Hearing Li Su mention the reward, Wang Xijun frowned, and said with some hesitation: "Your Highness, the person who can make glass has found it, but something went wrong." ”

"Oh, what's the problem?" As soon as he heard that the person who could make glass had been found, Li Su was immediately shocked, the bottle of perfume she gave to her mother and the mirror were all made of crystal, not only the output was extremely low, but also the cost was extremely expensive, and the perfume he produced now could only be held in opaque porcelain bottles, and the mirror was not able to be produced in large quantities. Therefore, Li Su is very eager to get the glass out, you must know that glass products are a good thing, not only can be made into mirrors, bottles and other daily necessities, but also can be made into chemical instruments and various optical instruments, such as the good news brought by the 102 chapter Duan Lun that Li Su wants to make the most, such as telescopes, glass windows and other things.

Hearing Li Su's question, Wang Xijun sighed and told the situation of the person who could make glass. Although the firing process of local glass and glass is very similar, if you want to let the glass craftsman fire out the glass, it is not something that can be completed in a short time, but no one in Datang will not matter, there are many Hu people in Chang'an City, many of these Hu people come from Persia and other places in Central Asia, which is one of the production areas of glass, so Li Su believes that some of these Hu people must know the firing technology of glass, so the object of the reward is mainly these Hu people.

Sure enough, not long after the bounty was issued, a Hu merchant came to apply, but unexpectedly, this Hu merchant did not know how to burn glass, but he had a slave who had worked in a local glass workshop in Persia for nearly ten years, and was very proficient in the materials and firing of glass.

Wang Xijun didn't care what slaves were not slaves, as long as he could burn glass, so he was very generous and wanted to exchange the reward for the slaves of Hu Shang, but he didn't expect that the other party was not only greedy, but also very smart, he said that the reward of thousands of dollars was just to ask for the technology of firing glass. If only the good news brought by Duan Lun in Chapter 102 gave him a thousand times, he could have asked the slave to provide the glass technology, but the slave was still his. If you want both technology and slaves, you must pay a thousand more, which is the price of the slave itself.

Wang Xijun was furious when he heard it, although what this Hu Shang said sounded very reasonable, but a slave only asked for a thousand yuan, which was obviously blackmail, and there were people in Chang'an City who specialized in selling slaves. The average slave is only a few yuan, and the most expensive Kunlun slave is only a few dozen yuan, and I have never heard of a slave who can be sold for more than a hundred yuan, but now this Hu merchant has opened his mouth widely. A slave asks for a thousand yuan, isn't this blackmail? Of course, Wang Xijun couldn't agree, but that Hu Shang's attitude was also very resolute, so the matter was now deadlocked.

After listening to Wang Xijun's narration, Li Su weighed it in his heart, although as long as there is a glass firing technology and handed it over to the craftsmen to study, it will definitely be able to fire glass, but it will definitely cost more than 1,000 manpower and material resources. Coupled with the delay time, the cost is even higher, so in terms of cost, it is definitely worth spending thousands of times to buy a slave who is proficient in glass firing, after all, as long as this person is there, as long as the materials are suitable. You can get the glass out in the shortest possible time. But thinking of spending a thousand yuan to buy a slave, Li Su also felt a little depressed, not because he was heartbroken about the thousand yuan, but because he saw that this was a pit, he still had to jump down. This feeling of being cheated by someone is really unpleasant.

Li Su is not a lord who is willing to suffer, and as soon as his eyes rolled, he thought of a good way, and asked Wang Xijun to tell Li Yong about this with a wicked smile. Then let Li Yong 'talk' with that Hu Shang. When Wang Xijun heard this, he immediately understood what Li Su meant, and snickered at Li Su for being shameless, Li Yong's bastard boy's temper is full of Chang'an, who doesn't know? If that Hu businessman dared to ask him for a price, Li Yong would definitely let the other party know, what is a Tang Dynasty gentleman?

However, Li Su was still a little worried about Li Yong's ability to do things, and personally wrote a letter to him, telling him that it was okay to make a mistake, and it was okay to beat people, but the slave must be completely obtained, and if he did this, the glass factory he opened in the future would give him a free share.

"Your Highness, forget about the fireworks last time, but this time you even let others interfere with the glass, do you know how much of a benefit this stake is?" Seeing that Li Suxin was going to give Li Yong Yicheng shares, Wang Xijun said distressedly at the moment.

"Haha~, you little money fan, why haven't you forgotten the fireworks until now?" Li Su looked at Xijun's distressed little appearance, and affectionately reached out and scratched her nose and said.

"How could I forget, it was fireworks, during the August Festival, didn't you see how many people rushed to buy fireworks as soon as they went on sale? But it's good that you don't produce it yourself, but you don't even have a patent registered, and you actually gave it to the general in the palace as a supervisor for nothing, and you didn't ask for a penny, you ......" Wang Xijun has long been accustomed to Li Su's lightness, but when he said this, his face was heartbroken, and he almost pointed at Li Su's nose and scolded him for being a loser.

"Hee-hee, why do you only have money in your head?" Li was stunned and rubbed Xijun's head, although he was smiling on his face, he actually felt pain in his heart, but there was no way, sooner or later he had to offer gunpowder, and thermal weapons would have to be developed sooner or later, and the formula of gunpowder must also be kept secret, he didn't want to spread the gunpowder formula to several surrounding countries, in case they came up with any new weapons, wouldn't it still be the army of Datang that would suffer in the end?

However, the fireworks were specified by his emperor's father to be produced, and Li Su wanted to keep the formula of gunpowder secret, but if the fireworks were produced in his house, it would definitely not be able to be kept secret, after all, the craftsmen were recruited from outside, and there was no word for trust at all. In addition, it was not safe, Li Su didn't want to fall asleep one day, and suddenly flew into the sky with a bang.

So Li Su thought about it for a long time, and finally let him think of a way, that is, to find the master craftsman Yu Wenhu, who will provide him with gunpowder recipes and fireworks production methods, and will have craftsmen and workshops that produce fireworks in the prison, so manpower and space are not a problem, and as a government agency in the palace, it is not very difficult to keep it secret, so it is handed over to them to produce fireworks, which solves Li Shimin's requirements, and can also be kept secret. The only drawback is that Li Su can't earn a penny on fireworks.

Everything has advantages and disadvantages, and if you want to keep it secret and not delay production, you always have to pay a price! Li Su could only use this sentence to comfort himself and Wang Xijun, although Xijun wanted to know why Li Su had to keep the gunpowder formula secret? It's a pity that Li Su just didn't say it, so she had no choice but to give up.

After reporting these things, Wang Xijun no longer stayed, dealing with the follow-up plan of Taiyuan Wang's and the expansion of perfume production, it was enough for her to be busy for a while, and she could also take advantage of this busyness to forget about Li Yu's wedding, although Xijun has never had extravagant hopes for the position of the princess, but whenever he sees the lively scene of lights in the Liang Palace, his heart is inevitably sour, and sometimes even his eyes are astringent.

As soon as Wang Xijun was sent away, Li Su picked up the Three Kingdoms and was about to continue reading, but the next person came to report again, and his uncle Duan Lun, who was still the secretary of the Ministry of Works, came again. Li Su didn't dare to slack off, and was about to change his clothes and go to the front to greet him, but he didn't expect Duan Lun to wait at all, so he asked his subordinates to take him to Li Su's study.

"Haha~, Rokuro, I'm overjoyed!" As soon as Duan Lun came in, he laughed and shouted at Li Su, his old face flushed with excitement, and even his beard was raised high.

As soon as he saw the other party's appearance, Li Su immediately guessed a rough idea, and said with a smile at the moment: "Hehe, Liulang congratulations to my uncle, I finally studied the steel filling method, you have made such a great achievement in office, it will definitely make your father Emperor Longyan happy, plus the Quyuan plough that was offered by your hand a month ago, it must not be too much to be crowned a county king in the future." ”

"Where, where? This is all thanks to the work of Liulang, the steel filling method is thanks to the theory you proposed, and the Quyuan plough is not to mention, it is completely made by you, old man, I also took advantage of you! Duan Lun hurriedly said modestly. He is really convinced by Li Su now, not to mention this newly developed and successful steel filling method, only the invention of the Quyuan plough last time surprised him and all the officials of the Ministry of Industry.

Last time, Duan Lun because the steel filling method provided by Li Su was just a theory, which caused him to be very dissatisfied, and finally Li Su promised him to make a new thing to Duan Lun as compensation, so a few days later, Li Su took the Quyuan plough that had been done by the Ministry to the Ministry of Industry, and demonstrated to them the use of this new type of plow, as a result, this kind of flexible operation and extremely saving manpower, animal power plow, immediately attracted Duan Lun's attention.

After that, Duan Lun immediately ordered the craftsman to imitate it, and sent it to the farm near Chang'an for trial, and the people who used it unanimously responded that this new type of plough was much stronger than the previous straight plow, as long as it was operated properly, a person could even open several acres of land in a season. As an emperor who attaches great importance to farming, Li Shimin was also very happy when he saw the effect of Quyuan plow, and he promoted it in the coming year, and also rewarded Duan Lun, Li Su and a number of officials of the Ministry of Industry.

Just presented the Quyuan plow, and now the steel filling method has been completed, and when the steel production of Datang will increase several times in the future, I am afraid that Duan Lun's name will also leave a strong mark in the history books. And Duan Lun also thought of this, so he was so enthusiastic about Li Su.

Li Su saw that Duan Lun was so happy, and he happened to have something to ask him, so he came up with a smile and said: "Uncle, you see that the little nephew has spared no effort to help you, and now the little nephew just has something difficult to ask you, you see ......"!!