Could it be that His Majesty the Emperor still understands printing?

The crowd was confused.

"Have you heard of Qin Shi Huang's edict to unify the country's weights and measures, and to seal the four crosses with wood on the pottery?"

......The ministers who read poetry and books and were full of money were clear about this, but they did not know what it had to do with printing.

"Xu Shen, the only defect in your engraving printing is that it cannot be reused. Do you think you can develop a printing technique that can be reused? ”

Ran Min said earnestly: "For example, first make a single word of the Yang text reverse text mold, and then select the words according to the manuscript, arrange them in the word plate, ink printing, and then remove the word mold after printing, and leave it for use again in the next typesetting." ”

"This ......" Xu Shen's face was quite ugly.

"Your Majesty, this grass man hasn't tried it, I don't know if I can do it."

"Since you can invent this kind of block printing, it shouldn't be a problem to make movable type printing." Ran Min squinted his eyes and said, "I don't know the specific method. But I remember that you could use clay type, and it was important that this printing technique could be reused. ”

"Grass people, obey!" Xu Shen took it upon himself.

Since then, Xu Shen has devoted himself to the development of this movable type printing technology, and after more than a year of research, it is finally completed!

Xu Shen's method is as follows: use cement to make a blank with the same specification, engrave the reverse character at one end, and the height of the protrusion of the character is like the thickness of the edge of the copper coin, and it is hardened with fire to become a single cement movable type.

In order to meet the needs of typesetting, there are several or even dozens of commonly used words in order to be used when repeated in the same edition.

If you encounter an uncommon word, if you are not prepared in advance, you can use it as you go.

In order to facilitate the selection of words, Xu Shen classified the clay movable type according to the rhyme and put it in a wooden lattice, and pasted a paper strip to indicate it.

When typesetting, he uses a framed iron plate as a base support, and applies a layer of medicine made of a mixture of pine resin, wax and paper ash, and then sorts out the required cement movable type one by one and arranges them into the frame.

Fill a frame to become a version, and then bake it with fire, wait for the agent to melt slightly, use a flat plate to flatten the literally, and after the medicine cools and solidifies, it becomes a version.

When printing, as long as the ink is brushed on the plate, covered with paper, and a certain amount of pressure is added.

In order to be able to print continuously, Xu Shen used two iron plates, one with brushing and the other with typesetting, and the two versions were used alternately. After printing, the potion is roasted with fire, and the movable type can fall off the iron plate with a slight shake of the hand, and then put it back into the original wooden grid according to the rhyme, so as to be used again next time.

Xu Shen also experimented with movable type printing, but Bi Sheng did not use it because of the uneven texture of the wood, the difficulty of carving, the deformation of the movable type after being wet, and the difficulty of separating it from the medicine when it sticks together.

Xu Shen's clay movable type printing method, if only two or three copies are printed, it is not trouble-free, if hundreds of copies are printed, the work efficiency is extremely considerable, not only can save a lot of manpower and material resources, but also can greatly improve the speed and quality of printing, which is much superior to engraving printing.

Movable type plate making just avoids the lack of engraving, as long as enough single movable type is prepared in advance, it can be imposed at any time, which greatly accelerates the plate making time.

After the movable type plate is printed, it can be disassembled, the movable type can be reused, and the movable type occupies less space than the engraving plate, which is easy to store and keep.

In this way, the superiority of movable type is manifested!

In the end, the three inventors, Xu Shen's engraving printing was the first on the list, Chen Yu's matches were second, and Zhou Qian's pumping machine was the third.

According to the rewards previously promulgated by Ran Min, the second and third places were rewarded with 800 yuan and 80 acres of land, and they entered the Academy of Sciences and left their names in history.

The first prize is 1,000 yuan, 100 acres of land, entered the Academy of Sciences, left in the annals of history, and was named a viscount!

Therefore, Zhou Qian, Chen Yu, and Xu Shen all entered the Academy of Sciences and engaged in research work.

When the three inventors retreated triumphantly, Ge Hong stepped forward and said, "Your Majesty, the minister has something to do." ”

"Please."

Ran Min was a little surprised, this Ge Hong has never participated in court politics on weekdays, why is he so active today? Isn't something really going on? Or who is Ge Hong going to impeach?

You must know that Ge Hong's current official position is the Imperial Doctor's Order, which could have been done without going to court. And because Ge Hong broke an arm and put on a fake arm, but his appearance was different, it was not easy to see people, so Ran Min did not let Ge Hong have to go to court.

However, Ran Min's importance to Ge Hong is not ordinary.

So for Ge Hong's playing, Ran Min can listen to it somewhat.

"Your Majesty, the minister knows that there is a craftsman in Jizhou, named Xu Zhengming. This man invented a helicopter that was said to be able to fly into the sky, but it went wrong in the first attempt and was brushed off. Chen has seen this kind of helicopter made by Xu Zhengming, it is indeed extraordinary! Xu Zhengming begged the minister, wanting the minister to make it clear to His Majesty and let the court fund him to develop a helicopter! ”

"Ge Aiqing, you... What did you say? Helicopter! ”

Ran Min was really frightened and dumbfounded!

"Yes."

Knowing such a thing as a helicopter, Ran Min couldn't sit still any longer, and after simply dealing with a few political affairs, he asked Ge Hong to bring Xu Zhengming and the "helicopter" he invented to him.

Is this really ancient?

How did even the helicopter come out!

Ran Min was very confused in his heart, before he saw Xu Zhengming, Ran Min really thought that this guy was a traverser like himself.

In the imperial garden of the Forbidden City, Ran Min met Xu Zhengming.

"Grass people Xu Zhengming, see Your Majesty! Long live Your Majesty, long live, long live! ”

"Let's be flat."

Ran Min asked impatiently: "Xu Zhengming, do you know about aircraft carriers?" Shenzhou VII? Donghong Forty-Nine? ”

"This ...... The grass people are lonely and unheard, and they don't know. Xu Zhengming's face was confused.

Seeing that Xu Zhengming's expression did not seem to be fake, Ran Min suddenly breathed a sigh of relief in his heart.

It's good to meet old acquaintances in a foreign land.

But for the current Ran Min, he really found that there was a time-traveler from the modern era like him, and he was really relieved not to kill this person!

"Xu Zhengming, where is your helicopter? Brought? ”

"Brought. Your Majesty, please look! ”

Ran Min saw the "helicopter" carried in by the four chamberlains. It has propellers like bamboo dragonflies, and the seat is like a hoop chair, which is truly extraordinary.

But can this thing really fly?

"Xu Zhengming, how did you invent this...... This helicopter? ”

"Your Majesty, the grass people have been thinking about the bamboo dragonflies that children play with all day long, and they want to make a helicopter that resembles a dragonfly, and they want to take people into the sky! After more than ten years of research, Caomin finally built a helicopter. ”

"Uh, can this thing fly?"

"Yes!"

Looking at Xu Zhengming's sworn appearance, Ran Min was really surprised. If it weren't for the fact that this Xu Zhengming didn't look like he ran out of a mental hospital, Ran Min would still think that this guy was crazy!

From ancient times to the present, human beings have always longed to soar in the sky like birds. But dreams are dreams after all, and it is not easy to achieve them!

In fact, as early as 500 B.C., the Chinese people made a flying helicopter bamboo dragonfly, which is the origin of the helicopter.

The bamboo dragonfly is a kind of children's toy, it uses a small stick as a shaft, the top of the shaft has propeller fins and sometimes feathers, rub the small stick with your hand, it flies upward, and the effect is like a spiral. The rotational motion creates an air flow, and the rotating fins cut into the air flow, creating lift.

This is how helicopters work.

Xu Zhengming immediately demonstrated in person, his helicopter is relying on the foot pedal through the rotation mechanism to drive the propeller to rotate, during the test flight, it actually flew more than a foot high from the ground, and also flew over a small ditch, and then fell.

Xu Zhengming is fine, except for the disgraced one, the helicopter can even continue to be used.

"Yes, yes!"

The fact that this helicopter could fly a foot above the ground was already beyond Ran Min's expectations.

If you can fly away from one foot now, you will be able to fly away from ten feet, a hundred feet, a thousand feet, or ten thousand feet in the future!

Ran Min patted Xu Zhengming's shoulder and said with a relieved face: "Mr. Xu, do a good job, I am optimistic about you!" ”

"Your Majesty Xie appreciates. Just a matter of funding......"

"I'm going to invest more! In this way, Mr. Xu, you will be an academician of the Academy of Sciences in the future, which is equivalent to a Wupin official, and in the future, you will concentrate on the study of this helicopter in the Academy of Sciences. Be sure to make the helicopter fly higher and farther, preferably by a human to maneuver, back and forth, left and right, up and down! On the day of the helicopter's completion, I can give you a marquis! ”

Xu Zhengming couldn't help but be grateful: "Your Majesty's kindness, even if the minister is broken, it will be difficult to repay it!" ”

Ran Min nodded: "You go to Jia Ba to report first." There are a lot of skilled craftsmen in the Academy of Sciences, these people are like you, ingenious and quick-witted, if you work together to develop this kind of helicopter, I believe that the helicopter that can be operated by people and can soar in the sky will definitely appear! ”

"No!"

When Xu Zhengming retreated, Ge Hong said with some puzzlement: "Your Majesty, even if this pile of broken wood can fly, what is the use?" Why does Your Majesty attach so much importance to it? ”

"Haha. Ge Aiqing, don't underestimate this pile of broken wood, if the helicopter is really made up by Xu Zhengming and them in the future, it can be used for military purposes, it can be used for disaster relief, and it will be of great use! Not to mention anything else, with this helicopter, my army can completely throw a rain of arrows, rolling logs, and sulfuric acid on the helicopter, and the resistance we will receive will be greatly reduced! ”

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Chapter 0474 "Helicopter"