After resting for two days after returning from Heihe City, Wu Hao could clearly feel that there were fewer idle dancers in Qinghe City, and basically they all went to chase the Spirit Sky Beast, or some of them knew that they would definitely not get it, after all, there was only one Spirit Sky Beast, but there were so many people chasing it, and it couldn't fall on themselves, and some people went to Dragon Tooth City and wanted to go to the Dragon Tooth Old Man to build weapons, after all, the Dragon Tooth Old Man couldn't run, although he only had one, but she could build many, many weapons.

Qinghe City was a little more deserted than usual, but the academy was still lively.

It's just that there are only two people in this class led by Qingyin, one is 1 Wu Hao, and the other is Ling Fei'er.

However, Qingyin has issued a summoning order to let everyone come back, the problem is that some people are very, very far away, and it will take a long time to come back, and Qingyin has also said that they don't necessarily need to come back immediately, so many people don't use the card that Qingyin gave them, but go back slowly.

In the classroom, it was very easy to teach the two of them alone, Qingyin was even a little crying and laughing, they practiced together at home, and now when they arrived at the academy, they still taught their husbands and their sisters, and this feeling made her smile with a playful smile throughout the whole process.

Wu Hao and Ling Fei'er also felt a little funny, there were only two of them in the entire playground in the huge classroom, this feeling was still a little strange, after all, this was in the academy not at home, if it was at home, of course it was normal, but in the academy, there were only two people, and it still felt a little strange.

"Ahem, okay, okay, don't think so much, hurry up, I'll teach you a new skill. Qingyin adjusted his state, anyway, it's just the two of them now, especially Wu Hao, he really hasn't learned many new skills, so let's hurry up and teach him more skills.

"Come on, what the hell is the new skill?"

"I'll teach you the same mid-level skill, Ice Purgatory. ”

At the beginning of the formal teaching, Qingyin's face finally put away a smile and looked at them seriously.

"Ice Purgatory is a skill that uses the power of the Netherworld to create ice and cold space, the direct lethality is not as good as the money from the Netherfire, but the indirect lethality and the range of damage far exceed the Netherfire. ”

As Qingyin spoke, a cloud of cold air appeared in his hand, pressing the cold air to the ground, and the surrounding area of his body was immediately frozen, and the grass on the grass instantly turned into extremely hard ice, and it all shattered with a light touch.

"Interesting. ”

Wu Hao came to be interested.

"This skill is difficult to say, easy to say, of course, I mean for other people, for the two of you, especially for your husband, you must be a very, very simple skill, with your ability to comprehend this skill, I think it should be a matter of a while. Qingyin smiled slightly, and then said: "The form of Ice Purgatory and Netherfire is actually a bit similar, but it is completely opposite, using Agni requires the use of aura molecules to carry out a strong collision to raise the temperature, and the Ice Purgatory requires the complete opposite, to make all the contact molecules completely stop, the more static it is, the lower the temperature, the lower the temperature, the stronger the effect of Ice Purgatory." ”

"It turned out to be this principle. Wu Hao nodded immediately, already understanding the reason for the occurrence of the Ice Purgatory.

All temperatures are generated by molecular motion, the stronger the molecular motion, the higher the temperature of any object, on the contrary, if these molecular movements are weaker, then the temperature will be lower, all this is the same in any universe, when the molecular motion completely stops, then all life will stop disappearing, and the same temperature will be reduced to the minimum, Ice Purgatory uses this principle.

Wu Hao didn't wait for Qingyin to say something, immediately sat cross-legged, closed his eyes, and first felt the existence of those powers, the movement of those small molecules was very intense, which could maintain the normal living temperature of this world, but after feeling it, if you want to make them still, you only need a strong mind to support it, and it is inevitable to use your mind to fight against the movement of these molecules, so Wu Hao first released his mind to control these molecules, so that they slowed down little by little, the temperature of his palms gradually decreased, and slowly a cold air came out。

Qingyin looked at him in surprise, he didn't expect that before he could teach him the method, he had already comprehended the essentials of this skill in an instant, and released the Ice Purgatory so quickly.

Theoretically speaking, it is much more difficult to make a force molecule stand still than to speed up a force molecule, because the acceleration of a force molecule can be carried out in more ways, but the stationary operation of a force molecule can only be carried out completely by the mind, and it is impossible to replace the most powerful mind manipulation ability with any other ingenious way, otherwise it is impossible to complete this thing.

Although Meimei was surprised by him, every time she saw him cultivate a new skill, she would always be surprised by his divine tree, Qingyin looked at the cold air gradually rising in his hands, and smiled happily with emotion.

After all, it's his own man who is amazing, and of course he is even happier.

Seeing that he had mastered this skill in an instant, Qingyin focused on Ling Fei'er, this girl hadn't mastered it yet, so she simply taught it one-on-one.

Wu Hao closed his eyes and felt the rhythm of all the power molecules gradually slowing down in his hands.

According to this principle, the higher the degree of prohibition, the colder it gets, the higher the level of this ice purgatory, and the greater the lethality, but in the same way, if you want to completely ban the power molecules, the stronger the intention that needs to be consumed, but on the contrary, when all the molecules completely stop moving, then it will cause ice purgatory in the true sense, which is even more terrifying than what Qingyin just showed.

The Ice Purgatory that Qingyin just showed, although it has reached a level that can cause very terrifying damage, but Wu Hao can feel that the molecular structure has not completely stopped, that is, it only keeps the rest in a relative state, and the power molecules inside still maintain a relatively slow movement, only reaching a lower temperature, but not reaching a real absolute low temperature.

It is only when the molecules completely stop moving that true absolute zero occurs.

In the state of absolute zero, the molecular motion will really stop completely, not the other way around, only the single molecular motion will completely stop, and the temperature will reach the real absolute zero.

But it is extremely extremely difficult, even so difficult that it is impossible to complete, so this ice purgatory is essentially just lowering the temperature, making the temperature very, very low, and not reaching true absolute zero.

Is there a way to get the temperature to true absolute zero?