Great Tang princess

Wax film recordings proved to be feasible, and further experiments were next.

Li Yuechen asked them to use the remaining ceramics, beef tendon glue and other things to try to see which one has the best sound quality.

"By the way, pay attention to controlling the experimental variables." Li Yuechen reminded.

Pei Bishu, who was stroking the case of the phonograph, raised his head: "May I ask Your Highness, what is this variable?"

"Uh... just don't just record vocals, go to Taichang Temple and find some musicians who play musical instruments to try."

Pei Bishu nodded: "Don't worry, Your Highness, I'll find out later."

"Well, it's better to hurry up, maybe, this will be the best gift for the saint this year." Li Yuechen grinned, turned and left the engineering institute.

When everyone heard it, they felt that it was true.

Every year, envoys and officials from all over the country will present gifts to the emperor. If this year can present a mature phonograph, then the Academy of Engineering will be a big face.

If the Academy of Engineering had a face, wouldn't it be the same as giving Your Highness a face.

So after Li Yuechen left, everyone worked hard and started the follow-up experiment.

Li Yuechen took the opportunity to go back to Jixian Hall and chatted with his mother about the problem here.

But there is no need to talk, with the hidden guards, nothing can be hidden from her, the emperor.

Sure enough, Wu Zetian had already taken the initiative to ask questions before he came to Jixian Temple to sit down and have a sip of tea.

"I heard that you have developed an artifact that can preserve words?"

"Ok!"

Li Yuechen raised his hand and took the tea from Shangguan Wan'er: "You can record the sound on the disk and play it repeatedly. If it is preserved well enough, people who will be thousands of years from now will be able to hear Aniang's voice."

"Oh? It's so amazing?"

Li Xian, who was at the side, became interested, sat up from behind the table, and walked over here while twirling the health ball.

Although he was suspected of avoiding work, Wu Zetian didn't say anything, just gave him a blank look.

Softly reprimanded: "Except for this handball, you really have no similarities with your grandpa!"

Nowadays, there are many people who play health balls, many ministers, including Di Renjie, play it.

Li Xian is the most diligent player in the game, and basically never leaves his hands with the ball on weekdays.

This pair of health balls was made for him by Li Yuechen with jade, one black and one white, like a Taiji diagram, very in line with the Taoist image... except that they are a little fatter.

Although he was much thinner than before, Li Xian is still a little fatter than normal people, just like the important supporting characters in many Xiuxian novels.

While spinning the health ball, Li Xian came over like a curious baby: "Quickly tell Brother Wei in detail."

"Well, for example, at this time, Auntie is teaching you a lesson. If you record Auntie's roar, you can reproduce it at any time in the future..." Li Yuechen said with a smile.

Although this explanation is miraculous, Li Xian still felt uncomfortable when he heard this.

Wu Zetian's face darkened instantly: "Why don't you choose something good? It seems like I can only teach people."

"Well, after all, it's probably the case for brother!" Li Yuechen said with a smile.

Shangguan Wan'er on the side added water to Li Xian and said, "Doesn't that mean that if the two of them have a conversation, it can be preserved? If this thing is used to gather information..."

"Well, the idea is very good, but it is currently impossible." Li Yuechen smiled, "It's too big."

But let alone, Shangguan Wan'er's conjecture will definitely come true in the future.

Therefore, the wisdom of the ancients really cannot be underestimated...but their insight can be underestimated.

I don't know if it's because she has been a secret guard for too long. When Shangguan Wan'er heard that the princess had invented a new gadget, the first thing she thought about was whether it could be used in intelligence.

It can be described as conscientious, a typical example of doing what you do and loving what you do.

Wu Zetian picked up the teacup: "In this case, can other voices be preserved?"

"Not to mention, the child thinks the same way."

Li Yuechen nodded: "If one day Auntie wants to listen to the piano or other musical instruments, but thinks there are too many people, you can ask them to record it in advance, play it repeatedly, and repeat the single song..."

Although I don't understand the meaning of the following words, the biggest feature of Chinese is that it takes the meaning out of the text, and after a little thought, it will be understood.

"Doesn't that mean that if Taichang Yinsheng saves the performance in advance, I can listen to it at any time?" Li Xian immediately discovered the blind spot.

"Yes, and more than that."

Li Yuechen nodded: "As long as the saved disc copying technology is solved, then anyone in the country can listen to it at any time."

In fact, this is what Li Yuechen wants to do in the future.

Now that the ship to the Americas has returned, it will definitely be able to solve part of the productivity in terms of crops in the future.

So the promotion of music can also enrich the spiritual entertainment of the people of the whole country.

Besides, you can make a lot of money selling gramophones, and you can make even more money selling records.

It may even lead to the birth of the profession of musician, why not do it?

You must know that music is a special way of communication, it can break the barriers of language and make different people have the same emotional resonance.

Therefore, the emergence of music can definitely enrich the spiritual life of the people across the country.

If you want to enrich the spiritual life of the people abroad, you can only rely on religion, but here you can only rely on various forms of entertainment.

There is no way, mainly because the land of China does not support idle gods, and the influence of religion cannot arise.

Wu Zetian put down the teacup: "Speaking of which, Zhang Changzong has a very high attainment in temperament, why not let him try it."

"I have no objection," Li Yuechen waved his hand, "After a while, when the second experiment is conducted, let him go."

"By the way, how about letting Zhang Yi Zhi go with him?" Wu Zetian asked back, "I think the courtiers are a little too free recently..."

As soon as these words came out, Li Yuechen immediately felt his mother's sinister intentions.

In fact, in recent years, because Li Yuechen had never had a real conflict with the emperor, many ministers gave up supporting her.

Di Renjie himself knew some truths, but he didn't dare to say it outright.

Coupled with the formation of various weapons, the army has always been invincible... Simply put, the imperial power is becoming more and more concentrated, and the ministers dare not jump around at will.

Now that Li Xian has been established as the crown prince, many ministers are now waiting for the empress to abdicate.

As soon as she abdicates, the world will return to Li's hands.

For all the above reasons, the ministers have been too honest recently.

But this was not what the emperor Wu Zetian wanted to see. The ministers from these aristocratic families were too honest, and she couldn't find an excuse to deal with them.

So recently I have been worrying about what method should be used to make them continue to dance, so that she can continue to clean up.

Over the years, Shangguan Wan'er's intelligence network and court officials have been used to clean up a lot, but the rest are not fools, how could they be easily fooled?

Those who can survive until now are basically staunch diehards, and it is not so easy to clean them up.

So Wu Zetian wanted to use another method to arouse the curiosity of some people, let them jump around a bit, so that he can continue to clean up.

Especially in the past few years, I can clearly feel that I am getting older and can't afford it, so I also think that it is time to pave the way for the next emperor.

Maybe it's just right to take advantage of this opportunity to stimulate those cautious old guys.

Realizing the sinister intentions of his mother, Li Yuechen had no intention of stopping him at all, and immediately nodded in agreement.

Shangguan Wan'er also raised her eyebrows, feeling that there was a good show to watch.

Only Li Xian was too lazy to think about the twists and turns in these things, and was still looking forward to trying the effect himself after the phonograph experiment was completed.

……

Time came to December in a blink of an eye. Once the winter solstice passed, the whole country fell into the atmosphere of the New Year.

Many children have already started discussing whether there will be more beautiful fireworks than last year on the Lantern Festival after the Chinese New Year.

Not only children, but also adults, and even many foreign envoys are looking forward to the arrival of the New Year.

In school, after Li Yuechen announced the winter vacation homework, he announced that the winter vacation was officially off.

The children cheered in unison, stretched their waists and sighed that they could finally go home and have fun again.

Nowadays, these children feel that they are out of place with this era.

Even when I go home on vacation, I still do many things by myself.

Make your own quilt, wash your socks, and even wash your hair.

Influenced by the army, the hair of these children is not very long now, and basically they all have hairstyles like wolf tails.

A few strands of hair hang down in front, and a small ponytail is tied in the back, looking very energetic.

The girls gave full play to their admiration for Li Yuechen, their aunt, all with high ponytails.

In fact, it looks fine on weekdays, but in school wearing a military uniform, everyone looks heroic.

After announcing the start of the winter vacation, the children swarmed back to pack their things.

Only Li Chongrun and Li Xianhui were still sitting there.

"What's the matter?" Li Yuechen came to the two of them, opened a chair and sat down, "Don't you want to take a vacation?"

Li Chongrun looked up and said, "Auntie, sister and I are a little confused."

"Why?"

"I'm going to graduate next year, I don't know where I'm going..." Li Chongrun said while propping his chin.

Li Xianhui on the side was also a little depressed: "Actually, I want to go to Qingdao, but Yizhou seems to be good... the northern border is also..."

"I want to go anywhere, right?" Li Yuechen asked with a smile, "Why don't you stay in Qianniuwei?"

However, Li Xianhui shook his head like a rattle after hearing this: "Even if there is a war now, the possibility of Qianniuwei being dispatched is not very high, and it is impossible to make contributions..."

"Well, actually, you don't have to think about this issue!" Li Yuechen said with a smile, "Where to go at that time is not up to you!"

In fact, they have known this for a long time. The first lesson of military school admission is that soldiers must learn to obey orders.

So where I will go after graduation is completely out of my hands.

As the royal family, the only preferential treatment is to refer to their own opinions, but it is only a reference.

As for the whereabouts of Li Chongrun and Li Xianhui, Li Yuechen had already made arrangements in his heart.

……

After the winter vacation, Li Yuechen only rested at home for a day, and immediately got busy again.

First of all, many businessmen frequently come to give gifts, the purpose is very simple, to ask questions about Princess Football Club.

Since the last time, the club has been formed, but no one can be found for a while.

So Li Yuechen asked them to go to villages outside the city or other places to find people with football talent.

After finally gathering people, they found that they played in a mess, not at all the level shown by several teams in the last game.

Li Yuechen said that this is not nonsense, what level can a group of people who have not received systematic training have?
So I gave them the training outline and asked them to go back to organize the training. At the same time, I told them that the training must ensure nutrition, so the food must also keep up...

In this way, from time to time, people came to give gifts and ask for advice, but Li Yuechen didn't find it annoying. Every time someone came, as long as she was at home, she would answer them.

Anyway, it's a free gift, whether you want it or not.

In all honesty, Li Yuechen is not a greedy person, but since people are willing to give it, there is no reason to extrapolate it, right?
……

On December [-]th, Li Yuechen received the news that the banknote engraving had been done, and hoped that the princess could go over and check it.

So she set off immediately and took a carriage to the Engineering Academy.

After entering the laboratory, all the craftsmen saluted, and Li Yuechen raised his hand to express his reluctance.

Then he patted Wang Gangdan on the shoulder: "Yes, not bad..."

"Your Highness praises me, let's take a look at the results first..." Wang Gangdan was a little embarrassed by the praise, and hurriedly dragged her to the test bench.

A stack of brand new currency-making paper has been placed on the table, and the ink and engraving next to it have also been done.

Li Yuechen nodded: "Okay, let's start."

Wang Gangdan nodded, picked up an engraving block himself, stuck black ink on it, and covered it on the cut paper.

When the engraving was removed, a black square frame appeared on the paper, and there was an oval-shaped blank space in the middle, on which was the black and white head portrait of Emperor Wu Zetian.

Although it is not as real as the photos, it has completely reproduced its appearance, which is a bit like the effect of a live-action sand painting.

Then he picked up another engraving plate and covered it again. When he picked it up again, there were already red patterns in the box, wrapping the oval-shaped head outside.

At the same time, bright red writing appeared in the upper right corner and on both sides of the portrait: One hundred yuan.

Finally, the third engraving plate was covered, and the black patterns and red patterns were interlaced and stitched together, and the Arabic numerals of one hundred yuan were also left.

Wang Gangdan picked up the coin and passed it over the flame of a candle lit next to it a few times.

After the ink is completely dry, the pre-ordered Daming Palace pattern, as well as numbers and patterns are printed on the back.

After drying it with flames back and forth, I touched it with my fingers, and then handed it over respectfully: "Your Highness, please have a look."

Li Yuechen took a look and nodded slightly. Although the quality is definitely not comparable to the currency of the future, it is already very remarkable to be able to make it like this in this era.

It feels unique to the touch and is the top craftsmanship of this era.

The ink does not smudge, can hang, and will not fade when rubbed hard.

Generally speaking, as long as no blisters are used, basically there will be no problems.

After shaking it back and forth, and folding it in half a few more times, after doing some simple tests, Li Yuechen nodded: "Engrave another batch of small seals, and put a different number on each banknote...As for this banknote, mass-produce it as soon as possible!"

Thank you [Silence swd] for rewarding 200 starting coins!