After arranging the production of flintlock pistols, Chongzhen went straight back to Guozijian.

The flintlock pistol had been successfully built, and now it was the turn of the steam engine to be developed.

Finally, there is some free technology tree, and Chongzhen plans to order a few more things at a time.

However, Chongzhen also knows very well that the steam engine and the flintlock pistol are not the same concept at all.

There are only a few main parts of the flintlock pistol, but there are hundreds or thousands of parts for the steam engine.

And the flintlock pistol can cross the river with the technology of the arquebus, but the steam engine is a new thing, and no craftsman in the whole Ming Dynasty knows how to build the steam engine?

Chongzhen also only knew how the steam engine worked.

The working principle of the steam engine is to use the expansion of water steam to push the flywheel to rotate to do work.

There are three main components of the steam engine, the first is the flywheel and transmission mechanism, the second is the cylinder and reciprocating valve, and the third is the boiler.

Making a flywheel is certainly the easiest.

It is nothing more than turning sand and then casting and forming.

Balance doesn't matter, just turn around.

The transmission mechanism that connects the flywheel is also not technically difficult.

Find a few skilled old blacksmiths, even the bearings can be built for you, it is nothing more than spending a little more time, the bearings can be built, and the hinges are even more fine.

There should be no problem building a boiler.

The boiler is simply a vessel, the bottom can burn, after the water in the furnace chamber is boiled, it will enter the cylinder through the pipe and control valve, and then push the piston.

There is tapping technology, and there is no technical difficulty in making valves.

There is no problem with whether the boiler is rolled with iron plates or directly cast into waves.

The most difficult thing to make is undoubtedly the cylinder and the piston in the cylinder, but strictly speaking, it doesn't seem that it can't be done, it is nothing more than letting the old blacksmith polish it little by little.

With a little more time, you can always polish the qualified cylinders and pistons.

As long as the first steam engine is built and turned, the rest of the things will be easier, because with the steam engine, it is no longer a problem to build an industrial machine tool.

Chongzhen first drew the flywheel mechanism, cylinder, piston and furnace respectively.

Then try to connect the flywheel with hinges and connecting rods to the cylinders and control valves.

When the steam enters the left chamber of the cylinder and pushes the piston to the right, the connecting rod will push the flywheel, when the connecting rod and the force arm acting on the flywheel become a straight line, the connecting rod will also lose its thrust, but the flywheel will continue to rotate under the action of inertia, and then push the piston back through the connecting rod, at this time the steam has to enter the right chamber of the cylinder.

Thinking of this, Chongzhen immediately opened a hole in the left and right chambers of the cylinder, and added a slider on the top.

After thinking about it, I opened a cavity under the middle of the slider and an exhaust hole in the middle.

In this way, the steam that has gradually cooled down after the work is done can be discharged, and the new steam can enter the cylinder.

The slider is then connected to the flywheel by a connecting rod, but in a staggered direction from the piston, which is on the far left when the piston is on the far left, and on the far left when the piston is on the right.

Chongzhen briefly simulated the reciprocating motion of the piston in his mind, and felt that it should be possible.

This was a bit unexpected by Chongzhen, he thought that it might take ten days and half a month to draw a sketch of the principle, but he didn't expect it to take only half a day to draw it.

However, this also has to do with the fact that the principle of the steam engine is too simple.

But in fact, the mechanical principle is often very simple, and the difficulty lies in piercing the window paper.

Before piercing this layer of window paper, the world can't come up with something that never exists even if they want to break through the sky, but once someone pierces this layer of window paper, they will find that it is nothing more than that.

There was no problem in determining the principle, Chongzhen began to draw formal drawings again, because there was no pencil, he could only use a quill pen, so once he made a mistake, he could not modify it, so he could only invalidate it and draw it again.

For the next few days, Chongzhen kept drawing without leaving home.

Flywheels, cylinders, pistons, bearings, connecting rods, boilers, iron pipes, sliders, etc., Chongzhen drew fake three-dimensional drawings and dimensions, and sometimes had to add sections.

Chongzhen also thought about drawing three views directly, but no one could understand it.

Teach these illiterate blacksmiths of the Ming Dynasty to look at three views? Forget it.

It took almost ten days for Chongzhen to draw a complete sketch of the steam engine.

Once the drawings were drawn, it was time to find a suitable person to build the steam engine.

There are not many scientific literate talents in the Ming Dynasty, Fang Yizhi is one, and Song Yingxing is also one.

Except for the two of them, I'm afraid there is only Xu Guangqi, but it's a pity that Xu Guangqi is dead.

Just as Chongzhen was about to send someone to summon Fang Yizhi and Song Yingxing to come, Gao Qi sneaked into the inner hall and said, "Holy Lord, Lord Fang and Lord Song ask to meet." ”

"I was looking for the two of them, but they sent them to the door themselves." Chongzhen smiled and said, "Xuan." ”

Gao Qiqian immediately shouted at the outside of Yilun Hall with a sharp voice: "Xuan, the Ministry of Internal Affairs has given the matter to the Chinese side Yizhi, and the Ministry of Internal Affairs has given Song Yingxing an audience in the matter. ”

Fang Yizhi and Song Yingxing quickly came in.

The two were followed by a few scholars.

The scholars still held a thick stack of books in their hands.

"The minister is wise / Song Yingxing knocks on the saint, and the saint is blessed with Jin'an." Fang Yizhi and the two bowed to worship.

"Flat." Chongzhen shook his hand, pointed to the stack of books and asked, "This is the textbook you compiled?" ”

"Exactly." Fang Yizhi said, "It took more than two months, and finally lived up to the Holy Order, compiled the textbook catalogs of various disciplines, and invited the Holy Lord to take a look." ”

Chongzhen immediately ordered the scholar to present the book.

Then pick up the first textbook above, which is a history textbook.

It's not bad, the way of writing the history of the dynasties is written, starting from the time of the Three Emperors and Five Emperors, and a lot of small stories have been added, and the students of Guozijian should like to read such history textbooks.

It's a pity that there is only a table of contents, and I can't see the whole book.

If you want to do it all, you need to add details according to the table of contents.

It's not a task that two people can do.

The second textbook is a medical textbook, which is divided into three parts: medicine, consultation, and Jinchuang.

Fang Yizhi pointed to the medical textbook and said: "Holy Lord, this medical textbook catalogue was not compiled by the ministers, but was compiled by Fu Shan in the medical department and Wu Youke in the matter. ”

"Well, that's good." Chongzhen is quite satisfied with the medical textbooks.

Flipping to the end of the Jin Chuang, Chongzhen found a bigger surprise.

"Jin Chuang's intestines are broken? Jin Chuangzhu's symptoms? Authentic surgery? Chongzhen couldn't believe it, in his impression, Chinese medicine seems to only have internal medicine, but after reading this textbook, he found that this is not the case at all, it turns out that there is not only surgery in Chinese medicine, but also quite advanced.

Jinchuang intestinal severance chapter introduces intestinal anastomosis in abdominal surgery.

Jin Chuangzhu's syndrome also details the surgical operation of broken bones and renewal.

The Authentic Surgery chapter even details the anesthetic before the surgery - back vanilla powder!

This is really a surprise, but the science of Chinese medicine is broad and profound, and it is useless to dabble in a cursory way, so it is necessary to set up a medical school in Guozijian to train doctors.

The other students of Guozijian do not need to study medicine.

It seems that Fu Shan and Wu can come to Guozijian again.

While thinking like this, Chongzhen continued to read the textbook.

But when he turned to the third textbook, Chongzhen's brows furrowed.

Because this is a mathematics textbook, and it is a routine with ancient books such as nine chapters of arithmetic.

It is that there is no addition and subtraction, multiplication and division, four mixed operations, fractions, algebra...... This kind of writing from shallow to deep, but up to the solution of specific application problems.

Chongzhen simply flipped through it, and there were almost hundreds of questions.

And these hundreds of questions are not from shallow to deep, but the difficulty is randomly distributed.

If you open physics again, it is almost a simplified version of physics knowledge, that is, a piece of knowledge, which is completely unsystematic.

Chemistry is also similar, it is a small knowledge, that is, the heavenly creations, physics knowledge and some ancient metallurgical knowledge have been screened.

Seeing this, Chongzhen's brows had become a pimple.

Such teaching materials are not systematic, and they are useless at all.

It can also be seen from here that the empirical disciplines of Chinese civilization are still very powerful.

However, the discipline of logic system is outrageously weak, which is the main reason why in modern times, Chinese civilization has not made much achievements in mathematics, physics, chemistry and other disciplines.

It seems that the textbooks of mathematics, physics, and chemistry can only be counted on Bumig, and hopefully the foreign priest will be able to fool Pascal and Descartes.

At this time, Chongzhen missed Tang Ruowang even more.

John Tang is really knowledgeable, astronomy, mathematics, physics, chemistry and even medicine, and his attainments are quite shallow, which can be called a great talent.

Writing textbooks was a piece of cake for him.

It's a pity that John Tang chose to stay in Beijing.

I don't know if Jiannu will reuse Tang Ruowang?

If Dolgon had the wisdom to know people and reuse John Tang, I'm afraid it would be a bit of trouble, because John Tang really has the ability to make Jiannu's firearms level a big step.

If so, we will truly enter the age of firearms!

From now on, it will be a war of guns and steel.

……

"John Tang, this is the new almanac you wrote?"

Dolgon looked solemnly at the thick stack of almanacs that John Tang had just presented.

Since ancient times, Chinese civilization has paid attention to respecting the ancestors of heaven and law, and Dolgon was deeply influenced by Han culture, and also attached great importance to the compilation of almanacs, because almanacs represent heaven and heaven's will!

A dynasty is not an orthodox dynasty if it does not even have its own almanac.

Therefore, the first thing Dolgon did after entering Beijing was to find someone from Qin Tianjian to rewrite the almanac.

It took more than a year for John Tang to finally compile 108 volumes of the New Almanac on the basis of the Chongzhen Almanac and present it to Dolgon.

"Back to the Imperial Father, His Majesty the Regent." Tang Ruowang said extremely respectfully, "This is the new almanac specially compiled by the minister for the Qing Dynasty, with a total of 108 volumes, and please ask the Holy Judge." ”

"Okay, I'll find time to read this almanac as soon as possible."

Yes, Dolgon has begun to openly call himself me, and since the little emperor of Shunzhi calls him Emperor Ama, what reason does he have not to call himself me? It doesn't make sense.

And Bumu Butai, who is also his queen now.

Now, Dolgon is actually just one step away from the enthronement ceremony.

But whether to take this final step, Dolgon was a little hesitant.

Mainly because the little emperor of Shunzhi and Bumu Butai are too docile, so it seems that maintaining it like this seems to be a good result, because even if he ascends the throne, he does not plan to abolish Shunzhi.

Yes, Dolgon has changed his mind, and he no longer thinks about making Duoduo the emperor's taiji, or succeeding one of Duoduo's sons as his stepson, and then making his stepson the crown prince, how much better is that than directly making Shunzhi the crown prince? Maybe Shunzhi is not more filial than him, but Shunzhi is really filial to him now.

Sometimes Dorgon even had the delusion that Shunji was his son.

John Tang said again: "Your Majesty, the regent, the imperial father, the minister still has two books to offer. ”

After speaking, Tang Ruowang took out two thread-bound books from his sleeves and said: "These two books, one is the fire attack contract, and the other is Kunyu Gezhi, of which Kunyu Gezhi has a total of twelve volumes, and the minister only brought the first volume this time. ”

"Fire Attack Pact?" Dolgon's eyes lit up and he asked, "Introducing Western firearms?" ”

"Yes, the Fire Attack Deed mainly introduces Europa's artillery technology." John Tang said, "This book is the translation of the Prussian mining and metallurgist Agricola's "Complete Book of Mining and Metallurgy", which introduces a large amount of metallurgical knowledge in detail, and if this book is promulgated, it can greatly improve the level of mining and metallurgy in the Qing Dynasty. ”

Dorgon's heart moved when he heard this, and then he asked, "John Tang, do you know firearms?" ”

"I understand a little." Tang Ruowang smiled slightly, and said, "I don't dare to hide it from the emperor's father, His Majesty the Regent, the minister once supervised the construction of cannons for Emperor Chongzhen of the Ming Dynasty, and its performance is far superior to other artillery." ”

Dolgon was overjoyed when he heard this, and now he had found the treasure.

Although Kong Youde and they can also cast cannons, they can only draw scoops based on gourds, and let them improve the performance of the red-clothed cannons, which is beyond their ability, I hope that Tang Ruowang will not let him down again.

Then there is the improvement of the arquebus, the reason why the southern expedition failed, according to Duoduo's account, is mainly because the firearms of the Ming army are too strong, especially the tiger squat cannon and Lu Mi gun.

At that moment, Dorgon asked, "John Tong, can you make a cannon as light as the Tiger Squat Cannon, but more powerful?" And is it possible to make a Western gun that is more powerful than the Rumi gun? ”

Tang Ruowang thought for a while and said: "The same artillery as the tiger squat cannon, the minister has not seen it in the West, but the structure of the tiger squat cannon is flawed, the minister can try to improve it, I believe that after the improvement of the tiger squat cannon, its lethality must be better than the tiger squat cannon of the Ming army, as for the Lu Mi gun......

After a short pause, John Tang said again: "In fact, there is a better gun in the West, called a flintlock pistol. ”

"Flintlock pistol?" Dorgon asked, "This flintlock pistol you speak of is more powerful than the Rumi Gun?" ”

"Yes, more powerful than the Rumi." In order to win the permission to preach freely in Beizhi, John Tang really took out all the reserves at the bottom of the pressure box.