Li Longji can actually guess that these blank areas are borderless places without political power, but he needs Ang Lee's confirmation to further affirm his views. Pen "Fun" Pavilion www.biquge.info

"Your Majesty, the northernmost and southernmost sides of the map are a world of ice and snow, the weather is cold and biting all year round, it is difficult for anyone to survive here, it can be regarded as a barren land, and the rest of the places have large areas of land, some of which can be called anointed lands, but these places are almost uninhabited, only wild beasts and all kinds of plants and flowers, and only a few places have some barbarian savages, because there is no court rule, so Weichen is left blank."

Ang Lee looked at the map and explained.

Li Longji nodded lightly, and did not doubt what Li An said, after all, Li An has invented too many machines that shocked the world in these days, if Li An did not meet the guidance of the saint in the White Wolf Mountain, I am afraid that no one will believe it, and since the saint can invent machinery, of course, he should also know the size of the world, besides, Li An also said that this map was once drawn by a master in the world, so how could Li Longji not believe it.

"It turns out that most of the whole world is borderless land, only a small part is ruled by the imperial court, and the sea is so extensive, several times larger than all the land!"

Li Longji looked at the map in shock, what shocked him was not only the huge borderless land outside the Tang Dynasty, but also the wider ocean, the huge ocean area was something he never expected.

"Your Majesty, although the world is big, among all the imperial courts, only the Tang Dynasty has the most land, and it is also the most admired by the Siyi, and my Datang is the largest and strongest empire between heaven and earth."

Li An's face is full of confidence, and he is proud to be a Tang Dynasty child.

Li Longji abandoned the borderlands and the vast ocean, and looked at all the colored empires, and suddenly a smile appeared on the corner of his mouth.

"That's right, my Tang Dynasty is indeed the imperial court with the largest land, followed by the three big countries of Tubo, Dashi, and Turkic, and the west is a small barbarian country, which is not enough to worry about."

Seeing that the Tang Empire has the first land and is second only to the Tang Empire, and several powerful countries are also around the Tang Empire, and they are suppressed by the Tang Empire, Li Longji's mood has become much better.

"Your Majesty, Weichen has always had a good memory, I still remember that Ah Weng once said that in the borderless land in the distance, there are a lot of rare good things, there are sweet potatoes with a yield of 1,000 catties per mu, corn with a yield of 500 catties per mu, and a lot of things that can be eaten, many big trees are not available here in Datang, in the future, when the railway is repaired to Laizhou, we must build steam ships, go to these places to explore, and bring back a lot of good things that are needed."

Ang Lee looks forward to the future and makes demands.

"Sweet potatoes with a yield of 1,000 catties per mu, Li Shilang, are you sure you heard it right?"

Li Longji was shocked when he heard that there was a thousand catties of sweet potatoes per mu, this yield was several times higher than the highest yield crop existing in Datang, if the sweet potato was transported to Datang and planted in the land, Datang's grain output would increase exponentially, and the famine would never be related to the Tang Empire.

"Your Majesty, how could Weichen have misheard? It is indeed a thousand catties per mu, and there is almost no need for fertilization, and it can grow well on very barren land, and almost all of Datang can grow, but the more fertile the land, the higher the yield per mu. ”

Ang Lee explained with a smile.

"The yield per mu is 1,000 catties, if there is really this kind of crop, I Datang will never have the problem of famine again, I must send a fleet over to bring the seeds of sweet potatoes back to Datang."

Of course, Li Longji would not give up such a high-yield crop, and immediately made a decision.

"Your Majesty, the Americas are also 20,000 miles away from Datang, and the speed of ordinary sea ships is too slow, once there is a problem with the wind direction, it is very likely that they will not be able to come back, and the speed of the oars is generally slow, which is not conducive to avoiding thunderstorms and windy weather suddenly encountered on the sea, or steam ships are more reliable, and Wei Chen intends to design a larger and more suitable sailing steam ship for traveling on the ocean."

Li An advised Li Longji not to be too anxious, to eat the meal bite by bite, and not to be too impatient.

"Li Shilang, the crop with a yield of 1,000 catties per mu is extremely important to my Datang, you have to develop a steam ship as soon as possible, and bring this kind of thing back to Datang as soon as possible."

Li Longji looked quite urgent.

Li An nodded and said: "Your Majesty, rest assured, Weichen is already making preliminary preparations, all kinds of new steam engines, as well as propeller technology are under development, as for the construction of sea ships, we must first repair the railway to Laizhou, otherwise, many mechanical parts built in the capital cannot be transported to Laizhou in a short time, and shipbuilding will be difficult to carry out, especially many huge mechanical parts, only by using trains to transport, is the most reliable." ”

"Railroad? Isn't the railway from Luoyang to Laizhou already determined? Start laying it now, and repair it within a year, what does Li Shilang think? ”

Li Longji is still in an urgent mood.

"Your Majesty, the railway leading to Zhongshou City and Yumen Pass is still being laid, the Canal Bridge and the Bishui Bridge are also under construction, in addition to various machinery production, research and development needs, pig iron has been in short supply, manpower and financial resources in a short period of time, it is difficult to support the construction of this railway, besides, there are dozens of bridges along the way to build, or next year!"

Li An explained seriously and told Li Longji why the railway to Laizhou could not be built immediately, because all aspects were immature, and the large steam engines and propellers needed for large sea ships were only in the development stage, so there was no need to rush at all.

"Well, since that's the case, let's lay it after spring ploughing next year!"

Li Longji didn't force it, and followed Ang Lee's advice, but it could be seen that this old man was very excited, especially when he saw a large area of borderland.

"By the way, Li Shilang, is there only so big in the world? Is there a borderland beyond the ocean on either side of this? ”

Li Longji looked at the flat world map and asked curiously.

"Uh, this...... Wechen doesn't know very well, maybe there is! ”

Li An didn't dare to tell the truth at the moment, and in the future, when Datang's advanced steamship circled the earth, the answer would naturally be revealed, and now was not the time to propose this science.

"Okay, this map will be hung in the Zichen Hall in the future, you guys should retreat first!"

Li Longji asked Li An to step back, and stood alone in front of the map, pondering and imagining. Such a vast ocean, so many borderless lands, so that this emperor, who has reached the twilight of his life, is once again full of the idea of expanding the territory, of course, even if he does not have this map, he will have this thought, so great joy is the objective evaluation of him by later generations.

"Li Shilang, what you just said in front of Your Majesty is all the truth? Is there really a thousand catties of grain per mu? ”

After walking out of the Zichen Palace, Chen Xuanli looked at Li An and asked seriously.

"Of course it's true, do I dare to bully the king, in a few years you will see a thousand catties of grain per mu, wait!"

Li An smiled lightly and strode forward.

"What about the yield per mu? How can it be true, oh my! ”

Chen Xuanli's mouth opened wide and froze motionlessly.

After leaving Daming Palace, Li Ang did not return to the other hospital, but went to the R&D center, and now, there are at least dozens of products in the development and upgrading.

What Ang Lee has to do is to provide maps and technical guidance, grasp the general direction, prevent these R&D personnel from going astray, and let the craftsmen complete the specific work.

Among these dozens of R&D and improvement projects, half of them are machine tools, after all, only the development of steam machine tools, with more advanced and reliable precision machines, can produce more reliable products, especially many precision and advanced mechanical products, must be processed with good machine tools.

In addition, in order to build advanced steam ships in the future, more advanced and larger steam engines are being developed, and propellers to drive ships are also being developed.

The use of propellers at the stern of the ship can greatly improve the efficiency of propulsion, allowing the ship to reach higher speeds, even faster than trains.

The casting of breech guns is also continuing, and after some tests, the research and development of breech guns has entered the final sprint stage, and it is very likely that a gun will be cast at the end of the cast, which will become a qualified final product.

"Well, the breech gun failed several times."

Li An looked at the technical personnel in charge of developing the breech gun and asked with concern.

"Back to Li Shilang, we have failed three times, and we have also figured out the reason for our failure, and we will definitely succeed this time."

These best talents, after such a long period of study and research and development, have a certain ability to think independently, and can even judge how high the success rate of the product test is, which greatly exceeds Ang Lee's expectations.

"Good, very good, the breech gun is much more advanced than the previously cast guns, and it can fire more shells in a short time, so it must be developed as soon as possible."

Li An nodded, took out a drawing from his arms, and ordered: "According to this drawing, build the artillery mount, this gun mount is very important, and it must be developed as soon as possible." ”

The craftsman took the drawing, frowned, and said, "Li Shilang, this gun carriage looks too thin, and the artillery retreat distance will be relatively large, is it really feasible?" ”

"There will be no step back, as long as this gun mount is developed and the barrel of the gun is mounted on it, when the gun is fired, it will not take a step back."

Li An Zhengse said.

This very advanced artillery reset system, which is standard for later artillery, can also be called an anti-recoil device, which will greatly enhance the power of the gun and allow the gun to be used in more places, such as trains and sea vessels, and even the interior of vehicles.

"Yes, Li Shilang, this thing doesn't seem to be very difficult to make, and it will be made soon."

The difficulty of manufacturing the anti-recoil device of the gun is much easier than casting the barrel, and after casting the main body, it is only necessary to add a thick spring to complete it, which is of course not much difficult for the craftsman who developed the barrel.

Li An is very much looking forward to the development of advanced breech guns and anti-recoil device gun mounts, so that the combat power of artillery will increase by a great grade.

After continuing to inspect several R&D projects, Ang Lee left the R&D center and returned to the courtyard, and the three of Yan Ruyu copied the world map, this kind of world-level map, of course, to make a few more copies, in the future, when the steam ship goes out to explore, you need to bring this map, in addition, Ang Lee also named many important islands in the ocean, such as Guandao, Wei Island, Middle Island, Xia Island, in addition, the shape and topography of these important islands are all drawn on an additional map, so as to let the steam ships go to sea, When encountering these islands, understand where you are and orient yourself with the world map to prevent you from getting lost.

A few days later, the R&D center came with great news, the breech gun was officially developed, and three test firings were carried out, the shooting was stable and accurate, and the earthen wall 500 steps away was successfully smashed.

Immediately afterwards, a gun carriage with a spring anti-recoil device was also built, and Li An was immediately notified and asked Li An to come for guidance.

"Li Shilang, the breech gun has been successfully tested, and the gun carriage you said has also been built, do you want to try it out?"

Li An nodded and said, "Install the barrel, gun carriage and running wheel, and pull it out to try the effect." ”

Dozens of craftsmen worked together to assemble the barrel, gun carriage and gun wheel together to form a perfectly looking gun.

The R&D center has a special site for testing artillery, and several earthen walls are specially built up to two feet high.

Looking at this advanced artillery similar to the appearance of World War II in later generations, Li An was very proud, although it was only similar in appearance, and the power of the shells was much worse, but this was good, in this era, such artillery was enough to cause huge losses to potential enemies.

"Aim now, ready to fire."

Ang Lee gave the order for the experiment.

In addition to the spring anti-recoil device, the gun carriage of this new gun is also equipped with a handwheel mechanism to adjust the angle of the gun, and the gun can be easily adjusted to the desired angle by rotating the handwheel.

Several craftsmen rotated the handwheel, aimed the muzzle of the cannon at the earthen wall 500 paces away, and loaded the shell and propellant into the barrel one after another, closed the breech and locked it.

"Open fire."

Ang Lee immediately ordered.

"Boom ......"

The craftsman pulls the tow rope so hard that the firing pin at the rear of the breech gun quickly hits the propellant and ignites the propellant, pushing the projectile to the target in front.

"Hit, hit."

"Hey, the artillery really didn't retreat."

Not only did they see that the artillery hit the target accurately, but they also saw that the artillery only moved a little, and did not move very far backwards in a very exaggerated way.

"Clear the chamber, load and continue firing."

Ang Lee continued to give the order to fire the shells.

Several craftsmen immediately opened the breech and, after a little cleaning, loaded the shell and propellant again, closed the chamber and fired the next shell into the target area.