"Cui Xiaoxiao! You explain to me why there was an explosion here, ahem. ”

Emiya looked at the messy laboratory, and his heart burned with anger.

Fortunately, the two zombies were protected by a vacuum chamber and were not damaged, but this ruin will also cost a lot of money to reorganize.

"Ah, that, that ......" Cui Xiaoxiao looked at him with an expression of wanting to eat people, and couldn't help but take a step back, "Ahhahahahaha, ahhahahahaha, in fact, I don't know." ”

"Cui, Xiao, Xiao!"

"Well, I was wrong, I just did a little physics experiment here."

"Tiny?"

"Well, in fact, I just want to do a simple energy test on the Water Shine Stone and Fire Shine Stone you bought."

"Energy detection?" Emiya looked at her suspiciously, although this person claimed to be a cosmic physicist from the twenty-third century, but there was no evidence to confirm this.

"You don't know, I made a very big discovery the other day." Cui Xiaoxiao's eyes flashed, "I realized the transformation of the attributes of the Water Yao Stone and the Fire Yao Stone through a communicator made of an absolutely stable substance. ”

"What the hell?"

"Actually, when I first discovered this phenomenon, I was also asking, what the hell." Cui Xiaoxiao's face was excited, "Because you accidentally used a tray of absolutely stable material to hold the Fire Stone, and not long after, it was transformed from a Fire Stone into a Water Stone. ”

This time, Wei Gong finally understood a rough idea.

The seven kinds of bright stones of gold, wood, water, fire, earth, light and darkness are the most basic substances purified in each department, and in this world, everything is composed of them, that is to say, what Cui Xiaoxiao discovered is the transformation process from one basic substance to another.

"What's so strange about that? I guess what kind of chemical reaction happened? ”

"You haven't heard me yet." Cui Xiaoxiao suppressed her excitement and said slowly, word by word, "Later, I found out that not long after, the Shui Yao Stone turned back into a Fire Yao Stone. ”

"So what I use to hold the Flame Stone is a catalyst?" Emiya pondered, "So what caused the change?" ”

In chemical reactions, some reactions can be carried out in both forward and negative ways, but they require a certain catalyst and a change in the reaction environment, such as temperature.

"If it's a simple catalyst, that's easy to explain." Cui Xiaoxiao clasped her hands and said coldly, "I specially tested it later, you know, I haven't changed anything." That is, without any change in the external environment, two substances with different properties are transformed. ”

"What's there? After all, they are equivalent in terms of energy. ”

What Wei Gong said is true, but this is only a theory accumulated through experience, no matter which department you cultivate immortals, how much essence or god you have, how much energy you can mobilize the corresponding attributes, no more, no less.

This is also the reason why the seven series are very balanced in the world of fairy swords.

Cui Xiaoxiao, an outsider, definitely couldn't know this, even if it was herself, it took a long time to comprehend it.

Seeing Wei Gong's disdainful face, Cui Xiaoxiao felt anxious in her heart.

"Hey, it's really ......"

Cui Xiaoxiao let out a sigh and placed two thumb-sized water, fire, and yao stones into Wei Gong's hands.

"Do you feel it?"

"What?"

"Temperature."

"Well, the water stone is cold, and the fire stone is hot."

"You know, in the definition of physics, to be precise, there is no such thing as temperature, it is just a standard used to measure the intensity of the thermal movement of molecules."

"So what?" Emiya was confused.

"Do you know the second law of thermodynamics?"

"The Second Law of Thermodynamics......" Emiya raised his head, thought carefully for a moment, and then widened his eyes.

"Oh my God, you mean ......"

"Yes, it is impossible to transfer heat from a cold object to a hot object without other effects." Cui Xiaoxiao frowned, "It turns out that this attribute conversion experiment violates this law. ”

Hold the grass, so Clausius's coffin board is going to be unpressable?

Wei Gong trembled in his heart, but compared to him, Cui Xiaoxiao would be hit harder.

"However, one thing is comforting is that I have found that the first law of thermodynamics still seems to apply in this world."

"Is there a law of conservation of energy?"

Emiya wondered, wouldn't that look like the setting of steel?

Cui Xiaoxiao found a black stone from the messy ruins on the side, and then handed it to Wei Gong's hand.

"You try, see if you can transform two stones with different attributes at once?"

"Such a rash ......"

General Wei took this thing with suspicion.

"If you want to change—"

She raised her head, looked into Emiya's eyes, and said the following words very reluctantly:

"I'm just watching from the sidelines, just thinking about what would happen if this Water Shine Stone would turn into a Fire Shine Stone."

"Hmm...... In this way, is it a change in mental power? ”

The corners of Cui Xiaoxiao's mouth twitched, it was this kind of mental power, which she couldn't accept at all.

"But where does the energy generated by the mind come from, and why can't we see it?"

"This ...... If I knew, I wouldn't have been here for so long. ”

Wei Gong urged with his mind, only to feel a tremor from the stone in his hand, and then the fire stone turned into a water stone.

He pushed it in the opposite direction again, and sure enough, it changed again.

"I'll call this a universal catalyst." Cui Xiaoxiao smiled, "However, I won't admit that there is such a thing as mental power, I have to find a way to find out the principle." ”

Emiya looked down at this thing, is it a universal catalyst? Where does this come from?

It was at this moment that the prompt sound of the system sounded in his head—"The Celestial Source Stone, which is synthesized from the reaction of seven basic Yaoshi, is an immortal-grade material. ”

Hehe......

Seeing this, Emiya already understood a little about the explosion that occurred in the laboratory.

"It turns out that if the seven kinds of stones are placed together, over a long period of time or through fluctuations, they will produce an explosion, and then this kind of thing will be generated." Wei Gong walked to the ruins and picked up a few more Celestial Source Stones.

"I see." Cui Xiaoxiao finally suddenly realized, "Then I can't carry this pot, because you stacked it up yourself." ”

"Huh."

"But, thanks to you, I've got a new material." Emiya smiled, "Perhaps, it's not bad just to be a universal catalyst." ”

Cui Xiaoxiao raised her head and looked at him happily.

But the smile flickered, and immediately stiffened on the face.

From her eyes, Emiya saw the figure of a stranger.

"Who?"

Emiya turned around alertly.

If the other party can approach him quietly, then it can only say one thing-

This man's strength is above him.

……