I am the cook, but I am Li Er's son-in-law

Li Shimin was terrified when he heard that.

Hit a wall.

Even if the person is not dead, there is probably only one breath left.

Yin Xuan also wondered when he heard it: "I'm already a tester, how can I get the brakes and accelerator wrong?"

The scholar shivered for a moment, and it took him a while to tell the truth: "Yes... he is a classmate from the rubber processing experiment department next door. He said he wanted to try it out, so we gave him a place as an experimenter."

Yin Xuan clicked his tongue and shook his head: "Have you reported it to Fengchao?"

"Reported, reported!" The scholar nodded repeatedly. He dared not hide this matter, or... there is an unwritten rule in Fengchao.

You can make mistakes, no one is a sage, no one can make mistakes, everything is in mistakes, and only then can we move towards the right step by step.

But you can't hide your mistakes.

Especially like this... a fault involving a human life, if you try to hide it, the consequences will only be more terrible than the real loss of a human life.

"Where is this car?" Yin Xuan asked.

The scholar replied honestly: "It is a test machine produced before. Except for the brake parts, it is no different from the scrapped test machine in other respects."

That said.

But... Considering the capabilities of a car, the most important thing is safety, followed by various performances.

Yin Xuan turned his head, looked at Li Shimin, and sighed softly: "I wanted to take you for a walk in the car, but now it seems that I can't."

"But...you can let him run two laps to show you."

Li Shimin nodded.

The scholar turned around and got into the car. He started the car. He drove very smoothly. After all, the car had some problems with the brakes, and... there was a car accident just yesterday.

Li Shimin just watched so seriously.

He quickly noticed that this kind of car was very stable, much more stable than a horse-drawn carriage, and the speed was also very stable, but the puffs of black smoke seemed a little unpleasant.

With the train of pearls and jade in front of him, he would not feel astonished as if seeing a miracle.

"How fast can this kind of car go?" Li Shimin turned his head and asked.

Yin Xuan replied: "Now... the fastest is about 100 kilometers per hour."

"How much?" Li Shimin raised his voice.

"It can reach more than 100 kilometers per hour at the fastest." Yin Xuan repeated, he paused, and then continued, "But for safety reasons, it is generally recommended to be more than 60 kilometers per hour."

Li Shimin looked at Yin Xuan in surprise: "Is this faster than the train?"

Yin Xuan nodded: "Yes."

"Why?" Li Shimin asked again.

Yin Xuan looked at him, did not answer, but asked back: "Are you sure you want to listen? And... are you sure you can understand after listening?"

Li Shimin's face froze, and the hand he just raised rested on his chest.

Can you speak well!
"Forget it." Li Shimin waved his hand angrily, "I don't understand anyway, so don't waste your words."

"How much does this thing cost and how does it use coal?"

He asked a new question that he could understand.

"The cost is not very expensive. A car is about one or two hundred." Yin Xuan briefly introduced, "As for the use of coal... this is indeed a big problem."

"It's almost like a train."

"However... that will soon be out of the question."

Li Shimin became alert and grasped the key point: "What do you mean it won't be a problem soon?"

Yin Xuan waved his hand, and said lightly: "The energy conversion rate of this steam car is really too low. There is a project at Fengchao, which is to study internal combustion engines."

"If that thing is produced, the efficiency is about three or four times that of a steam engine."

The steam engine researched by Fengchao now has a thermal efficiency of about 13.00%, which is already quite an excellent result. The best steam engine in later generations has a thermal efficiency of only 20.00%.

Can…

If the internal combustion engine is researched, the initial thermal efficiency can break through 20.00%. If you concentrate on the research for a period of time, it will be easy to pass 30.00%.

Saying three or four times, this magnification is not an exaggeration at all.

Li Shimin stepped back on the bicycle again, and sighed sadly.

He now feels that it is really good that he did not turn against Yin Xuan for the sake of the so-called face, not to mention the double-efficiency internal combustion engine.

He didn't know what an internal combustion engine was, and he didn't know what the concept of twice the efficiency was—enhanced endurance or enhanced athletic ability.

But he understands the car and how useful it is.

The train is a good thing, but the disadvantages of the train are also obvious-the route is fixed and the rails are needed. As long as the rails are blown up, the train will not work.

Before... the case of the outflow of arms, such a thing happened.

It's just that the Tang Dynasty now has Haiyan and Heqing, and there is such a great god as Yin Xuan guarding him, so nothing like this has ever happened again.

But this is always a hidden danger.

Li Shimin wrote seven or eight articles on how to conquer the railway strategy.

Now, this hidden danger has been lifted.

When the car appeared, it didn't have much requirements on the road section. It could run on concrete and dirt. Li Shimin saw it having fun on the dirt in the distance with his own eyes, and it didn't have any effect.

and…

The laying of railways is limited, and it is suitable for the connection of two long-distance places, such as Chang'an and Luoyang.

But it is impossible to say that there is also a railway between the two Zhuangzi.

Cars are unlimited.

Even if there is no such thing as a car, the cement road still needs to be built, but... with the car, the importance of the construction of the cement road is even higher.

The strategic significance even exceeds that of trains.

As expected of what Yin Xuan said, it is no less than the changes brought by the train to Datang.

"The way to make this thing...will not be given to the court?" Li Shimin thought for a while, and was about to laugh when he suddenly thought of something that made him swallow his smile back, and asked quietly.

The court still doesn't know how to build the train.

They only know how to lay railways and how to build carriages.

But... the key parts of the locomotive have always been built by Fengchao, and then handed over to the court.

Yin Xuan smiled implicitly and nodded: "After all, this thing is intended to be sold as a commodity."

"Think about it, this Fengchao brand car, don't you want to own one?"

Li Shimin turned his head.

Seeing that the car slammed on the brakes, but slid and slid a long distance, he nodded: "Of course I want to. It would be better if the brakes can make people feel at ease."

Yin Xuan spat.

If I had known earlier, I would have dragged Li Shimin here yesterday.

"Although the method can't be handed over now, I can make a deal with the court." He shook his head and stopped entangled in this topic.