With Xiang Tian's strength, with his school of mental strength, he can also refine the ore at room temperature without refining it with immortal fire, and the whole process consumes some mental energy at most. Pen × fun × Pavilion www. ｂｉｑｕｇｅ。 However, the molten iron that appeared in the furnaces had reached the melting point of the metal, but the fire supply channel was not found, which also made Xiang Tian a little curious.

Through inquiry, Xiang Tian learned that the original crystal bricks were the materials that provided energy, but instead of using them to provide heat energy, they concentrated all the fire in the lungs in Boyuan City and poured them into the crystal bricks, thus melting the ore in the furnace and greatly saving resources.

According to Chilu's previous words, Xiang Tian also knew that in the Chihuo Heavenly Domain, the most obvious thing was the high temperature. However, the people of Boyuan City used the fire of the earth's lungs to smelt ore. Let's not say that this idea is a bit whimsical, just talking about arranging the formation and concentrating all the earth lung fires in Boyuan City in one point, this is a big project.

For example, the smelting of metals on the earth basically relies on fossil fuels such as coal and oil, which are non-renewable resources, and smelting metals will also cause resource depletion. But if geothermal energy were used to replace these fossil fuels, it would greatly reduce the cost of smelting and slow down the greenhouse effect.

At the same time, part of the greenhouse effect is due to the heat released from the earth's surface, and once this heat is lost, then the earth will resist the greenhouse effect to the greatest extent and the pollution level will be reduced...... Ahem, it's a bit of a stretch.

In the smelting of ore in the Nine Heavens and Thirteen Domains, the monk will generally release real fire to refine the precious metals in the ore, which will also weaken the monk's own combat power. And since Boyuan City can use the fire of the earth lungs as an energy source, it will undoubtedly make more monks let go of their hands and feet and devote themselves to other things. From this point of view, the level of civilization in the Red Fire Heaven Domain can be seen to be average.

In addition to these huge melting pots, Xiang Tian also saw a lot of strange things, which was undoubtedly a great inspiration for him.

Although the Red Fire Heaven Domain is very famous, it is not too clear about some technological things, if you get the electromagnetic technology on the earth here, it will definitely discourage others!

Don't forget, Xiang Tian was a real college student before, and he was still engaged in the computer field, although he couldn't make such a thing as a computer, but he could use some rune prohibitions to imitate some unit templates of the computer to operate. These things are considered in the long run, and it is more reliable to find the person in charge now.

At this moment, Xiang Tian had already arrived at the designated location that Chilu had told him. I saw that this is a complex of buildings that stretches for hundreds of millions of miles, in addition to workshops for the production of daily necessities, martial arts arenas, and some woods, there are some barracks for the heavenly soldiers to live.

When he arrived here, Xiang Tian naturally couldn't walk in with a swagger like a stunned head, not to mention whether he would be arrested as a spy if he did this, just saying that the two teams of sergeants standing guard at the door were not something he could handle.

So, Xiang Tian came to the door and took out the letter of recommendation that Chilu gave him. When a sergeant at the door saw this, he looked at Xiang Tian with a little surprise, and led him inside.

Entering this complex, Xiang Tian realized that he had just taken a cursory look at it, and there were many gorgeous palaces inside, which were also mainly crimson, even though they were gorgeous, they were not abrupt.

The two of them walked all the way, although they were not three steps and one sentry, five steps and one post, but those dense heavenly soldiers made Xiang Tian's scalp a little numb. Along the way, he has encountered two or three hundred thousand heavenly soldiers head-on, and there are also five or six thousand people in the realm of white immortals, which are about the same as Xiang Tian's own strength.

After more than half an hour, Xiang Tian finally came to the gate of a palace under the leadership of the sergeant, who first explained his intention to the heavenly soldier guarding the palace gate, and then showed Chilu's letter of recommendation, and the heavenly soldier went in to report. When he came out again, he suddenly became enthusiastic:

"It's Xiang Tian who came, Zhenjun said, since Xiang Tian is here, then please go in directly!"

The appearance of this heavenly soldier not only made Xiang Tian a little inexplicable, but even the sergeant who brought him over looked at Xiang Tian with a look of surprise, and secretly said in his heart: "Be good, the heavenly soldiers who can guard here, which one is not a cronie of Lord Zhenjun, and he doesn't knock us with his eyes on weekdays." Isn't it just an immortal who has ascended from the Nether Realm now?, how can he let Lord Zhenjun be so courteous!?

Could it be that Xiang Tian is the illegitimate son of our Red Fire Heavenly Emperor, or the lover of the Big Dipper Dragon God? But since this kid can have such great ability, why do you have to behave in me, is it because he wants to pretend to be a pig and eat a tiger!

The sergeant's mind was open for a while, but Xiang Tian didn't know either. And even if Xiang Tian knew what this sergeant thought, eighty percent would cry and laugh.

He is just a small shrimp who has just soared, even if he has the support of the boss behind him, but with the character of the boss, he will not come to such a place to help take care of himself. If that old man really came here, maybe he would have to make some stumbling blocks for himself!

Although he thought so in his heart, Xiang Tian pretended to be flattered on the surface, and immediately followed the heavenly soldier into the palace together.

After walking through the palace, Xiang Tian first passed through a small courtyard full of purple bamboo, in the bamboo forest, there were a few purple fire phoenixes playing there, and there were a few elk running in the forest, which was in line with the word fairyland.

After passing through the small courtyard, Xiang Tian finally saw a man sitting on the Taishi's chair.

Although this person sat on the chair, it was difficult to hide his burly body, judging from Xiang Tian's many years of experience, this person should be about one zhang and three feet tall, and his red beard faintly exuded a kind of heat that was difficult to hide, as long as he looked at him casually, he could feel that his blood seemed to be burning.

Xiang Tian saw this person, and naturally knew that his strength was not low, at least he couldn't see his depth, so he hurriedly stepped forward at the moment, hugged his fists and saluted: "In the next Xiang Tian, I have seen an adult." ”

I didn't think that as soon as Xiang Tian's words fell, the red-bearded and red-haired man suddenly laughed, and without seeing him move, he suddenly appeared in front of Xiang Tian, grabbed his hand and said, "Xiang Daoyou doesn't need to be polite, I already know everything you did in the Nether." If you can understand the righteousness and save the souls of the eight planes from fire and water, you deserve the name of the savior!"

...... (To be continued.) )