The busy days lasted until the first snow of the fourth year of Sadakan.

After taking a breath of hot air into the palm of his hand and rubbing his hands, Xia Hongsheng said in his heart At this time, Li Xiaogong is only afraid that he has arrived in Ryukyu. It's definitely not cold there.

There was no coal stove in the house, only pieces of wooden shelves, wooden plates on top of the wooden frames, and black medicinal noodles spread inside.

"Childe, the little one is going to fill you with a hot water bottle!" Qi Yong saw that Xia Hongsheng was at a loss, so he stood up and said, and was about to turn around and walk out after speaking.

"No, don't go." Xia Hongsheng stopped Qi Yong and said: "There are only a few left, hurry up and try it out, seeing that it has been almost two months, if you can't make any more movements, my son will not be sure about this year's New Year, and he has to worry about this matter." ”

On the ground were several spherical iron bumps, all hollow inside.

Xia Hongsheng used a funnel to pour the medicine into the iron lump, and then stuffed the lead with a thin iron wire. The lead wire is soaked in tung oil, filled with tung oil and then dried, and then dipped in gunpowder as a thin wire. After inserting the lead, plug the mouth tightly with a plug to ensure that it is tightly sealed.

Xia Hongsheng can't do too high-end bombs, and at present, it's just for experiments, so he just made the simplest "earth-shattering thunder", that is, the kind of round iron ball, with a lead on it.

Xia Hongsheng currently wants to see the effect of gunpowder, this kind of thing is simple to grind, the principle is also simple, and it is the easiest to make.

In the past two months, Xia Hongsheng tried more than a dozen times, recording the power of gunpowder in different proportions, trying to get the most powerful ratio. After all, Xia Hongsheng has not made gunpowder himself, and the proportions he knows are also hearsay in later generations, or in novels, which are not rigorous or accurate enough.

Similarly, the difference in the substance used to fuse and condense the three materials will also affect the power of gunpowder. Xia Hongsheng tried to mix three kinds of powder with egg whites and then dry them, tried to be highly distilled several times, close to the head of alcohol, etc., all of which are meticulously documented.

Including the leads, it has also been improved many times. Rolling medicine noodles with paper is the most unacceptable, burning too fast, and being afraid of water. If you dip the powder with a thin wire, the combustion is not guaranteed, and it will always burn until it is half extinguished. Later, I tried soaking the thin wire in the gasoline, but the combustion speed was not to mention, and it was too flammable and dangerous, which affected the safe use. In the end, I tried tung oil, and found that tung oil can ensure that the thin thread can be kept burning smoothly after drying, and the burning speed of tung oil is much slower than that of gasoline, as long as the lead is left a little longer, it is enough for people to take it in their hands and light it before throwing it out, and it will not be blown out by the wind.

After two months of non-stop experiments, non-stop improvements, the final product is these "earth-shaking thunders" in Xia Hongsheng's hands.

So Xia Hongsheng has high hopes for this.

Qi Yong followed Xia Hongsheng in the military aircraft workshop for two months, and has been helping Xia Hongsheng make gunpowder and "earth-shaking thunder" as Xia Hongsheng's assistant. I also have a very deep understanding of this new type of weapon, and assert that if this thing is completed, I am afraid that it will change the way the army fights.

Even Qi Yong could see the epoch-making significance of gunpowder in the military, and Xia Hongsheng regretted that he didn't make gunpowder earlier. But think about it, the power of gunpowder is so great, if it is made on the basis of Li Laoer's full trust, I am afraid that my situation will become embarrassing. It's not too late now, and it's the right time to go to Li Shimin's own daughter to do eyeliner next to my son.

"Childe, it's alright!" Qi Yong finished the last one, carefully put it down, and said to Xia Hongsheng.

Xia Hongsheng looked down and saw that in the wooden box, there were earth-shattering thunders one by one in the round molds, which were neatly placed, exuding a familiar smell in Xia Hongsheng's memory.

Xia Hongsheng suddenly became a little excited, reached out and took out one of them, looked outside, and said to Qi Yong: "Qi Yong, why don't we try?" ”

"Good!" Qi Yong rubbed his hands and nodded vigorously. This militant was naturally very excited, and this gunpowder was very violent, so Qi Yong was very excited.

Both of them ran out excitedly, Xia Hongsheng was holding the earth-shaking thunder in his hand, and Qi Yong was holding the fire fold in his hand.

The two looked at each other, Xia Hongsheng looked at the earth-shattering thunder in his hand again, hesitated for a moment, and said, "Why don't you try it first, this lead is a little short, it's too dangerous." ”

"Childe, I'll throw it!" Qi Yong volunteered and took the earth-shattering thunder from Xia Hongsheng's hand.

"Then you throw some pieces!" Xia Hongsheng looked at Qi Yong: "Just throw it away!" ”

Qi Yong nodded, grabbed the earth-shaking thunder with his right hand, held the fire fold left and right, swallowed a mouthful of saliva, and carefully moved the fire fold closer to the lead of the earth-shattering thunder.

Qi Yong has been following Xia Hongsheng to make gunpowder and earth-shaking thunder for the past two months, so he naturally already understands the power of this thing. Fang Cai's heart was excited, he really wanted it at this time, but he became nervous again - after all, Xia Hongsheng had told him in his previous experiment that if this thing blew up, there would be no more living creatures within five or six steps, and it wouldn't work if he wore Mingguang armor! What's more, this one is still improved again, I'm afraid it's even more powerful!

"Forget it, don't try it first, try again after the lead is extended." Xia Hongsheng was also worried about Qi Yong's danger, so he shook his head and said.

"No!" Qi Yong felt that he was actually scared, he felt very ashamed, shook his head, gritted his teeth, and grabbed the fire fold to the lead.

I only heard a sound of "snort", and then I heard a "whoosh", and an arc of light flew out of Qi Yong's hand, drawing a trace in mid-air, falling into the snow on the ground, and emitting a puff of white smoke.

"! Throw! Throw! Throw it away! Xia Hongsheng's frightened foul mouth blurted out - Qi Yong was so nervous that he immediately threw out the fire fold with a little lead! And the earth-shattering thunder, fortunately, it was held in Qi Yong's right hand, and the lead sounded!

When Qi Yong heard Xia Hongsheng's shout, he reacted, and immediately roared, and subconsciously immediately picked up his right arm and threw the earth-shaking thunder away.

I saw that the iron lump cut a trail in the air, and then flew out of the courtyard wall.

"Boom!"

With a loud bang, Xia Hongsheng only felt a sudden shock in his ears, as if the air in and around his ears had been suddenly drained, and his heart also jumped suddenly, as if it was about to explode all of a sudden, and the huge earthquake made Xia Hongsheng feel as if his body was about to explode from the inside. There was a loud shake under his feet, and there was a rush of dust on the other side of the wall! (To be continued.) )