The importance of transportation to business has been at the forefront of everything since ancient times.

If you want to get rich, you must first build roads, this is not a joke. In any world, wealth begins with the transportation of goods, and this is why merchants with fleets of vehicles are able to accumulate wealth quickly. In the ancient times of the previous life and in the present of this life, wealthy merchants have mastered the transportation of goods. There are no canals in this world at present, so waterway transportation is basically along the river, so several big cities in the Central Plains are basically by the river.

Emperor Wu was also a bit far-sighted, but unfortunately, he did not have a deep understanding of land transportation. After leaving the city, there were no good roads soon, and Gao Li was forced to invent new suspension and pneumatic tires by various bumps, but now that he thinks about it, building roads is the real way to do it once and for all.

Now that Yanan's territory is becoming stable, there will be negotiations on commercial activities in the near future, and once the negotiations are settled, Yanan's terrifying agricultural products will flood into Yannan City in an astonishing quantity, and at that time, it will be impossible to digest such a large scale of products with the current land transportation capacity alone.

The biggest problem of agricultural and sideline products is the shelf life, after which the shelf life must be discussed. Anyway, the shorter the time, the better the taste. After a long time, it can only turn into alcohol.

In the last human history, trains were invented decades before automobiles, because this kind of thing that needs to take on large-scale freight transportation is certainly more efficient than a small car.

However, the new true qi locomotive, Gao Li can't invest in it himself, he needs to pull people in.

The princes of Yanan need to invest money together, two branch lines, running through the entire territory of Yanan!

This will be a very long-term fundamental investment, which will drive the development along the railway line at a terrifying speed. In the early years, Ah Mei, you can see that the initial wealth accumulation history of the country is almost equivalent to the history of railway development. It's just that the only drawback is that it takes a long time to build, the investment is large, and it is difficult to recover the cost in a short time. This requires the princes along the way to have enough business vision and enough courage to do so.

Gao Li's dream is very ambitious, but there is one biggest problem that needs to be solved urgently.

He doesn't have a real gas locomotive.

He has ridden in various cars from the green skin to the Fuxing to the maglev in his previous life, but his real understanding of trains can be said to be equal to zero.

But!

There are two little brothers in their company, who claim to be train enthusiasts, and they know a lot about the history of trains and the various types of trains. Speaking of which, it was a set, and Gao Li heard a lot of it. In order to drive heavy loads, the engine part of the gas locomotive also needed to be redesigned, and it had to meet the needs of long hours of operation and heavy loads. Moreover, there is another problem, and that is the source of true qi.

At present, the main source of power for the real gas machinery produced by Gao Li is the driver himself, which is more than enough to cope with the driving of the car and the work of the tractor, after all, the energy conversion rate of the real gas machine is quite high. But once this thing enters the category of a 60-ton wagon, it is completely different. Gao Li needed to get a traction head large enough, and the low-speed torque should be large enough to drag hundreds of tons of cargo on the track. And this traction head also needs a structure that can store true qi.

At present, the only thing that Gao Li can store true qi is that kind of white sand. In Yannan City, Baisha can already be mass-produced on a small scale, but if it is to meet the needs of long-distance transportation, how to charge Baisha is a problem. After all, you can't stop and immediately find a group of masters to replenish Baisha's true qi, right?

Where can I get an infinite source of true qi?

So, all the questions come back to the source of everything: what is true qi?

So far, Gao Li's understanding of true qi has come to another stage - multidimensional space. This is a conclusion based on the combination of Yi Yiyi's understanding of true qi and Gao Li's own scientific literacy.

Gao Li believes that the true qi itself does not exist in this space, and the true qi that we can see and touch now is very likely to be a projection of some kind of energy to this world. Because Gao Li has always wondered one thing, the energy level of the True Qi itself is actually very low, but the energy level of the True Qi is very high. This is unreasonable, and the explanation that Gao Li can think of is that the True Qi itself operates in another world and affects this world. The true qi that can be seen in this world is just a shadow most of the time, just like a person watching an explosion from a monitor, although the level of the explosion is different, and the scene seen in the monitor is different, but the real power of the explosion can only be reflected by the explosion location.

For example, a person can control the true qi of that world in a way similar to a touch screen, that is......

Is this a mobile game world? Gao Li was a little stunned when he thought of this, it shouldn't make sense. If this is a mobile game world, it should be a mobile game developed by him, but his mobile game does not have such a complex background setting, it is a vague background, overhead, ancient world, and that mobile game has no evil and celestial.

Thinking of this, Gao Li smiled bitterly, and sure enough, he still wanted to return to the previous world in his heart.

Think about the previous life, even when you eat and go to the toilet, you have to carry your mobile phone. Since I came to this world, I have lost the company of my mobile phone. I felt a lot more relaxed, and I didn't know what was going on.

Forget it, don't think about it, let's think about the train honestly.

Energy storage, on the contrary, has become a big problem.

Without high-speed energy storage equipment, it is impossible to take a group of masters to charge along the way, this thing is not sustainable.

It's really not good, boil water, right?

There is high-quality coal in Yanan, how about mining coal to boil water on the spot and drive the steam engine?

The structure of the steam engine train is complex and complex, but it can be said to be simple and simple. The principle of the steam engine is known to anyone who has been in junior high school, Gao Li was once taken to the Railway Guerrilla Memorial Park by a brother named Gao Sen to play, there is nothing new in the park, but several retired locomotives were thrown in the garden as specimens. At that time, Gao Li ran up and down with a group of children, and saw the front of the car thoroughly, and probably remembered the principle.

I didn't expect it, I didn't expect it, I thought I was going to start the era of real punk, but I didn't expect to boil water in the end? The essence of human beings is still boiling water after all......

The standard rail is one meter and five wide, there are many types of track steel, Gao Li Ji is not very clear, about five centimeters wide at the head, ten centimeters high, ten centimeters at the bottom, and one centimeter thick at the waist, this type of track should be able to meet the current needs. Laying train tracks is a very systematic project, leveling the road, laying the roadbed, laying sleepers, laying rails, installing road studs, and joining the rails, which is a very complex process.

No, you still have to find a way from the real qi engine, the steam engine is too troublesome, and you have to draw the drawings until you vomit.

Before it started, Gao Li already felt a headache.

The battle that had taken place outside the city in the morning had spread to all the princes in an instant, and although it was not known what they thought of it, there was at least one welcome change—the negotiation process was much smoother than before.

Gao Li still didn't show up, but from the news from inside the palace, it seemed that everything was fine.

In that case, there was no need for him to continue to spend here.

Two days later, Gao Li found the Empress of Tsinghua and bid her farewell.

Hearing that Gao Li was leaving, a trace of panic appeared on Empress Qinghua's immature face. Everyone in the whole Yanan knows that the reason why she can have her current status is entirely because she has a Gao Li behind her. But now that Gao Li is leaving, leaving her alone, how can she support this dynasty? However, when the words came to her mouth, she couldn't say it, but said: "I also know that it is precisely because of your help, King Yannan, that I can have where I am today. But I also know that King Yannan is busy with things, and it is impossible to stay here all the time. So, don't worry, I can do it myself!"

Gao Li saw the stubbornness in the girl's eyes, and this stubbornness was as cute as a child in the rebellious period. So cute that Gao Li wanted to reach out and pinch the child's face, but seeing her talking and talking, claiming to have changed from 'I' to the word 'I', Gao Li still couldn't stretch out his claws after all.

This is the majesty of the little empress.

"When I go back, I will plan a railway line between Yanan and the Central Plains, and if it can be completed, the efficiency of cargo transportation between the two countries will be improved by hundreds or thousands of times. When the time comes, it will be easy for Your Majesty to eat some Central Plains food. Gao Li said with a smile.

"Then I am waiting for your good news here!" Qinghua said.

"Stay tuned. "Gao Li Dao.

After greeting Empress Qinghua, Gao Li then went to find Ruan Weiwu. At this time, Ruan Weiwu, He Chai and Du Miao were discussing things together, and when they heard that Gao Li was leaving, the three of them were a little surprised.

"Leave in such a hurry, is there anything urgent in Yannan City?" asked Ruan Weiwu.

Gao Li slapped a piece of paper in front of Nguyen Weiwu and said, "I plan to build such a freight mode between the two countries, and it is like this." ”

Gao Li explained the basic concept of the train to the three princes, and then the three princes were full of consternation.

"You say, this thing can pull 100,000 catties of goods in one carriage?" Ruan Weiwu didn't believe it at first.

"Yes, but that's a long-term plan, and there are still some technical problems that have not been solved at the head of the tractor. Gao Li had a slight headache.

"What's the problem? Say it and we'll help you!" Du Miao was most envious of Gao Li's endless new gadgets, and he couldn't wait to blend in with Gao Li's technical group.

"...... you" Gao Li looked at Du Miao, and was about to refuse, when he suddenly remembered, isn't this a ready-made solution in front of him?

What is Du Miao best at? The fusion technology of evil and machinery! And evil has extremely strong cultivation! At present, no equipment can charge true qi, but living beings can! Gao Li has no way to charge the front of the car by pressing a person on the driver's seat, but he can find a way to build a true qi locomotive that combines evil and celestial technology!

Think about it, a car with its own consciousness, with eyes on its head, can still run on its own, and maybe be able to chat with the driver when it is idle, isn't that ......

Iron Train Man?!