Zhao Yun's army sent the war report with a fast horse, and Liu Chan was overjoyed when he heard this, and immediately decided to hurry up and send troops.

The main army of the Han army of 50,000 people went out of Yangping Pass, took the Qishan Road all the way to the north, and swooped directly towards Tianshui.

Although Qishan Road is known as the main road, it is only slightly easier to walk than several other Shu roads.

This rugged mountain road caused a lot of pressure on Liu Chan's army's march, and also brought great trouble to the logistics of transporting grain, grass and materials.

Fortunately, Liu Chan's previous caution was rewarded.

During the period of waiting to advance, the Han army's mechanical skills have improved more rapidly than in history.

Zhuge Liang had already seen the difficulties of the Han army's transportation out of Shu, he and his wife Huang Yueying thought hard for a few days, and specially invited Lu Yusheng to come together for details, and the three of them used the principle of lever balance and lever labor-saving to improve the popular two-wheeled vehicle at that time, and designed a wooden ox and flowing horse that was specially suitable for mountain roads.

The wooden ox is designed with the ox as a lever, the foot axis as the fulcrum, and some other structures of the head, feet and abdomen to be designed to load a large amount of grain, and can be driven slowly by a single person on the uphill slope, and there is a brake structure on the downhill to prevent overturning, which is very suitable for taking tortuous steps and plank roads.

The front foot of the flowing horse is a unicycle, and the back foot is pedaled on two wheels to ensure stability, and when turning, you can step on the rear bar and lift up, so that the flowing horse temporarily becomes a unicycle, especially suitable for walking back and forth around the mountain road.

These vehicles have been quickly sent to the front line, although it can't be done like that, it can move forward without manpower, but it is much more labor-saving than before, so that the people who transport military rations are thunderous, and praise the prime minister is really smart.

Lu Yusheng used Juanxiu's handwriting to elaborate on the basic principles of making wooden oxen and flowing horses, but the dense levers on a letter had already made Liu Chan dizzy, and his two self-proclaimed scribes were also stunned.

What's going on?

Is this little lady writing a book from heaven?

Why do we recognize every word, but when we put it together, we can't understand it at all?

"Prince, is this made by Mrs. Lu?" Yu Flip said in surprise.

"Well, it's basically the handiwork of the prime minister and the prime minister's wife, but Yu Sheng should have also participated in the design.

It's really ...... to be able to do this It's amazing. ”

The structure of the wooden ox and the horse is complex, and it is completely inferior to the animal cart and the ordinary trolley on the flat road.

But in the rugged environment of the plank road and mountain road, it is simply the savior of the people.

With this, the speed of military rations will be greatly accelerated, and Liu Chan is confident that it will fight better than in history.

Moreover, the most commendable thing is that Zhuge Liang has basically understood the principle through the study of mechanics this time.

He has already begun to write down the principles on paper and organize the sons of the nobles to tell them about this physical knowledge.

In the future, there will never be a situation where the assembly plan is clearly written, but the wooden ox and flowing horse are still lost.

Yu Fu was shocked, and Liao Li was also speechless by this thing.

He was reluctant to recognize Lu Yusheng as his master at that time, and he had always been deeply ashamed, but this time Lu Yusheng was able to join forces with a talent like Zhuge Liang to create such a magical thing, and he actually felt a little envious in his heart.

He knows that this little lady likes miscellaneous studies, and she forgets to sleep and eat every day to study a bunch of strange knowledge called mathematics, physics and chemistry.

Even Zhuge Liang likes those knowledge, is there really a way?

He secretly took out the "Barefoot Doctor's Handbook" compiled by himself, read the chapters and sentences on it carefully, and slowly felt that there was really a bit of mystery in it.

Not bad

It's really good.

Why didn't I find out that there was a mystery in this before?

Zhuge Liang can put down the scriptures and history and learn these things, why can't I Liao Li do it?

Seeing Liao Li staring at the "Barefoot Doctor's Manual", the military doctor Wang Xi frowned and pondered, thinking that Doctor Liao had gotten some inspiration from the book, and said solemnly:

"The divine doctor can't release the volume, he is really a model for my generation!"

"Get out."

“……”

There is such a magical thing as a wooden ox and a flowing horse, according to Yu Xuan's thinking, we should hurry up to publicize a wave of princes, and the prince has the help of the gods.

After all, it is obvious that the infinite myth upper leadership helps to maintain the rule.

But this time, Liu Chan decisively refused, and did not even give Yu Chan any chance to argue.

"This is not a magic technique, it is not a magic weapon given by God, it is a new tool created by wisdom,

As long as you are willing to learn and understand the way of heaven, everyone can make such a tool.

The Prime Minister, the Prime Minister's wife, and Mrs. Lu can design such an object, which should be recorded in history, and the skilled craftsmen who participated in the manufacture of this object should also be greatly rewarded.

Not only is it forbidden to rumor that this is a godsend in the army, but it is also necessary to actively publicize it, and order everyone to imitate and transform it, and if it can do better, it will definitely be rewarded. ”

"Not only that, when I return to Chengdu, I will set up a college to teach this.

It won't take ten years for the Han family to prosper! ”

Yu smashed it, smashed it, and didn't say anything for a long time,

Liu Chan thought that this old guy's stubborn temper was going to come up again, but he didn't expect Yu Tuo to bow respectfully to Liu Chan:

"The prince is so open-minded, why worry about the big man!"

Throughout the ages, craftsmen have promoted the continuous progress of society.

But in the Han Dynasty, the status of craftsmen was really not high.

Liu Chan originally didn't want to set up a special college in the world from time to time to teach these so-called "Heavenly Dao".

But the huge benefits of this knowledge made him a little unable to sit still.

Go back and have a good discussion with the prime minister, if this knowledge can be sprinkled to the people, within ten years, the Han will definitely show a different amazing appearance!

·

The problem of logistics was solved, and the march of the Han army was greatly accelerated.

In just five days, they appeared at Qishan Fort and launched a fierce attack on Gao Gang guarding Qishan Fort!

Gao Gang, the defender of Qishan, was taken aback when he saw a group of Han troops suddenly appear here.

He wanted to surrender, but these Qu Commanders under him were all Cao Wei's irons, and when they saw the arrival of the Han army, they were openly not afraid, and they asked Gao Gang to take advantage of the location of Qishan Fort to fight the Han army to the death!

"The art of war is cloudy: under the high eye, the momentum is like splitting bamboo.

If the Shu army arrives, we will tell him not to return! ”

Gao Gang: ......

"Ahem, all the righteousness and bravery, Gao Gang admires, just ask one more question, if the Shu army cuts off my way of drawing water, won't our army take advantage of itself?"

"If the Shu army cuts off my way of drawing water, won't the sergeants of our army fight to the death, and the Shu army will be able to advance an inch?"

Gao Gang: ......

Liu Chan originally heard that Gao Gang was a member of his father's fellow disciple Gao Lu, and he was also from Zhuo County, so he thought about trying to recruit him.

However, seeing him stubbornly on the mountain, he immediately dispelled this idea.

The mountain is steep and rugged, and the defense of Qishan Fort has been strengthened repeatedly, and Liu Chan really does not dare to attack at will.

Ma Chao took the initiative to ask for help, asking to lead his troops into battle, and without waiting for Liu Chan to agree, Ma Jian suddenly let out a burst of laughter nervously:

"Attacking the city and pulling out the fortress is a soldier of the general, how can the hussar general go in person?

I am willing to lead an army to cut off the Qishan Waterway, within ten days, the thief army will be chaotic, and then our army can attack calmly, and it will be able to win a complete victory! ”

Liu Chan's plan does not necessarily have to conquer Qishan Fort.

After all, the mountain roads here are too difficult and dangerous, and there is no need for much of a need.

As long as the other counties are conquered, even if they are trapped, they can trap the people of Qishan Fort to death.

"Okay, just follow the words of joining the army.

However, there is still a big thing to do when joining the army, and this place is ...... Xiu Ming, I'll leave it to you. ”

Meng Yan had been in a fugue, and was startled when he heard Liu Chan shouting his words, and hurriedly received his order.

"The prince asked me to attack Qishan?" He didn't react for a moment.

This was the first achievement of the Northern Expedition, and he never expected that it would be his turn, and he couldn't help but rejoice.

Liu Chan smiled and said:

"If it's just besieging Qishan Fort, it's not Lao Xiuming who goes into battle in person,

I still have one more important thing to ask Xiu Ming - all the craftsmen in my army will be handed over to you, I want to make a divine soldier, and use this Qishan Fort to test the power of this divine soldier! ”

·

It's the same as Cao Zhen predicted.

The cowardly Tianshui Taishou Ma Zun heard that the Han army was killing on a large scale and was petrified on the spot.

Especially when I heard that the Han army was actually led by the crown prince Liu Chan himself, and the general Ma Chao was the vanguard.

He was even more frightened, and regardless of everyone's dissuasion, he immediately retreated upward-

Shangqi is the upper reaches of Weishui, once the situation is not right, Ma Taishou decided to flee eastward.

Liu Chan was invincible, and even famous generals like Man Chong and Xu Huang were planted in his hands, and Ma Zun didn't think that he was better than Xu Huang.

Instead of being caught and dying in another country like Xu Huang, it is better to find a way to escape back to Chang'an.

Even if he is heavily punished for this, he should still be able to save his life with the face of his family.

Seeing that Taishou had fled, all the generals of Tianshui also fled, and the news spread to the neighboring counties of Guangwei, Nan'an, Anding, and Longxi, and everyone also ran and ran, surrendering to the ground, and did not think that they could confront the army of the Han army.

The prince has such a reputation, which naturally makes people quite happy.

But Liu Chan also knew that Zhuge Liang in history also made such a huge momentum during the first Northern Expedition, and the real test had not officially begun.

"Cheng Yuan, Zi Jun, and Youchang, I ordered you and others to lead the army into Jieting and control Longshan, as long as they guard for a month, it will be the first achievement of this battle!"

Meng Huo, who was mixed under Wang Ping, listened to Wang Ping's repeated explanations in the past few days, and probably understood that by capturing Longshan, he could completely block the enemy's support route, and at that time, Cao Wei's Yongliang could be said to be divided into two and let the Han army gallop.

He was puzzled and said:

"Then why don't you continue to the east and guard the Longshan Pass?"

Belch......

Liu Chan, who doesn't particularly understand strategy, can't explain this problem clearly, Zhuge Liang arranged it like this in history, and he could only arrange it according to the gourd painting scoop.

Fortunately, there is a military strategist who is more powerful than Zhuge Liang in this army-

Ma Jian picked up the map and put it in front of Meng Shu, and said with a smile:

"General Meng, please see, Longshan is related to Longdao, Fansu Road, Jitou Road, and Wating Road.

Guarding the street pavilion, it is difficult for the thief army to climb over even if they climb the mountain. ”

"Now the weather is cold, the mountain breeze is cold, there is a small city in the street pavilion, which can be used by our army for temporary residence, the Wei army is far away, and this mountain wind alone can make them not possess their souls,

The prince only chose to be here, that is, to imitate the method of fighting the hustle and bustle of the Guangwu in the past, and occupy this place to ensure the complete victory of our army! ”

Liu Chan: ......

You know that, so what are you thinking about in history?