Although it is said that I will be outside and wander around as I please.
But Zhang Yang was still quite worried. He was hiding in the cave alone, staring at him with big eyes and small eyes, which was very heartbreaking.
If it weren’t for the law of true fragrance—
Well, once a man says his word, eight horses can't pull him back.
After re-building himself mentally, Zhang Yang went straight to the deepest part of the cave. As the saying goes, out of sight, out of mind, if he wanted to retreat, he would really go into retreat.
"Ugh, that stinks!"
A few seconds later, Zhang Yang rushed out of the cave as if he was running away. After all, he was not a real person who could not live without grain or breath.
"Don't look at me, I'm going to find a place where I can truly retreat!"
Zhang Yang walked away angrily. He kept his word and said he would not interfere, so he would not interfere!
There are stone walls and cliffs on one side of this valley, so it shouldn't be difficult to find a cave, where he will think about how to improve and optimize the mana structure.
Half an hour later, Zhang Yang walked back helplessly, because there was only such a cave in the valley, and it was such a high-quality cave. It was more than fifty meters deep and had winding paths, but it was too smelly.
"You primitive people are cruel, no, you Neanderthals are cruel!"
With a vicious curse in his heart, Zhang Yang didn't look at Wu Yuan's inquiring eyes, "Don't get close to me, I'm just air now."
After working hard for most of the day, he finally cleaned up the inside of the cave. At this time, he felt that he had become a piece of stinky meat. Originally, he could command other members of the Guada tribe about this kind of thing, but Zhang Yang did what he said. Now, everything depends on Wu Yuan himself. He won't help, won't interfere, and won't hold anything back.
During this period, Zhang Yang even personally hunted and killed an ordinary ferocious beast, and he wouldn't even share the food.
When he set up a small fire in the deepest part of the cave, the thick smoke billowing from nowhere reminded him of something.
"Let me guess, I can burn trees into charcoal! The flame generated by simple wood burning is not a complete high-temperature plasma state. Even the outer flame that has the most complete contact with oxygen has a temperature of only five or six hundred degrees. , but if it is replaced by charcoal, it can easily refine steel, with a maximum temperature of over 1,000 degrees!"
"Wait, let me think about it, what did they say in chemistry class? When charcoal burns, it seems that it is not a flame, but a kind of light, right, because the essence of flame is a kind of flammable gas, including High-temperature steam and various solid small particles undergo oxidation reactions when exposed to air, and then light and heat appear, which means they become plasma—"
"I used the compressed soul force field to form a second closed-circuit circle, and then formed a curved force field. The flames absorbed by it are not as scary or mysterious as ordinary people think. It is just a gas that cannot be fully burned."
"So what I want to understand now is, can the light emitted by the burning charcoal, that is, the heat it emits, be sucked into the second closed circle instead of the flame? After all, heat can only be a process quantity, and it has nothing to do with the properties of the flame. The difference is that flame is tangible and heat is intangible.”
Zhang Yang fell into deep thought, and then smiled for a long time,
"Thinking like this is just over the top. I'm not a theorist. You'll know the details once you try it!"
Zhang Yang started making charcoal with great interest. Fortunately, even if he was a scumbag, he still knew some methods of making charcoal. He buried the almost burned wood directly with ashes to isolate the air, and what was left was almost It's charcoal, but of course the quality is definitely not as good as professionally fired ones.
This busy time lasted for two whole days.
During this period of time, Zhang Yang always insisted on his promise not to interfere in any of Wu Yuan's decisions. He even drove Wu Yuan away when he came to report to him!
Of course, Wu Yuan only came to see him once. If he came a few more times, Zhang Yang might break his promise.
In the past two days, Zhang Yang burned about 500 kilograms of charcoal. Let’s not talk about the quality. During the charcoal burning process, he combined the bits of knowledge he had learned in the past and could still remember with his soul. He really discovered a lot of interesting things about the force field, which made him full of confidence in the next experiment.
On the third day, which was also the fourth day of the Hero Trial, Wu Yuan went out with fifteen warriors from the Guada tribe before Zhang Yang could start the experiment. He didn’t inform him before leaving, and even Zhang Yang didn’t know. What on earth was Wu Yuan going to do
It is impossible to say that Zhang Yang is not worried or regretful at this moment. He is afraid that the next moment there will be news that he failed the hero trial and that he was wiped out. Oh, no, can there be news after being wiped out? Just burp your farts.
He circled around like an ant on a hot pot for several times. Finally, Zhang Yang yelled and left it alone. He chose to believe in Wu Yuan. He believed that he could do everything independently. He believed that he would grow up quickly. He is truly the hero of the village.
"This is not a hero's trial. This is clearly the village chief's bloody trial!"
With a long sigh, Zhang Yang finally gave up, got rid of distracting thoughts, collected his mind, and began to concentrate on building a simple earthen stove.
He doesn't want a sealed furnace that can smelt iron. It just needs to be able to fully burn the charcoal and reduce heat loss.
After all, he was just doing experiments, not making steel.
In other words, he should be the first person in history to study fireball magic in such a down-to-earth manner.
After the earthen stove was slightly dry and formed, Zhang Yang put in the charcoal and set it on fire. The stove was also covered with a stone slab and a blower. Of course there was no blower, but he could use the soul force field to compress the air balls. Continuously feeding into the burning earth furnace, the effect is great.
So for just a moment, it was a heat wave.
Zhang Yang didn't dare to wait too long. His soul force field could control the flame simply because the temperature was not high enough. The temperature in the earthen stove now must be about six or seven hundred degrees.
As soon as he gritted his teeth, Zhang Yang began to compress the soul force field. He didn't use any compressed air balloons and directly built a second closed circle to form a curved force field and envelope the earthen furnace - bang!
With a loud noise, the earthen stove shattered, and the earth, stones, and red charcoal were sucked into the curved force field. In an instant, an earthen ball came out of thin air in his hands.
Fortunately, he reacted quickly enough to directly construct the fourth closed-circuit circle and throw the earth ball out.
"boom!"
There was a loud noise, smoke billowing, and earth and rocks flying. This scene was so familiar.
Standing still for a long time,
Zhang Yang: MMP, is this a grenade