Fight,Primitive Man

As soon as Yang came back with the hunting team, he heard that Chu Dong had nearly a thousand new soldiers' attack angle to wipe out the boar.

Yang Wenyan was overjoyed and went directly to the cave in the east of Chu.

"Chu, it's said that you have defeated 1000 poachers, including a golden horn and a silver horn. You are such a bull..."

Just go in, Yang was stopped by chance.

"Yang, keep your voice down. Chieftain is doing an experiment."

"Experiment again? What good thing did you think of this time? "

Every time we do experiments, Chudong can bring new changes to Panshi tribe, which has almost become a law.

People in the tribe, including Yang, would consciously create a quiet environment for Chudong when they heard that Chudong was going to do the experiment again.

Yang quietly poked his head and saw that Chu Dong was putting a withered straw in a pile of white things. Then he picked a burning branch from the nearby campfire and lit the withered straw with the fire.

As a result, a fire came out of the withered straw.

After burning for a period of time, the withered grass stalks burn away, and the flame goes out.

Chu Dong changed a piece of grass, inserted it into the lard, and lit the fire again.

This time, the straw burned for a long time, but it finally went out.

Chu Dong scratched his head and didn't know what was wrong.

He had already found this kind of Cordyceps, which can replace the Cordyceps, but according to the book, Cordyceps should be able to burn for a long time until the lard is burned.

But now, the grass is gone, and there is still so much lard.

There must be something wrong.

Yang outside the cave saw that Chu Dong had been thinking. After thinking about it, he didn't disturb him, so he went to the pig farm to see how the pig farm Chu Dong got.

"Chieftain, have a rest."

Qiao handed a bowl of water to Chu Dong.

"Well."

Chudong carelessly took over the water and said to himself.

"How can we make the pistil more flame-resistant?"

"Chieftain, sometimes when we go out at night, we light torches. Torches are usually made of pine oil wood, because pine oil wood is very fire-resistant. Why don't we try pine oil wood?"

Chu Dong's eyes brightened when he heard what Qiao said.

"Yes. You're right. Pine oil wood itself can produce oil through high temperature, and oil can support combustion. Of course, pine oil wood burns for a long time. If pistil also has the characteristics of pine, it will burn for a long time

"Coincidentally, you are so clever."

Chu Dong pats Qiao's head and praises happily.

If Chu Dong didn't know that the women in the tribe were very casual about the relationship between men and women, he really wanted to embrace Qiao to express his excitement.

But I don't know why. She didn't feel that she had any important idea. She just looked at Chu Dong's thinking and said that casually.

After Chu Dong had a thought in his mind, he pulled over a few sun dried stems of pistil grass, found the uncooked lard, and soaked the stems of pistil grass in lard.

As the grass itself is hollow, so slowly the lard oil penetrated into the grass stem.

Originally, the dried and easily broken pistil grass became more flexible. Until it was hard to break, Chu Dong carefully stuffed the soaked pistil grass into the lard.

This time, try to light it again. The flame is not very big, but it can burn all the time.

"Yes! The oil lamp was invented successfully. "

Chu Dong held up the stone plate. There were lard blocks on the stone plate. In the middle of the lard blocks was a group of pistil grass. It was ugly, and it smelled pungent, but it was an oil lamp.

Before the electric lamp, thousands of years of civilization, people spent their nights relying on oil lamps.

With the oil lamp, after the night comes, the barbarians can do things other than the routine. For example, they can weave straw sandals, make leather clothes, and polish bone artifacts under the oil lamp

In other words, in addition to the daytime, the night can still increase the tribe's various material reserves, which is the direct benefit of the oil lamp.

Looking at Chu Dong holding lard stone plate silly laugh, Qiao some in a daze.

"What happened to the chieftain?"

When I heard the words, I turned back and saw the moon come in.

"I don't know. It's about studying something, and then that's what happened. "

"Don't you know the temperament of the chieftain? Once you succeed in researching something, you will be very excited. I've seen this state before. He was very happy when he developed alcohol. "

Chu Dong happy for a long time, saw the month also came, slightly a little embarrassed, however, this kind of embarrassment immediately did not have."Yue, you're back, too? Look what I invented? Oil lamp, you know? In the future, our tribe can light oil lamps at night and do anything in the daytime at night. This is a breakthrough invention. "

However, Chu Dongru's display of treasures did not get the support of Yue and Qiao.

Yue and Qiao, of course, don't know the function of the oil lamp. They are used to doing whatever they should do when the night comes. It seems that whether there is an oil lamp or not will not change.

Perfunctory two excited Chu East, month and Qiao talked about this time of hunting wasteland.

Chu Dong feels a little embarrassed, but then, hearing Yue's story, his eyes are bright.

"You mean you found a lot of metal balls excreted by gold Gobblers from an abandoned monster nest?"

"Yes. This time, Yang specially took us to the depth of the wasteland to find the whereabouts of the big gold swallowing beast. It's a pity that I didn't see the big gold swallowing beast, but I found an old gold swallowing beast nest with many metal balls. The biggest can be this big. "

Month with a fist stroke, about the size of two fists.

How much does such a big metal ball weigh?

"How many are this big?"

"I didn't count them carefully, but there are hundreds."

Chudong knew that the barbarians were not good at mathematics. There were few people in the whole tribe who could count the numbers from one to one thousand, and it was very impatient to find hundreds of them. Therefore, they often used hundreds of such units of measurement.

They said hundreds, maybe thousands, maybe less than 200, all possible.

"Great. Yang is really capable. What about Yang? Why didn't you see him? "

"He came here just now and saw that you were studying things, so he left. He said he was going to the new pig farm."

Chu Dong nodded, put the first oil lamp, and walked toward the pig farm.

Before I got to the pig farm, I met Xia head-on.