Great Tang princess

Chapter 661
After careful consideration, Li Yuechen still gave up the idea of ​​getting medical insurance in this era.

Because the premise of this kind of thing is that the citizens need to have a relatively stable income, and the overall economic level of the country must meet certain requirements.

Today is a purely agricultural society. Most people make a living by farming. It is not easy to have enough to eat. How can there be spare money for medical insurance?

However, it can be used as an alternative plan in the future, and it will be fine to launch it when the time is right.

Afterwards, Li Yuechen's life returned to normal, mainly teaching children at school.

After March, the temperature began to gradually warm up, and the whole country began to wake up.

But besides attending classes, Li Yuechen has another thing to solve.

Inside Jixian Hall, Wu Zetian held a teacup with a puzzled expression on his face.

"Fire Department? What is this?"

Li Yuechen explained: "To put it simply, it is a department responsible for fire fighting and other disasters. It adopts militarized management, but it does not belong to the front-line army. It is considered as a public security..."

"and many more!"

Wu Zetian waved his hand: "According to this meaning, it is similar to the structure of off-duty soldiers? Although the imperial court is rich now, but to support so many off-duty people..."

Speaking of this, her expression was a little dignified.

Although it is true that food production has increased a lot in the past few years and has become more stable, the limitations of the times made her feel that it is still a bit dangerous to feed so many off-production people.

Li Yuechen shook his head lightly: "Actually, the firefighters don't need to recruit additional people. Now among the Qianniuwei, some soldiers who are a little older or have been injured can retire from active duty and arrange to join the fire department..."

It has been more than ten years since Li Yuechen began to reform the army and the first batch of Qianniuwei.

Today's Qianniuwei has many veterans who are over [-] years old and nearly [-] years old.

Compared with young people in their 20s, these people's physical fitness and physical fitness have begun to decline, and they are no longer suitable to continue to stay in the front-line combat troops.

Coupled with the veterans who have been injured in wars and training over the years, they can be mobilized to form the first batch of firefighters to deal with various natural disasters such as fires.

"A group of people can be mobilized, but the army still needs to recruit new people?"

"That's another matter." Li Yuechen smiled, "Don't worry, Aunt."

Li Yuechen has carefully calculated that at present, the country's grain production is enough to feed an army of this size, and there is even a lot of surplus.

So there is no need to worry about the next issue of recruiting recruits. Besides, it is not only food that is gradually increasing, but also cultivated land.

Now that the troops have been stationed in Yizhou, the border has stabilized a lot, so more arable land is also being developed.

Not to mention that with future development, sooner or later, Hunan and Hubei will send people to open up wasteland.

Having said all this, Wu Zetian nodded: "If that's the case, then it's good for you to look at."

Wu Zetian has become increasingly unable to understand the development of national policies.

But it doesn't matter, since my daughter said it was necessary, then just listen to her.

……

So Li Yuechen went to the Ministry of War and asked them to select a group of veterans who were ready to retire and transfer to the fire department.

In the beginning, Li Yuechen also planned to be under the Ministry of Military Affairs of the fire department, and then consider transferring to the Ministry of Punishment after other systems are perfected.

After the order was issued, the Ministry of War immediately began to execute it.

And Li Yuechen was sitting in the office, chatting with his brother Li Dan for a while.

Seeing this younger sister, Li Dan couldn't help feeling a wave of resentment.

"Yuechen, now that you are back, why do you still handle affairs here for my brother every day? You are the minister of the Ministry of War, right?"

"I don't want my brother to be tired, but I am too busy with other things, so I can only continue to wrong my brother for a while." Li Yuechen replied with an aggrieved face.

Li Dan couldn't help rolling his eyes at these words: "How long is this 'a while'?"

"This... I can't say well for the time being."

In fact, it was after the next generation of royal children grew up... Of course, Li Yuechen didn't say this, otherwise, I guess my brother would have to pick someone up on the spot.

So this kind of thing must boil the frog in warm water, and take it slowly.

After chatting with my brother for a while, the siblings had a meal together at noon, and Li Yuechen went to the Engineering Institute in the afternoon.

Pei Bishu received her into the laboratory: "Your Highness, almost all of these oil lamps and lighters can be produced by machines now, and can produce [-] per day."

"Well... it's almost reached the limit..." Li Yuechen nodded slightly.

"Your Highness, is it possible to set up a separate factory outside the city like a paper mill..."

Before he finished speaking, Li Yuechen stopped him by shaking his head.

His idea is good, but if he really wants to do that and double the output again, it will be tantamount to directly entering industrialization.

But now, it is not yet time to enter industrialization.

The rash industrialization of the feudal system is extremely easy to trigger revolutions within the regime.

Therefore, Li Yuechen had to make preparations for possible occurrences before considering this issue.

Moreover, rashly building factories means that more workers are needed.

The slaves and captives that Li Yuechen could use now had their own uses, and at that time they could only recruit people.

But if people are recruited, there will be fewer people farming. These series of problems are very troublesome, so you must think about the solution to this problem in advance before you can consider the problem of building a factory.

In fact, the output of [-] per day is quite good now, so there is no need to worry about slow sales. At least during this period of time, Li Yuechen's funds have increased a lot.

"I came here today to see if I can make a water gun."

"Spray gun?" Pei Bieshu was taken aback, "A weapon that can spray water?"

Li Yuechen nodded: "A few days ago, there was a fire in the city, did you hear about it?"

"Naturally! Your Highness is really a god-man, to cut open the belly can still make people immortal..."

"Okay, okay, digressing." Li Yuechen waved his hand, "Go and call the academicians, let's talk about the water spray gun today."

"Yes!" Pei Bishu agreed, and turned to call the craftsmen.

This was not the first time, almost every time Li Yuechen wanted to make something new, he would call all the craftsmen and sit together to brainstorm.

Anyway, oil lamps and lighters are basically made by machines nowadays, and the rest of the process only needs a few apprentices to watch over them. Craftsmen still have a lot of free time.

So the craftsmen ran over and sat together, facing the princess, planning to see what they wanted to do next.

After a few apprentices came over and poured a cup of tea for everyone, Li Yuechen began to talk about his requirements.

"A few days ago, there was a fire in the city. You must have heard about it. I want to make a water spray gun, which can be used to put out the fire..."

While making gestures, Li Yuechen explained his thoughts, and then let the craftsmen speak freely and express their opinions.

A craftsman asked, "I don't know what your Highness wants?"

"At the very least, the water should be sprayed several feet away." Li Yuechen replied.

The craftsman thought for a while: "Then it is feasible to make an upward spout? Similar to bows and arrows, projectiles will go farther than flat shots..."

"But the key is how to hold the water, right?" The colleague next to him said, "Can you make a water tank? It's easier to move with tires on the bottom like a carriage."

The craftsmen started brainstorming, and Li Yuechen also put forward some opinions from time to time, and the ancient version of the fire truck gradually took shape in the discussions among everyone.

The first thing is to make a wooden box, and install tires and a steering system underneath to ensure that water can be transported to where it is needed at any time.

It is essentially a four-wheeled carriage, but the box at the back can hold hundreds of catties of water.

On the nozzle side, Pei Bishu gave his opinion.

"Can the syringe made by His Highness use the same principle?"

When smallpox broke out before, a syringe was made of glass, and Pei Bishu felt that it should be possible to spray water out in this way.

The young craftsman on the side shook his head: "But in this way, we need to make a taller putter. The key is a few hundred catties of water, and we want to push it out with manpower... I am afraid that no one has such a push rod except Your Highness." Wait for the power."

"It's also..."

Pei Bishu simply imagined in his mind that a syringe that can hold hundreds of catties of water must not be able to be pushed by one person.

At this time, the young craftsman said again: "Your Highness once said that air can also occupy space, so can we make a structure similar to a bellows and use air to spray water out?"

Li Yuechen's eyes lit up, what a way!Isn't this the air pressure?

"That being the case, let's make a real thing and come out to see."

So the craftsmen immediately gathered together and began to draw pictures, discussing the upper and lower structures and materials.

Li Yuechen watched from the sidelines, raising his own opinions from time to time.

Of course, her opinion was good, but it all ended up being simplified.

Among other things, the rubber tube is a big problem, and the only solution is to make an upward nozzle on the box that cannot be moved at an angle, just like a teapot.

But in order to compensate for the steering problem, the box body can be rotated at will, which can be regarded as a compromise made under the limitations of the times.

After drawing the design drawings, the craftsmen said that this thing is not difficult to make, and the finished product should be visible in a few days.

Of course, the box is really not difficult, the key is whether the water inside can be sprayed out is a big problem.

This can only be seen after it is made. Anyway, the experimental product does not have to be expected to be made the first time.

Seeing that they were about to get busy, Li Yuechen was about to leave, but was stopped by Pei Bishu.

"Your Highness, there is something unclear about this subordinate, and I hope Your Highness can clarify."

"Huh? What's the matter?"

Pei Bishu explained: "Your Highness invented the telegraph, which can quickly communicate between two places, but it is still a bit troublesome to decipher the code. Can you go one step further and directly transmit the sound for thousands of miles?"

As soon as this remark came out, the other craftsmen beside him also stopped and turned their heads to look over.

In fact, this is also a question they are curious about. Now that the telegraph project is about to be completed, why can't they communicate directly and have to decipher the code to communicate?
"You said the phone?"

"Phone?" Pei Bie was puzzled.

Li Yuechen waved his hand: "Forget it, it's nothing. It's just what you said, I don't know what to do."

Hearing this sentence, Pei Bishu's expression was a little disappointed. If he could have a device that could talk to him at any time from a distance, it would be a great achievement. Maybe it would be no problem to be promoted to a senior colonel.

"However..." Li Yuechen's voice sounded again, "Although I can't make it, but it can give you some inspiration, and you can study it in your spare time in the future."

Pei Bishu's expression became anticipation again. He usually has a lot of free time. If he gets a reminder from the princess, he might be able to research it one day.

"Come here! Go get two bamboo tubes, a longer suture, and two pieces of hard paper..." Li Yuechen waved his hand.

"Yes!"

It wasn't hard to find anything, and soon two apprentices brought over what Li Yuechen needed.

Then Li Yuechen started to operate it, it was very simple, it was the paper cup phone he played with when he was a child.

This should give them some inspiration for long-distance calls. As for whether they can achieve any results in the end, it depends on time and luck.

After a while, the two receivers were finished, Li Yuechen asked Pei Bishu to hold one, and then he stepped back slowly to straighten the two feet long line.

Then let him put the receiver on his ear, and approached the receiver himself: "How is it? Can you hear me clearly?"

"God!"

Pei Bishu's eyes lit up, he raised his head and shouted, "I can hear His Highness!"

Li Yuechen smiled and handed the bamboo tube in his hand to the craftsman next to him: "You can try it later."

They couldn't wait a long time ago, so they immediately took over and tried one by one.

After experiencing it for themselves, they were all surprised and gathered around Li Yuechen to ask the reason behind it.

Li Yuechen smiled and explained: "Sound is essentially a kind of vibration. Talking close to the bamboo tube, the vibration of the sound will be transmitted to the opposite side through this line, so the person on the other side can also hear it."

"Then, Your Highness, can you make a long enough line to communicate with Chang'an or even further away?" The craftsman on the side raised his own doubts.

"Impossible!" Li Yuechen waved his hand, "The vibration will gradually attenuate with the distance... which means it will slowly disappear. In fact, this method can transmit the sound as far as three or four feet away. I can't hear you anymore."

Such an answer made the craftsman feel disappointed, as if he finally caught his hope and lost it.

However, Pei Bishu was stunned: "Then... if we add a device that can amplify this vibration to this line, will the sound be transmitted farther?"

"That's a good idea. You can study it yourself in the future." Li Yuechen nodded with a smile.

She didn't say too much. After all, she didn't know much about this stuff, so she could only let them study it slowly.

Now that the generator is about to be put into use, maybe someone will be able to study how to use the phone in the future.

It's just that she doesn't have much hope for this. The principle of the phone is really complicated. With the current technical level, the possibility of researching it is almost zero.

But she didn't want to hit them either. Anyway, research slowly, and with the advancement of other technologies, there will always be ones.

(End of this chapter)