"Well, good, good! Sure enough, it's a hero out of a boy, what's your name? ”

Standing in front of Yang Chao was a young man who had just passed seventeen, who came to Xinjiangkou when he was fourteen years old and had been living here for three years.

"My name is Song Sanjin."

"Are you from Shandong?"

The full Shandong accent made Yang Chao guess it at once.

Song Sanjin said: "I am from Shandong, how can the governor of the capital know." ”

Yang Chao smiled: "You can hear it when you listen to the accent, how did you get to Nanjing?" ”

Song Sanjin said: "In the seventeenth year of Chongzhen, he went south with the governor and the crown prince. ”

It was that group of refugees who were finally singled out by Yang Chao and their families, and ordinary people were settled in Huaiyang and Yang.

It's hard to imagine that such a kid invented the method of casting cannons with iron molds.

"Tell Ben how you came up with the iron mold cannon."

As soon as it came to casting cannons, Song Sanjin immediately spread the word, in fact, he thought of this idea soon after he came to Nanjing.

Because his family is not an ordinary craftsman, but a money minting craftsman, his father is a craftsman in the Linqing Money Minting Bureau.

What kind of mold is used to mint money?

It's the iron mold!

There are thousands of copper coins at a time, but it takes half a year to dry a clay mold, and the things cast by the clay mold are too rough, and the texture on the copper coin may not come out.

The iron mold is very suitable, not only clear and recognizable, but also a mold can be used many times, saving time and effort. conAd1();

At that time, it happened that Yang Chao's fleet of transporting cannons sank into the river, and Yang Chao asked the cannon casting workshop to increase its horsepower to cast enough cannons as soon as possible. It is impossible to get a cannon out of it soon.

Song Sanjin, who was only fourteen years old at the time, was assigned to work in the casting workshop with his father because of the ancestral coinage technology. But his father scolded him and told him to talk less, saying that casting cannons can be the same as casting money, and his father swore that these techniques were handed down from his ancestors, and that whatever method was used to cast them, he would die, so that his son should not be too ambitious. To be a craftsman, you have to be down-to-earth and follow the steps to make good things.

But Song Sanjin was very unconvinced, his father didn't believe him, which made him very sad, and he decided to do it himself.

But a person, without money. There were no materials, nothing, which made him very helpless, and he turned to many people for help, such as the master craftsman of the cannon casting workshop, who was also scorned, and no one believed his idea of using iron molds to cast cannons.

Fortunately, Song Sanjin is a moneysmith, and he knows how to cast money. At that time, private money was not banned, so he secretly used the scrap copper in the workshop to mint private money, although the quality was not very good. But it can always be spent, and this private money becomes iron and mold.

But Song Sanjin soon found that his idea was indeed very problematic, the first pot was a complete failure, and after pouring molten iron into the mold, he found that the cannon body and the mold were connected. It has become a lump of iron, and it is inseparable.

The first failure caused Song Sanjin to be widely ridiculed. But he was not discouraged and continued to experiment.

He thought of the method of brushing oil to mint money. Brush the mold with a layer of oil and it won't stick together.

But the cannon still could not be taken out, and the overall mold was completely stuck in the cannon body.

Flip it over and still do it.

Over time, his father beat him several times, but Song Sanjin still did it quietly, and he didn't dare to experiment with great fanfare, so he used other methods to experiment, using mud instead of iron to innovate the method, but he never succeeded. conAd2();

Until again, he went to the candle shop to buy candles for the New Year, when the shop was out of stock, he had to wait at the casting site, when he saw the craftsman who made the dragon and phoenix candles cast wax with two halves of the dock mold, after the wax water solidified, the mold was separated from the middle, and a candle was cast.

This kind of mold, which can be divided into two books, immediately inspired Song Sanjin, and all the problems seemed to be solved.

So he immediately made a last experiment, two halves of the iron mold merged together, after pouring, pull the mold, the gun body is very convenient to take out, and then take out the iron core, a run to cast.

The iron mold can be cast for the second time immediately, and the time to cast a cannon is only the time for the molten iron to solidify, which is equivalent to making the casting once-time, and the clay mold for taking the cannon will be smashed after casting into the old era.

But Song Sanjin's another trouble came, the workshop was still reluctant to use his iron mold, the reason is very simple, the time to cast an iron mold is enough to cast dozens of cannons, the master craftsman does not dare to take risks, and does not dare to guarantee the quality of the iron mold casting cannon, the quality of the cannon is not up to par, Yang Chao's punishment is very large, so the craftsmen including the inspection must be punished, although it is not as serious as the direct killing of the perverted head, but the salary of less than half a year, more than a year, as a cannon casting craftsman Yang Chao gave them a very generous salary, From two taels to ten taels of monthly salaries, the master craftsman can even get twenty taels of silver every month.

"It's too conservative. Qi Craftsman, you are the master craftsman of the entire cannon casting workshop, you should have courage. However, it is also the governor who is too dead to make you dare not innovate. Convey it, and in the future, if there is an innovative technology, if it is less than 10,000 taels, the governor will allow you to test it directly, and report it to the governor if it is more than 10,000 taels. ”

The adoption of new technologies will always be hindered by old technologies.

Qi Craftsman said: "But Dadu Governor, if you use iron molds, what about those clay molds we made before?" ”

Yang Chao said: "Continue to cast cannons, the governor wants more cannons, and as long as the iron mold can be made, the clay mold will not be distressed even if it is thrown." conAd3(); ”

Qi Craftsman asked again: "What about the reward?" ”

"Give and give! Give it right away. ”

After speaking, looking at Song Sanjin's eyes were different, this kid is too capable of tossing, this momentum to do everything for the sake of technology is definitely the potential of inventors and engineers, and it must be supported.

"Sanjin, you are doing a good job, and if you do craftsmanship, you must have this kind of energy. But don't be complacent, and continue to experiment with new technologies in the future. In this way, the official thinks that you are very suitable, you see if there are any children here who are like you and want to play with some new gadgets, you organize them all together to specialize in new technologies. If you have good skills, the governor will not hesitate to reward you, and give you ten thousand taels of silver every year, and you can do whatever you want, how about it? ”

"Ten thousand taels a year!"

Song Sanjin was stunned for a moment, he couldn't think of such a big amount of money.

"How, do you dare to do it?"

Yang Chao said excitedly.

Song Sanjin nodded vigorously: "Dare!" ”

"Okay, you should have this kind of energy, so let's do it, this governor will give you a word, it's called enterprising, Song enterprising! You have to remember not to forget the way to forge ahead. ”

Song Jin was still stunned at this time, and Qi Gongtou suddenly slapped him on the back of the head, knocking him to a stagger.

"You bastard, don't you hurry up and thank the Governor."

Song Jinjin immediately thanked.

Qi Gongtou kicked him again: "Kneel down and kowtow!" ”

As the master craftsman of the workshop, in fact, the head of Qi has a good relationship with all the craftsmen, especially the craftsmen like the Song family, who are both honest and skilled, and they get along well, Song Jinjin is like his own nephew in his eyes, so he took the risk to report what Song Jinjin did to Yang Chao, but he didn't expect it to really happen.

What made Qi Craftsman even more unexpected was that this bastard boy not only really got a huge reward, but also got Yang Chao's words, in the eyes of these simple craftsmen, after Nanjing lost the emperor, Yang Chao was the same as the emperor, so this kind of glory is amazing.

Yang Chao helped Song Jinjin up, and said with a smile: "Enterprising, this governor will send you a few books in the future, you have to read them carefully." ”

What Yang Chao intended to give to Song Jinjin was the first six volumes of the Geometric Originals, which Xu Guangqi and the missionary Matteo Ricci translated in 1606 and printed and distributed in Beijing in 1607.

When Xu Guangqi translated the geometric original, he saw that the book had a rigorous logical system, and the narrative was completely different from the traditional Chinese "Nine Chapters of Arithmetic".

This kind of logical system, which is completely different from traditional Chinese mathematics, made Xu Guangqi very recognized, and believed that "after a hundred years of plagiarism, everyone must learn it".

Let a guy like Song Jinjin, who has the quality of an engineer and an inventor, accept the strict logic system of Western geometry, and the ghost knows what can be made under the action of chemistry, but as long as there is another process like an iron mold casting cannon, it is enough for Yang Chao to return the ticket money.

After the application of iron mold casting cannon, Qi Jiangtou expects that a mold can cast a cannon in three days, ten guns a month, and a hundred molds can have an output of 1,000 guns, as for the quality he does not dare to guarantee now, Yang Chao asked him to continue to test, and the new process should not be adopted immediately, there must be a rigorous test as a support, which is the attitude that process science should have.

After leaving the new estuary, he immediately sorted out what he thought and saw, and immediately formulated measures to reward innovation.

Encourage innovation in their own workshops, allocate 100,000 taels of silver every year, as funds for innovation, where there are craftsmen who want to reform the process, you can apply for funds, if the craftsman feels that the innovation is valuable, you can allocate it, and if you make a good process, Yang Chao will also make additional rewards for the craftsman himself.

At the same time, Yang Chao felt that it seemed that it was time to introduce a patent law, so he immediately drafted a few stripes, notified Huangfeng Mansion, and added them to the administrative regulations of the Nanzhili Metropolitan Governor's Mansion.

The Patent Law is divided into three articles:

First, all unique skills can be patented, and anyone who applies for a patent has the indisputable exclusive right to the patented technology, and anyone who uses this technology must obtain the permission of the patentee.

Second, anyone who wantonly usurps the patentee's patent will be severely punished by law, and his income from illegal patent appropriation will be confiscated, and the patentee's losses will be compensated.

Third, patents are time-sensitive, and from the first day of the patent application, they will automatically expire in the fifteenth year and will become a common technology. (To be continued)

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