Zhang Ning asked again: "Then what can you do?" Need me help you? ”

Han Nuo was also polite, and said, "Naturally, I need your help." But I'm not in a hurry, so let's talk about what you're doing when you come to me. ”

Zhang Ningcai suddenly saved his mind and said, "Ah, yes, we came because we were almost busy with the things you asked us to prepare before, do you want to go and see?" ”

Han Nuo was surprised, looked at Zhang Jiao, and asked, "So fast?" ”

Zhang Jiao nodded and said, "This matter is more important, so we naturally have to do it as soon as possible." ”

Han Nuo immediately stood up and said, "Then let's go over and have a look." ”

On the past road, Han Nuo learned that because Guangzong City had him as a helper, Zhang Jiao planned to let Chu Feiyan return to Julu, and there was no general to guard there, so he was always not at ease.

And before Chu Feiyan goes back, it is best to see what the so-called papermaking and printing technology are all about, if he can, he will also do it directly after he goes back to Julu. Even if you can't do it, you can prepare first.

Han Nuo knew that Zhang Jiao still had unspoken reasons, and he also wanted to ask Han Nuo to hand over those two techniques as soon as possible.

Han Nuo was sincere in wanting to help them, so naturally he didn't bother to care about their thoughts.

At this time, they came to a forest, and there was a small river at the edge of the forest, because Han Nuo had specially told them that this place they chose was the lower reaches of the river.

Papermaking technology was as early as the Western Han Dynasty, and even the pre-Qin Dynasty had a prototype, and the later process was considered mature, but the paper produced was not in good condition.

Eighty years ago, Cai Lun only improved the papermaking technique to make the paper look better and easier to make.

Therefore, Han Nuo did not hide it at all, and explained them one by one in this selected venue, under the listening of all craftsmen.

Papermaking is generally divided into nine steps: hemp cutting, washing, liming water, steaming, pounding, pulping, papermaking, drying paper, and unwrapping!

Later generations of technology are only improving on these nine steps.

Even though these craftsmen had never been exposed to papermaking, the steps were not difficult, and Han Nuo explained them in detail, so they could easily understand them.

"I see, mulberry skin and rattan skin can also be used?"

"Straw rice stalk is okay?"

Han Nuo nodded: "Of course you can." Actually, you can also use bamboo, but it's still difficult for you to do it. It's a little easier like mulberry vine bark. ”

"Just grass and gray water?"

"Yes, if you can find a better one, you can use lime water naturally, and if you don't have it, you can use grass and wood gray water."

The craftsman asked the questions one by one, and Han Nuo also answered them one by one.

As for the explanation of printing, it is a bit more troublesome.

Because paper was rare at this time, books were disseminated by hand.

Of course, there are also considerations that a good memory is not as good as a bad pen.

However, at this time, there was really no such thing as printing, and some were only the prototypes of seals, clay seals, rubbings, etc.

Printing originated from Taoist engraving printing, which was after the papermaking technology of the Jin Dynasty was transmitted to Jiangnan and paper became popular.

In the middle and late Tang Dynasty, engraving printing was widely used, and in the Northern Song Dynasty, Bi Sheng invented movable type printing, but because there were not many varieties of books and the problem of small production, it was not yet widely used.

For the craftsmen at this time, this printing technique was a craft that they had never seen before, or even heard of, and it was naturally difficult to understand.

Han Nuo started with engraving printing.

Han Nuo directly wrote the five words "Keshang Natural Residence" on a piece of Caihou paper, and then pasted the front of Caihou's paper on a flat and smooth thick wooden board.

At this time, the words he saw were the reverse characters on the back, and Han Nuo asked the craftsman to cut off the part without handwriting.

An old craftsman was promoted, and it was quickly sharpened.

At this time, there is a convex yang script on the wooden board, which is completely different from the stele yin text with the font recessed.

Concave and convex, positive and negative, are completely opposite, just like opposing yin and yang.

Han Nuo asked people to ink the protruding handwriting on the wooden board, and then took a piece of Caihou paper, pasted it on the wooden board, wiped the back of the paper, and rubbed the handwriting!

Han Nuo asked the craftsmen to take a piece of paper and print a copy of each.

"This is printing?"

Looking at the five words printed, the craftsmen looked left and right, and after comparison, they found that the handwriting was exactly the same!

"That's great!"

"Yes, with this method, you don't have to copy so hard anymore!"

"You can read as many books as you want! As long as the paper tube is enough! ”

"By the way, didn't the adults teach us the art of papermaking?"

"I see!"

"Your Excellency is wise!"

The craftsman was complimented, but Han Nuo waved his hand and said, "Do you think that's all there is to it?" And that's not all! ”

"Huh?"

"What else?"

Zhang Ning saw the magic of printing technology on the side, and asked excitedly: "This is not the real printing technology?" ”

Han Nuo didn't rush to answer, and asked first, "They can all be trusted, right?" ”

Chu Feiyan, who had been watching quietly from the side, responded in a deep voice at this time: "This is nature!" ”

Zhang Niujiao also said in an urn on the side: "Look at them dare to speak out!" ”

Han Nuo nodded: "That's good." You saw what happened next, but you must not say it! ”

Those craftsmen responded in a loud voice under the fierce gaze of Zhang Niujiao: "Yes, yes, we will never say it." ”

Han Nuo took out the newly equipped big knife, slashed six times in a row, and took out the five words on it!

Five words, five lengths of the same length of the board.

Han Nuo reversed the order of these five wooden boards, and he became "actually a guest in the sky"!

"This!" Zhang Jiao was the first to understand, and exclaimed: "Can you still do this? ”

Zhang Ning had to accept Zhang Jiao as a disciple and teach Taoism, he was naturally smart, and he also understood, so he immediately grabbed a piece of Caihou paper and printed a copy on the spliced wooden board.

The words "actually a guest in the sky" jumped on the paper!

"Is this the real printing press?" Zhang Ning asked excitedly.

Han Nuo nodded: "Yes, this is the real printing technique!" ”

Zhang Ning turned around, separated the five words, spelled them into the order of "guest natural residence", and rubbed another one.

On paper, it is naturally the five words "guest natural residence"!

At this time, even the stupidity is as dull as a bull's horn and understands!

Zhang Jiao took two different pieces of paper together and read: "The guest is a natural dwelling, but the guest is actually a guest in the sky!" Good! Good! Good! ”

At this time, Zhang Jiao really believed in Han Nuo, not only believing in Han Nuo's mortal identity, but also believing in his sincerity to help him!

"Three Character Classic", "Hundred Family Names", and "Thousand Character Text" three enlightenment classics, plus this papermaking and printing, but Zhang Jiao still doesn't believe in his sincerity!

Such a big gift, in exchange for a gift to the Han Dynasty, is enough to pay homage to the prime minister!