"Wall frost?" Yin Zhen frowned slightly, "How do you remember that the wall frost is used to make firecrackers?"

"Yes, you can make firecrackers, you can make ice. Wu Lingzhu nodded, "Saltpeter ice can't be eaten directly, there is a poisonous substance in it, which can only be used to relieve the heat or ice things." ”

Yin Zhen looked at Wu Lingzhu and talked eloquently, the little Fujin he married is like a book, you never know what the next page is.

Wu Lingzhu's five senses were keen, and he stared at him very unnaturally, "What are you looking at me like this?"

"Fu Jin knows a lot. Da grasped the little hand of Wu Lingzhu, and Yin Zhen sighed in his heart, "Ye has never understood these things." ”

"What's that, I don't understand it! I'm just bored and like to look through books, and occasionally I see one or two methods; I'm different, I've been very busy since the beginning of my errand, where do I have time to read these things! Everyone is good at it differently, otherwise, why are there levels in this world, just because everyone is in different positions!"

The ancient system was more conservative, while the modern system was relatively relaxed, and the control of the common people was relatively enlightened.

In fact, there were hierarchies in that era, and the rich and the poor in modern times were very distinct hierarchies; the rich must do things more conveniently and faster than the poor, and their connections are not comparable to those of the poor.

The same is true in ancient times, knowledge, the ancient feudal hierarchy is more distinct than the modern concept of class.

Yin Zhen was not comforted at all, and only secretly made up his mind to read more miscellaneous books; miscellaneous books are not necessarily bad, depending on whether he can get the essence of them.

"Don't comfort you. Yin Zhen thought about it, "Since saltpeter is so useful, the master should also let people buy saltpeter and hoard it." ”

"There's not a lot of saltpeter, so it's good to stock up. Wu Lingzhu dragged people into the house, and the people outside were still standing in front of the ice basin, curiously studying back and forth; when they returned to the house, Wu Lingzhu said: "Saltpeter is a kind of ore, it is better to let people find out if there is such an ore in various places; it is better to buy it outside, and it is true that it is in our hands." ”

It's not worth buying saltpeter from outside every year, it's better to buy a saltpeter mine and buy and sell it yourself.

Yin Zhen nodded, with a smile in his eyes, "Fu Jin and Ye thought of one place." ”

"It's good if you have an idea, our mansion is not short of money, but you will use a lot of manpower and material resources in the future, and money is essential. This is also what she is planning now, the glass factory has passed the bright road, they all have the bright side of the income, and other businesses should not be shown.

The other princes and elder brothers have industries one by one, but they do not make a very profitable living; Yinzhen is rich, he has earned more than one million taels in the past few years, plus the dowry industry left behind after the death of Queen Tong, he is a real wealthy brother.

From the usual food and clothing and expenses in the palace, everyone is afraid that they just think that they have not saved a few money, but they don't know that most of the head is pinched in her hands, and Yinzhen has no other expenses on weekdays, so she eats and wears better. Not to mention Yinzhen, let's just say that her own dowry has added more than 600,000 taels of silver, not to mention the properties that have been purchased one after another.

The combined property of the two is probably richer than that of the current prince.

Yin Zhen smiled and nodded, "These have all the ideas of the master, don't think nonsense, think too much about hurting your body." ”

"Okay, I said so, I don't want to do that much. Wu Lingzhu shook her head and put aside her complicated thoughts, she should believe her brother, no matter whether it is wild history or official history, as long as her brother can forbear, can forbear, and is good at forbearance, he will definitely be able to sit in that supreme position.

"You are the blessing of the master, everything is there with the master, you can enjoy all the honor that the master gives you with peace of mind. "Don't work hard, let him worry about it all the time.

Wu Lingzhu didn't think about it, so he responded, "Well, the method of making ice from saltpeter, do you want to tell Huang Ama?"

"Let's not talk about it for now, wait until we find the saltpeter mine. Yin Zhen pondered for a moment and then said, "If you find it, it will be in your name." ”

"Are you afraid that the emperor will be suspicious?" Now that the prince is orthodox, Emperor Kangxi supports the prince with all his might, and the other princes can be excellent and capable, but they cannot threaten the status of the prince.

I have to say that the crown prince is the only son of Emperor Kangxi, and the others are all picked up, and the gap in favor is too big; it is no wonder that the mentality of the eldest brother was unbalanced later, and the eldest brother in the later period, Emperor Kangxi did not like it, the prince showed off his power in front of him, and the younger brothers behind him were all older and had the ability to compete for status and power.

The prince was later defeated, she didn't sympathize with him at all, the starting point was so high, and in the end he was ousted from power, it can only be said that he is not capable and his heart is not good. enjoyed the best treatment and glory and wealth among all the princes and brothers, and without matching ability and heart, he deserved to be ousted.

Don't say that the prince is forced, if the prince is a good person, he will not be estranged from all his brothers; If the prince gets along with his brothers from the beginning, and his ability to keep up in the later stage is tolerant, who would dare to touch his beard?

Emperor Kangxi has the heart to sharpen the prince, but unfortunately, the prince can't help him, so he can't help it.

Look at Emperor Yongzheng, who has endured for decades, avoided the prince everywhere, has an excellent heart, not to mention ability, and is dedicated to the people, but unfortunately died early.

"Hmm. Yinzhen's face was calm, and his expression was light, "Huang Ama doesn't want our sons to threaten the second brother of the crown prince, whether it is power, money, or even excellence. Ye has been attached to the second brother of the prince all these years, but he feels that the second brother of the prince is estranged from him. ”

Wu Lingzhu heard Yinzhen say these words for the first time, and understood that he was not in his heart what Emperor Kangxi thought of him, but that he couldn't care; Emperor Kangxi had drawn a Chu River and Han border early in the morning, and they, the princes and brothers, were casually tossing and turning in this line, and it was not good to get out of the line.

"Master, don't think too much, you just need to stay neutral, you don't have to be attached to anyone, stay neutral, just like the fifth brother, regardless of everyone's competition. Wu Lingzhu thought this was also very good, "You are not very old now, take advantage of the prince's dislike for you, and put your position right." ”

At least in the later stage, you don't have to be dragged down by the prince, as long as you show a brother, friend and brother in a timely manner, so that Emperor Kangxi will not suspect him.

Yin Zhen was also thinking about this question, "Your idea is very good, it's just that the second brother of the prince will let the master go?"

"If you don't let it go, it's not okay, you put your attitude on the line, let Huang Ama know that it's not your fault, it's the prince's intention, even if the prince regrets it later, Huang Ama won't let you be the prince's support again." ”