As the piston moves faster and faster, so does the rotation of the wheel driven by the linkage rod, which eventually remains at an eye-popping speed.

"It's such an exaggeration?"

"I've seen an experiment where someone could run a simple Stirling engine for an hour with a cup of hot water at 1,000 rpm."

"And I didn't expect this thing to be so quiet."

“……”

"On the one hand, after the friction is reduced, the sound is naturally reduced, on the other hand, the heat engine is not as good as the internal combustion engine, does not need to do detonation work and intermittent combustion, plus it is not affected by air pressure, it can operate in a closed environment, and now the biggest use is to put it on the submarine."

"We don't need submarines right now, but with this guy, it shouldn't be a problem to build a car."

"The real sense of the car is still far behind, and this kind of engine volume and power ratio is too large, it is not suitable for cars and ships, but at our current scale, it is not difficult to build a four-wheeled vehicle that can run."

"Then let's try it now? Is there still a need for labor? Wei Dalei said.

"Actually, there's no need to be so troublesome, don't we have a ready-made car?" Tang Jing smiled.

"You mean?"

Chen Du turned his gaze to the large container truck parked by the wall, "That big guy? ”

"That's right." Tang Jing said with a smile, "AG's simulation toy car has always been known for its details, this car has only one shell for the engine battery, and even the linkage between the tires and the steering wheel is completely realistic, of course, there is no electronic power assist." ”

"Put the engine on that car?"

"That's a great idea!" Wei Dalei laughed.

The boy's love for the car is innate, and you don't see a little boy who can just walk can look at the excavator for a day without being noisy or noisy.

Since having that truck, although it can't be driven, old Wei Zhuhao and others will still climb up from time to time to have a good time, and now when they hear that they can really drive this car, they naturally raise their hands in favor.

"But there are still some places that need to be renovated."

Tang Jing led everyone to the side of the truck and introduced, "First of all, the engine does not use fuel, and the heating element must be replaced for at least ten hours, so the location may have to be moved to a more convenient place to operate, and secondly, such tires may not be able to adapt to the current ground." ”

"Is it too rough?"

"Well, I propose to switch to a tracked one."

"It shouldn't be difficult." Chen Du, who already has experience in building engines, said he is full of confidence.

"Isn't this a tank? Can you drive into the grass? Wei Dalei asked.

"No, the weight and size of the car itself are not enough, and the flat dirt can barely pass, but there are too many plants, so it will definitely not work."

"That's still very limited, huh?" Chen Du sighed, thinking that with this crawler truck, the range of motion could be increased, but now it seems that the requirements for the road surface are still very high.

"At present, the function of the vehicle is only to replace walking, saving physical strength and time, and it is still far from being popularized on a large scale."

"But without a car, we can't all walk if we want to go further in the future."

"There are two solutions to universal transportation." Tang Jing said, "The first is to build roads, of course, the current road surface does not meet the requirements, if you want to popularize cars, you must first build roads, and the new smooth road surface is repaired in all directions, can it be opened to traffic?" ”

"Good guy, it's harder than building a car."

"It's difficult now, but there will be more people in the future, it's not impossible, not to mention that it's not for you to build it in one day, isn't our country's road network as large as it was also built in just a few decades?"

"It's been decades, forget it, it sounds desperate."

"Then there's only a second option."

"What?"

"A different means of transportation." Tang Jing said.

"For example?"

"Like Gundam." Tang Jing said with a smile.

"This ......"

"Actually, it's nothing, we talked about it before, in reality, you can't build a humanoid mecha, the biggest problem is that the load capacity of the material is not enough, but this problem no longer exists, and in complex terrain, the mode of walking on two legs is far more convenient than any wheels and tracks.

"Of course, the humanoid mecha I am talking about is not the kind of machine that can synchronize its movements with people as you see in the cartoons, it is still too far away, but if you only use a few specific movements to achieve the effect of walking, you can still expect it."

Chen Du was a little dizzy when he heard this, and sighed, "This still sounds very far away, and the requirements for operation are too high, let alone mechas, among those of us, do any of us know how to drive?" ”

"You have to be 18 years old to get a driver's license, you say?"

"I will." Wei Dalei grinned, "I often drive my dad's car, but I only dare to drive it in his company's yard." ”

Wei Dalei's father is engaged in construction, and also runs a building materials factory, because he is busy with work, he does not discipline Lao Wei too much, basically just put the pocket money in place, which also leads to Lao Wei since he was a child, he secretly drove to play at the age of twelve or thirteen, and was found by his family after a few beatings, but he still did not change, Lao Wei was helpless to this son, and then simply taught him to drive at the age of sixteen, of course, he was still strictly ordered not to drive out, and could only play on his own field.

Although Chen Du and Wei Dalei often hang out together, they are actually limited to the school, so I really don't know that he can drive.

However, then Dong Junwei said, "I will ...... too Because I don't have to apply for a driving school to get a driver's license now, I found someone to teach me at home last summer, but I haven't officially gone on the road. ”

He Ying followed, "Me too." ”

Tang Jing chuckled lightly, self-evident.

Chen Du was stunned for a moment, and in the five-person decision-making group, I don't know how to drive.

Okay, you're all old drivers!

Chen Duan, who had never touched the steering wheel, thought hatefully.

"But driving a car and driving a mech are two different things."

"Then just do it in one step." Tang Jing said.

"What?"

"Since there are too many restrictions on ground transportation, flying can always solve these troubles." Tang Jing spread her hands.

"Build an airplane?"

Chen Du covered his heart with his hands, trying his best to calm down.

I just built the engine today, and I want to build an airplane tomorrow.

"The plane is a little bit worse." Tang Jing smiled: "But an aircraft is not necessarily an airplane. ”

"What do you mean......"

"Hot air balloons, think about it?"

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