My Daming New Empire

This is not a sound transmission device. The copper pipe of the sound transmission device does not care about the pressure, but the steel pipes of the brakes will leak if they are not connected firmly.

Moreover, although Daming has fish maw, animal skin, and glue made from various tree pulps, which can effectively prevent leaks, these glues are not as resistant to high temperatures.

Although Lan Yan majored in chemistry, he didn't know anything about it, and he didn't know how to make glue.

This was solved by an old craftsman. Although the glue he obtained from sulfur and pyrite was not as heat-resistant as the synthetic glue of later generations, the effect was not bad after testing.

After solving the brake problem, Zhu Zhanji realized that he was a little too impatient when he went back to solve the rail problem.

Although wide rails can be used at the beginning and wider passages are reserved, there is no need to build such a large carriage at the beginning.

Since it is a trial run, it is good to design the weight that today's wooden rails can bear from small to large.

It is not easy to change the big one, but it is much easier to change it small.

First of all, the carriage was changed to a width of three meters, and the height was reduced by more than half a meter.

The load-bearing structure has been reduced by one-third except for the wheels, and steel has been used to reduce weight as much as possible in other places, saving nearly half of the weight, and the weight is only about five tons.

The ten-ton carriage plus people will play a decisive role in the damage to the wooden rails, but after it becomes five tons, the wooden rails can bear it.

Even if the iron bars on the wooden rails are easy to wear, the wear can still be controlled within the acceptable range.

In mid-February, as soon as the Ministry of Industry produced five carriages, Zhu Zhanji couldn't wait to drive the train on the road.

Today's Yingtian Mansion has gone through a lot of demolition.Now there are no nail households, and the government ordered that the people who received the compensation immediately move out.

It's too late to move, but I'm going to jail.

Of course, Zhu Zhanji is also ordered to compensate according to the market price, and some stores can also move back as appropriate.

In Yingtianfu today, although the train is not running, the construction of the road has started since last summer.

Now two main roads, one vertical and one horizontal, have been built, plus a road around the city.

Each of these roads is more than 50 meters wide, with railways in the middle and roads on both sides.And the roads on each side are one-way streets, keep to the right.

In the age when there were no cars, such a width would be sufficient for at least a few decades.

The east-west road started from Xiamaqiao Farm and went all the way to Jiajiang Industrial Zone in the west of the city, with a length of eighteen miles.

The north-south road runs from Jubaomen in the south to Yuejianglou Wharf by the river, with a length of eighteen miles.

These two roads are not purely straight lines, and different stations are set up according to the topography of Yingtianfu, the commercial area, and the main residential areas.

The ring road is more troublesome, because Yingtianfu is not a standard square, and there are many hills and lakes in the city.However, according to Zhu Zhanji's instructions, this road mainly runs along the inner ring of the city wall, only excluding the southeast of the imperial palace and major government offices.

However, because it is not a standard square, basically these three roads can meet the travel needs of most people.

The first test run was originally planned to be on February [-]th, but because Zhu Zhanji was so excited, he wanted to be the first grandson to take the train.

The civil and military ministers dissuaded him in every possible way, thinking that this simple carriage did not meet Zhu Zhanji's status.So it was postponed for two days, and people from the Ministry of Rituals and the internal supervisor went to Xiamaqiao Farm to redecorate and arrange several carriages before they really started on the road.

In order to facilitate the train to enter the city, the gate of Donghuamen was dismantled, leaving only a big gap.

Originally, many ministers clamored for repairs, but the appearance of new explosives made many people shut up.

With the new type of explosives, no matter how strong the city wall is, what is the point of building it?

With muskets, explosives, and people wanting to hit Yingtian Mansion, they must have these in their hands, and the city walls can't stop them.

In addition to Donghuamen, Qingliangmen in Xicheng and Yijiangmen in the north were also demolished.

On this day, the train stopped at the platform outside Chengtian Gate. Zhu Zhanji boarded the train excitedly with his concubine and a group of children.

There are four carriages that can seat more than 200 people. Officials of the third rank and above and a group of servants also boarded the train.

When the train whistle sounded "Woo, woo, woo," the people watching the excitement on the side of the road knelt on the ground, not knowing whether to kneel to the great-grandson Zhu Zhanji or the "monster".

Although the current train can run at a maximum speed of [-] kilometers per hour, in Yingtianfu, a maximum speed of [-] kilometers has been established.

To give the people a period of acceptance and education, Zhu Zhanji doesn't want to see the news of train accidents every day.

With air brakes, the weight of the train is not heavy. When the distance does not exceed 30 kilometers, there is basically a braking distance of [-] meters, and the train can stop.

Sitting in the car, the people along the way, especially scholars and old people, even if they didn't see Zhu Zhanji, they were still bowing down.

Zhu Zhanji couldn't help but asked Xie Jin beside him: "Master Xie, do you now think that Gu is the one whose destiny belongs?"

Xie Jin smiled and said: "Your Highness was born with the destiny, but it is not necessarily you who are worshiped by the people today!"

Zhu Zhanji knew that Xie Jin was reminding himself not to get carried away, but he was so straightforward, it was inevitable that it would be a bit of a mess.

Seeing a group of scholars saluting from the window, Zhu Zhanji beckoned to them, and turned around and asked: "Scholar Hu, this spring has been here for more than half a month. Now that you are old, can you still bear it?"

Hu Yan smiled and said: "Your Highness, the old minister is now sixty-two, this is the first Chunwei presided over by you, but it is the last one presided over by the old minister, naturally it is obligatory."

Zhu Zhanji ordered Liu Wan to say: "Reward the hundred-year-old wild mountain ginseng that North Korea paid tribute to Hu Xueshi..."

Now that Li Liang is studying government affairs with Wang Yan, the person following him has become Liu Wan.

Liu Wanying was right, Hu Yan held the back of the front seat tightly, stood up and saluted: "Thank you, Your Highness, for your kindness, old minister."

Today's chief examiners are not the invigilators of future generations. They will go to prison a week before the question is set.The invigilator is a set of people, and the marking is a set of people, and the two parties cannot meet each other.

After the examination for scholars, the proctors will feel a little more relaxed after sealing the test papers, but the inner curtain officials need to start marking the papers, and there is no freedom for more than a month.

As the chief examiner, Hu Yan has the heaviest task. Now that the exam is scheduled to start on the ninth day of March, he will be sent to the Tribute Academy to be closed from the first day of March, and he will not be free until early April.

So Zhu Zhanji was a little worried about his body, but what he didn't know was that although Hu Yan was the same age as Zhu Di, he lived 84 years.

Zhu Zhanji in history is dead, but he is still alive and well.

Seeing his trembling look, Zhu Zhanji couldn't help laughing. "Scholar Hu, don't need to be nervous. Although the train is running fast, safety is guaranteed."

Just as Hu Yan was about to sit down and get up again, Zhu Zhanji stopped him.Only then did he smile cautiously: "It's rare for an old minister to see him, but it's a joke for His Highness."

"It's okay, let's take care of Gu Shangshu..."

Before Zhu Zhanji finished speaking, Gu Zuo couldn't bear it any longer. He opened his sleeves, bowed his head and vomited.

Although there was no vomit, there was a sour smell.

Some ministers who did not suffer from motion sickness couldn't help laughing. Gu Zuo wiped his mouth and confessed to Zhu Zhanji: "Your Highness, forgive me, I really can't bear such a fast speed, and I feel very dizzy."

Although Huang Fu is old, he behaved normally at this time. He couldn't help sighing: "Your Highness, if I lay the railway tracks all over the country, the ends of the world can only be reached in a few days. There is no need to worry about where soldiers suffer."

Zhu Zhanji nodded and said: "That's right. It's just a trial run now. When the technology becomes more mature, steel rails will be laid, and the train will have more horsepower and pull more. Thousands of soldiers and horses can travel two thousand miles a day."