In 60 BC, Caesar secretly formed the First Triumvirate with Pompey and Crassus, and later became governor of Gaul.
In 8 years, he conquered all of Gaul and also attacked Germany and Britain.
In 49 BC, he led his army to occupy Rome, defeated Pompey, concentrated power, implemented dictatorship, and formulated the "Julian Calendar".
Such a fierce man finally died in the Senate, stabbed to death by about sixty people.
Yang Gan would warn himself about this kind of thing in almost every battle and party.
Stay tight and don't wander.
It took a lot of effort to find a sense of security in Yuntong County and do some business. Now when going to a strange place, I have to plan carefully.
"Yu'er, do we have anyone in Tang country?"
Xiao Yu took a bone and kept chewing the marrow. He wiped his hands and said, "There was no one at first, but after your friend Lao Xia said it last time, I sent a caravan there. Calculating the time, it was already there. Put down roots.”
Yang Qian's eyes lit up and he said with satisfaction, "Okay, okay, intelligence must be fast, accurate and ruthless, it is related to our lives."
Xiao Yu smiled and said, "Young master, don't worry, these things are handled by our province. The secret agents sent out will still use the strategy you formulated. The three teams are scattered and not under each other."
Yang Gan nodded. This rule was set by himself. The intelligence system was built in too short a time. After a period of training, these intermediaries and secret agents were sent to all parts of the country and even to various vassal states.
Because of the short-term training, if someone is not professional or has a change of heart, more than one group of secret agents will be needed. This is the safest way.
"If there is any inconvenience, just say it. As long as it can be done, I will fully support it."
Yang Qian is very satisfied. No wonder the intelligence system cost me tens of thousands of dollars in less than half a year. The efficiency is impressive and he will not waste money in vain.
Xiao Yu took a deep breath and looked directly at Yang Qian, "Master, I don't know whether you should say something or not?"
"Hey, don't say goodbye, mother-in-law, mother-in-law."
"Last time I heard you telling Xiaoniang Zhang outside the door that there is something that can communicate over long distances. If there is such a thing, our intelligence agency can definitely defeat other countries, and even achieve decisive victory thousands of miles away. "
Yang Gan covered his head and looked at Zhang Yumeng with a look of despair.
Zhang Yumeng's mouth was filled with oil, and he sneered, "Don't think about it, the phone is not of this era. Even if I know the principle, I can't do it."
"Oh? Do you still know the principle?"
Zhang Yumeng wiped his hands and showed a watery expression on his face, "That thing is actually not difficult. If you want to make a phone, the first condition is a vacuum tube. If there is no vacuum tube, there is nothing else to say."
"Vacuum tubes? Is it difficult?" Yang Qian only knows about modern things, how can he do it? Come on, this guy who can't even make soap has never heard of a vacuum tube.
Zhang Yumeng suddenly covered his stomach and laughed, "Oh, you don't want to give up until you reach the Yellow River."
"When making vacuum tubes, there is one thing that cannot be avoided. You must have tungsten metal to make tungsten wire."
Yang Gan said indifferently, "Metal tungsten? Is it awesome? Is it more expensive than gold? I have money."
Zhang Yumeng rolled her eyes at him, "It's not about money. This thing is a cosmic metal with a melting point of 3400°. Can you melt it?"
Yang Gan opened his mouth, shook the corners of his mouth, and stopped talking for an instant.
Xiao Yu didn't know why and asked, "What does 3400° mean?"
(This chapter is not finished, please turn the page)
Zhang Yumeng said, "The temperature of metal smelting in Old Man Ouye's place is already very high. I believe that the major vassal states do not have such high forging furnaces, but the temperature is only 1500°~2200°. Metal tungsten needs to be melted at least 3400°, so Don’t even think about it.”
Not only Xiao Yu, but also Krisna, Belika and Feilian were frightened. The forge hosted by Ou Yexia, not only other countries, was simply a temperature that transcended the times.
Not only was there coal, but there was also water pumping in oxygen. The temperature was so high that even the flames turned into a hot white state, but Zhang Xiaoniang actually said it was not hot enough.
Yang Gan was a little disappointed, "It seems like we still need to get a homing pigeon or something."
He was a little unwilling to give up, and then asked, "Isn't it true that tungsten metal cannot be melted and cannot be replaced with a substitute?"
"Save it, using tungsten is the most realistic solution now."
Zhang Yumeng closed her eyes and said as if mumbling, "Actually, it's not impossible. If it can't be melted, you can use other methods."
"Extract tungsten powder (actually tungsten trioxide powder) from the ore and reduce it with hydrogen at high temperature to obtain pure tungsten."
"But we still face a problem. It's difficult to heat it to above 1,000° in a glass bottle because the melting point of glass is only 700°."
"But it's not a big problem."
Zhang Yumeng suddenly sat up, pushed aside the dinner plate on the table, took out a pen and paper and started writing.
Refining pure tungsten requires co-dissolution of scheelite and soda ash: a2a2wo4+cao+co2↑
Then add hydrochloric acid ha2wo4+2hacl+h2wo4
Add ammonia: 2h2wo4+10nh4oh→5(nh4)2o·12wo3·5h2o+12h2o
Thermal decomposition under oxidant: 5(nh4)2o·12wo3·5h2o=10nh3+12wo3+10h2o
The preparation method of hydrogen: h20—>h2↑+o2↑; after water is electrolyzed, it becomes hydrogen and oxygen.
Hydrogen reduces tungsten powder at high temperature to obtain pure tungsten wire.
wo3＋3h2＝w＋3h2o
"Pa~~~~"
Zhang Yumeng slammed the table suddenly, "Okay, we can make tungsten wire. I didn't expect that I haven't forgotten what I learned before. Fortunately, I remember the chemical formulas back then."
Yang Gan looked at the ghostly drawings on the book, and Zhang Yumeng asked curiously, "You don't recognize it?"
"Ahem~~~The chemistry scores were really not that good back then?" Yang Gan coughed awkwardly.
Zhang Yumeng held her head and murmured, "Don't be too happy. This is just tungsten wire. You also need a vacuum tube. To make a vacuum tube, you need to evacuate the air to the limit. You also need an auxiliary tool, a Hickman vacuum pump."
"Plastic is also needed. As for plastic, you told me last time that it can't be made at all, but there is an alternative method."
"Charcoal ash + sodium hydroxide + formalin is the original plastic."
...........
"Hey, do you think Miss Zhang is suffering from hysteria?"
"I think it looks a bit like it."
"Don't talk nonsense, haven't you seen the young master's face looking so serious?"
"Then what is the ghost talisman she drew?"
"I think she might be able to perform sacrifices, which is a bit like sacrificial rituals."
After Zhang Yumeng thought hard for a long time, he left
(This chapter is not finished, please turn the page)
He glanced at Yang Qian, "I took a look, and the result was beyond my expectation, but there is one more crucial thing."
Yang Gan showed a flattering expression on his face, "Come on, I asked you to design such an awesome thing. Is there anything you can't do? If you want to build a nuclear bomb tomorrow, I think it's normal."
Zhang Yumeng sneered and said, "Don't flatter me, this thing can't be used without electricity."
"Hydroelectricity?"
"Oh? You mean you can talk if you only have a river, but you can't talk if there is no river, right?"
"This..." Yang Gan became depressed. If this was connected to the river, how could he be restricted?
"Is there any other way?"
Zhang Yumeng smiled and said, "In the world of chemistry, nothing is impossible. Lead + sulfuric acid can be used to make batteries."
"Think about it for yourself, if you have a phone and a battery in a house, you just need to get a copper machine to generate electricity. It doesn't matter whether you crank it by hand or step on it."
Yang Gan's breathing gradually became heavier. There is an ancient saying that food and grass must go before the soldiers and horses move. Small assault troops do not count. Once the large army is dispatched, it is absolutely impossible to run out of food.
Once the food is mobilized, a phone call will report the information to myself thousands of miles away. Under my wise decision-making, I may kill someone without even preparing food and grass.
The same is true for rebellion. If someone wants to rebel, they may have just discussed it. With this phone technology, they have been captured before they can take action.
Almost everyone present looked at Zhang Yumeng with flushed faces, especially Yang Qian, who understood the role of the phone better.
If the Qin Dynasty had telephones, the Dazexiang Uprising would have been a joke. If there had been telephones, many loyal ministers would not have been killed in vain, and many unavoidable tragedies would have been avoided.
Perhaps sensing a different atmosphere, Zhang Yumeng sat up and said awkwardly, "Don't look at it. I can't do sulfuric acid for the time being."
Yang Qian's heart suddenly tightened, and the bronze wine glass in his hand was instantly crushed.
"I'll help you solve the sulfuric acid problem, and you can handle the rest, okay?"
Zhang Yumeng was surprised and said, "Can you still make sulfuric acid?"
"I don't know how to do it, but there are records in the books I read before that it can be made with either saltpeter or green vitriol."
Yang Qian took Zhang Yumeng's small notebook and quickly wrote down two sets of methods for making sulfuric acid.
Zhang Yumeng frowned and carefully checked the production process, and was surprised to find that although the manufacturing method was very primitive, it was indeed feasible.
"Awesome~~~Can't you tell that you, a guy who likes cold weapons and history, actually knows modern chemistry? Tell me, what kind of book is it?"
Yang Qian wiped his nose with his thumb and said proudly, "Actually, I am very powerful, but you have never noticed it."
Yang Qian's words made everyone present involuntarily nod their heads. The young master must be the most powerful. Every time he writes something, it can shock people for a long time.
"What book?" Zhang Yumeng looked annoyed. There must be a limit to how cool he can be.
"Heaven created something."
Zhang Yumeng nodded and said, "I admire you!!!"
Yang Gan looked around and said, "Don't tell anyone what we talked about today. Everyone, do you understand?"
Everyone looked at each other and said, "Do you think we understand?"
"I don't understand either. It's too profound."
"Anyway, we will never tell anyone what you said."
(End of chapter)
7017k
