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It seems that there are more and more people in the shopping malls on the street, is it because all the students are on vacation? I hope that the atmosphere of the New Year this year can be a little bit better, last year was really woody

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"But it's not an ordinary obsidian inlaid in the power guide."

Probably remembering that today is not here for popular science education, Tio quickly dragged the topic back to the guide, which is the point.

"The gem-like thing you see is a crystallization circuit that is made from the original Qiyao Stone ore that has been mined and tempered, and then synthesized through a special process. Different crystallization circuits have different functions, and when combined, they can lead to a variety of different phenomena. ”

Levi could probably have guessed it, but what Tio said next surprised him.

"The most convenient feature of the force guide is not the phenomenon it can attract and the energy it provides, but the peculiarity of its 'even if the energy is consumed, it can be filled naturally'."

"What? Isn't this the equivalent of a perpetual motion machine? ”

Levi was so surprised that he almost shouted, although he is not an expert in scientific research, but the meaning of perpetual motion machines to the exhibition of human science and technology is believed that few people do not know. That's a dream that countless scientists have pursued all their lives, but it is still unattainable and seems to never come true.

But in a blink of an eye, he was relieved, although the perpetual motion machine was fascinating, but the little thing in his hand obviously did not have much in common with the technology on the earth. If you insist on classifying, it should be a natural product of non-science. If you compare it to the wizarding world, a 'female demon' like Evan, who is immortal and immortal, and can continue to be powerful even if her magic power is exhausted, as long as she takes a short break, isn't it equivalent to the prototype of a perpetual motion machine dreamed of by scientists...... Levi had a funny scene in his mind where a bunch of electrodes were attached to Evan's body and cables were drawn out for electricity, and he quickly stopped being too impressed, and accidentally let his pillow person know when he slept at night and talked in his sleep.

"I have learned a little bit about the technology of this world since I came here. From the perspective of working principle, the power guide is indeed a bit similar to the electrical appliances in this world. As long as the power supply is continuous, the electrical appliance can run all the time, and while the power guide is working, a part of the conduction force is dissipated into the air and slowly re-gathered back into the power guide after a period of time.

It can be understood that the power guide is equivalent to a motor that outputs power on one side and at the same time reabsorbs the output power for recycling. “

Explaining the advanced things that belong to her own world, there is a hint of pride in Tio's tone, which proves that she is still a young girl after all, and not just a Lori like Evan.

"However, in the end, the power guide is not as powerful as the perpetual motion machine conceived by the world's scientists. Although it is possible to talk about the reabsorption of the conductive force of the output, it requires a process, and the more the output, the longer it will take to absorb and replenish. It's unrealistic to think of using magic in a battle without limits just by relying on a force guide. ”

If they can do whatever they want, even if the magic attack power they can cast is lower, it will be uncomfortable enough. It's like carrying a rifle with unlimited ammo against a soldier hiding in a trench with a heavy machine gun handrail. Just by relying on gapless strafing, the opponent can not raise his head, and there is no chance to counterattack at all.

"Of course, just as some of the electrical and electronic devices in this world can also choose to use batteries to supplement their energy. The conductor can also quickly replenish the conductive force in other ways, such as this EP filler. ”

Theo pulled a small bottle out of his pocket and sandwiched it between his index finger and thumb. The vial was made of some material, but it looked a bit like a potion in a small bottle, and Levi estimated that the truth was similar to the magic potion that Evan used as a catalyst and magic supplement.

"It's a pity that I don't know how to make fillers myself, and I didn't bring much with me when I came because of the shape of the problem."

In fact, Lévy had long suspected that this group of 'guests' who had descended on Earth in various ways did not feel like they had premeditated and planned to reach through the dimensional wall by their own abilities - except for his good daughter Fett. If the sight had been prepared, such as bringing a large amount of the filler in Theo's hand, would the gang still need to sneakily make small moves like they do now? Don't look at Levi has been staying on the island leisurely, it's because he has so many intelligence channels that he never needs to collect it himself. Recently, there have been many mysterious incidents or cases around the world outside the island, except for the part that is simple and rude at a glance and knows that it is the low-level Red World Apostle and Phosphorus indiscriminately sabotage, there are still some cases that even well-known detectives can't figure out, maybe some of them are from the hands of these outsiders.

"You already have a rough idea of how the force guide works, right? In fact, it doesn't matter if you don't know this aspect, just like people in this world don't need to know how to use phones and computers to do those convenient functions. ”

Lévy nodded, if anyone told him that the 'pocket watch' in his hand was a new product of a company or research institute, he would be curious at most about what function it was, and he would definitely not be interested in knowing where its advanced and innovative nature was.

…… However, does this girl really belong to the category of topics that involve areas that she is good at or interested in, and changes her usual impression?

When I first saw it, I thought it was a doll that didn't smile, but as soon as I entered the guide, the topic became endless, and the body language based on the fingers was quite rich. It felt like Eve, who was arguing with Shana about whether taiyaki or pineapple buns were better, and Levi laughed secretly in his heart, not letting the girl next to him hear it.

"So, the most important thing is to know how to use it."

Theo picked up the power guide in Levi's palm, hooked his fingers on the chain that he had hung over to let him go, and let it hang in front of him and turn it gently.

Levi felt that as a tool or even a weapon, the concealment of the force guide was quite good. Looking at the way Theo held it, how many people would not mistake it for just an ordinary pocket watch? There are four pointers on the hollowed-out side, so you didn't think about the suitability of espionage in the first place?

"When it comes to how to use tactical force guides, I think it's better to find a place for you to experience it for yourself, rather than just talking about it here."

Lévi looked at Theo with wide eyes, he just thought that this girl had the same addiction to teaching as a teacher like a certain vampire Lori. In fact, he had forgotten the position in the consortium that Theo had applied for when he first introduced himself.

As a tester, it is natural to pay more attention to practical verification than theoretical explanations.