After yesterday's freezing rain, the temperature suddenly dropped in the middle of the night. When they woke up in the morning, they felt very uncomfortable.
It was written in the newspaper that they had to wear more clothes. When it was hot in the afternoon, they had to take off their outerwear.
Today was not the first day of the month, so there was no court meeting. Everyone stopped at the same time.
Everyone came to Zhuangzi's square and set up firecrackers.
The most conspicuous place was covered with a red silk cloth. The first rear-wheeled six-wheeled steam engine car of the Tang dynasty appeared on the stage.
The people from the Imperial Astronomer made up another story, saying that they had observed the stars last night and how good the weather was.
No one knew where they had observed it. Last night, it had been drizzling, and it had only cleared up in the morning.
After Li Longji's speech and the ribbon-cutting ended, the red silk cloth was lifted amidst the sound of firecrackers, revealing the eight-meter-long, two-meter-wide, and two-meter-tall steam engine car.
The craftsmen personally got on the car, starting the engine, adding coal, and opening the valve.
Puff puff puff! Woo ~ ~! Rumble rumble, the car started to move. The rubber wheels didn't seem to bear too much weight.
Like a train, there was no need for animals to pull it. Water and coal were given, and the car moved on its own.
The driver controlled the speed and slowly made a circle.
After two circles, the Winged Knights led the way to Ba Bridge. Everyone followed in the carriage.
When they reached the other side of the bridge and reached the spacious main road, the Winged Knights quickly shouted for the passersby and cars to move out of the way.
The driver adjusted the intake and exhaust valves. More steam started to work, and the car's speed increased.
Accompanied by smoke and steam, the car rushed forward at a speed of a little more than 25 kilometers per hour.
The commoners all moved to the side of the road to watch the show. Why did the big guy run to the ground? Shouldn't it be on the railway?
No, it looked smaller than the one running on the railway. It was much smaller. Why did it have to walk on the ground?
After about ten minutes, the steam engine car slowed down, turned slowly, and sped up again.
When it was about a hundred meters away from the original position, the stoker removed the fire, and the exhaust valve let out steam.
The commoners gathered on the road and looked at the ground. The big guy didn't crush the ground. It still needed to be repaired.
"It's a little heavy." Wei Zhigu said as he walked around the steam engine car. It was too big.
Li Yi nodded to the craftsmen, who began to move things down from the cart.
Stone locks used for training were taken out of the car's storage box one by one. Each one weighed 50 catties, which was the catty of the Tang dynasty.
A total of 200 yuan. When converted to Li Yi's weight, it was 6.4 tons.
"Fill it up with coal and water, and take into account its own weight and load, it can run a hundred li at a time. Reduce the load and increase the driving distance proportionally.
In the future, a similar type of steam engine car would be built and used in the capital's Chang 'an to travel to various counties twice a day.
It was used to help the commoners transport goods and transport goods, so it was a little bigger.
The plow used in the fields is two times smaller than this one, less than ten feet long and less than five feet high. It has four wheels and three plows. "
Li Yi gave the answer at this time. Those who needed to run a long distance with heavy loads had to be big, while those who needed to plow the fields had to be small.
They were afraid of compacting the ground, which would require the use of ropes. The steam-engine cars could not get off the ground, so long ropes had to be tied to the plow to pull them along.
That kind of land was not easy to design, the distance was too long, unless the steam locomotive went into another land.
The roped plow and the car were not a single unit, so they still relied on people to control the direction and depth.
Wei Zhigu nodded, indicating that he understood. "Along the way, there will be coal and water warehouses. The car itself will pull too much coal and water, and the power will be used to carry the load, like a railcar."
"For plow the fields, the car itself should transport coal and water to the field." Yao Chong expressed his opinion.
Li Dan opened his mouth several times, but closed it again. He had been shocked yesterday.
As he read to the end of the book, he realized that the things he was thinking about were in the book, and they were more comprehensive.
It was no wonder that Xiao Yi talked about the tea leaves. She was clearly advising him not to speak carelessly in the future.
Fortunately, it was Xiao Yi, so he would not laugh at her.
"Li Dongzhu, this guy will run on the ground in the future?" The surrounding commoners shouted.
Li Yi glanced at Guo Ziyi, and Guo Ziyi nodded.
"Let them come over, don't be afraid." Li Yi also shouted. In theory, it was impossible for the commoners to be premeditated assassins.
Without even searching their bodies, the Winged Knights led the commoners forward one by one.
The commoners rolled up their sleeves and placed their palms in front of them, as if this could prove that they would not harm others.
"Put your hands down, it's cold, so roll up your sleeves." Li Yi went forward and helped pull up their sleeves.
The commoners were excited and moved. Li Dongzhu trusted them.
After everyone calmed down, Li Yi said loudly, "Before the end of the year, the Governor will make two trips a day from Chang 'an to the various counties.
Everyone can spend some money to ride between the two trips. The exact amount will be printed in the newspapers.
Compared to riding a horse carriage or boat, it is faster and can carry more weight. It will only be cheaper and not expensive.
In addition, before next summer, the Governor will have steam cars in all counties, making traveling between the counties more convenient. "
"Okay! It's cold to ride a plow in the winter, and slow to ride a boat in the summer. "A commoner believed Li Yi's words.
"Li Dongzhu, can it work in the fields?" The commoners who owned land thought of using it to plow the land.
There were a lot of stone locks beside it, proving that it was much stronger than a cow.
"It's more expensive than a cow or horse, and it's faster. It can be used to plow and plant new rice. We will give subsidies to those who plant it."
Li Yi reminded them that the price was high, so they had to consider whether it was worth it.
If they did not think it was worth it, they could continue to rent animals or use their own animals to plow and plow the land.
"Write it in the newspapers, I will go back and think about it. I will plow it and show it to everyone. We can't go up the mountains, and we still have to use animals. Anyway, I don't plow, it's tiring and slow. "
The commoners who plow did not want to return to the past. They were sad.
After communicating with the commoners, the group returned to Zhuangzi. The steam cars continued to run without the stone locks.
When they met commoners walking on the road, they invited them to get on the cars and run to the east and west of the city.
Before noon, all the commoners in Chang 'an knew about it.
Li Dongzhu moved the things on the tracks down. The cars could run on the ground.
When it was freezing and snowing, they took this kind of car to and from Chang 'an. It was said to run twice a day, but it ran so fast that it could run four times.
…
"Gang Rou, is it easy to build this car?" Zhang Jiuling asked Li Yi after lunch.
"The first car is the most difficult. After that, it's easy." Li Yi brought a plate of fruits.
"Is the cost high?" Zhang Jiuling looked at the washed fruits on the plate and frowned. He pursed his lips and swallowed his saliva. He felt sour before eating.
"It depends on the usage period, the cost of coal and water, and the manufacturing process.
Increase the loading and seating space of the big car. According to the ticket price I gave, you can get back the cost in five years.
It's the same in the capital government. If it's in other places, you can get back the cost in ten years with maintenance in between.
If you want to use it in other places, you have to fix the road first. The road that can only pass through the steam cars is not wide enough. It has to be at least 30 feet wide.
After the road is fixed, I can use it until it's broken and not get back the cost. It can be used as a subsidy. "
Li Yi said what Zhang Jiuling wanted to say. If you miss your hometown, I can ship it to the seaside. It's closer to the land from there.
You have to fix the road. The road you built has to be widened. Otherwise, the steam cars can't run.
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