The so-called pro-initiation secret music did not set off any turmoil in the investigation, and His Majesty Li Er obviously guessed who was most likely to make a ghost.

Once the investigation is carried out with great fanfare, not only will Li Tai, the king of Wei, be affected, but the painstaking maintenance of His Majesty Li Er will also come to naught.

It is not known whether someone was sent to secretly investigate.

Xu Qilin doesn't care about this, taking care of his mouth is the best policy. Why was Du Zhenglun demoted, how can he not learn from the lessons of the past?

Feasting and drinking, arranging affairs, it was not until the third day that Xu Qilin took people on the road and rushed to Xin'an. And on this trip, Scarlett and Adjani have to accompany them, and even Xiaoye is clamoring to go.

Xu Qilin didn't object, it's just three more girls, it's not a big deal.

The group took the Caoyun waterway, and Xu Qilin also took the opportunity to inspect it to see if there was anything to increase efficiency.

Now, Caolu is very prosperous, but it is no longer food-oriented. Hexi's grain support for the Western Regions, the diversion of Guanzhong's population, and the progress of agricultural technology have greatly reduced Guanzhong's demand for grain.

With the establishment of Qianzhuang in Luoyang and Yangzhou, as well as the organization of shipping and land transportation in Dayingku, commercial and trade activities have been greatly promoted.

The activity of commerce and trade has brought about the flow of capital, the increase of national taxes, and the prosperity along the way.

You don't need to go to Luoyang, just looking at the boats coming and going on the river, Xu Qilin knows what great changes will occur in Luoyang relying on the advantages of geographical center under the promotion of commerce and trade.

Xu Qilin did not go to Luoyang, but came directly to the destination Xin'an and began the technological innovation of glass and steel.

In the case of a secret frame-up, in order to avoid suspicion, Xu Qilin naturally couldn't leave his work and went to Luoyang to contact Li Sipang.

Cool down for a while, and then go to the coast to investigate shipbuilding, and pass through Luoyang by the way, so that others have nothing to say.

After several years of production and manufacturing, as well as Xu Qilin's remote control guidance, the technical level of the Xin'an base has been steadily improved, and the proficiency of craftsmen has also reached a considerable level.

For example, the production rate of flat glass for making mirrors has been quite high, which has greatly increased the production of mirrors.

Xu Qilin was not satisfied with this, he came to Xin'an this time to create a larger flat glass and create an eye-popping fitting mirror.

At the same time, in addition to the production of ordinary glass, Xu Qilin is also preparing to manufacture optical glass, so as to lay the foundation for the popularization of telescopes and the manufacture of optical instruments.

As for steel, Xu Qilin also has ideas. Although the transportation is fast, it is seasonal and requires hydrological conditions. In the case of land transportation, trains cannot be built, but plates and rails are very possible.

Arriving in Xin'an, Xu Qilin threw himself into his busy work. The foundation has been laid, the resistance to further progress has been greatly reduced, and the time to success has been greatly shortened.

Not long after, Fang Er also came to Xin'an. But within a few days, he took the drawings drawn by Xu Qilin and the wooden model, and set off for Yangzhou Shipyard with the officials of Dayingku.

Before the Song Dynasty, China's ships were strong, but they were not alone. At that time, the Arabs, who were proficient in seafaring, also had very strong shipbuilding skills, and Arab ships were once a sight to be a coastal port in China. At that time, it was called "Western Regions Ship" or "Fanbo".

Although the Tang Dynasty ships are the same across the sea, the problem is also objective, because the voyage is getting longer and longer, the ship is getting bigger and bigger, so that the Tang Dynasty ships sail to the Persian Gulf region, often because of the large hull draft, even other people's ports can not enter, can only change to a small boat!

By the time of the Song Dynasty, Chinese ships had become the dominant characters on the oceans. Because the shipbuilding technology of the Song Dynasty, in the world at that time, was no longer a simple technology leader, but the overall concept was ahead.

First of all, the concept of shipbuilding, before the Song Dynasty, shipbuilding, were hollowed out to think about how to strengthen the hull, but the Song Dynasty people broke through this horn tip: building big is not necessarily strong, the key is hard bones, human shipbuilding is an important step "keel", in the Song Dynasty perfect realization.

Since then, no matter how big and small the Chinese build a big ship or a small boat, they will first lay a good keel structure, the bones are hard, and the big ships and small boats are very resistant to wind and waves!

What is even more beyond the reach of foreigners is that the shipbuilding of the Song Dynasty not only can fix the keel, but also draw drawings, and every time a big ship is built, there must be a reliable ship drawing plan, and even a professional dock.

As for the transverse compartment and the watertight compartment, these designs are also more mature.

Of course, if you want to talk about the status of the sea giant, the most representative of ancient Chinese shipbuilding has to explain the Zheng He fleet of the dynasty!

As Zheng He's fleet that went to the West seven times, it represents the highest technology in ancient times only in terms of shipbuilding level. Among Zheng He's fleet, the most famous is none other than Fu Chuan.

In ancient China, there were four famous ships, namely the sand boat, the Guangzhou boat, the fortune boat, and the bird boat.

The sand boat has a flat bottom, square head and square bow, which is suitable for navigation on the channel with shallow water and many beaches, and is mainly used in the northern sea area, and its most prominent characteristics are wide, large, flat and shallow.

The bird boat is a sea ship in the coastal area of Zhejiang, which is characterized by the shape of the bow like a bird's beak, so it is called the bird boat because there is a green eyebrow above the bow eye of the bird boat, so it is also named green eyebrow.

The basic characteristics of the Guangzhou ship are that the head is pointed and the body is long, the top is wide and the bottom is narrow, the linear shape is thin and the bottom is thin, the structure is solid, and it has good seaworthiness and endurance.

The Fu ship is the most famous, its ship is flat as balanced, the lower side is like a knife, the bottom tip is wide, the head tip and the tail are wide and the two ends are warped, which improves the anti-sinking performance of the ship and increases the safety performance of the voyage.

After comprehensive consideration, Xu Qilin decided to make a fortune boat and a sand boat. One is an ocean-going voyage or a giant ship of naval warfare; The second is that the sand ship is used in the northern sea area, with good seaworthiness, shallow draft and large carrying capacity, and can be a transport ship.

The sand boat appeared in the Tang Dynasty, although there were still defects in the ship type and manufacturing technology, but it was not difficult to improve.

As a new ship type, the Fuchuan is time-consuming and labor-intensive, and Xu Qilin does not know how much time it will take to build it successfully.

Although the Fuchuan was the first to be built in Fujian, the most powerful and important shipyard in the Tang Dynasty was in Yangzhou. There are five or six large shipyards alone.

And Xu Qilin has already asked for a holy decree, which will be carried by the officials of Dayingku, and after arriving in Yangzhou, he will contact the Yangzhou Dao shipbuilding ambassador to start the construction of sand ships and fortune ships.

Of course, money is not spent. In addition to the income of Yangzhou Bosi, Dayingku will also invest heavily to complete Xu Qilin's shipbuilding business as soon as possible.

At night, when he returned to the temporary house where he stayed, Xu Qilin ate late, and was busy making sand tables for His Majesty Li Er in eastern and western Liaoning.

After getting the map and the survey data of the eldest grandson, Xu Qilin found that the terrain at that time was very different from that of later generations, and it was far from something he could easily complete by relying on the knowledge of later generations.

You must know that the footprints of the ancients who traveled long distances before Liaojin did not pass through the Liaoxi Corridor.

After Qin destroyed the Six Kingdoms, Qin Shi Huang ordered a major repair of the Chi Road, which only opened up Wuzhong (Tianjin Jixian) to Jieshi (Huludao Suizhong), and the Yuguan (Shanhaiguan) to Jieshi in the middle is the westernmost section of the Liaoxi Corridor.

In other words, the Liaoxi Corridor was not connected during the Qin period. From the Qin and Han dynasties to the Sui and Tang dynasties, the main route from the Central Plains to the northeast was to go out of Yuguan and then go down the Daling River Valley through Jianchang (now under the jurisdiction of Huludao) and Chaoyang to the east, across Yiwulu Mountain to Liaoyang, an important town in eastern Liaodong.

Moreover, when it first appeared in Liaodong and Liaoxi, it was not the Liao River that divided the east and west, but a Daze that once appeared in the Liaohe Plain, called "Liaoze", or it can also be called "Luze", which is extremely vast.

According to the information at hand, Xu Qilin found that it was different from the Liaoning West Corridor he imagined.

The most important and spacious coastal road between Northeast China and North China in later generations is currently very unstable, and most of them are not easy to walk, at least not enough to support the passage of large-scale vehicles and horses.

This can also explain the reasons for the repeated failures of the Sui and Tang conquests of Goguryeo. The transportation roads were not smooth, and it was difficult to support the supply of grain and grass for large-scale army operations.

At that time, the forming road into the northeast should be the Lulong-Pinggang-Liucheng Road, which had been formed in the Shang and Zhou dynasties and played the greatest role in the economy and military.

This road out of Xifengkou, along the Luan River north to Pingquan, to the right Beiping County Pinggang, east to the White Wolf City (Kazuo Huangdao Yingzi), and then along the Daling River to Liucheng (Chaoyang), from Liucheng over Lushan into Liaodong.

After taking this passage to reach Pinggang, go north along the Laoha River, you can go straight to the court of the Xiongnu Zuoxian, so from the Western Han Dynasty, it attaches great importance to the maintenance of this road.

The hussar general Huo Quai's trip north to capture the Zuoxian royal court was the final result of the Western Han Dynasty's long-term emphasis on this Lulong-Pinggang road.

As long as the national strength allows, even if there are no genius generals, the Han army can maintain high pressure on the eastern side of the Xiongnu regime for a long time.

Of course, during the decline of the Central Dynasty, such as the end of the Eastern Han Dynasty, the ethnic minorities in the Northeast could also exert great pressure on the Central Plains through this passage, such as the Wuhuan people.

Cao Cao's decisive battle with the Wuhuan people after unifying the north also seems to demonstrate the value of this passage.

However, the Tang Dynasty did not take this path, and Xu Qilin did not consider it, but focused on solving the difficulties and problems of entering Liaodong from the current Liaoxi Corridor.

In fact, anyone can see from the map that the true form of the Liaoning West Corridor should be the coastal road.

Because this road is the shortest distance and is navigable in a long and narrow plain, it is the most convenient passage for both the passage of large troops and the trade of large quantities of goods.

But the formation of this road is difficult, because the road is coastal and low-lying, and once the ocean rises, it becomes a swamped country.

Until the Liaojin and Jin dynasties when the ethnic minorities in the Northeast completely dominated the Central Plains, repairing the fast passage connecting their hometowns and the ruled areas naturally became the most concerned project of the rulers.

The Binhai Avenue in the Liaoning West Corridor has finally received enough funding and manpower to build it. In other words, it is "after the management of the golden generation, the opening of the Ponkaido was finally completed, and the western Liaoning corridor showed its prototype." ”

The thought of building a dam to hold back the tide of the sea and how long it was, even Xu Qilin felt a headache. The investment of financial, material and human resources is definitely an astronomical amount, and it cannot be completed in a few years.

Obviously, before the conquest of Goguryeo, it was no longer possible to completely operate Binhai Avenue, so Xu Qilin could only find a way to transport materials quickly and conveniently.

And this idea is not new, in the conquest plan he envisioned, there is already a decision on sea transportation.

Since he wanted to ship supplies by sea, Xu Qilin naturally set his sights on Jingu in the "Sanhui River Estuary" and Denglai in Shandong.

Carrying supplies from these two places, going north along the coast, and setting up a storage and transportation warehouse on Juehua Island, the instability of the coastal road was avoided, and the Tang army's expedition to Goguryeo had material security.

Then it is still by sea, arriving at Yingkou (called Yingkou in the Three Kingdoms, called Lilinkou in the Eastern Jin Dynasty), taking the Great Liao River, you can enter the hinterland of Liaodong.

Although the navy of the Tang Dynasty was already very powerful, it was not valued by the imperial court, and its use was not satisfactory.

If there were a sufficient number of ships, Xu Qilin was even thinking that instead of going through the western Liaoning corridor, the sea army would go straight to Beisha City (now Daheishen, Dalian), and then attack eastern Liaodong.

But if His Majesty Li Er personally recruited, such a battle plan would obviously not be approved. In fact, His Majesty Li Er's personal conquest was precisely the key factor that failed to destroy Goguryeo in one fell swoop.

Because the Tang army did not have a lot of troops, it was natural to fight steadily and steadily, and with the emperor's safety as the greatest consideration, it was impossible to implement an adventurous plan.

And the seaborne heavy landing operation, in the Tang Dynasty, was indeed a very risky and strange plan.

Xu Qilin was making a sand table while thinking about the plan, and suddenly felt that destroying Goguryeo might not be the best choice.

Goguryeo, Baekje, Silla, and perhaps the Wa kingdom formed a delicate balance. Whichever one is destroyed, it is unlikely that the Tang Dynasty will benefit.

The same is true in history, the Tang army spent a lot of effort to destroy Goguryeo and Baekje, and Baekgangkou defeated the Wa Kingdom, but in the end, it was Silla who had been pretending to be his grandson.

Wouldn't it be better if it just hit Goguryeo hard and drove it across the Yalu River and let them have a three-kingdom melee?

Xu Qilin touched his chin and turned to think about the practicality of this strategy. It's just that the biggest obstacle to the realization of this strategy is His Majesty Li Er.

In order to establish a merit that surpassed that of Emperor Qin and Han Wu, and in order to prove that he could accomplish the great cause that Emperor Yang of Sui could not accomplish, it was obviously very difficult for His Majesty Li Er not to destroy Goguryeo.

Do you want to deliberately stumble yourself, or don't do your best to make His Majesty Li Er return in vain? This thought flashed through Xu Qilin's mind, but he quickly vetoed it.

That's a lot to do! Xu Qi couldn't help but raise his head when he heard the sound of footsteps.

It turned out to be Xiaoye, but she wasn't alone, and Daya also slowly appeared.

"Xu Lang, did you say that 'ruthlessness is the most emperor's family'?" Xiao Ye seemed to have been reprimanded, and his face was full of displeasure, so he asked.

Xu Qilin was stunned for a moment and said, "This is not something that is said casually, I want others to hear it-"

"Where is the others?" Xiao Ye pouted and said, "You treat me as a big mouth, you should talk nonsense that you shouldn't say." ”

Daya said: "Although this is reasonable, it is not absolute. Otherwise, why do many people dream of being born in the royal family? It's the same as having no worries about food and clothing, and it's also important not to be bullied. ”

...................