Although it was already March, the occasional cold air still made it not warm outside. At this moment, Jiang Tian was hiding behind a fixed shield, with large beads of sweat rolling down his forehead, and he was carefully turning a brass roulette wheel in his hand slowly downward. Not too far away, Song Yi squatted on the ground and looked at him nervously. In order to ensure safety, according to Jiang Tian's command, a grass shed without four walls was built, and four trenches were dug around the shed, and a rickshaw was lifting the well water not far away to the roof of the shed and pouring it down, forming a man-made rainwater environment. And he, Jiang Someone, was standing in the shed, using some unprofessional equipment to compress the black powder into a lump.

This is not the first time he has done this, since the equipment was delivered to his home, he tried to use coal ash and water to press out a briquette, but that thing is not formed because it is not doped with loess, and it will fall apart when it is touched after drying, but he knows that at least this press can be used, and then he dared to load less than three large firecrackers of black powder, intending to try to make a black powder briquette in the dry situation, but suddenly exploded when the pressure rod was halfway through!

At that time, there was less charge, and the prototype equipment was sufficient, so it just blew up the copper piston used for compression, and suddenly cocked with the pressure rod and injured Jiang Tian's hand. But after all, the movement of the explosion is not small, even if the Chinese have long been accustomed to the sound of firecrackers, the people around the excitement were also shocked, and then a second wounded person appeared, after the blown piston flew into the air, the kinetic energy gradually exhausted under the action of gravity and fell back to the yard, just hit the satyr who came to check Jiang Tian's injury, fortunately, this guy's thick skin and flesh are just bruises, if you change Song Yi or Zhang Huan, then I'm afraid it will be a big trouble. For a few days, Jiang Tian's palms were wrapped in thick gauze, and when teaching, he could only let people write the board book on his behalf, and all the people in this experiment were apprehensive, if it weren't for the lack of charge, whether Teacher Jiang could still stand here was also between the two. At the same time, regardless of whether they visited this experiment or not, all the big guys also understood that all kinds of unknown experiments are full of all kinds of unexpected dangers, and if they start rashly without sufficient preparation, I am afraid that they will not know how to die at that time.

Jiang Tian also fully summed up the lessons and lessons, he knew that he was just a fluke this time, it was because he took into account a variety of safety measures that he was only slightly injured, if he only told Song Yi the principle and let them go to the test, it is estimated that there will be a few martyrs now. Then he thought that although this gunpowder was very stable, it could not be compressed in a dry state, and it had to be wet die-cast like a briquette, but the gunpowder could not be wet, otherwise it would fail, so what exactly was used to bond the gunpowder? While he was pondering, the pervert's conversation inspired him, which probably meant that he didn't hit his head this time, so his classmates asked him to set up a drink to celebrate.

"Wine ...... Alcohol! Jiang Tian's eyes widened excitedly, alcohol is not only volatile but also flammable, the key is that the nature is relatively stable, and it will not cause gunpowder naturally.

However, the highest degree liquor on the market is more than 50 degrees, and the distillation technology of this year is not up to par, so the high-grade liquor stops there. Do you want to purify the alcohol yourself? After thinking about it, Jiang Tian found that there seemed to be only one way to go, so he could only helplessly pick up the beaker test tube in his hand, seal it with a simple wooden stopper and yellow mud, and temporarily set up a super-small distillation and purification equipment, and then poured the cheap burning knife he bought into it and ignited it to evaporate.

"Tut-tut......" just took a small sip, and the pervert suddenly felt as if he was about to fly out of the room, his tongue was so hot that he was numb almost instantly, and he opened his big mouth and desperately fanned it with his hand: "This...... This...... This wine ......"

Jiang Tian looked at him sympathetically, other students didn't think so, they didn't know what Jiang Tian had done, in fact, since the explosion last time, the big guys had formed a consensus, that is, when Jiang Tian was conducting some experiments that he was not sure of, try not to get too close. Although Zhang Huan was still very curious, he also had lingering palpitations about the explosion, fortunately, Jiang Tian had instructed them to keep at least ten meters away from him if he was injured, and it was hard to say whether the queen mother would trouble Jiang Tian, but he didn't want to leave the palace again.

Ignoring Liu Baokai, who stuck out his tongue like a dog on the side, Jiang Tian explained very strictly: "In today's class, we will talk about this distillation ......."

It took a class to understand what is going on with the volatility of alcohol, and you can use this volatile property to obtain pure alcohol that contains almost no water, and Liu Baokai is honored to be the first person in the world to drink alcohol with a purity of more than 95%. Because according to the rules of the Green Religion, the people are not allowed to drink alcohol, so from this point of view, the pervert is not pious at all. Later, however, in order to take care of certain national sentiments, textbooks defined this as a glorious deed of dedication to science, thus downplaying the fact that this guy was an alcoholic.

With high-purity alcohol, although the amount produced is very rare, Song Yi, who understood the principle, began to set up a much larger distillation equipment as soon as he went back, which was actually just a matter of re-improving the set of things in the brewing workshop. Jiang Tian not only showed the beauty of alcohol lamp, but also explained the great role of alcohol as a solvent, detergent, and medicine, especially in the treatment of traumatic wounds, although sprinkling alcohol on the wound is more vicious than sprinkling salt, but at least it can avoid some malignant infections, as for how to endure the huge pain...... Or give the patient a chew?

Song Yi knew the huge effect of alcohol, so he started the batch purification work without Jiang Tian opening his mouth, and after Jiang Tian's explanation, he also pioneered the addition of alcohol to the saponification reaction to get better quality soap. Therefore, when the new press designed by Jiang Tian was in place, there were sufficient alcohol reserves to test the compression of black powder. This time, both Jiang Tian and others have a long memory, not only the first test has a smaller charge, but Jiang Tian also planned to carry out the limit test, he gradually added alcohol to the black powder, basically stirred it into shape, and then took a small point with a small wooden spoon and put it in a special test container. Finally, the pressure is gradually applied until it explodes. Because of the small charge, the power was not much greater than that of the gunfight, but he got the compression value he had always wanted, and when he applied this value to the size of the propellant he was about to test, he knew where he should stop.

After several days of repeated experiments, he finally wanted to make a mortar cannon to launch a cake of ammunition, this time in order to prevent the original design of the press from being inaccurate and life-threatening at the same time. Instead of using a runner drive gear to pressurize a piston connected to a screw, the operator was able to stay away from the gunpowder at a certain distance, although the power loss was relatively large. Moreover, the lost force just ensures the stability and slowness of the pressurization, which can be regarded as an insurance measure. As for the extravagant use of brass as a material, it is to prevent sparks caused by friction of iron parts. Jiang Tian, who had fully learned his lesson, not only found an open place to experiment, but also used an earthen water curtain to cool and humidify the shed, and also relied on the fact that the weather had not yet warmed up, so if it was summer, he Jiang Tian had to run to the ice cellar to test. At least one or two hundred meters away, the pervert and a few other gentlemen were also anxiously looking at Jiang Tian in the distance, this time it was not a small number of tests, but at least a hundred grams of propellant, if it exploded, it was hard to say whether the cast iron shield in front of Jiang Tian could block the shock wave. I don't know how long it took, Jiang Tian slowly stood up straight from behind the shield, and then took out a medicine cake that looked like the size of a briquette, and everyone was finally able to breathe a sigh of relief, and then ran over quickly. Looking at this piece of medicine cake with water stains, the big guy only has a surprising portion, who would have thought of using alcohol to stick gunpowder together? As for the power of this thing, I don't know yet, but at least it must be a lot stronger than the bulk gunpowder of the past.

"Shall we try to light a fire?" Although the pervert who has been itching his hands does not dare to touch it with his hands, he also wants to see its power.

Jiang Tian shook his head: "Don't worry, the alcohol hasn't dried out yet, and let's talk about it." ”

A few days later, when they came to the test site again, the world's first medicine cake made by the wet compression process had been completely dried, so Jiang Tian placed it in a dirt pit. Then he threw a torch into the pit far away, and then all the people blocked their ears and waited with their eyes wide open to see the fireworks, but they waited for a long time with their eyes open, but they didn't see the explosion, let alone the explosion, and they didn't even see the flames.

"Did the torch not burn the medicine cake?" Song Yi asked Jiang Tian suspiciously.

The latter could only shake his head, then cautiously walked to the edge of the pit, slowly looked inside, and then had to stand there with his waist crossed and waved helplessly to everyone. When everyone ran over to take a look, the torch was just on the edge of the medicine cake, and the flame licked the medicine cake but it didn't ignite.

"What's going on?"

"Is it because the surrounding water vapor is too large when it is compressed, so the gunpowder is damp?"

Just when everyone was confused, Jiang Tian picked up the torch and threw it aside, and then carefully reached out and tentatively touched the medicine cake, although the temperature was a little hot, it just showed no signs of burning. Then Jiang Tian asked everyone to spread out and keep a distance, tied the detonator to the medicine cake with the soil detonator he took, and pulled a fuse with a length of more than ten meters, this time he did not put such an earthen explosive bag in the pit, but put it on the ground, squatted into the pit and poked his head, lit the fuse, the fuse snorted white smoke and burned to the explosive bag, and then a moment of white light flashed, Jiang Tian felt that he seemed to be wandering in the pit for a long time, and he was dizzy from the shock wave, so he felt that it would be better to let the explosive bag in the pit next time. When the equally shocked people reached the explosion point, they found a crater in the loess ground......

The stunned pervert turned his head to look at Song Yi: "Dexin, are you sure this is a hundred grams of gunpowder exploded?" ”

Song Yi gasped, he hadn't seen gunpowder explode before, if he wanted to blow up this kind of circle with a diameter of at least one meter, and loosen the surrounding land, he also needed a jar of gunpowder: "If this thing is filled into the cannon chamber......"

Jiang Tian nodded: "Then the gunner will directly become a martyr!" ”

This joke is not funny at all, so no one can laugh out loud, but Liu Baokai, who has been fighting in the military camp since he was a child, thought of another question: "But if it is packed in thistle, wouldn't it be a big kill if you throw it out?" ”

Several people raised their eyes to look at him, making the kid think that he had said the wrong thing again, so he blushed and scratched his head: "That's what I said......"

Jiang Tian stretched out his hand and patted the pervert's shoulder, looked at him very strictly, and said, "I didn't expect you to be smart too!" ”

Song Yi also knew that the pervert was right, and he also scratched his head: "But this thing can't be lit in ordinary ways, I see that you used a cannon to detonate it." ”

"Yes, I thought about it, maybe it's because it's compressed too tightly, so ordinary ignition can't ignite it anymore. This detonator must be used to detonate, but fortunately it is not difficult to make, it is nothing more than a cannon battle. ”

Wu Yuan, who recovered from the shock, thought of a question at this time: "But sir, you once told Your Majesty that you want to study a propellant that is better than gunpowder, and this thing can't even be used as a gun, how can it be loaded into a musket?" ”

"Alas......" Jiang Tian shook his head regretfully: "Before we can make cotton wool, let's make do with gunpowder." ”

After Zhang Tao heard that Jiang Tian had made explosives that were more powerful than gunpowder, his excitement was overflowing, and he patted Zhang Huan, who came to report the news, and laughed incessantly, so that our prince didn't know what medicine his father had taken wrong. As a former PLA soldier, not to mention other tactical qualities, at least this bomb throwing technology can be regarded as a housekeeping skill. Historically, due to the lack of heavy weapons, the People's Liberation Army (PLA) has played all kinds of tricks with hand grenades. However, although there are primitive grenades such as thistle terrestris or tribulus terrestris, they can be limited by the power of the charge. The lethal ones are negligible, and unless you can throw a barrel the size of a small jar of explosives, don't expect the bomb to be very useful. But now the situation has changed radically, and the power of compressed black powder is actually only one-third of that of TNT, but at least it has changed from a violent combustion to a violent explosion. Naturally, the difference is understood by the enemy.

"Can you make a fire pipe?" After urgently summoning Jiang Tian, Zhang Tao couldn't wait to ask this question.

Jiang Tian knew that the other party wanted to make a grenade as soon as he heard it, but this time he couldn't do anything: "No phosphorus!" What do I get angry with? ”

"Phosphorus ......" Zhang Tao frowned, thought about it, and then laughed disgustingly: "I'm afraid it's not that there is no phosphorus, but you're too lazy to do it, right?" ”

The second monk Jiang Tian was puzzled, he knew the industrial manufacturing method of white phosphorus, but there was no electric arc furnace in his hand, so he couldn't produce it at all!

Zhang Tao didn't seem to know about him, so he didn't sell it: "When you were in your hometown, did you watch "Mine Warfare"? ”

Jiang Tian nodded: "Then who hasn't seen it?" ”

"That's right! Why do you say that you don't see the devil and don't hang the strings? And not because the mines are detonated by pulling the hair. You said that a bunch of militias can do it, can we still be bad? ”

"But...... You still haven't said how you get phosphorus! ”

Zhang Tao smiled softly: "I didn't expect you to have something you don't understand, I remember that it seems to be obtained by evaporating human urine!" ”

Jiang Tian was stunned, feeling that this seemed to make sense, but the question was......

Immediately after that, the city of Beijing issued a new directive that all residents in the city should store their urine separately every day and dump it in the dung trucks walking the streets and alleys. As for what to do with so much urine, there are different opinions, so that for a while, it began to be rumored that the boy's urine boiled eggs could prevent all diseases, and the emperor wanted to use it to make the elixir of immortality! As long as the emperor says something, even if the people below don't understand the meaning, someone will carry it out, especially this kind of order is harmless and just incomprehensible, but in a certain wilderness in the city of principles, those who work don't think so, they have to endure the smell of the sky every day, these people seem to be full of this smell, even if they can't wash it. Not only that, but also be careful to take out the wax-like stuff that has been boiled in the pot with a bamboo tong, and that's not all, as long as the temperature is high, the wax will burn on its own, so if you are not careful, it can start a fire, and if it weren't for the fact that they are all prisoners, God knows if anyone would have come to do the job.

After obtaining white phosphorus, Jiang Tian carefully processed a kind of fire pulling tube, in a wooden pipe, with two brass sheets and then mixed with glass powder and white phosphorus to plug it in, and connected the fuse at the other end of the pipe, compacted and sealed, and pulled the copper wire with his hand, he heard a loud sound, and the fuse on the other side burned. The next thing was simple: the fire tube, the detonator, the calculated fuse and the compressed black powder were packed in a cast iron shell with prefabricated fragments, and a hollow wooden handle was attached, and finally a small iron ring was tied to one side of the hair rope, and the hole in the wooden handle was plugged with a plug, and a grenade was built that was very close to the modern level. When you use it, pull out the stopper, the ring falls due to gravity, and the bombardier can pull the grenade with the ring and throw it hard, and the rest is to wait for the sound.

After throwing a few cross-hidden things on the test ground, Zhang Tao, as the emperor, couldn't close his mouth with such an iron bump and smiled, not to mention him, even those generals who are used to seeing big battles are also happy, these old things understand that with this thing, even if the musket is slow, organize a vote of grenadiers, and throw it over continuously, even if tens of thousands of cavalry rush over together, they are not afraid!

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