I put away my umbrella and looked at the boy drenched, wondering if I had been retaliated against for teasing him.

"Are you kidding me?"

He waved his hand in a panic and explained: "No, no, no, think about it, as long as you bring this umbrella, you can cover the rain when it rains, and you can shade the sun when it is sunning." If you want to take a bath and can't find a water source, this umbrella can fully meet your bathing needs! In actual combat, it can also provide raw water to assist you in the use of aqueous spells, isn't it useful? ”

I touched my chin and thought about it for a while, and after I figured it out, I was surprised and exclaimed, "Yes! In this way, this umbrella is really amazing! "With me and Kiyohime, the effect is even better!

...... However, I already have a small gourd to store water, so I don't need this troublesome thing.

However, my reaction made him very happy, and the earth boy crossed his waist and said proudly: "Very discerning little brother, there are very few people who know how to appreciate my works, since you are so discerning, then this umbrella will be given to you!" ”

"Thank you for being so polite."

Although the actual effect is not much, but it is better to accept it, at least this rain function can be manually adjusted, and it is usually used to shade the rain and light.

I thought about it again, held the umbrella and asked him, "Can this paper fan be modified?" For example, it can be made into a hidden blocker. ”

The earth boy said in surprise: "Hidden blocker? Quite a good idea! He was excited, but then said depressedly, "But...... To make a cloth that can block the darkener, you need very tough silk, and the cost of such a precious material is very high. ”

I immediately changed my words: "Forget it, I'm just talking casually, and I don't really plan to use it to fight people." ”

"I'll write it down first, and I'll try it later when I have the materials."

He took out a notebook and a black stone pen from his clothes, and wrote down my suggestion, which made me very emotional.

However, the clothes on my body that were inexplicably wet still made me very depressed. Fortunately, I've been mixed up with Kiyohime a lot, and my ability to control water is pretty good. The moisture from the hair and clothes was drained, condensed on the palm of the hand to form a water ball, and then casually threw it out of the window.

"Wow", only to hear someone downstairs scolding: "Which servant street splashed water?!" ”

I, the earth boy, and Yanagi were all shocked, and we were nervous for a long time. But it seems that because there are four floors here, and the hapless guy downstairs didn't come up to investigate, I was saved from being educated to be a new person.

Liu Sheng sat on the chair and shook his fan: "Brother Wang, you have to be a little virtuous." ”

"Oh-"

It's really not good for me.

The earth boy asked in confusion, "Brother Wang? ”

I almost said the wrong thing for a while, Liu Sheng embarrassedly covered his mouth with a fan, and I hurriedly explained: "Xiao Huangwen is that yellow, because I often get involved in pornography, so sometimes I am called Brother Wang." ”

The earth boy stared at me with a wary expression.

Seeing his expression, I quickly changed the topic, squatted down and touched the earthen cannon on the ground, and asked, "What is this thing for?" ”

Sure enough, as soon as this guy heard about his work, he put other questions behind him, and also squatted down and explained to me: "This is my new work recently researched, you see inside this cannon barrel, I will first put some spirit stone powder, and then add some easy to ignite Bai Yaoshi powder, let them mix together, and then this cannon muzzle is aimed at the enemy, and the powder in the cannon barrel is detonated from behind, can't you spew out a huge spiritual fire and kill any enemy?" ”

What, is it a homemade cannon? There's this stuff in the world.

But the earth boy said in disbelief: "But after making it, I found that the distance of this spiritual fire jet is too short, and the power within one zhang is very powerful, but even those in the qi refining period can be blocked outside three zhang." And it's quite heavy, it's very difficult to take it with the enemy, and the recoil is very large, if a person stands behind the gun mount, he will be seriously injured in the moment of the jet. ”

I added: "There's also the stuff of filling powder. ”

"Yes, yes, yes!"

The earth boy nodded in agreement like a chicken pecking rice.

In this world where fairies fly wildly and masters move like lightning, it is really whimsical to want to carry a cannon to bombard people. But the brain hole is big enough, and this kind of thing that does not belong to this world is also thought of by him.

I gestured with my hand: "Let's talk about the problem of carrying and using first, why do you have to make such a big one?" Is it good to be small? ”

"I did it, it's like a toy, it's too small to have power......"

I asked him to take the small one out and look at it, and he rummaged through the cabinets for a while, and then took out the small barrel that was arm thick and showed me.

When I saw this, I shook my head: "It's still too big." ”

The earth boy asked me suspiciously, "Is it still old?" No matter how small it is, won't it only be able to hit the air? ”

"No, portability is the most basic issue, and then build on that. After all, the spiritual fire generated by your powder explosion is just a ball of energy, and it can easily spread in the open space after hitting the muzzle, and the spiritual fire is gone all at once. However, if you put an iron ball about the size of the muzzle in this barrel, and then borrow the energy generated by this spiritual fire to knock the iron ball out at once, won't this iron ball carry a lot of energy of this spiritual fire, and can shoot far away, and at the same time have a very strong penetration? ”

Even if the boy is an invention, it is difficult for him to understand my thoughts for a while.

When I saw that there was a blackboard and chalk in the laboratory, I led the boy to the blackboard and explained to him with images, lines, and numbers how the cannonballs were fired out of the explosive energy, and the four transfers of energy in the process.

This modern knowledge was brought out and taught, and even Yanagi came to listen carefully to my lectures.

Finally I said, "Got it?" In this way, the iron ball shot has the greatest power. ”

After the earth boy understood, his eyes sparkled at me, and he looked at me with admiration.

"Genius! Brother Yuwen, how did you come up with such a wonderful thing? The lectures on the mountain don't have that, where did you learn this knowledge? ”

Liu Sheng also nodded in response: "Although I can't quite understand it, I can feel it, it turns out that Brother Yuwen has great wisdom hidden in your belly." ”

Heck, no one has ever called me me, and now I am so admired by the two of us at one time, which makes me really embarrassed.

I scratched my head and sneered, "It's nothing, I just borrowed the scholar Ya Hui from my hometown, it's not a big deal." Actually, what I just told you is called that, the energy guard ......."

Suddenly, a thunderbolt fell outside, flashing with a dazzling white light, followed by a deafening roar, interrupting what I was about to say, and all three of us were startled by the thunder.

It was above the clouds, and there was no reason for thunder, and both Yanagi and Earth Boy ran outside to notice what was going on, and there was a lot of noise outside.

I immediately realized that it was not man-made, but that there were some things in this world that I could not say.