Taking advantage of the time when Zhang Zhen came down, Cao Ang asked curiously what this room was for.

"Our newspapers will not only have words, but also pictures, the general decorative pictures are engraved, but the photos are lithographed, in fact, it is not appropriate to call this engraving, but everyone is used to it, so they will not change."

"Lithography?"

"Yes, the copper plate coated with photosensitive materials will form a larger exposure area in the brighter part of the picture when exposed, and it can be used for printing after taking out the negative etching, so we also call this a lithography machine."

Cao Ang thought about it carefully for a long time and didn't understand why he could understand every word of this sentence, but it was so difficult to understand.

"Gongzi Cao, President Zhang is here."

Cao Ang hurriedly turned around, just when he saw Zhang Zhen coming in, Cao Ang first saluted and said, "Ang has seen President Zhang!" ”

"Oh, I don't know that Cao Gongzi is coming, it's too far away, come on, come on, sit on it."

Cao Ang hurriedly shook his head, Lin Zhi asked him to watch here, he didn't dare to run around.

A person on the side whispered a few words to Zhang Zang, and Zhang Zang stroked his beard and said, "In this case, Cao Gongzi will wait here, take some newspapers and show Cao Gongzi to relieve his boredom." ”

Cao Ang thanked him gratefully, "It's too difficult to see newspapers in Yanzhou, but today you can feast your eyes." ”

A desk was set up in the office, and the staff brought the latest newspaper to Cao Ang, and when Cao Ang opened it, he saw a huge headline on the first page.

"Ma Envoy Jun broke the rebel Yuan Shao at the boundary bridge, and Han Jizhou gave a speech to thank the Qingzhou military and civilians"

This is a battlefield report on the Battle of the Boundary Bridge, full of pictures and texts, a picture of the Battle of the Boundary Bridge is very attractive, from the picture you can see the chaotic Yuan Shao army and the broken flag and the Qingzhou soldiers who are bravely moving forward.

The content of the report is also very detailed, not only writing about the operational deployment of the two armies at that time, but also interviewing some officers on both sides, of course, the officers on Yuan Shao's side were all captured.

"It's really ridiculous that Yuan Shao actually reorganized the army before the battle."

"It is worthy of Uncle Zilong, he is really wise and brave!"

"Mysterious weapon... What the hell is this? ”

When he saw the sergeants on Ma Qiang's side interviewing and speaking, Cao Ang found that what these sergeants said was very organized, and asked why they were desperate to charge forward, or said that in order to repay Ma Qiang for giving them the land, or in order to obtain military merits to make the family's life better, some even said that they were from Jizhou, and they followed Ma Qiang in the Yellow Turban Rebellion, hoping to defeat the rebels quickly and let Jizhou live a good life like Qingzhou.

Cao Ang put down the newspaper, thought about it carefully, and felt that this report was really powerful, and one article was enough to boost the morale of the army, especially those sergeants who were written in the newspaper, I am afraid they were eager to repay with death.

This is basically going down in history.

Cao Ang went back further, and the second page was written about the autumn harvest, saying that although there was a locust plague in various parts of Qingzhou, due to the efforts of the people in various places to prevent and control it, the area of fields with no harvest or failed harvest accounted for only 23 percent of the whole Qingzhou, and at the same time, the government would distribute relief grain to the peasants who had lost or failed to harvest because of the disaster.

No bumper harvest in Qingzhou? If this is the case, plus most of the farmland in Jizhou has been burned, or the grain has been robbed to Wubao by the big clans, Ma Qiang should not be enough even if he has the food provided by Xuzhou.

Could it be that Ma Qiang will withdraw from Jizhou?

Cao Ang felt more and more that there was too much information in the newspaper.

When he returned to Yanzhou, he must let his father buy Qingzhou's newspapers regularly, and Yanzhou should also publish its own newspapers.

Although Cao Ang didn't know much about public opinion warfare, he knew that Cao Cao let him come to see what good things in Qingzhou could learn from the past.

This newspaper is a good thing! Ranwen

"The engraving is ready!"

A shout woke up Cao Ang who was thinking, Cao Ang watched a few people rush out with the photo engraving that had just been made, and hurriedly followed, Lin Zhi walked out of the opposite office, saw that the engraving was ready, and said with great joy, "Let's go, let's go to the printing workshop together!" ”

The newspaper printing workshop is just behind the newspaper office, and as soon as you enter, you can smell an even stronger smell of ink.

"This is the printing shop! No one is allowed to enter! ”

The sergeant guarding the workshop pulled out his sword and stopped Cao Ang, Lin Zhi directly took out his ID and said, "This is the son of Cao Ang in Yanzhou, it was Sister Qingcheng who said he could come in." ”

The sergeants glanced at each other, walked to a small kiosk on the side, picked up the phone and called, and nodded after a while, "Release!" ”

Cao Ang hadn't seen the phone yet, so he couldn't help but look at the phone in the guard booth with some curiosity, and asked while looking at it, "Lin Zhi, why are the guards here so tight?" It's okay if I come in, right? ”

"That's because there's a secret of printing here, Brother Xiao Ma wrote to me before, saying that printing can be taught to you, so it's okay."

After Ma Qiang finished talking with Cao Cao, he immediately drew up a whitelist and blacklist of science and technology, such as papermaking and printing, which are sharp weapons that help spread knowledge and attack the scholars, and Ma Qiang can't wait to spread it throughout the Han Dynasty.

But Ma Qiang is unwilling to teach military techniques such as gunpowder and smelting, or money-making methods such as porcelain and glass.

"Typography..."

"Yes, Brother Xiao Ma said that printing and papermaking are things that can change the world, with these two things, everyone in the world will be able to read and write in the future, and there will be no more eight dragons and nine dragons, but everyone is a dragon!"

"Everyone is a dragon..."

"The engraving is ready! Ready, come and pick up the engraving! ”

The workers in the printing workshop heard the shouts and walked out of the lounge, and began to prepare quickly.

"Lin Zhi, can you introduce me to this printing technique?"

"Okay, you see, this is the printing press."

Anyway, printing doesn't have anything to do with Linzhi, but she also likes to sell her own treasures to outsiders.

This mind is similar to that of the girls who like to show off their bags in later generations.

The printing press consists of a base plate and a pressing plate with a screw down device, which is actually not complicated.

"You see, the paper cut to the same size is placed on this bottom plate, and then the pressing plate on it is like a seal, but the engraving plate is stuck on it, and when you press it down, it becomes it."

"How much paper can such a printing press print in a day?"

"This printing press is a very original version, and the printing efficiency is not very high, it can print about 300 sheets a day." Lin Zhi scratched his head and said.

"Three hundred? Not a lot! I don't think it's difficult to build this thing, if you can build 100 units, it will be 30,000 pieces of paper a day, and there will be more than 10 million words in it? ”

As soon as he thought of this, Cao Ang felt a little suffocated.

10 million words, how many people have to copy it for a day to copy it.

And these jobs don't need to be done by literati at all, so it's no wonder that Qingzhou can let so many students study.