"This is the hope of Datang in the future!"

Guo Rong's words almost choked Li Yu to death.

Li Yu understood Guo Rong's words, but if he wanted to break the sky, Li Yu couldn't understand why these black stones could become the hope of the Tang Dynasty.

Looking at Li Yan's puzzled and confused eyes, Guo Rong, who knew that he couldn't explain, asked people to prepare all kinds of materials needed, and directly called Lan Miao, the chief technical elder of his engineer battalion, over.

Then, under Guo Rong's description, Lan Miao used an iron pot to simulate a boiler, and made a flywheel, lever and other connecting devices with wooden rods and blocks, and directly in front of Li Yu, he saved a simplest and simple version of the steam engine.

As the bottom of the iron pot was ignited, the black charcoal was directly ignited, the water in the iron pot was boiled, and the water vapor pushed the lid of the pot open, pushed the link rod, and drove the lever, so that the moment the flywheel turned, Lan Miao, who was originally suspicious, became extremely excited as if he had discovered a new continent.

Immediately after, Lan Miao began to manually improve what he had just saved up.

Halfway through the busy work, Lan Miao found that she didn't seem to be busy alone, and looked at the side, several elders around her could obviously only watch the excitement, and Mao couldn't help, so in desperation, Lan Miao began to shake people.

In less than half an hour, He Mang, Wu Pengjun, Xu Haolin and other elites of the engineer battalion who were good at machinery gathered together.

In fact, not only did they come, but they also brought their own guys with them.

In the stunned gazes of Li Xu, Guo Rong, and Zhang Jiaxuan, Wu Pengjun came up and opened a hole in the lid of the pot first, and then the whole room "Ding Dong, Ding Dong," these guys directly regarded this place as their experimental workshop.

An hour later, after Li Xu, Guo Rong, and Zhang Jiaxuan were stunned, and after boiling a whole pot of hot water, this simple version of the steam engine, which could only barely push the movement of the wooden pole, was already working stably.

Listening to the whining sound coming from the hole in the lid of the pot, and looking at the levers and flywheels that rotated under the impetus of steam, Li Yu had the feeling of seeing a miracle.

He watched the whole process, and he knew exactly how the sappers did it, but it was this kind of thing he was familiar with that that brought about this amazing effect.

"Guo Rong, what can this thing do? What is the value? ”

"Your Majesty, the minister just happens to know, and what exactly can be done depends on what Lan Miao and they can research."

"Lan Miao, what's the use of this thing?"

"This ......" Li Yu suddenly asked, Lan Miao was also stunned, but soon, Lan Miao reacted.

"Your Majesty, I think the purpose of this device is to use the water vapor produced by combustion to exert force and do work! For example...... For example...... For example, when striking iron or crafting weapons. ”

"Tell me about it!"

"Your Majesty knows that when it comes to striking iron and crafting weapons...... Molten iron is formed, injected into the mold, and repeatedly beaten during the cooling process to remove the impurities inside......"

"Now the limit on the production of Datang pig iron and steel is the temperature, the second is the strength of the forging ......, manpower will be tired, cattle and horses will be tired, even in the river, the water will dry up sometimes......

"But Your Majesty, this kind of thing that General Guo called a steam engine, as long as there is coal and water, it can run all the time, although it is not perfect now, but ......, it can even be forged continuously for twelve hours a day, this kind of efficiency is definitely not comparable to manpower, and it ...... in the process."

In all fairness, Guo Rong felt that Lan Miao had already told it very well, but Li Yu was still a little confused, after all, he had never seen this thing of striking iron, and seeing that the Emperor Taishang didn't understand, Lan Miao pondered for a while and gave another example.

"In addition, Your Majesty, you have seen our improved catapult, in order to make the catapult move, we have equipped the catapult with wheels, in order to save effort, faster and better loading heavier stones, we have also added a device that uses the principle of leverage."

"Yes, these two improvements are very good, you shine in the first battle of Wuzhou, this is what I have seen with my own eyes."

"Your Majesty, to be honest, we are actually not satisfied with these two points, whether it is relying on manpower to push the catapult or relying on the loader, the efficiency is not high, and it requires a lot of manpower!"

"If you combine this thing with a catapult, the catapult can move on its own; If you can use the power of this steam to fill the stone...... As for how to combine ......"

Li Yu definitely didn't know how to smelt steel or how to build weapons, but about catapults, Li Yu saw it with his own eyes.

What originally happened in front of his eyes and seemed to be a little magical, after combining it with the catapult he knew, Li Yu understood.

In fact, Li Yu not only understood, but also seemed to have seen a powerful Tang army that would be completely covered in steel in the future as described by Lan Miao that could increase the efficiency of smelting and forging armor stomachs exponentially.

Compared with Li Yu's surprise, amazement, and disbelief, after hearing Lan Miao's words, Guo Rong's heart was filled with surprise.

The steam engine has a very wide range of uses, and it is not surprising that it can think of smelting and forging, but Lan Miao actually thought of loading the steam engine into the car, which is a bit too much!

Let's try it soon, everyone. 】

The car doesn't work though!

Of course, the car is not absolutely impossible, at least before the appearance of the internal combustion engine, the car was in vain, mainly because the efficiency of boiling hot water is too low, resulting in too large a volume, the car is simply impossible, the train is almost the same, and the train is to repair the tracks......

It's just that the car can't do it, but the ship can, if you remember correctly, during the First World War, the capital ships of both sides were still using coal during the Battle of Jutland......

"Your Majesty, if it is put on the ship after improvement compared to the catapult, the minister thinks that the big ship of the ocean will be ......."

If this thing can be used on the ship after improvement, Emperor Taishang Li's eyes lit up, and the Americas in Guo Rong's mouth were ......

"Lan Miao, Wu Pengjun, Xu Haolin, you don't want to go to the north this time, you now take this set of things and return to Chang'an immediately, go to the technical supervision, and work with the craftsmen of the technical supervision to develop it as soon as possible."

As he spoke, Li Yu stood up excitedly and continued while pacing.

"I will give a decree to the Ministry of Development and Reform, regarding the development of the steam engine and the same unlimited funding as Champa rice, and the development of the steam engine must be absolutely confidential, except for relevant people, etc., it is absolutely not allowed to spread it, but anyone who snoops and leaks secrets will be punished by the nine clans!"

Seeing that Li Chan was moved, Guo Rong's eyes also lit up, Li Chan is in such a state, Guo Rong believes that Li Chun, who has similar thoughts to Li Chan, is likely to have such a reaction.

With the full support of these two emperors, the so-called industrial revolution is destined to open in the Tang Dynasty, as for the rest, go to your uncle's Columbus, Magellan, and Dagama, the great geographical discovery, discover your uncle, there is only one Tang in the world!

………………………………………………

After Guo Rong returned, neither his judgment of strategy nor the coal and steam engine he brought disappointed Li Yi.

Especially the elites of the Changying Military Engineer Battalion such as Lan Miao and Wu Pengjun saved up a simple version of the steam engine, which can directly enhance the hard power of the Tang Dynasty, which brought a huge surprise to Li Yu.

However, there are always pros and cons to everything, starting from the return of Guo Rong near noon, discussing the military, judging the situation, discussing the military strategy, and deploying the northern expedition, the emperor has dragged his tired body for three hours.

And the episode of the steam engine, which pushed the time to sunset all of a sudden, until half an hour after the lamp, determined their own thinking and acting command, Lan Miao and the others were ordered to leave.

From close to noon to sunset, nearly five hours were almost uninterrupted, which also brought a great burden to Li Chen's already bad body.

Rao was from the second hour, Zhang Jiaxuan Daoye has been following behind Li Xu, either applying needles or massage, and by the time Lan Miao left with the prototype of the steam engine, Li Xu's body was already exhausted to the limit.

While looking at Zhang Daoye's acupuncture inherited from Sun Simiao, while discussing with Guo Rong the relevant details about Fugu's coal and steam engine, when the specific discussion was completed, the exhaustion on Li Yu's face was already visible to the naked eye.

Waiting for a simple porridge to be sent in, Guo Rong retired, while Zhang Jiaxuan was still continuing to regulate Li Chen's body, looking at Li Chen's face that turned pale again after being excited, Guo Rong's worries arose.

Originally, Guo Rong avoided asking about Li Yan's physical condition, but today, from the reminder at the beginning to the physical condition he showed later, Guo Rong couldn't help but ask no matter what.

After all, this is not only related to his own net worth and life, but also to this Anxi, Guo Rong has never forgotten those old men.

After all, this is the imperial era of China, the era of monarchy above all else!

In such an era, it is not impossible to do anything without the support of the supreme ruler, but it is not an ordinary difficult road.

Take Guo Rong himself as an example, after arriving in Chang'an, if he hadn't met the Emperor Li Yu for the first time and obtained Li Xu's absolute support, Guo Rong knew that he would not have been able to reach his current level and state at all.

Guo Rong knows that he is the lucky one, and in history, unfortunate people abound......

Everyone knew that Yue Fei was on the Northern Expedition, and was recalled by the "Twelve Gold Medals" when he was one step away from Kaifeng.

But when he didn't know that Yue Fei was still a nobody, Grandpa Zong Zezong had already led the Song army to recover and Kaifeng, Tokyo.

After recovering Kaifeng, during his stay in Tokyo, Grandpa Zong gathered his troops and horses, rectified the defense line, and restored the people's livelihood, so that the Central Plains after the Jingkang Revolution was reborn.

While reorganizing the army for war, on the other hand, he soothed Gaozong Zhao Gou, advocated returning the capital to Tokyo, and formulated a strategy to recover the Central Plains.

However, during his stay in Tokyo, Grandpa Zong wrote to Gaozong Zhao Gou more than 20 times, but none of them were accepted.

He was sick because of his ambition, and he died of three shouts of "crossing the river" on his deathbed!

First there was Zong Ze, and then there was Yue Fei, an emperor was incompetent, and he affected the Chinese people, nothing more than this!

Compared with Zong Ze and Yue Fei, Guo Rong is not unlucky, and Guo Rong knows very well that everything about himself now actually comes from Li Yu, and he can now be regarded as enjoying the treatment of a top minister.

To tell the truth, the current son of heaven Li Chun may be younger, and his wrists are not as hard as Li Yu, but there is no difference between wisdom and wisdom.

Guo Rong believes that Li Chun will also trust himself and reuse himself, but after all, once a son of heaven and a courtier, he will never be able to do the same as Li Yu in front of Li Chun......

That night, Guo Rong found Zhang Jiaxuan alone for the first time.

And Zhang Jiaxuan not only did not have any surprise after seeing Guo Rong's visit, Guo Rong even saw a sense of relief on his face, and doubts were doubts, since he came, Guo Rong did not have any pretenses.

"What is the physical condition of His Majesty Daochang Zhang?"

Guo Rong was straight to the point, however, after hearing Guo Rong's question, Zhang Jiaxuan put on a playful smile.

"You really want to know?"

"It's nature!"

"Actually, I've always been curious, why haven't you asked?"

"I feel that His Majesty's state is very bad today, although a thousand will be tired and weak, but not to the extent that it is today, Your Majesty's body has too much to do with it, and I can't ...... it."

"Hehe, actually, I've been waiting for you to come!"

“？”

"Don't be surprised, Your Majesty has long instructed me that if others ask about his physical condition, they must not reveal half a sentence, but if you ask, just tell the truth!"

"In fact, Your Majesty's physical condition can neither be said to be good nor bad, but out of a state that makes me very confused, so I have been waiting for you to ask me! As a result, the people I have to wait for don't come, and the people who don't wait are endless, and you say that you don't come to ask, how can I tell you? ”

"Uh...... This ......"

"It stands to reason that when Your Majesty had a stroke three years ago, if you hadn't caught up with the poor road to come to Chang'an to replace the degree, I'm afraid that Your Majesty would have been in control of Bintian at that time, and he wouldn't have survived at all."

"General Guo don't be surprised, Your Majesty's situation was extremely dangerous at that time, it just so happened that I came to Chang'an to change the degree, Sun Xianshi has speculation and treatment plans for stroke, and the silver needles and magnets I passed down from Sun Xianshi are always carried......"

"The situation at that time was extremely dangerous, Your Majesty had a stroke, and the imperial doctors may not be really at a loss, but no one dared to do it, and when the poor road arrived at the East Palace, ......"

Under the narration of Zhang Jiaxuan, a first-hand witness, the stunned Guo Rong finally understood many things, such as why Ju Wenzhen forced Li Yu to abdicate, and why he still put Li Yu to death after abdication......

It can be said that the contradictions between Li Yu and the eunuch group are irreconcilable, and on the contrary, Li Chun's attitude towards the eunuchs is very soft......

"There is one thing, General Guo will not think that His Majesty is naturally kind, gentle and elegant, and he is born to speak at such a speed and tone."

"You mean, Your Majesty ...... after a stroke"

"Yes, although Your Majesty was saved by his family at that time, his ability to speak and act has greatly deteriorated, and there was even a period of aphasia!"

"The only thing that surprised me was that His Majesty's thinking ability has not changed at all, but in many cases, His Majesty's speed of speech cannot keep up with the speed of his thinking, which makes Zhang Jun think that the speed is very slow."

"However, Your Majesty has been blessed by misfortune, which will cause Your Majesty to have more time to think before the words are spoken, and instead give full play to Your Majesty's advantages!"

"Saying so many words, in fact, Your Majesty's body you don't need to worry too much, I know what you're worried about, Your Majesty's state today is really poor, that's because of the high degree of emotional turn, coupled with the five-hour busyness, although Your Majesty's body is very tired, but I can feel that Your Majesty's whole state and mental state are very good."

"However, I suggest that in the future, you should not let Your Majesty be so tired for a long time, a level of fatigue like today is extremely unfavorable for Your Majesty."

"By the way, there is another thing that must be told to you, the Emperor Taishang wants to follow your army to the north together, if you don't come today, I will also go to you, after all, this is for you to decide, how to think about how to deal with it?"

"Your Majesty, how can you follow the army north to the grassland in this ice and snow!"

Guo Rong refused directly without thinking about it, but Zhang Jiaxuan smiled slightly.

"Don't be in a hurry to refuse, if you can ensure safety, it may not be a bad thing to let Your Majesty feel the stimulation of this environment. Don't worry, listen to me......"

Waiting for Guo Rong to settle down, Zhang Jiaxuan said, and in Guo Rong's stunned gaze, he began to put out a bunch of belongings that never left him, including a set of silver needles inherited from Sun Simiao, a complete set of magnets, a few glazed clay pots, and some things that Guo Rong didn't know very well.

"When the ancestor was alive, he had seriously studied the disease of stroke, and there were many records of similar diseases in the classics left by the immortal master, and it was speculated that the records were quite comprehensive and could save His Majesty, which has a great relationship with these records of the previous Sun Immortal Master, so it can be said that I tried according to the records of the Sun Immortal Master, and constantly adjusted."

"This silver needle, as well as this set of magnets, are all inherited by Master Sun, and there is a set of special acupuncture and moxibustion methods, I think the state of the Emperor Taishang will get better, and it is related to this."

"In fact, in fact, when His Majesty went to Longnan last year, I initially dissuaded him, but His Majesty said that he had only been to Fengtian City once in his life, and he had never left the pass, he wanted to see more of the mountains and rivers of Datang before he was alive, and he didn't want to die on the sickbed!"

“……”

"In the end, I can't resist Your Majesty, considering that Longnan is basically safe, I will finally go out with Your Majesty, and you will know the rest."

"The long journey has made His Majesty's body very tired, but under the combined effect of various other factors, His Majesty's physical functions have recovered somewhat, hey, General Guo, what's wrong with you?"

What's wrong with Guo Rong, Guo Rong was stupid, what Zhang Jiaxuan said today once again brought a great shock to Guo Rong.

Before the crossing, there were patients who had a stroke, and there was a lot of understanding about stroke, originally Guo Rong suspected that Li Yu had a stroke, but there was no evidence.

Moreover, Guo Rong did not see a crooked mouth, slanted eyes, facial paralysis, paralysis, spasms, etc., on Li Yu's body, and obvious signs of sequelae of stroke.

Now it seems that this is really the credit of Zhang Jiaxuan, or Sun Simiao, acupuncture, magnets, and biological stimulation are actually the recovery and treatment of stroke, of course, there is one point that needs to be confirmed by Guo Rong.

"This, Zhang Daochang, if you use a silver needle, it won't be bloodletting for Your Majesty!"

"Hey, how do you know, most of the time it's just to stimulate acupuncture points, but sometimes it does need to be bloodletted, such as ......"

Good guy, Guo Rong knows, in the words of later generations of medicine, Li Yu This is a hemorrhagic stroke!

As far as the medical conditions of the Tang Dynasty are concerned, Guo Rong can only say hehe, if he is lucky to live, there is a high probability that he will be paralyzed.

As a result, Li Yuji had his own natural appearance, and the luck against the sky sent Zhang Jiaxuan, who inherited the mantle of Sun Simiao, to him, and saved his life and political career in a fairly standard way.

Now that he knows the symptoms, Guo Rong naturally has what to do, after all, Guo Rong's experience in taking care of the elderly in his family is too rich.

To be honest, winter is more dangerous for Li Yi's hemorrhagic stroke, because the temperature is low in winter, blood vessels are constricted, and blood pressure rises more likely to cause hemorrhagic stroke, but can this be difficult for Guo Rong.

The next day, Guo Rong specially found the Emperor Li Chan, and after three chapters of the law, the Emperor finally got his wish.

This is not without a price, though.

In order to ensure that there would be no problems with the Emperor, the elites of the engineer battalion led by Lan Miao began to build a special carriage for the Emperor overnight.

In order to ensure the warmth of the emperor, this carriage used a double-layer body, filled with a large amount of cotton and other materials in the middle, and equipped with a large number of warm, cold, and ventilation devices.

In order to reduce the degree of exhaustion of the Emperor Taishang, after Guo Rong suggested and commanded, the craftsmen directly saved dozens of bullets and yellows, so that the whole carriage crossed the high slopes and low-lying places, as if walking on the ground.

In order to prevent accidents, we even prepare a double copy of the yellow for changing at any time.

However, the cost of all this was that the time of the expedition was forcefully postponed by about seven or eight days.

In September, a mixed army of 20,000 left Fengzhou and entered the Monan grassland.

In late October, after only two months of long marching and commanding, this army crossed the desert and arrived in the southern part of the Mobei grassland, less than 300 miles away from the Qibi Division.

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