The Fisherman's Tomb is probably the most heavily guarded tomb in the world, with two ironclad ships constantly swimming on the surface of the sea and howitzers on the hill. Less than a hundred meters away from Li Xiao, more than a dozen mortars were scattered.

Sun Xing also served as the head of Li Xiao's guard, and he was worried about visiting the mouse cave on the mountain.

Early in the morning, Xiaoyu went up the mountain to bring breakfast to her brother. Li Xiao understood her thoughts, but she just wanted to go up the mountain every day to see the old fisherman. This child has been following the fisherman's ass since he was a child, and his feelings are not ordinarily deep. After the funeral, the stubborn Xiaoyu lived at the foot of the mountain on Changxing Island, and would come to sweep the fisherman every morning, and bring breakfast to Li Xiao by the way.

If it weren't for the rules of filial piety for women, it is estimated that Xiaoyu would also go to the mountains to build a thatched hut and be a neighbor with Li Xiao.

"Auntie, the handsome man is thinking about things inside, and no one can disturb him." Today is a little special, Xiaoyu walked to the door of the hut and was blocked by Junzi.

"Thinking about things, even I can't see it?" Xiaoyu glanced at Junko dissatisfied, it was the first time that she was blocked in front of her eldest brother's room.

"Auntie, really, that's what the handsome man ordered. Said to be tinkering with something important inside, a special underground gag this morning. Don't talk about you, even if it's me, you can't go in unless you pass it through. "Junko is a little afraid of Xiaoyu.

If this girl is really rude, she will be the one who destroys the world and destroys the world. Don't say that you can't mess with yourself, even the handsome can't be provoked. Whoever provokes this aunt in the world will definitely be torn to pieces by his rampaging brothers, and even the ghost has to play a jigsaw puzzle.

"I'm going to go in! Move! Sure enough, my aunt's stubborn temper came up.

"Grandma! Grandma! Don't be embarrassed, you're ......! Junzi stretched out his hand to stop him, Xiaoyu's chest straightened, and the bluffing Shunzi hurriedly retracted his claws.

"Xiaoyu, don't mess around, big brother has something to do today, put breakfast outside for a while and let Shunzi bring it in." was making a lot of noise, and Li Xiao's voice came out from inside.

If Shunzi was amnestied, he had confidence in his heart and his chest was also strong.

"Big brother, what's the matter with you, why are you still hiding and not seeing anyone." Xiao Yu shouted inside through the door.

"Tinker with something new, put breakfast at the door, obedient." Li Xiao seemed to be really busy with something, and the sound of glass colliding came from inside.

"Oh!" When the eldest brother spoke, Xiaoyu couldn't help but listen, glared at Junzi and turned around to sweep the old fisherman's tomb.

The day before yesterday, a statue had just been erected in front of the tomb of the old fisherman, which was a statue poured from pure steel and painted with black lacquer. Xiaoyu has to wipe it with a cloth towel every day!

The old man on the statue is wearing a gown and bare chest, holding a wrench in one hand and wiping sweat with the other. Li Xiao would like to kindly remind him that the statues in the square of the future are all shiny on the key parts of the upper and lower bodies.

But after thinking about it for a while, Li Xiao didn't speak. If you do this to this statue on Changxing Island, you will definitely be broken into pieces by the disciples and grandchildren of the old fisherman, and then thrown into the sea to feed the sharks, and even the scum will not be left.

Picking off a leaf that had fallen on the statue's shoulder, Xiaoyu smiled at the fisherman.

Li Xiao didn't have time to care about these things, he was busy in the hut. You can't be idle this month, you have to come up with something new.

Carefully put a two-inch long wooden tube into the melted wax, and after the wooden tube is wrapped in wax oil, carefully pinch it out with tweezers and put it away. Taking advantage of the fact that the wooden pipe was not cool, I hurriedly wrapped it in oiled paper, and then put the wooden tube wrapped in oiled paper into the wax and then plated with wax.

It's not easy to complete this process, and it's not bad to check the seal. If you don't have plastic, you can only use this thing first.

Two thin zinc sheets were found and cut into two circles against the wooden pipe, one of which was firmly glued to the bottom of the wooden pipe.

Drill a hole in the middle of another zinc plate, and insert the polished carbon rod into it.

Manganese dioxide and graphite were carefully mixed together, and a mesh made of fine linen cloth was used to hold the two things inside. On this net, it has long been brushed with ammonium chloride solution and starch from the potatoes.

After making it, it was put into the wooden tube with the bottom of the zinc plate glued, and Li Xiao carefully poured in a little gelatin. Carefully stirring with a small wooden stick, manganese dioxide and graphite gelatin are mixed together to form a slimy paste.

Then insert the carbon rod in the middle, and the zinc plate with holes is bonded and covered.

Li Xiao breathed a sigh of relief, and now is the time to test whether it is successful.

Two wires were found, one glued to the zinc plate at the bottom and one glued to the carbon rod head. The small light bulb attached to the middle of the wire suddenly lit up.

"Hahaha! It worked! Li Xiao looked excitedly at the world's first battery.

The reason why there is a procedure for dipping wax, it is because there is no plastic. When the battery is wet, it will significantly affect the battery life and quality. Li Xiao doesn't want his soldiers to run out of power when they use it!

Daming already had a primary refinery that could refine gasoline, diesel, and kerosene. But the chemical industry is basically zero, and the reason is ...... Li Xiao also didn't know how to make this thing.

Materials science is a fundamental discipline that requires the combined efforts of many generations to see the benefits. Daming's current level of science and technology is entirely the result of Li Xiao's seedlings. Once the sapling exceeds the height of the person pulling the seedling, it ...... It's hard to pull it out again.

The small light bulb kept on for ten hours and twenty-five minutes, and although it didn't feel good, it could only make do. I can't help it, that's what I made myself. Maybe after the hands of the Xu brothers, they can improve it, anyway, they are at this level.

After tinkering with the battery, Li Xiao thought carefully about what a stand-alone phone looked like. The wired telephone was a stand-alone machine, and I came into contact with Li Xiao when he was a recruit. At that time, he was still a signal soldier, running back and forth with a wired wheel on his back all day long, and passing the human body was the foundation laid at that time.

Fortunately, this is Changxing Island, Li Xiao ordered to go down, and the old fisherman's subordinates quickly found all the materials. According to the appearance of the field walkie-talkie in memory, Li Xiao is the same assembly.

Standard old-fashioned telephones, the microphone and receiver are still separated. There is no dial key, and you need to pick up the phone somewhere.

The ringing was cast by the old apprentice himself, and the sound was crisp, loud and pleasant, but the damn phone bell was a silver bell. In the future, there will be more and more phone calls, how much money will be paid, and the loser who will not live his life.

Kicked the rammer twice, didn't tell him the reason, and figured it out himself. Li Xiao is very worried that this gang of rammers will harm his own money, and it seems that the scientific research department will have to take good care of the money in the future.

Well! You have to have someone to watch it.

Tell Junko to spread the line all the way to the villa at the foot of the mountain, and ring the bell by himself in the hut. picked up the earpiece and put it next to his ear, and after a long while, he heard Xiao Yu's trembling voice: "Who are you?" ”

Without the habitual "feeding" of later generations, Li Xiao was obviously a little uncomfortable: "I'm your eldest brother, how can I hear my voice clearly?" ”

"Mom!" Then there is the sound of the microphone falling to the ground.

"Dashuai!" The sound of a straight came from inside the earpiece.

"How is Xiaoyu?" Li Xiao hurriedly asked Xiaoyu what was going on.

"Grandma was scared away......!" Junko's tone was very helpless.

"Give it to me." Sister Qiao's voice sounded in the earpiece again, and her tone was full of excitement.

"Sister Qiao, how is the voice, can you hear it clearly?"

"Oh my God! I can really hear the sound, this is not a good ear! Brother Xiao'er, hear clearly, very clearly. I can hear even the birds on your side! ”

"Bird calling?" Li Xiao looked left and right, there were no birds! At this time, the stomach screamed angrily, I!

Only then did Li Xiao remember that he hadn't eaten water and rice since last night.

"It's clear, Sister Qiao gave the phone to Junko. Junko! You call the Xu family brothers over, I have something to order. ”

"No!"

Li Xiao can still play with a wired phone, but if he plays a wireless phone, Li Xiao will not have that ability. But at least the radio has to be sorted out, Morse code is already very mature in the Ming Dynasty, as long as the radio is drummed out, Li Xiao can immediately control the latest situation in the country.

If the telegram had been relayed, it would not have been difficult to know what was going on on the front line in Ceylon. In fact, the navy is the most in need of radio communication, and the communication between naval ships still depends on lights.

The light signal is a thing that will expose the target at night, and sometimes it is not obvious during the day. And the information conveyed is very limited, and if you want to convey something a little more complicated, you can only use flags. But the flag language can't be used at night.

It's much easier to have a radio, no matter what kind of sea conditions and weather, you can use it to communicate. As long as you use a different codebook, confidentiality is not a problem.

That's what Da Ming is doing now, and it's hard for people who don't have a codebook to unlock the secrets inside. In those days, there were no mathematicians like Turing.

However, this kind of thing can only be done by relying on the Xu family brothers. When the old man was there, the things about electrical appliances were also made up by the two brothers. The last time Li Xiao saw them, these two guys had actually started to study diodes.

When Li Xiu was asked to go to Jiangxi, it was worth a thousand dollars to invite such two people from Xu Guangqi's house.

Shunzi has always delivered the news quickly, and the Xu brothers soon came to Li Xiao's hut. After the funeral, the two did not leave at all. According to the etiquette, these juniors need to burn the first seven before leaving.

But there was a guy standing behind them, looking sixteen or seventeen years old, like a servant. This made Li Xiao a little strange. Anyone who knows the rules knows that you can't lead any kind of person to Li Xiao's side, and besides, if you see Li Xiao, you have to bring Chang Sui, which is a bit big.

"Who is this man?" Li Xiao glanced at Xu Ermo dissatisfied.

"If you go back to Dashuai, this is the talent that our brother is ready to promote to Dashuai." Xu Ermo has spoken the official dialect well in the past two years, and opening his mouth is no longer the kind of Jiangxi dialect that has to be repeated several times and has to rely on translation.

"Talent?" Li Xiao likes to hear these two words the most, and immediately became interested.

"That's right! It's talent, you can see the guns he made, just look at the guns he made. ”

"Guns? Take it and take a look. Li Xiao commanded, and the boy who looked like a servant immediately ran out, came in with a cloth bag, opened the cloth bag and held it to Li Xiao with both hands.

As soon as this gun arrived in Li Xiao's hand, Li Xiao was really taken aback. This...... How can this thing resemble the famous MG-34 like this? I remember that I used to think about equipping this famous general-purpose machine gun, but in the end I gave up because of the process and materials.

The General Purpose Machine Gun means that this thing can be used as a heavy machine gun or as a light machine gun.

This thing in front of me, the barrel full of heat dissipation holes, the bullet chain feeding, the front tripod, is too similar, it is too similar.

"How do you use this thing?" Li Xiao pretended not to understand.

"Big ......! Handsome! The little guy was visibly nervous and stuttered a little.

"Don't be afraid, since you made it yourself, say it yourself. This can be regarded as a test for you, and when I see Shangguan in the future, I can't even understand what I said, how can I rest assured that I will appoint you? Li Xiao stretched out his hand to stop Xu Ermo, who wanted to speak in his place.

The little guy took a deep breath, calmed his mood, and with a few stretches of his hand, he disassembled the machine gun on the desk into several large parts.

"This machine gun is fed by a chain, and these holes on the outside of the barrel are used to dissipate heat. Also, there is a wrench here, and you can quickly change the barrel with a single pull. ”

"That's all!" Li Xiao glanced at the little guy with a sweaty head.

"Uh......! This gun used a nine-millimeter heavy machine gun standard round with a rate of fire of ...... The rate of fire can reach three hundred rounds per minute. ”

"Three hundred rounds per minute?" In memory, the MG-34 rate of fire could easily break through one and a half thousand rounds per minute. The rate of fire of 300 rounds is indeed not very conspicuous. But think about the current Makqin, the rate of fire is only 180 rounds.

And this thing needs to be carried by four people. Unlike the MG-34, one person carried it and left. All you need is an additional ammo hand!

"Yes, three hundred rounds per minute. If it is improved, it can reach more than 350 rounds. "When it comes to his profession, the little guy is clearly confident.

"With such a fast rate of fire, can your barrel stand it?"

"That's why this is designed so that the barrel can be quickly replaced. If you are proficient, you can replace it in 15 seconds. "The little guy took the barrel and showed how to install the barrel, and it was very fast.

"When firing rapidly, you can also change the barrel while the chain is being replaced. In general, it is possible to use three barrels in rotation with a spare three. After trials, no problem. ”

"Hmmm! It's really good, let's talk about the specific parameters. ”

"The caliber is nine millimeters, the rate of fire is 300 rounds, and it can be fed by drums or chains. If you use a drum, the reserve is 75 rounds. With the chain, one cartridge is 600 rounds.

The whole gun weighs twenty-five pounds and is one meter and twenty-one ...... long! The little guy quickly recited the parameters, and he could see that the data was rotten in his head, otherwise he would never have been able to recite it so quickly.

"What's your name?"

"Dai Zi!"