I am a nobleman in Spring and Autumn

Chapter 22 Efforts to Accelerate the Progress of Civilization

Handan Zhao's "Handan" has been operated for hundreds of years, but due to the constraints of Zhou Li, the city wall is actually only six or seven meters high, and the thickness of the city wall should be about four meters, which is not a strong city.

In the era when Zhou Li was effective, the square of Wangcheng was nine li, the square of Gongcheng was seven li, the square of Hou and Bocheng was five li, and the square of Zi and Nan was three li.

The "li" in the above few miles is about 400 meters in one mile, which is generally a counting method of the circumference of four sides, that is, "circumference".

Handan Zhao is not a prince or marquis, in fact, he is not even a son or a man, which is a kind of title of "doctor", and it is a minister of ministers to put it bluntly.

They want to thank themselves for having an ancestor who once served as the "Qing" of the Jin State, all because the "Qing" of the Jin State is higher than the princes, and the area occupied by the city can be blurred.

So, how many miles is the perimeter of "Handan"?In fact, it is a five-mile length with an irregular perimeter.

One of Zhao's troops arrived at the city of "Handan", and immediately launched a tentative attack. Naturally, they failed to take down the city, and then began to make various siege equipment.

Although it is the age of omnipotence, there are still very few types of siege equipment invented.

For example, there are definitely no catapults or bed crossbows, and the rushing carts and ladders are only the initial version. Because there is no moat in the city, no one would have thought of it. The fén wēn cart used to block arrows and throw stones is Have it already.

It would take at least half a month for the Zhao family's army to siege the city to produce enough siege equipment. During this period, apart from repeatedly cursing and letting the defenders go out of the city to fight, once the defenders couldn't hold on, they could only stare blankly.

This time Handan Zhao withdrew all his troops back into the city, unlike normal city defenders who would deploy troops outside the city. It was clear that he had given up hope of a counterattack and adopted a strategy of completely defending.

In other words, Zhao of Handan put his hope of counterattack on the allies such as the Fan family and the Zhongxing family, so he did not deploy troops outside the city of "Handan".

What they did was very dangerous. If Fan and Zhongxing didn't come, they could only be trapped in the city and wait to die.

Zhiyao, who lives in "Father Huang", pays attention to the trend of the war on the one hand, but on the other hand feels that she cannot be idle.

At present, "Father Huang" is one of Zhiyao's bases. Many workshops are placed here. I haven't come here for a year. It's okay to be busy before, and I will definitely conduct inspections when I have time.

Among Zhiyao's "inventions", the routine of making paper was successfully explored, and with the manufacturing skills, production expansion began. One year later, tens of thousands of modern A4 paper-sized sheets can be produced every month.

With such a small output, any small workshop in modern times can surpass it, but it is now in 497 BC!

A large number of papers are produced, most of them are still used by Zhiyao to educate the team, and the rest are reserved for printing books.

In terms of printing, Zhiyao certainly knows that there are many kinds of distinctions, probably the distinction is woodblock printing and movable type printing.

After experimenting separately, it was woodblock printing that Zhiyao planned to use to print books.

Why?You can know the difference between engraving and movable type printing, and you need to figure out what kind of writing is currently in use.

The characters in use now are big seal characters, with scary strokes. Not to mention the difficulty of engraving movable type, do you know how big the "print" should be to prevent the characters from becoming a mess when printed?

What?Engraving will also be affected by font size?That is, I don't know the difference between the two printing techniques.

In fact, even if movable type printing is invented, before movable type printing is fully mature, in fact, contemporary people still choose engraving printing when pursuing exquisiteness and clear fonts.

At present, Zhiyao has not figured out which ink is most suitable for printing. Of course, engraving printing will be used in the experimental stage. Moreover, the books to be printed are not dozens of books, as many as hundreds or thousands of books, and the time-consuming engraving will not be wasted.

Zigong, who was in charge of researching printing, saw Zhiyao coming, and came over with a sloppy look.

"Ci, you're like this..." Zhiyao was a little confused.

Excited with fatigue, Zi Gong said, "I was entrusted by Gongsun to participate in this matter, how dare I neglect it."

He is a disciple of Confucius, and he is good at business. How could he ignore the influence of paper and printing on cultural communication?

Zhiyao could understand, so she asked: "Danzi has written many masterpieces silently, I should encourage him."

As the "librarian" of the Zhou royal family, Laozi still stayed on the side of "Father Huang". Except for teaching the students arranged by Zhiyao, most of the time he was silently writing the works in his memory.

Therefore, Lao Tzu was never willing to come to Jin, and said he was going to leave several times, but the "Huang Father" who was still in the Zhi family did not leave.

It's not the "true fragrance" thing, it's all Zhiyao's things that always attract me, especially knowing the existence of paper and printing, I didn't say anything, but I made up my mind to remember it The classics were written, and then copied or printed on paper one by one.

In the final analysis, Lao Tzu was still very guilty of failing to prevent Wang Zichao from taking away the classics from the Zhou royal family's collection.

The classics fell into the hands of the royal family of Chu. Not surprisingly, the countries of the Central Plains would not want to see them again. It would have been too much work if they hadn’t been reproduced before. Using a carving knife to carve characters on bamboo slips is not as easy as writing with a pen.

Knowing that as long as one copy is written silently, countless copies can be printed extremely quickly using printing technology. I feel that I can stay in Jin for a few more years.

"As Gongsun said, 'plates' made of pottery, copper, and iron are all being tested, and copper is the best at present." Zigong said.

In fact, Zhiyao knows that it is best to use clay. The key is that this is the era before BC, and ninety-nine percent of things have not been invented and created, let alone go to department stores to buy them.

In addition, during the Spring and Autumn Period, Zhuxia had already discovered "lead", but they didn't know its uses other than military industry.

Zhiyao didn't forget "lead", but she knew better that it is a strategic material, which will be used in large quantities when making bronze weapons.

Printing doesn't have to use lead anyway, does it?

Therefore, Zhiyao simply did not pursue lead in particular.

Because Zhiyao has already engaged in honeycomb coal, and also happened to discover the technique of washing coal, they have made some breakthroughs in smelting technology.

After the temperature is high enough, it is still a little difficult to melt iron, but it is already possible to melt copper into a liquid.

Can copper be turned into a liquid?The production process of the assembly line can be arranged!

"Take pottery as a model, and pour copper water to make arrowheads." Zhiyao went to another place after seeing the papermaking workshop.

Not only arrowheads can be mass-produced, in fact, as long as the molds are made one by one, the main bronze parts of weapons such as daggers and spears can also be mass-produced in a more time-saving and labor-saving manner.

Then again, Lao Zhi's major is related to textiles, but Zhiyao is doing things like this. He is only studying smelting and the manufacture of armor. In fact, he is robbing Wei's major. Is it appropriate?

(End of this chapter)