Li Zicheng got a large amount of grain and silver in Lanzhou, so he stopped transporting grain from Xining, but the Xining rifle needed to be replenished, and the main thing that the transport team transported this time was bullets, as well as some rifle accessories.

When Tang Ruowang heard that Li Zicheng was in Lanzhou, he couldn't help but be overjoyed, and immediately brought his entourage to pay a visit, "Governor! ”

"Bishop Tang is my old friend, so there is no need to be polite," Li Zicheng just asked Tang Ruowang to sit down, but found that there were four people kneeling behind him, all of them with their heads down, and they couldn't see their faces clearly, "They are ......"

"Metropolitan Governor, they are all the students you want," Tang Ruowang laughed, "Metropolitan Governor, they are all students of Xining Science and Technology High School, you, the principal, don't even remember your own students?" ”

"Haha," Li Zicheng also laughed, he, the principal, was only famous, and he actually didn't have time to take a few classes, "They all lowered their heads, I naturally didn't know them," and said to the students: "You all get up, what's your name?" ”

"Student Lu Rongda!"

"Student Yu Xiao!"

"Student Gong Mingguang!"

"Student Ji Jie!"

Looking at the students who were all imposing, Li Zicheng was secretly happy, at least they were completely different from the officials of Longyou, if they were put into Longyou...... However, Li Zicheng is not ready to let them enter the officialdom, these high-achieving students, but the first batch of scientific and technological talents trained by Xining Science and Technology School, although the level is limited, but the Heavenly Mandate Army needs them as pioneers.

"Sit down, don't be polite, let's talk about the scientific knowledge you learned from Mr. Tang!"

"The students learned a lot from Mr. Tang......"

Li Zicheng listened to it for a while, and then diverted the topic: "Mr. Tang taught you this knowledge, I hope you will study it well in the future, give full play to your expertise, and do more beneficial things for the people!" ”

"Yes, the Metropolitan Governor, the grass people and others will be taught again!"

Li Zicheng nodded, but said to Tang Ruowang: "Lord Bishop, I don't know if the industrial thermometer you made last time is there?" ”

"The Governor said, but this?" John Tang took out a cloth bag from his arms, carefully unfolded it, and peeled off the three layers of cotton cloth before revealing the things inside, "When I was in the Holy Roman Kingdom, I once heard of this kind of thing, and I thought it was a steel shell, but after the Metropolitan Governor mentioned it, I realized that the original shell was made of glass, and I don't know if it meets the requirements of the Metropolitan Governor!" ”

Whether it meets the requirements or not, the key is the accuracy of the thermometer, as well as the service life, Li Zicheng couldn't judge for a while, thought for a while, and handed it to Gong Mingguang, "Mingguang, you take the thermometer and test the temperature of the boiling water, pay attention, it must be boiling water!" ”

"Yes, Grand Duke!" Gong Mingguang took the thermometer, bowed slightly, and left the hall to test the temperature of the boiling water.

Li Zicheng stretched out his thumb to John Tang, "Mr. Tang's scientific attainments, I am far behind!" ”

"The Metropolitan Governor has won the award, and the Metropolitan Governor is my guide in science, without the Metropolitan Governor's mention, I would never have imagined that the thermometer is actually a glass shell!" John Tang bowed slightly, and crossed his hands on his chest, "God bless the Grand Duke, Amen!" ”

"Haha, Bishop Tang, we don't have to flatter each other anymore," Li Zicheng laughed and said, "Mr. Tang, if this thermometer meets the standards, can it be manufactured in large quantities?" ”

"I'm afraid it won't work to make a lot of them," John Tang thought for a while, still shaking his head, "If the Metropolitan Governor needs it, as long as I have leisure, I can still make a few!" ”

Li Zicheng was slightly disappointed, however, in this era, there is no machinery, and it is too difficult to produce on a large scale, so he set his eyes on another student and said: "Ji Jie, learn from Mr. Tang well, what I used to learn was knowledge, but in the future, it will be the manufacture of all kinds of things!" ”

"Yes, Grand Duke!" Ji Jie set her eyes on Tang Ruowang.

Tang Ruowang couldn't help but laugh and said, "Governor Dadu, I still want to keep these techniques for pressing the bottom of the box, and eat in the Heavenly Mandate Army in the future...... Anyway, when I have free time, I will tell Ji Jie the principle of manufacturing, and in the future, these things will be handed over to him! ”

"If Bishop Tang wants to eat, I will take a position on behalf of the Heavenly Mandate Army, and I will raise you in the future, I'm afraid you won't even have time to eat," Li Zicheng also laughed and said: "The Heavenly Mandate Army has conquered Longyou, and nearly a million people in Longyou are waiting to be fed, how about sending missionaries to Longyou to preach?" ”

"Missionary? Nearly a million? John Tong almost dropped his jaw, and he wanted to go into these people at once and teach them the Gospel of God himself. The Metropolitan Governor asked me to come to Longyou just for the missionary business? ”

Li Zicheng said with a smile: "Let nearly a million people, all believe in God, I am afraid that it will be difficult to do it for a while, but I am still sure that three or four percent of the people will believe in God." The number of people he considered was, first of all, to let the foreign races, represented by the Hui, join the Catholic Church, and "become Han nationality and serve God", which was a hurdle that they had to overcome, otherwise, they would be wiped out.

This time, taking advantage of the opportunity of the Mandate of Heaven Army's crusade, they must also change the trend of the people's beliefs, even if they cannot believe in God, they must withdraw from the Terror Cult.

Longyou is different from Xining, Xining is to maintain the status quo, while Longyou has been plowed by the Mandate of Heaven army, and even the land has been redistributed, which has completely broken its original shackles, and at this time of breaking the old and establishing the new, it is the best time to vigorously promote Catholicism.

"Three or four percent is already a remarkable number," John Tang seemed to be burned by fire, and was about to set off almost immediately, "Governor, then I...... I don't have to waste time, I have to go on a mission......"

"Bishop Tang, don't be anxious," Li Zicheng looked at John Tang's anxious appearance, knowing that he was a real Catholic, and although he was in the name of an honorary bishop, it was actually for political purposes, "Bishop Tang, if you want to hurry, you can't reach it, I have already been widely publicized among the people, and when the people have a preliminary understanding of God, it is not too late to concentrate on the detailed propaganda, if it is self-defeating, it will arouse the disgust of the people!" ”

"Nayi Dadu Governor ......" John Tang has been a missionary in Xining and has always relied on Li Zicheng, and this time is no exception.

"You first let Xining prepare more missionaries, enter Longyou as soon as possible, and once the time is ripe, then concentrate manpower and publicize it widely," Li Zicheng took a sip of tea and said lightly: "I urgently recruit you to Longyou, in addition to discussing missionary matters, there is another matter that needs your help!" ”

"Oh? What is it? Let's see if I can help the Grand Duke! John Tang knew that there was no hope for the time being, and his mood immediately calmed down.

"Last time I sent you a letter asking you to build a bridge over the Yellow River......"

"Build a bridge over the Yellow River?" Tang Ruowang was immediately deflated, "The Metropolitan Governor is really too whimsical, the Yellow River is so wide, and there are many canyons on both sides, which are unfathomable, even if it is a ferry, it is several zhang deep, where can I find such a long tree as a support?" He kept shaking his head and muttered, "It's hard, it's hard, it's so hard!" ”

Li Zicheng had never seen Tang Ruowang so depressed, and he seemed to be unbearable, but in order to speed up the speed of passage, building a bridge over the river was a hurdle that he couldn't get around, and sooner or later he would have to make the trip, so he tentatively said: "Building a wooden bridge over the Yellow River is naturally more difficult, but what if it is to build an iron bridge?" ”

"Iron Bridge?" Tang Ruowang's eyes flashed with a light that was not easy to understand, and he squinted his eyes and thought for a moment, but said, "Does the Heavenly Mandate Army have enough pig iron?" If you have enough pig iron, you can give it a try! ”

"It's good if it's possible," Li Zicheng smiled mysteriously and said, "This time I come to Longyou, I will let you see a new kind of thing, which may be more effective than steel!" ”

"New things? What is it? Can bridges really be built? Tang Ruowang's eyes widened, and he looked ashamed to ask, but he had already seen Li Zicheng's tricks, and in front of Li Zicheng, he always had the mentality of learning.

"You don't understand, we leave in the afternoon, and we should be able to arrive tomorrow before dinner, and if something goes well, you'll see this kind of thing soon."

Just as Gong Mingguang came to talk back, Li Zicheng diverted the topic and said, "Mingguang, how is it, have you measured the temperature of boiling water?" ”

"Back to Dadudu, the temperature of the boiling water is 90 degrees, just right here!" Gong Mingguang pointed to the scale on the thermometer and gestured to Li Zicheng.

This thermometer made by John Tang has already indicated the scale with Arabic numerals, and Li Zicheng can understand it at a glance, but when he heard that the temperature of boiling water is only 90 degrees, he couldn't help frowning, it seems that the accuracy of this thermometer is really not very good.

How can I correct the temperature?

In Li Zicheng's memory, there are two temperatures that are fixed, except for the temperature of boiling water, which is 100 degrees, and the other is the mixture of ice and water, and the temperature is zero.

Thinking of body temperature, the body temperature of a person is relatively constant, generally at 37 degrees, although only the temperature of the armpits, the base of the tongue, and the rectum are stable at this temperature, but now it is autumn, and the temperature of the outside world is not much different from the body temperature, even if the fingers and skin are exposed in the air, the temperature will not drop too much.

Li Zicheng rubbed his hands and felt a little warm, so he covered the thermometer bubble with the palm of his hand, waited for the mercury inside to reach a balanced state, and noted the position of the mercury liquid level, "Mingguang, the scale here represents thirty-five degrees, and the temperature of boiling water is one hundred degrees, and the distance in the middle is sixty-five degrees, according to this distance, recalibrate the thermometer!" ”

"The Governor ......"

Li Zicheng felt that he was speaking too fast, and he used professional terms that only he could understand, so he had to be patient and explain carefully, until Gong Mingguang completely understood, and then let him go down and remark the scale.