Great Tang princess

What Li Yuechen had to face was not only the problem of the train station, but also his own affairs.

After all, I still have to go back to Chang'an in the future. After I go back, it is definitely impossible to continue to squeeze in the palace with my elder brother's family, so I have to build a princess mansion there.

Fortunately, there is no shortage of money now, and things can be solved by buying a piece of land.

It's just that it will be rebuilt this time, and it should be better than it is now.

So during this period of time, Li Yuechen will draw a design drawing in the princess mansion when he is free.

It took almost half a year for such a painting, because Li Yuechen didn't have time to do this every day, so he could only use his spare time to paint.

In June, when the drawing was about to be completed, a message came from the Engineering Academy, but the design was completely rejected!
This news surprised Li Yuechen for a while, the microphone has been made!
After receiving the news, Li Yuechen rushed to the Engineering Academy immediately.

The microphone was the dean of the Academy of Engineering, Pei Bishu, who had been researching it all these years. Li Yuechen had no hope for it.

Who knew that this guy has been researching for ten years, and he really let him figure it out!
When Li Yuechen came to the engineering institute, Pei Bishu who came out to greet him had an excited expression on his face.

He is obviously an old man in his 60s, but his face looks like a little boy who got a toy he has been longing for.

"Your Highness, it's done! It's done!"

I'm so happy that I didn't salute Li Yuechen the first time I saw him, but kept talking and doing it.

But Li Yuechen didn't care about this, he jumped off his horse and waved his hands: "Okay, okay, take me to see it!"

She was actually a little excited, but not as exaggerated as Pei Bishu.

"Okay, Your Highness, come with me!"

Pei Bishu walked ahead and brought Li Yuechen to the laboratory.

At this time, the laboratory was full of people, and when they saw the princess coming in, they all saluted and greeted her.

"You are free!"

Li Yuechen raised his hand, and was attracted by the equipment on the table.

There is a wooden shelf on each side of the table. On the shelf, there are two wooden cylinders on the iron bracket, which are shaped like cups.

For Li Yuechen, one can see the purpose of them at a glance, one is placed on the ear, and the other is placed on the mouth for talking.

In the middle of the two devices, there is a coiled wire, which is hundreds of meters long.

Pei Bishu introduced very enthusiastically: "Your Highness, I have already tried it, and you can talk when you connect the phone."

"Well, let's try it!"

Li Yuechen asked his guard Yiliao to go outside with a device, and then tried to make a call.

"Hello, hello? Can you hear me?" After Li Yuechen finished speaking, he listened to the microphone, but there was no sound coming from it.

Just when he was in doubt, Pei Bishu reminded him: "Your Highness, please speak louder..."

"Oh..." Li Yuechen, who felt strange, agreed, raised his volume, and shouted again.

At this time, the microphone finally heard the reply from Yiluoru on the opposite side: "Return to Your Highness, I can hear you!"

When her voice rang through the receiver, Li Yuechen couldn't help opening her eyes wide, then raised her hand and gave Pei Bishu a thumbs up.

After talking to each other a few more words, they called her back.

After returning, Yi Xiaoru still looked excited, she never thought that apart from telegrams, this kind of long-distance voice conversation could be realized.

Li Yuechen asked Pei Bishu: "How about the data?"

"Returning to Your Highness, after my experiments, the longest distance for a call is only 2000 meters, and you can't hear clearly any further away..."

Such an answer made Li Yuechen somewhat disappointed. You must know that after the inventor of the world's first telephone improved it, the call distance was nearly [-] kilometers.

Of course, after all, the times are different, so I don't need to be annoyed by this.

But according to Pei Bishu, this thing can't be called a phone, it's just a wired walkie-talkie.

"In addition, you can only talk one-on-one, there is no way to talk at the same time..."

"This is easy to solve, as long as we get a relay station." Li Yuechen waved his hand and said that this is not a problem.

Although she doesn't specialize in this, the concept of transit will already be common sense in the future.

And the old-fashioned hand-cranked phones that appeared in many anti-Japanese war dramas are not the same.

When making a call, first tell the relay station where to pick me up, and then pick it up.

But speaking of which...is it possible to make that kind of hand-cranked telephone in this day and age?

The general principle is known, it seems to use magnets to generate electricity.

But the problem is that the internal structure seems to have components such as capacitors and resistors, but I really don't understand that thing at all.

In desperation, Li Yuechen called Pei Bishu and others to the office inside, and wrote down everything he knew.

"In the end, this is probably the effect. It's just that I don't know about some of the internal components. You still need to experiment slowly. It's probably a resistance-balancing component..."

The craftsmen who listened to her explanation were confused, let alone them, even the narrator Li Yuechen felt confused.

My physical knowledge is really not very good, I just know some common sense things.

Although I know what the capacitance and resistance look like, I can't draw them, because it is easy to form a fixed thinking.

Anyway, as long as the effect can be achieved, let them figure out what the specific appearance should be.

As for the current communicator, it has actually reached the standard that can be used.

Although the call distance is not too far, at least it can cover the entire palace.

In this way, as long as a relay station is set up in the imperial palace, the emperor can communicate with various departments in the imperial city.

It will be relatively simple to play things in the future, and at the same time, it can strengthen the emperor's supervision and management of his courtiers.

In the past, some people wanted to report something secretly and entered the palace. There were so many people watching that they would always be seen.

But it will be different in the future. With the existence of the telephone, it will be easier for the courtiers to suspect each other. For the emperor, it is a good thing.

"However, this form should be changed. You see, wouldn't it be more convenient to put the handset and the microphone together to make it look like this?" Li Yuechen said while drawing the shape of the phone handle.

"That's right!" Pei Gui clapped his hands fiercely, "In this way, you can talk with one hand. Your Highness is really quick thinking..."

"At the same time, add a switch to the phone itself to notify the repeater at any time. After connecting, install a simple bell on the phone. When the bell shakes after power on, you will know that someone is asking for a call, right?" Li Yuechen diverged a little follow their thinking.

Everyone was also taking notes while listening, for fear of missing key information.

After all, Princess Taiping has invented so many things since she was a child, it is always good to listen to her words.

He stayed in the engineering institute for a whole day, and when he returned, Li Yuechen had basically finished talking to them about the future calls.

At least I told them everything I know. As for what it will be like in the end, I can only leave it to time to develop slowly.

……

Three months later, it was the end of September.

After the adjustment, the telephone was officially installed inside the palace. After the line planning was completed, the construction officially started.

Of course, the process is definitely not so smooth.

At the beginning, when I heard that construction was going to start in the palace, Li Xian didn't agree, so Li Yuechen had to explain clearly.

After all, it is the palace, so many people come in at once, it is impossible without a valid reason.

However, when he heard that it was necessary to install a device that could communicate with various departments at any time, he immediately took the queen and concubines to live in Shangyang Palace temporarily to make room for them.

As for the ministers, don't talk about it, especially when they heard that this thing can communicate with various departments at any time, many ministers were already in a cold sweat.

In fact, the courtiers don't like the emperor knowing too much about the outside world, because it's not easy to fool around.

Although it is hard enough to fool now, it will be even more difficult to fool in the future with this terrifying machine.

What's more, these people now know the horror of technology, don't look at the fact that they can just talk to cabinet officials at any time.

What about the future?Who can guarantee that the officials from Chang'an will be able to call the emperor with one call in the future?

Or to put it a little farther away, if officials far away at the border can call to report the situation at any time, then things will be very bad!
However, Li Xian didn't care about that, and just showed a self-willed look. What you said is correct, but I won't listen!

This kind of hob meat attitude directly confused the Yushitai gang, and they didn't know how to stop the emperor.

But how can the power of the aristocratic family compare with the imperial power now?In desperation, he could only accept it obediently, and watched the phone start to be installed.

Regarding the laying of wires, the Engineering Academy discussed with Li Yuechen whether it would be better to bury them underground or hang them in the air.

In fact, Li Yuechen tended to hang the wires in the air, but the problem was that there was too little rubber at this time, which was a precious material, and waterproofing had to be considered when it was hung in the air.

So in the end, I chose to bury it underground, and the wire sheath was woven with hemp. This kind of wire sheath will still exist in the future.

Then pass through the ceramic pipe, put it in a cement tank and bury it in the ground. It should be the best solution.

All the personnel who officially started construction are engineers from Qianniuwei, so there is no need to worry about confidentiality.

Li Xian originally planned to write a letter to share this matter with his mother, but was stopped by Li Yuechen, saying that he would surprise her when she came back after she had had enough fun outside.

So in order to talk to my mother at that time, a telephone was also installed in Shangyang Palace.

As for the choice of the operator at that time, it is good to choose from among the soldiers who have been discharged due to injuries.

It can be regarded as a job arrangement after retiring from the army, but don't underestimate this little operator, that is also working for the royal family, and has a staff!
Most people would not envy this kind of job. Besides, although there is no so-called five social insurance and one housing fund in this era, the salary is high.

Being able to have this kind of career will be considered a piece of cake in the dating industry in the future.

When it comes to blind dates, I have to mention that in today's Datang, the presence of official media is getting lower and lower.

The official media was established by Emperor Taizong to increase the population, to encourage people to get married and have more children.

But now because everyone is living a better life, they start dating, getting married, and thinking about having children without encouragement.

So now the presence of official media is gradually decreasing.

But Li Yuechen does not intend to completely abolish it, because the matchmakers of the state agencies can be relatively responsible to prevent fraudulent marriages and other things from happening.

So in the future, it is better for the official media to transfer to the Ministry of Household Affairs. When the country develops in the future, if you feel that it is troublesome to find a partner, you can go to the civil affairs department to apply for the state to send you a partner.

At least the people recommended by the country are well-informed. I dare not say that I will definitely not encounter liars, but at least the chances will be greatly reduced.

Li Yuechen's idea is to make Datang a beacon for the world.

This is definitely not only enough to rely on strong military strength, but also requires the development and cooperation of many aspects.

Although Li Yuechen didn't believe in the legend of Utopia in his heart, at least he could get close to it infinitely.

Although Li Xian felt a little puzzled by such a plan, he still agreed and handed it over to Princess Xuancheng, Minister of the Household Department, to handle it.

So the official media was merged under the household department, but Princess Xuancheng still raised her own doubts about it.

"What about the people outside the capital city?"

"Sister, don't worry. When there are more cars in the future, the information transmission will be more convenient. These materials will be shared across the country. This is the so-called 'networking'. It's a pity that I won't be able to see it..." Li Yuechen replied with a smile .

……

The laying speed of the telephone lines was relatively fast, and by the end of the year, it had all been completed.

On October 23, after Li Xian moved back to Ziwei Palace, he went straight to Jixian Palace.

Looking at the telephone made of wood and copper on the desk, I felt a tickle in my heart.

At the same time, a dragon is engraved on the phone handle, which can also play a certain anti-slip effect.

Li Xian, Wei Lian'er and the three concubines all walked around the phone and observed it carefully.

Then Li Xian followed the instruction, grabbed the microphone, and turned it on the side handle a few times.

Of course, this is not the kind of phone in the film and television drama. The function of this crank is only to remind the repeater that a call has been received.

As for the electricity, it has been connected to the generator, and there is electricity at any time.

The next moment, a deep male voice came from the receiver: "What orders does Your Majesty have?"

"Cough!" Li Xian cleared his throat, "That... give me the... Ministry of War!"

"Yes!"

After a brief silence, a female voice changed into the receiver: "Military Department Office!"

"Hmm! It's Zhen! Tell... the prince to come to the palace immediately!"

"His Majesty?"

The female voice on the opposite side was obviously taken aback. Although she was from the Ministry of War, not everyone was qualified to talk to the emperor, and naturally she had never heard the emperor's voice.

But now the phone is only available inside the palace, so no one would dare to impersonate it.

So in a panic, he quickly agreed: "Yes! Then, Your Majesty, I will hang up here first, and immediately inform His Royal Highness..."

"En!" Li Xian agreed, and then put down the phone when he heard the phone was silent. (end of this chapter)