Douluo See You For a Long Time

The purpose of studying electromagnetic force in this world is different from that in the normal world. There is a surplus of metal materials here, so that through the study of electromagnetic force, we want to find a method that can easily stick to metal, and then can I only study things that can be easily removed and used repeatedly.

This kind of thing can play a very important role in daily life and industrial production. Things as small as the replacement of screwdriver bits and as large as the lifting of some cranes may use magnets and the like.

What these people think about is how to control the magnetic force of magnets so that the magnets sometimes have magnetic force and sometimes do not have magnetic force, so that they can stand tightly together when they need to be adhered, and can be easily disassembled when not needed. .

In this way, magnets can exert a very good effect. When adsorbed behind a target, they become a very good building material. At least this is what people in this world expect from magnets.

However, as they gradually studied the relationship between electricity and magnetism, they gradually discovered it. In fact, it is easy to find the correlation as long as you invest energy in researching this aspect. Although people in this world cannot create a stable current, they already have a certain understanding of electricity.

After having a preliminary understanding of electricity, they found that their method of producing electric current was very primitive, but it revealed a simple scientific research spirit that made people feel overwhelmed.

The place where people are most likely to come into contact with electricity is actually static electricity. When clothes rub against the body surface, or when cloth rubs against some smooth materials, static electricity will be generated. And they will find that static electricity is more likely to occur when they come into contact with metal. trigger.

After understanding this, many problems can be easily solved. For example, the problem of static electricity, you only need to prepare a large amount of static electricity materials, and then place them on both sides of the conductor. Then you can put these into the glasses store The material is fixed on a wheel, and the name is rotated, and the material is contacted with the wire in turn, so that a relatively stable current can be formed in the wire.

It can be said that the scientific thinking of people in this world is quite simple. Just use your own limited conditions to achieve the experimental environment you want. This method of generating electricity can be said to be extremely impractical, but it allowed them to bypass many technical problems. In the early stages of the experiment, a relatively stable current was created, and in this current, they also discovered that the conductor after being energized would produce a certain degree of magnetism. Although it was very weak, they were thinking about how to enhance this magnetism.

Someone's idea was to stack more conductors on top of each other. This method has a certain effect, but it is not particularly obvious. After discovering that superimposing more conductors together has a certain effect, some people gradually tried and discovered that if the conductors are made into a spiral shape, then The magnetism he displayed would be greatly enhanced, and in this case, if they wanted to continue to enhance the magnetism, they quickly found a way.

That is, inserting a magnet into this cylinder can make the magnetic force stronger. Later, through experiments, they discovered that it was not necessary to insert these ordinary steels to have the same effect.

After I discovered this special effect, they wanted to make electromagnets, and their wish came true. But after getting the electromagnet, they were not satisfied.

Because things like electromagnets can only maintain their magnetism when they are charged.

In this era, electricity is difficult to obtain. The cost of relying on static electricity to maintain a stable current is so high that it makes people's mentality explode. These people are not a long-term solution. And since they can create electric current, electric current can produce magnetism. Then some people are thinking about whether magnetism can also produce electric current. Now that they have considerable demand for electricity, some people have begun to try to use magnetism to create electric current.

But it was the metal smelting department that contributed to the results, and the experimental results they obtained were also due to an accident. It was not that they wanted to deliberately create an electric current, but that they accidentally created an electric current during the experiment, and learned that After realizing that another department needed a stable current, he shared his information with the other department.

This is actually what happened. A relatively active metal extracted during their experiments can be directly ignited. If left in the air for a long time, it will rust much faster than steel. .

This material is not very strong and is not suitable for direct use as a building material. However, the curious humans of this era preserved this metal and conducted various tests.

In an accidental test, the metal and copper were placed in a container filled with liquid, and someone discovered that a weak electric current was generated between the two metal rods.

Moreover, this current is more stable and longer-lasting than the previous static electricity. Over there, the project of studying electronic induction and using magnetism to generate electricity has not been successful, but the battery here has been further developed. In fact, they have developed The batteries that came out were quite inefficient, far less practical than lead-acid batteries, but the technology was improved step by step. After they discovered the role of batteries, they became more convenient for making magnetic devices. Hands on.

In fact, they had already discovered it in previous experiments. If the metal is placed in the middle of the coil for a long time, it will act as an amplification device for the electromagnet for a long time. Over time, it will have magnetic force itself.

Therefore, some of them came up with the conjecture that everyone lives in a huge magnetic environment, so the heated metals will acquire extremely weak magnetic forces in such an environment.

If this is the case, what will be the effect of heating the metal and then placing it in a relatively stronger magnetic field created by an electromagnet?

This is easy to think of, and after they tried it, they found that they had obtained a magnet with stronger magnetic force, and it was something that could be attached to steel without being energized. The magnetic force was already quite strong and could stick to steel. On top of the steel, although they can still be pulled down directly with human hands, it is enough to fix some small objects.

After the technology has progressed to this point, the basic goals of the relevant project teams have been completed, but they have not stopped yet, but are in contact with the steel smelting department. Because they found that not all metals can obtain magnetism in this way, basically only steel has this effect. Steel is divided into different situations, and alloys with different ratios obtain different magnetic forces under the same conditions.

Therefore, they believe that different alloy ratios will affect the quality of the manufactured magnets.

If the ratio of the alloy can be adjusted, theoretically they should be able to create a magnet with stronger magnetic force. The fact is as they guessed, by constantly adjusting the ratio of various elements inside the alloy, the magnetization process will be improved. The magnetic force obtained is also different.

The Steel Alloy Laboratory has developed some equipment that is easier to magnetize than current steel, and the technology is advancing in an orderly manner.

After a large number of permanent magnets were manufactured, the project of trying to generate electricity through magnetism also made progress. Based on the way electricity creates a magnetic field, if the magnetic field changes, will electricity also be generated in the wire?

With this idea in mind, they quickly came to the gratifying conclusion that inside a closed wire, the changing magnetic field would produce an electric current.

When they first discovered this pattern, it was intermittent. When the electromagnet was energized and de-energized, they found that the coil on the outside would generate a weak current in the process. However, by repeating this process, they soon discovered that the gain of electric energy in this way was not worth the loss. Much more power.

But at this time, someone's mind was spinning faster and they had already realized how to solve the problem at hand. If it is difficult to change the presence or absence of an electromagnet, it is much easier to change the size of the coil's coverage.

So the members of the experimental team made a parallelogram coil, and then by continuously pulling the coil apart, folding the coil into a line, and repeating this step, current was obtained in a stable magnetic field.

At this time, the people in charge of the experiment, who can be called scientists of this era, had not yet realized the existence of magnetic field lines, nor had they realized that magnetic field lines have directions. Therefore, when doing this experiment, they did not try to rotate them. coil to change the magnetic flux passing through the inside of the coil, but try to use a more primitive way. The magnetic flux is varied by manually changing the cross-sectional area of ​​the coil.

However, at this step, they found that the magnetic field lines were very close. The same action was performed at different positions of the magnet, and the current generated was different. This rule is actually easy to summarize, that is, the closer the The two poles of the magnet, the greater the current generated by this continuous opening and closing of the metal coil.

Technology will continue to take detours, and this group of people still have not thought that the magnetic flux can be changed by turning a metal coil. The way they came up with this was by turning the magnet to change the magnetic flux.

It can only be said that people who are already familiar with related natural phenomena have a hard time imagining what kind of imagination will burst out when people come into contact with natural phenomena for the first time.

The first generator created by this group of humans with strange minds who had just come out of the primitive era was a ridiculous thing, because it looked more like a rotary engine, but the way it turned was different. It makes people feel mentally exploded.

In short, humans in this world made a strong bar magnet with magnetic poles located at both ends of the bar. Then they placed the thing on top of a pile of coils, and then the long bar was The magnet rotates rapidly, thus forming a regular current in the coil, even an alternating current.

In fact, if they were to turn the coil, the effect would be much better than turning the magnet on it, but you can't say that their technology must have taken a detour. After all, all practices are part of summarizing the laws of nature. If people go this way, they may not waste more time.

This weird generator excited the people in this tribe. It could produce a stable current, which meant that their electromagnets might be put to use.

So far, no one realizes that they are in the midst of a revolution of epic proportions.

With the continuous progress of experiments and a deeper understanding of convenience and magnetism, people here have gradually discovered the principle of electromagnetic induction, and in the process, they have also gradually realized how to convert electricity and magnetism into each other more efficiently. .

As their generators became more efficient and more diverse, after obtaining and gradually understanding the current, they also discovered the difference between alternating current and direct current.

So far, their mainstream generators have become two types. One is to obtain electrical energy by continuously rotating coils in a magnetic field, which is the most efficient.

Another method is to create a huge metal disc, and then place the metal disc in a magnetic field to make the metal dome rotate rapidly.

As for the store, it is exported from the center and edge of the round cake. Find Shuyuan www.zhaoshuyuan.com and the export of this thing is different from the previous one. What this thing conducts is direct current.

So far, humans in this world do not have a good way to store electricity, but someone has discovered that the water in this world will turn into gas when electricity is applied. The most important thing is that this gas and extremely rare water vapor There is a difference. After water vapor turns into steam, it will quickly decompose into a liquid in this world's extremely cold atmospheric environment compared to water, or even solidify quickly into a solid. It is difficult to preserve in such a low temperature environment.

But if water is turned into gas by electricity, these gases can exist normally in nature, and no heat is lost in the process.

What's interesting is that if you heat various gases, they will burn violently, and water will be produced after burning, and the water produced in this process is liquid water.

This phenomenon is actually nothing to people on earth. It is just that hydrogen and oxygen are mixed and burned together, and then water is formed. On earth, the energy released during this combustion process is more often used.

But here this feature caused an uproar among the tribe, because it meant that they could carry water for a long time in the wild.

To be precise, it does not carry water, but this special gas. It is normal for this gas to interact with the outside ambient temperature. In other words, it does not convert them into water without igniting them. Under such circumstances, heat will not be lost quickly due to huge temperature differences.

For humans in this world, this has a much better thermal insulation effect than the strongest thermos bottle.

[To be continued]

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