Yuan Fang nodded and said, "Well, this is a good way." ”

Ye Qingru frowned and said, "But in this way, the fuse will become longer, will that affect the explosion time of the shell?" ”

Xia Yi added: "Also, if you use a wooden stopper, you need to expand the size of the fuse tube, will the expansion force of the shell explode push the wooden stopper out?" If that were the case, would it be that the expansion force would be consumed too much, and the power of the explosion would be reduced? ”

These days, following Yuan Fang to study gunpowder, shells, bombs, etc., everyone has learned a lot, although the nouns and things are not standard and professional, but they are all set in a set.

After Ye Qingru and Xia Yi raised objections, everyone looked at Yuan Fang together, waiting for him to give an answer.

Yuan Fang has a big head, he doesn't understand such a professional question, and he doesn't know what will happen, but he has his own way: "Xia Yi, record what you said first, and let's do a few tries later, theory promotes practice, practice verifies theory, let's also see is believing." ”

When Xia Yi was making records, Yuan Fang found that Guan Xiaoyun, who had been silent, was looking at the corner of the wall in a daze, and couldn't help asking, "Xiaoyun, what do you want?" Everyone is trying to figure out a way, you kid is actually lazy? Beware of me punishing you for sweeping the hut. ”

Guan Xiaoyun said aggrievedly: "Dean, don't you have the heart of a villain, okay?" I'm trying to figure it out. ”

Yuan Fang hugged his arms and pouted, "Okay, you can tell me what you have come up with." ”

Guan Xiaoyun pointed to a few wooden boxes with open lids in the corner of the wall and said, "Look at the two boxes on the far left and on the far right. ”

Yuan Fang took a look, one of the two boxes contained bulk gunpowder, and the other was to store discarded rubber scraps, these Yuan Fang looked at it every day, and didn't find anything strange: "What's wrong, these two boxes are normal?" ”

Guan Xiaoyun rolled his eyes: "It's normal, but you look at the things inside." ”

Yuan Fang looked at it carefully again, and said suspiciously: "It's nothing, one is gunpowder, and the other is rubber particles." ”

Guan Xiaoyun said with an expression of hatred: "Dean, why are you so stupid? Can't see this? ”

Yuan Fang said angrily: "You kid quickly said, if you can't come to the thatched house for a reason, you will be cleaned." ”

Guan Xiaoyun ran over and moved the two boxes in front of everyone and threw them on the ground, Yuan Fang was startled: "You kid, that's gunpowder." ”

Guan Xiaoyun said disappreciatively: "Dean, look, what's the difference between these two boxes?" ”

Yuan Fang touched his chin and thought about it and asked tentatively: "One big and one small?" ”

Guan Xiaoyun shook his head: "No, you should be as big as them." ”

Yuan Fang scratched his head, squatted down and observed carefully, but he still didn't see anything, and Yuan Fang, who was a little impetuous, said impatiently: "What do you kid want to say?" ”

Guan Xiaoyun sighed in disappointment and said, "Dean, you really disappointed me. ”

Seeing that Yuan Fang had signs of publication, Guan Xiaoyun hurriedly announced the answer: "Don't, calm down, I said, I said it's not okay, dean, you see, these gunpowder powders are too fine, and they fill almost all the space after filling the box, you look at these rubber particles, their particles are larger, and they are irregular, there will be gaps between each particle, these gaps are also space, dean, you said, under normal circumstances, there is space means that there is air, if we can make these gunpowder powder into irregular particles like rubber particles and then fill the shells, So is there enough air in the shell to ignite the gunpowder? ”

Hongyi guessed Guan Xiaoyun's thoughts when he brought the box, but she didn't want to steal the limelight of her master, so she waited until Guan Xiaoyun finished speaking before adding: "Also, if you replace the original gunpowder with granular gunpowder, you can also reduce the weight of the cannonball itself, increase the range of the cannonball, and it will not cause the center of gravity to deviate and derail due to the lack of gunpowder." ”

The more Yuan Fang's eyes lit up the more he listened, and when the red clothes finished speaking, Yuan Fang slapped Guan Xiaoyun's thigh fiercely: "Okay, you kid, this method is good, not bad." ”

Guan Xiaoyun sighed and said dissatisfiedly: "Dean, what are you beating me for?" ”

Yuan Fang spread his hands and said: "It's not a fight, it's to express excitement." ”

Guan Xiaoyun rubbed his thighs and said, "Then why don't you shoot yourself?" ”

Yuan Fang's villain Dezhi said: "Nonsense, how painful it is to shoot yourself." "Revenge, this is definitely revenge, Yuan Fang's careful eyes once again made everyone speechless, and extremely kind.

Killing Yuan Fang didn't expect such a complicated problem to be solved so quickly, and he couldn't help but sigh that there is great strength in numbers, and the wisdom of the masses is infinite and cannot be ignored.

Looking at the sky, it was still early, Yuan Fang immediately decided to start making the newly conceived cannonball immediately, Jieyue went to find a carpenter to make hollow woodpipes, Yuan Fang and Guan Xiaoyun made granular gunpowder, and the others held on to handle the shell cover, Yuan Fang planned to combine Jieyue's opinion and Guan Xiaoyun's idea into one.

It stands to reason that Guan Xiaoyun's idea is enough to solve the problem of the air in the cannonball and the shift of the center of gravity, so why did Yuan Fang add woodwinds to it in one more move?

The reason is that the previous observations, although the power of the shell explosion is not small, but the diffusion of the explosion is not perfect, there will always be a forward rush, how to say, that is, it is not a radial explosion, but a forward extension, Yuan Fang has analyzed, it should be that the explosives in the shell are not burned enough, after the fuse ignites the gunpowder, the gunpowder also has a burning process and time, and the end of the lid will be in the rear of the shell flight because of a certain principle when flying, and the gunpowder at the rear end is ignited first, burning violently, generating heat and pressure to cause an explosion, But at the moment of explosion, in fact, the gunpowder in the shell, especially the gunpowder at the front end, has not yet burned, and it is ignited after the shell explodes, so that the effect of forward rush will appear, but if a tube is added to the shell, so that the fuse can directly ignite the gunpowder in the middle part, then, the overall burning speed of the gunpowder in the shell will be doubled, if the gunpowder can be burned before the shell can not withstand the expansion force explosion, not only can greatly increase the power of the explosion, but also avoid the irregular diffusion and killing effect before.

Drilling holes in wood is no longer a difficult task, with a vice and a drill bit is a matter of a few clicks, Yuyue soon came back with more than a dozen drilled wooden stoppers, and Yuan Fang and Guan Xiaoyun also basically solved the problem of gunpowder clots.

Before, Yuan Fang encountered this kind of thing when he was making the fuse, but because the plastic jar was accidentally knocked down and sprinkled on the gunpowder, as a result, the gunpowder was glued together, and Yuan Fang did not have much gunpowder at hand at that time, so he naturally didn't want to waste it, so he dried and smashed the gunpowder with glue and planned to continue to use it.

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