The worldly talent, the kind nature, and the courage to act are all in one, full of the breath of young children, looking at it is lively and energetic: "Master Cong, why have you been coming and going in a hurry, the old lady wants to talk to you, you have a leisure, come to the Rongqing Hall on the West Road to sit down." ”

"As soon as I came back, most of the time I still greeted my ancestors. Sister Mandarin Duck is too good at telling jokes, I, Jia Cong, am just a concubine, how dare I sit in front of my ancestors, and there is nothing to talk about. Jia Cong turned around and said.

The huge courtyard between the inner and outer doors of the instrument is more and more lonely because of the wideness, and the living people are also a little dull under this rigid building, the golden mandarin duck bit the lip that was originally biting the lip makeup, as if the heart is sighing lightly, sighing lightly what the past was, the beauty of the memory is mixed with desolation, and said softly: "From the last year to the noon of this year, the filial piety days of the cong master are about half, this day is in a trance, and it is big in an instant, old, even if the filial piety period is not satisfied, but there are some things, The old lady might want to arrange an inquiry. ”

"For example, what about the lives of the three young ladies? Should the family be divided or united, and what impact will Cong Ye's eunuch career have on the clan? ”

Jia Cong took a deep breath: "Sister Mandarin Duck thinks too complicated, even if I think so complicated sometimes. What I can predict is that there are too many variables, and it is because of the unknown of blessings and misfortunes, so there are more people in this world who enjoy themselves in time. There are also crying and laughing in the clan, not to mention the ups and downs of the Huan Sea, and the day is precarious? You have to shout thunder, rain and dew, all of them are Jun'en? Either way, I had to do my best to clear the fog of what I called. I still remember that there are two sentences in the "Zengguang Xianwen" I compiled: Children and grandchildren have their own children and grandchildren, and don't be horses and cattle for children and grandchildren. Whether the old lady is worried or not, mandarin duck, don't you think, can she still give the three young ladies happiness, joy and happiness? ”

Mandarin duck couldn't say what was wrong with Jia Cong's words, and even when Jia Cong directly called her by her name, she didn't dare to say anything, but felt that it should be like this, you must know that she went to Jia Lian's house, Jia Lian was also polite to her, she thought about it, and then took out the strength of her partnership with Wang Xifeng when Grandma Liu entered the Grand View Garden and smiled: "Master, don't say those who have or don't, just say when will you come to say goodbye?" Or will you just go later? ”

"I'm sorry, I'm busy right now." Jia Cong said embarrassedly, but he didn't know if he was pretending.

"What are you busy with?"

"You've probably heard of it, but if you don't know, that's the best." Jia Cong said: "With this kind of expenditure, it can't support a few years, right?" ”

"It's no wonder that Mrs. wants to ask Qian Hua to give them a share of the field affairs, Master Cong, your room, although your sister Bao will be diligent and thrifty, but the courtesies are still exchanged, the palace is bribed, and all parties in the family make up for it, and the savings are not enough, unless the foreign officials of those local governors continue to give you big gifts, but in this way, Master Cong is very dangerous in the officialdom...... I and my grandmother and your grandmother have roughly calculated this account, and the silver that has come in one after another in the past few years is not less than one million, but including the above, there are various money shops and factories such as pacesetters, and then go in, how much is there for the time being. If you ask for money in the palace, it is tens of thousands of dollars, and it is not just a eunuch, and it is not possible to raise it, this is also one of the ways to protect your life and protect the official. Mandarin Duck knows that Jia Cong is an understanding person, and he also knows that he is also an understanding person: "Therefore, when it comes to stable savings, one is an old lady and the other is you...... Mother-in-law, of course, the old lady doesn't have many sources of income, but she goes out a lot. ”

"Thank you." Jia Cong looked at her red eyes, and said in a sincere tone.

"Thank me for what?" Mandarin Duck's oval face was full of doubts and strangeness, she thought about Jia Cong's difficulties, just as when Wang Xifeng was in charge of the house, she knew the latter's difficulties and went to visit, but she didn't know that Jia Cong had already walked out of the door of the outer instrument at this time, Mandarin Duck was melancholy and melancholy for a while, and she didn't know why she came, but when she thought that she had been out of Jia Cong's clutches for the rest of her life, she was finally relieved.

Jia Cong agreed to Feng Ziying's request and took him to visit the glass factory, glass is a new name, and the ancient glass contains glass. It was a poor place in the southern city, the old factory walls, the soldiers on duty in turns, it was very hot, it seemed that before you went in, you could feel the temperature of hundreds or thousands of crucible furnaces, and the coal (coal), quartz stone, realgar, orpiment, etc. were occasionally transported in large quantities in large quantities.

"Glass, is this thing amazing? Brother Zili, if this is to make glass, I can have tens of millions of people in the land of China, why bother to invite foreigners? Feng Ziying was disappointed and puzzled.

Jia Cong avoided answering, and Shan Ziye excerpted some historical books and asked Jia Cong to refer to them, Jia Cong nodded while looking at it: "Brother Feng, what you said is not unreasonable. I have a large number of glass excavations in China, the Warring States Period and the Western Han Dynasty. ”

Christopher, who supervised the work, obviously didn't believe it, and the small officials of the Ministry of Works held the unearthed objects, and there were still some unruly Dutch Matthews and Portuguese Christopher pushing and looking around, but it was the Englishman James who spoke first: "I pride myself on being proficient in various disciplines, can Master Jia know the chemical composition in him?" ”

"Your Excellency Navy, according to your popular chemical elements, our Warring States Western Han Dynasty was lead-based glass, PbO-BaO-SiO?? system, and later there was potassium-based glass, which can be obtained by roasting the most important ore in China, galena (PbS), and lead oxide can be smelted with quartz to obtain glass (900 degrees Celsius). ”

As an expert, Shangshu Shan Ziye of the Ministry of Industry nodded slightly, and the others listened quietly, and the foreigners were a little stunned, this vast eastern country had glass hundreds of years before the Jesus era? Is this true God? Although this glass is not identical to theirs, some glass excavated from other eras has bubbles, green or blue.

"As long as you have a little basic knowledge of mineralogy, you know that galena often coexists with barite, so the lead oxide obtained by oxidative roasting of symbiotic ore must contain barium oxide."

"The green and blue glass is because the ore used contains copper, which everyone should know."

The officials of the Ministry of Industry handed everyone a copy of the historical edit, and Shan Ziye said: "Everyone read the "Historical Records?? In the excerpts of the "Biography of the Goods and Colonies" and "The Book of Sui", it can be seen that Jia Cong is not wrong, as for the chemical elements, the old man is still studying, and the DPRK and China should be Jia Cong's first creation. ”

"When Renzong of the Northern Song Dynasty, Li Jiefeng wrote "Building the French Style", which clearly recorded the material formula of the glaze: three catties per Huangdan, three taels per copper powder, and one catty of Luohe stone."

When everyone listened to Shanziye's words and looked at the excerpted historical materials, Jia Cong continued: "According to my own research, as well as the hard work of the people and friends below, I think that copper powder is used for coloring, and Luohe stone is a very pure quartz stone, so I agreed to use Luohe stone from Mentougou in Beijing (Luohe stone with silica content of more than 90% in Mentougou in Beijing). Huang Dan, anyone who has been in contact with Taoist priests understands (Pb ?? O4）。 ”

"After the Tang Dynasty, glass was added with saltpeter, sulfur or borax (Na2B4O7 ?? 10H2O), borax out of Guozhou (Nanchong, Sichuan), inconvenient transportation, so lost. See the Dan Sutra "Jingfang Jingyuan" and "Jinhua Jade Liquid Dadan". ”

"The Long Compilation of the Continuation of the Governance of Tongjian" contains that in the Northern Song Dynasty Shenzong Xining Renwu, Jia Shiming offered the method to burn glazed tiles, which was very cost-saving, so the Song Dynasty court rewarded him with 500,000 yuan, and among the ingredients used by Jia Shiming, there was Huang Dan."

"To this day, we can also use the alum method, that is, saltpeter, alum [KAlSO4 ?? 12H2O] and metal lead, seen in the "Compendium of Materia Medica" and "Versatile Contemptible". ”

Jia Cong knew that the glass of the last method was more complicated, because there was more alumina in it, and he whispered to Feng Ziying: "It's always right to communicate with each other, what you want is to bring their science and technology." We have technology, but if we lack science, that technology will always die. ”

Just when the foreigners were amazed in their hearts, Shan Ziye flattered: "This year is also Renwu, I think Master Jia's achievements will not be less than 500,000 yuan of Jia Shiming in the Song Dynasty." ”

James, William, Matthews, and Christopher looked at each other, and what amazed them was not only the history of glass glass in China, but also the "chemical elements" in Jia Cong's mouth that seemed to be more reasonable than the ones they used, could it be that Jia Cong was still a scientist?

The scientists didn't have a sense of accomplishment at this time, they were a few feet away from the stove, Jia Cong's face was still red by the firelight so far away, and he said: "A few gentlemen, we will choose a few of the best glass instruments later, and work together to develop this kind of medicine that can help the world." ”