Zhao Yan returned to the courtyard with the mirror, it was already dinner time, Cao Ying and the others had already sat down in the restaurant to prepare for dinner, but at this time they saw Zhao Yan walking in with a box and smiling, and then he put the box on the dining table and announced loudly: "Everyone, stop, the mirror you have been waiting for for a long time has arrived, who wants it now?" ”

As soon as Zhao Yan's words fell, Princess Shoukang, who has always been faster than her brain, was the first to rush up, opened the box and picked out three mirrors with the same style, and ran back to Princess Bao'an's side and announced: "This is mine, the eldest sister, and the second sister, and you can pick the rest!" ”

Seeing that Princess Shoukang first picked out the mirror, Cao Ying and the others finally reacted at this time, and rushed over one by one with their skirts, crowded around the box and began to chatter about which mirror was more beautiful, which mirror looked more clearly, etc., Cao Ying even pulled Zhao Yan over to ask his opinion, but Zhao Yan could only nod again and again, no matter who asked, he said that it looked good.

WWW.UUXS.CC Zhao Yan brought back a lot of mirrors, Cao Ying and Xue Ning'er, Ye Lusi, and Ouyang Wanling were all divided into one side, and there were still some left, Zhao Yan was not stingy, and directly asked Xiaodou Sprouts and Mi Xue to come forward and pick one side, but these little girls were so happy, and the mirror they picked carefully in their arms and hugged it, for fear of accidentally falling out, and they became timid when working, and the speed of serving food was much slower. The angry Cao Ying directly asked these girls to roll back to the room, put the mirror and come back.

"Husband, the mirror has been made, Daomen (how are you going to produce it over there, you must know that our family still accounts for 30% of the shares?) During the meal, Cao Ying asked Zhao Yan that she was more concerned about the income that the mirror brought to the family than the mirror.

"I haven't asked about this yet, but Daomen has always done things quickly, and I guess they will send someone to talk in the next two days. When the time comes, Ying'er, you call me, let's talk to them together as husband and wife, and we must not suffer losses in this matter! Zhao Yan said very domineeringly, although the division is negotiated, but there are many places where a cooperative business can be done, and if you are not careful, you may lose a lot of benefits. So we must not be careless in the future.

"Hehe, I'm relieved to have a husband, the Daomen has asked for a husband several times, and they must not dare to play any tricks when the time comes." Cao Ying also smiled when she heard this, she was really worried that she was a little shocked, but with Zhao Yan here, even if she didn't speak, she would have confidence.

Two days later, it was exactly the tenth day of the decade. It is equivalent to Sunday in later generations, Zhao Yan has long wanted to implement the Sunday system, but the Great Song Dynasty has no Sundays, only ten days of ten, so he also followed the customs of the villagers, stipulating that schools and lectures are ten days off, which is also the same as the work and rest of the Guozijian and the major academies.

Taking advantage of the ten-day day, Zhao Yan rushed to the imperial palace in Tokyo again. Last time Cao Tong asked him for help, he had to find out first, why did the court have to lead glass? Originally, he could have gone to the ordnance supervisor to inquire. But then Zhao Yan thought about it, and decided to go directly to the palace, ask the reason, and then see if there is a way to solve it?

"Yan'er, why are you here, don't you have to lecture today? cough~" Zhao Shu asked Zhao Yan to come in after receiving the report, and then asked without raising his head. But then he coughed a few times, it seems that his body still hasn't fully recovered, and there are also a lot of twists and turns on the dragon case in front of Zhao Shu, and I don't know when it will be approved?

"Daddy, how did you forget, today is the tenth day. Even the ministers have to rest. Zhao Yan smiled and stepped forward.

Hearing Zhao Yan's words, Zhao Shu raised his head and showed a thoughtful look, it seems that he really forgot that today is the tenth day. At this time, Zhao Yan found that Zhao Shu's face was pale, but his cheeks were a little abnormally flushed, and his lips were also a little dry. ”

Hearing Zhao Yan's words, Zhao Shu waved his hand and said: "My body is a little uncomfortable, but it's not a big problem, I have had chest tightness and cough since I was a child, and I may be a little tired these days, so this old problem has been committed again, cough~"

When Zhao Shu said the end, he coughed twice again, although it didn't sound very strict, but Zhao Yan could clearly hear that his cough had phlegm in it, which made Zhao Yan can't help but ask again: "Daddy, it's not a way for you to cough like this, have you let the imperial doctor see it?" ”

"Don't worry, the imperial doctor has already seen it, but he said that the lung disease has not been cured, and he has also prescribed a few medicines to clear the lungs and suppress cough, I believe that as long as I drink it for a few days, I will be fine." Zhao Shu put down the pen in his hand at this time and said with a smile, his old problem has been entangled with him for nearly half his life, although it is very uncomfortable, but it is not fatal, and he is slowly getting used to it.

"By the way, Yan'er, why did you come to the palace today, I remember that you are a busy person now, even if it is ten days, I'm afraid there are a lot of things to do, right?" Zhao Shu asked with a smile again at this time, he was also more and more satisfied with Zhao Yan's son.

Although Zhao Yan was a little worried about Zhao Shu's body, when he heard him ask about the reason for his come, he hurriedly said: "Father, the microscope I developed in cooperation with Daomen a few days ago was finally successful, and I was preparing to make a few more ones, but I didn't expect that my father made an order some time ago and requisitioned the lead glass produced by Daomen, which made it impossible to make the microscope, so Erchen came here today to ask Daddy what you need lead glass for, and if there is anything you need Erchen's help with?" ”

"Hehe, it turns out that you are asking about this matter, in fact, the reason why I ordered the requisition of the lead glass of the Daomen is mainly because of you!" After listening to Zhao Yan's words, Zhao Shu suddenly smiled.

"Me? What's the matter with me? Zhao Yan was extremely surprised, he didn't expect this matter to go around and around, and finally it went around his own head.

"Haha~, it seems that Yan'er is really forgetful, a few months ago you held a moon viewing conference in the microscopic display, and that day my father also went, and the telescope did see the true face of the moon, and this matter was in the past, but Shen Kuo, who was the weapons supervisor that day, also went, and after he used the telescope, he immediately realized that this thing could be used in the military, so he borrowed the telescope from the microscopic for a few days under the banner of the imperial court......"

Zhao Shu said and explained the reason for the matter, which not only involved Zhao Yan, but also involved Shen Kuo, simply put, Shen Kuo discovered the military use of the telescope, and then borrowed a few days to make some real things, and figured out the structure of the telescope and the materials used, a few days ago this proposed to the imperial court to build yì, hoping to manufacture telescopes on a large scale and equip them with generals in the army, so that the generals could take the first step to discover the enemy's dynamics when marching and fighting.

Zhao Shu finally decided to agree to his construction after receiving Shen Kuo's construction and thinking about it carefully, but in the materials submitted by Shen Kuo for the manufacture of telescopes, lead glass can only be produced by Daomen, so in this case, Zhao Shu can only issue an order to requisition the lead glass of Daomen.

"Who says telescopes have to use lead glass?" Zhao Yan asked with a surprised face when he heard this, the telescope is not a microscope, although it is definitely better to use lead glass, but it can also be replaced by some ordinary glass with better light transmittance.

"Huh? The materials used to make the telescope are all obtained from the telescope for watching the moon in the door, Shen Kuo also specially indicated that special glass is used, and I asked people to inquire about it to know that it is lead glass, is there anything wrong with this? Zhao Shu asked in surprise when he heard Zhao Yan's words.

Zhao Yan patted his head when he heard this, he finally understood why Zhao Shu ordered lead glass, it turned out that although Shen Kuo and they studied and understood the structure of the telescope and the materials used, they did not dare to change it without authorization, the telescope that observed the moon was specially told by Zhao Yan to be made of lead glass, and Shen Kuo also read the book and directly copied all the materials.

Thinking of this, Zhao Yan had to explain to Zhao Shu helplessly, and finally concluded: "Daddy, the manufacture of lead glass is very complicated, and the output is not much, if you only use lead glass to make telescopes, I am afraid that you will not be able to make much at all, but telescopes are different from microscopes, and the transparency requirements for glass are not particularly strict, so you only need to use ordinary glass with good transmittance." ”

"I see, I was worried about the lack of production of telescopes before, but now it seems that Shen Kuo and they made a mistake." Zhao Shu also said with a sudden face when he heard this.

"Hehe, Shen Kuo and they are not a mistake, in the future, they can use lead glass to make a batch of relatively high-end telescopes to reward meritorious work in the army, as for those ordinary telescopes, you can try to equip the generals." Zhao Yan also smiled at this time, Shen Kuo was a little anxious to do this, and he didn't ask for his own opinion, it seems that he also wanted to express himself in a hurry, but he didn't expect to make a mistake, it seems that the evaluation of Shen Kuo in history is not wrong, his pursuit of fame and fortune is indeed stronger than ordinary people.

"Haha~, it's still Yan'er, your head is turning fast, this is a good way!" Zhao Shu also praised when he heard Zhao Yan's construction, "In addition, since Yan'er is here, then you will notify the ordnance supervisor and tell them that the telescope does not have to be lead glass, so as not to disagree with the people of the Daomen." ”

"Daddy is wise, my son is going to inform the ordnance supervisor!" Zhao Yan immediately received the order, in fact, he also knew that the reason why Zhao Shu sent him was also to knock Shen Kuo and let him not be too eager for quick success.

"Ahem, cough~" Just as Zhao Yan was about to turn around and leave, suddenly Zhao Shu let out a violent cough again, which made Zhao Yan can't help but stop, and then hesitated for a while, and finally spoke, "Daddy, Erchen has a way that may cure your lung disease, I wonder if you are willing to try?" (To be continued......) R1292