"If you just add combustibles, it won't actually increase the temperature of the flame too much. The main function of the combustible www.biquge.info is only to allow the combustible to be burned more fully. Therefore, if you want to increase the temperature of the flame, the most fundamental thing is to find a way to do it on the combustible. ”

"The fire spell we cast looks like there is no incendiary matter, but have you ever thought about where is the mana or true element of your spell? Can we understand it this way, mana or true element is the burning material of the fire spell? So, if you want to make the temperature of the flame higher, you have to think of a way to start with the incendiary material, that is, you have to start with the mana or true element. ”

"Actually, the more advanced spells have already involved increasing the flame temperature of the fire spell through the change of mana, that is, enhancing the power of the fire spell in cautery. It's just that, with your current cultivation, it is obvious that you have not yet reached that stage. However, this does not mean that there is no way, just like the experiment I just did, we can borrow from external objects to do things that we can't do otherwise. ”

"Looking at this fireball, I'm going to add a few things to it, which are usually easy to get, but when used in the right places, they can have an effect beyond imagination. Of course, when using it, you must be cautious, after all, foreign objects are not as easy to control as your true element, and if you don't do it well, you will hurt others instead of yourself!"

Ye Zan took out the pre-prepared incendiary agent, which was somewhat similar to the thermite used in the technology world, but considering the particularity of the spell, the formula was also adjusted to a certain extent.

Aluminum, a metal that was in the world of science and technology, was refined and used by humans very late, although it had a large reserve on the earth. That's because the difficulty of refining is relatively large, and aluminum cannot be refined with primitive smelting technology, until there is a certain scientific and technological foundation, and it really has the ability to refine aluminum on a large scale.

And this world, although in the world, the production capacity is still extremely low, just like the medieval era of the technological world. However, the technology mastered by the cultivators can be compared to the technology of the interstellar age of the technological world in many ways. Therefore, it is not very difficult for a monk to refine the metal such as aluminum.

However, due to some physical properties of aluminum, even if some people have refined aluminum, it has not been popularized and applied on a large scale. After all, for cultivators, when it comes to refining metals, that is, refining tools. But whether it is refining flying swords, refining magic weapons or even magic weapons, aluminum with soft physical properties is not a good choice.

Ye Zan combined the knowledge of refining tools and found a simple method of refining aluminum, although it was not as good as the industrial refining technology, but it was enough for these disciples to refine the required aluminum by themselves. Anyway, it is only used to make thermite, and it is not to produce aluminum products in large quantities, even if an individual refines a small piece a day, it is enough to prepare a thermite.

As for the refining method of aluminum, as well as the preparation method of thermite, Ye Zan will naturally take it out without reservation and teach it to these inner disciples who are listening to the class.

As the thermite was thrown into the fireball, the originally dark red fireball suddenly erupted into a dazzling white light, illuminating the entire lecture hall in a snow-white color. Those disciples all listened to Ye Zan's words and stared at the fireball closely, wanting to see what would happen to the fireball after adding thermite. As a result, all of a sudden, everyone's eyes were shaken, and their eyes felt even more uncomfortable than looking directly at the sun, and they couldn't help but let out screams of surprise.

And with the dazzling white light, there was an incomparably hot heat wave, which turned the lecture hall into a furnace in the blink of an eye. Especially the people at the front, who were more close to the fireball, their skin was hot from the heat, as if their eyebrows and hair were about to be scorched.

Although Ye Zan was able to use force field control to keep the fireball in mid-air, there was nothing he could do about light and heat radiation. If he wants to control the propagation of light and heat radiation, unless he uses the trick of black hole devouring, it is not a real black hole, it can only constrain the diffusion of light and heat radiation to a certain extent.

However, Ye Zan didn't intend to restrain the light and heat radiation, after all, whether it was the dazzling light or the roasting heat, it would not cause substantial harm to these disciples. Therefore, let them feel for themselves, and the changes in thermite are added, which makes it easier for them to accept this method.

The disciples in the front row reacted well, and immediately launched various defenses in front of them one by one, and the water film and light film were propped up in front of them, blocking the follow-up high temperature scorching. And their faces, in addition to the look of pain, were also much more shocked, obviously they had enough feelings for the change in the fireball.

The amount of thermite that Ye Zan put in was not very large, so the fireball soon began to gradually return to its original state. The strong light was gone, the heat radiation was not so strong, and after all the disciples regained their eyesight, they each withdrew the protective measures of their predecessors.

"How does it feel, the simple fireball technique, coupled with this simple incendiary agent, has this effect surprised you a little?" Ye Zan asked those disciples with a smile.

Where is this a little surprised, it is simply a big startback, okay! Those disciples secretly slandered Ye Zan's question, but they also had an extremely strong interest in the incendiary that Ye Zan's words said. Their vision was still a little blurry, and they still had the burning pain of being roasted, how could they not know how terrifying the fireball had just become.

"Okay, don't look at me like that, I'll tell you about the preparation of this incendiary agent. Under the extremely eager gaze of everyone, Ye Zan did not sell Guan Zi anymore and began to talk about the preparation method of incendiary agent.

And those disciples, when they heard that Ye Zan was going to talk about this, they immediately looked at Ye Zan with bated breath, and none of them dared to make any movement at this time. They are different from students in the tech world, after all, they are already adults and know what they need.

The preparation method of the incendiary agent is very simple, and there is no need to talk too much about the principle, so Ye Zan finished talking in a few words. Those disciples were worried that it would be complicated and difficult to master, but they didn't expect the preparation method to be so simple, and they couldn't believe it for a while after listening to it.

"Now that you have been taught how to prepare an incendiary agent, I believe you should be able to master it with your ability. Next, let's try it and make an incendiary agent by hand. As he spoke, Ye Zan took out the preparation materials that had been prepared a long time ago from the Qiankun Ring. Then he waved his hand, and the wrapped materials flew towards the disciples like a rain of flowers, and fell lightly in front of each disciple.

These disciples can enter the inner gate, can cultivate to the foundation building realm, not to mention that their IQ reaches two hundred and five, at least they are all smart people. Therefore, even for the first time, it is not a problem for them to formulate a qualified incendiary agent.

After everyone had prepared the incendiary agent, Ye Zan began to talk about the use of the incendiary in actual combat, and encouraged the disciples to express their thoughts.

This incendiary agent, after adding to the fireball, can greatly increase the power of the fireball, but how to do this in actual combat is a problem that cannot be ignored. Ye Zan himself, in fact, does not rely on incendiary agents, he has already tried before, using the improved golden spell to replace the effect of incendiary agents. However, these disciples are only building foundation realms, and they don't have the ability to cast spells like that, so they can't help but consider the question of how to use incendiary agents in actual combat.

However, the so-called "one person counts the short, two people count the long", and the so-called "three stinkers, the top pig brother Liang", so many disciples brainstormed, and still came up with a lot of practical methods.

Soon, a morning passed unconsciously, and under the reluctant gaze of the disciples, Ye Zan ended this lecture.

These inner disciples thought that Ye Zan, a primordial ancestor, would come to teach and preach to himself and others, and this opportunity must be very rare, and no one knew how long the next lecture would be. You must know that all along, the people who have taught them are those Jindan Grandmasters. And even if it is a Jindan Grandmaster, it is already a rare thing to be able to teach once in ten days and half a month, let alone the Yuan Infant Ancestor.

Of course, you can't blame those Jindan Grandmasters for being slack, anyway, there are only so many things that need to be talked about, and they are all fixed things that have not changed. Moreover, when those Jindan Grandmasters came to teach, there were often not many disciples who came to listen to the lectures, except for the "fresh" disciples who needed to learn those things, the other "previous" disciples had already heard it many times.

However, what these inner disciples didn't expect was that after Ye Zan announced the end of the lecture, he said to everyone: "Go back and think about what you learned today, and before you talk about the new content in three days, I will assess your mastery." ”

Hearing this, the disciples who had been quite reluctant were all stunned. And the reason why they were stunned was not because they heard Ye Zan say that they wanted to be assessed, but because of the sentence "I will talk about new content in three days". This means that the second lecture that they thought they would have at some point was actually three days later.

"Ancestor, do you mean that you will come to teach us in three days?" a disciple couldn't help but ask in a loud voice.

Ye Zan was about to leave, but when he heard this, he stopped, looked at those disciples with a smile, and said, "Hehe, where is this, don't you think that I will teach you a fireball technique?"

Indeed, although Ye Zan talked a lot about this class, it seemed to be just a fireball technique in the final analysis. Although, the actual effect of the incendiary is far from being limited to fireball magic, many fire spells can be used to increase the power of the incendiary agent. But these inner disciples, since their cultivation is only to build a foundation realm, the spells they can use are quite limited. So for them, it's no different from just talking about a fireball technique.

"Really, the ancestor will still come to teach, and he will tell us more things!" Hearing Ye Zan's answer, the disciples in the lecture hall suddenly couldn't hold back the excitement in their hearts, and even shouted out in a gaffe.

It is not to blame these disciples for not being stable enough, although the name of the inner disciple sounds good, but who would be satisfied with just being an inner disciple? Moreover, most of these disciples have been picked out again and again, and it is inevitable that they will have a feeling of being abandoned. Now, a patriarch in the hall will often come to teach them. For them, this is like a ray of sunshine shining in the dark, how can they be stable.

Perhaps, this is also one of the reasons why Mo Ru asked Ye Zan to teach. If these inner disciples have been kept in such a state where they think they are left to fend for themselves, how can they be expected to serve the sect.

"Well, don't forget what I said, those who fail the assessment will be expelled from the lecture hall. Ye Zan waved his hand and turned to leave the lecture hall.

And when Ye Zan's figure completely disappeared from sight, the entire lecture hall suddenly resounded with the sound of a mountain and a tsunami, which almost toppled the roof of the lecture hall. Some people let out a long howl as if venting, some people pinched themselves and refused to let go, and some people stared at the remaining materials on a few cases in a daze, and everyone was using various methods to prove that they were not dreaming.

In the world of science and technology, many students feel that the things they learn in school are not of much use in life, and naturally they cannot have enough curiosity about those knowledge. In this world, the cultivator's thirst for knowledge stems from the desire for strength, or the yearning for immortality. If Ye Zan is an old pedant who comes to teach these disciples poems and articles all day long, where will these disciples be so excited as they are now.

In short, as the content of the first class became known to more people, Ye Zan's class also ushered in more and more students. Not only the inner disciples, but even those personal disciples began to come to listen to Ye Zan's lectures on time every time. Later, those Jindan Grandmasters also became students who listened to Ye Zan's teachings. Even in the end, even Wu Changsheng, Jin Dasheng and other ancestors would often come to listen to the class.

After all, these things that Ye Zan talked about were not just for the knowledge of junior cultivators, but knowledge that had a certain impact on the entire spell system. The content of Ye Zan's talk is not only from the perspective of combustion, how to improve the power of fire spells, but through some knowledge of the scientific and technological world, various spells are analyzed, and then the power of spells is affected from all aspects.