Princess Changle is actually as clear as a mirror about the matter between Su Cheng and Wang Shengnan. She knows that Wang Shengnan is in love with Su Cheng, and Su Cheng also has some feelings for Wang Shengnan, but she thinks that the two should not make the last step.

In the past, she did not regard Wang Shengnan as a threat. Now that she has given birth to the eldest son for Su Cheng, she will not regard Wang Shengnan as a threat.

Anyway, Wang Shengnan could not threaten her wife's position no matter what. As for what happened to Wang Shengnan and Su Cheng, can that be a big deal?

So, Princess Changle did not hold her back, but asked curiously: "What's the use of this thing?"

Su Cheng explained: "This thing is useful for many purposes. For example, it can be installed on the wheels of a car. This thing is more elastic and comfortable to install on the wheels."

"However, I don't have any plans to make tires yet, that's too difficult. I want to use this to make a piston."

Princess Changle, Wu Xi and the others were a little confused when they heard it. They could imagine it when putting it on the wheel, but what is a piston?

"What is a piston?" Wu Qi asked in confusion. There was a little bit of it with Su Cheng. From time to time, Su Cheng would pop up a word that they had never heard before, which made them confused.

"Piston, that's it!" Su Cheng gestured with his hands while describing.

As he was talking, he suddenly found that Princess Changle and the others' faces were a little red and looked at him with some anger.

Su Cheng was speechless. Princess Changle and the others thought he was telling dirty jokes. How could he do it? He also looked at the occasion for dirty jokes.

Whether it is ancient or modern, young women are

Su Cheng directly explained: "To put it bluntly, I just want to make a car, a car that can move forward by itself without horse-drawn or pushing!"

Princess Changle and the others heard this and opened their mouths and looked incredible.

"Just use this? Can you create a cart that does not require horse-drawn or pushing?" Princess Changle asked in surprise.

Su Cheng smiled and nodded and said, "Yes, with this, you can create a car that can move forward without being pulled or pushed by others!"

Wu Qi blinked his big eyes and looked puzzled: "How is it possible? No need to pull or push, how can the car move forward? The car is not a living thing!"

Luo Xiangfeng smiled and said, "Didn't the man just say that he used this thing to make a piston? It would definitely make this thing come alive and turn the car into a living thing, so that the car can move forward by itself!"

Princess Changle said in surprise: "Make the car into a living thing? Is it the car into a semen? Could it be that this rubber block is a magical medicine that can transform the car into semen?"

Su Cheng was already stunned, shocking Changle and the others' rich imagination. It would be a pity to not write novels with his rich imagination.

Su Cheng waved his hand and said, "Forget it, I can't explain it clearly to you. When the steam car is built, you will naturally understand."

Shen Xiao asked weakly: "Master, what's the use of creating a car that you can move forward? Isn't it good to pull a car with a horse?"

Su Cheng smiled and said, "How expensive is the horse? It consumes a lot of food and grass, and the horsepower is limited. If you can run without a horse pull, the car can run, which is easier and more convenient, right?"

"How can ordinary people take a carriage? If there is a car that can run without pulling a horse, then ordinary people can take a carriage even when traveling far away, and it is faster than a carriage and pull more goods. This is of course a good thing!"

Chen Xiao suddenly realized after hearing this. Princess Changle and the others naturally understood how meaningful it is to not pull a horse.

But they really couldn't imagine how the car would move by itself without pulling or pushing.

Unless they really become a sensation as they thought, Su Cheng's meaning doesn't seem to be a sensation.

However, Su Cheng actually said that he could create a car that could not be pulled or pushed by others, so he would definitely be able to create it. Although they couldn't figure it out, they just believed it.

Even if Su Cheng said he could fly to the sky, they believed it...

Oh, Su Cheng can really take them to the sky.

Princess Changle asked with concern: "Did the husband ask clearly where did Sister Wang find it? Is it still useful?"

Although there are quite a lot of rubber blocks in the room, since this thing is of great use, of course, the more it is better.

Su Cheng smiled and said, "I forgot to ask about this. There must be some. Rubber flows out of the tree. As long as the tree is there, there will be some. If you can get the seeds, you can also plant them in Yunnan."

"But, let's talk about this later, these alone will last a long time."

Princess Changle smiled and said, "I have the opportunity to ask Sister Wang, and we will send someone to find rubber blocks and collect seeds at the same time."

Su Cheng nodded and said, "Well, that's fine, by the way, you guys go and do your business. I want to go to the study and think about how to design it."

"By the way, butler, you go and gather all the blacksmiths in the farm to the workshop there, prepare more soybean oil, pine branches, wax, and coal..."

Su Cheng ordered the butler while walking. The butler agreed repeatedly and kept Su Cheng's orders firmly in his heart.

Princess Changle saw that Su Cheng was obsessed with making cars and knew that she could not disturb him. She ordered her to lock the warehouse and send someone to watch it carefully. She should not lose a piece of rubber."

After saying that, Princess Changle took Wu Xi and the others back.

"Wang Shengnan is quite good at pleasing. He has spent so much effort to please his grandfather. He must be happy. He is really good. Why don't you tell us if you want to find this thing? Is our Duke's Mansion short of people or money? Humph!" Wu Xi said in a delicate voice with some taste.

Princess Changle smiled and said, "The husband just mentioned it in front of her by accident. She can remember it in her heart and is willing to spend so much manpower and material resources to find it, which is considered to be intentional."

"Although our Duke's Mansion is not short of money or people, it does not have the foundation of aristocratic families, and aristocratic families are better at finding than us."

"I've found time to invite her to go to the mansion. Speaking of which, since the husband went to war, she has left Chang'an and hasn't been together for a long time."

In the study, Su Cheng sat in front of the desk and began to think seriously. He had to draw the drawings in a general way, which was more intuitive and easier to explain to the craftsmen.

First of all, the issue of refining glue is not necessary to think about the dense mixer, and can only use the turn-on mixer.

It should be enough to use two round stone piers directly. If there is no electricity, it will be man-made to rotate. Although it is a bit difficult, it can still be used to train the raw glue and then design the mold to vulcanize it.

Then there is the most important steam engine, the drawings of each component, the overall installation drawings, and then the design of the frame, how to turn...
Chapter completed!