"Internal stress?" Song Yi frowned, wondering what this meant.

"Yes!" Jiang Tian picked up a piece of new glass that had cooled down for a short time, and observed it in the sunlight, he found that not only the texture was uneven, the color was impure, but also mixed with a small number of bubbles, and he gently knocked it towards a wooden stool in his hand, and it did not break immediately as he imagined, so he increased his strength a little, and this time he finally heard a crisp "Bang!" ”

Jiang Tian himself looked at the cross-section, and he couldn't see anything as a glass professional: "The so-called internal stress refers to a force inside the object. It is this power that leads to the fragmentation of the lens. ”

The pervert is also confused, but he has the advantage of being able to ask shamelessly: "Brother Muhua, don't sell it, then tell me what is going on." ”

In fact, Jiang Tian also had a headache, he didn't know how to explain to these scientific illiterate people, his little knowledge was all the skin of his previous life in books, and he had no clue how to solve it: "I remember that you brought a few watermelons this morning, pick one that is ripe, and I want to be intact." ”

Song Yi thought to herself, are you still in the mood to eat watermelon? That's right, it's not you who is in a hurry anyway, and besides, this is also the time to put on the score, since we all have to rely on you to complete the emperor's will, it is also appropriate for people to ask for benefits, otherwise how to bargain. So he hurriedly glanced at the pervert, and the other party also turned around and picked the watermelon with understanding. Jiang Tian was not polite, and sat on the benches used by the workers casually, watching how they fired glass, and looked at the processes of loading, smelting, and casting one by one. The watermelon was brought quickly, this was personally selected by Liu Baokai, and he was still very good at eating, so don't look at the lack of cutting and checking, but he was sure that this was a ripe watermelon.

Jiang Tian stopped them from cutting and dividing the food, but took the watermelon and gently tapped it and listened to the echo in the melon skin: "That's it, you can see it." ”

I saw him bend his fingers and flick it heavily towards the melon skin, and then he heard a "snort", and the whole watermelon cracked a big hole, and then he pointed to this crack and said: "You see, when the raw melon is still growing on the vine, I can't crack a watermelon so lightly." The skin of an overripe watermelon becomes soft and collapsed, and it is impossible for it to crack like this, so the reason that determines whether the ripe melon is like this is what I call internal stress is at work......"

After a while, Jiang Tian finally explained the basic principle of internal stress to Song Yi, and they had been staying in front of the glass kiln, Jiang Tian, who was sweating profusely, picked up a corner of watermelon and gnawed it.

Song Yi was not in the mood to eat melons, he didn't expect that the other party would sue himself unreservedly for such an important thing, the key to the success of the trial production has been broken by this "god man", and the reason why his own glass is not as good as foreign goods is here. But how can we improve the quality?

Jiang Tian has been staring at the glassmaker for a long time, and he found that these people still have their brains, first of all, they are afraid that soot will pollute the liquid glass, so the crucible is covered during calcination, and secondly, they also keep stirring the liquid glass, it stands to reason that a lot of bubbles should have been removed, but why are their products still only considered defective? He was also trying his best to recall the little knowledge he would accumulate when he went to school, in fact, because the education system of the Celestial Empire was notoriously rigid, he was able to memorize so much knowledge that he couldn't usually use, Jiang Tian as a non-professional person could recall so many things It was already a solid foundation, but he didn't come up with a solution to the problems in front of him for a while.

Seeing that Jiang Tian really had no good way, Song Yi had no choice but to sigh: "Fortunately, the telescope for the queen's mother has been made, and Brother Jiang has been here for a long time, so let's go back to the city at will, I think the five hundred taels should have been sent to the mansion at this time." ”

Jiang Tian also knew that it was useless to be in a hurry, it was better to put down this burden for the time being, no matter how it was said that the five hundred taels of silver had already arrived, even if he couldn't earn back the one thousand taels, it didn't matter, with this money to find a deserted place, it shouldn't be a problem to be a landlord incognito. So he no longer hypocritically pushed, and Shi Shiran took the bus of the Academy of Sciences back to Beijing. When he arrived at the front of the teahouse, Jiang Tian felt that today's atmosphere was a little different as soon as he got out of the car, and when those who liked to listen to cross talk saw him, they all put on a cordial smile like seeing an old friend. But when he got off the car today, it was different, everyone who saw him, whether they had heard cross talk or knew him, all of them invariably respected him, even if there were some familiar guests, they could remain respectful at the moment and dare not look at him.

"What's going on today?" With a full stomach full of doubts, as soon as Jiang Tian stepped into the door of the teahouse, he saw a thin figure standing in the store talking to a circle of tea customers, and the people around him were all curious to listen to his colorful speech, as if listening to a very attractive story. So he leaned over and whispered, and also stopped some people from trying to snitch.

“…… Don't you see it, the furnace is ten zhang high, and the flames that spew out can sweep away a big living person, my master just went to the stove and chanted a word, and after a while the furnace slowly went out, and then spit out two shiny glass beads, I heard that this is the fire avoidance bead that the saint wants to refine......"

Jiang Tian was amused by his statement, this kid is really a storytelling material, don't look at him only stayed in the workshop for a few days, but he said that such a studio is like a Senluo Treasure Palace, there is indeed a monkey version of a small blast furnace outside the village, which is a real furnace for refining various alloys, but it is not so exaggerated as ten zhang high, and he obviously confuses smelting glass with a blast furnace, and he has also become the Taishang Laojun who alchemy for the Jade Emperor, who is the raw material in the furnace? Could it be some sharp-eyed monkey? Now Jiang Tian understands why the people around him are a little abnormal when they look at him, if it used to be regarded as the audience's recognition of an artist, now it has become the awe of ordinary people for the body of a half-immortal.

Thinking of this, he decided to interrupt this imaginative guy, so he stretched out his hand and patted the top of Zhao Zhi's head: "Should I throw you into the furnace for seven seven hundred and forty-nine days?" ”

That kid was a spirit, don't look back, you know who is coming, so he slowly turned around amid the laughter of the people around him, and then opened his mouth with a hippie smile: "Master, oh no, sir, you are back." ”

"If I don't come back, you don't know what you're going to say to me!" As he spoke, he twisted Zhao Zhi's ears and walked to the backyard.

When he came to the back, Jiang Tian didn't have time to speak in a hurry, but he saw Xi Yun running in front of him in a hurry, this girl could stand still in front of him, and then he gasped a few times, "Brother...... The master is back, do you want to bathe or eat first? ”

Jiang Tian was stunned, why was she so abnormal? Even if I was a little taciturn before, I wouldn't seem so raw, and besides, I took a bath, don't you know, it's all standing by the well in shorts and taking a few showers with cold water, when did you take a serious bath?

Jiang Tian was a little caught off guard by this sudden change, but before he could react, Xi Yun continued: "Liu Gongzi has already sent someone to send the silver taels over, and they will be placed in Mr.'s house, do you want to count them first?" ”

Counts! How to count? Could it be that you put a balance in front of you and pick up the silver ingots of five hundred taels one by one and weigh them? Not to mention that doing this job is what many people dream of: "No need, let's eat first, and after a while it should be time to sit down in the evening, and after eating, we can start work." ”

Jiang Tian was normally ready to return to his previous routine, but this statement startled the two children, and Zhao Zhi hurriedly stopped: "Sir, how can you deign to be an official now?" ”

"Official?" Jiang Tian was even more confused now: "When did I become an official?" ”

Zhao Zhi was also stunned, don't you know your feelings? So I had to confess honestly: "Just now, Liu Gongzi came with you to escort the silver two in one step, and he also said that the grace he invited to you has been realized, it seems that he is a member of the alternate Academy of Sciences, from the fifth grade!" ”

"From the five pins! Outsider? Jiang Tian was also taken aback: "When did I beg him to find an official for me?" ”

Before this question could be answered, Xi Yun spoke again: "The silver left by Liu Gongzi is still in the old man's house, and Mr. Zhao said that you should take care of it yourself." ”

Jiang Tian licked his lips and understood that now was not the time to dwell on that official position, so he said softly to the two children: "Don't call me master, what you used to call me is still what you call now, and don't talk nonsense to me outside, and don't talk nonsense to me outside." ”

Looking at the box parked in the house, needless to say, he also knew that there was a heavy five hundred taels of silver here, and Jiang Tian would definitely not be able to hold it, which also made him dispel the idea of continuing to make money, if he really put it here for one thousand five hundred taels, even if he ran away, he would not be able to run far. I didn't think about what to do with it, but fortunately, there were only a few people in the yard, and I didn't have to worry about attracting thieves. Looking back at the expressions of those guests just now, it turned out that it was not Zhao Zhi's nonsense that made these people retreat, after all, they are all adults, who would believe that a child is there to play on the topic. They really have a sense of awe for officials from instinct, especially when they climb to the sky in one step and jump over countless thresholds to directly obtain the outlier from the five-rank identity.

"Sir!" Zhao Zhi, who was more excited than his master, shouted in the courtyard with his throat: "I forgot to say just now, Liu Gongzi set up a table of flowers and wine in Yihong Mansion, saying that he was going to congratulate you in the evening!" ”

This kid...... What's wrong with you're afraid that no one else will be able to hear? Jiang Tian sadly found that the career path he had dreamed of was in front of him, but he had already decided to return to the mountains and forests, and Liu Baokai was also a blind coaxing master, you are the eldest young master of the Duke's Mansion and have nothing to do with the gentlemen to eat flowers and wine, I am now a civil official of Wupin, and if you are so blatantly treated, won't you commit the taboo of befriending officials? If this alone is enough to bring great disaster to your family, even if your father takes the initiative to nominate me as an official, it should be that I put on the pride of a literati and accept the appointment with peace of mind, and then pick a dark and windy night for a month, secretly carry gifts to visit and thank you, and touch your family's connections by the way. It's good now, tomorrow everyone in Beijing will say that in order to tie up a lucky outsider, the eldest prince of Liu actually put flowers and wine in the Fengyue field to invite merit! What is the intention?

I wanted to refuse, but after thinking about it, this was also an opportunity, so Jiang Tian washed his face with pancreas, changed into clean clothes, and then Shi Shiran walked to the store. The tea guests were still talking, but when they saw him come out, they immediately shut up and looked at him with their eyes.

Jiang Tian didn't pay attention to this, but walked up to Boss Zhao: "Shopkeeper, today's friend has a banquet, and I have to entrust Zhao Zhi to do the evening work on my behalf." ”

Old man Zhao thought to himself, which one are you singing? It's all five-grade officials, do I dare to let you work? Besides, Zhao Zhi is no different from your family scholar, what does it mean that you let him take over the work of the shopkeeper? Why do you still want to wear many hats? But looking at his sincere expression, it doesn't look like he's playing any tricks, and besides, you just let Zhao Zhi come over and say it, why do you have to shout it out in public? Are you afraid that others will not be suspicious of you?

The old man, who seemed to have caught some clues, decided to get off the donkey down the slope and asked in the same loud voice: "Childe is going to resign?" ”

Jiang Tianxin said that you have a lot of eyes in your heart, and you can guess this: "I have this intention in the next." ”

The old man nodded, and then Zhengse said, "So the son, please." ”

These two people played a double reed, but they scared the tea guests who "pricked up their ears" and eavesdropped, this stupid show can't really lack heart, right? Don't want all the glory and wealth in your hands?

Jiang Tian, who had done enough, slowly shook out of the teahouse, trying his best to pose as a worldly master, this shape is almost concentrating on the distance and the sleeves are fluttering, but unfortunately there is no wind tonight, and you can only see the red mansion in the distance. There is no need for a turtle slave to guide the way, Jiang Tian walked to the door he frequented familiarly, and naturally many people pointed at him along the way, and the attention was more eye-catching than a certain rich man showing off his wealth, the key was that no one expected that this showman, who was always not doing his job, would ascend to the sky in one step.

Pushing open the door, I saw the pervert sitting there with a sad face, and Xin Yue, who was sitting next to him, was also frowning, and after seeing Jiang Tian walk in, he was even more worried: "Oh, I said Jiang Gongzi, how can you really come?" ”

Jiang Tian also knew what she was worried about, and looking at the pervert's depressed expression, he knew that he must have listened to Xinyue's detailed analysis and discovered how stupid his wrong behavior was, in fact, Tian Xuhai and Song Yi should have understood when they refused to come with him at the beginning, why didn't he think of so many twists and turns? I just wanted to send a message to Jiang Tian and ask him to refuse, but I didn't expect you to come to the door so directly.