Returning from the studio, Kaichi returned to his study, spread out his pen and paper and began to write.

Although he was in exile for half a year, he did not relax his research on magic, especially thermodynamics, because he was thinking about how to come back.

"The Forms of the Main Equations of the Thermal Theory of Mechanics in a Convenient Application" is the title of his new paper, in which he has already proposed the second law of thermodynamics when calculating absolute zero, which at that time was simply stated as "it is impossible to transfer heat from a cold object to a high temperature object without causing other changes", and described it completely from the aspect of heat.

The irreversible processes include heat conduction, work-heat conversion, and diffusion, which can be summarized by the concept of entropy, that is, the irreversible processes that occur in the adiabatic system can only be carried out in the direction of entropy increase. Because the isolated system must meet the adiabatic condition, and the spontaneous process is irreversible, the spontaneous process of the isolated system always increases the entropy of the system.

Entropy is a measure of the degree of chaos in the system, and is a function of the state of matter, and when the state is constant, the entropy value of matter is also constant. It can be said that the change in entropy is only related to the beginning and end states of matter.

dS>=δQ/T, Kaichi wrote the formula on the manuscript paper, and wrote at the end, "The energy in the entire universe is constant", and "the entropy of the universe tends to be the maximum", the greater the entropy of the system, the closer it is to the equilibrium state, although the total amount of energy remains the same, but the energy available for use or transformation is less and less. The closer the entropy of the universe is to a certain maximum limit, the less likely it is to change, and the universe will always be in a state of inert silence.

After the papers were sorted out, he was ready to send them to the Wizard journal, and the United Chamber of Commerce had launched a mail delivery service, so he didn't have to go to the Supreme Council or the Mage Guild to deliver them in person, he only needed to wrap the papers, stamp them with the mage key, and deliver them to the nearest mailbox.

Deliveries over long distances are slow, but they are fast in Mochathner, especially for mage letters.

After sending her dissertation, Jia began to research the printing of magic circuits.

Moshacher is very rich in materials, almost all materials can be bought, especially now that the United Chamber of Commerce has relationships with multiple chambers of commerce, and the procurement channels are more abundant, so more materials have been found for Jiayi.

The blood of the Demon Beast is the most abundant, he even bought a bottle of the blood of the two-headed dragon, he can't buy the real dragon blood, the blood of the two-headed dragon is one of the best alternative materials, the alternative material of the Demon Grass is more difficult to find, but he also found the Styx Flower as a replacement.

It's just that the effect of the experiment is indescribable, and he has verified dozens of collocations of 5 or 6 materials in a row, but none of them have succeeded.

......

Jiayi's paper was sent in duplicate to The Witcher magazine and the Supreme Council, which soon entered the review stage and the paper reached Baldwin's hands.

Baldwin looked at the paper handed in by the person below: "Is there anything wrong with this paper? It's just a step forward on the theory he came up with and a summary." But the concept of entropy is somewhat interesting, representing the degree of chaos of the object, and the higher the temperature, the more chaotic it is?"

This doesn't really represent entropy, but it's easier to understand.

The higher the temperature and the faster the molecular movement, the more chaotic it is, but there is nothing wrong with it.

The mage who handed him the paper said, "You see, in the end, he came up with the idea that the universe is slowly increasing and not decreasing, and that it will eventually approach the maximum of entropy, and the universe will fall into a dead silence. ”

Baldwin carefully looked at the part that the other party had just pointed out, although what Jia Yi said was not very straightforward, but according to this statement, it was saying that the universe would eventually be destroyed and inevitable.

"I didn't expect that Jiayi would agree with the end times. Baldwin's brows furrowed for a moment, the end times are generally things that only exist in religion, God creates the world, God destroys the world, and the mage rarely believes this, he didn't expect that he would see a paper that provides a theoretical basis for the end times.

"Shall we pass?"

Baldwin thought for a moment and said, "Let's pass it normally, his theory doesn't see anything wrong, and we can't just reject it." I will inform your Excellency on duty to see what you have to say. ”

Wilmot, who was on duty, didn't have any opinions, just copied a copy to Magnay, and let the paper pass. The heat death theory, while not so pleasant, does not affect the importance of entropy.

......

With a loud "boom~", Winnie felt the whole house tremble, and he hurriedly came to the door of the laboratory, and saw Jia Yi coming out of the laboratory.

"How's it going?"

As she spoke, she looked at the laboratory, only to see that the laboratory was in a mess, the tables were blown apart, and the ground was sprinkled with cinnabar mud, which looked like a large piece of blood was spilled on the ground. However, there was no trace of the explosion on Jiayi's body, and he used a shield to protect himself before the experiment, and the explosion did not cause him any damage.

Jia Yi sighed: "It's not ideal, you can help me clean up below, I'll rest for a while, what's wrong with this." ”

He muttered, puzzled on his face.

Winnie looked at the laboratory, turned back to Jia Yi and whispered, "Boss, do you want to go outside for the next experiment?" The explosion of your experiment is getting bigger and bigger, I'm afraid our house can't bear it. ”

After saying that, she hurriedly left, trotted to the utility room, got a broom and rag, and went down to the laboratory.

Kaichi glared at her, shook his head and went out to bask in the sun.

Winnie stood at the door of the laboratory and turned around and said, "Boss, your paper is published, and it's on the desk in the study, what is it written on it?

"The mess in my lab is an increase in entropy. ”

When he came to the study, Winnie had already flipped to the page of his paper, and he picked it up and looked at it, which he had written himself, and there was nothing more familiar here than himself.

After one glance, he put down his magazine and went out. He was going to go to the studio to see how Fessenden was doing.

By the way, he also moved his experiments to their studio, and he is also the majority shareholder of the studio. Winnie was right, and if the underground laboratory at home continued to explode, the foundation of his house would be unstable.

......

......

The western area of Moshacher Pier, which is almost the most remote and chaotic place in Moshacher, where the hard laborers, thieves, warblers, and all kinds of people are mixed here, even the city hall does not know how many people there are here, and roles such as sheriffs rarely appear here, this is almost the slum of Moshacher.

In a house in the west area of the dock, two mages, one tall and one thin, stood in front of a hooded man, and the tall mage said, "Messenger, Jiayi is back. ”

"He's finally back, it's been almost a year, and this time, we must not let him run away. The messenger's tone revealed a lot of bitterness.

Nearly a year ago, he came to Moshacher with orders from the High Priest of the Doomsday Cult and a powerful curse item. The god who claimed to be able to make Jia Yi die was unaware, but he didn't think that as soon as he arrived, Jia Yi went to Moshacher, and he went for nearly a year - they didn't know that Jia Yi had fallen into the small world, and they thought that Jia Yi had been staying on Elf Island until now.

The Moshacher envoy has always been scared, afraid to go out at will, afraid of being discovered, changed several places, and finally came to the west of the docks, where the chaotic environment made him feel more secure, but it was not very comfortable to live, and he could always smell the smell of sewage and the smell of Xiaobian when he slept.

Unlike the tall and thin mages, they have almost integrated into Moshacher's mage group with the help of the Three Kingdoms Kill card, and the living environment is much better than that of the messengers.

"How did you know he was back?"

The emissary's tone was not very friendly, perhaps because the tall and thin mages had driven him out of their dwelling.

"We've been keeping an eye on him and recently finally found out he's back, and he's also published a paper. ”

As he spoke, he handed a magazine to the messenger.

In fact, they only found out that Jiayi had come back after he had published the paper, and if it weren't for the fear that the envoy would find out that the two of them were fishing after seeing the paper, they would definitely not have come to inform the envoy.