Before Ang Lee set off to open up the Maritime Silk Road, he had prepared a large number of drawings and materials for the people in the R&D center, and instructed them to develop them, so that when Ang Lee returned to Datang, these things could be developed.

However, these things are the most basic materials, and there are some mechanical parts, which are not products that can be used independently, so even if these things are semi-finished products, even if they are developed, they will not attract the attention of others, and they will not even let the general public know, so the magnates and people in the capital will feel that these guys in the R&D center are waste, and they have not been able to develop new products in the long time that Ang Lee has left.

As for Ang Lee, as long as these talents under his command can complete all the research and development tasks assigned by him, they are already very good, and Ang Lee will reward them.

In the eyes of the average layman, the development of these strange materials is a complete waste of time and resources, because there is no use at all.

But in Ang Lee's eyes, these things are very important, every product is of great use, as long as it can be developed, it will provide strong support for the next development of finished products.

For example, Li An asked his subordinates to develop special steel with higher hardness and toughness, which seems to be a piece of steel and is useless, but some of the products that Li Ang will develop in the future are very much in need of such special steel.

The gun is a new weapon that Ang Lee wants to develop this time, and some parts of this weapon have relatively high requirements for steel, and if the material is not qualified, the gun cannot be used.

Although the gun is much smaller than the cannon, but the technical requirements are higher than the cannon, after all, when the quality of the cannon steel is not enough, the barrel can be made thicker, and the gun can not be like this, if the gun is made very thick and heavy, then it will lose the meaning of the gun, so that a soldier can not easily carry the gun to fight, is definitely not a qualified gun, that is to say, the weight of the gun must be limited, absolutely not more than the soldier's weight-bearing capacity, moreover, the lighter the better, The lighter it is, the more effective it is.

In addition, there are tuning forks, electromagnetic induction coils and other special equipment, in the eyes of everyone, they are very strange inventions, I really can't see what use these strange things can be, but Li An knows that the huge role of these things is of great strategic significance to changing the Tang Empire.

All these inventions need to arrive in Chang'an City before they can carry out operations, and for this reason, Li An will not stay too much in Guangzhou City, at most he will rest and go back.

In addition, since they have returned to the Tang Dynasty, many guards and horses can return to their respective units, and some temporarily recruited soldiers and horses can also choose their own places according to their own wishes.

After only one day's rest, Li An took his two wives and more than 1,000 entourages to board a special train deliberately sent by the imperial court, left Guangzhou City, and headed for the capital Chang'an.

As the soul of the Tang Dynasty, Li An's worth is very high, everyone knows that Li An's existence and how great his influence is on the Tang Empire, the court naturally wants to provide Li An with the best treatment, and he is even about to catch up with the emperor.

In order to prevent accidents, in front of Li An's special train, there is a small guard train that departs half an hour in advance, once the railway is artificially damaged, then, the accident will also be the guard train in front, not the back of Li An's special train, so as to protect Li An's safety to the greatest extent, which is still a lot worse than the safety of the emperor's travel, but this is already very good.

It's already autumn, so the farther north you go, the cooler it gets, and even a little cold, and you can see that autumn has really arrived when you look at the withered leaves outside.

However, staying in the private room of the train, you will not experience the cold at all, and there are enough reliable heating equipment in it, which will make the passengers in the car very comfortable.

Because Li Ang was not in a hurry to return to the capital, the speed of the train was neither fast nor slow, and it was always moving at the established speed.

When Li An went south, he took three maids, Yun'er, Beauty and Black Pearl, and when he came back, there were more White Fox, Magpie and Li Xiaolu, a total of six maids, and this time, Li Hanlu and Li Ya'er came with Xiao Yin and Xiao Meng, so in addition to the two ladies, there were eight maids around Li An.

On the next trip to the south, there were three more maids, and they were all beautiful women, which not only made Li Hanlu a little uncomfortable, but Xiao Yin and Xiao Meng were also secretly competing, and it seemed that they were deliberately trying to compete with the new white fox trio, especially Li Xiaolu, who looked peculiar.

In addition, because Li Xiaolu, White Fox, and Magpie had never seen railroad tracks and trains, as soon as they got on the train, they were like dirt buns, and their surprised eyes were about to fall out.

However, Yun'er and the beauty have gotten along with them quite well, so they still insist on answering all kinds of questions they raise, and in addition, they are also very friendly to mediate, so that Xiao Yin and Xiao Meng don't bully the three of them, and Yun'er's words are obviously very effective, and they slowly stop competing, and everyone becomes friendly together.

"Sister, I'm going to Ezhou Bridge soon! Shortly after the last time I passed the bridge, I saw the mountain in front of me. ”

Li Ya'er looked at Li Hanlu and said.

Li Hanlu said with a smile: "Ya'er, did you think of the pair of grandchildren you met when you came, it was just a meeting in Pingshui, and I am afraid that you will never meet again in this life." ”

Li An asked curiously, "What grandson?" ”

Li Hanlu briefly told the ins and outs of the matter 1510, so that Li An could understand what happened.

"Haha! I can't imagine that an old woman from the countryside also knows me, oops! Your husband, isn't it very powerful, very powerful, very powerful! ”

Li An said proudly.

"Well, my husband is the best."

The two said together.

"If you still want to see that pair of grandchildren, then we might as well stop in Ezhou for a while, and it is okay to leave later."

Li An said.

Li Hanlu shook his head and said, "How can this be? Besides, we don't know where the grandparents live, but if we rush to find them, there must be a convincing reason! You can't just meet the two of us to meet each other, so we deliberately look for someone! If it is spread out, it will damage the prestige of the husband, and those who don't know it may be what it will become? ”

For the grandparents and grandchildren who met in Pingshui, although Li Hanlu felt that there was fate, he also felt that there was no need to deliberately look for people, after all, there was not much intersection between them, they just met once, and they had some good feelings for each other.

Li An said with a smile: "Who said that I was going to find them, I think the scenery of Ezhou Bridge is good, let's stop and appreciate some more time, if we happen to meet their ancestors and grandchildren, it is fate, if we can't meet them, we will meet other people, and we will not return empty-handed." ”

"If that's the case, that's great, it's really nice to have a very nice view."

Li Hanlu agreed very happily.

The matter of fate, what is particular is chance encounter, only occasional encounters, that can be called fate, if you deliberately look for it, then it is not fate.

Li An got up and went to the outside of the private room to convey the order, and the train soon entered Ezhou Station.

Because the train passes through the bottom floor, and the pedestrians are on the upper floor, when crossing the bridge, Li An and others sitting in the carriage cannot see the pedestrians on both sides, and all they can see is the white river, and after the vehicle passes the bridge, they can see the pedestrians passing by.

After the vehicle stopped, Ang Lee, his two wives, and dozens of retinues and escorts, walked to the Ezhou Yangtze River Bridge, ready to enjoy the stunning scenery on both sides of the bridge.

And in order to protect Ang Lee's absolute safety, the soldiers in charge of guarding the bridge mobilized a lot of strength to stand guard on the bridge that Ang Lee was going to pass, and there was a soldier in charge of almost every distance.

Of course, the premise is not to disturb the people, and all pedestrians cannot be stopped just because Ang Lee wants to take the bridge, so that the pedestrians' trip will be delayed, and this kind of behavior is what Ang Lee does not want to see.

"Husband, this time we came at the wrong time, we didn't see the foggy river, the foggy bridge, is the best, now far away can see clearly, there is no meaning at all."

Li Hanlu said.

In many cases, hazy beauty is the real beauty, and it can make people's hearts move the most, because hazy can not only cover a lot of imperfect places, give people a perfect feeling, but also give people infinite reverie, imagine what kind of scenery is behind the unclear vision, so that the heart is full of infinite fascination.

It's like some people who like to wear a translucent veil when they're fine, so that their appearance can be half-covered and half-exposed in front of the world, which is more attractive and fascinating than directly exposing it.

Generally, on the surface of the Yangtze River, it is easy to float a layer of foggy fog, but this is also time-based and climatic, not all the time, but more common.

For example, during the Battle of Chibi of the Three Kingdoms, Zhuge Liang relied on the foggy weather to obtain the legend of borrowing arrows from grass boats, because in the environment of the Yangtze River, foggy days are a very common climatic phenomenon.

For example, Napoleon, a kid, once used artificial methods to create foggy weather, thus achieving a great victory in the war.

In places where water sources are abundant, the water vapor in the air is very abundant, and in this case, if the air is filled with a large number of dust particles, then these dust particles will bind the water vapor together, thus forming a haze.

Napoleon's army was stationed in a depression beside the lake, and he asked his soldiers to celebrate his arrival, and raised a large number of torches, which, when burning, inevitably threw a large number of dust particles into the air, which, when combined with water vapor, formed a fog, in which his soldiers and horses were hidden, suddenly rushed out and crushed the enemy in front of them.

"Wouldn't it be nice to have no fog, so that we can see farther, besides, it's afternoon now, and it's a sunny day, and even if there is fog, it should have cleared a long time ago."

Ang Lee said with a smile.

Foggy days generally appear at night or in the morning, once the sun rises at noon, the water vapor in the fog is evaporated, so that the fog will naturally gradually disperse, unless the fog is particularly large, and it is in the winter when the sunshine time is shorter, otherwise, there will be no fog in the afternoon, and, according to Li An's impression, even if it is a particularly large haze weather in winter, as long as it is after noon, the fog will basically dissipate. The vast majority of fog dissipates by 10 a.m., and it is very rare for a fog to persist into the afternoon.

"Oh, it seems like this, the last time I passed through here, it was indeed morning, but now it's afternoon, I see."

Li Hanlu nodded thoughtfully.

Maybe it's because it's early to get on the road, the last time Li Hanlu passed here, he saw obviously more pedestrians than at this time, and at this moment, because it was afternoon, the pedestrians on the road seemed a little sparse.

Li Yaer didn't talk to Li An, she focused all her attention on observing the passers-by, maybe she very much hoped that she could see the grandparents and grandchildren she met before again, but she was also disappointed again and again, there were many people passing by, looking at the past from a distance, it looked like the person she was looking for, but after getting closer, she found that it was not the grandparents and grandchildren she saw last time.

"Bud, don't look at it, there won't be such a coincidence."

Li Hanlu opened his mouth and smiled.

Li Ya'er turned her head helplessly and looked at Li An and Li Hanlu, while Li An looked at Li Xiaolu, the white fox and the magpie with a surprised face, because the expressions of these three people were so excited, and their eyes were about to fall out.

"You three take a good look, this is the Ezhou Yangtze River Bridge I told you before, it's very magnificent!"

Ang Lee said proudly.

"This bridge is too big, and Ah Lang is too powerful."

The three little maids were all very excited to respond.