Vol 5 Chapter 41: Magnetic line of force

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This article was quickly published in the top journal "Magic". In just four pages, the entire academic city exploded in an instant. People have discussed the relationship between electricity and magnetism. Whether the rotation force conforms to magic mechanics has caused widespread controversy.
Fortunately, everything hasn't settled yet, and no one blows his head.
Under the morning sun, the City of Academics, a city entirely composed of wizards, is still busy with countless golems and activated constructs. Occasionally I see two or three wizards, all discussing "current". Topics such as magnetic effect, "rotational force", etc.
In the auditorium where wizards gather and communicate daily, many wizards gather here spontaneously. They are eagerly and fiercely discussing, with red faces, and they don't look like a powerful wizard at all, but more like vendors and customers in a vegetable market.
"Rotational force is also a force, which may not be attributed to magical mechanics."
"That's not necessarily true. Master Ace also said that magic mechanics is only a relative truth and has its scope of application. Once it goes beyond the scope, the truth becomes a fallacy."
"You just assume that magic mechanics is wrong, and I'm afraid it is also a fallacy."
"It is not the assumption that magic mechanics is wrong, but the recognition of the concept of relative truth. I think you are falling into your own stubbornness."
In the unhappy discussion, there are also many wizards who did not focus on the rotation force. They are more interested in the current magnetic effect. Although the rotation force and the current magnetic effect are inseparable, it is obvious that the concept of electromagnetism is interesting. A lot of imagination.
In the Leiden laboratory, as the wizard who invented the "Brue Stack", Leiden was very sensitive to academic papers on electricity. After reading Thales' short four-page paper, he was greatly shocked.
"Thylus is really a genius, and he was able to use such a simple experiment to find the magnetic effect of electric current. Thanks to Master Ace’s magic net, otherwise the development of electricity could not be so fast. I think the rotation force should explain the magnetic phenomenon. The key is magnetism, electricity, and gravity. I need new experiments."
He quickly buried himself in the laboratory and kept designing experiments. After failing dozens of times, he finally designed a successful experiment.
Place two wires in parallel, one of them is fixed, the other is suspended, you can freely choose, by changing the size and direction of the current, the length of the line segment, the change in the position of the wire is measured.
The suspended wire can twist and swing freely, and the swing angle can be calculated with the meter above.
The suspension wire is parallel to the fixed wire. When both wires are connected to the power source, they interact with each other and the suspended wires will swing.
The results of the experiment are as follows:
When the current direction is the same, the two wires repel each other; when the current direction is opposite, the two wires attract each other.
The force between wires per unit length is inversely proportional to the square of the distance between them, and proportional to the magnitude of the current.
Leiden organized his experiment into a thesis, and the power of the great source also poured into Leiden’s body through the magic net. His power was enhanced to a certain extent, but this degree of enhancement only strengthened his level of the golden wizard. The strength is not enough for him to break through the legendary wizard.
But even so, his discovery is still very great, this law once collided with magic mechanics!
Leiden sighed inexplicably and murmured: "The rotational force generated by electricity is definitely suitable for over-distance action. There is no doubt that we have not broken the rule of magical mechanics."
Regrettably and fortunately, with inexplicable emotions, Leiden mailed this paper to the "Magic" editorial department.
Leiden's thesis caused widespread repercussions, and many fans of magic mechanics were celebrating. This is undoubtedly another victory for magic mechanics and a great embodiment of Ace's crown.
At the same time, Leiden also gained fame. He began to be as famous as Thales in the field of electromagnetics, and was called "Electromagnetic Double Blade" by wizards. The new theory also began to be called "Electricity and Magnetism."
Ace quietly observed the electromagnetic revolution set off in the realm of heaven. It was a revolution about power. It was the result of the natural birth of the wizarding civilization that Ace had cultivated for many years. He readily accepted all of this. The changes have a more profound impact on the entire wizarding world.
This world has been branded with more wizards, and it is more in line with its name, wizarding world.
There are more and more researches on electricity and magnetism. As a wizard who originally loved electricity very much, Allen is also studying. He has returned to the realm of heaven from the blood planet, while Eva and Luther have stayed on the blood planet. , Continuing the social experiment.
Bru and Allen hit it off and they formed the Bruce Joint Laboratory. Their first task was to try to explain the magnetic phenomenon.
Allen said to Bruce: "I think magnetic phenomena are essentially electric currents. According to the current microscopic field research, we have not found hypothetical atoms, but molecules can already be observed. We can assume that all molecules have electric currents, and then Use hypothetical thinking to try to explain electricity and magnetism."
Bruce also agreed: "Like the phlogiston hypothesis back then, we can approach the truth in an approximate way. As long as we can understand the truth of the world to a certain extent, we can get positive feedback from the world and even take the opportunity to break through the legend. level."
They began to discuss theoretical hypotheses all day long. Allen had a nap and dreamed that he had become very small, as small as a molecule.
Each molecule was shrouded in circular currents, and they were chaotic with each other. Allen commanded the molecules to line up, adjust the direction of the current to the same, and suddenly woke up.
He got up and found Bulu who was sleeping, waking up and said: "If every molecule, every molecule that composes an object has a circular current, we assume that it is a primary current, which generates magnetism, generally The primary currents of the objects are disorderly, so the generated magnetic forces cancel each other out, and no magnetism is displayed on the macroscopic level.
When there is a strong magnetic effect outside, the direction of the molecular current of the object is the same, and the direction of the magnetic field is also the same. From the macro view, the object is magnetized. "
When Bruce heard this, he felt that this statement was somewhat interesting. The two discussed it all night and finally wrote a paper called "Molecular Current Hypothesis", which was published in "The Wisdom of Magic".
Because of the lessons learned from the phlogiston hypothesis, they emphasized that it was just a hypothesis at the beginning. Nevertheless, this hypothesis still explains many things to a certain extent. Based on this hypothesis, Allen also successfully constructed several magnetic spells.
Many wizards who don't pay attention to theory, see that magnetic magic is powerful, so they use it directly.
But Allen was still dissatisfied. He tried to explain the meta-current from the perspective of universal gravitation and the action of over distance, but it didn't happen. He was unwilling to need an experiment to provide evidence, so he and Blu designed such an experiment.
Fix the coil and suspend a light copper ring. When the coil has current passing through it, a strong magnetic field will be generated.
Allen believes that if a strong magnetic field can magnetize the copper ring, that is, the molecular current takes the same direction, then the copper ring will sway when approaching a small magnet.
It's a pity that things were counterproductive. When Bru approached the bar magnet, the copper ring did not change.
Allen frowned and said, "Maybe copper is not as easily magnetized as iron."
Bru nodded and said, "We redesigned this experiment and replaced the magnetic strip with a horseshoe magnet that is more magnetic."
This time the experiment was very strange. The copper ring twisted slightly at the moment the power was turned on and off, and quickly returned to its original shape. When the current continued, the copper ring was the same as the last time.
Both Bru and Allen noticed the moment when the power was turned on and off. Bru said: "Maybe some substances cannot be magnetized very easily like iron, and may only be magnetized for a short time."
Allen believes: "Magnetic induction can generate electric current, but this has nothing to do with the molecular current hypothesis we want to verify."
When he spoke, he also forgot that this was just a hypothesis, and it might have nothing to do with the facts. The two put the experiment into a paper and mentioned the induced current phenomenon lightly.
Can magnetism produce electricity?
Such an answer that might change the world was handed over by Ellen and Blue, and Thales widened his eyes when he saw the paper. He keenly realized that the answer to magnetism and electricity might be hidden in it.
However, after repeating Allen's experiment, Thales found nothing, not even the slight movement the two said.
Thales, who was very puzzled, personally came to ask Alan and Bru for advice. After a conversation, he learned that Brute had written the experiment report wrong and the copper ring had been written as a copper plate.
Thales bid farewell and thanked the two, and then continued the experiment. After multiple failures, Thales redesigned the experiment.
His new experiment is very simple. A coil is wound on both sides of an iron ring, one side is connected to a power source, and the other side is connected to a small magnetic needle that monitors the current.
When the switch or disconnection, the magnetic needle deflects and returns to the original position after shaking.
"It's not wrong, this is magnetism! It's just that the induced current is too short, and many people haven't observed it. Once again, I was lucky enough to stand on the shoulders of giants."
Thales did not rush to publish a paper, but continued to conduct a large number of electromagnetic experiments, and finally confirmed that the induced current can be divided into five categories: changing current, changing magnetic force, constant current in motion, moving magnetism, and A conductor moving in magnetism.
He integrated all the experimental results and named these five phenomena "electromagnetic induction".
The Monet has already mobilized the source force shock, and it seems that only after Thales completes the thesis, the world feedback will come under the guidance of the dream core.
Since the birth of the magic net, world feedback has no longer caused violent natural anomalies. Transmission through the magic net can save energy to the greatest extent and reduce the movement of feedback.
Thales did not notice this change, he murmured: "How to explain electromagnetic induction, how to explain it?"
After writing half of the paper and throwing it there, Thales returned to the laboratory. The closed loop coil completed by the "Brue Stack" continued to flow. It seemed to have some inertia, so it always wanted to keep the original. Something.
When the magnetism in the coil changes, the coil will be in a state similar to tension, and induced current is generated. The induced current will generate new magnetism in the coil, and the new magnetism will prevent the change of external magnetism. We always want to keep the coil in a balanced state.
Thales murmured: "Perhaps this state of equilibrium can be called an electrical stress state."
But this state was too vague. Thales accidentally placed iron filings on a piece of white paper, which was placed on the magnet, and found that the iron filings were distributed regularly.
He was surprised and said: "This distribution, like an invisible line, can be called a magnetic line of force. The explanation of electric tension is not as simple and clear as this magnetic line of force."
As a result, a large-scale thesis called "Electromagnetic Induction and Magnetic Field Lines" was born. When Thales wrote the last word, the new source force merged with the source force originally waiting here through the magic net. The world’s feedback Instantly entered Thales' body and soul.
Washing and upgrading his life essence, allowing him to be promoted to a second-level life in an instant, this promotion is so smooth that Thales feels a little unreal.
"This kind of feedback should be a more important discovery, right? It's really unexpected that the promotion went so smoothly."
The soul secret space has naturally evolved into a mental world, and a magnetic line-shaped god-given magic model phantom has also been suspended in the mental world of Thales.
He did not rush to establish a basic magic model for his mental world, but mailed the paper through the shadow crow, lying on the bed and slumbering.
The next day, the editorial department of "Magic" added a special issue almost overnight, selling Thales' tome as a separate issue.
People rushed to buy, reading Thales’ latest research results, a large number of detailed experimental evidence, five clear phenomena, and the concept of magnetic lines of force. All the wizards who read were convinced, and the two of Bru and Allen were even more convinced. He smiled bitterly.
Bruce said: "Thylus is indeed a genius. He especially thanked both of us. He humbly said that the results were discovered with us, but we both knew that we ignored it."
Allen nodded: "Indeed, although we have given Thales a certain inspiration, the five phenomena and the concept of magnetic lines of force he summarized are absolutely genius and original."
The two wrote to the Tower Academic Committee again, rejecting the honor Thales wanted to share with them. Thales, who had just woke up from his sleep, heard about it, and they asked Bru and Allen to persuade them many times. Later, the last three shared the honor.
Ace convened all the legendary wizards on this day and held a meeting of the Supreme Council.
A newcomer came to the panel, Logan the Big Hat. He finally gained enough source power to break away from the planet he dominated and ascend to the realm of heaven.
So far, the wizarding world has a total of seven legendary wizards: Bayern, Dana, Betty, Witte, Wallen, Laval, and Logan. The highest panel of the Magic Council also has eight members including Ace.
After everyone arrived, Ace said: "Today we are summoning everyone. There is only one proposal. I propose to set up a number of outstanding academic awards to encourage and honor our wizards to devote more attention to magic research."
The rotating chairman Dana got up and bowed slightly, and asked gently: "Master Ace wants to set up a series of awards specifically for academic research achievements?"
Ace nodded and said, "This is how I plan to set up the Magic Award, the highest comprehensive award, the element award, the astrological award, the life award, the soul award, the alchemy award, and the contract award. There are seven awards in total. It is not awarded every year. As long as the academic achievement of a wizard has been evaluated by the academic committee for great historicality, great pioneering and great originality, we will award the prize.
If no one meets, we cannot lower the standard and the award will be postponed. "
The legendary wizards nodded, and Bayern asked: "Then how do we set up awards?"
Ace said: "My initial plan is to award a top-quality gold-level magic item and a large number of magic stones for the highest award of the subject. The overall highest award is a top-level legendary-level magic item and two top-quality gold-level magic items. Specific standards and operations The details are up to you to discuss and decide."
After speaking, Ace disappeared in a flash and disappeared into the conference room. The legendary wizards glanced at each other, and the rotating chairman Dana stood up and began to preside over the discussion.
In the new world, there is no wizard's original agreement, but as the master of the world, Ace still continues the agreement, so he also knows a series of magic models obtained from electromagnetic research.
These spell models in turn adjusted his mental world and the projected demiplane "dream world".
The entire dream nebula kept flickering, and Ace's eyes flickered with white light and murmured: "It's not easy for me to wait. If it weren't for cultivating the endogenous power of wizarding civilization, I really want to accelerate all of this on my behalf."
In front of him, a cluster of star sand gathered, showing a picture, it was Thales.
Thales looked excited. He had just confirmed through experiments that the induced current is proportional to the conductivity of the conductor and inversely proportional to the resistance.
"It's not wrong. The current generated by the Bruce stack is the same as the induced current. Since it has the same properties, the induced current should also have an electromotive force, which is the so-called induced electromotive force, and the induced current is generated by the induced electromotive force.
The relationship between the two is the same as the relationship between electromotive force and current. The induced electromotive force is the cause and the induced current is the result. "
As he spoke, Thales was struggling to write, "There may not be an induced current in the changing magnetic force, but there must be an induced electromotive force, just like water flowing down a mountain, whether there is water or not, the mountain must exist.
If there is a closed loop, the induced electromotive force will have'water'. When the magnetic force in a loop increases, the direction of the induced magnetic force generated by the loop induced current is opposite to the direction of the external magnetic force, just like denying the external magnetic force into the loop; when the external magnetic force Attenuation, the direction of the induced magnetic force is the same as the external direction, just like leaving the external magnetic force there. This change is the same as inertia.
Here I propose a concept called ‘magnetic flux’, which is simply understood as the intensity of magnetic lines of force per unit area, where the intensity refers to the number and density of magnetic lines of force.
In this way, we can explain the conditions for the induced current: the magnetic flux passing through the closed loop has changed.
This can also explain the copper ring experiment of Allen-Brook, because the magnetic flux in the copper ring changes, it produces the induced current. "
After writing all this, Thales put down the paper and said brightly in his eyes: "In fact, when I used a copper plate, there should also be induced currents, but the moment of inertia of the copper plate is too large to rotate easily. In this case, it should be possible. Make a real generator based on the principle of induced current!"
He made a base, then made a few wooden brackets, fixed a U-shaped magnet on the bracket flat, and then put a copper plate in the middle of the U-shaped magnet, and reinforced the shaft and handle, plus the corresponding Wire.
Shake the handle and the copper disk rotates. From the edge of the copper disk to the center of the circle, it is equivalent to a conductor. The movement of the conductor in the magnetic lines of force will cut the magnetic lines of force, thereby generating induced current. Such a hand-cranked copper disk is the first generator!
Although the current generated is very weak, far inferior to magical power generation, it is still extremely important because all the principles are the same.
The spell model in Thales’ mental world is becoming clearer and clearer, and with the clarity of thinking, the
generator
spell in the purely magical sense is gradually born. The principle of electromagnetic rotation will be the cornerstone of electromagnetic magic.
Leiden, who was sleeping, heard the sound of the shadow crow knocking on the window, rubbed his eyes and got up, muttering in a low voice: "Why is it here again, another explosive discovery?"
Pulling out a scroll from the mouth of the shadow crow, skillfully stuffing a few magic stones in, Leiden opened it, and the sleepiness disappeared. Thales, who proposed the concept of magnetic field lines, made a new discovery. He actually created power generation Machine, and the principle he is based on is even more dazzling.
"The principle of electromagnetic rotation, induced electromotive force, and magnetic flux are simply the wisdom of Apocalypse. If Master Ace laid the foundation of mechanics, then Thales is the cornerstone of electromagnetics."
At the same time, the Supreme Jury also issued the No. 1 Order of this year. In the name of Ace, the highest academic award, the Ace Magic Award, was established, and the Bayern Astrology Award, the Logan Element Award, the Wallen Life Award, and the Witte Award were established. There are a total of seven awards: Soul Award, Betty Alchemy Award and Dana Contract Award.
Among them, Warren and Dana are not wizards who specialize in life magic and contract summoning magic, UU reading www. Uukanshu.com just needs two legendary wizards to name these two disciplines, and they have no choice but to name and formally take charge.
In fact, if you talk about life magic alone, the Lich Werther is very proficient in this, and Varen, who drove the ducks to the shelves, began to visit Werther frequently to ask him about the mystery of life magic.
After the establishment of the academic awards, Thales was notified almost immediately and became the first winner of the Bayern Astrology Awards, and Bru, Allen and Leiden were also ranked in the following years. Thales’s Contributions are not only the Bayern Astrology Award, even the Ace Magic Award is eligible.
However, considering the weight of the awards, the highest jury considers that it is more appropriate to award subject awards first and then award the highest awards. This has also formed a tradition. To win the Ace Magic Award, you must have the highest awards in the six university categories.
Bayern also found Thales personally. Having a naming is not only a glory, but also a responsibility. As the legendary wizard named, Bayern must personally make two golden magic items for Thales.
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