What comes from Teacher Claire is doubt, while what comes from Xia Luo is surprised.

"Principal Ian Gray, are you serious?"

Teacher Claire first asked, in her perception, this useless principal is hard to magic, never cared about academic matters, and even more so he doesn't care about students' learning issues. Now that he suddenly said such words, is he trying to be happy with himself?

To be honest, Teacher Claire didn't think Reiner could understand any word on the test paper, so she seemed very impatient. She had never had a few dealings with Reiner, and she couldn't tell that the principal's soul in front of her had already become another person.

"Teacher Claire, I think we should be more tolerant of students and should not deny her ideas with that tough attitude. At least, she thought, didn't she?"

Reiner's eyes swept across the other test papers on the table, and he could see that the answers to that question were exactly the same. It was obvious that he had memorized the description in the book.

To be honest, he was still in a trance of time travel, but as a teacher's sense of responsibility prevented him from losing the desire for knowledge just like this. Reiner himself also had a lot of curiosity about the magic of this world. Therefore, under the influence of various reasons, he decided to find out whether Xia Luo's statement was correct and how much of his knowledge on the earth could be applied to this world.

"But her thinking is completely wrong. The Fire Element Theory is a great theory discovered by Master Hornheim three hundred years ago and is the cornerstone of modern alchemy. I don't think a mage apprentice can overturn this theory so simply."

Teacher Claire was stunned by Reiner's words, and then refuted, but his attitude softened. Perhaps he felt that there was a little reason in Reiner's words.

“If religion originates from faith, then magic begins with doubt.”

Reiner changed what he had heard in his previous life and continued.

"Why don't we listen to how she came to this conclusion before denying Xia Luo?"

When Xia Luo heard Reiner's words, he lit up his eyes and looked at the principal who seemed unreliable.

Although the principal Ian Grey had a bad reputation, at least he was willing to listen to his own explanation rather than denying it like Teacher Claire. From this point of view, Reiner's reputation has increased by at least ten points from Xia Luo.

Of course, the full score is one hundred points.

"Okay, then Xia Luo, tell me."

Teacher Claire shrugged helplessly and signaled Xia Luo to explain.

"Well, I first discovered that this possibility was an experimental mistake."

Xia Luo thought for a moment before organizing the language before speaking.

"I originally wanted to heat limestone at high temperature to get white rock. Usually, this experiment should use a non-enclosed container, but I got it wrong at that time and used a closed flask."

Reiner didn't understand what limestone was or what white rock was. Seeing his puzzled expression, Teacher Claire sighed and explained.

"Limestone is a rock that can be seen everywhere, while white rock is a special kind of stone that can be dissolved into water."

As she said, she lamented why she wanted to listen to Xia Luo's explanation seriously with the principal. Teacher Claire felt that she had been fooled.

When Reiner heard this explanation, he quickly understood that the so-called limestone and white rock should be limestone and quicklime. This reaction is the basic experiment of junior high school chemistry. The reaction of gases, carbon dioxide and clarified lime water generated in the experiment is also one of the most classic enlightenment experiments.

"After heating, I found that some kind of gas seemed to appear in the flask, and when it was exported with a conduit, the flame of the alcohol lamp was extinguished."

Xia Luo explained in a concise manner, looking at Reiner and Claire from time to time, paying attention to their expressions.

"This is impossible according to the theory of the fire element."

Reiner then opened an alchemy book by the table and found the chapter on the fire element along the catalog.

"The element of fire exists in everything. When matter burns, the element of fire is released to produce flames. If matter loses the element of fire, it becomes dead ashes. When the ashes obtain the element of fire, the matter will be resurrected. The specific process of combustion can be simply expressed as: matter (burning) = fire element + ashes.

——"Introduction to Alchemy", Chapter 3, Section 1, by R.V. Hornheim, Third Edition of Cang Calendar in 2036."

In this description, no sentence mentions that gas will be generated during combustion. So what exactly is this gas that can extinguish the flame and where does it come from?

Of course, Reiner could tell Xia Luo that the gas is carbon dioxide, limestone, that is, the compound produced by the reaction of carbon elements in calcium carbonate with oxygen in the air, but if they say this directly, they would definitely not believe it. Reiner also needs more arguments to prove that the carbon dioxide in this world is the same substance on the earth.

"Why don't we go to the laboratory to reproduce this experiment?"

Reiner's opinion made Xia Luo's eyes slightly widen. She originally thought Reiner just wanted to fight against Teacher Claire, but she didn't expect that the principal actually believed in her, which made the girl feel a little incredible.

"experiment?"

Teacher Claire was obviously even more surprised. She looked Reiner up and down with a look of looking at the madman and confirmed.

"The experiment you are talking about is an alchemy experiment?"

She didn't even know whether Reiner knew the meaning of the word experiment. In Teacher Claire's impression since she was a child, the nobles were all ignorant guys, especially when she was five years old, she was bullied and cried several times by an unknown little nobleman. This impression became deeply rooted and could not be changed.

"Of course, Mr. Claire, what do you think I'm talking about?"

Reiner's attitude was taken for granted, which made Teacher Claire feel a little unhappy, as if he was the uneducated one.

"We reproduce the experiment described by Xia Luo completely. If we can get the same result, can we show that her conclusion has some truth?"

"Impossible. If the theory of burning fire element is wrong, then all alchemy papers have to be rewritten over the past three hundred years, but we have accomplished so many great achievements on this basis. Do you want to deny the contributions of those great mages?"

Teacher Claire's tough attitude made Reiner feel a little headache.

This guy is too stubborn.

Reiner thought about it. This kind of guy with iron heads might not work on the front, so he had to detour.

"Teacher Claire, are you afraid that Xia Luo will prove his conclusion correct?"

He used the provocation method, which made Teacher Claire jump up immediately.

"Who said that I won't be afraid. The three hundred years old alchemists standing behind me!"

The effect is outstanding.

As soon as she said that, Teacher Claire knew that she had been plotted by Reiner, but then she thought that this was an opportunity to punish the unreliable principal, so she said.

"But if it is proven later that the fire element theory is correct, you have to pay the price."

"Uh, of course, what do you want me to do?"

Reiner didn't expect this woman to be so straightforward, so she was stunned before asking back.

"Well, why not... at next week's morning meeting, put on your skirt and run around the square for ten laps!"
Chapter completed!