surface of the ceramic would be damaged by long-term contact with strong acid, so it was necessary to use chemical experiment equipment made of glass.

But where do you go to get chemical lab equipment? Isn't there a foreigner here in King Yanping? Those foreigners must have a way to buy chemical experiment equipment from Macao.

But Wang Yu not only didn't see those foreigners, but also heard that the foreigners were by the side of King Yanping. The king of Yanping lived on the small island of Gulangyu, and ordinary soldiers had no chance to meet the king of Yanping. Those foreigners also live in Gulangyu, and with Wang Yu's current qualifications, they can't see foreigners at all.

It's better to make military merits first, and after making meritorious contributions, he will attract the attention of King Yanping, and he will be able to see the foreigners around him, and then he will be able to buy chemical experiment equipment through the foreigners. Although glassware cannot produce sulfuric acid in large quantities, the little sulfuric acid produced in the laboratory cannot meet the production of large quantities of smokeless gunpowder and explosives, so smokeless gunpowder is not used for the time being. When there is sulfuric acid, a small amount of high explosives is made first, which is used to make a small number of explosive bags and grenades, which can be used at critical moments.

Explosives produced by laboratory methods are valuable and can only be used by a small number of elite troops. Therefore, Wang Yu had the idea of establishing a special forces.

As for the flowering cannonballs, Wang Yu planned to use black huo medicine to make them. Because the explosion rate of flowering shells in this era is not high, it is good that half of ten shells can explode, and in naval battles, the hit rate of shells is extremely low, and it is too luxurious to waste valuable explosives to make flowering shells with very low efficiency.

I fell asleep in a daze, and when I woke up, it was already dawn.

All morning, Wang Yu was still polishing the projectile. During this period, many soldiers came to ask when they would try the gun, and Wang Yu told them that it would be fine in the afternoon.

In the afternoon, the gunpowder was finally dried, and Wang Yu had the first batch of granular gunpowder he had come to this era, although the quantity was very small, but if this experiment was successful, the officers and soldiers would definitely be impressed with him, and he could also help his comrades improve the gunpowder.

Ready to test the gun, a large number of soldiers came to the shooting range early to wait.

Two well-made bird guns were placed on the table, and after Wang Yu checked the musket for the last time, and found that there was no problem, he took out the granular gunpowder from the powder bag, fed the gunpowder into the barrel with a paper roll, and then stuffed a smooth projectile through the muzzle, and then compacted it with a whole strip, so that the loading of the bird gun was completed.

The target was fifty paces away, an inch-thick wooden gun target.

Wang Yu first lit the arquebus, then blew out the open flame, and hung the back end of the arquebus around his neck, and the front end of the arquebus was hooked with an iron hook on the gun.

He picked up his gun and aimed at the target fifty paces away. At this moment, Wang Yu found the feeling of entering the public security department and practicing target shooting at the shooting range.

The people around were staring at Wang Yu, wanting to see how powerful this well-made gunpowder could be with Wang Yu's homemade gunpowder.

Wang Yu held his breath and steadily aimed at the target. He knew that because the musket of this era was a smoothbore gun, the accuracy would definitely not be high, and it would be considered successful if it could hit any part of the target. He took aim at the target, his finger flicking the trigger.

The iron rod behind the trigger drives the iron hook and presses the fire rope hooked on the hook to the medicine pool. Only a deafening roar was heard, and the muzzle of the gun flashed red, and then a puff of white smoke was spewed.

The soldier in charge of watching the target ran to the target, took a look, and shouted excitedly: "Hit!" Hit! ”

Everyone ran to the target, only to see a small black hole left on the target, and what is even more powerful is that this small hole runs through the front and back! The one-inch-thick plank was forced to be struck by this musket!

"Oh my God! How powerful this is! Gong Xiaoda let out an exclamation.

The guns fired bullets from the new gunpowder could easily penetrate an inch-thick hardwood plank, which meant that it could easily penetrate the iron armor of the Qing soldiers. If it was not a wooden plank in front of him, but a Qing army armored soldier, then this Qing soldier would have turned into a corpse long ago.

Wang Yu knew that this Gong Xiaoda was a sharpshooter, and his marksmanship was much more accurate than his own. During Zheng Chenggong's Northern Expedition, Gong Xiaoda had a bird gun and killed three Qing soldiers. So he handed the bird gun to Gong Xiaoda: "Xiaoda, you can also try a shot!" ”

Gong Xiaoda took the musket excitedly, first took the gun in his hand and looked at it for a while, familiarized himself with the feeling of this gun, and then loaded the bird gun according to Wang Yu's charge, and then picked up the gun, aimed at the target and pulled the trigger.

"Boom" The muzzle of the gun flashed red, and white smoke filled the air.

Who knew that the target of the gun fifty paces away did not move at all, and it was obvious that this shot was missing, the bullet missed the target, and I don't know where it flew.

"Hahaha!" The crowd burst into laughter.

Lin Ergou said sarcastically: "What sharpshooter, such a big target can't be accurate." ”

Chen Buffalo, who likes to coax, also said: "Xiaoda, you still don't want to be a bird-gunned soldier, you can't beat such a good gun, you better go back and hug your daughter-in-law." ”

Wang Yu thought that Gong Xiaoda must be unfamiliar with this gun, so he comforted: "Xiaoda, it's okay, you can shoot a few more shots, and if you are familiar with the performance of this gun, you will be able to shoot accurately." ”

Gong Xiaoda nodded, continued to reload the bullet, and fired again. However, the result was disappointing, and the shot still missed the target.

tried four shots in a row, and by the time of the fifth shot, Gong Xiaoda accurately hit the bullet into the red heart in the middle of the target! This shot won full applause.

"Fifty paces, the distance is too close for this gun! I'll try again seventy steps away! Gong Xiaoda looked at the gun target and said.

Retreating to a distance of seventy paces, Gong Xiaoda picked up the loaded musket, aimed at the bullseye and pulled the trigger.

"Boom" a gunshot rang out, and the bullet once again pierced the red bull's-eye!

Gong Xiaoda moved the target to a hundred steps away again, and this time, everyone raised their hearts.

Who knows, after a gunshot, the bullet still hits the heart accurately!

"Good marksmanship!"

"What a sharpshooter!"

The onlookers cheered.

"It's over!" Gong Xiaoda clenched his fists to everyone, "It's not that my marksmanship is accurate, it's Brother Wang's bird guns and gunpowder sharpness!" ”

It is true that the gun is a good gun, and it is not easy for an ordinary bird gun to hit a person in fifty steps, and because of this, it is necessary to line up to shoot and form a dense firepower. And this bird's gun, because of the iron material used, the barrel is thick, the inner diameter is not too large, the barrel length is long, and the particle gunpowder ensures that the gunpowder gas can fully expand, so the muzzle velocity is fast, and the bullet is not easy to float. If it were any other gun, at a distance of seventy paces, the bullet would have long since gotten gone. It's a pity that this is not his own gun, and he has to return it to Wang Yu, thinking of this, Gong Xiaoda felt a little uncomfortable.

Unexpectedly, an unexpected surprise happened: Wang Yu patted him on the shoulder: "Little big brother! This gun is for you! ”

"Really?" Gong Xiaoda hurriedly hugged the bird gun tightly, as if he was afraid of being snatched back by Wang Yu, but he said politely on his mouth, "Such a good gun, Brother Wang really wants to give it to me?" ”

Wang Yu nodded: "Little big brother, your marksmanship is much more accurate than mine, this kind of good gun is also a waste in my hands, it is worth it for you to use!" ”

"Thank you, Brother Wang!" Gong Xiaoda hurriedly hugged his fists and thanked him. Until a long time later, he was still pinching his thighs to see if he was dreaming.

At this time, Chen Python was very unhappy: "Damn, you are a Wang Yu boy!" This gun was made of Lao Tzu's silver! Lao Tzu was originally given to your boy, you are good, you are very generous, you will give it away! Come, give me back the money! ”

While speaking, Chen Python also spread his palm to Wang Yu, as if asking Wang Yu to return the silver to himself.

Of course, Wang Yu couldn't take out the silver and return it to Chen Python, so he said: "Don't worry, I have already thought of a good way to make money!" ”

"What's the solution?"

Wang Yu pulled Chen Python aside and whispered in his ear: "Look at Chen Shuijie's blacksmith shop, the efficiency of producing refined iron is really too low!" I have a good way to make him more efficient. However, I asked him to pay for it. I don't want his silver either, I want to buy shares, and our brothers will have money in the future! ”

"Really? What's your best idea? Chen Python's eyes widened.

Wang Yu replied with confidence: "The specific method, when we go to Blacksmith Chen another day to discuss with him, I have to draw the drawings of the new blast furnace first." As long as this thing can be made, how much money he makes in the future will be distributed to me. You are my eldest brother, and you have helped me so much, I can give you a part of the shares. ”

Chen Python smiled: "I'm afraid that blacksmith Chen doesn't believe you and refuses to let you join the shares." ”

No one noticed at all that their immediate boss, Chen Peng, was standing far away outside the shooting range, with a look of anger on his face.

Chen Peng was also surprised by Wang Yu's recent performance. Wang Yu, who was originally a little stupid, why did he suddenly become smart? I don't know if this is a good thing or a bad thing for me.

Chen Peng was ready to surrender, and what he was most worried about was that someone would ruin his big thing at this time. As the saying goes, cutting off someone's wealth is like killing your parents. If someone dares to stop his glory and wealth, then Chen Peng must get rid of this hidden danger!

Through Wang Yu's observation, Chen Peng knew that this person was a talent. When he used Wang Yu as his personal soldier, he valued his loyalty and honesty, as long as he gave him a little benefit, he would definitely not betray himself. But now Wang Yu has suddenly changed. This person is not only good at archery, but can also improve firearms! If this kind of person is used for himself, then he can serve the Manchurian master well, and Chen Peng, as his boss, can also get more benefits. But if such a person can't be used for himself, then in the future, he will be the great enemy on the road to promotion and wealth, and he must be eliminated!

Wang Yu, who had very little knowledge of history, didn't know that Chen Peng was going to defect to the enemy, and if he could know, he would definitely not dare to show it like this at this time.

At this time, poor Wang Yu didn't know that Chen Peng had already begun to think about him. At this time, Wang Yu was still continuing his plan: first help his brothers in the army improve the gunpowder, even improve the gunpowder and cannonballs of the naval battleship, and make a few flowering cannons pop out. When the time comes, when the Qing army crosses the sea, it will definitely cause greater losses to the Qing army!

After dinner, Wang Yu returned to the house, and was about to draw the drawings of the new blast furnace, but heard someone shouting: "Brother Wang Yu, Mr. Qian asked you to go!" ”