Emperor Xiaoyao of Tang Dynasty

Chapter 190 Glass ballast spectacle lenses are more expensive than gold
It will be a year since he came to the Tang Dynasty, and Jin Yu obviously doesn't know enough about this strange dynasty.Take Chang'an as an example, he doesn't know where to grind the water jade of the specified shape.In the end, this problem still troubled Cheng Huaimo.

"Shuiyu? Who do you want to make jewelry for?" This was Cheng Huaimo's first reaction, with a wretched look on his face, Jin Yu wanted to slap him twice.

"For Huaiyu, why don't I give you two too?" Jin Yu cooperated with Cheng Huaimo, with the same malicious expression on his face.

Cheng Huaimo swallowed a piece of ice like the twelfth lunar month, shivered, quickly jumped aside, covered the chrysanthemum with his hands, and looked at this strange man whom he called "Big Brother" in surprise. "Little brother is not good at this, big brother will spare this little brother! My little brother wishes my eldest brother a deep love with Huaiyu and his wife. Let the case be equal``````"

"There is also unlimited love, right?" Jin Yu snorted coldly, grabbed Cheng Huaimo's head and talked about two brains, this baby didn't know what to eat to grow up, his bones were hard, and Jin Yu's hands hurt so much.

"Where is so much nonsense? Come on, where is it!" Jin Yu shook his hands, with a bad attitude, but it was a little worse than Qi Cheng Yaojin.

"Little brother, don't you want to cooperate with big brother``````" Cheng Huaimo saw that Jin Yu was inclined to do something again, so he quickly replied: "There is Zhenbao Pavilion!"

"What are you still doing in a daze? Take me with you!" Jin Yu glared at Cheng Huaimo, as if he had credited Cheng Huaimo for his extra trips.In fact, it was Jin Yu’s negligence. Zhenbao Pavilion originally sold rare metals and shiny glass pieces that could attract women.

Cheng Huaimo, like an angry little daughter-in-law, led Jin Yu to Zhenbao Pavilion helplessly.It is said that the craftsmen of Zhenbao Pavilion are the foundation of making money for the family. Only good craftsmanship can attract more repeat customers. Therefore, the management of Zhenbao Pavilion's craftsmen is extremely strict. Jinyu may not be able to meet people by himself. "What do you want to do, brother?"

"Lens, you don't understand even if I talk about it. It's better for you to learn a little while I tell the craftsman." Princess Changle is such a smart loli, a convex lens made of ice consumes Jinyu's tongue for a long time , Jin Yu doesn't expect Cheng Huaimo's understanding of this kind of weirdness to be better than Princess Changle's. It's better to go to Zhenbao Pavilion to keep warm in cold weather.

Cheng Huaimo nodded and stopped talking, his mouth was also cold.

The young master came, and the shopkeeper of Zhenbao Pavilion politely invited the two to the tea room.

"Is Jia Fengfeng here?" Cheng Huaimo took off his hat and gloves after entering the room, wiped his face with both hands, and asked the shopkeeper of Zhenbao Pavilion.

"Returning to the young master, Jia Gongfeng is busy at the back. A few days ago, a client ordered two pieces of jewelry, and the work was completed today." The shopkeeper of Zhenbao Pavilion replied respectfully.

"Let's go and have a look." Jin Yu stood up, put his hat and gloves under his arm, and signaled the shopkeeper of Zhenbao Pavilion to lead the way.

"This``````" The shopkeeper of Zhenbao Pavilion hesitated, isn't this against the rules?The craftsmanship these days emphasizes "passing on the inside and not on the outside, and passing on to the sons and not to the daughters", and the defense against people is strictly guarded.

"No one, lead the way!" Cheng Huaimo said, he really wasn't worried about Jin Yu stealing his teacher, what is Jin Yu's identity?Besides, he can exchange money for random things, would he care about this skill?Taking a step back, this craft is not something that can be learned just by peeking at it!

"I'm worried that Jia Fengfeng won't agree. This young master forgives me." The shopkeeper of Zhenbao Pavilion found a step for himself, bowed his hands awkwardly to Jinyu, and turned around to lead the way.

Jin Yu understood as soon as he changed his mind, and shook his head with a wry smile. It really can't be blamed on others, they just perform their own duties.Afraid of Cheng Huaimo's swollen face, Jin Yu explained: "The thing I want is unusual, and the technical requirements are quite high. It's better to communicate with Jia Gongfeng face to face, so as to save time and waste of materials." .”

"Brother is overthinking, but younger brother is not." Cheng Huaimo explained with a smile.

Hearing Cheng Huaimo's words, the shopkeeper of Zhenbao Pavilion became more respectful. When he reached the door of the workshop, he knocked on the door twice and said, "Jia Gongfeng, the young master sees that you are getting old."

"Come on, please wait a moment, master." The person inside replied.

Cheng Huaimo explained to Jin Yu: "Jia Gongfu is not skilled enough to say that if his father hadn't saved his life back then, the old man would not have come. But he also made some requirements, and the one thing is not to enter without permission."

"It's okay, and I can't wait for a big meeting." Jin Yu shook his head, not paying attention to it. Anyone who is capable these days should set his own code of conduct, otherwise he won't be able to show his own maverick. Yu can bear the range.

In fact, Old Man Jia is very low-key. He knows how much he owns. The reason why Cheng Yaojin saved him back then was because of his skill. Loess.But having said that, he is living a very good life here, and his youngest son has married a wife and had children. In the past, he would not have dared to think about these things.However, this kind of good life is coming to an end, I am getting older, although my kung fu is getting better and better, but my eyesight is no longer good, and it is getting worse, if I don't have the old background, I will not be able to do it long ago.

Old man Jia grabbed a piece of cloth to cover the eating guy, and went to open the door for Cheng Huaimo, for fear that the young master would blame him for being late.Even so, after the old man Jia opened the door, he still confessed first: "The old man is rude, please wait for a long time, please let the room get warmer."

Cheng Huaimo nodded politely, "Brother first please."

Jin Yu didn't intend to point out Cheng Huaimo's indifference to the old man on the spot. No matter how he looked at it, it was his family business.If you accuse Cheng Huaimo in front of the servants, it will damage Cheng Huaimo's face, so Jin Yu also chose to remain silent and walked in.

The room is warmer, but the light is dim.Since the work of cutting jade is a delicate work, candles are still lit in the room, and the surrounding area of ​​the workbench is as bright as day.It seems that "glass slag" is not unreasonably expensive. Even this production workshop uses such exquisite materials, so it's no wonder it's not expensive!
The working environment here is great!In the future, if I have free time, I will also set up my own laboratory.Jin Yu looked around, nodded in satisfaction, and then explained his purpose.

Old man Jia has lived for most of his life, and he has seen all kinds of weird requests, but Jin Yu's request this time makes him embarrassed, there is no room for independent development, he must strictly follow Jin Yu's requirements, the spherical surface is smooth , Natural, round, quite difficult.

"May I ask how big you want to cut?" Old man Jia asked after thinking for a while.

Hearing Lao Jia's question, Jin Yu gained some confidence, took out a piece of paper from his pocket and put it on the table.Who said advanced math is useless?If it weren't for Jin Yu's advanced mathematics, he really couldn't calculate the profile!

"I drew a picture, Mr. Jia can cut it according to the picture, and the thickness of each part is marked on it." Jin Yu pointed to several lenses on the picture and said.

"The old man doesn't know the words on it, can you read it to the old man?" Old man Jia showed embarrassment. He and the Arabic numerals on it are distant relatives, and no one knows anyone.

Jin Yu patted his head, neglected, and then told old man Jia one by one.Jinyu adopts the node algorithm. There are several points on each lens. As long as these points can be connected to make it smooth and round, then the lens will be considered complete.It took Jin Yu a lot of effort to convert the unit into the current market ruler.

While Jin Yu was talking, Old Man Jia nodded his head, his brows were furrowed, but they didn't relax.After Jin Yu finished speaking, he remembered one thing. He didn't know if there were vernier calipers these days!If not, it's really hard to grasp. "Well, is there something to measure the thickness?"

"Yes, the old man showed it to the young master." Old man Jia nodded, turned around and lifted a small corner of the workbench, and took out a caliper from inside. Although it looked a bit crude, it was really the prototype of a vernier caliper! (In 1992, a copper vernier caliper was excavated from an ancient tomb in the early Eastern Han Dynasty. The wisdom of the ancient Chinese working people is infinite.)
"As long as you have it." Jin Yu took the caliper and played with it. It is different from the later generations. There is no screw and it is pulled by hand, but it is still a remarkable invention.

"The old man can try his best." Old man Jia fully understood the reason and was willing to give it a try.This thing seems not difficult, but the technical content is really not low.It doesn't matter if it's thick, and it doesn't matter if it's thin. 360 lines, every line is the champion.As the leader of the jade carving business, Old Man Jia is unwilling to give up this opportunity to climb the peak of the industry.

"Success!" Jin Yu nodded, as long as he agrees, there is hope for it to be made, but the material still has its own requirements, "It must be transparent water jade without a trace of impurities! Colored ones are not acceptable, and it can be seen from one side. To show nothing."

"This``````" Old man Jia was in a dilemma. He usually only accepts dispatched workers, and the issue of materials is really not under his jurisdiction.

Cheng Huaimo has been listening for a long time. He doesn't think Jin Yu is messing around. When does this big brother's messing around make people dumbfounded?Laymen watch the excitement, while experts watch the doorway.Zhuoyu's trip is Huaimo's calculation of a layman, but he is not good at mathematics!After learning arithmetic with Jin Yu for more than a year, Cheng Huaimo found sadly that he could not understand the formulas and calculation methods used by Jin Yu.Experts will know if there is something as soon as they make a move, Jin Yu has made a move, Cheng Huaimo feels that Jin Yu has a lot of money in his stomach!As I said before, Cheng Huaimo has a high talent for doing business, and this time he subconsciously felt that it was profitable, so he also made a move.Cheng Huaimo told the shopkeeper standing aside: "Go and move all the transparent water jade from the warehouse."

The shopkeeper took the order and left. In his opinion, this is a big business and he can make a good fortune.

Jinyu learned about water jade later, and to people in the Tang Dynasty, it was the diamond of later generations, which was very rare and eye-catching.But when the shopkeeper lifted it, it was a basket!And it's all transparent!Jin Yu is very greedy for the Cheng family's wealth, this basket is enough to spend a lifetime of a middle class.

"Brother, please choose." Cheng Huaimo waved his hand, told the two strong men carrying the "glass slag" to wait outside the door, and said to Jin Yu.

Jin Yu casually picked up a piece of water jade, which was of good quality, but a bit small.The lens of a pair of glasses is best cut out of a piece of water jade, so that the color difference of the two lenses is the same, making people more comfortable to wear.

Jin Yu picked out a piece of water jade the size of a cigarette case, and said, "Just this one, make two of the same style."

Wearing glasses is a technical task. Jin Yu estimated Qin Huaiyu's prescription, two hundred and five.The second step in fitting glasses is to measure Qin Huaiyu's interpupillary distance in order to cut the glasses, so Jin Yu ordered Old Man Jia to make two circular lenses of the same size.

"Success." Old man Jia took the water jade with both hands, observed it, and said, "It will be finished in three days."

"No problem! If you do well, there is still work for you to do." Jin Yu said with a smile.As long as he is sure that he can do it, Jin Yu is very happy. It is said that he gave Cheng Yaojin the scope on the bow and crossbow.

"Shopkeeper, how much is it?" What should be explained has also been explained, and it is time to pay.For Qin Huaiyu's glasses, Jin Yu deliberately "robbed" a few golden nudes from Yang Ying, which looked heavy in twos and threes. Converted into the currency of later generations, it was about 5 yuan.

"Young master, please go to the tea room and sit for a while, and I will put these water jades into the warehouse." The shopkeeper arched his hands, avoiding Wen Tong who was inquiring by Jin Yu.

Jin Yu understands it, it seems that his professional quality is very high!I don't think this is the place to talk about prices.Now that everyone has spoken, Jin Yu put away his manuscript and walked towards the tea room, followed by Cheng Huaimo silently.

"Brother, what is this thing for?" In the tea room, Cheng Huaimo finished pouring tea for Jin Yu, and finally An Nai couldn't help but ask out of curiosity.

"For vision correction." Jin Yu's hands were a little cold, and the tea bowl was too small to hold, so he simply held the teapot in his hands, which was just the right size for him! "Some people can't see things in the distance, and some elderly people can't see things close up. They can be corrected with this device. Just wear it, and you can see things in the distance and in front of you clearly."

"Oh? So amazing?" Cheng Huaimo became interested, muttering words, pinching fingers and gesticulating, looking like a magic stick.He didn't doubt what Jin Yu said.

Seeing Cheng Huaimo's appearance, Jin Yu knew that this kid was pondering the value inside again, and he was also not worried that Cheng Huaimo would tinker with the glasses business behind his back.Firstly, he doesn't know much about degrees, and secondly, if the name of this stealing master is spread, it will be a fatal blow to Zhenbao Pavilion.

The shopkeeper of Zhenbao Pavilion was concerned about this big customer, and hurried over after putting Shuiyu down.

Jin Yu was still warming his hands with the teapot in his hand. Seeing the shopkeeper come in, he asked again: "How much? Can we talk now?"

"Thanks for your patronage, a total of 360 guan, I will charge you a deposit of [-] guan today." The shopkeeper of Zhenbao Pavilion replied with a smile. He is now waiting for Jin Yu to ask the price, so when Jin Yu asked, he opened his mouth and answered .

"How much?" Although Yang Ying once told him that the pair of jewelry was worth a hundred and ten guan, Jin Yu didn't care, thinking that women don't understand the market, but he didn't know that it was indeed the price!

"360 guan, if the son pays in cash, that is 450 taels of silver, which is 75 taels of gold. The deposit is 75 guan, which is 12 taels of silver, [-] taels of gold." The shopkeeper deals with money all day long. The exchange rate inside is very clear.

Jin Yu was speechless, he thought the money he brought today was a huge sum of money, but he didn't expect that even the deposit was not enough!The price of a pair of glasses is 23 yuan!Can this price go down in the history books?

black!It's dark!Really black!Jinyu is hesitating whether to explore the production of glass by himself. The price of 23 yuan should be enough to explore a hundred formulas.Jin Yu feels that he is a poor man, and his family can only get seven or eight hundred guan in a month. Fortunately, his family members are not short-sighted, otherwise a pair of glasses will kill the old man. Isn't it more tragic?One year's pocket money is gone!
"What money are you talking about? Talking about money hurts feelings!" Before Jin Yu could speak, Cheng Huaimo came back to his senses, and waved the shopkeeper out.

The shopkeeper of Zhenbao Pavilion hesitated to speak, seeing Cheng Huaimo's stare, he had no choice but to go out reluctantly.

"Big Brother```Big Brother!" Cheng Huaimo yelled again, but Jin Yu didn't respond, so he yelled again with a heavier tone.

"What?" Jin Yu reacted, shook his head and sighed: "The lenses in your house are not affordable by ordinary people! Call the shopkeeper in and pay the bill! I brought so much today, and the rest will be counted together later. .” Jin Yu took out his purse, and dumped a few gold nudes on the table, and a few pitiful copper coins.

"Emotions, didn't you hear my little brother just now?" Cheng Huaimo was a little hurt, his performance was a waste of expression.

"What did you say?"

"My little brother said that I won't take your money anymore, so it's my gift!" Cheng Huaimo said generously.

Jin Yu looked at Cheng Huaimo suspiciously, and said, "What the hell are you planning? No money? No money, what do you eat in Zhenbao Pavilion?"

"You can't earn money from anyone, brother, don't you think so?" Cheng Huaimo laughed disgustingly, this time is different from the business of disinfectant wine, compared to the profit of glasses, the profit of that thing is frighteningly low.With just six or seven pairs of glasses a month, Cheng Huaimo is confident that his net profit will reach a thousand!

"What is it? It's almost like this." Jin Yu seemed to understand what Cheng Huaimo was thinking. If he earns someone else's money, he can't earn his own money. That is to say, he can earn other people's money?How can I make money from other people?Let yourself contribute the method of determining the degree!

"Hey." Cheng Huaimo rubbed his head and told Jin Yu his plan, "Brother, look, the cost of these two lenses plus labor costs is only one hundred guan, if they are sold to those dignitaries with eye diseases , This business can’t be done without five hundred guan, what a profit it is!” Cheng Huaimo said, little stars appeared in his eyes, as if he saw a golden rare metal beckoning to him.

"What you said seems to make sense!" Jin Yu nodded, who doesn't like money?A thousand pens a month is equivalent to the fact that all the businesses in my family now make a lot of money, which is very tempting!

"How about it? Do you want to do it?" Cheng Huaimo frankly gave Jin Yu his profit margin just now, in the spirit of honest cooperation, and now he is straightforwardly seducing him.

"Damn! Why don't you make money if you have money?" Jin Yu rolled his eyes, "I only publish the data of the lens, I don't invest money, and I take [-]% of the shares!"

"Thirty percent!" Cheng Huaimo offered another [-] percent of the shares to Jinyu before agreeing.Whatever you do these days, you must pay attention to the teacher's reputation. Behind Jin Yu's back, he can also assign someone to find out the thickness of the lens, but firstly, the investment is too large, and secondly, the teacher is not well-known.With Jin Yu's ability, maybe he can come up with something in the future. It seems that he has suffered a small loss this time, but in the long run, the deal is very cost-effective, Cheng Huaimo thought to himself.

Jin Yu was also secretly relieved, Cheng Huaimo didn't stop Cheng Huaimo from starting the brewery, and bought wine at the market price, and when he figured out how to make glass, he couldn't say anything about regretting it, this deal is a bargain!This time, I just calculated the focal length and thickness of the lens with advanced numbers, so I got [-]% of the shares in vain. Technology is power, and future generations will not deceive me!
(End of this chapter)