After the prosperous Tang Dynasty

The weather in early June, although it is summer, is not too hot.

In a neat row of convoys, Xiao Yansui casually lifted the curtain of the carriage, and out of the corner of her eyes, she caught a glimpse of the green willows on the side of the road, but she just reached out and grabbed a thin book next to her and fanned herself, looking at the small case with an indescribable expression. There is also a half-rolled map.

Both Xiao Song and Xiao Yansui are very active people, even though one of them is already an elderly man with gray temples, and the other is an underage cardamom girl.

At this time, Xiao Song, who had returned home from his official position, had already packed his bags. Under the disbelieving eyes of everyone in Xu Guogong's mansion, he and his only granddaughter Xiao Yansui left the prosperous city of Chang'an with many guards and servants. .

As for Xiao Yansui, although she didn't touch the scattered fitness equipment that was later placed in her yard, the related books on natural science collected in the study over the years and the notes she sorted out after reading, natural history All kinds of experimental products piled up on the shelf, as well as various experimental equipment that were either specially fired or replaced by random things, were all packed one by one by her and brought with her.

Of course, besides that, Xiao Yansui also brought the three little dogs he had been raising all along!

On the other hand, when Mrs. Pei helped her daughter pack her luggage, Xiao Yansui didn't pay much attention to the huge pile of clothes and jewelry that came out. Anyway, these things were naturally sorted out by a careful maid one by one and packed into boxes.

At the beginning, when she suddenly learned that her precious daughter was going back to Lanling's hometown with Xiao Song, Pei's mood collapsed.

The girl's 15-year-old Jiji ceremony can be regarded as the most important ceremony in her unmarried life, but there is still a year to go, and the Pei family is already thinking about it, thinking about inviting those guests and holding a ceremony for her daughter. A grand wedding ceremony...

In the end, when the time came, Xiao Yansui suddenly said that she would accompany her grandfather Xiao Song back to her hometown! ?

Now I went back with Xiao Song, the journey was full of dust, she was a little girl herself, would she come back by then?If you don't come back, can you still do the Jiji ceremony?

Just don't mention this, the good daughter has been raised by her side all the time, but the child is only thirteen or fourteen years old, it's still too early for her relatives to get married, so suddenly she is no longer by her side! ?

However, although Mrs. Pei was unwilling in her heart, Xiao Yansui herself was determined. Even with the acquiescence of Xiao Song, the patriarch of the feudal family, Mrs. Pei still couldn't screw her daughter.

The two oldest sons are still by my side, but as a result, the youngest daughter decides to go out on her own, what's the matter!

·

It was also after leaving Chang'an City, when Xiao Yansui was chatting with his grandfather Xiao Song on the road, Xiao Song actually took out a simple map of the territory of the Tang Dynasty from the box under his case.

Although Xiao Yansui was no stranger to things like maps, they were absolutely precious and secretive to most people in this dynasty.Even if the location of the garrisoned Jiedushi and the army is not marked on it, just such a map of the territory is enough to be used for intelligence.

Xiao Song beckoned to his granddaughter, pointed out the location of Chang'an in the picture, and then lightly drew a line with his fingers, and said with a cheerful smile, "We set off from Chang'an City and head east all the way, here is our Lanling County, where the Xiao family's old house is located."

"Yeah!" Xiao Yansui nodded subconsciously in response, glanced at the direction where Xiao Song's fingers passed, and took a rough look at the places he probably passed along the way. As a result, looking at it, Xiao Yansui suddenly The whole person was stunned.

——In the territory map of the Tang Dynasty at this time, the north is Turkic, and the west is Tubo. There is a piece between Turkic and Tubo. It was Liangzhou, where the Hexi Jiedu Envoy was stationed, and then left Yumen Pass to the west, and it was the Longyou Road that almost bordered the entire territory of Turks and Tubo.

Although there are many gaps between the current Tang Dynasty territory and later generations of China, Xiao Yansui's general provinces and cities can still be mapped one by one.The only problem is that the location of Lanling's hometown that Xiao Song showed her all the way from Chang'an City was not in Lanling County in Linyi, Shandong, but directly in Jiangsu Province! ?

Xiao Yansui looked at the map with a look of astonishment. Xiao Song did not doubt that he was there, but he just thought that his granddaughter had never traveled far and did not have a clear understanding of the distances on the territory map, so he smiled to himself. He explained: "Don't look at the size of this map. It will take some time to go down this road!"

"..." Of course Xiao Yansui understands the principle of the scale of the map, but she still hasn't remembered it.

She had always thought that Lanling Xiao's hometown was in Lanling, Shandong, but now she suddenly went to the free shipping area of ​​Jiangnan water town...

"This is Nanlanling County, the land of Jiangdong, Yunyang County in the Qin Dynasty, and later renamed Danyang County. The ancestral hall of our Xiao family is in Shanhai Town." Xiao Song continued to smile and said: "Jiangnan County The area is a water town, and the scenery and climate are quite different from those of Chang'an City. To the north of Shanhai Town is Danyang Lake, which is connected to the Jiangnan Canal. Once we get here, we can take a boat."

While talking, Xiao Song couldn't help but said again: "Liu Niang has never been on a big boat since she was a child, right?"

"Ah..." Xiao Yansui was stunned for a moment, and then answered the wrong question: "I don't get seasick."

Xiao Song didn't believe her, and said with a smile: "Most of the small boats when swimming in the lake do not encounter wind and waves, so naturally they will not be bumpy, but it is another experience to travel thousands of miles a day on the big boats on the Changchuan River and other rivers. "

"..." Xiao Song said the same thing. Hearing Xiao Yansui's ears, the instinctive first reaction was to think of some related content of ship fluid mechanics.

After a while, Xiao Yansui said in a low voice: "Then, if you want to reduce the influence of water flow on the stability of the ship, the most basic way is to lower the center of gravity of the ship, but the more effective method is probably to increase the width of the ship."

Now, even Xiao Song, who was talking with gusto just now, began to feel at a loss when he heard the series of words Xiao Yansui chanted.

Stared at by her grandfather in bewilderment, Xiao Yansui silently put aside the content of "Increasing the minimum capsizing moment of the ship to improve the stability of the ship" that she had read in the extracurricular extended reading, and said instead in a more straightforward way.

"Reduce the length and height of the buildings above the hull appropriately. After the cabin of the ship is shorter, the wind pressure can also be reduced, thereby making the ship more stable..."

Xiao Song smiled helplessly and waved his hands, "Don't mention this, don't mention this, Ah Weng is too old, I really can't figure it out, but when we get on the boat, you can be with that man who lives on the water all year round. The boatman asks for advice. Those craftsmen and craftsmen have eaten and lived on the water all their lives, so they have their own uniqueness."

Xiao Yansui also smiled, nodded and said "OK", and then changed the subject in a timely manner, because she was thinking about what she could do in Lanling, Shandong, and now, the destination of her hometown suddenly It became a water town in the south of the Yangtze River, and Xiao Yansui's original plan was almost completely overthrown, so he just took this opportunity to learn more about the specific situation of his hometown from Xiao Song.

"Ah Weng, is Shanhai Town near both mountains and water? You just said that the Danyang Lake in the north of the town is connected to the Jiangnan Canal, and the water transportation is very developed. Is there a big pier market nearby?" Xiao Yansui His eyes were fixed on the map, but he kept asking questions in his mouth.

In Chang'an City, there were never any lack of foreign envoys, monks, and businessmen. However, according to Xiao Yansui's superficial understanding, these people mainly came from Persia, Dashi, and Uyghur in the western regions, as well as Japan and Silla in the east.

Speaking of the Tang Dynasty, what is going on in Europe and America...?

The more Xiao Yansui thinks about it, the more headache she gets. Even in Chinese history, she only remembers some major historical events mentioned by the teacher in the history class. In the vast time, these major events that changed the world are just a few fragments Just fragments.

In particular, most of what she learned in middle school history class was modern history after the Opium War in 1840. As for ancient history, it was basically the category of extracurricular reading. As a science subject, she had almost forgotten it. I can only make a rough order of dynasties, let alone world history, which is not a test point for middle school at all. Xiao Yansui lacks too much basic understanding of this part...