She studied chemical engineering in her last life, although she was not a school bully, but she was definitely a talent, and she did not leave behind what she should do when she went to school, she was very serious, and she learned a lot of things, and took some courses that she was interested in.

After graduating from college, she went to work in the laboratory opened by her senior sister, because the laboratory has only been open for a few years, and she has not received much work, so her income is too high.

At that time, her greatest wish was to quickly earn money to buy a house, and when her parents were old, she would bring them to live with her, and have a home of her own in that city.

Now that I have come to this plane, everything in the past has come to naught.

Under the current conditions, it would definitely not be possible for her to make explosives, even if she wanted to get some black powder.

She went out with Miaoqin for two or three hours last afternoon, but she didn't find the saltpeter mine, but she found the phosphate rock by chance, and she was busy all night, all kinds of tinkering, and finally got some white phosphorus out, stored it in a jar, soaked it in water, and sealed it.

Originally, Bai Yunyi still thought that if he really wanted to provoke her, he would blow up the altar of the Witch God Sect to see if those people dared to start a war.

Even the altar was blown up, and the people of the Yue Wu tribe must have thought that their actions had angered the Wu God, so how could they dare to act rashly.

It's a pity that she didn't find saltpeter, so she couldn't refine gunpowder with good power, but it was not bad to be able to make white phosphorus.

As long as the white phosphorus reaches forty degrees, it will spontaneously combust, which is the most suitable for pretending to be a ghost, and the people of the Yuewu tribe are particularly superstitious, so they may be able to receive unexpected results.

Bai Yunyi had already understood clearly, the Great Yan Dynasty was a complete era of cold weapons, and there were no thermal weapons at all, no muskets and artillery.

The old methods used to conquer the city are still used, what trebuchets, ladders, pouring oil on fire, etc.

Even if gunpowder has been discovered, it is not used in war, but only used to make firecrackers, because the power of gunpowder prepared by people in this era is too weak and weak, and it takes a lot of money to blow people up, and it is very troublesome to configure, and it costs a lot of money, and the gains outweigh the losses.

Even the firecrackers that were finally made were sold very expensive, and ordinary people could not afford them.

Bai Yunyi has already planned it, if it really can't work, wait until he arrives in southern Xinjiang, see if he can get saltpeter ore to refine some black powder, and help his father.

If you can't find saltpeter mines, you can only find nitrate.

Nitrate mostly exists in places that are not easy to be washed by water, such as thatched pits, pig and cattle pen houses, houses and old corners of courtyards.

"Let's go!" Chen Yunxia took the lead and said loudly.

This time I went to southern Xinjiang, Bai Yun took Chen Yunxia sisters and Miaoqin together, Miaoqin and her took a carriage, and Chen Yunxia and they rode horses.

The twenty female warriors sent by her cousin Hua Ruyin and the guards sent by her mother were on both sides, and the group rushed out of the alley outside the Hou Mansion as fast as they could.

If it were the past, Bai Yunyi would definitely not go to a place like Suzaku Street.

This is the avenue leading from the city gate to the palace, which is particularly wide, anyway, I have never seen such a spacious road in my previous life, and it is hundreds of meters wide.

Originally, this street was only accessible to the royal family, and the emperor's car could go to the center, but as time went by, the dignitaries and nobles could walk on this road, and later even the common people could go, but the middle was absolutely not allowed to go, otherwise it would be a big crime.