Liu Hong couldn't believe it. How could you, Fei Qian, know this thing at such a young age? Besides, I just made this, how could Fei Qian know about it? Is there really such a thing as a person who is born smart?
Fei Qian looked at the "abacus" and finally understood why he always felt an awkward sense of familiarity. The familiarity was because he had learned this calculation method when he was in elementary school. The awkward thing was that the abacus held beads one by one.
Put it into the middle layer of grids, instead of stringing a wooden stick between the beads to move them up and down.
"Why not string them together with wooden sticks?" Fei Qian thought so and said it casually.
"What stick to use?" Liu Hong asked Fei Qian in confusion. Is there any shortcomings in this abacus that I worked so hard to come up with?
"This..." Fei Qian hesitated a little. Could it be that I ordered some strange technology tree?
When did the ancient Chinese abacus take shape? Or was it earlier in the Tang Dynasty? Anyway, it must have been around in the Song Dynasty. I remember that in the painting Along the River During the Qingming Festival, there are abacuses placed on shop counters. The form is basically the same as modern times.
It shouldn't have any impact if I count out this abacus now, right? Fei Qian thought to himself, but he had said it himself and couldn't take it back, so he simply asked for a piece of paper and drew the abacus for future generations three times and two times.
.
Liu Hongkan waited for Fei Qian to finish the painting and grabbed it before Cai Yong. He kept nodding and praising, "Yes, why didn't I think of it... In this way, I don't have to worry about losing it. Besides,
The pearls of the same pillar, the heaven and the earth are added to the human body, tsk tsk...wonderful! Wonderful!"
"Heaven and earth increase in man" actually means that the top row of beads is called Dzi beads, and the beads at the bottom are called Earth beads. When calculating, it is Dzi beads plus Earth beads, which coincides with the three talents of heaven, earth and man, so it is said like this.
However, Liu Hong also found something he didn't understand. Pointing to the abacus drawn by Fei Qian, he said: "Why do we increase the number of Dzi beads to two and the earth beads to five?" - If modern abacus uses decimal system, in fact, the top bead and
The bottom one was not used, but Fei Qian drew it directly in the form of a modern abacus without much thought.
Fei Qian didn't know why the modern abacus added these two unused beads, so he said: "Five beads on the lower part add one, and two beads on the upper part make it easier to calculate."
"The lower beads are five and one is in, the upper bead is two and..." Liu Hong nodded and then shook his head. Fei Qian didn't know whether Liu Hong agreed with him or not.
In fact, Fei Qian is not a professional after all, and he does not know the development history of abacus, so he naturally does not know the evolution of abacus.
In the development process of the abacus, it gradually spread from a small number of people who studied mathematics to a large number of people who need to deal with numbers, and a large part of them are businessmen. Moreover, in ancient times, there were not only decimal calculation modes, but also hexadecimal calculation modes.
For example, in ancient times, one pound was sixteen taels, etc. Therefore, in order to facilitate hexadecimal calculation, merchants added one heaven and earth beads to the ancient abacus. In this way, the total number of heaven and earth beads equals fifteen, which can be used
As for decimal, you can also use hexadecimal.
Liu Hong stared at Fei Qian with sharp eyes. If he just casually said that he wanted to accept Fei Qian as his disciple, now he really has this intention. He is also good at arithmetic, and he improved in just a moment.
It took a long time to figure out the plan, but how could it be that Old Man Cai got the better of it?
Cai Yong also saw something coming from the side. After thinking about it for a while, he simply said: "Zi Yuan is my new recruit. Although he has already entered the school, it is not an auspicious day. It coincides with the autumn classes of Taixue tomorrow. Let's just salute him together."
Yuan Zhuo, if you have some free time, would you like to pay homage to me?"
In the Han Dynasty, Taixue usually admitted a batch of new students in spring and autumn, which are the so-called spring classes and autumn classes. Previously, Taixue had experienced the disaster of the Party and had been closed for a period of time. Later, Emperor Ling of the Han Dynasty rehabilitated the Party and naturally reopened
Taixue.
Liu Hong looked at Cai Yong, nodded, sighed, and immediately said: "Of course he will come." - Now there was no hope at all. This guy was Cai Yong's man and couldn't be snatched away.
It’s just that, hehe——
When Cai Yong saw that Liu Hong had agreed, he didn't say anything more and told Fei Qian to go get ready. Don't waste time tomorrow and let Fei Qian go back first.
When Fei Qian left the Cai Mansion, he still felt a little unconvinced. It had only been a few days, but it seemed that he had been upgraded?
Just now, Cai Yong said he was going back to prepare. What should he prepare? Naturally, it is the apprenticeship ceremony. This means that as long as Fei Qian performs the apprenticeship ceremony at Taixue tomorrow, he will get rid of the word "name".
Became Cai Yong's true disciple.
This happiness really doesn’t come suddenly...
However, Fei Qian suddenly thought of a question and couldn't help but feel dizzy. Originally, he was planning to leave Luoyang in a few days on the grounds of studying in Jingxiang, but now he was accepted as a disciple by Cai Yong. If he mentioned this reason, it would become a joke.
Then how can I leave Luoyang?
If you can't leave, how can you save your life in this turmoil?
It’s true that plans can never keep up with changes. What should we do?
******************
In fact, Fei Qian is not the only one who has troubles now.
Yuan Wei is one of them. He was also very troubled after Yuan Shao resigned and ran away.
Yuan Shao's departure is nothing less than bringing the dispute between the Yuan family and his descendants to the world. In fact, this matter is inevitable for every family, but most of them are digested silently within the family. Very few actions like Yuan Shao's move make the whole world famous.
Everyone knows it.
And the most important thing is that it has been taken advantage of.
Dong Zhuo actually gave that traitor son the title of Bohai Governor! This made it clear that the two sons of the Yuan family were going to fight. It was a pity that he, Yuan Wei, could not say no.
On the surface, the Yuan family has always put the world's commonwealth first, and is a sign of Qingliu. Now, in the name of the imperial court, Dong Zhuo said that although Yuan Shao had minor faults, he could still be used, so he worshiped the governor of Bohai to protect the good people, eliminate banditry, and make up for his faults.
…
All aspects are blocked, what else can Yuan Wei say? Yuan Shao is not allowed to serve as the prefect? What is the reason? Is it because the children of the Yuan family are incompetent? Is it because he does not want to serve the court? Or is he not allowed to make up for his mistakes? Or is he going to issue an arrest warrant for Qianli immediately?
Chase?
Although Yuan Wei really wanted Dong Zhuo to pursue him for thousands of miles, the laws of the Han Dynasty stipulated that it was reasonable and legal for relatives to hide each other. Could it be that Yuan Wei could go against the laws of the Han Dynasty and really kill his relatives?
In the Han Dynasty, killing one's relatives for the sake of justice was really not a good word. Did the Yuan family want to lose its reputation? So Yuan Wei had no choice but to hold his nose and admit it.
However, Yuan Wei was unwilling to let Dong Zhuo and Li Ru mix sand into Yuan's house, so he ordered his servants to summon Yuan Shu.
Since we can no longer hide it, let’s just put it on the table openly! Let everyone in the world see the courage of the Yuan family, the fourth generation and third prince!
