On the sixteenth day of the first lunar month, the people began to work for more than a year, and in the farmland outside the city, the people who weed and fertilized were busy with the work in their hands, and at the same time compared their crops with the neighboring farmlands, whether they were happy or sad, or sad or happy, and many children also played in the cold wind......

The various yamen and offices in Lanzhou City also started the first time of the new year, the first day of work.

Lanzhou Primary School, located in the Xincheng Science and Education District, is now renamed Lanzhou No. 1 Primary School, young students are carrying school bags, and peers, teachers say hello, at the same time, located in the old city residential area of Lanzhou No. 2 Primary School, Lanzhou No. 3 Primary School, also opened on the same day, Chen Qiudie, Mu Sirong as the principal of these two schools.

Li Zicheng did not attend the opening ceremony of the school, but took his own soldiers to Lanzhou High School and personally visited the principal Wang Zheng.

Yesterday, Jiang Chen told him that there was no progress in the grinding machine that Wang Zheng was researching, and Li Zicheng wanted to see it on the spot.

The grinding machines of later generations have power systems, and in this era, it is still early to the power system, did you mislead Wang Zheng?

Lying in bed at night, he was still thinking about the grinding machine, and when he heard Sun Mengjie talk about the stone grinding, it suddenly became clear: In this era, there is no power, only machinery!

Automatic grinders, electric grinders, and power grinders definitely don't exist for the time being, and the only thing that is possible is a mechanical grinder!

Li Zicheng asked his soldiers to reveal their identities, which frightened the old man who guarded the door for a while, and stayed for a long time before kowtowing, and Li Zicheng had already gone far.

After entering the gate, first turn right for a while, then walk along the wide avenue next to the rockery, and soon turn right again, almost to the southwest corner, there is a science museum specializing in scientific research.

Li Zicheng quietly entered the science museum, glanced sideways, and found that Wang Zheng was busy sweating profusely, Wang Yongchun and an unknown young man were pulling a stick like an erhu bowstring, and they were sweating even more.

It is estimated that he is testing the grinder, Li Zicheng said lightly: "What is Mr. Wang busy with?" ”

Wang Zheng raised his head at this time, his eyes left the work in Wang Yongchun's hands, and when he saw that it was Li Zicheng, he hurriedly bowed to the ground, "Damn, damn, I don't know that the majority of the governors are ......"

Wang Yongchun and the unknown young man hurriedly threw away the work in their hands, knelt down on their knees, but found that the direction was wrong, kneeling a few steps, facing Li Zicheng, and bowed to the ground, pouting his buttocks.

"Mr. Wang, get up quickly, you guys get up too," Li Zicheng took two steps forward, helped Wang Zheng up, and took out a sweat towel to wipe the sweat stains on his face for him, "Mr. Wang, is this an experimental grinder?" ”

"Thank you, Grand Duke!" Wang Zheng hurriedly took the sweat stains and wiped them himself, then folded them to the four corners, carefully returned them to Li Zicheng, and sighed: "I really live up to the expectations of the Metropolitan Governor, this grinder ......" He spread his hands, looking helpless.

Li Zicheng walked towards the grinding machine made by Wang Zheng, and after a closer look, the grinding machine looked a little strange, on a round wooden stick, two discs were fixed up and down, the top was a small and thick stone plate, and the bottom was a large and thin wooden plate.

On each side of the wooden plate, almost opposite, there is an iron nail, which is fixed with a leather rope, and the two ends of the leather rope are attached to the back of a bamboo bow.

The round wooden rods that hold the two discs are themselves semi-fixed on a wooden frame and can be rotated.

Li Zicheng held the back of the bamboo bow in his hand, followed the example of Wang Yongchun just now, and pulled hard, and the round wooden stick turned.

I see!

Li Zicheng admired Wang Zheng's mind from the heart, on the whole, this is a kind of wheel, which belongs to a kind of labor-saving lever, the big wooden disk below is the power arm, and the small stone plate above is the resistance arm.

When using, pull the back of the bow hard to drive the log stick to rotate, and the stone plate on it also rotates, and the edge of the stone plate can be polished on the instrument.

From the principle point of view, this kind of grinding machine is basically formed, and Wang Zheng is worthy of being the most proficient in machinery in Daming.

Li Zicheng also admires that there is no shortage of talents in Daming, the key is how to respect talents and mobilize the enthusiasm of talents, "This is the grinding machine made by Mr. Wang?" Isn't it a success, what does Mr. Wang sigh for? ”

"Dadu Dudu, this grinder is useless," Wang Zheng smiled bitterly, "My subordinates have tried many times, and when I polished, the loss of the small disc on it was too serious, and my subordinates tried iron and copper plates, and the effect was not ideal...... It still doesn't seem to work well! ”

"Oh?" Li Zicheng measured, so it seems that the grinder has been successfully developed, and Wang Zheng is just improving the service life of the grinder, which is an improvement and belongs to another technology!

He asked Wang Yongchun to operate the grinding machine and polish the iron to see the actual effect.

Wang Yongchun and the young man each pulled a section of their arched backs, advanced and retreated together, and polished a section of the sample iron pipe.

The stone plate rotated rapidly, grinding on the iron pipe, making a screeching sound, and the stone chips were accompanied by iron filings, and the dust raised a smoke screen......

After a while, Wang Yongchun stopped, and the log stick turned for a moment and slowly stopped.

Wang Zheng squatted down, pointed to the edge of the stone plate, and said: "Governor, please see, a notch will soon appear on the edge of the stone plate, and his subordinates try to increase the thickness of the grinding plate, but the thicker the grinding plate, the more difficult it is to control and the subtleties are difficult to master......

Li Zicheng looked at the edge of the grinding plate, and sure enough, as Wang Zheng said, a shallow notch appeared on the edge of the stone plate, how long has it been...... If it is used in a factory, it needs to be polished for a long time and on a large scale, and such a stone plate obviously does not meet the requirements.

The iron plate and copper plate mentioned by Wang Zheng are not hard materials themselves, and the effect will only be worse.

This is a problem in material science, now there are no synthetic materials, you can only find them from nature, Li Zicheng tried his best to think, and his heart suddenly moved.

The hardest material in nature is diamond, which is widely used in the cutting industry in later generations, introduced in middle school textbooks, and can also be seen in daily life, glass knives that carve glass, drill bits of drilling machines, etc., are most commonly found on women's ornaments - diamond rings, diamond necklaces!

The material problem was basically solved, and Li Zicheng was a little determined, but he didn't know what the name of diamond was in this era, and whether it had been published.

He looked for diamonds from the textbooks of later generations, and diamonds are also known as diamonds......

Pregnant! Li Zicheng was overjoyed, and he suddenly thought of a proverb: "No diamond diamond, no porcelain work"!

It turns out that the proverb is still so useful! From this proverb, it can be seen that not only has diamond diamonds been available for a long time, but has also been used to polish porcelain, Wang Zheng is an expert in mechanical convenience, and may not know about the production of porcelain.

Li Zicheng stood up, sorted out his thoughts according to the characteristics of this kind of grinder, and then looked at Wang Zheng's white hair like snow, and said lightly: "Has Mr. Wang ever heard of diamond diamonds?" ”

"Diamonds?" Wang Zheng was stunned for a moment, but quickly reacted, grabbed Li Zicheng's arm, and shouted excitedly: "The Metropolitan Governor said that the diamond is set on the grinding plate?" ”

"Daddy......" Wang Yongchun saw his father's gaffe and hurriedly shouted.

Wang Zheng let go of his hand, but his eyes were distracted, and his whole body slowly relaxed, "My subordinates understand, I understand, I still have the governor of the capital...... Thank you, Governor! He faced Li Zicheng and bowed to ninety degrees.

Li Zicheng understood Wang Zheng's mood, and he couldn't understand it for many days, once he found the answer, how could that kind of mood be expressed in words? At that time, in his eyes, he couldn't see anything but the answer, not even the emperor......

This kind of extreme joy needs to be shared with others, especially those who are insiders, so Wang Zheng, who has always been rigorous, lost his temper.

This is the real researcher, and the money will not be changed!

Wang Zheng knows the diamond diamond, and he knows the magic of the diamond diamond, and he is relieved of his achievements, so he still has the heart to worry about his gaffe? Once the grinding machine is successfully developed, it can be used in a wide range of fields, at least the firearms bureau can use it when polishing the barrel and barrel, saving time and cost!

The take-off of the British Empire is based on the steam engine, perhaps the take-off of the Central Empire is thanks to a small polishing machine, which may not directly make the Central State take off, but can make the Central State see the value of science and technology......

......Seeing Li Zicheng's strange expression, he thought that Li Zicheng was angry with him, and he was very frightened in his heart, Li Zicheng was not only the governor of the Mandate of Heaven, but also the pope of Catholicism......

"Haha," Li Zicheng realized that he was distracted, perhaps his excitement was no less than that of Wang Zheng at that time, "How about it, does Mr. Wang think the diamond can work?" ”

"It will definitely work," Wang Zheng was relieved when he saw that Li Zicheng didn't care about his gaffe just now, "This diamond diamond matter will be handed over to his subordinates......"

"This is nature, and only Mr. Wang can produce a real grinder!" Li Zicheng smiled and arched his hand to Wang Zheng, "Then please sir!" In order to show intimacy, the "king" was omitted.

"My subordinates are ashamed...... Wang Zheng hurriedly returned the salute, "If it weren't for the Metropolitan Governor's suggestion, my subordinates probably wouldn't have been able to think of it for the rest of their lives...... My subordinates are really confused......"

"Sir, don't be too modest, except for Sir, I'm afraid that no one in this world can make a grinding machine," Li Zicheng laughed: "I'm just icing on the cake!" ”

Wang Zheng sighed: "The Metropolitan Governor is the finishing touch!" ”

Li Zicheng smiled and waved his hand, and put forward some suggestions: enlarge the wooden disc at the bottom of the round wooden stick, which will be more labor-saving, and when operating, one person can complete it; In addition, fixing the iron and copper pipes that need to be polished, or allowing the iron pipes and copper pipes to rotate, can also increase the speed of grinding.

Wang Zheng thought for a moment, nodded yes, but said: "The wooden plate at the bottom of the round wooden stick can't be too big, it's inconvenient to use......"

Li Zicheng admires the spirit of scientists, science is not human feelings, and there can be no ambiguity, "Mr. is right, how big it is, it needs to be based on actual operation," but he also made a suggestion: "The grinding machine is not one, but a set, the first is to polish and form, at this time, the speed can be faster, but in the later stage of grinding, it needs to be carefully crafted, and it should be replaced with a small and convenient grinding machine!" ”

Wang Zheng was shocked: "My subordinates really didn't expect that the Metropolitan Governor deserves to be the Pope......"

"Haha," Li Zicheng laughed, "This grinding machine has been formed, and with a little improvement, it can be put into use, since it is made by Mr. Wang, it will be called 'Wang's grinding machine'!" ”

"No, no, never," Wang Zheng hurriedly bowed down and said: "This grinding machine is the merit of the Grand Governor, and his subordinates are just doing it according to the will of the Grand Governor...... At the most critical juncture, it is still the hand of the Grand Governor, or it is named by the Grand Governor! ”

"Mr. doesn't need to be polite, I'm just moving my mouth, Mr. is hard work, since Mr. agrees to be named by me, I will name it 'Wang's Grinder'!"

He originally wanted to give some rewards, in this era, there is no "patent" said, but people who work hard should always get the corresponding reward, however, considering that Wang Zheng is not short of money, his current invention and creation, since it is the case of receiving a fortune, it is a service invention, from the perspective of the law, the exclusive right of technology belongs to Lanzhou High School, and it will be abandoned, at most in the future scientific research funds are more relaxed.

Wang Zheng saw that it was difficult to shirk anymore, so he hurriedly bowed to the ground: "My subordinates are ashamed of the governor......

"Get up!" Li Zicheng helped Wang Zheng up and said with a smile: "This is the honor that Mr. deserves, and you must not be too humble, otherwise, I have a good idea, and it is not good to work Mr. again!" ”

Wang Zheng didn't care about the dust on his knees, but said, "What new ideas does the Grand Governor have?" ”

"Let's go, let's talk in the house!"

"Yes, yes, look at me old and confused......" Wang Zheng hurriedly led the way in front, led Li Zicheng into the inner room, and asked Wang Yongchun to serve tea.

Li Zicheng sat down on the wooden chair, took out a thick stack of white paper from his arms, and said with a thick face: "This is a machine designed by me in my spare time, temporarily named the steam engine, sir, take a look......"

Wang Zheng didn't speak, opened the drawings, and looked at them for a long time, but he didn't have a clue, so he frowned and said, "The Metropolitan Governor...... It's too delicate to be ...... for the next moment."

"Sir, don't worry," Li Zicheng said: "This thing is indeed too delicate, it can not be completed in a short time, if Mr. has time, you might as well try to see, if there is a difficulty, I can also help you refer to it...... To be honest, sir, although I know that the steam engine is very profitable, I have to make ...... But there is nothing to be done! ”