When everyone was still immersed in the excitement of the Dragon Boat Festival, a team quietly left the capital and went south by boat. They went to Dali on the orders of the emperor, and of course they were no longer a mission to spread friendship, but a secret arrow to subvert his regime. In order to strengthen the strength of the Intelligence Division, a ten-man team was dispatched to assist in the operation.

At the same time, Gao Zhong, who commanded the armies in the south of the Yangtze River, also received a secret order from the emperor, ordering him to go to Luzhou to form a northern Yunnan command and unify the command of the Jiangling Zhenfu Si Forbidden Army, Chengdu Fu Road, Tongchuan Fu Road, Zizhou Road, and Guangnan Road. Hoard grain and grass materials, collect relevant military intelligence, strengthen jungle and mountain combat training, and once Dali has something to do, he can be ordered to go to war and quickly put down the rebellion.

In order to obtain strategic resources and open up access to South Asia, Zhao Ta made up his mind to overthrow the current regime of Dali and establish a pro-Song government, turning it into a pawn in his hands. At this time, the bow was wound and the sword was unsheathed, since they refused to fulfill their wishes, it could only let them launch a revolution, as for whether to change horses or destroy the country, it would depend on the development of the situation and then make corresponding adjustments.

Just when the revolutionary storm of Dali was brewing under the instruction of Zhao Tan, he quietly set off a revolution, and this revolution was not to expand the territory and destroy the country, but if this revolution succeeded, it would not only change the Great Song Dynasty, but probably the entire world...

Food shortages have plagued the world from ancient times to modern times, and people do not hesitate to kill each other and provoke wars in order to obtain enough food to satisfy their stomachs. At this time, the Great Song Dynasty introduced and popularized Champa rice, relying on advanced farming techniques and techniques, which basically met the demand. However, food production was still not high at this time, and food shortages occurred in the event of disasters and wars. And as the population increases, this contradiction will increase, and when it is not satisfied, unrest will follow.

Today, 70 percent of the population of the Great Song Dynasty is concentrated in the south of the Yangtze River. As a result, land tension in Jiangnan has become increasingly tight, and the policy of land annexation regardless of land has concentrated land in the hands of a small number of people, and the contradictions have become more acute. Due to the sharp decline in the population of the war and the limited climate, the northern region was not suitable for large-scale rice cultivation, and even if new farming techniques were popularized, the yield of fertile land was only two stones, so that a family had to own at least 30 acres of land to meet the needs of life and pay various taxes and fees. This leads to greater contradictions.

At present, wars are still frequent, a large number of troops are concentrated in the north of the Yangtze River, such a large territory every year does not know where to go there are some natural and man-made disasters, there are a few more large cities in the north, recruiting displaced people to the north to cultivate is not a year or two can be effective, grain has to rely on the south of the Yangtze River through the transport of ships, causing huge pressure on the country, but also wasting a lot of manpower and material resources.

In order to solve the food problem, we must ensure that there is grain relief in disaster years. It can also support the continuous war, only by occupying more land or increasing the production of food. Now the Central Plains area suitable for agriculture basically fell into the hands of the Great Song Dynasty, and the land in the northwest is barren, and there are only a few pieces of good land. Even if you grab anything, you have to rely on the mainland to supply grain and grass, so you can only find a way to increase the yield.

Zhao Ta was a farmer in his previous life. The promotion of several crops in Zhilu Dao has changed the food structure and saved mankind from famine. But these crops did not enter China until hundreds of years later through the great discoveries of Western geography. But Columbus, his ancestors, still don't know where the road turns? It is better to seek others than to seek oneself, and Zhao Ta is determined to be the forerunner of the great voyage of this world. As soon as he came to power, he began to form the 'Academy of Sciences', for which he made careful preparations.

In recent years, Zhao Ta began to explore new routes and accumulate experience in long-distance voyages with the navy as the pioneer, but due to the limitations of technology, although the fleet went farther than the previous generation, it had not yet reached the Africa that Zheng He had reached when he went to the Western Ocean in the Ming Dynasty, and only circled in the Middle East. This year he plans to embark on another voyage to the East to explore routes to Central America, where he needs corn, sweet potatoes, potatoes, cotton, and other world-changing crops, as well as peppers, tomatoes, peanuts, and other delicacies...

"Your Majesty, the sextant, log, clock, etc. developed by rejecting your proposal have all been successfully manufactured, and they have all met the requirements after trial!" Zhao Ta came to the 'Great Song Academy of Sciences' located in Genyue-Jixian Academy, and Han Gonglian of the Tongzhi Academy hurriedly came over to give a salute.

"Han University Scholar is exempt, you have worked hard, it's the right time, how should this academy reward you!" Zhao Ta hurriedly hugged and said with a smile.

Jixian Academy was originally one of the three museums of the Great Song Dynasty, and after Zhao Ta ascended the throne, the streamlined institutions were merged, but the secret institution that could be established could not be without a name, and it was a bit avant-garde to call the Academy of Sciences, so he appropriated the name because he thought the name was good. And here is indeed a gathering of hundreds of capable people in the Great Song Dynasty, including those who are proficient in arithmetic, astronomy, medicine, geography, architecture, etc., in addition to top skilled craftsmen.

The old man Han in front of him is not simple, proficient in arithmetic and astronomy, he was recommended by Su Song to preside over the creation of the 'Water Transport Armillary Sphere', and compiled the "Nine Chapters of the Pythagorean Test Armillary Book" that has been handed down to future generations, but these people have strange tempers and do not want to be officials, Zhao Ta is also the prefect of the Academy, so he calls himself this academy in front of them, and Han Gonglian is old and prestigious, and he reluctantly becomes a fellow acquaintance and presides over the work.

"These are all the ideas of His Majesty, personally drawing and calculating, how dare the old man be greedy for the merit of heaven for himself!" Han Gonglian waved his hand and said with a very respectful attitude, but this was not only because Zhao Tan was the emperor, but because he was impressed by his profound arithmetic skills and extensive knowledge and whimsy, but he didn't know that the binary equation they were still studying had been popularized in the emperor's previous life.

"Your Majesty only needs to lend your copy of the Naturalist Chronicles to read it next, and you don't need any reward!" At this moment, a young man beside him interjected.

"Hehe, how can the treasure be easily revealed, when your knowledge is growing, I will lend it to you to read!" Zhao Ta said with a smile, this Zheng Qiao is even better, he has read more than 10,000 volumes, and has written more than 10,000 books, including scriptures, rituals, texts, astronomy, geography, insects and fish, and square books. After the change of Jingkang, he wrote a book to resist Jin to attract the attention of Zhao Ta, and after being recruited into Beijing, he talked in detail, thinking that he was very knowledgeable, but he did not want to be an official, and he reluctantly entered the Jixian Academy just to be able to read the collection of books in the palace.

With Zhao Ta's knowledge in his previous life, he could coax the ancients to turn around, and the monarch and ministers attracted Zheng Qiao after talking freely a few times, but this person is more serious, and he has to ask the source for what the emperor said. Zhao Tamar's leather was blown up, and he couldn't fool people with 'Yuxian' anymore, so he said that he saw it from an ancient book "Naturalist", so Zheng Qiao always pestered the emperor to see it.

"Your Majesty, I heard that you are going to organize a voyage to the Far East to find a few kinds of plants and trees, so that the people of the world can avoid the suffering of famine, and I want to go to sea with the fleet to share your Majesty's worries!" Zheng Qiao said.

"Do you know that the sea is vast, the wind is high and the waves are fast, it is likely that there is no return, it is too dangerous, so don't go!" Zhao Ta looked at Zheng Qiao's weak body and smiled.

"Master Zheng, Your Majesty's words are reasonable, looking for an unknown place in the ocean, it may be a few years, and you don't want to be a scholar!" Han Gonglian also persuaded.

"I am proficient in astronomy, I know geography, I can argue that plants and trees are useless people, and I also want to see what the Far East is like, there is really the miraculous thing that His Majesty said!" Zheng Qiao said unconvinced.

"Well, what you said also makes sense, wait until I think about it, let's see how the giant boat wood sample is made!" Zhao Tan said as he walked, thinking in his heart that if such a learned person was with him, he would not be able to cultivate a Great Song 'Darwin' hundreds of years earlier...

"Your Majesty, this is a warship, according to Your Majesty's orders, we have reduced the width of the hull, strengthened the keel, designed a double-hull, increased the compartment, the length of the ship is fifteen zhang, and it can carry ten thousand Hu!" When he arrived at the backyard workshop, Han Gonglian pointed to a ship and introduced that for this voyage, Zhao Ta summoned a group of shipbuilders to participate in the design of a sea ship suitable for long-distance voyages, and now made a wooden sample for the emperor to inspect.

"Well, it's good, it's just that this ship has to be loaded with guns, and there will be a lot of recoil when firing, can the deck withstand it!" Zhao Ta looked at it carefully and asked, this battleship he absorbed the advantages of the Western sail wooden warships of later generations, making the ship faster and more survivable on the battlefield.

"Your Majesty, the decks have been strengthened, and ten guns can be placed on each side of the ship, and twenty-two guns can be placed with the bow and stern guns!" Han Gonglian said.

"When you go to sea, you may not see land for months, and the crew is very easy to get tired, so the rest place must be designed as spacious and comfortable as possible!" Zhao Ta nodded and said, the warship is now a thousand-ton warship, and with this kind of firepower, it is enough to be invincible in this era.

"Your Majesty, we thought of it, please look at this ship!" Han Gonglian pointed to a wooden sample with a hull wider than a warship and said, "This ship is divided into three layers, the bottom bilge can carry grain and fresh water, the first floor can raise chickens and dolphins, and can also grow melons and vegetables, which can be eaten by sailors on the way, and this ship can also be used as a merchant ship!" ”

"Yes, there are also fresh vegetables and meat along the way, which is very good for increasing physical strength!" Zhao Ta nodded and praised, this is the ancient supply ship in ancient times, there was no refrigerator and it was impossible to store fresh food, which could solve a big problem, and there would be no sepsis due to lack of vitamins.

Then Han Gonglian introduced other ships they designed, including fast boats for reconnaissance, flat-bottomed boats used in shallow waters, and giant boats that can be used as command ships, all kinds of functions are complete, and Zhao Tan wants to board the ship to explore the new continent in the wind and waves.

"Yes, you can make the shipyard build a sea trial, and if it is successful, you can go to sea!" Zhao Ta slapped the board and ordered it to be manufactured, "I will select sailors to learn the use and maintenance of those new instruments, and then the charts will be sent!" "He breathed a sigh of relief, if all goes well, he will be able to sail next year... (To be continued......)