A post-apocalyptic female soul travels back to the War of Resistance against Japan

Furthermore, ceramic wheels will be used as a substitute for steel wheels. Of course, these ceramic wheels will need to be processed by Chu Qiao using her fire-based abilities before they can be used.

Moreover, ceramic wheels processed with fire-based abilities have extremely high hardness and good wear resistance, and can produce sparks when rubbed against flint.

Furthermore, the ceramic wheel, made from processed ceramic material, has a special texture that increases friction with the flint, further improving the success rate of ignition.

The wick is made from hemp fiber or plant fiber. If you want it to be heat-resistant, non-flammable, and have a certain degree of adsorption, you need glass fiber.

The ceramic was to be found by Chu Qiao, who had fire-type superpowers, with Shi Mobai assisting her and also buying some waterproof materials, items, and tools.

After everyone had their assigned tasks and all the necessary tools and supplies were prepared, it was already three days later.

After preparing everything, the group began to study it. First, they studied the appearance of the outer shell. Ye Wuhen drew several beautiful designs, and then Ye Jinxuan took charge of the process.

Ye Jinxuan used his wood-type supernatural ability to shape ten of each of the several patterns in the drawing.

Although the outer shell is made of wood, it has been processed using supernatural abilities, so the surface is polished to a very smooth finish and the patterns on it are very rich. Even without any coloring, the natural color of the wood is exceptionally beautiful!

Moreover, the interior space is very spacious, and the next step is to install the flint and other components.

Make a hole at a suitable location on the outer casing, insert one end of the flint-fixing spring into the hole, and then place the flint on the front end of the spring. The spring should be able to stably hold the flint in place, ensuring good contact between the flint and the ceramic wheel.

Of course, the flint and spring were prepared in advance to ensure that the ceramic wheel could rotate flexibly after installation.

Furthermore, the friction between the flint and the ceramic wheel is moderate, which can produce sparks without requiring too much effort.

Finally, a type of plant fiber extracted is woven into a fine thread and placed at the bottom of the outer shell to replace the cotton wick and function as a lamp wick.

The other end passes through the pre-drilled hole and extends a certain length. The thickness of the thread should be moderate to ensure smooth oil absorption.

Inject an appropriate amount of kerosene into the casing through the oil injection hole. Be careful not to inject too much kerosene to avoid overflow and potential danger. After injecting the kerosene, seal the oil injection hole.

After completing these steps, a windproof cover was installed on the outside, mounted on the top of the casing.

The final step is to check and adjust the ceramic wheel gently to check if it can generate sparks smoothly.

Observe the oil flow from the thin thread. If the oil flow is too fast or too slow, adjust the length of the thin thread immersed in the fuel accordingly.

Test the lighter's performance in different environments, such as in windy conditions, and check its windproof performance. Further optimize and adjust it based on the actual situation.

Through experiments, they discovered that when kerosene is used as fuel, some impurities will clog the outlet, and over time, the lifespan of the lighter will be shortened.

However, in this ancient time, there was nothing else that could be used as fuel. Finally, Shi Mobai suddenly had a flash of inspiration and thought of something.

"Brothers, have you thought of something? There's another thing that's incredibly useful!"

Shi Mobai kept it a secret for a moment and didn't say what it was directly.

But seeing that no one seemed too curious, I got bored and revealed the answer myself.

“You’ve forgotten about alcohol, but we didn’t have it in ancient times, so we need to process it further.”

The others' eyes lit up; this was a good idea, they could give it a try. Finally, Ye Wuhen made the final decision: "I'll go outside and buy some wine right now."

Ye Jinxuan suddenly said, "Uncle, wait a moment, I have something to tell everyone."

So everyone looked at Ye Jinxuan, "After these two days of making lighters, I feel that there are many inconveniences in staying at the inn, and if we buy wine and then make alcohol, that would also be a problem."

“We can’t keep doing all this inside, and it smells really bad. Why don’t we find a small courtyard outside, just big enough for us to live in? That way we won’t have to hide from outsiders all the time!”

In fact, everyone was aware of the problem, but no one had brought it up yet. Now that Ye Jinxuan had raised the issue, they decided to take action.

Ye Wuhen nodded and said, "Then let's find a quiet courtyard first. It doesn't need to be too luxurious; a regular farmhouse will do."

So this time, everyone acted together and decided to go out and find a satisfactory courtyard.