"The bed crossbow has been improved and the range is as high as 1,000 steps, and I have a new improved drawing that has been drawn for a long time, but the craftsmen can't make it, and if it can be cast by the lost wax method, it would be wonderful! Xie Guan's teachings. Xie Guan's teachings. ”

Li Gang was very excited, rubbing his hands, if he accompanied Zhao Huan to inspect now, he would go to Lao He to discuss it now.

Zhao Huan waved his hand and said, "Don't worry, don't worry." I've got one more thing here, you can take a look. This is called gear. ”

Zhao Huan took out a book directly from his sleeve, this book was amazing, and it took him 5 points of achievement to change it out, the name is "Mechanical Principles and Mechanical Design".

In his opinion, this book is all about how to draw gears, of course, his understanding of mechanics is extremely shallow, that is, when he used to do manual DIY, he understood some superficial content.

I can't say why, but professional things are left to professional people. Since the Great Song Dynasty Weapons Supervisor is so advanced, it is natural to leave it to them for study.

Of course, he knew the lost wax method, and it was entirely because he liked to do manual DIY that he learned about it, and he once rubbed out a four-stroke internal combustion engine by himself and assembled a railcar to play.

Of course, he has now lost all kinds of materials and tutorial video teaching in later generations, and it is impossible to make an internal combustion engine and build a rail car, which is completely a sweet dream at twelve o'clock at noon.

He looked at the bed crossbow, it was an extremely special machine, if he could combine this kind of cold weapon killing weapon with the mature mechanical theory of later generations, it would be very terrifying to think about.

Zhao Huan handed the book to Li Gang and said, "This book is extremely precious, the only one in the world!" The top secret of the Great Song Dynasty is a secret thing that cannot be publicized. Can Li Shaoqing understand? ”

Zhao Huan handed over the book in his hand, the book on mechanical principles, of course, has been systematically improved and has become more in line with the literary style of the Song Dynasty.

But what Zhao Huan is worried about is not this, but that this book was taken out nine hundred years in advance, will something go wrong?

You can't teach the enemy!

Ready-made examples, Xixia, Liao, and Jin have learned a lot of techniques from the Central Plains, and now the cold forging armor is worn, and the leather lining is very comfortable, and the technology is still confidential at every turn!

It is right to ensure the leading position of the Central Plains Dynasty.

"Top Secret of the Great Song Dynasty?" Li Gang flipped it a few times, looked at it intently for a long time, and then solemnly closed the book and put it in his sleeve.

He held the book with one hand, lowered his head and asked, "Official, you must not let anyone read it?" It can still be shown to some key loyalists. ”

"The scope of this book is unprecedented, and there are so many contents that I need to find a few people to study together." Li Gang just read a few paragraphs, only to find that this book is very different from the books that can be read a hundred times in the past.

"Is it the Armoryman? If so, bring it now, and anyone who has read this book must go through my inquiry. "Zhao Huan is inquiring there, just to see the loyalty through the automatic identification of the system.

"Yes, official. I'm going to find it. Li Gang finished speaking and left.

The planter stretched out his hand to stop it, Li Gang left, he had no one to push the cart, how could he move around!

It's superficial! Li Gang is in his forties, and he is still so reckless, like a child.

"Whether it's the court discussion in the past few days, whether it's the temple, or the Chang Dynasty, I haven't spoken, I don't know what's wrong?" Zhao Huan naturally pushed onto the swivel chair of the Seed Master Road, which was very common.

He is a teenager under the red flag, pushing the wheelchairs of his elders, and he has done it no less.

The seed master was hurriedly ready to speak, but Zhao Ying jumped out directly and said: "Official, you can't do it, you can't do it!" The minister pushes, the minister pushes. You can't do it! ”

What a reason for this!

finally pretended to be forced to follow the example of Zhou Gong Tupu to collect the hearts of a wave of courtiers, but was disturbed by Zhao Ying, the leader of the eunuchs.

Seeing the displeasure in Zhao Huan's eyes, the master said with a smile: "Don't blame Zhao Ying for the official family, he is also for my good, if you touch the car, wouldn't the old man crash into this workshop on the spot, so that he can report the glory of the official family?" It is indeed impossible to do it, the minister is the minister, and the king is the king. ”

The official asked the minister, why the minister didn't speak in the past two days, because the official family has done something in the past two days, and the old man has nothing to say. There is a little problem, but it is also a problem that young people should have, frizzy and irritable, and always want to get things done in one day. It's all good. If the official family can persevere and persist for three years, the Great Song Dynasty can be prosperous. ”

"If the official family can persist for five years, the Great Song Dynasty can recover its prosperity, if Your Majesty can persist for more than ten years and not change its original intention, it is not impossible for the Great Song Dynasty to peek into the Great Food Country."

Big Food Country?

[Reminder of historical events: Great Food Country: The great enemy of the Tang State in Central Asia. That is, the super empire spanning the three continents of Asia, Africa and Europe, the Arab Empire. 】

This......

Zhao Huan's eyes changed when he looked at the cultivation master, and the courtiers of the Great Song Dynasty praised people, are they all so good at boasting?

"My Great Song Dynasty is rich, and I can't help but trade, so commerce and trade are developed, and the annual harvest is more than 100 million, this is still the time when there is a lack of Yanyun Sixteen Prefectures, if Yanyun is recaptured, this annual income can be increased."

"It takes a lot of money to fight a war, and the former Han and Tang dynasties all suffered from the loss of underdeveloped commerce and trade, and there was no money to fight a war, so they only relied on the flourishing branches and leaves. Our Great Song Dynasty has more bookish spirit, less heroic time, but also has flourishing branches. The seed master said with great emotion.

He traveled thousands of miles, from Qinfeng Road to this Bianjing City, consuming some of his last vitality, although he could still support it for a while, but he might not be able to see that time.

Dying old too.

"The official family, everyone has arrived, a total of ten people." Li Gang hurriedly came back, dragging a few weapons supervisors.

Zhao Huan swept around, and the loyalty of most people was within the range of his acceptance, and his loyalty to Da Song exceeded 90 points. It's already very qualified.

It's just one of them, which makes his eyes narrow.

[Character introduction: Liu Yi: Ziyizhi, with words, Jingshi, mathematician. ] When Yuanfeng was three years old, at the age of nearly fifteen, he completed a "On the Ancient Roots", put forward the method of finding the roots of quadratic equations, and used the method of increasing and multiplying the opening method, systematically using the relevant concepts of positive numbers, negative numbers, integers and decimals, and also implemented the method of increasing and multiplying opening as the numerical solution method of general arbitrary higher order equations. 】

[In the Northern Song Dynasty, there were a total of 12 mathematics textbooks, including "Sun Tzu", "Wu Cao", "Nine Chapters", "Sea Island", "Zhang Qiujian", "Xiahou Yang", "Zhou Ji", "Five Classics of Calculation", "Fixation", "Ancient Search", "Remembering Remains", and "Third Equal Numbers", and a total of 14 years of study before they could participate in the arithmetic subject competition. 】

[China pays attention to harmony, foreigners pay attention to distinction, in Zhu Cheng Lixue, after the eight shares of scholars, mathematics and science have become strange skills, craftsmen have become the ninth rate. No one studies mathematics and science, no one explores the mysteries of heaven and earth. 】

Zhao Huan looked at Liu Yi in a daze, feeling that the Great Song Dynasty that he came to was the last glorious moment when mathematicians and science could still ascend to the Hall of Elegance?

"Official, is this person inappropriate?" Li Gang asked stunned.

This man was a good friend of his, and he helped out in the Ordnance Warden, and he was only helping him design something.

This person doesn't like careers, likes to paint, and is especially good at fish, insects, birds and beasts.

He also helped Emperor Zhao Ji paint for a period of time, and now he is at home, and he is specially hired to help him calculate the range of weapons and other mathematical things.

Zhao Huan shook his head and said: "There's nothing wrong with it, it's just that this person can study this "Geometric Original" and "Tongwen Calculation Finger", which are also top secrets of the Great Song Dynasty." Cultivating inductive mathematical ideas may have a lot of gains? ”

The value of the two books is only 1 achievement point in total, but Zhao Huan's mechanical principle is as high as 5 points!

Liu Yi is also in his forties now, if it weren't for Li Gang's constant begging, he would definitely not be involved in anything in this Zhao and Song Dynasty, and he would have been desperate for the Great Song Dynasty.

When he took the two books, he was still slightly dismissive. What good things can this petty Zhao family have?

After he turned it over twice, he directly found a stool, sat down, and studied it carefully.

Liu Yi, who almost kicked in the door of calculus, may get different answers from two books, or he may not get anything from both books.

Zhao Huan looked at the others and said, "The book "Mechanical Theory" that you want to study, remember not to pass it on. Li Gang, you are responsible for keeping an eye on them. ”

Ninety points of loyalty, falling to 0 points of betrayal, I'm afraid it will take a long time.

It's probably because things gather like and people are divided into groups, the people around Li Gangman are quite loyal, yes, give him a thumbs up.

Li Gang nodded yes, he was originally a civil official, and he didn't love these machines too much, in comparison, he preferred to help the world.

The remaining nine people are the best at this. But hearing and seeing my interest in machinery has become instinctive.

"When the study is finished, compile a teaching book, and when the Jin soldiers retreat, the craftsman must be arrested, and the people in the province will not be able to get out of the house with iron floating slaughter and abduction horses, and they will be thrown into the desert in shame."

Zhao Huan found that at this point in time, there were still many things that could be done, such as making mathematics and mechanics systematized and becoming a project of the imperial examination.

Ah, science! It is the first productive force!