Technology dominates the Three Kingdoms

Chapter 122 [Department of Improving Agriculture]

"abacus?"

Chen Gong looked at it curiously.

"That's right, it's the abacus. You can take a look and feel it first."

As he spoke, Lu Bu picked up an abacus and handed it to Chen Gong.

Lu Lingqi who was standing by said excitedly: "Sir, this abacus made by my father is really amazing. Using it to do arithmetic is much simpler."

The abacus is about twelve inches long, six inches wide and one inch thick.Wooden, rectangular, a string of equal number of wooden beads are evenly arranged in the frame, and there is a beam in the middle to divide the beads into upper and lower parts.

The beads run through the straight column and can be moved up and down along the thin rod. There are 11 levels. In the middle level, there are 2 beads on the beam, each with 5 beads, and 5 beads under the beam, each with 1 bead. There are 77 beads in total.

Moreover, on the top of each upright column of the abacus, Lu Bu ordered people to engrave counting units such as: one, ten, hundred, thousand, ten thousand, one hundred thousand, million, ten million, billion, etc., for easy calculation and reading.

This kind of abacus Lu Bu made it into an abacus for positioning. Because there are counting units such as one, ten, hundred, thousand, and ten thousand, each column in the abacus has a fixed number of digits.

If there is no fixed number unit, then the abacus can be carried out by taking any straight column in the abacus, which is simple and arbitrary.

The reason why Lu Bu engraved counting units such as one, ten, hundred, thousand, and ten thousand is to make it easier for Lu Lingqi to teach Lu Lingqi, and at the same time combine these counting units with the abacus.

Holding the abacus in his hand, Chen Gong carefully observed and figured it out, and found that Lu Bu's so-called abacus seemed to be transformed from the existing abacus.

Chen Gong often uses small iron marbles in a bronze plate, which is also similar to an abacus, and iron marbles are used for measurement and calculation.This is because this kind of calculation chip is a bit cumbersome, but the abacus in the hand is too light.

"Master, can you tell me how to use this abacus?"

Chen Gong bowed his hands and begged.

After that, Lu Bu briefly explained how to use the abacus for addition and subtraction. As for the multiplication and division of the abacus, Lu Bu really didn't know much about it, so let others figure it out.

After about a stick of incense, Chen Gong, who already knew how to count, got started very quickly, far surpassing Lu Lingqi.

In the main hall, the sound of planning abacus can be heard endlessly.Chen Gong and Lu Lingqi's faces were full of excitement, they were fascinated by the abacus.

Combining Arabic numerals and abacus, the efficiency of calculation is not a general leap.These two things made Chen Gong shocked, excited, and excited.

In less than an hour, Chen Gong had basically mastered the principles of addition and subtraction with the abacus.Then he borrowed five abacus from Lu Bu, planning to let his subordinates also learn to use this kind of abacus.

Since the abacus was easy to make and cheap, Lu Bu didn't care and gave it to Chen Gong directly.Chen Gong, who got the five abacus, was so excited that he hurriedly resigned and left in a hurry.

"Lingqi, are you tired? If you are tired, take a rest."

Lu Bu came to sit next to Lu Lingqi, looked at Lu Lingqi who was concentrating on his abacus, and said softly.

This kid, seriously, is quite hardworking.Lu Bu gave her many hundreds and thousands of addition and subtraction problems, and asked her to use the abacus to type out the results, and then check the results with Lu Bu.

Lu Lingqi, who has never been in touch with calculating calculations, needs a proficient process in calculating calculations, otherwise the speed is not as fast as her calculations with pens.

Pen calculation is one of the basic calculation methods that Lu Bu handed over to Lu Lingqi and Chen Gong before. Using Arabic numerals, write out the calculation format on the bamboo slips, and perform calculations, which can solve the problem of addition, subtraction, multiplication and division between multiple digits.

"Father, I'm not tired. If you have something to do, go and do it. I can do the questions myself."

Lu Lingqi was still thinking about it, and replied casually.

Lu Bu really has something to do, and right now he has to hurry up and complete the two tasks given to him by the system. One is to establish five new counties, each with a population of no less than 1000; the second is to establish two colleges, one The School of Medicine and the School of Agriculture each have no less than [-] teachers and students.

These are really two complicated and difficult tasks. Lu Bu has issued a notice before and posted it in the three counties and counties.

The main content of the announcement: first, the announcement of the establishment of the Medical Association; second, the announcement about the establishment of [Hua Shen Medical College] and [Sinong College]; third, about the establishment of five new counties, and those who are willing to move will receive Rich remuneration, and also listed the remuneration, such as: money and food, cultivated land, farm tools and cattle, tax incentives and so on.

Lu Bu returned to the study, ready to sort out the next thing to do.In addition to the two tasks to be completed, he also felt that there was a more important thing to do.

That is to make new paper, and to make movable type.With these two things, many things will be much more convenient, for example: the academy recruits students, and with enough books to attract them, I believe more people will be willing to come.

In a blink of an eye, afternoon arrived.

It was already a gray day, but now it was raining lightly.

Lu Bu was busy in the study, Lu Lingqi returned to her room and was still practicing the abacus, Chen Gong and the officials under him were using the previous accounts to calculate on the abacus, everyone was very excited.

The appearance of Arabic numerals, ninety-nine multiplication table and abacus shocked the officials, and it was even more unbelievable when they learned from Chen Gong that the three things came from the general Lu Bu.

A great general should be good enough to lead troops into battle.They were surprised and worried that they were also proficient in arithmetic.Because, in the future, it will be very difficult to hide some things when doing accounts.

Those civil servants are basically people from the three counties, and they are mainly from the gentry.Lu Bu disposed of the county magistrate, county magistrate, and county lieutenant in Sihui County of Nanhai County, and confiscated all the property of the three families.

This news made the gentry of the three counties tremble with fear, and all of them shrank, unwilling to easily offend Lu Bu, the great general, otherwise they would inevitably suffer the wrath of thunder.

Xue Ren, Liu Xi, and Cheng Bing were helplessly working under Chen Gong. They were still supervised, and they couldn't leave Panyu City without Lu Bu's permission.

In Lu Bu's study, housekeeper Luo Kun knocked on the door and came in.

"General, people from the [Agricultural Department] have arrived and are waiting outside the mansion," Luo Kun reported.

"The people from the Department of Agriculture are here?"

It was only then that Lu Bu remembered that he had notified Qin Yun, a small farmer of the [Agricultural Department], and Jia Xu, the Zuo Cheng of the Agricultural Department, to move the headquarters of the Department of Agriculture to Panyu City, Nanhai County.

After thinking about it again and again, Lu Bu still thinks that it is more appropriate to focus on Nanhai County in Jiaozhou.Because the terrain of Nanhai County is flatter, it is close to the sea, and it is downstream of Yushui, so there is a lot of room for development.

According to the original plan, after Lu Bu planned to move the headquarters of the [Agriculture Department] to Panyu City, he would further improve the internal structure of the Agriculture Department so that he could take on bigger tasks in the future.

"Arrange them to wait in the main hall. General Ben will be there later." Lu Bu prepared to gather his thoughts before going to see the people from the Department of Agriculture.

(End of this chapter)