"I swear I'll never drink again." Like everyone who drinks too much and regrets when he gets up, Lu Zhe swore very seriously while rubbing the panda's ears.

Drinking is a mistake. Lu Zhe looked around with a sad face.

There is no other reason, yesterday Niu Jinda gave him ten horses of Shu brocade, and he vomited a mess. That's the best Shu brocade, in the Tang Dynasty is hard currency, can be used as coins, smooth satin with gold thread embroidered with beautiful moire, the touch is smoother than his skin, but he vomited a mess on it, and his heart hurt like a pinprick.

Of course, the head pain is also related to last night's wine, the wine of the Tang Dynasty is similar to the rice wine of later generations, looking at the degree is very low but the stamina is great, he drank high yesterday, he doesn't know how he came back, and when he woke up, he found that he had slept with the panda all night, and the smudges stained the panda's hair, and the panda looked at him with disgust, and his head hurt and was about to explode.

What made him feel even more like his head exploded was that it was his own monk apprentice who told him that he was in the limelight last night, and Lu Zhe was desperate again. As the saying goes, the embankment is higher than the shore, and the waves will destroy it, bah, it is the wood that shows in the forest, and the wind will destroy it, after hearing Dingming describe how he showed last night, Lu Zhe really felt that he was urging the waves, did he become a child and even his heart became younger? Lu Zhe was a little puzzled.

It is a black household that does not even have a household registration, the remnants of the previous dynasty, the villagers of Wuzhuang Guan still look like they do not eat Tang Su and live in seclusion in the mountains, they showed off the face of the unified military mansion last night, God knows whether Niu Jinda, the head of the feudal army, will detain himself in the mansion, and since then he has been a dedicated data analyst, in the era of serious human rights problems in the Tang Dynasty, his own black household is not to mention being detained, even if he is killed, no one will ask.

This is embarrassing, Lu Zhe is very depressed, originally in the past few days, he has cured Niu Jinda's external injury, and Comrade Niu faintly let him be his exclusive military doctor, plus he showed off statistics and data analysis last night, it is estimated that it will be more difficult for him to go out of the house.

"Why didn't you stop me yesterday?" Lu Zhe cried and asked the apprentice he had just received.

"The disciple wanted to stop it, but at that time Lu Shi was already drunk, no matter how he stopped it, he couldn't stop it, besides, Lu Shi's ability is unpredictable, and he can deduce the movement of the unified army from a few hundred catties of forage, we were shocked yesterday, if this is appreciated by the unified army, wouldn't Lu Shi soar into the sky, such a beautiful thing, why does Lu Shi look bitter?" The great monk Dingming looked at his young master and looked puzzled.

You know a hammer, Lu Zhe silently complained in his heart, although the Mu family firm had sent the wine lees to Wuzhuang Guan along with the second batch of forage and cows, but no one knew that this was used to feed the cattle and sheep, if he didn't go back, and the Mu family kept sending it over, God, Lu Zhe imagined the terrible scene of his small thatched house being flooded with wine lees.

The city is too terrible, I want to go back to the mountain village, seeing that the guards at the door have become four, Lu Zhe thought more and more distressedly.

Lu Zhe, who wanted to go out for a walk, found that the four guards were "defending" him inch by inch, and when he asked, "Xiaolang Jun is a distinguished guest in the mansion, and Commander Xue asked us to protect the prince well." "Sister, you forced me, Lu Zhe is ruthless, first let Dingming go and clean the panda that he vomited, and only he has a super high force value, so he can make the hot pot bathe obediently, Lu Zhe himself can't do it.

After Dingming grabbed the skin of the back of the panda's neck and dragged the panda away, Lu Zhe carefully closed the door and began to tinker.

What Lu Zhe has to do is what people who travel through must do - make black powder.

In his previous life, as a chemical dog, almost every chemistry student would have quietly studied two things, one was explosives, and the other was a certain great and righteous character in Jin Yong's pen - Wei Xiaobao's commonly used corpse dispersion. There are even some senior brothers who have graduated and passed on the research recipes to their younger students.

Therefore, Lu Zhe is also ready to get some black powder out.

I don't know how the other predecessors who crossed it did, anyway, I feel that they just messed with charcoal and saltpeter sulfur, one sulfur, two nitrate and three charcoal, and it was a success, and the power was amazing, often just a little fire to blow up a big pit, but how can it feel so difficult to get here.

In fact, if you really prepare gunpowder according to one sulfur, two nitrate and three charcoal, it can be exploded, but the effect is ....... F Anyway, it is not as amazing as described in the novel, it is basically similar to the explosion released during the New Year, and some of the effects are not so good.

If you want to blow up a bowl-sized pit on the flat ground according to the gunpowder that other time-traveling predecessors said, you need at least a brick-sized explosive bag, instead of a small porcelain bottle that can blow up a big hole in the tamped ground as described in other time-traveling novels, do you really think that a person who is not a professional can make a gunpowder that can kill all sides with gunpowder? In his previous life, he read a time-traveling novel, and saw that some of his predecessors also used gunpowder to blow up the ancient city wall, Lu Zheneng was happy for a while, not to mention their kind of matching, 80% of the consequence was to blow himself up first in the process of configuration, and then he said that the configuration was out, except for listening to a sound, it had no big effect.

The ancient city bricks are all large pieces of bluestone, bonded with Sanhe soil (glutinous rice, lime, sandstone), extremely strong and extremely smooth, not to mention the lame soil explosives, during the Anti-Japanese War, the ancient city wall of Nanjing, the devil's cannon had to fight for a long time. Why is there a blasting expert, because the blasting expert calculates and knows where to blow it from, and the damage will be the greatest.

It turns out that in ancient times, when productivity was low, it was still difficult to make explosives that were suitable for the use of the traversal.

The first level is the purification of explosive raw materials, the ancient sulfur is natural sulfur, containing a lot of impurities such as clay asphalt, accompanied by a large amount of arsenic, yes, is the arsenic that is, these impurities account for about 30% of the ordinary sulfur, just this, a lot of people through the public with the sulfur of the smoked snake to make explosives is difficult to establish, sulfur purification needs to be heated, stirred, filtered, but also to add a common thing in life, not only troublesome but also very dangerous, not professionals should not get it.

Fortunately, I heard that Lu Zhe was going to use it to dispense medicine, and what the Tongjun Mansion gave him turned out to be sulfur concocted by the pharmacy, and most of the arsenic and impurities in it were removed, Lu Zhe initially estimated that the purity was almost 90%, and it was barely usable.

Next is saltpeter and charcoal, saltpeter purification is not difficult, charcoal is simpler, ready these three, Lu Zhe began the long grinding process, with the stone pestle and stone mortar he made a few days ago, these few things are finely grinded, the more evenly mixed the black powder, the better the effect, because making granular gunpowder can make it burn more fully and the explosion power is greater.

After getting it done, Lu Zhe weighed the sulfur saltpeter charcoal in a proportion, and then added the egg white sent by the kitchen, stirring it slowly, while carefully mixing, these three things are extremely unstable, and it is possible that if the egg white is not added, it may explode under a little impact, so this is why if the traversal does not know the specific method, he directly makes explosives on the ground, and nine times out of ten it is the reason why he is full of bombs.

In order to increase the power, some other auxiliary agents that are very common in life have been added to it, of course, in order not to teach the officials badly, the specific proportions, the remaining additives and manufacturing methods, will not be written (Crane declares again, C4 makes a shot in the morning, and the police come to your house in the afternoon, and the soil explosives are very dangerous, not as simple as written in the novel, and it is illegal, please do not try).

After these powders have become paste, Lu Zhe dried them in a stone crucible, worked for more than half a day, and finally got three small bottles of black powder, Lu Zhe put the gunpowder into the porcelain bottle, compacted it, and made a fuse with fine hemp rope, the fuse was stuffed into the bottle with the gunpowder, and then plugged it tightly with a cork, Lu Zhe carefully put it in the shade, and then he breathed a sigh of relief. Sprinkle a little homemade liquor into the house to hide the smell of sulfur, then open the windows and doors to let the smell dissipate quickly in the cold wind.

As soon as he opened the courtyard door, he saw Xue Fengyi standing at the door of his house, with a lot of snow on his body, and it seemed that he had been waiting for a while.

"Mr. Lu Xiao, a certain commander is invited." Xue Fengyi said with a smile.

Sure enough, it came, it was a blessing or a curse, and it was a disaster that couldn't be avoided, Lu Zhe turned his heart sideways, followed Xue Fengyi, and walked out together.