These preliminary work have been done and done in place, and under an order, the soldiers and the local government have joined forces to go deep into the household, accurate to the person, gather for roll call, and set off in a unified manner! On the way, there are also food and accommodation subsidies from the government, as well as the security protection of the army.

"Isn't there a single family that doesn't want to move? Marvel! After Yun Xiaoshui heard Gu Lei and Chaifeng's report, he asked with some surprise.

"Not really! Master of the National Teacher! At the sound of an order, the whole gathering is coming! It's just that some people cry and some people laugh! Chasing the wind also said incredulously.

Gu Lei is a sturdy middle-aged man, tall, with a large body, a square face, a wide mouth, a pair of ringed eyes, bright eyes, and a vulgar and honest appearance, but in fact, he is not only meticulous, but also shrewd and capable. He was not as surprised as Chasing the Wind, because he knew that their army had been "notorious" since the old general Tu Ju, and it was a brutal army known to many.

The death of the old general Tu Ju is also related to his brutal killing and arrogance and contempt for the enemy. Those immigrants had already heard that it was the "slaughter army" who came to gather and escort them, so they were so frightened that they didn't dare to be willful, who is not afraid of death? They all obeyed orders honestly!

Yun Xiaoshui doesn't know this reason, I don't know very well, but Yun Xiaoshui definitely knows about Tu Ju's death, is calling "Tu Jun" deliberate, is it premeditated? Only you guess, Yun Xiaoshui won't admit it to you anyway!

Just when the army of immigrants from the southeast and south to Kailing Canal was in full swing preparing and acting, Yun Xiaoshui was in his national teacher's mansion in the capital,—— which was the original craftsman's mansion and renovated it again, changed its façade, and silently developed a nitroglycerin that was more explosive than gunpowder, which could be called a real explosive.

This nitroglycerin is much more powerful than the explosion of gunpowder, how powerful can it be, let's just say that! If nitroglycerin is detonated in an open area without any shelter, it only takes three catties to detonate, and the shock wave from the explosion can overturn a person standing three kilometers away.

There are two main things that make this explosive, nitric acid and glycerin. Glycerol can be separated from fats, which is very easy, and animal fats are not lacking. All that's missing is nitric acid, which can be made by the dry distillation of saltpeter and sulfuric acid, but now there is no sulfuric acid.

Yun Xiaoshui thought of the pyrite in Dashiyu, which was not actually pure iron sulfide, its main components were carbon and silica, bauxite and iron sulfide. If you want to make sulfuric acid from pyrite, you have to turn them into metal sulfates first, so you have to let them do a reduction reaction first.

It's easy to reduce pyrite, just heat it directly, but don't put it in a furnace to burn, that might blow up. Yun Xiaoshui sent people to transport pyrite quickly, selected a flat land in the back valley of the villa in the mountain, piled up a pile of firewood on the ground, and then piled up the flakes of pyrite in the shape of a "well" around the firewood, and finally directly piled up into a small hill to bury the firewood, leaving only a few ignition holes at the bottom.

Then the ore and then the outside of the ore pile are covered with a layer of dry grass, and finally a layer of wet mud is pasted, like charcoal, but there are a few vents under and on the top, which cannot be completely suffocated, because the reduction reaction requires oxygen. Finally, a thin twig was sandwiched with velvet and the firewood was lit from the vent below, because pyrite contained carbon and sulfur, so the ore quickly burned in the mud shell.

Yun Xiaoshui finished his work and sat on a stone to rest for a while, and his newly married narcissus girl ran over with small shy, hugged Yun Xiaoshui's head, and wiped his sweat with a champa. Yu Mingzhu, who was helping with the work on the side, held his arm and was about to run to wipe Yun Xiaoshui's sweat, but when he saw that the narcissus was sticky, he pouted and sat down again.

Since marrying Narcissus, this Yun Xiaoshui has never left Narcissus alone, day and night, inseparable! It seems that Yun Xiaoshui really likes narcissus, my favorite! As a result, Yu Mingzhu can't keep holding Yun Xiaoshui to play.

It's also because Mingzhu can pack the whole person of Narcissus, which is one head taller and twice as thick than Narcissus, but it can't beat Narcissus. It takes Yu Mingzhu and Black and White Peony to join forces to tie with Narcissus, which shows how high Narcissus's martial arts are!

has a good literary style, and her appearance is outstanding, almost a collection of excellence, a real god-level beauty. Yun Xiaoshui directly married the third lady and regarded it as her favorite!

Finally, when the furnace is opened, the iron sulfide in the ore becomes iron sulfate, and the bauxite becomes aluminum sulfate, that is, metal sulfate, so that sulfuric acid can be produced. To refine sulfuric acid, a distillation pot is required, and a condenser tube is required.

Yun Xiaoshui drew a picture and paid for it to be produced in a ceramic kiln. A distiller is a pot with a lid with a "chimney" on it, shaped like an aluminum pressure cooker used in modern homes, but without a gravity valve.

The size of the condensate pipe into the joint is just enough to fit the chimney on the lid of the pot, and the central condenser is a thin tube, and there is a thick pipe on the outside, and the top of the thick pipe is open, and cold water can be added from the top when used, so that the distillation through the thin pipe mouth inside will condense into a liquid and flow out from the other end of the tube.

After repeated iron sulfate distillation, Yun Xiaoshui got several large jars of sulfuric acid, and with sulfuric acid, nitric acid was easy to do. The saltpeter and sulfuric acid used for gunpowder are distilled together in a distillation pot, and nitric acid is finally obtained.

With nitric acid and concentrated glycerin, as long as you mix the two, you can do it, depending on whether you can use the amount. This highly sensitive liquid explosive is almost impossible to store, and the best way to do this is to keep them separate when not in use and mix them temporarily before use.

If you want to ask how high the sensitivity of nitroglycerin is, let's put it this way! Basically, it will blow up in a flash. Any other combustion, high temperature, impact, shaking, etc., will explode directly!

In addition to preparing a large batch of gunpowder, Yun Xiaoshui also produced such a batch of nitroglycerin, and when he was about to recruit Chaifeng, Gu Lei and others to teach them in detail how to use gunpowder and explosives to open mountains and dig rivers, Ba Ying came to Yun Xiaoshui.

There was no in the National Teacher's Mansion, and Ba Ying found it in the mountain villa. Yun Xiaoshui was the gunpowder and explosives that he prepared in the mountains where he had villas, and they were almost discovered by Ba Ying, who was only found by Yun Xiaoshui's mountain villa as a surface cover.

This also frightened Yun Xiaoshui a lot, so that Ba Ying discovered that the "Peach Blossom Spring" of Yun Xiaoshui in the cave in the mountains was not good, even if he found his gunpowder and explosives, it was not good. The Naba family even dares to sell arms! She must not be allowed to take herself into the ditch, and she must not die for money! Yun Xiaoshui thought about it and went to see Ba Ying.

At this time, Ba Ying was strolling outside the courtyard wall of Yun Xiaoshui's villa, looking around, Xiao Yao's nose was still twitching, I don't know what she smelled!

As soon as he saw that Yun Xiaoshui came out of the valley outside, not from the villa, he shouted from afar:

"Fairy brother! You were promoted, rich, and built a courtyard,—— people at that time didn't have the word villa, why didn't you tell your sister about a good thing? Afraid to eat your favorite wine? How much is a wine banquet worth? Stingy! Sister, I saved a lot of congratulatory gifts! I didn't calculate it accurately this time, so I made less money, right? Giggle......"