Chapter 159

Ren 8000 sat in a daze on a chair. It was just a cool place, and the surrounding temperature was the same as that of fire.

According to the summer season, it is late autumn now, but the weather is still hot to death.

In the distance, there was a tinkling sound of digging in Damo mountain.

After burning the mountain yesterday, a hairline crack appeared on the mountain wall, which made Gu Qiong and Tao Jiyuan happy. They thought they had found a way to dig this Damo mountain.

However, Ren 8000 is not as optimistic as them. It is estimated that there should be no change in the surface.

Of course, this is also the different requirements of both sides. Ren 8000 wants to obtain iron ore that can build weapons equipped with an army of 20000 people.

Dayao's standard thick back long knife is not the kind of three or two kilograms of knives held by ordinary people. Each one weighs almost twenty kilograms, and the iron ore needed is at least twenty-two or three kilograms.

However, thousands of prisoners in Dama mountain can only mine 180 kilograms of iron ore a day. They can only make four knives. In two years, they can only make more than 2000. All of them are used in the army, which can still be said to be a drop in the bucket.

You should know that Dayao is not only a weapon needed by an army, including hunters in the mountains, but also those iron tools needed daily.

Although the other iron mine Liucui mountain didn't go, Ren 8000 asked Tao Jiyuan during a chat before. It was in the mountain, and the mountain road was difficult. Although mining is much easier, outward transportation is also a big problem.

In a country with a population of 30 to 40 million, the annual iron ore output is only 10000 or 20000 kg. What can we do?

"My Lord, my Lord, today's weighs at least four or five hundred kilograms, which is the amount mined in the past four or five days."

Ren 8000 didn't know when he fell asleep. In his sleep, he was awakened by the excited voice of Gu Qiong.

"Oh? Four or five hundred pounds?" Ren 8000 rubbed his eyes, burned it for a day, watered it, and mined it in another day, which was twice as fast.

"Then pull out more wood. It's best to mobilize some people in the surrounding cities to transport wood, and then burn the mountains separately. One day in the East and one day in the west, burn the mountains in turn. In this way, the efficiency will be improved." Ren 8000 stretched out and said. I wonder what the surrounding mountains will be like in a few years. After all, if you want to burn this iron mountain for mining, the wood consumed in a year is not a small number, but the growth of trees is a ten-year cycle.

Moreover, with the reduction of surrounding wood, if you want to maintain such mining speed in the future, you need to send wood from a distance, so the number of personnel will be greater. Let's go back and study the concave mirror.

"What Ren said is." Tao Jiyuan looked at Ren's efforts to double the iron ore production in one or two days, and I'm afraid it can increase three or four times according to his just words. He immediately admired it. "But I'm afraid it will take your Majesty's order."

"Go and have a look." Ren 8000 got up and asked Gu Qiong to lead the way to the foot of Damo mountain for self-study and observation. As expected, it was just a thin layer, and the length of half a finger was about three centimeters.

"Tao Langzhong, would you please give your majesty a discount and tell him what's going on here?" Ren 8000 turned around.

At dinner, Tao Jiyuan and Gu Qiong still had an excited look on their faces. Ren 8000 didn't disturb their enthusiasm. They just said, "I'll have a good rest tomorrow. Don't bother me about big things. There's no need to prepare meals for me."

"Yes, Lord Ren."

After greeting them, Ren 8000 went back to the house and returned to the earth when they were about to go to bed.

……

At this time, the earth is in the evening. Ren 8000 first turns on the computer to find the news he has seen. He just enters the key words and finds it quickly, and there is more than one.

Someone did such an experiment 70 years ago. The first 50 kW solar furnace made of liquid mirror can melt 1 cm of steel plate in 30 seconds.

A laboratory established 50 years ago, built with 10000 concave mirrors, can reach 1000 kWh and reach a high temperature of 3500 degrees at the target in an instant.

The melting point of iron only needs 1538 degrees, so it doesn't need to be so large at all, just a little smaller.

In an online video, a foreign brother can melt iron by installing 5800 nail sized small lenses on a satellite pot cover.

All these have proved that the idea before Ren 8000 is feasible.

It doesn't need to be as large as a foreign laboratory. As long as it is one tenth of the size, it can even be divided into ten parts. After all, it's just to melt the Damo mountain wall. There are no high requirements for accuracy in all aspects. As long as the focus is in a range and the temperature in the range is enough.

That night, Ren 8000 contacted a physics professor at a university in the city through Chen Qing. He met the next day and told him his requirements. He needed a concave mirror to make a movable and adjustable angle solar furnace that could melt steel three or four hundred meters away.

The other party needs to provide him with a solar furnace that can be carried by a single person, as well as a series of plans for the mold for making concave mirrors in Dayao and the installation angles of all concave mirrors in the future.

It's troublesome for Ren 8000, but it's very simple for the other party. After all, Ren 8000 doesn't have high requirements for accuracy in all aspects. He can even throw it to students, and the reward is 500000.

After settling the matter, Ren 8000 returned to Dayao after two days' rest.

……

Liucui mountain is actually on the periphery of 60000 mountains on the west side of Dayao. However, it takes two days of mountain road to reach the location of iron ore, and the mountain road is difficult, which is the biggest difficulty in the outward transportation of iron ore.

A few days after leaving Dama mountain, Ren 8000 walked on this mountain road.

When I first entered the mountain, it was OK. The mountain road was easy to walk. After all, this road is often passed.

However, one day later, the mountain road began to winding and difficult to walk. There were mountain walls on one side and mountain streams on the other, and there was only a one meter wide road in the middle.

Although people can walk, they can't ride.

Even if people can walk, the speed can't get up.

At least eight thousand people feel dizzy every time they look down the cliff next to them.

You know, there are two or three hundred meters below. If you fall down, it will directly become a meat pie.

Ren 8000 suddenly found that he had a great weakness and was afraid of heights.

I haven't found it before.

Seeing him like this, Tengji was also worried. He closely followed him and was ready to pull him at any time.

If something happens to this, you don't have to go back.

After walking along this road for a long time, he finally came to a valley with cliffs on three sides. Ren 8000 finally put his heart down and felt that he had lived again.

The valley is not too big. In addition to more than 100 guards, there are seven or eight hundred people mining here.

The iron content of liucuishan ore is about 50%, so it is much less difficult to mine. It is only because it is very difficult to transport ore out or materials in here, so it is difficult to expand the scale.