A Sturdy Life Begins From Surviving on a Deserted Island

What's the problem?"

Liu Kun's brows furrowed tightly upon hearing this.

In the beginning, he once asked about magnetite.

However, Ma Decao said there was no problem.

So Liu Kun didn't ask any more questions, and wanted to wait until the copper wire was finished before talking about the magnet.

As a result, I didn't expect that Mad Grass actually said that there is some problem with the magnetite.

This made Liu Kun feel a little dissatisfied.

"Uh......"

Ma Decao looked at Liu Kun's slightly cold eyes, and suddenly shivered in his heart.

Then quickly explain.

"Boss~

It's not a big problem, just a few small problems.

That place is under the sea, I thought, maybe I need to prepare something~"

"seabed!?"

Everyone was stunned when they heard the words, and then exclaimed.

However, Liu Kun was not surprised.

"It's no big deal if it's just under the sea."

"Yeah yeah~"

Mad grass quickly flattered.

"I felt absolutely fine at first.

That's why I said that.

However, now I think about it, why do I need to get a breathing pipe, so that I can dig in the seabed.

Otherwise, it won't last long before there's no oxygen to swim up to breathe."

"That's a small problem."

Liu Kun nodded when he heard the words, and his eyes became gentle again.

"How deep is it?"

"It's estimated to be 10 meters deep?"

Madecao thought for a moment, then said slowly: "I wanted to fish at sea back then.

Accidentally dropped his hatchet into the sea.

I dived down to pick up my hatchet, only to find that the hatchet was caught by the rocks on the bottom of the sea.

Only then did I know that there was a magnet in the next interview."

"That's nothing."

Liu Kun heard the words and nodded.

The sea is only ten meters deep, so this is nothing.

You don't even need a breathing apparatus.

He held his breath and then digged a few times to come out to take a breath, and then go down and dig for a while.

Although it is a little more troublesome, it is much easier than making a 10-meter-long pipeline.

"Okay, let's go after you eat."

"Yes~"

......

After dinner, Liu Kun brought three boys to the brick kiln room.

The pottery mold made yesterday is completely dry.

This made Liu Kun have to sigh that the tropics still have some benefits.

Put those pottery molds in a pottery, put them in a kiln and start firing.

Because the pottery mold is very small this time, it does not need to be fired for too long.

After a few people filled up the firewood, they stopped worrying about it.

Then came to the blast furnace and began to smelt copper.

Generally speaking, only blast furnaces make iron, and few blast furnaces make copper.

This is mainly because of the high melting point of iron, and most of the iron ore is iron oxide.

In order to reduce iron oxide to iron, it is necessary to replace the oxygen in iron oxide with carbon monoxide under high temperature conditions.

Thus there is iron.

The role of the blast furnace, one is to increase the temperature, and the other is to generate carbon monoxide.

The reason why there is less copper smelting in blast furnaces is that copper smelting does not require such a high temperature.

And the blast furnace is more troublesome, so there is no need to do this at all.

Secondly, copper ore, most of which are chalcopyrite, that is, CuFeS2, can be directly reduced as long as it is in a high temperature environment.

No need to use carbon monoxide to reduce it at all.

However, in order to extract purer copper, Liu Kun built a special blast furnace.

Moreover, if you need to make iron in the future, you can also use this kind of blast furnace.

So, he built such a blast furnace.

"Okay, let's start~"

Liu Kun directed the crowd to put copper mines and charcoal.

The method of smelting copper is very simple.

Basically, they don't need to be taught, they learn quickly.

"Boss, the copper produced by this blast furnace should be very pure, right?"

Liu Deli was sweating profusely, but he was still in high spirits.

He felt a surge of excitement at the thought that the electricity was about to be turned on.

"It's alright~"

Liu Kun nodded, "This method produces blister copper.

But for the time being, it can only be used for the time being.”

"Bronze?!"

The three were stunned.

"No way?!

Why is it still blister copper at such a high temperature?"

"No reason.

Because some impurities in copper cannot be removed by high temperature.

Pure copper needs to be produced by electrolysis.”

"Uh......"

The crowd fell silent for a while.

Apparently none of this was thought of.

In other words, their original chemistry knowledge has been returned to the chemistry teacher.

"what?"

Mad Cao suddenly frowned, "Boss, I suddenly thought of a question.

You said that pure copper needs to be electrolytically produced.

To generate electricity, pure copper is needed.

So how did the first piece of pure copper come out?"

"Of course it's electrolyzed."

Liu Kun rolled his eyes, "Although blister copper is called blister copper, the copper content is over 95%.

Like us, the copper content may have reached 99%.

Although there are some impurities, power generation is still possible.

However, for some slightly larger and slightly more precise things, it cannot be done.

With the copper we got, there is no problem in generating electricity."

"Boss~"

Liu Deli asked curiously, "How does electrolysis work?"

"Have you learned chemistry for nothing?"

Liu Kun rolled his eyes, "The anode is rough, the cathode is pure copper, and the electrolyte solution is copper sulfate.

As soon as the electricity is turned on, zizizizi...

Then pure copper came out~

Never ask how the first piece of pure copper came out.

Because the cathode can hold other inert metals, so pure copper will adhere to these metals.

Finally, scrape off the pure copper, or heat it, and use the principle of different melting points of metals to melt the pure copper.

All right, get to work!"

......

"666666"

"Islander is amazing!

My chemistry knowledge has already been returned to the teacher!

I never thought that you can also learn chemistry by watching the live broadcast!"

"I'm sure the island owner must have been a chemistry class representative!"

"Don't make trouble, I think the island owner must be the representative of the physics class!"

"Stop it!

Look at the other skills of the island owner, I am sure that he must be a member of the study committee!

The first one in every grade!"

"As far as I know, veterinary medicine, that is, animal medicine, does not have very high scores in admissions.

Generally speaking, it is enough to press a line.

So the question is, why did the island owner with such good grades go to study veterinary medicine?"

......

There was a moment of silence in the live room.

Then it became even more lively.

"Topic terminator!"

"The problem upstairs is unsolved!"

"Maybe I like veterinarians..."

"No solution, no solution!"

......

While discussing this issue in the live room.

Before the blast furnace, Liu Deli also asked the same question.

"Boss, I actually have a question to ask...

I feel your grades are so good, why did you choose veterinary medicine?

I'm not saying that this major is not good, I'm saying that this major has relatively low admission scores..."

"No, this major is really bad, and I don't like it either."

"Eh? Why is that?"