"This is iron?"

"It's iron!"

"What iron!"

"Damn, it worked, it really worked! Bi Fang has practiced iron! ”

In the first venue, the crowd cheered.

Someone even burst the salute on the spot, and streamers fell from the sky and fell on everyone's head.

"It worked!"

", where did you get the flowers?"

"Thirty-six yuan a piece, it is sold in the small shop next door, and it is said that it is a physical reward......"

[This is a miracle!] 】

【Iron !!! 】

[With so much charcoal, how many lamb skewers do you have to rely on? 】

[The temperature is absolutely ridiculously high! 】

Bi Fang used a long wooden stick to pick up the iron ingot, but the bottom seemed to be firmly stuck, and he had no choice but to take it out together with the furnace bridge.

At the moment when the furnace bridge came out of the land, the camera quickly pulled in, and only saw that on the furnace bridge, the black iron was uneven, and there was still red light in many places, flashing and flashing, as if metal was breathing.

Holding the stone and smashing it hard, it is almost visible to the naked eye to deform, which is a state of almost melting......

That's amazing.

The audience at home and abroad was amazed.

Before Bi Fang, no one had ever been able to go deep into the jungle alone like him, refining iron without anything......

It's an exaggeration.

In comparison, those who find "wild ore" and bring it to the factory to refine it are undoubtedly a piece of shit!

This is not at all to teach people how to survive in the wild or how to use their hands, it has reached the point where how to rely on wisdom and re-establish human civilization without the products of modern civilization at all!

The appearance of iron has made Bi Fang's live broadcast completely different grades from the past.

In the past, it could have been said that survival in the wilderness was simple, but now, it is completely different.

From catching fish to chicken soup, from single-slope sheds to shelters with walls and roofs, to having clothes on rainy days.

All kinds of stone tools, salt, and now iron.

All the necessities of life are available, and even more high-end materials have appeared.

No one doubted that Bi Fang had brought a bag of wheat seeds instead of a pair of shorts and a straw skirt when he got off the plane......

No!

Maybe as long as a piece of potato, or even a potato, give him more time to search, and he may not be able to find a stable source of carbs that can be planted!

【god！ 】

[God can't condense a piece of iron in the wilderness]

[This is the birth of civilization]

[Messier presents the streamer's spaceship*10 - To civilization!] 】

[Fat Cat Pete Presents Anchor Yacht*1 - Respect for Civilization! ] 】

[Pork heart shrimp presented to the anchor meatball*66 - respect for civilization! ] 】

[I don't have any money, but! Respect for civilization! Give Fang Shen a small salute! 】

[What I'm watching is not a live broadcast, it's the evolution and process of human civilization]

The audience was even more excited, almost speechless, anyone who has gone through the process of more than ten days and witnessed the birth of iron with their own eyes will be like this.

A full six million viewers witnessed this scene, witnessing what civilization is and what wisdom is.

Thought or object?

There were no tables and chairs in Huaxia before, not because there were no materials and capabilities, but because there was no concept of tables and chairs.

The most valuable thing in this world is not the oil gold mines, but the human mind.

Thought, more precious than gold and diamonds, is the most precious treasure of the entire human civilization, and anyone who wants to imprison people's minds will definitely suffer backlash in the end.

"You're so excited, and of course, I'm so excited."

The heart beat violently, making Bi Fang start to gasp.

"But my goal is not just to make iron, remember what I said? To refine an iron tool, at least a dagger. ”

"I'm kind of overestimating the production of iron bacteria."

Bi Fang put his hand next to the iron block, and at this time, there was a comparison, and the audience realized how small the iron lump with red light was.

It's just a big nail!

Relying on this piece is obviously far from enough, it is far from the requirements of the iron sword.

"Originally, I thought that ten pieces of soil cake were enough, but now five pieces are only the size of a fingernail, it seems that it is not enough, but there is no need to worry, in addition to the yellow iron bacteria, I also dug up rusty soil behind, and the iron content of the soil cake made of rust soil is higher, which is enough to surprise us."

Bi Fang kept taking deep breaths to calm his excitement.

This moment is far from over, after ironmaking, there is still wrought iron.

"The slime secreted by these iron bacteria is mainly divided into iron hydroxide, and I added charcoal as the reducing agent C, and plant ash as the co-solvent K2CO3, and the three were mixed into mud and fired at high temperature in a furnace to successfully train iron."

"Grass ash is decomposed into potassium peroxide and carbon dioxide under high-temperature roasting, which reacts with charcoal together with the carbon dioxide produced by combustion to form gas carbon monoxide, and carbon monoxide is finally reduced to clay that is already iron oxide to obtain iron element."

"If we smelt all the iron, it will be difficult to melt it, at this time it is already iron elemental, although there may be a lot of impurities in it, but it is no longer comparable with the original powdered iron oxide."

The original plant ash is powder, and iron oxide is also powder, blending with each other, and the reaction is natural and simple.

Bi Fang smashed the black lump in front of him with a stone, and smashed out all the iron blocks inside, but there were some surprises.

The iron lump is not only the one on the surface, but there are two smaller ones inside, which add up to the size of a knuckle, and in addition to these three pieces, there are also a lot of fine iron sand, but they don't add up much.

Bi Fang immediately struck while the iron was hot, put five pieces of clay cake into it again, and continued refining.

"Don't put too much soil cake at a time, too much may be half the result and cannot fully burn the reaction."

In the evening, Bi Fang refined twenty pieces of clay cake and obtained an iron ingot slightly larger than his index finger.

I put it in my hand and checked it, and it was very heavy.

[Enough, right? I feel ......]

[Flattening should be about the same?] 】

Bi Fang shook his head: "It's not enough, what can only be done by doing this, what's the use of the blade I want, shave?" ”

Touching the stubble on his face, Bi Fang was amused by his words.

"What I want is a knife with practical functions, at least a dagger, not to mention that there are a lot of impurities in it, and when it comes to wrought iron, the volume will be further reduced."

For the next two days, Bi Fang continued to make iron, and went out hunting with a bow and arrow, catching a snake and a hare, and at the same time catching the fish from the fishing grounds.

On the sixteenth day of survival in Banna Rainforest, there are five days left before the end of the mission.

"Hey!"

As soon as the fish was poured into the puddle, the water monitor lizard habitually ran over and was scared away by Bi Fang's spear.

After living together for a long time, the water monitor lizard has become more and more bold, Bi Fang still dares to come over to feed next to the puddle, he doesn't care, not blind.

I was beaten hard last night, and I was a little more honest today.

[Is it good, good is good]

[Hahaha! 】

When I came to the shelter, there were dozens of large and small iron ingots on the ground at this time, and many times, a piece of clay cake could be refined into several pieces, the big one was the size of a knuckle, the next one was the size of a fingernail, and the smaller one was the size of a bean.

Bi Fang gathered all the iron in his hand, and he almost couldn't hold it in one hand.

It's heavy, almost a kilogram in terms of weight alone!

Even if you count the wear and tear and fold it away, it weighs one catty, five hundred grams.

The weight of a tactical knife is generally about four hundred grams, and that is still counting the overall weight of the handle, and these catties in front of him are enough for Bi Fang to forge a dagger.

The only question was how to forge it, he didn't have a hammer, only a stone hammer......

However, there are stones that are harder than iron, quartz stone, and bean bluestone, which are all hard and tough, and are easy to knock out.

With this knock, you have to break your arm, right?

Let's try it again when the time comes, Bi Fang shook his head, wanting to see if he could melt these iron pieces first and forge them directly in the mold, which would be much simpler, at least simpler than direct forging.

There are only five days left, and Bi Fang already has a sense of urgency, originally found the iron bacteria, thinking that time is more than enough, but he didn't expect that the real big thing is to build knives!

After bringing all the iron, Bi Fang went back to the blast furnace, put the iron into a clay bowl, sprinkled with plant ashes, spread firewood around it and lit it, and then kept adding charcoal, the whole process was the same.

At this time, the audience no longer cared if they could practice the iron sword, they did not have the task of systematically arranging tasks, nor did they have a sense of urgency to finish the iron, and the moment Fang Shen refined the iron, they felt that they had been completed.

The white smoke stopped.

Bi Fang lifted the lid and added the pottery bowl.

Thankfully, the scarlet iron has a tendency to melt, but it's only a trend, and it's only the iron sand at the bottom of the bowl that really starts to melt.

Hundreds or thousands of grains of iron sand, less than one-third the size of a grain of rice, melt together and stick to the bottom of the bowl.

"If you want to completely melt a large piece of iron, the conditions are still a little worse." Bi Fang raised his head and looked at the chimney, which was more than two meters long.

The current conditions are not enough, and they must be further improved!

"The chimney needs to be further heightened, to three meters, and we have to make a blower, so that after that, it's pretty much the same."

Throw the iron into the bowl and do what Bi Fang says.

He went to the river again, dug the clay, washed the clay, raised the chimney, and then made the blower.

The blower is very simple to make.

"The main components are the fan on the inside and the enclosure on the outside that restricts the airflow."

Bi Fang took two pieces of hard bark, each twenty centimeters long and five or six centimeters wide, each with a groove in the middle, aligned with each other and inserted, and a cross-shaped fan blade was completed.

Then he took a thin wooden branch, peeled the bark of the tree, made a cross with a stone dagger in a section, divided it into four small petals, and inserted it into the center of the fan blade.

At both ends of the fan, the fiber rope is used to wrap and tie it to ensure that it will not fall apart due to material problems.

The next step is to make a shell on the outside of the fan blades out of clay, so that all the air flow from the fan is concentrated in a single air outlet.

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