Starting from Chang'an in the morning, can you reach Luoyang before the sun sets?

Li Shimin and the ministers were confused when they heard this, which was beyond their understanding.

Isn't this nonsense?

Even a thousand-mile horse can't run so fast!

Even if you don’t have a moment of rest, you can’t run from Chang’an to Luoyang in one day!

If you drag a carriage, the speed will be even slower. If you drag a cart of goods, you will run a hundred miles that day.

This is because there is a cement road from Chang'an to Luoyang. If it were the bumpy dirt road before, it would be great that it would be possible to travel dozens of miles with the cargo.

What's more, with dozens of carriages dragged, he could run from Chang'an to Luoyang in one day?

And it was not easy to see if the steam car was fast just now. Not to mention dragging dozens of carriages, even if one carriage was not towed, it would be impossible to run from Chang'an to Luoyang in one day.

Li Shimin practiced and shook his head and said, "It's impossible. It's eight hundred miles from Chang'an to Luoyang. Even my BMW can't run from Chang'an to Luoyang in one day!"

Li Jing also shook his head and said, "Unless you keep changing horses along the road, it would be impossible for you to run from Chang'an to Luoyang during the day!"

Fang Xuanling nodded and said, "Yes, he is dragging dozens of carriages. Whether so many carriages can be dragged is a problem. He can run faster than a horse when dragging so many carriages? It's too exaggerated, it's impossible!"

It's just a 800-mile run a day, how can it be impossible?

The speed of fifty kilometers per hour is only eight hours. Although the steam train cannot run fast, there is no problem with the speed of fifty kilometers per hour. Su Cheng is very confident about this.

One day when he ran from Chang'an to Luoyang, he scared Li Shimin and the others so much. If he told them that some cars in later generations could run seven or eight hundred miles in just one hour, would it scare them to death?

Su Cheng smiled and said, "This kind of steam car is relatively backward. It is indeed difficult to run fast on the flat ground. But if you put the steam car on the rails and run, even if you pull the car in dozens of carriages, it will be fine to run a hundred miles in an hour!"

"And, because the animals do not need to be pulled and run, but the machine is running, so there is no need to rest at all. As long as the fire is kept burning, it can run all the time, and you can run from Chang'an to Luoyang during the day."

If they ran on the flat ground, they would not believe it no matter what Su Cheng said. However, Su Cheng said that he was running on the rails, and they didn't know how to refute it because they didn't know what the rails were.

Seeing Su Cheng so sure that he could run from Chang'an to Luoyang in one day, although Li Shimin and the others didn't know what the railway tracks were, they already had some belief in it.

Because although this is incredible, it comes from Su Cheng's mouth.

Wei Zheng asked in confusion: "What are the railway tracks?"

Su Cheng squatted down and gestured, "It's just two irons, so thick and wide, so nailed to the ground like this. Then, the wheels of the car are like this, and you can run directly on the rails. It will definitely save labor and speed much faster than on flat ground!"

Although Li Shimin and the others had never seen a car running on the rails, they did not live in the ivory tower after all. After careful consideration, they thought Su Cheng's method was a bit interesting.

Li Ji nodded and pondered: "If you think about it carefully, what Su Cheng said is not unreasonable."

Fang Xuanling pondered: "According to what Su Cheng said, putting the car on the rails is indeed labor-saving than running on the flat ground, and the speed is faster than running on the flat ground, but it is hard to say how fast it is. After all, no one has tried it!"

Of course, no one has ever tried it for Li Shimin and Fang Xuanling, but for Su Cheng, I have long known how many people have tried it for many years.

Su Cheng smiled and said, "That's not simple, then just put the railway tracks from Chang'an to Luoyang and try it!"

Wei Zheng's face changed after hearing this. Just now, everyone was just discussing whether steam cars could run fast on the railway tracks, but they thought about the cost of laying the railway tracks.

How much iron does it take to lay two railway tracks from Chang'an to Luoyang, two railway tracks that are 800 miles long? How much manpower and material resources does it take?

I just haven't checked whether I can run from Chang'an to Luoyang in one day?

Wei Zheng said in a deep voice: "Your Majesty, I think what Duke Rong said is absolutely absolutely not allowed. It is 800 miles from Chang'an to Luoyang. How much iron does it cost to lay two 800-mile-long railway tracks? How much money does it cost?"

"Even if the steam car really runs from Chang'an to Luoyang in just one day on the railway track, so what? Can a car pull dozens of cargoes compare to the cost of laying two 800-mile-long railway tracks?"

Cheng Yaojin couldn't help but be amazed: "The railway tracks are eight hundred miles long, and if they are two, they are one thousand six hundred miles long, how much money will it cost!"

The surroundings suddenly became quiet. Everyone was amazed at the magic of steam cars just now, but now they suddenly realized that although steam cars are magical but flashy, they are actually useless.

When Li Shimin thought of two 800-mile-long railway tracks, his heart was bleeding and he hurriedly said, "Su Cheng, do you know how much money it costs to lay two 800-mile-long railway tracks? Just to test how fast this steam car can run? Isn't this a mess?"

Su Cheng smiled and said, "Does Your Majesty want to repair it? This steam car really runs very fast on the rails!"

Li Shimin sneered: "Su Cheng, are you stupid or think I'm stupid? I'm laying two 800-mile-long railway tracks just to test how fast the steam car can run?"

After all, this was a car that Su Cheng finally built. Empress Changsun quickly said: "It is already a miracle that Su Cheng can build such a magical steam car. It is difficult to finish the matter at the beginning. Maybe there will be a better way in the future."

Su Cheng bowed and smiled and said, "Since Your Majesty does not want to lay, please allow Your Majesty to lay the railway tracks. I will buy all the land or wastelands that have passed along the way. After I lay the railway tracks, I will put the steam car on the railway tracks. The steam car will travel between Chang'an and Luoyang. If anyone takes a car or transports goods, I will charge a certain fee. I hope Your Majesty will allow you!"

Li Shimin, Fang Xuanling and others were stunned when they heard this. They did not expect that Su Cheng would actually lay the railway tracks themselves.

Cheng Yaojin immediately jumped out and shouted: "What? Do you want to lay the rails yourself? Two rails are 1,600 miles! One thousand six hundred miles of iron! Do you know how much it costs?"

Su Cheng smiled slightly and said, "No, I didn't plan to lay two rails!"
Chapter completed!