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Chapter 2031 Electricity and Magnetism

Although the steam engine cannot be poured out. But the development of science and technology has many directions. In theory, it is also possible to directly use an internal combustion engine. After all, the difficulty of metal processing in this world is very low. When the original normal history line could not be directly connected to the internal combustion engine, accuracy issues were taken into consideration.

And if it were a steam engine in front of us, its accuracy would be more than enough. It is also possible to directly use internal combustion engines, but compared with these technological changes, the biggest change facing mankind in this world is actually the change in social structure.

Originally, human tribes were isolated from each other. It is not an exaggeration to say that he is dying of old age and does not want to interact with him. The distance is really too far, and it is simply difficult to reach each other. Not only that, the outside is freezing cold, and the ice and snow are not easily crossed. Some people have tried to enter other underground caves through the passages from the outside. The vast majority of people froze to death, except for a few individuals who had mastered some extraordinary power. Only then could he reach other tribes in a narrow escape by carrying a large amount of equipment.

But with the continuous development of technology, people have smelted steel that can survive in high temperatures. They can use cars to carry large amounts of magma to keep them warm. They can wear warm clothes and walk in the ice and snow. They can even carry large amounts of Liquid water travels through freezing regions.

The connections between caves are becoming ever closer. As the connection became closer, some people began to try to measure the distance between the two caves through the mathematical knowledge they learned.

There are a lot of underground spaces on this planet. Sometimes you don't need to go above the surface to enter another cave. There are some quite rugged, maze-like roads between caves. It is also possible to connect to each other.

It's just that these roads are often difficult to explore, and when they are explored, they are quite steep and difficult to pass.

But this means that the straight-line distance between different caves may not be as far apart as imagined. Now that we know this, if we open a straight road between caves, is it possible to go underground to other caves?

Tribes that had not yet developed industrial capabilities accepted trade but did not yet consider these things. But the technology of the tribe that the travelers arrived has reached a bottleneck. Today's population has made it difficult to continue to develop the technology, and the small caves made it impossible for the population of the tribe to continue to increase, so they began to try to build an epic level engineering. That is to connect one's own cave to other people's caves by digging tunnels underground. According to their estimation, although the nearest cave to them is tens of kilometers away from the surface, the straight-line distance underground may be only one or two kilometers. At this level, it may be possible to dig through it directly.

In this world, there is no shortage of resources such as steel. Especially when a large amount of magma pours into the surface, there are very many metal ores.

Even the magma itself contains a large amount of molten iron.

Therefore, during the tunnel excavation process, metal was used directly and luxuriously as the support structure of the tunnel.

Normally, the support structures of early mines were made of wood, but that was because in those worlds, wood was a more readily available and easier-to-work material than steel. In the world before us, it's just the opposite.

In an underwater processing plant, a person holds a metal hose in his mouth, which is a straw-like structure. His whole body is immersed in water, and the other end of the straw is connected to the outside air. Allow them to breathe freely underwater, and then perform various processing on metal in the underwater environment.

The efficiency of metal processed in this way is very high. And it can process quite large metal parts.

In this way, it is completely sufficient as a supporting structure for the tunnel. This big project was originally planned by the leaders of this tribe to spend their entire lives implementing it. But the entire project progressed much faster than he imagined.

Metal tools can be distributed to everyone, and the earth and rocks excavated from the tunnel can be quickly transported out by carts or even rail cars.

As a result, the tunnel excavation speed was much faster than he imagined. It only took about two years to successfully dig this long tunnel, with an average of only three or four meters dug per day. In their calculations, the direction was relatively accurate, and they successfully connected to another tunnel. Their luck was also relatively good, and they did not encounter other lava rivers along the way.

When digging this tunnel, the tribal chief actually considered that he might dig through another underground river, causing the entire excavation team to be wiped out. But he still made up his mind to carry out this excavation. The price was bearable, even though there was a risk of annihilation of the entire army, or even the risk of sacrificing his current survival territory. But there are also opportunities within danger.

And this danger can be avoided. The human body is very sensitive to the temperature of this world. Therefore, when approaching the magma river, you can feel that the surrounding icy environment suddenly becomes extremely hot. This is okay. Try to make a detour to the side and refill the area that was dug into the hot area with a lot of construction debris.

The building materials in this world are not reinforced concrete. It uses boulders directly and pours metal between the boulders. As long as the smelted metal is soaked in hot water, the metal liquid can be easily obtained, which is glued between the gaps in the rocks like cement.

That structure is much stronger than concrete. Even a rock structure cannot withstand the pressure of the magma river and will eventually be blocked by such a structure.

Fortunately, there was no such lava river flowing between the two caves, allowing them to successfully dig out the tunnel.

And with only two kilometers, such a short distance, the two caves are basically equivalent to merging after they are connected together.

There was a little conflict between the chiefs of the tribe. But no war broke out. Traveler tribe here. Because the strength was too great, the soldiers surrounded the royal family of another tribe, and after killing their king, they supported another surname and naturally took over the cave. The population also swelled to nearly two thousand.

It's just that the news of the merger of the two caves was kept secret by them. The people in the Traveler Cave knew that they did not have an absolute advantage in strength. It also takes enough time to make money and develop. When the chiefs of other caves did not know that they had the ability to invade, they continued to trade, and then annexed one cave after another without anyone noticing, until they grew into a nation that completely crushed other caves. After existing, he ordered other caves to surrender to him.

At that time, even if you don’t want to surrender, you must surrender. After all, they are in an absolutely overwhelming position in terms of population, transportation, productivity, etc.

Although the chiefs did not have these complex concepts, they knew how to choose based on instinct. Cheng Ying has rarely appeared in person in this process. It only provides certain on-demand broadcasts and reminders when they encounter technical difficulties. Moreover, these reminders are subtle, and many of them will be regarded as their own inspiration.

Now in the process of continuous expansion, the Traveler Tribe can already be called the Traveler Kingdom.

After ten years of expansion. A tribe of travelers with an increasing population and increasingly strong engineering capabilities. Already mastered the surroundings. There are a total of eighteen caves, and the farthest cave from the main base is a full fifteen kilometers away. Even so, they successfully opened an underground tunnel and established contact with each other after bypassing a magma river.

At the same time, tracks were also built between different caves, creating a railway network.

The railway did not come into being after the locomotive. The history of rail transportation is older than trains. If it were on earth, there would have been rail transportation before trains appeared. It's just that at that time, horses and other things were mostly used to pull the cart. There were no big livestock for people to use in this era, but even if human power was used to pull the cart, it would be much lighter if there were tracks. With the presence of traffic, the current scale of existence is enough to call itself a kingdom. The population has also expanded to 10,000 people.

This is an inconspicuous number for the human race that can live on the vast surface of the earth, but for the humans who can only survive in underground caves, it is already a miraculous kingdom.

When the population is large enough, the progress of underwater industrial development also begins to increase significantly, and a small number of people begin to contract production on farmland.

Although automated machinery has not yet been born, a large number of metal tools have made it much easier to cultivate farmland, and the difficulty of planting some crops in this world has also been greatly reduced. More people can engage in handicrafts besides agriculture. and industry.

The pools used to smelt metal and make various equipment were made larger and larger.

The largest pool before this series of conquests. The height is about three meters, the longest length is thirty meters, and the width is about five meters.

Make it into a long strip. It is to produce rails, and enough material can be produced at one time. But for some large machines, the production space of this scale is still too small.

Now there is a large enough population. The water plant used for steel production has become larger and larger. Now the largest area has reached five hectares. Although the depth has not increased much, the amount of water it holds is already very large. The internal water used It is the magma that heats the water, and the entire platform is suspended in the magma river. This means that there is always magma heating the water, ensuring that the water will not solidify due to the lowering of the outside temperature. It also ensures that people working in the water have a relatively comfortable working environment.

As for how to adjust the water temperature, it relies on ice brought from the outside world. Every industrial worker must be skilled in using these ice cubes to control the temperature around them.

People have figured out that metals have different properties at different temperatures. It is not that the higher the temperature, the better. Therefore, sometimes it is necessary to isolate a space in the water and specifically add ice cubes to this space. The temperature is lowered, allowing the metal to remain in a slightly harder state and processed in this state.

As for those that require a lower temperature environment for processing. The only way is to use normal methods to create high temperatures for processing in the outside world. If it develops normally, if you want to develop to this point, you want to rely on artificial high temperatures to smelt and forge metals. It would take at least hundreds of thousands of people to build a town to do it, but now, the output of steel is already very high. And can be easily processed into any shape. The difficulty of building such an industry is greatly reduced.

And now that there are enough unemployed people, technology is also constantly developing. After travelers came to the cave and brought advanced technology, the people in the cave realized the importance of technology. It can change the life that has remained unchanged for hundreds of years and allow a primitive tribe to develop by leaps and bounds.

So any technology discovers any observation and summary of natural phenomena. will receive great attention. And they found that the heated metal will produce attraction and repulsion forces after it is left for a period of time. And this attraction and repulsion force is related to the direction of these metals. I was immediately interested.

In fact, this phenomenon is caused by the heated metal being magnetized by the planet. Has weak magnetism.

The interior of the planet they were on was also an iron box, so it also had magnetic poles, which meant that a compass could be used here, and the heated metal could also be magnetized to a certain extent.

But the magnetic force obtained in this way is very weak. They have not mined natural magnets in nature, but this natural phenomenon has led them to conduct many experiments. With someone's secret encouragement, someone discovered electricity in the process.

If in a traditional social environment, in human society that has developed for countless years, the existence of electricity is suddenly discovered. Many may scoff at this sleight of hand. Think this is useless stuff.

But in an era just changed by advanced technology, this discovery aroused everyone's interest and received a lot of investment.

People think that these magnetic metals have great potential for development. If they become more powerful, they can theoretically be used as very convenient tools to be adsorbed on metals in the future.

The electricity that can be generated through these metals makes people here instinctively feel that there must be some connection between electricity and magnetism. Maybe you can rely on the shop to make metal with stronger magnetism.

It is because of such a deviation that the world's research and development of electricity began.

[To be continued]

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