While Zhang Zhen was coming down, Cao Ang curiously asked what this room was for.

"Our newspapers not only contain text, but also pictures. Generally, decorative pictures are engraving, but photos are engraved. In fact, it is not appropriate to call this engraving. It's just that everyone is used to it, so

I won’t change it.”

"Lithography?"

"Yes, when the copper plate coated with photosensitive material is exposed, the brighter parts of the image will form a larger exposure area. After taking out the film and etching it, it can be used for printing, so we also call this a photolithography machine."

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

"Mr. Cao, President Zhang is here."

Cao Ang turned around quickly and happened to see Zhang Zhen coming in. Cao Ang saluted first and said, "Ang has met President Zhang!"

"Oh, I didn't know Mr. Cao was coming, so I missed him from afar. Come, come, come and sit on the top."

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

A person next to him whispered a few words to Zhang Zhen. Zhang Zhen stroked his beard and said, "In that case, Mr. Cao, just wait here and bring some newspapers to Mr. Cao to read to relieve his boredom."

Cao Ang gratefully handed over his hands and said, "It's really difficult to read newspapers in Yanzhou, but today I can really feast my eyes on it."

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

"Ma Shijun defeated the rebel Yuan Shao at Jieqiao, and Han Jizhou gave a speech to thank the soldiers and people of Qingzhou"

This is a battlefield report about the Battle of Jieqiao, with both pictures and text. A picture of the Battle of Jieqiao is very attractive. From the picture, you can see the chaotic Yuan Shao army, the broken flag, and Qingzhou moving forward bravely.

Soldiers.

The content of the report was also very detailed. It not only wrote about the combat deployment of the two armies at that time, but also interviewed some officers from both sides. Of course, the officers from Yuan Shao's side were all captured.

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

"As expected of Uncle Zilong, he is indeed both wise and brave!"

"Mysterious weapon...what on earth is this?"

When he saw Ma Qiang's sergeants interviewing and speaking, Cao Ang found that what these sergeants said was very organized. When asked why he charged forward regardless of his own safety, or to repay Ma Qiang for allocating fields to them, or to gain military merit.

They came to make their family's life better. Some even said that they were from Jizhou and followed Ma Qiang during the Yellow Turban Rebellion. They hoped to defeat the rebels quickly and let Jizhou live the same good life as Qingzhou.

Cao Ang put down the newspaper and thought about it carefully. He felt that this report was really powerful. An article was enough to boost the morale of the army, especially the sergeants who were written in the newspaper. They probably wanted to die in retribution.

This is basically leaving a name in history.

Cao Ang turned back further and found that the second page was about the autumn harvest. It said that although there were locust plagues in various parts of Qingzhou, due to the efforts of people in various places to prevent and control them, there was no harvest. The area of ​​failed harvest fields only accounted for 23% of the entire Qingzhou. At the same time, the government

Relief grains will be distributed to farmers whose harvests have been cut off due to disasters.

Qingzhou didn't have a good harvest? If that's the case, and most of the farmland in Jizhou was burned down, or the grain was snatched by the rich and taken to Wubao, Ma Qiang probably wouldn't be able to get enough even if he had the grain provided by Xuzhou.

Will Ma Qiang withdraw his troops from Jizhou?

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

When I return to Yanzhou, I must ask my father to buy Qingzhou newspapers on a regular basis. In addition, Yanzhou should also publish its own newspaper.

Although Cao Ang didn't understand the public opinion war, he knew that Cao Cao asked him to come here just to see what good things Qingzhou could learn from.

This newspaper is a good thing!

"The engraving is ready!"

A shout woke up Cao Ang who was thinking. Cao Ang saw several people rushing out with the newly made photo engravings and hurriedly followed. Lin Zhi walked out of the office opposite and saw that the engravings were ready. He said with great joy, "Let's go."

, let’s go to the printing workshop together!”

The newspaper printing workshop is right behind the newspaper office. As soon as you enter, you can smell a stronger smell of ink.

"This is the printing workshop! No unauthorized persons are allowed in!"

The sergeant guarding the workshop drew his sword and stopped Cao Ang. Lin Zhi took out his ID and said, "This is Mr. Cao Ang of Yanzhou. Sister Qingcheng said he can come in."

The sergeant looked at each other, then walked to a small booth on the side, picked up the phone and started calling. After a while, he nodded and said, "Let it go!"

Cao Ang had never seen a phone before, so he couldn't help but look at the phone in the guard booth with some curiosity. While looking at it, he asked, "Ling Zhi, why are the guards here so tight? Is it okay for me to come in?"

"That's because there is a secret to printing here. Brother Ma has written before and said that he can teach you printing, so it doesn't matter."

After talking with Cao Cao, Ma Qiang immediately drew up a white list and black list of technologies, such as papermaking and printing, which are powerful tools that help spread knowledge and attack the nobility. Ma Qiang can't wait to spread the news throughout the Han Dynasty.

But Ma Qiang was not willing to teach military technology such as gunpowder and smelting, or money-making methods such as porcelain and glass.

"Typography..."

"Yes, Brother 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, and there will no longer be eight dragons and nine dragons.

Everyone is a dragon!"

"Everyone is a dragon..."

"The engraving is ready! The preparations are ready, come and pick up the engraving!"

When the workers in the printing workshop heard the shouting, they came out of the break room and quickly started to prepare.

"Ling Zhi, please introduce to me this printing technique."

"Okay, look, this is the printing press."

Printing is not Linzhi's business anyway, she does like to show off her treasures to outsiders.

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

The printing press consists of a base plate and a platen with a screw downward pressure device. It is actually not complicated.

"Look, paper cut to the same size is placed on this base plate, and the pressing plate above is like a seal, except that the engraving is stuck on it. Press it down and it's done."

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

"This printing press is a very primitive version. The printing efficiency is not very high. It can print about three hundred sheets a day." Lin Zhi scratched her head and said.

"Three hundred? That's a lot! I think it's not difficult to make this thing. If you can make a hundred units, it will be 30,000 pieces of paper in one day, and it will contain more than ten million words?"

Cao Ang felt a little suffocated when he thought of this.

How many people would it take a day to copy out ten million words?
Chapter completed!