The door of the inner compartment of the Xuanyi was about two quarters and reopened in less than three quarters.

Lin Xi's cheeks were crimson, wrapped in fur, sitting on a low couch, and was carried out again.

The important people on the Xuanyi were all here, and Tu Xi was just about to greet them, but Hui Niang stretched out her hand to stop everyone: "The Venerable Master has worked too hard, he is barely clear, and there are many important things to explain, so please don't make a noise and listen to the Venerable Master's orders." ”

And they sat down.

Lin Xi always felt that his consciousness and his body's reaction were far apart, and it often took half a second to a second to react, which was particularly bad, but at the moment of life and death, he had to stand up, he whispered: "Hui Niang, I'll speak, you get closer, and say to them in a louder voice." ”

Hui Niang took a low table and sat down at the bottom of Lin Xi.

Lin Xi said: "I told you just now, you have done it now, take it first." After a while, if you encounter a problem, ask a question again. ”

Hui Niang nodded, stood up, and walked into the circle of people: "The Venerable Master said that he had just instructed everyone to show the Venerable Master the things that had been done in turn. When the review is finished, and there are still questions to ask, he will give time to ask questions. Commander Song, you can designate it. ”

Song Aoxing stood up and looked around at everyone: "Which of us is the simplest and most mature, take it out first, raise your hand and speak." ”

The first to raise his hand was Mu Sili, a master craftsman who made jewelry and goldware for electric bells.

Song Aoxing pointed to Mu Sili, the master of jewelry and gold: "Master Mu Sili, please speak." ”

Mu Sili, the master of jewelry and goldware, arched his hand to the surroundings: "Back to the Song Dynasty command, the staff department was ordered to make electric bells, as well as telegraph buttons, and now it has been completed." ”

Song Aoxing asked: "Have you ever checked it?" ”

Mu Sili, the master of jewelry and goldsmithing: "No, the Venerable Master has not yet commanded. ”

Song Aoxing said: "Then you present the things, the next one." ”

Mu Sili, a master craftsman of jewelry and goldware, took two electric bells and two telegraph buttons, and presented them together.

Lacquer master Diao Rumu raised his hand, and Song Aoxing nodded: "Lacquer master Diao Rumu, what do you have to say." ”

Lacquer master Diao Rumu took out a few large and small spools: "Back to the Song Dynasty command, I collaborated with the copper master and the goldsmith to make tung oil copper wire wrapping, Fangcai tung oil copper wire wrapping, tung oil hemp wire copper wire wrapping, all have been used, this is the rest, I am here to hand over the decree." ”

Song Aoxing said happily: "In this way, it has been applied? ”

The lacquer master Diao Rumu: "Exactly, not only that, this thing is extremely useful, I have already instructed to go down and make more." ”

Song Aoxing asked again: "Is there anything else that has been formed?" ”

Song Aoxing looked at it: "In this way, please ask the Venerable Master to guide you first." ”

......

Lin Xi asked people to take two batteries, and instructed to put the telegraph buttons and electric bells in place, and asked someone to bring the tung oil-clad copper wire:

"Mu Sili, you have an idea, you can watch me draw a picture and tell you about it."

Hui Niang hurriedly asked people to light more candles.

Lin Xi took the sketchpad and quill:

"From the positive pole of the battery, you use a copper clip, wrap the tung oil hemp wire, cut off a section, about two feet, the copper wire at both ends, leave half an inch long for each, scrape the tung oil with a knife, use a soldering iron, melt the rosin and solder, bury the copper wire head in it, after a while, see that the copper wire is tinned and changes color, then add the copper wire and solder to the butt of the copper clip, and weld it firmly.

And then on the other end of the wire, you clip it to a copper clip on the telegraph button.

Then make a tung oil hemp silk wrapped copper wire, and also scrape the two ends.

One end clamped it to the other copper clip of the telegraph key;

There is also a head, which is clipped to a copper clip of the electric bell;

Cut off two more feet of copper wire, and you will also scrape half an inch at both ends, and clamp one end to the other copper clamp of the electric bell;

There is also a copper clip that is also welded to the negative pole of the battery.

Once connected, you press the telegram button and give it a try. ”

......

Mu Sili was ingenious, according to Lin Xi's requirements and drawings, but in a quarter of an hour, he took a few masters to install the batteries, telegraph buttons, and electric bells.

Then Mu Sili decisively pressed the telegram button.

The electric bell suddenly remembered, and the sound was loud and harsh.

Mu Sili was so frightened that he immediately stopped, and the electric bell also stopped.

Mu Sili slowly pressed the button again, and the electric bell really made a big noise.

Lin Xi raised his hand to stop: "Take the button." ”

Mu Sili brought the telegraph button to Lin Xi's hand, and Lin Xi pressed it rhythmically for about a breath, and the electric bell rang for a while;

Then Lin Xi paused for a moment, and then pressed for about a breath;

Then Lin Xi paused for another breath, and then pressed for about a breath;

Then there was a pause for two breaths,

Then Lin Xi pressed two breaths and stopped two breaths;

Press two breaths a second time and stop two breaths;

Then press two breaths a third time and stop two breaths.

Then Lin Xi pressed a breath and stopped for a breath;

Press a breath a second time, stop a breath;

Press a breath for the third time and stop for a breath.

Then stopped.

Lin Xi said: "

We can make an agreement, short sounds, called dots; The long sound is called a horizontal sound.

Does anyone remember what I was signaling just now? ”

Mi Sanmei jumped out and said: "Master, you have sent three short, three long, three short, well, that is a little bit, a little horizontal, a little bit."

Lin Xi gently clapped his palms:

"Mi Sanmei is very good;

The telegraph sound signals just now are - three short, three long, and three short, also called dots, horizontals, and dots.

In our case, this is the telegraph meaning of an emergency call for help.

Who would have thought that what use this thing would be? ”

Mi Sanmei said, "If the Venerable Master presses it next to the bed, everyone in the room will hear it. ”

Hui Niang, Zhen Niang, and a few palace maids burst into laughter, and one of the palace maids said, "If the Venerable Master wants to ring the bell, where can we wait to hear the sound, then it is time to beg for beating, and Hui Niang and Zhen Niang should punish us for not having a look." Mi Sanmei thinks it's ......"

Mi Sanmei suddenly thought of this, and she was a little embarrassed, and argued strongly: "If yes, if yes, what if you occasionally have an oversight?" ”

Zhen Niang said: "Mi Sanmei was also well-intentioned, but the Venerable Master is here, of course this method can be used, but it is not the most important. ”

Tu Xicai's eyes lit up: "Yes, Zhen Niang's words, I do have some thoughts, this is a telegram transmission, the most important thing, it is indeed a lookout post, we put the telegram button on the lookout, if we find something, agree on a signal." Put the electric bell in the cabin, or in the bottom bilge, so that you will not miss the transmission due to wind and rain, artillery fire, and fighting. Mu Sili, I will send someone to help you measure the length of the mast, and you can quickly lead the button from the lookout to the general platform and the command cabin. ”

Tang Hanlin said: "Not only that, but there should also be an electric bell from the command cabin, leading to the lookout post, to the steering wheel, and to the bottom cabin, and transmitting it in both directions, so that the command speed will be more than three times faster." ”

Qingxu Zhenren Wang Zhong said: "The garrison defense also needs such a thing, this tung oil hemp silk wrapped copper wire, I think it is very flexible, and the skin is also strong, and it can be led from the boat to the land, but if you step on it, it will not last." ”

Jingshan Taoist said:

The master's words are wrong, and the commander Tu said that the copper wire should be laid on the mast, and if you think about it, you can't wrap it, so it's too wasteful of copper wire, so you should make a wooden clip, nail it to the mast, and then carefully use cow tendon or something else, put the copper wire in two, firmly hold it on the wooden shelf, and not be forced, so that it is safe.

Then, if we go down from the ship, we should also erect a mast on the ground, or thirty paces, or fifty paces, and see how much weight the copper wire takes, not too much, and nail a wooden empty shelf on it, and connect the copper-clad wire. ”

Tu Xicai seemed to have seen this kind of opportunity in his mind, and he didn't feel that his forehead was bruised: "Straight thief, if we have such a sharp weapon early, we will not be able to lose to the pseudo-yuan in the positional battle." ”

Jingshan Taoist said: "It's just a pity that every bell needs a pair of wires, which consumes a lot of copper." ”

Lin Xi said: "It's all very good, in fact, there is no need to add a pair of copper wires every time."

The two wires form a loop, that is, one goes and the other returns.

If the second pair of bells and buttons are used, they can share a ground wire and control a live wire respectively. ”

As he spoke, Lin Xi took another drawing board and said as he painted:

"Let's assume that right now, the lookout is here above and here at the bottom.

There is one ground wire, which leads out from the negative pole of the battery.

Then from the positive pole of the battery, a live wire is drawn.

The telegraph button of the observatory is connected to the fire wire at one end, and a wire is connected to the positive lead of the electric bell leading to the inner compartment, and the negative electrode of the electric bell is connected to the ground wire.

The telegraph button in the inner cabin is also connected to the fire wire at one end, and at the other end, it is connected to a wire to connect to the positive pole of the electric bell of the observation deck, and the negative pole of the electric bell is connected to the ground wire.

In this way, a battery is used to supply energy with positive and negative or live and ground wires.

In addition, the ground wire is common, and there is only one control line. ”

Mi Sanmei said: "I'll count, so there is a public wire, a public fire wire, two signal wires, a total of four?!" ”

Lin Xi smiled and said, "Silly boy, this is enough to have only one battery."

If there is its own battery at the top and bottom, then the common live wire will not be necessary, and there will be one less.

But a wire or a battery, which one do you want to save? ”

Tu Xicai said: "Of course it's a battery." ”

Lin Xi said: "Yes, what if there are five groups of control lines, what about ten groups? Each group only needs one line, five groups are 2+5 equals seven, and ten groups should have 2+10 equals twelve. ”

The crowd was in an uproar.

Lin Xi continued: "You will take off the cold photoelectric panel in a while, and the two copper clips of the electric bell will be clamped with a copper wire respectively, and the copper clips that lead to the cold photoelectric panel, what will happen?" ”

Mu Sili said without hesitation: "Venerable Master, when the electric bell rings, the electric light panel will also glow?" ”

Lin Xi said: "You can try this and you'll know."

The connection between the electric bell and the electro-optical plate is called parallel connection;

The battery, the button, and the bell are called parallel. ”

You go and try it first, and after you have tried it, you will lay out the lookout post, the command module, the bilge, and the garrison. ”

After speaking, Lin Xi's consciousness gradually blurred again.

Song Qing said: "It would be better if it could directly transmit the sound. ”

Lin Xi said: "That's true, what I want to teach you again is the electric horn and the telephone microphone......

Hui Niang was originally a nurse, it was natural to see Lin Xi's tired face, and immediately gestured to Zhen Niang, Zhen Niang led someone to lift Lin Xi and entered the inner cabin again.

Hui Niang's eyes welled up with tears: "Ladies and gentlemen, let the Venerable Master rest for a while, and you should go and prepare first." ”

......

Tu Xicai immediately commanded everyone to do what Lin Xi had just ordered, this thing was so interesting and surprising that anyone who could intervene didn't need to be reminded at all.