Chapter 472
In fact, Song Qingyue was so anxious to get the telegraph line out because Li Zhao and the emperor were not together now, and she was afraid that You Xiaoxiao would take the opportunity to make trouble and talk nonsense in front of the emperor. It would be unpleasant to rebel against Li Zhao in the future!
After three days of experimentation, Song Qingyue found that the temperature for thermally reshaping smoke sheet latex is about 110 degrees to degrees, that is to say, the temperature of ordinary boiling water is enough.
In this way, the water bath sol is the easiest. Then they will use a copper wire with a diameter of about one millimeter to pass through the glue solution, and then quickly pass through the cold water area to cool down, so that the rubber solution will naturally wrap around the copper wire. outside.
The length of each copper wire is about ten meters, and then they will dip the copper wire in glue again, and wrap it with a second layer of insulating rubber.
Finally, for the wire leading to the capital, Song Qingyue planned to twist five such wires together, and finally wrap four to five layers of glue on the outside to ensure that the wire is not so fragile.
As for the power supply, it is another problem: Song Qingyue needs a relatively continuous and stable voltage power supply.
At present, there seems to be no better choice than steam generators.
With the previous experience in building steam engines for ships, it is enough to connect the steam power with the previous hand generator.
Finally, there is the problem of the representation of the current, because Song Qingyue can't make a useful buzzer at present, so she simply made the signal receiver of the terminal into an electromagnetic suction, which will close when it is powered on, and will automatically pop open when it is not powered. Then put a charcoal refill on the closed part, cooperate with a paper strip driven by a gear set to roll at a constant speed, and the binary signal can be automatically "printed" on the paper strip.
After completing the design of this series of devices, Li Zhao first pulled a route from the Wangfu to Taiyuan Qianwei.
The signals on both sides can’t use the same wire yet, so one line needs to pull three wires, one goes, one comes, and there is a spare line, which is a spare line in case there is a problem with one of the lines.
They have now decided to use elevated lines, which are low in cost and much easier to maintain. If they are buried underground, Song Qingyue feels that the current rubber covering is not up to the anti-corrosion standard.
Song Qingyue planned to use a wooden core wrapped with a cement shell for the stakes for erecting the wires. The height is about meters, which is not a height that ordinary people can touch casually.
The joints between the cement frame and the wires should also be reinforced with hot-melt rubber for secondary reinforcement. The current voltage of the generator is not very high, so there is no need to worry too much about leakage in rainy days.But when the power plant is really built in the future, how to contact and fix the wires on the cement shelf will need to be redesigned.
As for the development of binary signals, the development speed is also very fast. Li Zhao selected 2000 commonly used characters, and first compiled the commonly used Chinese characters according to the radicals into a booklet dedicated to telegraphy, with 20 characters per page, a total of 100 pages.
These 100 pages are divided into ten groups again, so each Chinese character can be expressed with a decimal code of four digits.
From 1 to 10 can be replaced by a four-digit binary number, plus two rests, each Chinese character needs eighteen characters.
Song Qingyue doesn’t know Morse code, so it seems acceptable to use 9 characters to represent a Chinese character. If two characters take one second on average, it takes about 50 seconds to transmit a word, and it takes about 7 minutes to input a -character briefing Half.
The efficiency is a bit low, but it is much faster than running from one place to another manually!
First make a line from Wangfu to Taiyuan Qianwei. The main function is to measure the resistivity of the current copper wire. If it is too high, it may heat up and cause the rubber sheath to melt. At this time, the diameter of the copper wire needs to be increased. .
Song Qingyue and Li Zhao tested for ten consecutive days, and felt that there was nothing wrong with the one-millimeter-diameter copper wire, so they wrote a booklet and went to the capital to let Dad start construction as soon as possible.
The No. experimental telegraph machine was delivered to the capital in late July. It just so happened that this year's math competition had just ended and the weather was at its hottest.
Along with the steam generator, two experimental electric fans hand-wrought by Song Qingyue were also sent to the capital, so that the emperor could enjoy the beauty of the electric motor before he could enjoy the telegraph.
The emperor built a power generation room at the west corner gate of the palace to house steam generators and fuel.Two transmission lines, one leading to the Office of Qinzheng Hall, and the other leading to the Sleeping Hall of Mental Cultivation, are respectively connected to two electric fans.
How original are these two electric fans?
It is so primitive that it doesn't even have a plug. It needs to manually wind two copper wires with the live wire and neutral wire of the generator, and then wrap it with rubber skin.
It is also impossible to adjust the speed and gear position. Just a wrench made of copper sheet, turn it to the left and insert the copper sheet under the wrench into a copper clip wrapped in the wooden casing below, which is considered to be powered on. .
It rattles when it turns, making a lot of noise.
The emperor, Song Jianming, Lu Zongli, Zhang Guangjian, Eunuch Yang, Fu Chengfeng, Song Chenxu, Yu Weiliang, Jiang Yuanchao, Shuai Jicheng, and Xiao Jinrong, the current leader of the mathematics department of the School of Science, all had the honor to come to Qinzheng Hall. Time to witness this miracle.
The emperor happily crossed his waist and looked up to the sky and laughed. Then he pointed to Zhang Guangjian and said that he planned to build a large power plant in the capital.
The Minister of the Ministry of Industry, Zhang Guangjian, was sweating on his forehead, and wanted to persuade the emperor not to be too impatient. The main reason was that he himself did not know much about the principle of this almost miraculous thing. No one in the entire Ministry of Industry understood it, let alone building a large-scale The power plant is gone, they don't even know the internal structure of the generator at the west corner gate of the palace.
Mr. Lu, Shangshu of the Household Department, was completely stunned, as if his brain was not enough.
In the end, Song Jianming, who had the deepest friendship with the emperor, boldly persuaded him: "Your Majesty, you need to discuss this matter with His Royal Highness and Princess Jin before making a decision."
The emperor nodded after hearing this, but still pointed at Zhang Guangjian and said: "First determine the location of the power plant, and plan the wires and circuits. I plan to connect the entire capital to electricity!"
"Your Majesty!" Zhang Guangjian hurriedly knelt down and bowed his head, "I don't know the key to such an important matter. I'm afraid I still have to ask His Majesty before I can make a difference!"
The emperor frowned and looked at Zhang Guangjian with his hips on his hips, and clicked his tongue: "You can always build the concrete pillar with a wooden core first, right?"
Ministers: …
What can His Majesty do with such a quick temper!
(Note: Hand-rubbing means hand-made, very primitive, and very rough. It’s a stalk on the Internet.)
In Taiyuan Palace, the restless Song Qingyue started to build primary schools and nursing homes in Taiyuan and the counties under the jurisdiction of Taiyuan after completing the feat of rubbing telegraphs and electric fans. Zhaoyue Bank, after calculating the labor costs, It only has branches in Taiyuan Prefecture and its two large counties with a population of more than 40.
It just so happened that as soon as August passed, the first batch of students of Zhaoyue Primary School was about to graduate.
Song Qingyue planned to arrange these students to come to Shanxi to be teachers.
Those with good grades will be arranged to go to elementary school, and those with poor grades will be arranged to go to a nursing home, be it a handyman or a teacher, the monthly silver given by Song Qingyue here is definitely considered a high salary in this era, even if you leave your hometown. Willing?
She was so busy, she completely forgot about the fourth brother who won the first prize in the mathematics competition, and didn't even send a congratulatory gift, but Li Zhao helped to send one by the way.
The number of participants in this year's mathematics competition has increased by 3 compared to last year, reaching as many as !
Now that all the people are frantically studying mathematics, those who can get the top 10 out of 24 people have to get a perfect score, and the competition is extremely fierce.
With a perfect score of 390 points, Song Chenrui got 11 three, ranking No.. Let's just say that he is a god who won the first prize!
Song Chenrui got the fifth-rank You Shaoqing from the Armed Forces Academy of the Ministry of Internal Affairs promised by the emperor, and suddenly became the most popular choice for her husband in the capital.Countless official media lined up to visit, Liang's face was flushed with joy, but Song Chenrui was worried!
His heart is now on that elder sister. If he married the girl next to him, wouldn't he feel sorry for her and the girl he didn't know before!
36 It’s best to move, so he imitated Li Zhao and Song Qingyue, took the bank notes, and the documents and official seals issued by the Ministry of Households, and sneaked on the horse early in the morning, and then he slipped away!
It wasn't until two days later that the Song family realized that the fourth young master had escaped!
Liang Shi was so angry that he covered his heart and panted, pointing to the south and yelling at his unfilial son.
(End of this chapter)
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