Interference Circles - It must be admitted that although Gawain Cecil is half a naturalist, and the knights have a lot in common with other legal professions in the basic field of using magic, but when it comes to those subtle and specialized fields, Gawain's knowledge is still a little insufficient, and he inquired from Hetty's side to figure out what is special about the magic circle engraved in those antique crystals.

In short, they are "scoped validity".

This type of circle can operate on the energy storage device within a specific range, and it does not have to be engraved on the surface or inside the energy storage device, or in other words, as long as the key nodes on the circle are connected to the energy storage device, its effect can be activated. In this respect, the interference array is very similar to the common large formation, the large formation is to build a magic array, and then put the magic source such as energy storage crystals on the key nodes of the magic array as an energy source, this structure of course does not belong to the magic circle engraved in the crystal, but in fact, the interference array and the common large formation still have an essential difference.

Interference circles are usually extremely small, the range of action is also very small, the function is more single, and its own rune structure is actually incomplete, the energy storage part and the rune part must be combined to be a complete "actuator", so this kind of interference circle is usually used as a "activation mechanism", used to simply control the opening and closing of some mana sources, or......

Used to blow up the mana source.

Gawain understands very well why the Magus Gondor carved an interfering magic circle into these military crystals - it stands to reason that since they have stuffed these runes inside the crystals, there is no need to bother to set them up as interference, but in fact, the problems faced by soldiers on the battlefield are much more complicated - not all military crystals can remain intact throughout the battle, and many times, it is the norm for this type of crystal to crack and break in advance due to the fierce battle, At this time, the circle part of the crystal core may still be able to function due to good protection, but the entire crystal has actually disintegrated.

In this case, the rune experts in Gondor's military industry thought of one thing: at least make sure that the self-detonation function of these crystals could still be used at the end of the day.

Therefore, the self-detonation part of these crystals uses an interference circle, which ensures that even if the crystal shatters, a fragment can be thrown out - as long as there is a little energy left in the fragment.

"I just don't know what happens when these crystals are gathered together in large numbers and detonated at the same time," Gawain touched his chin and began to think in his mind, "Or something to bond them together?" And it's unclear exactly how they were formed, and only a small fraction of the large number of samples sent by Rebecca were doped with the crystals......"

Hetty looked at Gawain's face, and she could feel that the other party's interest was now at an all-time high, which made her a little confused: although she was happy that these strange crystals could come in handy, she couldn't imagine how valuable these "magic crystals" could be that had no other purpose than explosions: "Ancestor...... You look so happy? ”

"How can you not be happy?" Gawain turned his head and glanced at Hetty, "Don't you think these things will be of great use once they come in handy?" ”

"Hmm...... With the right processing, it might be a blast-type magic item, and it could be useful for a mage of average strength like Rebecca and me, and it could also be used as a secondary weapon for soldiers," Hetty had stretched her imagination to the limit, "but I can't think of anything else it could be used for." ”

Gawain looked at Hetty's somewhat clouded expression and opened his mouth, but found that it was difficult for him to understand the image that was emerging in his mind.

Until the development of explosives and the mass production of explosives, anyone living in the Middle Ages would not have imagined those scenes.

So he simply didn't explain, but raised the sheepskin bag in his hand: "I'll leave you all these samples, to be honest, there aren't many of them, you try to determine their various properties before you consume them all, and by the way, try to see if the 'Detonation Circle' in the Gondor Crystal works for them." I'm going to go to Rebecca and find out how the hell that girl got all this stuff out of here. ”

Hetty took the sheepskin bag in Gawain's hand with dignity, and then as if he remembered something, he deliberately mentioned: "Ancestor, Rebecca is a very hard-working child, but she has hardly been praised since she was a child, so she ......"

"Don't worry, I'll compliment her," Gawain smiled, gesturing to the sheepskin bag in Hetty's hand, "I've even decided to call these crystals 'Rebecca Crystals' - if that girl can reproduce them." ”

After saying this, Gawain told Hetty to pay attention to safety and protect himself when testing the detonation circle, and then left the magic laboratory.

And until Gawain left, Hetty was embarrassed to say what she really thought in her heart - in fact, she meant to let Gawain take it easy when he praised Rebecca, that child had never been praised since he was a child, and once someone praised him, he might jump into the sky......

But forget it, since the ancestor is so happy, it's better not to spoil his interest.

Anyway, Rebecca is resistant and optimistic, it's really a big deal to jump to the sky......

After leaving the magic lab, Gawain went straight to the place where Rebecca tried to burn the cement, but he was disappointed, and only a few workers in the furnace area were here to clean up the burned residue, and after inquiring, he learned that Rebecca had gone to the "steel factory".

The foundations of the web had been completed, the first furnace was in the final stages of installation, and Rebecca had arrived early in the morning to oversee the work.

Gawain examined the slag removed from the furnace to make sure there were no crystals mixed in it, and set off for the "Iron Works" on the east side of the camp (although a shelf had just been erected).

As soon as he arrived at this place, which was not long ago called the "blacksmith's shop", Gawain realized that he had been right to hand it over to Rebecca.

The courtyard that had once dug out a large number of ravines for the purpose of burying the magic array had now been leveled properly, and there was no trace of the magic array on the rammed ground, and the only thing that could prove that there was indeed a magic circle buried below was a neatly arranged silver-white column on the surface of the courtyard every ten meters.

The pillars were original magic sensors coated with a layer of Mithril.

In addition to these "sensors" that protrude out of the ground and are more than a meter high, Gawain also saw a lot of neatly arranged stone slabs in the courtyard, which are distributed between the sensor columns with equal spacing, but only half of the yard is paved.

Glittering runes could be seen on the surface of the slab.

Gawain vaguely guessed what the slate was for.

The whole project was completed beautifully and reasonably, not only was the magic array extremely properly "encapsulated", but what was even more satisfying was the neatly arranged columns and stone slabs, which were so pleasing to the eye, so strict and precise, even knowing that they were the products of handiwork rather than industry, Gawain still felt that he had been greatly satisfied as an obsessive-compulsive disorder.

Neatness, neatness is king! Rebecca really fully understood all the requirements that Gawain gave her, and she also thought of the need for this place to expand production capacity in the future! Empty spaces have also been reserved for those places where the slate has not yet been laid, obviously for the future!

There were a lot of people busy in the yard, carrying tools to sweep up the leftovers, but Rebecca was still easy to find, because Gawain could see the large black furnace in the corner of the courtyard at a glance, and the head iron fireball baby dancing and directing by the furnace.

"Be careful, be careful...... The structure must fit perfectly with the slate! Don't be perfunctory! Accurate, accurate, you don't understand...... If you can't stick it, you won't have meat to eat, you get the idea!! Hey, you don't need to put the iron rod next to you first, and I'll talk about it when the rune is installed...... What about drainage troughs? The drainage chute was moved over...... Let me take a look at the drawings! ”

Looking at Rebecca, who was immersed in her work with excitement on her face, Gawain couldn't bear to disturb her, he stopped a few serfs who wanted to salute in fear at the sight of his face, and looked up at the newly installed furnace with appreciative eyes.

It's a ...... The beautiful furnace, which is more than four meters tall compared to the old furnaces that are just over a meter high, and is pitch black (due to the fact that the materials used to build the furnace are mixed with blackstone powder to further enhance the magic affinity), it abandons the traditional "potbelly furnace" structure in favor of a rectangular hearth, at the upper end of which three chimneys arranged in parallel can be seen, and on the right side of the lower end you can see a protruding rectangular plane, The plane was inscribed with a not-so-complicated rune circle, part of which extended to the front of the furnace, where there was a metal plate that seemed to be movable, and under the metal plate was a connecting rod connected to something like a pedal, which seemed to be some kind of control mechanism.

Since the control mechanism is located on the front, the openings for refueling, pouring ore, extracting slag, and exporting molten metal are all located behind and on the left side of the furnace body.

This is neither like any kind of furnace on Earth that Gawain knew in his previous life, nor is it very different from the traditional furnace of this world, and it does not even quite correspond to the blueprint that Gawain originally gave to Hammer -

Apparently, the old blacksmith had worked his way up to improve the drawings.

In Gawain's view, this kind of improvement is excellent, both as a result of the improvement and as a result of the "improvement" itself.

It was only then that Rebecca noticed that the people around her had quieted down for some time, and everyone looked in awe, and she looked around in a daze, only to see the ancestor who was circling around the stove.

The little girl was taken aback: "Ah! Ancestors! How did you get here? ”

"I've got something to look for you—but I've seen your progress by now," Gawain waved his hand with a satisfied smile on his face, "Honestly...... It was better than I thought. ”

"Yes, yes?!" Rebecca suddenly looked overjoyed, "Do you really think so?" ”

"If you didn't do these things well, I'd have stopped you from being in charge of it a long time ago," Gawain couldn't help but smile, "Be confident in yourself, I said, you're the pride of the Cecil family." ”

When Rebecca heard this, her face almost lifted to the sky......

(Damn, it's on the shelves tomorrow!) ）