After breakfast the next day, Chen Chao asked Qu to lead the way to see the mountain where the stone was found yesterday, and brought various tools to make it before leaving.

Li Nong, on the other hand, stayed in the cave and took Zhi Hezhong from the original unicycle production department to start making a new wind-powered unicycle.

After going around the mountain again and again, he really found an outcrop of the ore body on the surface for Chen Chao, and it seems that the open-pit mining of the shallow ore body is a drama.

Chen Chao took a look and was not sure if this was a copper-tin symbiotic mine. Although Xiaodian's classmate did not mark it carefully in the map he gave him, he still scattered a dozen people, led by Caojia, to look around to see if there were any malachite.

(Note: Some natural copper mines will have malachite and azurite, accompanied by cassiterite.) [This is called copper-tin symbiotic mine, and it is often accompanied by silver, natural copper. 】）

However, it is a pity that a certain system boss has not obtained the full opening of Tonglu Mountain, and even the sixty opening of the copper-tin symbiosis mine has also been obtained. ）

The one that Qu and the mushroom girl showed affection for earlier was indeed malachite, but Chen Chao did not find tin in the excavation place, and it may be that the excavation method was wrong.

After all, now there is only the ability to dig shallow on the surface~~

Without digging deeper, everything is hard to say~~

After hastily eating lunch, Chen Chao took the nearly 100 people and began to dig.

Although the little old man with the horns was very puzzled, he still took his big follower, Brown Witch, to do the logistics for everyone.

He planned to wait for the evening to go back and find another opportunity to ask Chen Chao why he didn't go back to the tribe quickly, but took everyone here to dig stones.

Chen Chao raised his hand and hammered his old waist, then turned his head to look at the small pile of stones on the ground, and shed tears of emotion.

Isn't it said that the protagonist can mine alone?

Why can't there be a miracle with great strength~~

Why do you have to do it a little bit when you come to your side~~

Aren't you the protagonist......

(♯｀∧´)

The lord of the world is not the protagonist, who else is the protagonist!

In this case, why did a team of nearly 100 people dig for an afternoon, and only have this little result...

At this moment, a certain system boss suddenly misses what explosives (sensitive word)...

Thinking of this, Chen Chao felt as if his brain was just an ornament.

I can't come to explosives (sensitive words) now, but I can still use the fire to boil water and splash stones to crack the method!

It should work out!

Chen Chao raised his hand and pinched his eyebrows, this is the end of doing things without brains, making nearly 100 people do useless work for an afternoon.

Just looking up at the sky, Chen Chao sighed, it was too late.

By the time I remembered that there was a shortcut to copy, it was getting dark.

A certain system boss felt very helpless, so he had to wave his hand and let everyone call it a day and go back to the cave.

(Note: Fire boiling water splashing method: It is to use the principle of thermal expansion and cold contraction of rocks, and then quickly pour water after the fire, so that the rocks will be crispy and cracked, and even become like cutting tofu.)

The construction of piles and tunnels are all creative labor of human beings to conquer the rocks of nature and tame them to the subjective will of human beings.

The same time-honored human mining activity is also a creative labor of conquering rock-ore, and before it was used in blasting, miners used the primitive mining method of "fire and water shock" to obtain ore.

There are many interesting explanations about this, interested students can search for Baidu keywords on their own~~

You can also add book friends - group I send the network - address, discuss the plot to urge more chatting and idle talk, the group number is in the comment area~~)

(Note: Regarding the mining method of copper ore: in addition to the fire water pouring method, you can also directly burn the copper ore with fire, and part of the stone can be turned into natural copper.) ）

After returning to the cave with the pitiful stone he had just dug, Chen Chao went to see the progress of the unicycle making team.

Three journeymen, today made a half-wheelbarrow out.

Seeing this, Chen Chao sighed softly, let's let Qu return to the team tomorrow.

Add one more person, and progress can at least be faster. It is estimated that after the fire and water and stone cracking method will be used tomorrow, the speed of mining will be much faster.

As for the production of wind-powered unicycles, Chen Chao is not at ease to let others take over, or add new people to come in to learn.

If you want to add people, at least wait until all these people are brought back to the tribe, and then arrange their specific types of work.

After coming back, I took everyone to dinner, and when Chen Chao was about to fall asleep, a little old man who had been waiting next to him raised his hand and poked him, signaling us to go outside and talk.

Chen Chao looked at the little old man with the horns on his face solemnly, so he had to be sleepy and accompanied him to the outside of the cave to blow the cold wind.

Rao is cold winter wind blowing on his face, which only made Chen Chao feel that the sleepy insect was a little farther away.

While he was dozing, he heard a little old man ask, "Why don't we go back and dig up rocks here?" ”

Chen Chao thought about it, so he must now convince the little old man to give him an example of all kinds of good things that can be made out of bronze, so that he can continue to go back to sleep?

So a certain system boss shook his head, sorted out his thoughts, and said, "Is our stone axe sharp?" ”

The little old man with the horns nodded and shook his head again.

To be honest, in his opinion, the stone axe doesn't seem to be sharp enough, but at the moment, he doesn't seem to see anything sharper than the stone axe.

Oh...... Ceramic shards will be sharp, but ceramic shards are not good for gripping.

So for Chen Chao's question, he didn't know how to answer.

Chen Chao didn't rush to say the answer immediately, but asked again, "Is our clay pot easy to use?" ”

He will answer this question!

So a little old man with a sheep's horn nodded frantically~~

Chen Chao asked again, "Is our wind-powered unicycle easy to use?" ”

A little old man with a sheep's horn turned into an emotionless nodding robot~~

"Then when we make a wind-powered unicycle, where is the most difficult to get it?" Chen Chao asked again.

The little old man with the horns thought for a moment and replied tentatively, "Wood? ”

Chen Chao nodded.

It's no wonder that the little old man's brain melon suddenly went online, because this question was asked stupidly by Chen Chao.

Is the whole wind-powered unicycle all made of wood?

"Now with this stone, we can make knives that are better to use and sharper than stone axes.

With this stone, we can also make a better wok than a clay pot.

Not only that, but there is one such stone. We can also make a saw tool that can process wood faster, so that we can process wood faster and better in the future. ”

It's not that Chen Chao doesn't want to tell a certain little old man more uses of bronze, but he doesn't understand it now that he says it.

Because he had never seen it at all, and there was no way to understand what Chen Chao was describing.

For example, the last example of a saw, the little old man knew nothing about it.

So Chen Chao gave more examples, such as bronze can make cannons, gun barrels, parts for two-wheeled vehicles, and so on...

It's useless, because the little old man really doesn't understand...

It is enough to have these most practical things, the ones that are most common and commonly used in his life.