Short video spoiler history: The beginning of modern warfare

Chapter 92 Phonograph and Records
Ming, Jinling City.

In the Science Department, Sun Chuanshi, Du Ping and others frowned and thought hard. It was obvious that wireless communication technology should be used in the sky curtain. What exactly is this wireless communication technology?

People can only start from wired communications, which use circuit switches to transmit information. Can radio achieve this effect?

Or in other words, what phenomena of electricity and magnetism are we not yet utilizing?

Zhu Yuanzhang asked someone to pass the snacks on his desk to Sun Chuanshi and others.

This seems like a small move.
Everyone present was a smart person and they immediately smelled something different.

Your Majesty appoints people based on their merits, and the Ministry of Science is only roughly divided into several departments. There are no suitable candidates for the left and right vice ministers and the minister. It seems that the government is going to promote Sun Chuanshi or Du Ping?
Hu Weiyong also carefully observed several more outstanding people in the Science Department. Overall, he felt that Sun Chuanshi had a greater chance.

This man who climbed up from the position of a minor official was more experienced and knowledgeable than others who were admitted from the Imperial College, and he also had ambitions to climb up.

Your Majesty considers ability first when employing people, regardless of their background. Given the importance Your Majesty places on the Ministry of Science, whoever can become the Minister will have a bright future.

In this atmosphere of everyone having their own thoughts, the sky curtain changed again.

[It turns out that there is an even more outrageous story behind every outrageous school rule]

[A classmate said that their school forbids girls from stealing pants, just because a beautiful girl sneaked into the boys' dormitory in the middle of the night to steal pants]

[It turned out that she often had nightmares and heard that boys' underwear could ward off evil spirits, so she had evil intentions. The school had no choice but to modify the school rules overnight to prohibit girls from stealing underwear.]

[A university in Sichuan has issued a clear ban on students drying quilts on sculptures, just because a student covered the statue at the school gate with a quilt. The statue, which originally symbolized punishing evildoers, suddenly changed its style after being covered with a quilt. It was simply disgraceful in broad daylight.]

[There are also schools that do not allow students to test their blood types in lab classes because a student found out that he was not his parents’ biological child after testing his blood type. In the end, the student’s parents sued the school.]

[There is also the following school rule that students are not allowed to carry backpacks into school. This is because a child wanted to show off his two-month-old sister, so he put his sister in his backpack and brought her to school. The teacher didn’t find out until the baby cried out of hunger. Her parents at home were so anxious that they called the police.]

[The following one is even more outrageous, directly prohibiting students from asking others for preserved eggs online. It turns out that there is a guy selling preserved eggs online, and a college student in the comment section said, "I'm a student, can you give me some?"

[The brother asked which school the student was from, and the student answered the Polytechnic Institute. So the brother directly tagged their school: Control your students. If they dare to ask for it today, they will snatch it away tomorrow. I feel like the school has lost face because of this embarrassing guy.]

Ming, Jinling City.

Zhu Yuanzhang watched happily because Biaoer loved to watch it. Biaoer might be longing for the friendship of friends or the free atmosphere, he couldn't tell, but every time he saw this kind of video, Biaoer always watched it seriously.

If Biaoer were born in later times, he would probably be able to go to college by now, right?
Zhu Yuanzhang thought so, and he also knew that the atmosphere in universities in later generations was quite relaxed, as if there was nothing to do every day, with endless games of Honor of Kings, endless gossip, endless nanny Wang Ma in the domineering CEO dramas, and endless girl groups to watch.

There is also Jay Chou who can't stop listening to him. Even the rough warriors have learned to hum some of his songs, such as: Turn around and leave, you have nothing to say, and the blue coral sea.
Hu Weiyong also looked relaxed at this time, and unconsciously smiled like an aunt.

The social atmosphere in later generations is quite open, so it is difficult to comment on such behavior as stealing pants. It is hard to tell who is at a disadvantage at the moment.

He himself does not envy these students, but he wants his son to go to such high schools and universities so that he can experience and feel the atmosphere of freedom.

Among the civil officials and military generals, almost all of them have had this extravagant idea. They don’t care about it themselves, but what they give to their sons and grandsons must be the best.

Xinglong Restaurant.

At a table in the corner, a man with dark circles under his eyes put down his wine glass drunkenly, shook his head vigorously, and stared at the sky with blurry eyes. A blood type test would tell whether the child was his biological son or not.

Blood type test.
The man fell to the ground drunkenly, mumbling intermittently: "Blood type test. Stinky woman. The second-rate guy next door."

[Another classmate revealed that the school banned fishing in school because someone caught all the 300 koi fish that the principal had spent a lot of money on in just over a month, and no trace of the fish was found. The case has not been solved yet.]

[There are also strange school rules in the medical school. The school prohibits students from snatching corpses from each other and is not allowed to dissect classmates at will.]

[In addition, there are some school rules that allow people to see the stories behind them at a glance]

[For example, it is forbidden to use the prosthetic limbs of disabled classmates to hit others, it is forbidden to put classmates into the water dispenser, and it is forbidden to have a romantic relationship with the dormitory auntie]

[But the most outrageous one is the following school rule]

[Students are prohibited from closing or taking away water valves without permission. One student thought the noise of washing at night was too noisy, so he closed the water valve at 11 o'clock every night.]

[The school would open the water valve at 6 o'clock the next morning, and kept doing this for three years. If the school had not unexpectedly won the honor of being a water-saving university, I'm afraid all the teachers and students would still be kept in the dark.]

Tang Dynasty, Guiyifang, Chang'an City.

Many children gathered in groups of three or four with their little stools. This is the most fun day of the month.

At this time, when Tianmu mentioned that someone had caught all the fish belonging to the principal, he couldn't help but grin and laugh: "A fisherman never comes back empty-handed."

"Brother, I also want to go fishing for the dean's fish."

"I want to go too, I want to go too!" x4
The older boy endured the nausea and pinched off the snot that was still "slurping" in and out of his brother's nose, then threw it to the ground, glanced around to make sure there was no one around, and finally smeared the remaining snot on the outer wall of Aunt Zhao's house.

Turning back, he said helplessly to the group of little kids who were hiding far away and had not yet officially enrolled, looking at their eager eyes, "But there are no fish in our college!"

“Oh, what a pity!”

"But!" the boy was very proud and deliberately dragged out the ending of the sentence, causing a few little kids to chase him and want to join in.
[Recently, there has been a trend of making your own phonograph. Let's see how they make it.]

In the sky, the man was seen shaking the wheel with his right hand. The paper cup on the microphone was rotated and slowly pushed over. He put his mouth close to the simple speaker made of the paper cup and started singing.

【Hey Jude, don't make it bad】

【take a sad song and make it better】

【remember】

[Then he removed the microphone and turned the cup back to its original position so that it could play and he could hear the song again.]

【.take a sad song】

[Although the volume is very low and the sound quality is very poor, why can a small plastic cup record? Today, let's explore the mystery] [In fact, to put it simply, the essence of sound is the vibration of the air. If you collect this vibration, it is recording, and if you restore the recording to air vibration, it is playback]

[The device at the beginning of the video is a simple phonograph device. There are two key components on the phonograph, one is the stylus and the other is the cartridge]

[The stylus is connected to the diaphragm. When sound enters the speaker, the diaphragm vibrates up and down due to the sound waves, and the stylus also vibrates up and down. After contacting the drum, the sharp stylus will carve deep and shallow grooves on the surface of the drum.]

[Then reset the drum, and the stylus will follow the groove just now, and the vibration will be expressed again, thus producing sound]

Ming, Chang'an City.

After disassembling and analyzing the sky screen, both those who know how and those who don’t feel that they have learned it. Its essence is to record the amplitude and frequency of sound vibrations. Isn’t this possible with just hands?

Hu Weiyong felt that he was now so powerful that he was just about to rub one with his hands on the spot.

Zhu Biao looked at Tianmu happily. The song sung by Tianmu was affectionately called "Hey, Zhu Di".

Although the sound reproduced by their phonograph was very small and the sound quality was what the barrage said was "total loss quality", he still heard nonsense like ".take a sad song", even though he didn't know how to pronounce it.

So, this phonograph really works, what can it do?

Sing?

后宫中，小朱棣也看到了这些弹幕，他对天幕实在是爱恨交织，自从天幕有鼻子有眼说他会造反后，三天两头就被父皇揍。

If his royal brother hadn't stopped him, his butt would have been broken into eighteen pieces.

But this matter is really unfair. It was Zhu Di who rebelled in the first year of Jianwen, so why should Zhu Di, who lived in the fourth year of Hongwu, bear the consequences?

At this moment, looking at the barrage of "Hey, Zhu Di" flashing across the sky, I was confused for a moment. Why does it seem like I am very popular in later generations?

In Jinling City, Liu Laosan's electrical appliance store is a newly opened shop. Liu Laosan used to be a carpenter.

Since the various inventions involved in the skylight were very simple, he decisively changed his career and opened an electrical appliance store. The income from selling generators and electric fans alone was enough for him to earn in two months from working as a carpenter for more than a year.

However, as more and more electrical appliance stores opened in Jinling City, the prices of generators and electric fans gradually dropped, and the profits were not as high as in the previous two months.

Fortunately, sales have improved a bit, because the imperial court has issued an order prohibiting the public from supplying the electricity they generate to others. To put it simply, "electricity" must be taken over by the imperial court and operated by the government.

So there were rumors that the court was going to start laying electric wires, and all kinds of gossip were spreading with details and details, and it was vowed that the electricity would be spread throughout Jinling City by the end of the year at the latest.

Many people are full of expectations and have bought some electrical appliances, such as electric fans, just waiting for the day when electricity will be available.

At the same time, some people also bought generators. This thing is not complicated and many people can make it themselves. Buying it in an electrical appliance store is just for convenience.

At this time Liu Laosan quickly asked someone to draw the structure of the phonograph. The difficulty of the phonograph actually lies in the surface material of the cartridge. If it is too hard, the needle cannot make grooves of varying depths; if it is too soft, the grooves will be easily erased.

Liu Laosan didn't care. If they could do it with a paper cup on the skylight, why can't we do it?
[You can also use a motor instead of a hand crank, just control the rotation speed. If you want to play at twice the speed, increase the speed]

[The earliest appearance of the phonograph can be traced back to 1857, but at that time the phonograph could only record but not reproduce the sound]

[It was not until 1877 that the inventor Edison got inspiration from the template vibration of the telephone transmitter and invented the world's first talking machine]

[The original phonograph used wax cylinders as recording media, which later evolved into vinyl records. Vinyl records were not engraved one by one during production, but were more like printed out of a template.]

[First, you need to burn the most original master disc, clean it thoroughly, plate it with a layer of silver to make it a semiconductor, and then place it in an electrolytic tank and repeatedly plate it with nickel to form a 0.3 mm metal layer on its surface. This is the relief plate that will be mass-printed.]

[Generally speaking, a record has two sides, ab, so there are two master discs and two templates]

[Then the black PVC plastic particles are melted and solidified, and then squeezed between two templates to form a record. Finally, it is cooled, tested, and packaged. Only then is the record officially completed.]

Tang Dynasty, Chang'an City, Pingkangfang is full of spring.

The madam, Mrs. Chen, was so happy that she couldn't close her legs.

As early as a year ago, she asked a Feng Shui master to choose a date, and Chun Manting's first girl group "Girls' Generation" officially debuted.

But her heart was bleeding as she lost several pillars at once, because she couldn't sell them at a good price. With the same specifications, she lost several pillars at once. Her peers, big and small, in Pingkangfang, such as Yichunyuan, Paris Courtyard (formerly Xinyue Cottage), etc., were all staring at her laughing stock.

Her idea was to build up her fame, cultivate FS stickiness, and then follow the model of holding concerts in later generations.

She just had no better means to promote her ideas. Now the advent of the phonograph helped her find her direction.

Records.

As long as the sales volume is large, not only can you make a lot of money from the records, but you can also gain fame and cultivate loyal fans. It's really making a lot of money.

In a Parisian courtyard.

"How shameless! You actually stole someone else's name!" The brothel owner, Mother Qin, rolled her eyes, but was overtaken by the shameless woman Chun Manting.

At this time, I was silently calculating that once the phonograph and records came out, it would be another lot of money.

After all, singing to a group of people is the same as singing to the people in Chang'an City or Luoyang.

Besides, it is not necessary to sing it so many times. Maybe it is not even important whether it is sung for real.
"That's wonderful." Mother Qin vaguely felt that this business model was very different from her previous experience, but she couldn't put it into words, and she was not in the mood to think about it. At this moment, she wanted to find someone to make the phonograph and records immediately.

"I wanted to make one myself after watching the beginning, but then I realized it wasn't going to work. "

"Black Pig~"

The principle of vinyl is so simple, but the price of vinyl is much higher than that of electronic storage media. Is it driven by capital or the pursuit of human sense of ritual?

"Because vinyl records are obsolete technology, they need to be re-made into molds, and the production volume is small, so the price is high."

(End of this chapter)