In fact, many of the things Ye Zan said would seem specious and even full of loopholes, not to mention science and technology workers, but also educated students in the science and technology world. But so what? Ye Zan is not here to provide science education to these inner disciples, he just wants to use these introductions to elicit some of his ideas about magic.
Moreover, many basic knowledge in the technological world, those theorems and laws that almost every middle school student knows, may not be fully applicable in this world. For example, the sun is not a star, but the condensed manifestation of the so-called "Dao". The moon is not a small satellite that does not emit light, but is the condensation and manifestation of another avenue that is not inferior to the sun. Also, this realm is not a planet, and there is no rotation or revolution. The rotation of day and night and the changes of the four seasons are also another form of display of "the great road".
Another example is the fire that Ye Zan mentioned now, saying that fire is the phenomenon of light and heat produced during the burning of matter. But can this explanation really explain everything? You must know that in this world, in addition to the ordinary fire, there are also strange fires such as red lotus karma fire, Yimu green fire, Netherworld Cangyan, Nanmingli fire and so on. This is one of the reasons why people in this world generally regard fire as a material existence and do not think about it as a "phenomenon".
Of course, many things in this world may seem mysterious and mysterious, but in the end they can all be explained by science. However, this explanation process, or verification method, has many more twists and turns than the original verification method. Perhaps those strange fires with different names and different powers and functions are just phenomena caused by the burning of a certain substance, but how can Ye Zan verify it
Anyway, now Ye Zan has the cultivation level of Nascent Soul Realm and has a very high seniority in Yuqing Sect. No one dares to question what he says. In this world, most people still have a deep sense of awe for authority, and authority comes from strength and seniority. Therefore, for Ye Zan, there is no need to worry about those things, and there is no need to think about how to convince these disciples. It can be said that whatever he says is whatever it is. As long as it is not something particularly shocking, none of these disciples dare to question it.
Ye Zan proposed temperature and linked temperature to power. Although it was not absolute, it was reasonable in some respects. Fire spells mainly cause damage to the enemy, at least for relatively elementary spells, which is burning damage. As for explosions, among the basic fire spells, there are really not many that can create explosion damage, or they only have limited explosion damage.
Let's just say that this most basic fireball technique, although it looks like a ball, is actually incorporeal. It can be said that it is just using the rules of magic to constrain a ball of flame into a ball. Therefore, when the fireball hits the enemy, due to the disappearance of the binding force, there will also be a small-scale explosion-like effect, but the damage of the explosion is extremely limited. In fact, such an explosion is just the spread of energy when the flame loses its restraint.
Of course, the explosion itself is a process or phenomenon in which energy instantly breaks through its constraints and is converted into other mechanical energy and spreads around. For example, firecrackers will explode only if they are tightly wrapped in paper and the gunpowder can generate enough energy. And if there is no package, just spread the gunpowder on the ground, and you can hear a "cluster" sound after lighting it.
Therefore, an important condition for explosion is that there must first be a small enough space with enough binding force to restrain the energy, so that the energy can quickly accumulate to a certain level. Just like a grenade in the technological world, if it were wrapped in a paper shell, it would be a large firecracker. But using metal as the outer shell can accumulate enough energy inside. Of course, another important function of using metal as the shell is that it can form fragments after the explosion, causing fragmentation damage to the enemy.
The binding force of the fireball technique obviously cannot reach the level of a metal shell. Moreover, even if it is made into a metal shell, the flames generated by the spell are simply not enough to break through the solid metal shell. That would really hit someone, or even slightly burn the opponent, but don't expect it to explode.
Another important condition for explosion, and it can also be said to be an essential condition, is that the volume expands violently in an instant. Why do firecrackers explode? It is because the gunpowder burns and instantly produces a large amount of gas, and the gas will generate great pressure under the constraints of the outer shell. The fireball technique is just a pure flame, and there will be no dramatic volume expansion unless something else is added to it.
Of course, there are spells with explosion damage in this world. Moreover, the principles of this type of spell are similar to those in the technological world, but the means of implementation are different. Basically, it is based on two conflicting spell energies, allowing the two energies to collide violently, resulting in an explosive effect. However, this kind of spell is often considered relatively advanced. After all, it requires the simultaneous manipulation of two spell energies, which at least people in the Foundation Establishment realm cannot do yet.
Of course, Ye Zan has also studied spells with explosive damage and made attempts to improve them. However, those things are not suitable to be taught to these foundation-building disciples now. The road must be walked step by step, and the food must be eaten one bite at a time.
But now, what Ye Zan wants to teach these inner disciples is the method to improve the fire spell from the perspective of temperature. Putting aside explosions, the main damage caused by fire spells is high-temperature burning. Naturally, the higher the temperature, the greater the damage.
Ye Zan talked about the elements of combustion, not much about the ignition temperature of combustibles. He mainly talked about the impact of combustibles and combustion-supporting substances on combustion, in other words, the impact on fire.
These disciples all know that fire will go out if it is suffocated, but no one has really explored why. They also knew that blowing wind would make a fire burn brighter, but they also didn't explore why. To them, these things are taken for granted, so why bother asking why
This is just a different way of thinking and a different focus. It does not mean that people in this world are stupid. You know, in the technological world, before the development of science, people did not know these things. Could it be said that those ancient people were stupider than those who came later? If it were not for those discoverers, most modern people might not be any better than the ancients. If no one proposed the heliocentric theory, no one proposed universal gravitation, no one proposed the existence of air pressure, etc., there would probably be no difference between people thousands of years later and people thousands of years ago.
In front of those disciples, Ye Zan did a small experiment, but he didn't mention oxygen. He only said that there was a kind of existence in the air, which was essential for combustion. This statement did not arouse resistance from the disciples. After all, they also knew that "wind" could enhance the intensity of fire. But then, another experiment conducted by Ye Zan, used to prove the combustion-supporting effect of oxygen, shocked all the disciples.
The experiment was very simple, that is, some pure oxygen was first extracted, and then Ye Zan took out a thin and thin iron bar, and asked everyone: "Do you think I just used ordinary oxygen without using magic?" Is it possible for the fire to ignite this iron bar?"
If Ye Zan uses magic, the disciples below will definitely answer "yes" without hesitation. Although in fact, even if the fireball technique is used by Yuanying Ancestor, the temperature of the fireball will not be that high. However, the Yuanying realm is already an extremely powerful existence for the disciples, so in their hearts, there is nothing that the Yuanying ancestor cannot do.
However, Ye Zan said that he was just using ordinary fire without using magic. In other words, when it comes to igniting iron bars, the cultivation of the Nascent Soul realm will hardly play any role, which makes those disciples hesitate.
"In other words, if any of you were to do it, would there be a way to ignite this iron bar?" Ye Zan added another condition, because he was afraid that his own cultivation would make those disciples have blind faith.
After hearing Ye Zan's additional conditions, the disciples finally stopped hesitating and said in a hurry: "Impossible, how can it be lit like that, unless it is placed in the furnace."
Seeing how cooperative the disciples were, Ye Zan finally nodded with satisfaction and said with a smile: "Then, the next step is to witness the miracle. Pay attention."
Following Ye Zan's words, the lecture hall fell silent instantly. Although the disciples were still full of disbelief, no one dared to whisper among themselves at this time. They all looked at Ye Zan's hand with bated breath.
Ye Zan tied a small wooden stick to one end of the iron bar, stretched it out to the fireball that had been floating next to him, and ignited the small wooden stick. Then he took the iron bar to the glass bottle containing oxygen, and slowly lifted the iron bar. He reached down from the mouth of the bottle.
The disciples looked at Ye Zan's actions with curiosity. When they saw that the thing used to start the fire was just a small stick, they were even more looking forward to the miracle that Ye Zan said. In their opinion, if Ye Zan used the fireball to directly hit the iron bar, it might be possible to ignite the iron bar. The small wooden stick with the big flames could light the iron bars on fire, but it really made them lose confidence.
However, as the iron bar penetrated the glass bottle, the ignited small wooden stick suddenly burst into flames. The large flame gave off an inconsistent light, and instantly burned to the iron bar tied to the wooden stick. Then, just when everyone thought the fire would go out, the iron bar suddenly emitted a dazzling light and spattered sparks, making it look like it was clearly on fire.
"Ah!" Almost everyone couldn't help but exclaimed when they saw this scene. In the world of science and technology, this experiment was done by junior high school students, but in this world it instantly shocked a bunch of adults. I am afraid that any junior high school student in the world of science and technology will say with disdain when they see this scene: Bah, they are a bunch of bumpkins who have never seen the world!
The flames on the iron bars burned fiercely, but they did not last long. After all, the oxygen in the glass bottle is limited and is not enough to keep the iron bar burning until it is finished. When the flames went out, Ye Zan took out the iron bar and said to everyone, "Did you see it?"
Although, the burning end of the iron bar just melted into an inconspicuous drop shape. However, these disciples have practiced at the Foundation Establishment Realm, and they can still clearly see the changes in the iron bars with their good eyesight. Originally, they suspected that Ye Zan had done something wrong, or that the iron bar was just glowing. However, seeing the drop-shaped iron beads after melting and condensation, no one can doubt whether the iron bar was ignited just now.
"It actually lit up!"
"Yes, the little flame caused by that little wooden stick actually ignited the iron!"
"This is incredible!"
Those disciples seemed to have forgotten their awe for Ye Zan for a while, and all expressed their surprise.
"Why can such a small flame ignite this iron bar? I just told you that the ignition point of this iron is not low, so this can show that with the help of this combustion aid, the temperature of the flame reaches The ignition point of iron. Now, you know how important this combustion aid is in the air around us." Ye Zan gave a summary of this little experiment.
In fact, according to the physical knowledge of the technological world, iron does not have a so-called ignition point. Therefore, Ye Zan is right to conduct this experiment, but if people in the technological world hear this summary, they may not be able to help laughing.
Of course Ye Zan also knew about this problem. The reason why he said this was just to let these disciples understand the importance of combustion aids. After all, these disciples are all cultivators. If you say that they say that this combustion aid is so important, why not let them see the impact of this combustion aid on spells? This can be regarded as inducement.
"So that's it. That burning thing actually has such a powerful power. We didn't know about it until today!" A disciple said as if he suddenly realized it.
"I always thought that using wind to help a fire simply makes the fire spread faster. I didn't expect that there was another reason behind it." Some disciples thought of more.
Ye Zan put away the iron bars and cleaned up the things used in the experiment. When the disciples' discussion gradually became quieter, he said again: "You have all seen the importance of combustion-supporting materials with your own eyes, so what is the significance of this? How can fire spells help?"
After hearing this, the disciples immediately stopped talking. Everyone looked at Ye Zan attentively, waiting for Ye Zan to give the answer. They now also know that what this Nascent Soul Ancestor came to tell them and others was probably about the improvement of spells.
This is too important to them. After all, with their level of cultivation, it is simply impossible to cast any powerful spell. And the power of elementary spells is really limited. So, if there is any way to increase the power of spells without increasing the expenditure of real energy, it would give them another trump card.