Tianfang still fantasizes about the kind of scene in it: a young man who admires Qingqing is jealous, comes out to block the road, and then starts a plot of pretending to be a pig and eating a tiger, but until the two return to the palace, no one jumped out, in fact, the news that the fairy palace is coming has long been spread, everyone knows that Qingqing is the emperor's female official, responsible for the reception, so there is no blind guy to come to do things, which makes Tianfang a little disappointed. What about the good routine?

In the next few days, Tianfang didn't go out, but took out a lot of things, poured a lot of jars of air back, there was that kind of wild atmosphere in the air here, get some air and go back to study and study, what is the reason. The conditions here are limited, and it is impossible to carry out large-scale experiments, so the sky is put into jars, and half of the storage ring is stacked.

The passing fairy palace personnel generally know what the young palace is mainly doing, just cover their mouths and secretly laugh, but the guards of the demon domain and the humans who live here all the year round don't think so, they are curious to look at the sky and can't help but take out something, they don't know what to do, until a bold maid asked the entourage of the fairy palace, only to know that this is loading air, this is spread ten, ten to hundred, everyone in the palace area knows that the young palace master of the fairy palace has not seen the world, and is poor, ran here to fill the air and go back。

The so-called good things don't go out, bad things spread thousands of miles, and the matter of putting the air in the sky soon came to Qingqing's ears after many tosses, Qingqing couldn't believe that the young palace master of the fairy palace would be so poor that he would pretend to be such an air to go back? There must be something inside. Therefore, Qingqing first suppressed the trend of intensifying rumors and visited her in person to find out.

......

"Ahaha, Qingqing girl turned out to be for this!" Tianfang listened to Qingqing's description, and felt interesting, but he still patiently explained to Qingqing, so as not to cause any misunderstanding: "I found that there is a wild aura in the air here, which is a little incompatible with spiritual power, so I plan to put some back and see if I can study what these wild breaths are!"

"Savage aura, oh, you're talking about brute aura!" Qingqing obviously knew what Tianfang was talking about: "This is a kind of aura unique to our Demon Beast Domain, which can speed up the pace of our evolution! It's a pity that the concentration of brute qi is getting lower and lower now, and there is not much effect anymore!"

"Brute gas, do you know the source of brute energy?" Tianfang did not give up the action of pretending to be brute qi, and continued to operate the compressed irrigation in his hand, constantly compressing the air into liquid and storing it.

Qingqing looked curious, how much air can be contained in such a one-person-high metal can, how can it feel that it has been filled for a long time, so she asked: "Hey, God, how much air is in your can, you have been in it for a long time, why is it not full? I blow him full with my mouth!"

Tianfang looked at Qingqing's cherry mouth, imagining the appearance of blowing air into the canister of the compressor, the picture was too beautiful, I didn't dare to imagine, and quickly explained: "Qingqing girl doesn't know anything, I'm called a compressor!

"Liquid," Qingqing wondered, "But there's no liquid here!"

"This involves a lot of knowledge!" Tianfang patiently explained: "Everyone knows that we are surrounded by gases, but we don't know that these gases around us can turn into liquids under certain conditions!"

"Oh?" Qingqing was even more puzzled: "Please explain!"

"Come on, come on, look here!" Tianfang pointed to the opening of the compressor: "This is the air inlet, through this fan, the air will be fanned into this square box! This square box has two functions, there is a mechanism inside, just like a plug, which can compress gas! There are also a lot of magic circles carved inside the square box, which can make the temperature inside very low, and after the gas enters, it can quickly become liquid, and then enter this tank through this pipe for storage!"

Qingqing, who didn't know the principle, just nodded his head, but his face was still cute, obviously he didn't understand it at all, but he heard that through such a box, he could turn gas into liquid.

Tianfang looked at Qingqing's cute appearance, and thought about it and explained it carefully to her.

"There are actually three states of matter around us, which are the gaseous state, the liquid state, and the solid state!" Tianfang said: "Take water as an example, when the temperature drops to a certain level, water can turn into ice, and when the temperature rises to a certain level, water can turn into water vapor!"

"Hey, I know this, the water freezes in winter, we occasionally boil the water, and after a long time, the water will boil dry, and it will become water vapor, right!" Qingqing understood this part, because she had personally experienced these things.

"Very good, this is easy to say, water freezes and water turns into water vapor, all due to the difference in temperature, and this temperature is actually constant in most cases (without considering gravity and air pressure)!" Tianfang took out a thermometer for testing, and then made a basin of water, and a magic circle for testing: "This is called a thermometer, you see that there is a scale on it, there are many numbers on it, here is zero degrees, here is minus 200 degrees, here is 3,000 degrees!" Oh, this degree is the way I made up the counting method myself, and for the sake of recording, it is the abbreviation of temperature! Now let's do the experiment!"

Tianfang replaced the compressor on the side with a new jar, and the filled jar hit the storage ring, and then pulled Qingqing to do the experiment: "First of all, it freezes, this water freezes at zero degrees, you look at this scale, when the red line inside is at zero, this basin of water will begin to freeze!"

"It's amazing, so that's the case?" Qingqing was the first time he had come into contact with this kind of scientific thing.

"The awesome thing is still to come, let's show you that the water turns into water vapor!" Tianfang operated the spirit array, and turned it into a heating array, I have to say, scientific things are completely zero in the Demon Beast Domain, Tianfang feels that a school should be opened here to teach everyone to learn basic scientific knowledge.

As the temperature increased, it soon reached 100 degrees, and Qingqing's eyes were sharp, because the spiritual power of Tianfang was not broken, but the temperature was not rising: "Hey, why hasn't the temperature risen?"

"Because the temperature of water becomes water vapor is 100 degrees, before the water is completely evaporated, the temperature here is 100 degrees, and it will not change......" Tianfang patiently explained the principle of thermodynamics to Qingqing, Qingqing listened to the clouds because he had no foundation at all.