Next, He Zhiyuan asked again: "Do these abandoned coal kilns have owners?" If you buy it, how much silver does it cost to build a kiln? ”

"Most of the old ones have no owners, and in recent years there are owners, but the land of the abandoned kilns without owners is under the jurisdiction of the government. Such waste kilns are worthless, the kiln with the owner is more than ten taels of silver, and the owner is cheaper, as long as you negotiate with the Yizhou government, a few taels of silver can buy a kiln, but these waste kilns are useless, that is, filling the soil and planting the land does not grow crops. After Boss Sun finished speaking, he suddenly felt that the prospective owner in front of him seemed to be very interested in these waste kilns, and he asked suspiciously: "He Gongzi, you don't want to buy these waste kilns, right?" ”

He Zhiyuan smiled: "With this idea, of course I have to buy it so cheaply." ”

"But ......" Boss Sun was completely stunned this time, and his mood fell from the top of the mountain to the bottom again. It turned out that the prospective owner in front of him was going to buy these waste kilns and play, not to dig coal at all. Ay! I don't understand the world of rich people.

Seeing Boss Sun's helpless bewilderment, He Zhiyuan said to him again: "Boss Sun, don't worry, you have to buy a waste kiln, and a good kiln that can dig coal also has to be bought." After buying these hundreds of waste kilns, I will be the largest coal boss in Yizhou, and you will be the largest coal shopkeeper in Yizhou. ”

Hearing this, Boss Sun didn't have the slightest joy, and thought to himself, the owner is still too young. He didn't know anything about coal at all, and he might regret it after he went to the coal mine to see it.

Then He Zhiyuan said: "Boss Sun, you continue to introduce Yizhou Coal Mine." What else do you know? ”

Boss Sun didn't have much interest at this time, but the prospective owner is also the owner, since people let him introduce, let's continue to introduce. So he continued: "The quality of Yizhou coal is not very good, and the good quality coal kilns have become waste kilns. There is a lot of gangue in the coal mined now, so the coal transported must be selected first before it can be sold to the outside world. ”

"What is the cost of mining a hundred pounds of coal now?" He Zhiyuan finally asked a most critical question.

Boss Sun said with a smile: "In coal mines, the cost is not calculated by catties. In the coal mine, it is divided into shearers, back coal workers and coal preparers, and the shearers at the bottom of the kiln can earn five cents for each stone of coal mined. A stone of coal from the bottom of the kiln is generally ten to fifteen cents according to the depth of the mine, and a coal preparer selects a stone of coal for eight cents. Coupled with the government's tax silver, the maximum cost of each stone of coal mined is less than 40 wen, and a stone of coal is about 150 catties. The coal boss sells us generally 80 to 90 wen per 100 catties, so that the coal boss is at least half of the profit. ”

"That's not much, it's only half the profit." He Zhiyuan blurted out.

As soon as the words came out, he himself regretted that since he came to this world, every business I did was ten times less profitable. Now accustomed to high profits, somewhat inflated.

Boss Sun retorted: "It's a lot, if anyone has a small coal kiln in Yizhou, they have an income of two or three thousand taels of silver a year, and they are all on top of several small landlords." ”

This is a typical ass decision head, everyone looks at the problem from a different angle, and the conclusions drawn are definitely different.

Hearing this, He Zhiyuan didn't refute him again, smiled, and then asked: "Boss Sun, how much coal can be dug in these small coal kilns in Yizhou a year?" ”

"No one has calculated this, I estimate that there are always tens of millions of catties." Boss Sun replied vaguely.

"Too little."

Boss Sun said in his heart, this He Gongzi is so big. Tens of millions of catties are too little, and it can't be sold at half of the coal yard, so what's the use of a large output. But this time Boss Sun didn't refute again, and he smiled and didn't speak again.

In fact, in this era, no one knows except He Zhiyuan

Dao, this extremely cheap fossil energy contains the power to change the whole world!

Then, He Zhiyuan asked: "I heard that there are many more coal mines in Yanzhou than in Yizhou. Are you familiar with that over there? ”

In later generations, Yanzhou Coal Mine was the largest coal producer in Shandong Province, and the coal reserves here were not at all an order of magnitude compared to Yizhou.

"I also know a coal boss in Yanzhou, and the coal there is much better than in Yizhou, but the road is too far away and the transportation is inconvenient." Boss Sun replied.

"Isn't there a lot of permeable coal kilns over there?"

"Yes, all the same. This kind of permeable coal kiln is everywhere, not only in Yizhou. ”

"Okay, then you can help me inquire, and if possible, I am going to buy the next batch of these coal kilns."

As soon as these words came out, Boss Sun was shocked again. Could it be that this prospective proprietor is addicted to wasting money? Yanzhou is full of small coal kilns, not to mention tens of thousands, there are always thousands. According to a ten-tael of silver, that is also tens of thousands of taels of silver.

But who made this prospective proprietor rich, the silver was in the hands of others, and he could spend it as he wanted. So Boss Sun was shocked and shocked, but he happily agreed.

After that, He Zhiyuan and Boss Sun agreed to go to Yizhou Coal Mine the day after tomorrow, paid the coal silver, and Boss Sun said goodbye and left.

Back at home in Hejia Town, the people who stayed here had already prepared a meal and waited for the young master to come to eat.

After having lunch at home, He Zhiyuan and Yan Jihai immediately went to the Institute of Physics of the Juzhou Academy of Sciences in the east of the city. He Zhiyuan has not been here for more than a month, and the appearance of the Academy of Sciences has undergone great changes, first of all, there are many more houses here, and there are many more institutions, some are responsible for material procurement, some are responsible for cleaning, and there is also a public canteen and an account responsible for silver taels. It looks like that.

Before entering the gate of the Physics Research Institute, I heard the screeching sound of a lathe cutting iron inside.

When Yan Jihai heard this voice, he frowned and asked, "Master, what is this physics institute studying, why is there such an ugly sound?" ”

He Zhiyuan said seriously: "The research in this is as important as food, this thing is called the steam engine, with which manpower will be completely liberated, and it will make earth-shaking changes in this world." ”

"Steam engines? The person who studied it must have been a very knowledgeable person, right? ”

"He is your senior brother, called Wang Zhixue. Ever heard of steam cannons? That's what he studied. ”

"I've heard that when I was in the yamen, I heard from the office of the barracks. It is said that its power is no less than that of the general's cannon, and it has made great contributions in the suppression of bandits. It turns out that my elder brother researched it. Yan Jihai said enviously.

While talking, the master and apprentice came to the courtyard. More than a dozen people in the courtyard were busy, and due to the loud noise, none of them noticed anyone entering. He Zhiyuan said in his heart, this is not good, although this place is remote, but there is still a sense of confidentiality. This place is the place where the high-tech research and development of the entire Ming Dynasty is located, and if the technology is stolen, the loss is immeasurable. Go back and let Xu Tangyi send Ding Zhuang with a small flag to protect here.

He Zhiyuan stood in the courtyard and coughed heavily, and everyone found He Zhiyuan and their master and apprentice.

Wang Zhixue saw the master coming, and hurriedly stopped the guy in his hand. said: "Master, why are you here?" ”

Nonsense, why can't I come, this straight man of pure science just doesn't like to listen, but He Zhiyuan is used to it, and he doesn't care about him here for a long time.

Yes, he replied with a smile, "Come and see your research progress today." Then he said to Yan Jihai beside him: "This is your senior brother Wang's learning, hurry up and meet your senior brother." ”

Two brothers

After seeing the ceremony, Wang Zhixue said a little embarrassedly: "Master, I'm afraid I'm going to disappoint you this time, we have made little progress in the past month." We machined more than a dozen cylinders, all of which failed. ”

He Zhiyuan comforted: "It's okay, it's normal." I have long said that the steam engine is a complex machine with a system, and it does not come to fruition in three or five months. If you can develop a qualified steam engine in five years, it is very normal, if you say that it will be completed in one year, I don't believe it. ”

Wang Zhixue said ashamedly: "Five years? If it hasn't been developed in five years, won't it make people laugh to death? ”

He Zhiyuan enlightened them and said: "Scientific research must endure loneliness and don't care what others say. In fact, in this process, you still have a lot of achievements, first invented bolts and nuts, and then invented lathes, this is progress. Why does machining cylinder block always fail? Did you find the reason? ”

"I found it, the precision between the cylinder and the piston is not enough, either too big or too small." Wang Zhixue replied.

He Zhiyuan only drew a simple sketch for him at the time, and he was not aware of the accuracy and coordination between the cylinder block and the piston at that time. It doesn't seem to have any problems with the sketches, but when you actually do it, you realize how difficult they are to process. If the piston is larger than the cylinder block, it cannot be assembled at all, if it is too small, it will leak steam, and in serious cases, it will not be able to push the piston movement at all. So it's a big and not a small problem.

In fact, the best way to solve this problem is to add a round rubber ring to the piston. But the rubber tree is still in the tropical rainforest of South America, and it has not yet spread to Southeast Asia at this time, so it is impossible to find rubber in the Ming Dynasty.

He Zhiyuan worked hard to search for rubber alternatives in his mind, and for a time he found that beef tendon, tung oil, Du swelling gum, soft metals such as copper, lead, etc. can replace rubber.

So He Zhiyuan inspired Wang Zhixue: "Actually, you are now a fan of the authorities." Why do you have to use one material to machine the piston? Try it a different way. For example, the outer sleeve of the piston is covered with a soft material with high elasticity, wear resistance and high temperature resistance. Wouldn't that solve the problem? ”

"Soft materials? Can you elaborate on that? When Wang Zhixue heard the master's suggestion, he immediately came to the spirit, and every time he encountered a problem, the master could always find a solution to the problem.

Ho further explains: "For example, the piston is covered with a layer of brass, or lead, tin and other metals that are easy to process. Another example is to wrap a layer of beef tendon on the outside of the piston, you can try all these methods, and you can always solve this problem. ”

He Zhiyuan woke up the dreamer with a word, and Wang Zhixue and Liu's father and son suddenly realized.

Seeing their excited looks, He Zhiyuan took another scoop of cold water: "There are still many problems after the development of the steam engine, even if this problem is solved, don't expect to be able to study it immediately." Today I ask you to quickly develop a simple steam engine, which can be developed as long as the sealing problem between the cylinder block and the piston is solved. ”

"A simple steam engine?" Wang Zhixue asked in surprise.

"Yes, this steam engine is specially used to pump water, and it is more accurate to call it a steam pumper. I'll draw a sketch, and you can develop it according to this meadow. ”

He Zhiyuan took out a pen and paper from the bag that Yan Jihai carried, and explained while drawing on a platform. He painted the early European Newmenco steam engine, a steam engine used specifically for pumping water from mines. Watt is the basis for the development of the famous Watt steam engine, also known as the universal steam engine. Instead of seeing steam coming out of a kettle as a child, as Watt said in his high school textbooks, he was inspired to eventually develop a steam engine. This is totally misleading!

(End of chapter)

The little people of the Ming Dynasty

The little people of the Ming Dynasty

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