And how long does it take for Datang's 20,000 troops, even if they are cavalry, to be 2,000 miles away? At least fifteen days! Li Chengqian's heart quickly gave a number! Because the cavalry could not set off directly without anything, and the grain and grass and baggage needed to be carried, even the cavalry in a hurry could not rush forward every day.

Otherwise, even if you get to the destination, you won't have any combat effectiveness, and that's a huge gap, fifteen days and a day...... By the time they arrived, the daylilies were cold.

When the speed of movement of the scenery outside the window remained stable, Li Chengqian and the others all calmed down, but at this moment, looking at the scenery outside the window, everyone didn't know how to express it, according to this speed, even if the speed of the war horse of the big man they were in was faster than this, it was not much faster.

The point is that war horses will get tired, and it is impossible for war horses to carry hundreds of tons of things to run so far.

"I understand what Leader Huo means, I'm afraid he wants to negotiate with his father to build this railway to the Tang Dynasty, and I'm afraid it will be built at least to Chang'an." Li Ke hesitated for a moment, and then spoke, "But I'm afraid my father may not believe such a thing, so the leader of Huo Gang asked the eldest brother to write this impression." ”

Li Chengqian nodded, they also thought of this, and such a thing, do they need it? I'm afraid it's needed, because although Li Chengqian doesn't know much about what technical crushing is, they know that if they don't want a train, the gap between them and the big Han will get bigger and bigger.

The gap between the two is already very big now, if there is no train, think about it, the control time of the entire territory of the Han Dynasty, and the control time of the entire territory of the Tang Dynasty, the time gap between the two is too big, even the so-called eight-hundred-mile rush cannot be faster than this speed.

The scenery outside the window is still moving backwards rapidly, and in just such a moment, they estimate that they have traveled at least dozens of miles, and they are pulling nearly five hundred tons of supplies forward, if they use horse-drawn carts, how long will it take to get so much food? It takes at least 800 wagons a day's journey, and now they are only half an hour.

This is the gap, such as the transportation of food and other materials, the consumption of personnel on the road is also huge, but this mode of transportation will reduce the loss of these grains on the road to the limit.

Not only food, but also other cloth, all kinds of material transportation will be accelerated, which has a huge benefit to the operation of business.

"You all have the idea to observe, especially Huailiang, Baoqi and the two of you, you are experts in this field for military applications, so you all have to give me advice on this."

"Yes!" Cheng Huailiang and the others immediately agreed.

"Ladies and gentlemen, you can tell me all the options you can think of about the train in all aspects." Although Li Chengqian has all kinds of ideas in his mind, after all, he is the only one, and he may not think so thoughtfully, and if so many people think about it together, there will not be any big mistakes and omissions.

"Yes." Everyone else nodded.

Li Chengqian and the others quickly stood up and began to observe the surroundings, and at this moment, in front of the car, behind the car and even in the middle, Lu Feng was constantly busy, mainly observing the operation of the steam engine of the train and other aspects, if there was no problem, they were not ready to stop, but directly arrived at the industrial city.

This is also the first time that the steam engine in the heavy-duty state is running at full strength, not only for the locomotive, but also for the railway, and even for the connecting parts of each carriage.

Li Chengqian, on the other hand, had already noticed that on both sides of the railway, every three kilometers or so, there was a person in uniform holding a green flag next to the railway, and there was a red flag in his other hand.

This is Li Chengqian's guess, and he definitely doesn't know the specifics, but no matter what, Li Chengqian still has to carefully observe these details, and he is also thinking about what kind of benefits the entire railway Datang can get if the railway is built to Datang.

In fact, there are many problems with steam trains in history, but the difference between Dahan is that the casting process of Dahan is far more than the casting process of steam trains in the same period in history, and it is estimated that it is similar to the current casting process of Dahan until the 20th century.

It's just that at present, Dahan's application of electricity is still in the theoretical laboratory stage, and it is currently being developed and used on a large scale, but it is estimated that it will be put into use soon.

With Huo Gang, there is no need to take detours in the study of electric power, and it is enough to directly carry out alternating current, which only needs to continue to teach them to learn, and the new batch of children who have begun to receive education in these aspects since they were young, and when they grow up in a few years, they may be the first batch of children in Dahan to really receive modern education.

They will also hold up the sky of the whole Han next article.

Time passed quickly, just over an hour, more than two hours later, the black smoke from the industrial city in the distance was clearly visible, and it was constantly approaching, and the train had begun to slow down gradually.

Li Chengqian glanced at the sun in the sky, and in just over an hour, the road of more than 200 miles had been completed, and nearly 500 tons of materials had been transported along with it, and if these 500 tons of materials were to be transported by horse-drawn carriages, it would take about 800 horse-drawn carriages to transport them for two days, and it would take at least ten hours to walk every day.

The train only takes more than two hours, and if possible, at least 5 trains can go a day, and if these patrol members start patrolling at night, then these trains can run even at night, because there is nothing to see on these tracks, just keep moving forward.

In fact, the railways of this era are indeed the same, and the difference is that because of the railways of this era, it is impossible to hire all the personnel to monitor all the railways, so there is an obstacle remover installed in front of the locomotive, and the obstacle remover is only a little higher than the rails, if there are trees, or other obstacles fall on the tracks, the obstacle remover can directly shovel away the obstacles, without affecting the operation of the train.

When they arrived at the Industrial City, everyone got off at the railway station in the Industrial City, and there were more large buildings around here, and this was the first time Li Chengqian and they had gone deep into the interior of the Industrial City, not to mention that the chimneys that were at least tens of meters high, or even hundreds of meters high, shocked them.

With such a tall chimney, how huge must the burning beneath it be? And what can be seen in the distance, the huge steel structure that is more than ten meters high does not know how to forge it, if it is built by the craftsmen of the Han Dynasty, just this huge steel column structure, more than a dozen craftsmen will not be able to forge it in a year.

Even if it is forged, it is impossible to be so neat, because when it is built, how can such a huge steel column structure be turned over? How much power does it take? And how the so-called gantry crane like that is forged, they don't know at all.

They really don't know how it works.

Standing here, Li Chengqian suddenly felt a kind of hesitation, that is one, obviously he is standing in a treasure house, but he doesn't know the treasures around him at all, at this time Li Chengqian suddenly realized why the education of the Han Dynasty does not teach what is the so-called Four Books and Five Classics, the words of the sage, under such an industrial system, what is the use of the words of the sage?

Can the words of the sages make a train? Is it possible to make such a huge industrial city?

No, the craftsman system of the Han Dynasty is announced in the entire newspaper, they have all read the newspaper, the status of the craftsmen of the Han Dynasty is so high, when it reaches its peak, it can be said that there is no difference with Fang Xuanling Du Ruhui and others, although there is a difference in specific power, but in terms of social status, there is really no difference.

Even higher than Fang Xuanling and the like! Because according to the newspaper, prime ministers like Fang Xuanling and Du Ruhui can be cultivated in batches, but a top craftsman, oh, the Han calls it a scientist, a top scientist, that is not cultivated in batches, every top scientist, talent, hard work, luck, etc. are indispensable.

Therefore, every scientist is a gift from God, and this is how Dahan's newspapers publicize it, so Dahan gives these scientists a very high status, so now Dahan's industrial city will have today's scene.

And not only that, but now all the common people, businessmen, and even some big families in the whole Han want their children to study and be able to become a noted scientist one day. Such an atmosphere is not available in Datang at all, and the words of sages such as the Four Books and the Five Classics, which Datang really valued, are just the foundation here.

Some people may delve into it, and the Han will call these people writers, but most of them don't study these, most of them will study those different disciplines such as arithmetic, physics and chemistry, and these subjects are called science by the Han Dynasty.

Here, Li Chengqian felt for the first time the prosperous era of the Spring and Autumn Period, when a hundred schools of thought bloomed and a hundred schools of thought contended! Now Dahan has this trend. And Datang ...... Li Chengqian suddenly understood Li Shimin a little, because of the Han Dynasty, Huo Gang can be said to do whatever he wants, but the Tang Dynasty, Li Shimin can't be like this, at least the current Tang Dynasty Li Shimin can't be like this.

Thinking of this, Li Chengqian made a decision in his heart, no matter what, the train, Datang must have!