Two was the first to raise their hands.

"Two, tell me about it. ”

Everyone looked at Number Two, who blushed and opened his mouth to say nothing.

"Don't be afraid, say what you think is, everything is with me. ”

No. 2 habitually straightened his chest, as if he had found some confidence, and said loudly, "Master Lin, I think it may be that the first-order elixir only needs seven hundred degrees. ”

"Yes, you're right, number two. ”

He was surprised, this is too smart.

"The first-order elixir, everything I know is within this range, if we want to become a Dan Master, it only takes a month, then we must save time and practice useful things. As for whether you will find more than in the future, that is after you become a Danshi. ”

"Now let's start practicing. ”

After another three days, Lin Dong stood up, "Very good, you can all control the temperature within one degree now, so it is enough to become a first-order Dan Master." ”

Now let's set a standard for the time, Lin Dong said solemnly, "Why set the time? Let's see what Dan Fang said, there are three breaths, two breaths, or one breath." ”

"Huh. Lin Dong smiled, "One breath is a breathing time, is it the same as the time you take a breath?"

Everyone tried, and Number One had the shortest breathing time, and Number Five had the longest breathing time.

"It's not the same. ”

"And what are the consequences of this difference?"

"That is, when purifying, the three-breath time of the fifth may be the four-breath time of the first. Hehe, you see. ”

Lin Dong took out an elixir, "Heavenly Herb, the elixir used in the Huiqi Dan Formula." The temperature of the chemical solution is between 170 and 173 degrees. ”

Throw the elixir onto the earth fire and refine it into a slightly white ball of spiritual liquid.

"This heavenly herb needs to be purified in the time of eight breaths in the earth fire, and I will purify it according to my eight own time with hand decision. ”

Only after six breaths, Lin Dong removed the medicinal liquid from the earth fire,

"Huh. Lin Dong smiled very happily, "Now I only use six breaths, if I have two more breaths, what will be the consequences?"

"The liquid medicine turned to ashes. "Everyone responded.

"And who among you is the eight-breath time?"

No. 1 raised his hand, "Master Lin, I am." ”

"That No. 1 can be purified successfully, and it is estimated that No. 5 will definitely fail. Then the fifth will think, I was wrong, and then I am still refining on the eight breaths, no way, Dan Fang said. And Danfang, which has been continuously verified for thousands of years, will not be wrong. ”

"This is a difference in alchemy talent, you are talented, because the time of one breath is the same as the time determined by the Danfang, the higher your chance of success. ”

"Danfang is written by a person, you don't know how the Danfang person breathes, how do you grasp this time?

Number Two raised his hand, "Set a time setting that anyone can understand, the same." ”

"Yes, exactly. I redivided the time into one second, sixty seconds as a minute, sixty as an hour, and two hours as an hour. Twelve hours is a day. ”

Five asked, "What about that second?"

"How about taking your breath as a second?" Lin Dong said with a smile.

No. 5 shook his head, "Back to Lin Shi, my breathing is not clear to others, and my breathing is not constant all the time, so I can't do it accurately." ”

"No. 5 is very self-aware. ”

"It's a headache for me too, and it's really hard to find this standard. In the end, I tried it in the Demon Slaying Domain and found a standard in the Demon Slaying Domain. ”

Feeling out a round ball with a metallic luster, Lin Dong raised his hand to a height and let go, "From the time I let go to the time the ball fell, it was one second." At such a height, basically the place in the Demon Slaying Domain is the same time. Even if there is a slight difference, it is not necessary to consider it in the first or second order. ”

"Oh. ”

I did it a few more times, and at the same height, there was no difference in the time it took for the ball to fall.

"It's a second, and you can have the standard of minutes, hours, and hours. ”

The apprentices remembered this induction, and No. 2 suddenly raised his hand excitedly, "Master Lin, I found one thing. ”

"Oh, tell me about it. ”

"According to Master Lin, twelve hours is exactly one day. ”

"Huh?" Lin Dong didn't expect it, he made a silent calculation, and it was true, from sunrise to sunrise the next day, it was really twelve hours.

"Damn, that's fine. ”

He didn't know if it was a coincidence or if this world was like this, so he could only smile incomprehensibly.

"Good, the number two did very well today. Learn from her. ”

Lin Dong took the lead in applauding, and the apprentices applauded enthusiastically.

Number Two triumphantly threw his hands around, shouting "Luck, luck." ”

Pressing his hand, the applause below gradually subsided, and No. 2 returned to stand expressionlessly, his chest was even more straight, as if he had the intention of deliberately demonstrating to Lin Dong.

Lin Dong, who had noticed it a long time ago, swallowed his saliva and coughed, "Now the most important thing in the first three steps of alchemy is these, let's learn the application of hand decision." ”

"Hand decision," Lin Dong's ten fingers of both hands changed repeatedly, and he moved eighteen sets of movements according to the eighteen methods of alchemy. "You know, the hand duel is born for better alchemy, except for the Hedan hand duel, which is determined to die, other techniques must be performed on the fly. ”

"No. 2," Lin Dong asked No. 2 after the cast, "You rely on your own imagination to guess what the different hands might be for?"

"Master Lin, it's the first time I've heard and seen a hand-to-hand duel. No. 2 said to Lin Dong a little coquettishly, the thin waist moved slightly, and his chest rolled again.

"Guess what. ”

"I guess it's for temperature regulation, isn't it. ”

"Well, very smart, just guess it. ”

"Alchemy is in the Dan furnace, which can prevent the entry of impurities from the earth fire, and it can also allow you to artificially adjust the temperature for a short time. ”

A Dan furnace jumped on top of the earth fire, and the earth fire suddenly erupted, enveloping the Dan furnace inside.

"The temperature of the earth fire is enough, but there will be deviations in the Dan furnace, and this is when the hand duel comes in handy. ”

A Di Dan fruit fell into the Dan furnace, "the earth fire is too big, the temperature in the Dan furnace is seven degrees higher, we use our hands to cool down, and at the same time reduce the temperature of the earth fire, at this time, we must pay attention to the time, the deep hand is faster, and the general hand is slower." ”

"However, we first adjust the temperature in the Dan furnace, then control the ground fire, and then adjust it with our hands, even if the ground fire is always unstable, there will generally be no problems. ”

The temperature in the Dan furnace always changed within one degree, and a ball of liquid medicine with spiritual light rolled in the Dan furnace.

With a finger of his hand, he put the liquid medicine into a jade bottle.

shook the jade bottle in his hand, "How is it, do you have the confidence to complete the first four steps tomorrow?"

"Yes. (To be continued.) )