At the end of May and the beginning of June, just after the Jiangdong crash, Bailiyan received nearly 250,000 pieces of gold and more than 1.22 million pieces of silver.

The 400,000 gold coins and 3 million silver coins that were finally hidden at the beginning were prepared for several months and secretly arranged by Master Cheng Jiyuan, the left door of the Ligong faction, and cast them on the condition that a fraction of the secret money was used as a reward.

In addition, all the other treasured gems and jade were hidden in the underground treasury of the Hou Mansion.

The total amount of industrial diamonds, Baili Yan ordered Jiang Jie to pick up 200 young people from all over the country, sorted and classified for several months, all of them were packed in double-layer sacks, the largest and the best industrial diamonds were transported back to the basement of Yongxing Houfu one after another, and the rest were pressed in Yongxing City, which was guarded by Liu Zao and his son, and Yang Dun, an industrial official, so as to facilitate future use.

It is worth mentioning that spices and leather goods, there are not too many batches, but the rare herbs in the Central Plains have raised a lot of money for Qianfang, otherwise the Jiangdong storm, Bailiyan will never be able to take out a huge amount of money to suppress the depreciation trend.

In May, Bai Liyan officially married Chunrou, Chunfang, and Tang Tao, and after waiting for so many years, the three finally had an official name.

In mid to late June, the weather was very hot, and many people returning to the Central Plains from the north could not bear it, and the Gudapa people had never seen such a hot temperature in the north, and at the same time they were surprised that the Central Plains could make ice in the hot weather. In order to relieve the scorching heat of Gudappa and others, Baili Yan ordered people to build a wind tower.

A wind tower is a tall masonry tower that can be seen from a height of more than 20 meters, and the higher the better.

The upper layer of the tower is a honeycomb structure, there is a pool in the honeycomb, the wind tower is hollow under the wind, when the hot air produces convection through the honeycomb, the convective air is affected by the pool, the heat is absorbed, the temperature drops again in the process of leading to the lower layer, and when it arrives at the cool place on the ground, the temperature often does not exceed 244 or 5 degrees, which is very comfortable.

After the establishment of the wind tower, it quickly swept the Lingling, the king of Xian built the wind tower in the palace, the highest one later reached eight zhang, and ordered people to put the ice cubes in the wind tower pool, the temperature plummeted to below 20 degrees, it was like blowing air conditioning.

At the end of June, five new textile and spinning machines were put into use, due to the use of a more reasonable mechanical structure, the labor intensity has been reduced, but the efficiency is three times higher than that of traditional looms, and the cotton yarn and cloth woven are more delicate.

After March, a large number of new textile and spinning machines were put into use, and the new cloth was very popular. Four years later, on this basis, a more advanced shuttle loom was developed, and a spinning machine that replaced manpower with wind power appeared.

In July, the summer harvest followed, and last year's efforts were finally rewarded, Xianxi and Qiunan recovered land out of the economic trough, and the policy of subsidizing grain and grass in the treasury was put to an end.

There was a large surplus of grain and grass collected in various localities before the end of the year, and another season was harvested in the autumn, and grain prices fell rapidly.

The issuance and circulation of new currencies have achieved good results in pilot areas such as Dujun and Yongxing, and it has been proved that the open and inclusive fiscal and tax policies have accelerated the flow of funds and the recovery of industries.

In order to cope with the increasingly complicated financial work, Baili Yan ordered Yongxing City to build 1,000 pairs of abacus according to the drawings he drawn, and distributed them to various money workshops and workshops for heavy calculation tasks.

In August and September, Xu is Black Turban Army felt the pressure of the Western Front, and suddenly used troops against Xianguo, and also used artillery firearms.

Maybe God can't stand it, August and September in the Xianxi area of heavy rain, almost naked firearms are difficult to use, Zhao Xun took the opportunity to attack, but also captured a number of firearms, for this also pulled two to Yongxing City to order Bailiyan to imitate, Xianwang also repeatedly urged the imitation of artillery.

However, Bailiyan did not agree, but increased the supply of gunpowder.

After the autumn, the economy improved significantly, and Bailiyan was able to take the time to clean up the stalls in Yongxing City. He also dug out the mathematics and science teaching staff compiled in 629 from the house.

Time flies, and after so many years, it is difficult to say how much I still remember from my previous life.

Bai Liyan spent two months reorganizing and arguing the mathematics and science teaching staff compiled that year. On this basis, some intermediate and advanced mathematics content was improved, and the Jin Xuedi script was borrowed to make its expressions localized, which is more in line with the current humanistic conditions, and also retained some earth expression symbols, such as addition, subtraction, multiplication, division, decimal point and other symbols can still be used.

The selection of numbers is a headache, according to Arabic numerals, not to mention that there is no basis to test at the moment, can not convince others, and jerky and disobedient, incompatible with the Central Plains, difficult to accept. And Arabic numerals have drawbacks, 4, 5 need two strokes, of course, scribbled can be a stroke, 6, 9 will be reversed, 1 is easy to be confused with vertical, 3 and 8 are easy to make mistakes. Ultimately weigh the pros and cons and consider using the numbers of the Jinxuedi people.

Compared with the original Chinese numerals and Arabic numerals, the numbers of the Jin Xuedi people are more concise, and they can be written with only one stroke, and the numbers and numbers can be written in a row through scribbling, and they will not be unrecognizable or mistaken because the handwriting is too sloppy, but the disadvantage is that there is no zero.

After the introduction of 0, the 0 number can provide an interval for the Liancao Jinxuedi number, which can be said to enhance the convenience and recognition of writing.

At the end of December, Bailiyan successively printed and distributed mathematics test papers in copper movable type, and the test papers expressed the content of the test questions in an easy-to-understand traditional literary expression of the Central Plains.

The test papers are divided into two sets, one covers basic simple mathematics and the second covers elementary mathematics and simple geometry, which is equivalent to the five and sixth grades of primary school and the first and second grades of junior high school.

Affected by Wu Arithmetic, Bai Liyan did not dare to add intermediate or above mathematics content at one time, and mostly used simple foundation as the assessment standard, so as to select a group of talents with more solid mathematics.

The selection scope includes craftsmen, students from the school, and people from society with a basically clean foundation can participate in the entrance examination, and it can also be recommended through internal channels.

Interestingly, Bailiyan did not plan to cooperate with the Ligong faction, for the simple reason that the Ligong faction made a living by developing technology and selling technical products, and mathematics, as the key foundation and core knowledge of all sciences, was crucial to the development of all types of science.

Although the current feudal consciousness does not attach importance to this point, the diffusion effect of mathematical and physical knowledge will be quickly reflected in the field of military logistics, and then spread to other fields, which is extremely unfavorable to the Xianguo.

After Cheng Jiyuan learned the news, he first had to take a few sets of test papers, and he was soon shocked.

So Bailiyan had to reach an agreement with Cheng Jiyuan, Bailiyan promised to teach mathematical theories, and the Ligong School helped train the craftsmen of Yongxing City, and selected the masters and disciples of the Ligong School who were proficient in simple mathematics to undertake the simple mathematics teaching of students under the age of 16 in the school.

After two rounds of assessment, there are more than 1,300 reference personnel, more than 200 craftsmen in Yongxing City, more than 370 students under the age of 18, and more than 50 people in the society, and the rest are all masters of the Ligong School and their children.

The situation of the school is much better overall, with a solid foundation in simple mathematics and elementary mathematics, and there are even cases where there are almost perfect scores.

In the first month of 636 of the Shengyuan Dynasty, he was busy reviewing the topic, and Bailiyan asked the King of Xian for leave in the name of rectifying the new city, and the King of Xian approved, so he no longer went to court every day after the first month, but changed to once a month in the first, middle and second half of the month.

After the first month, more than 190 people were selected from the examination, and one elementary class and one intermediate class were opened, with half of the staff covering the ages of 14 to 40. The primary class makes up the content of the primary school, and the intermediate class makes up the content of the junior high school.

The course is open for half a day every day, teaching in the morning, self-study and doing problems in the afternoon, the single number opens the beginner class, the double number opens the intermediate class, and the day off every ten days.

Published in February, the teaching staff was widely accepted for its simple and easy to understand expressions and quick to get started because of the change in traditional Chinese and pictorial expressions, which were not adapted to both classes in the first month.

For those who did not pass the examination, had acceptable potential, and were interested in studying mathematics, Bailiyan also set up a cram school in the school, where the master of the Ligong School taught elementary mathematics to prepare for the next entrance examination.

Two months later, Bailiyan gradually realized that the hustle and bustle of modern society was full of lights, people were no longer learning to live for survival, drunk and dreaming of death for daily money and happiness, and students were either addicted to games or addicted to exciting life, where did they still have the heart to study.

On the other hand, the current simple and quiet atmosphere, everyone is fighting for survival, there is neither the hustle and bustle of the bustling city, nor the bright lights, and the poison of modern electronic products, only one subject is learned every day, everyone has a lot of time to concentrate on academic research without distraction, the ability to accept knowledge and apply too much, the time required for learning and teaching is greatly shortened, and the efficiency is significantly improved.

So much so that Bai Liyan only spent seven months teaching junior high school mathematics and primary school mathematics for three years in her previous life, focusing on making up for the knowledge shortcomings of the junior and secondary classes, and correcting the traditional conservative concept. [Note 1]

At the end of September, a unified examination was held, not to mention 100 percent, seven or eight out of ten people who achieved excellence.

After a short month of repair, and two months after the autumn, the content of the previous half a year was reviewed, and the teaching content was comprehensively upgraded after the winter, and the elementary class was promoted to the intermediate level, and the intermediate class was transferred to the middle and high class, and the high school mathematics course was taught.

During this period, there are occasional scientific and physical contents such as mechanical drawing, simple physics, scientific laws, astronomical calculations, and power.

As for chemistry, there is no intention or need to open it for the time being.

One is that the lesson plan needs to be further improved, and the second is that after so many years, in addition to the commonly used, how many effective past life cognitive memories are debatable, and it takes time to recall and argue and sort out.

The third is also the most deadly, as far as the current situation is concerned, the chemistry itself is not important, what matters is the formula production process, once the process is leaked, the consequences are unimaginable.

In the early days, there was no difficulty in primary chemistry, and it was extremely convenient to imitate, such as the production of soap, but caustic soda and grease, and the manufacture of ice was not outdated in the ice method of making potassium nitrate, water and salt, and there was no secret to tell. [Note 2]

After a year of frantic counterattack, the Black Turban Army reached its all-time peak, and from there, the whole line turned from offensive to defensive.

In 637 of the Shengyuan Dynasty, there was nothing to do all year long, the southern alliance announced its retirement, and the princes' coalition forces returned to China one after another for rectification, and it seems that they have seen the dawn of a joint crusade against the black scarf.

However, for a whole year, no one from all countries made a request for an alliance, and after the vitality of the royal guest was greatly damaged, the main hall located in Xu State was directly exposed to the black turban army, although it did not finally tear the skin, but the black turban army also knew that the royal guest was a bane.

Time into the Shengyuan 637 years, the Central Plains is rare and quiet for a year, the fatigue of the Black Turban Army is revealed, the countries are a little relieved, and the Xianguo after two years of rectification, the economy has rebounded in an all-round way, and Yongxing City has got rid of the royal guest fate, and the profit has increased rapidly.

Thanks to the help of the Gonggong faction, traditional extensive power machinery has appeared in Yongxing City one after another, and the productivity has been greatly improved.

Bailiyan still focuses on mathematics teaching, the new annex and the "Grant of Fields Law" are implemented by Zong Botai, Zhao Anling, Guan Longxiang and the Zhao family, Qianfang is interrogated by King Xian, and Xuantinghou, Luhou, and the Department of Taxation are jointly managed.

In the same year, the education of the four children of Baili Fang, Baili Xiang, Bai Li Xuan, and Baili Caiyun also troubled him.

Bai Liyan thought about it again and again, not only out of political influence, but also out of practical considerations, it is more beneficial to enter the palace to study in the future.

At the same time, he also asked Lord Qiao to teach them some simple arithmetic on weekdays, and when they were eleven years old, they would have their hands free and let the children learn some other things.

However, what gave Bailiyan a headache was that the four ladies of Xiao'er, Chunrou, Chunfang, and Tang Tao became pregnant and gave birth to daughters one after another, that is to say, Bailiyan has eight daughters, but no sons.

[Note 1] In view of the huge difference between the ancient and modern social environments, and the fact that there were far fewer social activities in ancient times than in modern times, solved the problems of eating and basic survival, and allowed individuals to have more time and energy for study and study, so that young talents often appeared in ancient times, which was largely related to the living environment.

Just as modern society is too rich in life, there is neither existential crisis nor oppression, there is everything in material life, online games and mobile games are endless, and there are very few people who can really calm down and study.

Of course, it is undeniable that modern information is more integrated, information sources are wider, and network information is more developed, but in terms of the efficiency of knowledge absorption, ancient times have some advantages.

[Note 2] Although modern chemistry seems to be lofty, chemistry is essentially a formulation process, and to put it mildly, the early chemical process did not have any advanced technology at all, and many times it was very accidental.

For example, nitrocellulose is purely discovered by chance, black powder is also discovered by chance, nitroglycerin is also a glycerol conversion produced by soap production, sulfonamides are also, soda ash is also, even if it is a plastic that changes the world, it is still an accidental discovery.

In particular, some chemicals that do not require complex process equipment at all, or even local processes, can be produced on a large scale.

Therefore, simple chemical processes, especially chemicals that can be used in warfare, once their process formulations and manufacturing processes spread in large quantities in ancient times, the consequences are unimaginable.

The control of chemical processes is undoubtedly the control of developments in the field of military technology.