The reason Rebecca said it could not be used was very simple.
Ordinary people did not have the ability to charge the magic circle, and they could not control the activation and deactivation of the magic circle.
The magic circle of the mages and the simple symbols engraved on the stones were very different things. The latter was like picking up a stick from the roadside as a crutch, while the former was like using various technical means to make a wheelchair. The difference was equivalent to the difference between raw materials and industrial products. The symbols engraved on the stones would continue to work without the intervention of outsiders. Although they were weak, they did not require any skills. But the magic circle... it was a complicated thing to operate.
Running with two legs, one only needed to lift one's leg. But to reach 70 miles per hour, one had to buy a car, refuel it and get a driver's license. The same was true for the magic circle. It needed to be charged with energy and professionals with magic control skills to be responsible for activating and deactivating it, even for the simplest magic circle.
Heti and Rebecca could go to the blacksmith's shop to engrave a simple combustion magic circle on each furnace, but they could not stay here all day to charge the magic circle every other furnace of ores and control the energy flow of all the magic circles.
"If you want to engrave the magic circle on the furnace, its size is bound to be limited. Even with Aunt Heti's ability, she can probably only engrave a second-order auxiliary magic circle or below," Rebecca explained seriously and tried to make her expression look more professional. "And such a small magic circle can't be self-charged. A magic circle that can absorb free magic by itself has to be at least the size of a tent, so the magic circle on the furnace must be charged by someone. In addition, even the simplest magic circle only needs to be switched on and off, and ordinary people can't control it... "
Through Gawain Cecil's memories, Gawain knew that the magic circles in this world had very complicated classifications and operating principles. If one did not take into account those headache-inducing professional knowledge, they could also be roughly classified.
In terms of scale, they could be divided into small, medium, large, and super-large. The smallest magic circle could be engraved on armor and swords. At present, the two largest magic circles in the world were located in the City of a Thousand Towers in the Violet Kingdom in the north and the Starry Temple built by the elves in the south of the continent. The two magic circles were based on the city and outlined by the city's roads. They could be described as terrifying.
According to the complexity of its functions, it can be divided into two types: single function type and compound function type.
From the classification of the charging methods, there were two types: self-charging and external charging. The self-charging magic circle had a complex "absorption" structure. It could automatically absorb the free magic from the outside world and charge itself. However, since the free magic in nature was very thin except for the magic focus, the absorption structure of the self-charging magic circle was quite large. Therefore, all the self-charging magic circles occupied a large area, and all the small magic circles could only rely on external charging to replenish their energy.
Moreover, in this world, self-charging magic arrays were actually something that was rarely used — because the efficiency was too low.
A self-charging structure would usually take up eighty percent of the entire area of a magic array, but the energy it could provide was not as much as the energy of a branch of any magic focus. Such a large drawing area could be stuffed with several complex runic arrays. Therefore, for the sake of efficiency, the mages would rather choose to charge the magic array themselves than choose the slow and huge self-charging structure.
This was also the reason why all the large-scale magic facilities in the world were located near the focus of magic: it was convenient to recharge.
Gwen touched his chin and looked at the blacksmith furnace in front of him.
Then he asked two questions:
"Do we have to draw the charging part on the furnace?"
"Do we have to put all the functions in a magic array?"
Rebecca was dazed for a moment. She blinked in confusion. "What else?"
Gwen vaguely felt that he had grasped the key to the problem: people in this world seemed to be only focused on turning magic into the most primitive and violent power, or simply focused on the use of power by individuals. They had never considered how to popularize this "extraordinary power" in a more widespread and less basic way.
"Draw a large self-charging magic array, let it absorb the wandering magic in the air, and then leave an 'output terminal' on the large magic array to output magic power to the small magic array on the furnace. This way, the charging problem will be solved. As for the switch problem … it can make the connection between the furnace and the self-charging magic array controllable. When the connection is cut, the small magic array will naturally stop. And the large self-charging magic array itself has the property of over-charging, so there is no need to worry about it exploding …"
Rebecca quickly understood Gwen's idea in her own way. "Breaking the magic array into pieces and putting them together? You can do that? "
"This is more or less an idea." Gwen nodded. "I think we can discuss it with Heti. She should be more professional."
Rebecca strongly agreed. Although Aunt Heti's spellcasting was only at the level of a human body stroke, when it came to theoretical knowledge, those middle-rank mages might not necessarily be better than her!
So Gwen led them out of the place in a hurry, leaving the old blacksmith Hamel and a group of apprentices and handymen looking at each other.
"Master, are we … still going to open the furnace?" An apprentice asked cautiously. When the duke and the viscount were standing in front of him, he did not even dare to breathe. Now, he finally dared to speak.
The old blacksmith glared at the apprentice. "Nonsense! Of course, open the furnace! Don't think about slacking off. Whether we can have meat tonight depends on the result of this furnace! "
On the other hand, Gwen had sent Amber to call Heti to his tent. But when he finished his idea, the elegant lady shook her head.
"The idea of using a magic array to charge another magic array is good, but it's too difficult to operate … The output of magic power is a very precise matter. Once the 'interface' has a problem, both magic arrays will be scrapped. And the efficiency of the self-charging magic array is also a big problem. Even if you draw a magic array as big as the blacksmith's courtyard, the magic power it produces is probably only enough to power a few magic furnaces … "
Gwen looked at Heti. Of course, he knew that she would raise these difficulties, but in fact, he already had a solution.
So he smiled slightly. As he thought more and more deeply about this problem, he felt that he had finally found the right path to take. So he pushed aside the pile of drawings on the table, and spread out a particularly large drawing full of symbols and lines on the table.
He had finished drawing the thing on this piece of paper a few days ago, but it wasn't until today that he realized how useful it could be.
"Look at this," Gwen said.
Heti looked at the large runic array on the table in surprise. Her first reaction was that her ancestor could be so knowledgeable. "Ancestor … you know how to draw magic arrays?"
"I only know a little, and this magic array was not created by me." Gwen deliberately kept her in suspense. "Look at it first, what do you think?"
Heti lowered her head and carefully studied each symbol and the connection between the symbols. Her brows slowly furrowed. "They are all the most basic runes … The arrangement and combination are also the most basic. It seems that the highest energy level is not higher than level two?"
Gwen nodded. "Because the person who left this magic array can only control a level two runic array at most."
Heti looked up at him in surprise. When she looked down again, she could not help but have a trace of admiration on her face. "It's really all done with basic runes … Using the most basic runes to make such a large-scale magic array, this … this is really an incredible creation … This seems to be a structure that can draw free energy from the natural environment? But what are these extra complicated structures … "
Gwen pointed to the repeating structures in the middle of the magic array. "Enlarge it."
"Enlarge it?" Heti's eyes widened. Then, she suddenly realized. "Yes! This can be enlarged … and the structure here can further purify the free energy … In this way, these basic runes can draw free energy at a higher efficiency. This is really … really … "
Heti could not think of a suitable word to describe the feeling the magic array gave her. But Gwen knew what she wanted to say. "It's really hard work, isn't it? It's like a lame man walking around the world with a crutch, or an unarmed man carving a poem on a stone with a wooden stick. This is beyond the limit of effort, using the most basic second-order runes to draw a miracle that can make those great magicians stunned. "
"Those great magicians probably won't be stunned. They won't even look at it." Heti shook her head with a wry smile. "Because although this magic array is very creative, it is pieced together with second-order runes. No matter how efficient it is, the energy it draws can't be compared to the personal magic wells of the great magicians …"
"But it's a prototype, a basic model that can be constantly improved. It only has second-order runes, but what if you replace the second-order runes with third-order runes on the basis of this idea? What if you also increase the complexity of the combination to third-order runes? How many times more efficient will it be than the existing self-recharging magic array? " As Gwen spoke, he pointed to a few special nodes in the magic array. "In addition to efficiency, look at these more critical parts."
"This … seems to be a magic channel?" Heti frowned. "I saw them just now, but I didn't see the corresponding energy-consuming units. Is it because the magic array is incomplete?"
"No, it's because this magic array doesn't contain energy-consuming units from the beginning. Its only function is to supply magic to the outside world — to supply magic to a weak human. And because of this, it's different from the internal interface of the magic array. The compatibility of these channels is so high that as long as there's an energy-consuming unit, it can be connected, "Gwen said slowly." Now, can this magic array provide energy to the blacksmith shop? "
"If all the symbols can be used smoothly … No, it can be used smoothly. It has almost reached the limit of calculation!" Heti's face gradually became excited. She finally jumped out of the stereotype of the traditional magicians and realized the greatness of this thing. "High-efficiency self-recharging, and it can also output energy at a very wide 'frequency.' It can supply energy to the blacksmith shop, and even … supply energy to more things!"
Then she couldn't wait to ask, "Ancestor, what's the name of this genius magic array?"
Gwen took out a shabby notebook. "I don't need to name it. Its creator has already given it a name."
He flipped open the notebook, and on one of the pages, there was a short note.
"Annie, I finally completed the 'magic network' today. May it bless your health."
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