The Ultimate Live Superstar

Then, he randomly picked a piece.

He placed it on the stone slab that was used to make tiles.

He smashed it bit by bit with a stone axe.

This scene made everyone a little confused.

They had no idea what Lu Yu was doing.

Seeing this.

Lu Yu explained:

"The temperature of the earthen kiln is not high enough. If we throw a whole ore in, we can't separate the copper from the ore at all."

"The best way to solve this problem is to crush the ore first and then throw it into the kiln. In this way, as long as the temperature is high enough, we can get the original copper."

"Copper smelting is a big project. Even if it is trivial time, try not to waste it. So, while we have time now, smash these hard guys into ore powder first-"

He worked while talking.

Soon.

When the black field mouse came out of the furnace,

the ore in his hand was also smashed into soybean-sized ore powder by him with a stone axe.

These crushed ore powders.

are the raw materials for smelting.

After entering the kiln.

Can the ore powder separate copper?

It is a key step in determining whether smelting can be successful.

Because only by separating the copper material.

Can liquid copper be obtained through refining, and then it can be turned into the shape you want.

This is the general principle.

But these steps are easy to say, but not easy to do.

In order to make the copper axe hard enough.

There are many details that need to be paid attention to during the period.

Secondly.

The preliminary preparations must not be wrong.

Smashing the ore powder is only the first step.

In addition to the ore powder.

Charcoal and blower may take a whole day to work.

Put the smashed ore powder aside.

Lu Yu wiped his sweat and picked up the field mouse:

"If you want to get high-quality copper, ore powder is only one of them."

"Because this is only the first step of the Long March, there are still many preparations to be done, such as making charcoal kilns and firing blowers. The charcoal used for copper smelting is not the charcoal burned out in the campfire, but must be raw charcoal, which is the kind used in barbecue restaurants."

"So, fill your stomach first, you will have the strength to work after eating..."

Hungry all night.

Lu Yu could no longer resist the burnt aroma of roasted field mice.

He didn't hesitate.

He took a bite.

Because it was roasted long enough.

The rat meat was even a little crispy.

It tasted very crisp.

The sound was really good.

But as soon as he thought about it, he was holding a furry mouse.

The audience who usually envied and hated Lu Yu couldn't stand it.

"Ah... So disgusting!"

"You actually eat so deliciously!"

"Food Terminator, there are almost no animals on this island that can escape the clutches of the God of Feathers!"

"Is it really that delicious?"

"Actually, it tastes okay. I've eaten the farmed roasted field mice, and they're not bad!"

"Brother, where are you from?"

"Is this the long-lost PDD spell: Hu Jian roasted mouse?"

The taste of roasted field mice is really good.

But not everyone can accept this thing.

Lu Yu doesn't eat such strange things on weekdays.

After all, it's a matter of survival.

However.

Having said that,

If you can catch a field mouse when there is no food, never let it go.

This guy may look inconspicuous.

But it can save your life and provide you with at least 800 calories.

...

Soon.

It was eaten up in a gust of wind.

All the rat meat was swallowed.

After drinking a bowl of hot tea.

Lu Yu put the bamboo basket on his back again and said to the camera:

"Okay, brothers."

"There is no time to lose." Let's go to the river to get some clay first. As for why, you will know later. Let's go..."

Chapter 392 Charcoal kiln, air blowing system! (k, please subscribe

Chapter 392 Charcoal kiln, air blowing system! (4k, please subscribe!)

Carry the bamboo basket.

Come to the river.

Lu Yu quickly found the soil collection point when he built the earth kiln last time.

Because it rained a few days ago.

The soil layer is loose again.

In just a short while.

He got a full basket.

"Charcoal is needed for copper smelting. In addition to temperature, there is another important reason——"

After arranging the carrying straps, Lu Yu carried the bamboo basket full of clay on his back.

Stepped over the muddy clay layer in one go.

While walking, he said:

"That is, charcoal can be used as a reducing agent."

"It can reduce the copper in copper oxide very well."

"And this is the key to pyrometallurgy."

"This method has existed since ancient times. Even today, many professional smelters still choose high-quality charcoal when working. This is the reason."

"Charcoal is essential if you want to separate the copper from the ore powder."

"In this way, how to get better quality charcoal has become the first thing we should consider."

Speaking of this.

Lu Yu patted the bamboo basket behind him mysteriously and gestured to everyone:

"These clays can help us."

"With it, we can try to build a charcoal kiln that can be reused to burn charcoal. With a charcoal kiln, this problem will naturally be solved."

The primitive technologies that Lu Yu talked about were all unheard of by most people in front of the screen.

While curious.

Everyone was also confused and kept asking questions in the barrage.

Seeing the netizens were so enthusiastic.

Lu Yu smiled and explained:

"It may sound complicated, but it is actually very simple. Don't worry, it will be clear in a while."

...