After Shi Bufan finished the course with the students, he began to work with peace of mind. Pen? Interesting? Pavilion wWw. ｂiquge。 infoAt present, there are still a lot of foreign affairs in Datang, especially when Datang has just unified the world, and various affairs are still very complex, so it is very dependent on processing. Especially recently, there has been civil strife in the Western Turks, and Qarlu and Tongyehu Khan have started a war, and this must be dealt with in time. With regard to Tibet on the plateau, these things also need to be revised in a timely manner. Tuyuhun's affairs also have to wait for a report at any time, which is a very important thing. Shi Bufan had to be so busy for a few months, but he was watching the time these days.

"There are still two months left, and Zheng Liwan's matter is about to break out, and we can solve it well when the time comes. This Zheng Liwan's matter will be resolved in two months, so it is better to solve it as soon as possible. Shi Bufan thought.

However, Yan Liben found Shi Bufan and said, "Chief Shi Cao, we have already made the thing called gunpowder that you asked our Yan family to make, are you interested in going and seeing?" ”

"Got it? Okay, I'll go for this! Shi Bufan said.

Shi Bufan didn't expect this Yan Liben to be so easy to get it, this gunpowder is not a very important thing in his current plan. Gunpowder is not as magical as most people imagine, whether it is the East or the West, before the invention of gunpowder, in fact, it was not taken seriously. Because the channel for the use of gunpowder is too narrow, it is not as magical as the average traveler thinks, and even gunpowder is not taken seriously at the beginning.

However, gunpowder is still very good as an ordinary civilian.

"Shi Cao, this is gunpowder of different formulas according to what you said. According to what you said, saltpeter, sulfur and charcoal are mixed together, and then something sticky is used to bond them. For example, egg whites or some fish gelatin, we use this method to bond and form granular gunpowder. Of course, we also use different formulas for this gunpowder. By comparing saltpeter, sulfur, and charcoal, gunpowder of different power can be obtained, and each has its own use. ”

"According to your suggestion, we recorded the different formulations of gunpowder, and then marked them. At present, we mainly have four practical models, that is, A, B, C, D. Among them, the number A is the most powerful, which is specially used to open the mountain and blow up stones, and contains the highest saltpeter content. The power of the other ethylene propylene diminishes begins to decrease, and we can adjust them according to our needs. ”

"Of course, the fact that we can achieve such results is also related to Shi Caochang's investment regardless of the cost. At that time, Cao Chang pointed out the direction, and regardless of the cost input, it was completed in just one month. ”

Someone is responsible for reporting on the research and development of this gunpowder, and the research and development of this gunpowder actually took less than a month, but Shi Bufan has specifically pointed out the different proportions of saltpeter, sulfur and charcoal, and has given a lot of money, if they can't study it for a month, it is really a rice bucket.

However, these guys are still quite powerful, and they directly took out four models of gunpowder, each with different power and different formulas. Although this most primitive gunpowder is less powerful, it is the most flexible, and can make gunpowder of various powers according to his own needs, which is the best controllable. Even the most original black can be used with this. Gunpowder is used as the initiating charge of other explosives.

Under the command of Yan Liben, a gunpowder craftsman quickly put a gunpowder. The bag was placed on top of a boulder that had already opened a hole, and the fuse of the gunpowder was ignited at a great distance. The gunpowder used in this lead is another, and it is a slow-burning method, so that the person can be guaranteed even if he leaves, which is also the reason for the good plasticity.

"Boom!"

With a loud bang, half of Chang'an City was alarmed, and this loud bang immediately blew the boulder in half. Shi Bufan is actually very satisfied with the effect of this gunpowder, which should be black. The most powerful formula in gunpowder. In fact, although Shi Bufan didn't know the most powerful formula, since he had already given the composition of the gunpowder, it was not complicated anyway, so he could come out with a few more experiments by the craftsman, and the cost of these materials was not expensive anyway.

Yan Liben and Yan Lide were also very excited, with such a powerful gunpowder, it would be much easier to mine boulders in the future. As a family that has been in the engineering industry for generations, they know best how much power this kind of thing can bring, and can be used to mine boulders and even all kinds of processing at a very low cost. From now on, even if the country builds a large number of buildings, it will not drag down people's livelihood too much. Isn't that what their engineering family wants most?

A Grand Canal caused the Sui Dynasty to perish, and many people associate the fall of the Sui Dynasty with the Grand Canal. On the contrary, Pi Rixiu said a fair word, if there is no water palace and dragon boat, it is also a good feat.

In the future, the people will not lack materials for all kinds of buildings, and even for all kinds of houses made of stone.

"Two Brother Yan, in the future, the people of the Tang Dynasty can generally use stone to make houses, and from now on, stone can be popularized to ordinary people. In this way, we Chang'an people don't have to be afraid of any fire! Shi Bufan said.

Shi Bufan once again said a use, once the stone is enough, the people can use the stone to make houses. In ancient times, stone mining was not easy, so many ordinary people and even many low-level officials also used thatch and wood to make houses, which is not simple. Stone is low-grade and expensive, and it is very dangerous to make houses out of thatch and wood, because thatch and wood are combustible, and once a fire breaks out, it is easy to implicate each other and cause the whole city to burn.

It is not unrecorded in history that a fire actually burned down half of the city. This is not completely absent in China, because wood is combustible

objects, once in the middle of a fire are very dangerous. With this popularization of stone to make houses, then in the future, people can use stone to make houses, even if it catches fire, it will not expand to burn down half of the city.

"The merit is immeasurable, the merit is immeasurable!" Yan Lide also sighed.

A major fire was avoided, not to mention how much wealth was saved, but the lives saved were also immeasurable. If it spreads out in the future, it will also increase the reputation of the Yan family among the people a lot. Although this gunpowder was paid for and given a rough formula, the Yan family was responsible for the specific research and development. In the future, their Yan family's status in the hearts of the people will definitely be able to improve a lot. When it comes to their status, reputation is very important, and a good reputation is very important at the top. This popularized stone houses and avoided large fires, so such a great cause was enough for the Yan family to be full.

Shi Bufan followed everyone here to continue to discuss the use of gunpowder, and soon a team of Qianniuwei suddenly ran over, and then came over and hurriedly began to check.

"On the emperor's order, come to see what happened. Just now, there was a sudden thunderbolt on a sunny day, and half of Chang'an City was frightened, and the emperor asked me to check what was going on. Unexpectedly, Shi Chang, Yan Fengyu and Yan Shaojiang were also here. The emperor asked me to check, what happened just now? Qianniu Wei Chang asked Gao Kan.

Shi Bufan took the initiative to explain: "There is no problem, we were experimenting with a thing just now, it is quite powerful, you see that stone, it has been made into several copies!" ”

When Gao Kan saw this stone, it had already become several pieces, and they all exclaimed: "What a lot of strength, this is not something that can be achieved by manpower, right?" ”

"Yes, this is our gunpowder, and this is thanks to the recipe given by Shi Cao, we were able to get it out!" Yan Liben took the initiative to say.

Gao Kan saw the rubble that was blown into several pieces, and then said: "In this case, people in Chang'an City are now panicking, and the emperor doesn't know what happened, and he can't refute the rumors in time, so I also ask a few people to report to the emperor with me, and report the cause and effect of the incident, so that the emperor can refute the rumors as soon as possible and avoid unbearable turmoil!" ”

Shi Bufan and they quickly agreed, and walked directly to the inside of Gaokan King City. Gao Kan asked his subordinates to show the emperor the stones that had been blown into several pieces, so that there was a possibility of a deal.

Shi Bufan followed everyone to the palace, and Li Shimin saw the boulder that had been blown into several pieces, and cold sweat broke out on his back. This kind of power, if used on the battlefield, is amazing. Of course, in the same way, Li Shimin will also think of a little.

"If someone suddenly brings me this, wouldn't it be ......" Li Shimin suddenly felt a chill down his spine.

Li Shimin subconsciously hurriedly said: "Yan Lide, Yan Liben, is this thing dangerous?" If some ill-intentioned people get it, wouldn't it be ......"

Shi Bufan explained: "Your Majesty, in fact, this gunpowder is not dangerous. The use of this gunpowder, as well as various applications, is not something that ordinary people can master. It is necessary to study specially, and if there is no person who has studied specially, then even if they get this gunpowder, they will be the first to be killed. ”

Yan Liben also hurriedly said: "Your Majesty, in fact, even if this gunpowder falls into the hands of people with bad intentions, there will be no problem, because if they don't know how to use it, then they will be the first to die." We don't have to worry, what we have to worry about is to get a good grasp of the people who can use it. However, those who can use it don't have to worry too much. Because this gunpowder has a very strict method from making to blasting. We adopted the assembly line method of Shi Cao, and those who know how to blast do not know how to produce. And people who know how to make don't know how to blast, plus all kinds of assembly lines, you also have a division of labor in production, so not everyone knows the formula. ”

"Not to mention that the recipe is changeable, and it's not that constant, so we can keep it as secret as possible. As for saying that he has bad intentions, Rong Chen said something that is not good, if the world is peaceful, then no one will do such a thing against the sky. On the contrary, this gunpowder Haier can collect a large amount of stone and use stone houses for the people, so as to avoid a large number of casualties caused by a fire in a wooden house. ”

Shi Bufan and Yan Liben then explained the effect of this gunpowder together, but in fact, this gunpowder is not as powerful as most people imagine. This gunpowder depends on who is in the hands, and if it is in the hands of a general tolerance, it is actually not very powerful. Ordinary people don't use gunpowder, let alone the basics of explosives, and even they use it indiscriminately, and the first thing they hurt is themselves.

Gunpowder and explosives may be considered very dangerous, but in fact, gunpowder and explosives are not dangerous, but very safe. However, if there is a detonation material, then this can become a real danger. Gunpowder and explosives are powerful, but they are of little use if they do not have the means to exert their power.

"Your Majesty, this gunpowder is actually essentially a thing, depending on who is used in it. If it falls into the hands of a person who doesn't know how to use it, then in the end, it is actually just killing and injuring yourself first, and will not kill and injure others. We want to control those who know how to use gunpowder, and who are proficient in using gunpowder. Also, we should pay attention to restricting those instruments that can bring out the most power of gunpowder. Shi Bufan said.

Li Shimin thought about it, it seems that this is also the truth, the same thing is in the hands of different people, and the power is completely different. It is not the gunpowder itself that should be controlled, but the "channel" through which the gunpowder can exert its power, and this is the point. This channel is also those who know how to blast, and those who use the power of gunpowder to the fullest.

"Can this gunpowder be used in war?" Li Shimin asked.

Shi Bufan replied: "If you want to talk about simple war, it is actually not possible. Because the battlefield is changeable, the enemy won't give us too many opportunities to deploy explosives. The emperor just needs to think about how to deliver the medicine bag to the enemy on the battlefield. Unless it is a small number of ambushes, but the battlefield of such ambushes may not be the mainstream. If you really want to set up an ambush, unless you plan it very carefully, I am afraid it will be difficult to deploy the gunpowder well. ”

"What's more, all kinds of logistics and transportation are also very huge, and maybe the gains outweigh the losses."

The primitive gunpowder was not very powerful on the battlefield, and as for the imaginary medicine bag catapult, this was actually just an imaginary fabrication. Theoretically, it may be possible, but this is too much to overestimate the ability of the ancients, making things like medicine bags is a complex process, and it is not just a casual process. A variety of leads, how to prevent problems during the ejection. Even whether the reliability of the lead during the ejection process can be guaranteed, because a large amount of air flow during the ejection will be enough to blow out the lead.

And how to estimate the length of this lead, when the lead is long, the enemy will have a chance to escape when it lands. The lead was short, and it exploded before it hit the ground. This kind of throwing kit ignores a lot of things, and in fact it is very difficult to execute, a problem that even military experts in the East and the West have encountered for many years, that is, the various qualities of the soldier are far from being able to accurately control this various explosives.

In the hands of people who don't know how to use it, it's good not to hurt yourself.

"Your Majesty, in fact, I have an idea, and then I can concentrate the power of this gunpowder on one point!" Shi Bufan said. (To be continued.) )