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At this time in the Internal Supervision Research and Development Department, Huang Sheng and others were extremely excited.
I still remember that when Li Yi, 14 years old, was curious, he wrapped a copper wire around an iron rod. After turning on the power, he found that the iron rod, which originally had no magnetic force, actually had magnetic force and could attract the small iron nail next to it. Once the power was turned off, the magnetism of the rod disappeared and the iron nail fell off.
At that time, everyone just thought it was novel and no one thought about what use this electromagnet could be.
Today, Huang Sheng had an idea. A groundbreaking invention was most likely created by the curiosity of a fourteen-year-old boy.
In the Internal Supervision Research and Development Department, generators, batteries, copper wires, and iron rods were all readily available. Huang Sheng personally worked on it, using a hammer to hammer out a two-inch-long thin piece of iron.
Li Yi was watching from the side, and suddenly said: "Master Huang, I thought about it, what you just said is to use the naked eye to observe the length of time the iron sheet is pressed down to determine the content of the code;
The character "加" should be replaced by one short and four long strokes, and the character "急" should be replaced by two short and three long strokes. In this way, the person observing the iron sheet has to count the number of times the iron sheet is pressed down, and remember the duration of each press, which is easy to make mistakes.
Mr. Huang, to make it easier to observe, I think you can clamp a pencil at the front end of the iron sheet, then put a belt in front of the pencil, clamp a piece of paper on the belt, and let the belt with the paper pass along the charcoal at a constant speed;
In this way, when the iron sheet rises and falls with the power on and off, a battlement-like line can be drawn under the paper. The shorter the time the iron sheet is pressed down, the shorter the line below will be, and the longer the time the iron sheet is pressed down, the longer the line below will be.
When we get the code, we don't have to worry about remembering it wrong. We just need to take a look at the paper and compare the length of each pile-like line. We can translate the content according to the preset code book."
"Good, good, this is a good idea, let's do it!" Huang Sheng liked this young man more and more, and praised him highly on the spot.
The Chinese have been using lead for a long time, and Qin Mu had pencils made long ago. Now, whether it is the Ministry of Industry or the Internal Supervision Research and Development Department, they use rulers, compasses, and pencils to draw, and then mark the detailed dimensions. Such drawings are formal and no longer as "freehand" as the previous drawings.
Huang Sheng immediately found a pencil and wrapped it tightly around the iron sheet. He left the rest to his assistants. He found a piece of white paper and wrote the four words "Long Live My Emperor" on it. Then he used dots and horizontal lines to make a code under the four words. The word "I" was represented by "—,,,,"; the word "Emperor" was represented by ",—,,,", and the four words were roughly the same, except that the order of the "—" was different.
In less than an incense stick of time, several assistants made the world's first transmitter and receiver. The transmitter was so simple, just like a clip, when the clip was pressed down, the power was turned on, and when it was released, the power was turned off.
As for the receiver, it was also very simple. A "7" device was installed on a wooden board. The horizontal line above the "7" was an iron sheet that could move up and down. The iron sheet was long and stretched over an electromagnet. There was a wheel on the left and right in front of the iron sheet, with a belt on it, and white paper was clamped on the belt. There was also a small light bulb. It was that simple.
"Start the experiment!" Huang Sheng had never been so excited before, as if he had been injected with chicken blood, his hair standing on end. This roar almost shook off the tiles of the entire Internal Supervision Research and Development Department.
The transmitter and receiver were placed in different rooms, about twenty meters apart, and connected by two thin copper wires.
Everyone gathered around to watch, it was so lively. "Quiet, quiet." Huang Sheng shouted, and then personally checked whether the battery and the transmitter were connected properly. Then he took out the telegram he had compiled, took a few deep breaths, and started to send the message. He pressed his index finger lightly, and a "beep!" sounded. Once the transmitter sent the message, it meant that the power supply of the electromagnet was connected.
In the room where the radio was waiting, Li Yi and others were waiting attentively. They saw the iron plate of the radio suddenly pressed down and a small light bulb lit up at the same time.
Don't be anxious. The small light bulb lit up just to notify us to prepare to receive the message. After the small light bulb lit up three times, Li Yi immediately said, "Quick, quick, cut off the light bulb circuit." While shouting, he began to rotate the belt evenly. After another five seconds, the iron sheet of the receiver began to move.
The electromagnet generates magnetic force to suck the iron sheet down, making a "tapping" sound. Once the power is cut off, the iron sheet will be bounced up again by the spring. The iron sheet keeps rising and falling, and the pencil clamped by the iron sheet draws a curve similar to an electrocardiogram on the white paper clamped on the belt.
Everyone held their breath, listening to the "tick-tick" sound, feeling that the sound was so beautiful, more beautiful than the fairy singing. Li Yi carefully counted silently, and after twenty "tick-tick" sounds, the receiver stopped ringing.
Huang Sheng on the other side was like a running bull, rushing over like a mad bull, killing gods and Buddhas who stood in his way. “How is it?! How is it?! Did you receive it? Did you receive it?!”
"Got it! Got it! Mr. Huang, look, look..." Li Yi's voice was a little trembling, and his hands were shaking too. He finally took off the white paper clipped on his belt.
Huang Sheng snatched the white paper and looked at the line left on the white paper. Although it was very faint, it was clearly recognizable. At this moment, Huang Sheng's pupils suddenly dilated.
The curve on the white paper was so beautiful, more beautiful than the curve of a woman's breasts, which made the blood in his body surge. Well, Mr. Huang hasn't been home to see his wife for half a month, everyone should understand, understand more.
With a "whoosh", Huang Sheng sat down with a white paper and carefully compared the length of the curve below. The short one was a V-shape, and the long one was a trapezoidal bottom that was wide at the top and narrow at the bottom.
The V-shape represents a dot, and the ladder-shaped bottom represents a horizontal line. Through the 50:50 combination of the dot and the horizontal line, the final translation is four words: Long live the emperor.
"Long live the emperor! Long live the emperor! Long live the emperor..." Han Zanzhou looked like he had mad cow disease, and he kept shouting as he ran towards the Jianjia Palace.
Qin Mu heard his voice from afar in the Jianjia Palace and could not help but frown. When Han Zanzhou arrived outside the palace, he immediately shouted, "Old Han, are you okay?"
"Your Majesty! Your Majesty! Great joy! I congratulate Your Majesty. Congratulations to Your Majesty. The telegraph machine has been developed. It has been developed..."
Qin Mu was still a little slow to react. He took a sip of tea, but suddenly spat it out halfway through swallowing it. He suddenly stood up, slammed the table and shouted, "Old Han, if you are not dead, get out of here! Tell me, has the telegraph really been developed?!"
Han Zanzhou held two pieces of white paper in his hands. On one of the pieces of paper was written the four words "Long Live the Emperor" with some horizontal dots below the words. On the other piece of paper was a line of undulating curves.
At first glance, Qin Mu didn't quite understand what the things on the two pieces of white paper meant. After Han Zan Zhou Yi explained, the blood in his body began to rush to his head.
That... ... ... Although a certain "holy king" is not like Huang Sheng, who does not go home to see his wife for half a month, he is still a young man in his twenties after all, so it is understandable that he is a little hot-tempered... ... ..
"Your Majesty, do you still remember Li Yi? He invented the electromagnet last time. The main purpose of this receiver is to use the principle of the electromagnet to control a piece of iron to move up and down, and draw this curve."
The principle is very simple, and Han Zanzhou also worked hard before coming here to understand the principle of the transmitter. This is a must-have trick for promotion and wealth. Otherwise, when you come to report good news and the emperor asks you, you don't know anything. In a fit of anger, you might turn the good news that will get you promoted into bad news.
"Li Yi, that boy..." How could Qin Mu not remember that time when Li Yi invented electromagnetism? He also thought of the electromagnetic crane of later generations, which was a big iron plate that could suck up a car with a snap.
He was determined to make a wireless telegraph, and he didn't know how a wired telegraph worked, so he didn't understand what the emergence of electromagnets meant.
Now that I can't make a wireless telegraph, I can make do with a wired telegraph. By the way, the battery power is not strong now, how far can this telegraph transmit? If it can only transmit a few dozen steps, it's better than my roar.
"Come on, let's go to the R&D department."
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ps: I upload everything as I code, so the update time is uncertain. Here is the second chapter. I will continue to write. If I am fast, there may be another chapter tonight. Please give me some monthly tickets to help me keep the seventh place in the monthly ticket list. The seventh place can get one thousand dollars. I have tried my best and still have a few more miles. I will continue to write. Please give me monthly tickets! (Want to know more exciting news about "Ming Yang Tian Xia"? Open WeChat now, click the "+" sign in the upper right corner, select Add a public account in Add Friends, search for "zhongwenwang", follow the public account, and you will never miss any updates! qdzww)(To be continued..)
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