Into Unscientific Chapter 130

  Chapter 130 Lao Su's Reasonable Brain Supplement

   After more than an hour.

  In a relatively remote courtyard.

  I saw this moment.

  Old Su was holding a short stick in his hand, and wrote "Hundred Surnames" on a black-painted wooden board with great interest:

   Zhao Qian Sun Li, Zhou Wu Zheng Wang.

after awhile.

   click—

  Perhaps because the writing was too hasty, the short stick broke at the sound.

  Old Su gave up, then turned his head, looked at Xu Yun with bright eyes, and asked in a hurry:

   "Xiao Wang, what is the name of this thing?"

  Xu Yun glanced at the short stick that was half used up by Lao Su, and he was glad that he made a few more sticks, but at the same time, he couldn't help but say:

   "The name of this thing is chalk."

   More than an hour ago.

  After Mr. Xie got everything together, Xu Yun officially opened his hands and picked up the simplest thing since time travel:

   Chalk.

  Chalk, this is a very common teaching tool in later generations, and the difficulty of self-made is also very low.

In the 21st century.

  Just knead the clay and talcum powder with water to form a dough, then put it in any tube and let it stand for a few hours, and a simple white chalk will come out of the oven.

  Although there is no such thing as talcum powder in the current Song Dynasty, there is still fat from pigs.

   After Mr. Xie got everything together, Xu Yun mixed lard and lime together, added water and kneaded it into a paste. .

   Then they are stuffed into the mold that made the syringe, and cooled by saltpeter—the crystal raw ice bought from the sour plum shop.

   Waited for less than an hour.

   A few simple chalks are ready.

  However, facing such an object with such a simple production process, Lao Su burst out with unprecedented enthusiasm.

  Since a quarter of an hour ago, he has been writing and drawing on the black lacquered board with chalk.

   Sometimes write poetry, sometimes draw circles and triangles.

  From an emotional point of view, he was even a little more excited than when he saw allicin and the generator.

  As for the reason for Lao Su's excitement, it is also very simple:

  Although he is a well-known contemporary master of physical medicine, he is actually a scholar through and through.

  He used to teach in the Academy, and after retirement, he set up a family education in his hometown of Jingkou, and became a teacher himself.

  So at the moment when he saw the chalk effect, Lao Su realized the combined value of this little thing and the blackboard:

   This is a set of human artifacts!

  Although the Song Dynasty's economy was quite prosperous, and the court also emphasized literature over military affairs, but in terms of teaching methods, the Song Dynasty was not much more advanced than other dynasties.

  Basically, it is a cramming education method in which the teacher recites and the students repeat the reading.

  In terms of writing, many elementary teachers will only tell you how to read the word, but they will not tell you how to write it—because there is no such tool as a blackboard.

  The closest thing to the combination of chalk and blackboard at the moment is something called an iron cone pen.

  It is ground from an iron pestle with a sharp tip.

  In life, it is mostly used for engraving seals and metal hard objects, and in class, it is combined with stone walls or wooden boards, and the teacher draws on it for teaching.

  Leaving aside the reading experience of students in this mode, it is a huge test for the physical strength of the teacher.

   Not to mention the sharp sound that such a sharp object will make when it comes into contact with the board. Specifically, you can think of the sound when your fingernails slide across the blackboard, which can make your toes tightly clasped.

   Therefore, the popularity of iron cone pens has always been limited, that is to say, in the field of popular teaching, there are basically no tools similar to blackboards.

  Only some more responsible teachers will occasionally let students gather around to demonstrate the stroke order for them.

in this case.

  If you stand at the back, you may miss the teaching of stroke order.

  After the coursework is over, qualified students can buy copybooks to copy, and the copybooks will clearly tell you the order of strokes.

   As for the unqualified students, it will be miserable:

If you meet a better classmate, you may be able to ask for advice on how to write, but if your classmate relationship is average or you didn't ask when you were in elementary school—you may not be aware of this aspect when you were young in elementary school, and these people may even reach the stage of imperial examinations. How should the word be written. (Reference material doi: 10.16346/j.cnki.37-1101/c.2002.06.022, a paper by an authoritative professor of Hebei University)

  For example, the word fen in fennel beans, you can see at least a dozen ways of writing in the Song Dynasty.

  Whether a character looks good after it is formed is inextricably linked to the order of strokes.

  The handwriting of the ancient imperial examinations is another bonus item, so some unlucky people have studied hard for more than ten years, and they are obviously capable of passing the imperial examinations, but they overturned because of handwriting problems.

  In fact, there are many similar situations in later generations. When I was in elementary school, I didn't like to practice calligraphy. In the college entrance examination, it's not too many to lose points.

   Therefore, now that chalk is available, the teacher's teaching quality in the classroom may be greatly improved, and at the same time, it can be popularized on a large scale.

  After all, according to Xu Yun's previous demonstration, the production process and cost of chalk are extremely simple and low.

   "Today there are twenty-six branch roads in the world, four capitals, thirty prefectures, two hundred and fifty four prefectures, one thousand two hundred and thirty-four counties, and two Mengxue schools in each county"

  Looking at the piece of chalk in his hand, Lao Su's hands trembled slightly:

   "With chalk, if each county can teach three more scholars every year, that will be more than 3,700 people, and culture and education will flourish."

  Then he took a deep look at Xu Yun who was preparing the lecture notes, and he couldn't help hesitating in his heart:

   Is such a young man who can take out many strange things at will really just an ordinary actor?

   Don't say anything else.

   As long as he sells allicin, at least one state's richest man must be worth it, right?

  Although the profession of an actor is relatively restrictive, it is not impossible to get away with atonement.

  For example, at present, a Jiyingdian in the imperial court edits and writes Chen Ling. He was born as an actor who redeemed himself.

unless

  There are other secrets in him, so that he has no chance to redeem himself.

   It's not that Lao Su is inexplicably making up his mind, after all, Xu Yun's own conditions are too special:

  Ye Ye appeared in his own mansion, without a waist card and documents of origin, with a lot of gold and silver treasures on his body, and his whole body was delicate and tender.

  At the same time, his own cultural literacy and knowledge reserves are not low, and he has a magical prescription that even the masters in Beijing don't know.

   Looking at the entire Song Dynasty, there seems to be only one place where a lot of mysterious knowledge can be stored.

   That is.

   Palace room!

   Hiss.

  Thinking of this, Lao Su's expression suddenly became a little weird.

   Is it the Queen Mother?

   Or Zhao Ji?

or

  Both?

  From a realistic point of view, it seems that Zhao Ji's probability is higher.

   After all, this is a well-known playboy, and Wu Zetian is the only two emperors in history who set up relevant institutions for sex, namely the Crane Control Bureau and the Xingxing Bureau.

  Thinking of this layer, Lao Su couldn't help hesitating:

  If the emperor really sent someone to his house to arrest Xu Yun, what should he do?

  Pay or not, it seems that it is not a good way.

   While Lao Su's thinking was diverging.

the other side.

  Xu Yun finally decided on the direction of his handouts:

   Physical force.

  In later generations of China, what people call science generally refers to natural science.

  The essence of natural science is generally a description of the laws governing natural phenomena.

  For example, we observe a certain phenomenon, guess the law behind it through logical reasoning and express it in mathematical language, and then verify its accuracy through experiments.

  In this way, we can say that we have obtained the laws or principles of natural phenomena within the tolerance range of errors.

   As for the basis of science

  From an objective point of view, mathematics is actually a little higher than physics.

   It can be said that behind every major progress of human beings, mathematics is behind the strong support.

  However, considering the knowledge reserve of Xiao Li and Zhao Si, Xu Yun finally decided to start with physics first.

   After all, physical phenomena are more intuitive than mathematics, and the mathematical reserves required for basic physics knowledge were not particularly advanced knowledge in ancient China.

  Especially in the Song and Yuan dynasties, ancient mathematics developed to a fairly advanced level.

   Among other things, let's just say that he is very close to now and is also very familiar to everyone:

  Yang Hui.

  Yang Hui's triangle involves the binomial theorem, and some areas have not been explored clearly until now.

  Although Yang Hui did not achieve the achievement of simplifying the binomial when he was alive, it can at least show that in this era, the ceiling explored by ancient mathematics is not low.

  Even Xiao Li, a literary bean sprout, still has some understanding of the basics of mathematics.

   Therefore, starting from the concept of static knowledge of physics is undoubtedly a relatively good entry direction.

   Then he glanced at Lao Su who was thinking about the price (lai) of powder (zi) pen (ji) (lai) and value (li), coughed lightly, and reminded:

   "Sir, can we start?"

"oh oh."

  Old Su came back to his senses and temporarily put the problem in his mind aside.

  At present, Zhao Ji has just ascended the throne not long ago, and the Empress Dowager Xiang and all civil and military officials are in a period of running-in and trial.

  So even if he found Xu Yun's trace, he would not be able to take any action in a short time, after all, everyone was staring at him.

  At least until this year's Spring Festival, Xu Yun should be safe.

  Think here.

  He couldn't help but slightly relieved, and said to Xu Yun:

   "Xiao Wang, since you are ready, let's start."

   Finish speaking.

  He put the chalk back on the table, walked to a small chair in front of the blackboard and sat down.

   As a result, I just took my seat.

  Old Su had a very subtle feeling in his heart:

  In the past, he was the one who taught others. This kind of situation of listening to other people's lectures has not happened for sixty years.

Of course.

  As a knowledge seeker who has been immersed in the library for nine years, Lao Su still has a high thirst for knowledge, far from being as defiant as the later generations of scholars.

   Therefore, this emotion came and went quickly, and it didn't affect Lao Su's attention too much.

   That's it, a moment later.

  The three curious babies, Lao Su, Xiao Li, and Xiao Zhao, all sat on the chair obediently.

   I listened to Teacher Xu's class with great anticipation.

  Xu Yun came to the blackboard and picked up the chalk.

   After thinking for a moment, he asked Xiao Li:

   "Miss Li, I heard that you wrote a poem not long ago, called "Like a Dream Order Last Night Rain and Wind Sudden"?"

   Today's words are a little less, nearly half less than usual, because I've been with you all night for three days, and my uncle recovered from illness today, so I'll be with him all night.

   This chapter is sent on a regular basis. By the time you see it, I should have slept for three hours. I will try to sleep until 12 noon tomorrow and make up for it in one go.

   Gagen is coming, are you ready? ? ? ?

  (end of this chapter)

Chapter end