After the Lantern Festival, spring will come soon. Gong Xuyang sent news to Xue Zhijing from Bianjing City, saying that a new car was ready and was going to be sent to Wanguo City for His Majesty the Emperor to have a try.

Xue Zhijing was looking forward to it being the locomotive she had been thinking about, but when the locomotive arrived, she would have a weird face.

What is this cyberpunk-style composite assembly creation of the big machine age.

A steam engine reduced to half its original size, with tires twice the height of a normal carriage, and a tall black chimney.

Gong Xuyang carefully introduced to her, "One person sits in the front of the car to keep the direction, one person stands behind the car to provide charcoal for the steam engine, and the guests sit in the top compartment."

Xue Zhijing leaned over and took a closer look. The compartment was about the height of a person. The diameter of the main tires was at least two meters, and there were many smaller tires in the middle. Some chain-like machines were used to maintain the compound in the middle. Sporty, those mechanical chains look a bit like the chains of later generations of bicycles.

"Your Majesty, do you want to try?"

Xue Zhijing took a deep breath, but considering that the scientists she encouraged should also support other people's inventions and creations, she nodded her head.

At this time, Xiao Liege, who had just returned from Liao after work, happened to come over. Seeing such a dark thing parked on the big square of the palace, he came over curiously and asked what it was.

I heard that this is the car assembled from the steam engine that sent her to the bottom of the mine last time. Xiao Liege, who was afraid of heights, shivered slightly, but heard Xue Zhijing say, "Come on, let's get in the car and sit down." Then it turned into shock.

"This, is it safe?"

Apart from riding a horse, Xiao Liege also rides a carriage. For her, even a fierce horse, which is difficult to tame, is a creature within her control. And where did this black thing come from? Come on, it's not a living thing.

However, when he saw Xiao Liege's slightly hesitant and fearful face, Xue Zhijing instantly put those fears behind him, as if after making a comparison, his worries were instantly sucked away by the other party.

"It's okay. Gong Xuyang drove this car by himself. It came all the way from Bianjing City. There was nothing wrong with it all the way, so there will be no problem."

Xue Zhijing told Xiao Liege what Gong Xuyang said just now, then turned around and asked Gong Xuyang, "How long did it take you to drive here?"

Gong Xuyang said, "It only took less than a day, it's still stop and go."

Xue Zhijing calculated in her mind that an ordinary car in later generations would probably be at this speed, so she felt even more joyful.

Gong Xuyang added another sentence, "Sitting on this car is like flying in the sky, so I named it a roller coaster."

Xue Zhijing: "..."

Xue Zhijing never thought that Gong Xuyang, who is so rigid, would have such a passionate heart, and be able to have such a name of Secondary School.But she thought about it again, in this era, the roller coaster is not a secondary school, but has some mythological color, so is it Gong Xuyang's true description of the speed and feeling of this car?

Finally, after she got into the car and the car started, she realized why it was called a roller coaster.

Imagine you are sitting in a car with a speed of more than 100 kilometers per hour, but it has no shock absorption function, how would you feel?

It tastes like it's going to knock out all your internal organs.

This is still when they were walking on the square paved with bluestone slabs in the palace. If they were walking on the yellow sand paved road outside, the dust they would bring would block out the sky and block out the sun.

It really makes people feel like they are flying in the sky, surrounded by strong winds.

And the rumbling sound of the steam engine behind him forced Xue Zhijing to yell at Xiao Liege, "How do you feel?"

Xiao Liege was even more crushed by the bumps. In fact, she is not afraid of bumps. Riding a horse is even more bumpy, but she can control herself. A good rider sometimes does not touch the horse's back, relying on the strength of the core and legs to absorb the shock .

But now, Xiao Liege is in a situation where she can't control herself at all, which makes her uncomfortable.

"Stop-stop!"

Because the width of the square is limited, this car always has to turn, but this time it is estimated that the speed has increased a bit fast, and it is difficult to turn, and the balance is limited.

Xue Zhijing suddenly had a strong sense of danger. While grabbing Xiao Liege's hand, she patted the rear compartment and shouted loudly, "Stop!"

Xiao Liege also felt that something was wrong.

Fortunately, this carriage is not closed, it is a bit like a vehicle from the Spring and Autumn period, the carriage is fully open structure, Xue Zhijing grabbed Xiao Liege, and the two of them jumped out of the car when the car turned and tilted.

The two rolled on the ground twice, and then saw that the car lost its balance after traveling forward for a while, fell completely, and then slid forward a long way due to inertia.

But the worst thing was the man who loaded the charcoal behind the car. The charcoal spilled from the steam engine and burned him.

Seeing that Xue Zhijing and Xiao Liege jumped out of the car, everyone hurried over to see if they were okay. Xue Zhijing waved his hand at them, pointing over there, "Hurry up and save people."

There is nothing wrong with Xue Zhijing and the two of them. They both ride horses all year round and have learned how to get off the horse and roll to avoid injuries. However, bruises on the elbows and other places are unavoidable. They have to use high-alcohol newly distilled from the medical school. Cleaned and disinfected.

Because Xue Zhijing and the other two were injured in the test vehicle, Gong Xuyang felt that he had made a big mistake, and his whole body was in a state of extreme anxiety, his face was pale, his hands kept shaking in front of him, and his fingers were shaking rapidly like a Parkinson's patient , She also kept reading a long string of words on her mouth, repeating it repeatedly, as if to relieve her own anxiety.

"Gong Xuyang, come here." Xue Zhijing said slowly.

Gong Xuyang didn't hear it at first, it was because the maid beside her pushed her and pulled her, that she came over.

Xue Zhijing smiled at her and said, "Don't be nervous, I'm fine."

She looked at Xiao Liege beside her, and said to Gong Xuyang, "Princess Liehuo and I rode horses since we were young. There have been many such things. Princess Liehuo once ran half the city on top of the buildings in Bianjing City. She is very good at lightness kung fu, so the matter of jumping out of the car was a carefully calculated decision, not an accident, so you should relax a bit."

Xiao Liege knew that every time Xue Zhijing faced Gong Xuyang, he was very gentle, never said harsh words, and explained in great detail.She heard Xue Zhijing mention that Gong Xuyang is a genius scientist, but correspondingly, she has lost a lot of normal people's ability to regulate emotions, and she is very sensitive and prone to anxiety.

Therefore, Xiao Liege also nodded, "It's true, I, Princess Liehuo, is someone who can fight wolves with bare hands on the grasslands, jumping a carriage is nothing, don't take it to heart."

Gong Xuyang seemed to have just slowly let go of the anxiety in his heart.

Xue Zhijing continued, "But this time I took this car, I have a new idea. The reason why the car overturned is because the square is too narrow and it is not easy for vehicles to turn. However, the expressway outside the city is almost a straight line. You will If this car is placed on the expressway, there will definitely not be such a problem. But then you need to modify this car. You don’t need to put the carriage on the roof, or the carriage is not used for passengers, just treat it as It's a horse pulling a string of carriages behind it."

This suggestion successfully turned Gong Xuyang's mind to think about how to make such a thing.

At this moment, Xue Zhijing really hated himself for not being a physicist, otherwise he would not have to always guide other people's thinking direction if he wanted something now.

Gong Xuyang explained why she did not study the front of the fast carriageway first, but studied such a composite carriage, but now it seems that it is better to study the front first, this composite carriage is too dangerous.

When Gong Xuyang left and the chef brought dinner, Xiao Liege asked Xue Zhijing, "Why do you spend so much time, energy and money on such a dangerous thing?"

"In order for us to travel faster." Xue Zhijing smiled.

Xiao Liege gave her a blank look, "I don't believe you, you only have one goal?"

"Okay, I hope to have a faster means of transportation that can connect the entire country together, and at the same time, connect the trade relations between the nations more closely."

"I think the connection is quite close now." Xiao Liege can see that their government orders can flow smoothly to any place in the country now, and the goods of the nations are also concentrated in the city of the nations by sea boats and horse-drawn carriages. Think there is something wrong.

"Have you ever eaten lychees in Liao Kingdom? Have you ever eaten a fruit called durian? Have you ever seen anyone drinking milk in the south of the Yangtze River? Oh, I forgot, you have never been to the south of the Yangtze River." Xue Zhijing He narrowed his eyes with a smile.

"This?" Xiao Liege didn't quite understand.

Xue Zhijing saw that her ignorant look was cute, stepped forward and squeezed her face, and then slowly explained, "I asked Gong Xuyang how long it took her to come to Wanguo City from Bianjing City, she said , It only took less than a day. Think about how long it took you to ride a horse to besiege Bianjing, and how long it took you to follow the caravan to Bianjing."

Xiao Liege said, "It takes two days for a fast horse to rush. After all, the horse needs to rest and the person also needs to rest and eat. It is even slower to follow the caravan. It can take ten days and half a month."

"That's it, speed, fast speed can bring the distance between two places relatively close. Not to mention anything else, just talking about commodities, you can sell many commodities that could not be sold far away before. The flow of commerce It is more active, and each place will be more like a whole."

Xue Zhijing sighed and said, "I wish Tianya could be so close."

She just missed the transportation conditions of the later generations, and said that if there was a three-day holiday, she and Xiao Liege could go to the islands in Nanyang to bask in the sun.

If that is the case, their lives will definitely be very colorful, those corners of the world that they have never been to with their lovers in the previous life, she must go and leave their footprints together with Xiao Liege.

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