"The sandwich is delicious."

Claire felt the rich flavor of gravy between lips and teeth, and the taste enjoyment brought by the fresh vegetable mixture, and couldn't help making a pleasant sound.

As a result, she still succumbed to the attractive aroma, asked Lena for a sandwich, and then immediately immersed in the wonderful food, unable to extricate herself.

But soon, Claire noticed the deep look in Lena's eyes, and immediately turned away and said it in a vague tone.

"Don't get me wrong, I just want to learn how to make this sandwich, so...

when Lena heard Claire's lame explanation, he laughed and didn't tear it down. He turned to Charlotte.

"What do you think of that paper, Charlotte?"

When Charlotte heard Lena call her name, she raised her head. She was still holding Lena's paper in her hand. After thinking for a moment, the girl answered.

"The point of view stated in the paper is very clear, and the relevant proof is also very comprehensive. To be honest, I can't believe that the experiment in this paper is the one I did before."

After a pause, the girl continued.

"However, I don't quite understand one thing, that is, when I turn the paper upside down, Charlotte points to one of the pages, and the title here says," before that, Charlotte didn't consider what would happen to the mass of the object before and after the experiment, and didn't understand the value of this discussion.

Because in her concept, it seems reasonable that the quality should not change, but after Lena's mention, Charlotte realized that there seems to be another mystery.

"Why does the total mass of products before and after the reaction do not change when one substance changes into another substance after combustion, and from this experiment, it seems that the mass is transferred from limestone to dolomite and this special gas. What method does this depend on?"

Listening to Charlotte's question, Lena nodded slightly.

This girl is really good at alchemy. She realized the problem so quickly.

"Do you mean there is a carrier for quality?"

What Lena said surprised Claire.

In master Hohenheim's Alchemy theory, mass is the inherent attribute of an object, which shows the amount of elements contained in the object. In his view, elements have a unified mass. The more elements contained in an object, the greater the mass. The mass of an object per unit volume is called density.

For example, rocks and metals have different densities because of the amount of soil elements. In a unit volume, there are more soil elements that make up iron, but less soil elements that make up rocks. This is the fundamental difference between the two as different materials.

But in Lehner's paper experiment, part of the quality of limestone obviously goes to the special gas, which seems to involve the transformation of elements. After all, according to common sense, soil elements should be heavy and stable, which is quite different from the flowing and light wind elements.

But master hornheim has long asserted that the four basic elements are the most basic form of an object, and they can not be transformed into each other. All other substances are condensed by the four basic elements.

If we can really find a way to transform elements into each other, it will be a great discovery.

Even if running water can be turned into steam after being heated, the mages have long known that those are not real gases, but just small drops of water that cannot be observed by the naked eye. No one has been able to realize the real transformation of elements.

So, what kind of special gas is the new material mixed with earth element and wind element?

That's strange.

It's because Leiner's argument seems to say that the basic elements are not really "basic", and they can be further subdivided, which completely violates the current alchemy theory.

Charlotte shook her head slightly as Claire fell into thought.

"I don't know. Relying on this experiment alone, I don't think I can find decisive evidence yet."

In the final analysis, in the experiment of limestone heating to produce white rock, the material has not been completely transformed, and there is no something more out of thin air. In the case of no clear gas composition, it can not be said that the special gas must have escaped from limestone, they need more direct evidence.

Alchemy has always been a subject based on experiments. Any theory may be overthrown by special experiments. On the contrary, if it cannot be reproduced by experiments, then all conjectures are meaningless.

"I also think that perhaps the four basic elements are not the most basic substances. For example, water may be a combination of some substances. Of course, these are conjectures. I may find an opportunity to do some experiments to verify them recently."

Lena pretends to be helpless and says that although he has 10000 ways to prove that water is actually a compound, it seems too ostentatious to put it forward so rashly. After all, the first paper can be said to have been inspired by Charlotte's experiment, and the second subversive paper will be doubted if it is put forward so soon.

He also needs to wait for his paper to ferment in the academic circles. Everyone starts to change their ideas before proceeding step by step. Although there may be accidents, for example, a certain academic magnate breaks down the water by relying on Lena's paper to inspire inspiration, it is better than Lena being caught and sliced for research."Mr. President, do you already have an idea?"

Charlotte was a little surprised. These questions they didn't even dare to think about in the past. Now this seemingly cynical headmaster has already begun to think about whether he is gifted or crazy?

"I haven't got a clue yet, but I have a general direction."

Lena decided to stop this topic. This first paper has not been published yet, so don't think about things in the long run.

"Let's not mention that, Mr. Claire. I need to leave school tomorrow. You come with me."

"Ah?"

Clare had not recovered from the discussion. When he heard Lena call his name, he hesitated to reply.

"Go, where?"

"I said before, we need to find an alchemy workshop that can produce coke."

Asked Lena, looking at Claire with a caring eye.

"Well, I, of course I remember. I mean, where are we going to find the alchemist?"

Clare hastily disguised that the embarrassment was somewhat pitiful.

"Right here."

Pointing to a brief map spread out on the table, Lena smiles.

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