After five hours of firing and cooling, the fire in the kiln was completely extinguished.

I can't see any sparks.

After the pyrolysis of firewood, a strong smell of charcoal fire also swept in with an overwhelming momentum.

Anyway.

Lu Yu casually picked up a small wooden stick on the ground.

The ravine along the door line kept pounding.

Not for a while.

The hard clod of dirt inside the door line collapsed with a bang.

A black mass emerged from within.

It's constantly steaming and smoking.

Looked at.

Lu Yu was overjoyed, and hurriedly pulled closer to the camera and took a closer look.

"Look, brothers—"

At this moment, the originally gray-white eucalyptus branches, after incomplete burning, have long been turned into fragments of charcoal.

Gently picked up with a wooden stick, and they rolled down one after another.

This amorphous charcoal not only fully maintains the original structure of the wood.

There is also a lot of tar left in the pores.

At the end of primitive societies, it was this amorphous charcoal that was used in the smelting of bronze and iron tools.

With this thing, it will be much more convenient to smelt copper by fire method!

As long as the temperature is controlled and the copper material is restored, it should no longer be a problem!

“6666！”

"Did it really turn into charcoal!?"

"Posture up!"

"It's time for BBQ!"

"Qianli Gangneung also gave 666×10 —— to the anchor in one day, which is a bit interesting!"

"If you don't cultivate immortals for a day, you will feel uncomfortable and give the anchor a plane× 1——!

"Ride to eighty miles and give it to the main super rocket× 1—— convinced!"

Talking.

Lu Yu picked up a piece of charcoal with good integrity and showed it to the audience:

"Looks pretty good. ”

"This amorphous carbon, which not only provides high temperatures, is also a great reducing agent. If you are in a cold area, it is also a good choice for heating and grilling food. ”

"This charcoal should be enough for us for a long time. Even if it's not enough, it's okay, if necessary, just re-fire the kiln. The method is also very simple, as just before, pile up firewood first, and then block the door line with mud. As long as the door line is still there, the charcoal kiln can be used repeatedly, which is very convenient. ”

As Lu Yu spoke, he took out the charcoal in the kiln with a wooden stick and put it aside for later use.

Returning to the furnace again, he added some wood to the fire to keep it alive.

Wait until the fire is almost burned before you speak:

"Alright, guys, you're all set. ”

"It's time to get started—"

"First of all, you must first lay a layer of charcoal as the base, and after the charcoal is completely red, you can directly put the mineral powder. You don't need a container, just throw it into the fire and burn it. ”

The ancient method of smelting copper is actually very simple.

In the beginning, there was no furnace, so it was common to dig a random pit, build a fire, and throw the ore powder directly into it.

It was not until later, when productivity had developed to a certain extent, that people began to learn to use furnaces in order to obtain better quality metals.

Followed by.

After pouring in the mineral powder, Lu Yu didn't say a word, and poured another layer of charcoal on it.

"The more charcoal, the better. ”

"The more the merrier. ”

"The more charcoal, the higher the temperature, and the reduction effect will naturally be better. ”

As he spoke, the entire furnace was covered by charcoal.

It's going to be smoking non-stop.

At this time, Lu Yu was not idle, and hurriedly pulled the drill bow of the blower-

"Hoo ——!"

"Hoo ——!"

"Hoo ——!"

With the push and pull of the bow drill, the bark fan blades inside the blower also began to work.

The results are not bad.

The wind is strong and persistent.

In a few moments, the inside of the furnace was red.

"The fan blades in the blower are not angled, so they can provide enough wind power regardless of whether they are forward or reverse. ”

"Our task now is to operate the blower to keep the furnace heating up and melt the copper oxide. ”

"It's going to be a long process, from an hour at least to two or three hours at most, so work hard – try to get it done before it gets completely dark. ”

As soon as the words fell.

Lu Yu's hand speed rose sharply.

The fan blades of the blower, whirring, keep blowing the red charcoal fire!

Ten minutes later.

After all the charcoal in the furnace turned red, Lu Yu gradually relaxed and rested for a while.

"Hoo ——!"

Taking a breath, Lu Yu continued:

"Let it burn for a while, and then let's use the remaining mud to pinch a melting cup. ”

A melting cup, as the name suggests, is a container used to smelt copper.

As long as the reduced copper material is put inside, and then blessed with charcoal fire, it can be smelted into liquid copper.

The production of the melting cup is very simple.

Knead with a little mud.

The size is your own, and it's almost fine.

As for the method, it is no different from making a pottery cup.

Start with a mud cake as a base.

Then use mud strips to surround the wall.

Finally, the seal is smoothed.

Soon.

It only took five minutes for a delicate small clay cup to be made by Lu Yu.

"With a melting cup, the harvested copper can be turned into liquid copper. ”

"At that time, we only need to pour liquid copper into the clay mold, and the stone axe will be roughly formed......

After speaking, Lu Yu returned to the furnace and checked the fire.

The stove was blazing red.

Burned-out soot abounds.

Seeing this, Lu Yu couldn't help but say, poured a large amount of charcoal into it, and then picked up the drill bow again, and pulled it up frantically-

"Hoo ——!"

"Hoo ——!"

"Hoo ——!"

......

Unconsciously.

The overcast sky was a little darker.

The wind is getting stronger.

The trees rustled in the wind.

Soon, more than half an hour, passed in a blink of an eye.

The newly added charcoal also began to turn from red to light.

Noticing this scene, Lu Yu put down the bow drill and observed the situation in the furnace with a probe.

At this moment, the charcoal ash below has already accumulated a thick layer.

Large and small slag, clearly visible.

"Brothers, it should be time to open the furnace. ”

"Find something hard first, and poke through the goal line to see-"

After happily reporting the results of the smelting to the audience, Lu Yu took the stone axe, aimed at the hard soil at the door line, and slashed it indiscriminately.

"Boom la la ——!"

Then, all I heard was a bang.

Countless debris and charcoal rolled down from the door open.

scattered all over the place.

Looked at.

Lu Yu picked up the clay pot and poured some water on it.

"Zizi ——!"

The next second.

The steaming white gas, wisps of rising, soon obscured everyone's sight.

Followed by.

After the residue was completely cooled, Lu Yu picked up the melting cup and leaned over to rummage in the ash for a long time.

As a result, it didn't take long.

Inside, I found a "golden bump" the size of a thumb cap with a yellowish surface.

"Hey, brothers, look what I've found—"

Facing the camera, Lu Yu raised the corners of his mouth and muttered.

And at this moment, the audience in front of the screen also saw this scene clearly!

"it!"

"Is this copper?"

“6666666666666！”

"Awesome!"

"This ...... Isn't it amazing?"

"Earth OL Supreme Player!"

"Is this the Bronze Age?!"

"Anchor, you're really invincible!"

"Oh my God, I'm moved!"

......

Looking at the barrage, Lu Yu smiled and said nothing.

It took a while before the drone was re-aimed at itself.

"How? It's hard to imagine, right?"

"Without the help of any modern tools, we were able to obtain precious copper. Ladies and gentlemen, this is the charm of primitive technology, and this is why human civilization has survived to this day...... I succeeded, really succeeded......"

Glancing at the drone.

Lu Yu was overjoyed, with tears in his eyes.

All the way.

All these things are really difficult for him.

Sixty days of extreme survival.

At this moment, a different kind of dawn was finally ushered in.

"These coppers are of epoch-making significance for my existential challenges. ”

"Remember what I said on the first day I landed on the island?"

"Today, brothers, they have been able to come true—"

Lu Yu's survival start, in addition to wisdom and hands.

Nothing else.

There was no food.

There is no water source.

No clothing.

There is no place to stay.

There is no direction.

Not even any vestiges of modern civilization.

But today, not only did he miraculously survive, but he also obtained precious metals and entered his own Bronze Age.

A grain of copper.

For modern civilization, it is not enough to worry about it.

Because it's so common!

But for an unarmed person, its meaning can be infinitely magnified, and it can even build a civilization with bare hands to compete with the sinister nature!

Copper's significant impact on the history of human civilization is unmatched by any material.

It was the first widely used metal.

The role is so great that there are two stages in the history of the development of human civilization, both of which are named after its alloy.

That is, the Bronze Age and the Sub-Bronze Age as we know it.

If humans hadn't discovered copper, modern life would be unimaginable.

From the fields of industry, daily necessities, architectural decoration and even art, they may be subject to various limitations, and even the entire civilization of the earth will go bankrupt!

"Copper is not only an ancient metal, but also a modern engineering material full of life and vitality. ”

"From the primitive era to today, mankind has thoroughly entered a rich and colorful, highly civilized society characterized by electrification and electronic information! However, copper, a metal, has not only not been eliminated, but has been more widely used, deeply penetrated into all aspects of production and life, and has become an indispensable and important metal for mankind to achieve rapid development in the 21 st century. ”

"With copper, while it doesn't guarantee that the rest of the day will be smooth, it will definitely help us a lot. ”

After carefully putting the copper grains into the cup, Lu Yu leaned over to look for them again.

After cooling, the golden copper grains are easily spotted.

It contrasts sharply with the color of the cinders.

At a glance, you can pick a rough idea.

Followed by.

According to the above method, Lu Yu took out all the carbon slag in the furnace.

And poured a large jar of cold water on it.

"Zizi ——!"

Soon.

When the white qi completely disappeared, he leaned over again to look for it.

After quenching, the copper is completely separated from the slag.

The colors are also a lot brighter.

There are almost no impurities.

Within five minutes, the molten cup in his hand was filled.

Against the backdrop of the firelight.

The brass in the cup, sparkling.

Loaded with metallic luster.

If you smelt all this copper, it should be more than enough to make an axe blade.

"Brothers, today is another day of great harvest. ”

"It's so rare. ”

"If nothing else, we will be able to rebuild this copper material tomorrow. ”

Looking up at the gray night sky, Lu Yu continued worriedly:

"Anyway, hopefully it won't rain tomorrow. ”

"Well, it's not too early. After a busy day's work, let's eat something first, then get a good night's sleep, and then move on to the rest of the work when we have enough energy. ”

The night was deep.

There is no starlight.

After placing the molten cup properly, Lu Yu went to the chicken coop to get a turkey egg.

Sit down by the fire.

While frying on a stone slab, he chatted with the audience.

It's nine o'clock at night.

After a simple meal, Lu Yu reluctantly turned off the live broadcast, and then went back to the house and fell asleep.

The next day.

Six o'clock in the morning.

Maybe it was yesterday's prayer that touched God.

Very lucky.

It didn't rain on the island.

But the weather situation is no longer optimistic.

The wind continued to blow for several days.

The coastline in the distance, choppy.

Lu Yu knew that his good life should not be a few days away.

The first big storm of 2020 may soon come as scheduled and sweep across the whole of Olidia.

In fact, as early as a few days ago, the Meteorological Bureau on the main island of Fiji had issued a red alert for Storm No. 1 this year.

The island's two major airports have been closed.

According to the predictions of relevant experts, it will be affected by a low-pressure cyclone.

within a week.

The first typhoon of the year is expected to send waves into the South Pacific.

The director team and the security team were very worried about Lu Yu's safety, so they contacted him early in the morning and asked him to prepare in advance, and the helicopter team was ready.

If the situation changes, please turn on GPS rescue as soon as possible.

Lu Yu readily agreed.

Say you can handle it.

But if something happens, I'll be sure to get in touch with them.

After finishing the microphone connection with the team members, the time came to 7 o'clock in the morning.

Seeing that the time is almost up.

Lu Yu immediately started the live broadcast.

Because of yesterday's foreshadowing, early this morning, the audience couldn't wait to stay in front of the screen.

"Hagami Zao!"

"I'm excited, I want to see the follow-up!"

"I've been waiting for a day, and it's finally here!"

"I really want to see how the anchor turned this pile of scrap copper into a copper axe!"

"Yesterday, Yushen was the first hot search on Weibo again! (laughing and crying)"

"How many times has this been the first place this year?"

"It's so showy!"

......

Tidy up your messy long hair.

Lu Yu said hello to the audience, and then went straight to the point

"Whew, see you again......"

"If I'm not mistaken, today is supposed to be the fifty-third day of my challenge. ”

"Yesterday, after some hard work, I managed to get not only charcoal, but also an ultra-practical metal - copper. ”

"And today, it's what everyone has been waiting for a long time - the creation of a copper axe!"