The reason of the times, the rhythm of life of the people of the Song Dynasty is relatively slow, at least slower than the later generations of the Song Dynasty, there are places for pastime in their spare time, there are many, the first is shopping, the Song Dynasty East and West markets gradually disappeared, large and small more than 20 commercial centers, one by one shop to visit.

The second is an entertainment venue, go to the tile hook bar to watch all kinds of performances by artists, and go to brothels if you are lustful. Third, visit the garden, there are countless public and private gardens in the capital, some are open, some are not open, no matter how much money is not open, they will not be charged, and Yujie is undoubtedly one of the preferred areas. In the middle of May, the peach and plum flowers are gone, the lotus tea has not yet opened, but the scenery is equally moving, these trees are planted when Chai Rong, now the branches are luxuriant, the summer breeze blows, the green shadow is swaying, in the fragrance of the lotus leaves, I see countless green pears, peaches, apricots, and yellow and red semi-uniform plums, shaking between the leaves. If the branches are near, the greedy child plucks the half-ripe plum and puts it to his mouth while grinning sourly.

The weather is hot in May, and this year there is a leap March, which is even hotter.

But it's not the hottest time.

There are many people shopping, and when you go to the end of the royal street, there is the tall Xuande Gate, and the rear is the imperial city, which is not allowed for idlers. Someone saw a painting on the wall of a house on Yujie.

The painting is a kind of bridge that has never been seen before, with a bend on the top and a bend on the bottom.

This is the first advertising painting launched by Song Jiu, the four painters please go home, you don't seek any beauty, what artistic conception, only seek realism and three-dimensional sense to paint this bridge, which is different from the location of Hongqiao in later generations.

The Hongqiao in the Qingming Shanghe diagram is a little down at the intersection of the two Bianshui, and the location Song Jiu has also researched, about ten meters away from this intersection point, because there is a sharp mouth here, the bridge distance is shortened, and the difficulty is reduced.

But after the bridge comes out a new problem, water!

The length of the Hongqiao is about 30 meters, the length is enough, the Song Dynasty later developed the shipbuilding industry, but the largest river boat is only 20,000 stones, less than 1,000 tons, the width of the ship will not exceed 13 meters, and such a big ship sails into the Grand Canal Bianshui is less, more in the Yangtze River activities, Bianshui is still ordinary ships below 500 tons.

However, this length is a trouble, the Bianshui must be more than thirty meters wide, and the widest point can reach three or four hundred meters, because it is compressed by the city site, the more you go to the city, the narrower it becomes, and the length of the state bridge is less than twenty meters. In history, choose that place to build a bridge, the length is saved, but the two waters meet, the water flow hits the embankment and will produce a roundabout, so that the water flow is impermanent, rather than going down smoothly, and the river is narrow, and then it is a scene in the Qingming River map, there is nothing to do in the middle of the Hongqiao, but this water is not obedient, it is so agitated that the boat is not easy to control, so the people on the boat are nervously driving the boat, and the pedestrians on the bridge are anxious to shout. Advantages, the difficulty of building bridges is reduced, the cost is saved, the disadvantages are not conducive to navigation, and at the same time, the river island is left behind.

So Song Jiu inspected several times, moved 400 meters to the west, the span of the bridge increased by at least six or seven meters, and had to build a rainbow bridge in Nanbianshui, Nanbianshui gradually disappeared, maybe the Northern Song Dynasty would not perish, and after two hundred years, all the Nanbianshui would be moved to the ground, but the bridge would have to spend money, and the cost would increase by two times! But there are more advantages, the river island is encircled, and two rainbow bridges, one large and one small, stand on the river surface, how beautiful will the picture be? At that time, just tourists who come to watch can make money for Hezhou Rijin.

The others are not painted, only the imaginary picture of the two bridges, and the sailboats are dotted, and a bright moon in the sky, reflected in the water, is two bright moons, an incomparably beautiful picture of two bridges.

Just a painting, there is not a single text description, and the common people did not think of the desolate river island outside the East Water Gate, and asked curiously one by one: "Where is this bridge?" ”

Where, in Song Jiu's mind!

However, there were dozens of particularly smart people who saw its significance, including the Zhao brothers, and after hearing it, Zhao Kuangyin sent a painter to copy it and bring it to the palace to circulate.

Song Jiu painted it with his fingers on the tea that day, and he couldn't see it really, but now it has become a real picture, and the minister immediately thought of its meaning. In the past, they were all flat bridges, and the height of the bridge was insufficient, and there were big ships in the Yangtze River, but they could not enter the Grand Canal. But the bigger the ship, the more freight savings and the lower the cost. Low costs can enrich the national treasury, or reduce taxes for the people, and it can also reduce forced labor, which is of great significance. It is a trail, including a lifting crane, but even Zhao Pu has to admit that although it is a trail, it is also used correctly. If it is a large-scale lifting crane, only four canals in the capital can save more than 2,000 laborers a year, and will not be enlarged to the national energy saving 24,000 labor, the capital is the starting point and the end point, at least accounting for more than 20% of the country's upper and lower transport, that is also considerable, 10,000 labor can be saved, and can be put into production, not only to reduce the burden of the people, but also to create more wealth for the country.

The significance is extraordinary, is it possible to make it?

There is a single-hole bridge, Zhaozhou Bridge, many bridges in the Song Dynasty are modeled after the Zhaozhou Bridge's technique, not to mention the small hole flood discharge, only the bridge deck, it is the same as the state bridge or a plane bridge, the Song army in Jinmingchi to train the navy, but how to get out of those warships? Lower all the masts, the ship's tower, and then weigh them, so that you can get out of the state bridge and other bridges in the city, and get out of the city, and reassemble them. It's a hassle.

But no matter how troublesome it is, it can be built. Now this kind of rainbow bridge, or flying bridge, is the bridge under the bridge like a bright moon bending over the river, and the difficulty of the technique will be increased tenfold. Therefore, the monarchs and ministers were a little suspicious.

Not many people know the truth of the Tao.

The common people can't find this double bridge, thinking that it is just a painting, how to paint how they like, and they can also paint fairies and ghosts, how many ordinary people have seen the real gods and ghosts?

Some people think that if they really appear, they must go and see it, and some people will pass by with a glance.

In addition to these big shots, there is also a group of people who know the Tao. Fu Zhaoshou and Luo Yanhuan's son Luo Gui, as well as Han Chongyun's son Han Chongye, ran to Song's house, Song Jiu was not there, and he was building a house on Hezhou with craftsmen and students.

This will be the core technique of Song Jiu in the future, so the house will be very strange, at this time the Song Dynasty has immature glass skills, burned to the eye, so together changed to burn glass, the glass piece is not expected, there is no cement, but it can be replaced by other things, the courtyard wall is built very tall, and the top is built with glutinous rice flour lime, there are many sharp irons, iron nails and tribulus terrestris cost is also very high, do not ask for them, let Li blacksmith play at will, just ask for the top is pointed, the sharper the better. Prevent people from climbing.

At the same time there was a second line of defense on the roof, and a layer of iron net was cast, on which were arranged many traps, traps, and thistles, and do not expect to pry the tiles into the house, and under the eaves was a third guard, with large iron locks, and iron fences on the windows. Even Song Jiu was preparing to arrange some mechanisms in the house in the future.

The three of them looked a little dumbfounded and asked, "Jiulang, what are you doing here?" ”

Shame, the palace is not so nervous.

"Luo Dalang, Han Erlang, Fu Sanlang, didn't I say that I want to turn this river island into the most beautiful and fun place in the entire Song Dynasty."

"What does it have to do with this house?" Fu Zhaoshou looked at the various "hidden weapons" on the roof, and asked numbly.

"If you want to conjure it up, you need some techniques, and this technique will be developed here, how can I not pay attention to it?"

What kind of technique is worthy of your enthusiasm? The three of them couldn't help but look at the strange wall again, Fu Zhaoshou was sweating on his forehead, and asked the business first: "Jiulang, did you ask someone to paint that painting on the royal street?" ”

"I rented the walls of that house, whose paintings are not mine?"

"Can the bridge really be made?"

Fu Zhaoshou's father Fu Yanqing is at home for the elderly, but no one can underestimate the Fu family, the nine Fu brothers are all important generals on the leading side, and they are related to Zhao Kuangyi, and some distinguished guests often come to the family, including son-in-law Zhao Kuangyi, but it is not easy to say, these people like to play with relatives, such as Zhao Kuangyin married his daughter to Wang Xianqi's son, and Luo Gui ordered a doll parent, that is, Wang Xianqi's youngest daughter. Kiss and kiss, they are all relatives! If you don't give military power, you have to give you wealth, rich is money, and expensive is another status, high-level loose officials and relatives.

So Fu Zhaoshou often listens to these big people talking about this bridge these days, otherwise he can't figure out how important this bridge is.

He came to Hezhou, and the painting was from Song Jiu's hands, and he immediately thought that Song Jiu would build this double rainbow bridge on Hezhou.

Song Jiu nodded.

In his previous life, someone imitated this Hongqiao, he went to see it, and also saw the schematic diagram of the force on each part of it, and knew a little about the principle. The difficulty is that the bridge was made of cement reinforced concrete, which was not available in this era. And how to put the principle into practice and turn it into reality, this requires the assistance of some craftsmen who are proficient in bridges. But it's not a big problem.

The first painting is the Shuanghong Bridge, Song Jiu also thought of its benefits, no matter how much money he paid to the imperial court in the future, just with this bridge, if there is any trouble in the future, the imperial court will also support it.

"Can it really be made?"

"If this bridge can't be built, it's even more difficult to do next, Fu Saburo, it's just the first painting, and there are nineteen huge paintings behind it!"

"What are those nineteen?"

"I said that day, and when you come out, you will know the way."

"No, I have to say it."

"I won't say anything if I'm killed."

"Eat wine, eat wine," Han Chongxun said.

"I can't eat and drink today, and I'm going to go back and write those three equations."

The answer was announced by Dr. Zhang, but Dr. Zhang was very unhappy, but after such a fuss, Dr. Zhang and Song Jiu were no longer as domineering as before, and Song Jiu wondered in his heart whether Zhao Kuangyin would guess this result. It's not that Song Jiu doesn't respect them, it's that they take themselves too seriously. Song Jiu's "education" is not as high as theirs, his official position is not as big as theirs, and his reputation is not as good as theirs, not to mention his age. But now Dr. Zhang is ashamed, as long as Song Jiu is not excessive, there will be no more serious conflicts in the academy.

"What about the Pan family?"

"Are you still thinking about Pan Li'er? But there is a piece of news that is not very good. ”

"What's the news?"

"I heard that General Pan's former subordinate Zhang Bing sent someone to ask the Pan family for his son Zhang Zhaoyun, and Aunt Tian was a little agreeable (note)."

Song Jiu was stunned when he heard this, it would be very difficult for him to marry Pan Li'er, if the Zhang and Pan families were engaged, he would have no hope at all, and couldn't help but ask nervously: "Have the two parents agreed?" ”

PS: There is also a little Zhang Bing in Anhui, who is only twelve years old at this time, and the big Zhang Bing is a military general.

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