As the torch-lit mine shines with silver glow, Luo Lan climbs a hill with Daisy and can't wait to ask her about the rocket.

"Your Highness, I just stumbled by mistake. That day, I saw a worker using a bamboo tube to draw water to drink, and I thought, can we use a bamboo tube to make a powder cartridge? The bamboo tube is sturdy and hollow, which is perfect. ”

Daisy said modestly, but the little chatter at the corner of her mouth couldn't hide it, this Lori was happier than anyone else.

Luo Lan applauded: "You are so smart, why didn't I think of using a bamboo tube?" ”

In fact, the barrel of the early assault rifle was made of bamboo barrel, and it can be said that bamboo played an extremely key role in the early use of firearms.

Luo Lan's understanding of this aspect only comes from documentaries, and he can't compare to Daisy in terms of professional knowledge, and now he is very amazed by Daisy's ingenuity.

"It's great, I've seen the horrific lethality of rockets. Daisy, how many rockets can you build in a day? "Luo Lan is a little impatient, if the rocket is energy production, it will be terrible.

Daisy's expression darkened, and she said sullenly: "It's less than a hundred a day, I'm sorry." ”

So little?

"Why are there only a hundred? Are there any difficulties? ”

Daisy lowered her head: "General gunpowder can't be used, I need to purify it repeatedly, only the gunpowder that has been purified many times can make the rocket have strong lethality, and now due to the lack of sulfonite, the output of gunpowder in a day is very small, and the rocket is naturally very small." ”

Daisy said in a low tone: "Sulfonite is too critical, there are too many sulfonite impurities in the mining area, and it is difficult to purify sulfonite, so we can't make a large number of rockets ......"

Daisy was about to cry when she spoke, but Luo Lan hurriedly comforted: "It's okay, it's okay, I don't blame you, it's just strange, don't cry." ”

Luo Lan became a "kind old father" again, and Daisy's heart was too fragile.

"I'm not crying...... I will do everything I can to make more rockets for Your Highness! ”

Reassured, Daisy mustered up her energy again.

Luo Lan touched his chin and thought for a moment, and suddenly said, "The purity of the volcano's sulfur stone should be very high, right?" ”

"Yes, it's very high, if we have volcanic sulfur, not only can we make rockets in large quantities, but we can also reduce the requirements for saltpeter, and we can also increase the lethality of rockets!" As soon as Daisy heard about the volcano, she immediately became excited, and she wanted a volcano in her dreams.

Luo Lan also wants that high-purity natural sulfur is simply a treasure, but the volcano is in the southern state, and it cannot be obtained for the time being.

"Don't worry, Daisy, we'll have a volcano soon."

Luo Lan smiled, sooner or later, the southern state will be in the bag.

Daisy was overjoyed when she heard this, but her face darkened again.

"Your Highness, there is a very serious problem with the rocket, its accuracy is so poor, it is almost impossible to hit the target at a distance of more than fifty meters, and it is more than thirty meters away, but the head is aimed at the foot."

The range of the rocket is actually very long, and the effective lethality is far more than that of the bow and arrow, but the accuracy is a big problem, and if you shoot a hundred meters, the elite archer may be able to hit 100 shots, but the rocket is basically 100 misses.

Luo Lan had already thought about this question, and he smiled and said, "One rocket is useless, but what about ten, fifty, or hundred?" The wooden platform you use to launch rockets can be transformed into a wooden barrel. ”

"Wooden tubes?" Daisy was puzzled, and Luo Lan used a wooden stick to draw a pattern on the ground.

The pattern is a hexagonal wooden cylinder, like an elongated basket, with multiple compartments that can hold a rocket.

Luo Lan introduced while drawing: "Our carpenters can make this wooden cylinder, it is called a barrel transmitter, which can load dozens of rockets at a time, ignite and fire a salvo of arrows, even if they are 100 meters away. Do you imagine that if a hundred canister launchers were launched at the same time and thousands of rockets flew out, would the cavalry charging on the opposite side still live? ”

Daisy swallowed and shook her head cutely, "Can't live." ”

She understood the true role of rockets, which were meant to saturate attacks, not precision attacks.

Subsequently, Luo Lan also introduced a series of rocket weapons such as "Bamboo Tube Assault Rifle" and "Rocket Chariot" to Daisy, and Daisy opened her mouth wide.

These things can be made, and they don't require much craftsmanship, as long as someone guides them.

As for iron firearms such as cannons and three-eyed guns, we have to wait for a while, after all, Phuket's industrial technology is still too backward.

This night, the two talked for half the night, and only stopped in the middle of the night.

Daisy was also sleepy, covering her mouth and yawning, secretly looking at Luo Lan.

Luo Lan sent her back to the mine to rest, and planned to find a random place to sleep.

Daisy still looked at him secretly, and she looked like she wanted to say something.

Luo Lan asked her what else was going on, and she hurriedly shook her head: "It's gone, it's gone, go down and rest." ”

She blushed again as she spoke.

Luo Lan scratched his head and thought for a while before remembering: "By the way, when you said that you would create a rocket, I would fulfill your wish, you say." ”

Daisy froze, lowering her head and pinching the corners of her clothes, she obviously cared about this.

Luo Lan looked at her gently: "Do you want anything?" ”

Daisy snorted and was about to speak, when a cry came from the darkness: "Found a silver mine!" ”

The cold voice frightened Daisy so hard that she hit her head against the wall.

Luo Lan hurriedly hugged her and rubbed her head distressedly.

"It's Rick's voice, what's that guy's name in the middle of the night."

Luo Lan couldn't cry or laugh, Daisy patted her chest, and said embarrassedly: "Your Highness, go and see Mr. Rick, I'...... I rested. ”

"What about your wishes?"

"Next time, Your Highness will be busy." Daisy ran into the mine and squeezed into the covers.

Rick had already arrived at the mines, and he had brought a few cavalry, and the sound of horses' hooves broke the silence of the night.

"Rick, what the hell is your name?" Luo Lan went out to ask, and Rick rolled over and dismounted, the torch illuminating his flushed face.

"Your Highness, O Silver Mine! We used up the last of our bombs and didn't find any silver mines, so we were going to give up. As a result, tonight, a rock suddenly collapsed, revealing white silver ore! Chisel a large piece of stone! ”

I'm afraid that a large piece of Rick's mouth is not a small amount, otherwise he would not be so crazy.

Although Luo Lan expected to dig out the silver mine, he was also very happy at this time.

Phuket finally has something valuable, and it's not easy to collapse now.

We have strategic resources!

"Your Highness, when will that Lady Ai Iman return? She can sell rum and silver mines, right? ”

Rick's mind is active, and he ponders trade.

Luo Lan looked to the north, and Ai Yiman's delicate face and wild figure came to mind.

At this time, in the northern sea, a shore port.

Several merchant ships that had been on the road for two months docked on the shore and would cross the East China Sea to Bishui Bay as soon as it was dawn.

There was silence on board, and the sailors were asleep.

The holds of the three merchant ships were filled with inferior pyrite, which had been purchased from the north for one hundred kilograms of silver.

A big man with cheeks was walking around the ship, keeping vigil for the fleet.

When he reached the other end of the deck, he saw the captain looking at the moon.

"Ai Iman, why don't you rest?" The cheeky man frowned and said, "Don't be nervous, Will is too lazy to intercept pyrite." ”

Ai Yiman turned his head and chuckled, casually tied his hair in his braids and said, "I'm not nervous, I just can't sleep." Our side is going well, I don't know what happened to Luo Lan, everything he does is to find death, I'm really afraid that Barron will kill him. ”

The corners of Ai Yiman's mouth were lightly raised, and his proud figure was reflected in the moonlight.

"How could Barron kill him? Both of them are princes and lords of the Sea Spirit Kingdom, and there will be no war between the lords, and there is a king watching them. Mead felt that Ai Iman was unfounded.

"Ah, poor foolish prince."

Aiman didn't explain, she said something Mead didn't understand, and went into the cabin with her hair in a cool braid.