Great Tang princess

Chapter 855 Battery
The aunt and nephew chatted and came to the Engineering Academy, and Pei Bishu came out to receive them.

"I have met His Royal Highness, the eldest princess..."

"Excuse me, I heard that the light bulb has been made?" Li Yuechen asked.

Speaking of this, Pei Bishu, who was already gray-haired, explained excitedly like a child: "Your Highness is really a god. I have waited for these years to make that tungsten into filaments, and according to His Highness's method, we will make glass balls The interior is vacuumed. After the electricity is turned on, it really lights up!"

"It seems that the experiment went well."

"This... I am ashamed! It didn't go well at first, and even exploded a few times, but I tried to make a transformer according to His Highness's theory, and finally reached the constant light state..."

Listening to Pei Bishu's explanation, he could also know that the experiment process was not so smooth.

Otherwise, it would not have taken so many years to settle this matter.

Several people walked and chatted, and came to the laboratory.

Looking at the row of light bulbs on the table, Pei Bieshu immediately ordered someone to get ready, and then pulled up all the curtains in the laboratory.

When everything was ready, Pei Bishu flipped the switch, and a dozen bulbs connected to the wires lit up instantly.

Bright yellow light filled most of the laboratory space, brightening up the dark space.

The craftsmen around him all looked excited, and Li Chongrun also opened his eyes wide.

Li Yuechen took a closer look, and felt that the light bulb should have a brightness of about forty watts. To her, it was a bit like the kind of lamp used in the countryside when she was a child.

But for people of this era, seeing this level of light in the dark can already be called dazzling.

"Clap clap clap..."

Li Yuechen raised his hands and clapped his hands, expressing his affirmation to this group of craftsmen.

Then he turned his head and touched Li Chongrun next to him with his arm: "What about the reward?"

Hearing her asking himself, Li Chongrun thought for a while: "This project team should give a collective second-class merit!"

Li Yuechen nodded slightly: "Not bad!"

Pei Pishu smiled and saluted: "Thank you, Your Royal Highness, Your Highness, Your Royal Highness!"

For craftsmen, it is another good reward.

Although it is said that the current Datang pays attention to spiritual rewards, it does not mean that there are no material rewards.

Collective second-class merit means that the project team can receive a huge certificate, on which the names of the project team members will be written.

At the same time, everyone in the project team can receive a reward of 30 yuan.

Don't underestimate the 30 yuan, which is not a small sum of money at the current price.

Li Chongrun turned his head: "Auntie, nephew has an idea."

"Tell me and see if it's the same as what I think." Li Yuechen replied with a smile.

……

A few days later, the people of Chang'an suddenly discovered that the construction of Daming Palace and the imperial city at the end of Zhuque Street had started.

It's not a big project, it's just a row of incomprehensible gadgets installed on the outermost city wall.

It seems to be a transparent glass ball, and if you look closely, you can see that there are metal wires inside.

One is installed almost every two feet, and there is a disc on the transparent glass ball, which seems to be to block the rain and snow.

This is Li Chongrun's idea, and Li Yuechen thought of going together.

To put it simply, it is a street lamp, but at present, this street lamp is first installed on the outermost part of the Daming Palace and the Imperial City.

First, it can illuminate the way for officials who go to court in the morning. Second, with this light bulb, it is much stronger than a torch.

Because the light bulb is installed on the city wall, it can clearly illuminate the underside of the city wall after it is lit, and at the same time, it can prevent people below from seeing the city wall.

Li Chongrun also wanted to install the outer walls of Chang'an City, but Li Yuechen vetoed it.

Because with the expansion of the city's scale, the city wall will have to be demolished sooner or later, and it is meaningless to install it.

It is better to consider the possibility of installing street lights when the technology becomes more mature in the future.

These days Li Xian was very curious about what their aunt and nephew were up to, but Li Chongrun said to keep it secret for the time being and to surprise his father when the time came.

So Li Xian didn't ask any more questions, just waited to see the final result.

This project was not difficult to do, and with the full efforts of the engineer battalion, it was all completed by the end of April.

On the evening of April 28, after dinner, Li Chongrun brought his parents to the city wall.

After coming over, I saw Li Yuechen, Li Xian, Li Dan and other members of the royal family were all there.

Li Xian went up to the city wall: "It seems that this is the surprise you mentioned?"

"Well, are parents ready?" Li Chongrun asked.

"Hurry up!" Li Xian waved his hands, looking a little impatient.

So Li Chongrun waved to the inner guard soldiers next to him: "Turn on the light!"

"Yes!"

The soldier promised, picked up the crossbow, put on a ringing arrow, and fired it into the sky.

"call out--"

The sharp whistle pierced the sky, and at the same time, Li Xian felt a light suddenly lit up outside the city wall, as if the outside of the city wall was on fire.

He subconsciously walked over and looked out.

I saw that the top of the city wall was illuminated by this light, and what emitted this light was naturally those things installed during this period.

Wei Lianer pointed in the direction of Tai Chi Palace with a look of surprise: "Your Majesty, look!"

Li Xian raised his head and saw dots around the imperial city of Tai Chi Palace, as if they were illuminated by orderly stars.

"This is……"

"Grandpa, this thing is called a light bulb, and it glows with electricity. My aunt said, in the future, I will not be afraid of the dark anymore!" Li Chongrun said next to him.

Hearing his son's explanation, Li Xian couldn't help nodding: "Good baby, good baby!"

Then he asked: "Can this light bulb be installed inside the palace?"

"Brother, don't worry, there's no problem, it will be installed after a while!" Li Yuechen replied with a nod and a smile.

Now that it has been made, it must be used by the imperial palace first, and of course the princess mansion cannot be forgotten.

In the future, there will be no need to light candles in the palace, which will make it much more convenient for everyone.

Then the palace and the princess mansion began intense projects.

……

Since the exterior walls of Daming Palace and Taiji Palace are equipped with light bulbs, many people have been surprised.

In addition, it is lit every night, so many people go out to watch it at night out of curiosity.

Anyway, there is no curfew now, and some people even try to set up stalls on this street.

But this is not the Lantern Festival after all, and the vendors who set up the stalls were quickly driven away by the inner guards in charge of the palace's security.

At the same time, those foreigners are also curious about what the hell this is.

Many foreign envoys went to the palace to see the emperor, asking if this thing was for sale and how to use it.

However, many foreigners still cannot understand electricity, and it is useless to explain it to them.

Besides, Datang is still exploring in this aspect, so after asking Li Yuechen's opinion, Li Xian said that this is not for sale for the time being.

This group of curious foreign envoys could only grit their teeth and endure their curiosity, and wrote a letter to report the scene here, saying that Datang had developed a new gadget again.

I don't know what it can be used for now, but at least it can perfectly replace candles and kerosene lamps and become a new type of lighting tool.

But the pity is that at present, this thing is only for personal use and not for sale.

At the same time, a group of ministers began to ask each other what it was.

Shangguan Wan'er, who has become the chief assistant of the cabinet, is the first target of the ministers.

After all, it's not a secret that she and Princess Taiping did something, and one can guess that it must have been caused by Princess Taiping again.

So many people started to give gifts to Shangguan Wan'er and asked her what it was.

After Shangguan Wan'er asked Li Yuechen, she told them everything she could tell them.

For example, this thing is called a light bulb, it is used for lighting, etc...

Many ministers asked how to install this thing. Shangguan Wan'er said that for a sum of money, she could pull a wire into the house and then install it.

Of course, you will have to pay electricity bills in the future.

Chang'an uses hydroelectric power generation. Since the equipment is not yet mature, the electricity bill is very expensive. Let them think about it for themselves.

Since the electric meter has not yet been made, the charge is also very simple. The electricity charge of [-] yuan per month depends on whether you want it or not.

Many ministers with rich families said that this is not money at all, put it on!

Since someone is willing to spend money, then Li Yuechen doesn't say anything, just pretend for them!
Anyway, you can still earn a fortune, so why not do it?

So the wealthy people in Chang'an became the first batch of people to enjoy the convenience brought by the light bulb.

The installation of light bulbs is not only here, but also the army.

So intense construction began in the Qianniuwei barracks, and the engineer battalion was too busy to touch the ground.

At the same time, Li Chongrun also asked other military regions to send people to study, and he was going to install it in all military regions.

While busy here, the envoys from the Fushi Kingdom begged to see the emperor again, saying that they also wanted to buy an airship.

After Li Xian asked Li Yuechen, he told them that if you want to buy it, you can pay a deposit first, and second, it will take half a year to deliver the goods, let's see if you can stand it.

The envoys of the Fusu Kingdom had no choice but to say that they would try their best to withstand it, and then they paid a deposit and asked them to make it quickly.

Although it feels like an eagle to do so, there is no reason not to do business, and the Great Food Kingdom can't say anything.

Anyway, there is still half a year left for delivery, it depends on whether they can withstand it within half a year.

If they can withstand it, they still have the power to fight. However, in this era without air defense capabilities, even if both sides have airships, it is really not very easy to fight just for defending the city.

……

The time soon came to June, and the weather was extremely hot and unbearable.

The school was on summer vacation, and Li Yuechen also stayed at home all day and didn't want to go out. When he was free, he jumped into the pond for a swim.

On the third day of June, Li Yuechen was sitting on a rocking chair in the pavilion, thinking about things in the Northeast while perfecting his book.

In the past few years, the country has become more and more stable, and after Li Linghui went to the Northeast Military Region, he gradually began to push the borders outward.

Considering the cold winter in Northeast China, the plan can only be implemented in summer.

At present, the plan is going smoothly, and there are no obstacles.

Although there was a lot of friction on weekdays, when foreigners saw that Tang Jun was now playing for real, they basically either ran out or raised their hands and surrendered.

And those low-level foreigners who were overwhelmed by the wool trade also welcomed Tang Jun's arrival.

Everything is going well, there shouldn't be any major wars in the next few decades... Li Yuechen thought.

At this time, Xiaodong came over: "Your Highness, the Engineering Institute sent someone to pass the message that the battery has been made, can Your Highness go and have a look?"

"What? It really worked out? Go now! Call the Ministry of War and ask the prince to come too!" Li Yuechen stood up while speaking.

Xiaodong agreed, and then ran to call the Ministry of War to inform the prince.

Li Yuechen was surprised, this battery, she just put forward a concept, there is no theory at all.

Unexpectedly, the talented people from the Academy of Engineering actually came up with it!

Originally, she thought that she would not be able to see it in her life. After all, she had really forgotten all about this aspect, leaving nothing behind!
While thinking about it, she got into the car, Yiluoru started the car and drove towards the engineering institute.

On the way, Li Yuechen couldn't help but wonder how well the batteries made by the engineering academy would perform.

But in any case, as long as it is done, it will be a great thing!

You know, I didn't help at all, and I can make it with just a concept, which is amazing!

The car drove slowly on the street, and began to accelerate gradually after reaching the deserted road behind the Xuanwu Gate.

At this time, I heard a roar of twisting the accelerator, and when I turned my head, I saw more than a dozen motorcycles gradually approaching.

It is easy to see that the one in the middle is definitely Prince Li Chongrun.

Then Li Chongrun saw the car next to him and raised his hand to say hello.

Li Yuechen smiled slightly, and couldn't help thinking in his heart, after all, young people like motorcycles more than cars.

Looking at Li Chongrun who was wearing a helmet in the middle, Li Yuechen felt that he should be taught to be more careful when riding a motorcycle.

……

After a while, the convoy arrived at the Engineering Academy, and Pei Bishu came out to greet him: "I've seen..."

"No, take me to see the battery!" Li Yuechen waved his hand.

Li Chongrun also took off his helmet and threw it to Secretary An Lan, and walked in with Li Yuechen.

After arriving at the laboratory, the first thing Li Yuechen saw were several glass bottles lined up side by side.

Pei Bishu explained: "Your Highness, after these years of experiments, I finally discovered that putting the lead plate into a glass bottle, and then pouring sulfuric acid into the bottle, can store electricity..."

Listening to his explanation, Li Yuechen couldn't help but nodded repeatedly, gave a thumbs up to the craftsmen of the project team next to him, and secretly said awesome in his heart.

This group of people really tried little by little without knowing anything, and it took less than ten years to make a finished product, which is really amazing!

But if you think about it carefully, maybe it is also destined.

These craftsmen don't know many materials. Lead and acid were used by the engineering institute before. Perhaps it is because of this that they can successfully make batteries in such a short time...

Thinking of this, Li Yuechen couldn't help but smile. It seems that history is indeed because he has gone on a completely different path...

(End of this chapter)