After listening to some of the little sister's deletions, Sun Xiangfu covered his forehead depressedly, and said in his mouth, "Miscalculated, miscalculated, Li Ke's kid is too unkind······

Seeing his appearance, Sun Xiaomei was very embarrassed and said, "If the eldest brother insists on not wanting to have anything to do with the royal family, little sister, little sister will no longer give him a good look from now on." ”

Sun Xiaomei's words are very unconfident, Sun Xiangfu knows from her performance, but he is afraid that his little sister has already moved his mind, so he said, "It's not that you have to have anything to do with the royal family, it's just that you can't be too cheap that kid, you remember for me, less than eighteen, you are not allowed to have any physical contact with him, and during this period, don't give him any good looks, if he really has a heart, and can withstand the pressure of the Zongren Mansion and all aspects, just wait for you alone, then it is qualified to talk about marriage with you." ”

"Ah~······"

"This is the most basic condition for him to marry you, and if he can't even do this, he won't talk about it."

Sun Xiangfu's words set the tone for Sun Xiaomei's lifelong events, and now Li Ke, who is on the dock in Jinan County, riding on the grass house, doesn't know that next, there is a cruel test waiting for him for four years!

In the distant waters of South America, ten large ships of Baotou steel, carrying dozens of animals, seeds and fruits of hundreds of plants, as well as a fleet of more than 1,500 people and hundreds of Mayans, had already entered the smooth and windless channel where they went, and if according to Zhao Long's calculations, he planned to start his journey in April and May.

However, Zhao He is a farmer, it knows the importance of the season for crops, if you go back in July and August, many crops will not be planted this year, or even directly abandoned, so not long after the sisal was found, he suggested that Zhao Long immediately set off to return, so that if it goes well, they can return to Datang before March, plant a large part of the crops, anyway, along this windless route, at the speed of the Baotou steel ship, as long as it takes more than two months, you can get to Luzon, It was faster than Magellan, who sailed from South America to Luzon for the first time, and the voyage from Luzon to Canton Bay took only more than ten days, and the whole journey took no more than three months.

Sailing on the ship is very boring, but with hundreds of Mayans accompanying them, the crew has more to do, teaching them to learn Chinese, is what the crew must do every day, and in the process of teaching, some people with language talent have gradually begun to master their language, so that as the communication is more and more deep, they know more about the Mayan civilization.

"Uncle, their Mayan totem is very similar to our dragon, called Feathered Serpent, I think, stick some feathers to those big guys we caught, and you can make their living totems." Zhao He has gained a lot from the Mayans today, and he is showing off here in Zhao Long.

"Didn't someone say it was a leopard two days ago, why did it become a feathered snake again?"

"That kind of beautiful leopard, they are regarded as gods, we hunted two, just got a litter of cubs, if they hadn't reminded me, I didn't know that these little leopards like cat cubs would grow up to be as fierce as a lion tiger! It seems that we have to make a few strong cages and lock them up. ”

"Well, leopards are ferocious by nature, so you need to prepare in advance, and besides, with these things on the boat, the meat consumption is very high, so you have to call everyone to catch more big fish every day."

"Well, those few forest snakes can take care of two or three days after eating a meal! It's those tapirs, who like to eat green food, and have some trouble, every day, they get some bean sprouts, and the sweet potato leaves I planted on the boat for them to eat, and the amount of green vegetables we all eat has been reduced a lot. ”

Tapir this animal, in this period of Yunnan to the south of the area also has, Rinan County Bamu from time to time hunted to pay tribute to Chang'an, Bai Juyi also wrote "tapir Pingzan" to describe it specifically, however, the tapir produced in South America, and the Asian tapir species are a little different, especially when young, the pattern spots on the body are very beautiful, very cute, in later generations this animal is already an endangered animal, in most zoos in our country, it is difficult to see this animal, Sun Xiangfu is also in this era to see the Asian tapir dedicated by Rinan County, Only then did I think of this species, listed it in the search list, in general, the most like a pig, but there is a long nose, and rhinoceros like hooves, later generations of Guizhou in China unearthed a lot of tapir fossils, proving that it is a relatively ancient creature for people to hunt animals, its economic value, much higher than pigs.

As soon as he heard that Zhao He gave the sweet potato leaves on the boat to those animals to eat, Zhao Long said anxiously, "Don't waste good things for those beasts, then we will only bring a few hundred catties of sweet potatoes······

Zhao He smiled and interrupted him, "You don't understand this again!" This sweet potato leaf can be picked and eaten, and it does not affect its root growth, and not only these tapirs can be eaten, but we can also eat it, but the place on the boat that can be planted is too small, otherwise, it is not a problem to pinch some every day and fry a dish for the big guy. ”

Sweet potatoes, before the micro-variant, may not be so delicious, in later generations, you can still buy dried and astringent, not very sweet sweet potatoes, some sweet potatoes are suitable for boiling, and some sweet potatoes, suitable for roasting, such as powder and pumpkin sweet potatoes, this is because of the different varieties, so, after trying the taste of the sweet potatoes they collected locally, Zhao He was not very satisfied, because it was not as sweet as Sun Xiangfu described to him.

In fact, the method of sweetening sweet potatoes is very simple, after frosting cellaring, its flesh will naturally become sweet, Sun Xiangfu when he was a child, often eat this kind of sweet potatoes hidden in the cellar until winter, peel and eat raw, its sweetness is not lost to apples and pears, with such a sweet potato with high sugar content to seed, the sweet potato will naturally be sweeter, and the flesh will become softer.

Unfortunately, its origin is the subtropical region of South America, where the four seasons are warm, and people do not understand the reason why it is exposed to low temperatures, which increases the sugar content of its tubers and decreases the starch content, changing its seed properties.

Of course, even if the sugar content is changed, there are two reasons: 'low-temperature saccharification' and 'aging saccharification', choosing low-temperature saccharification to maintain the activity of the cells in the tuber, the sweet potatoes planted will be sweeter and the yield will be higher, which is why the spring department planted in the cooler weather period will usually have a higher yield and sweeter taste than the summer department.

Zhao He, who is determined to become the first Tang Dynasty man to successfully grow sweet potatoes, planted it on the boat as soon as he got this crop, with the local temperature of nearly 30 degrees at that time, the tubers as seeds did not have too much saccharification, and it was counted as a summer department, and the growth and maturity period only took about 110 days.

They didn't know that on the far other side, there were already people preparing for their return.

The day before the Shangyuan Festival, Li Shimin invited all the officials of Chang'an above seven grades to the banquet hall on the first floor of the Daming Palace to attend the banquet, which was the first time that the banquet hall of the Daming Palace was open to the outside world, and this hall with a total area of 60,000 square meters, in addition to some kitchen and bathroom facilities, it was nearly five football fields as big, much larger than the playground of Jiuyuan County School.

Therefore, thousands of people who attended the banquet, after entering this brightly lit palace, actually seemed very empty, and its maximum capacity was prepared for a one-time banquet for all the ministers of the country and all officials above the seventh rank.

Then, the banquet that day, from dusk to midnight, everyone was shocked by these things displayed by Jiuyuan County School, especially the cartoons.

The first episode is about stress.

In the second episode, it is about the natural phenomenon of rain and thunder, which lets everyone know that on the top of the main palace of Daming Palace, why there is a slender and long needle, and the newly built bell tower in Chang'an City has such a needle tip design, it turns out that this is a lightning rod, and at the same time, everyone also understands why the city tower of Taiji Palace and the Imperial City in the past often goes to water in thunderstorms, because it is the tallest building in Chang'an City.

The third episode talks about gravity, why objects fall downward, and the origin of weight, as well as some density calculation methods.

Of course, what shocked everyone the most was the speech of a classmate on the small stage of physics.

He first used a coarse woolen sweater to prove the principle of triboelectric electricity, explained to everyone some reasons why fires occur inexplicably in winter, and told everyone that these electricity, in fact, can be used, just need to find an insulator and wrap the metal with good conductivity, and even like Sun Xiangfu did when he gave them a lecture, he said that the overseas exploration fleet is looking for this most suitable species for insulators.

Even electricity can be used, and for people in this period, it is actually like a mythical story, however, the weapons academy can develop a weapon like the wrath of the gods, although few people present have seen it with their own eyes, but everyone knows that it exists, so no one will not believe what this student said now.

Li Shimin said that these new knowledge will not be disseminated to the outside world for the time being, that is, the ministers who only know the strange things now and do not know the reason for it, and try not to tell foreigners.

Then, it was announced that Sun Zhengming would restore the official position of the Duke of Nongguo and the prince and young master, and at the same time, Li Shimin also announced the list of princes who went to Jiuyuan County to study and plant rice after the Shangyuan Festival, including Li Shimin's son Li You, King of Qi, Li Yu, King of Shu, Li Yun, King of Jiang, and Li Zhen, King of Yue, the youngest Li Zhen, is just ten years old this year.

And because of Sun Xiangfu's crossing, Li Shimin's personal trajectory has also changed, the children born after the first year of Zhenguan, all of them have not come according to history, starting from Gaozong Li Zhi, and the five princes who were born later were not born at all, but in general, Li Shimin has five more sons than in history, that is to say, now, he is not yet ten years old, and there are ten, among them, there is the eldest grandson Empress who was pregnant when she was pregnant in Jiuyuan County, and the fourteenth prince Li Rui, who is now one year old.

As for Li Yuan, there are even more, in history, he should have died this summer, but now, he has a lot of fun in the fun park in Xingong every day, fortunately there are several talented show girls, and the number of sons has also risen to thirty-one, of which they are ten years old, and this time they will also go to Jiuyuan County to study Li Yuanqing, King Li Yuanyu of Deng, Li Yuanming, King of Shu, Li Lingkui, King of Jiang, Li Yuanxiao, King of Mi, Li Yuanxiao, plus Li Shimin's four sons, these ten people are the new Wang Ye rice planting class.

However, Li Shimin specifically said 'study' and rice planting in the holy decree, which means that Li Shimin recognizes these learnings and teachings in Jiuyuan County, and also supports the matter of the education reform under the rule of Shannan Province at the great court meeting at the beginning of the year after the Shangyuan Festival.

Then, the minds of the ministers of the DPRK and China moved, and Li Shimin's holy decree and the prince's class had just started! The letter of request came to Sun Xiangfu first, and the content was not there, those who were related to him, please ask Sun Xiangfu to send the children of their family to Jiuyuan County to study and learn these magical new knowledge.

Therefore, just a few days after the Shangyuan Festival, knowing that he would restore his official title and free Sun Xiangfu next, he has already begun to prepare to go far away, as for those little princes! After receiving the order, it is better to give them to those great princes to teach.