"Really?" Roland couldn't help but be overjoyed. Hearing Barov's tone, it was clear that it was not just that the facility was built. "Did you hear the signal too?"
The so-called iron tower project is the first step of the radio communication plan. In order to meet the huge antenna required for long waves, the Ministry of Construction erected a nearly 50-meter-high transceiver tower in Beipo Mountain and Yinguang City. Fiction. More than half of the towers are only about the thickness of an adult's body, so they look like a long, thin needle when viewed from a distance. With the retractable hydrogen balloon dragging the metal wire, the length of the antenna can reach more than 100 meters at most.
In terms of construction difficulty alone, it does not have much to praise, but the communication tower is a systematic project, and the transceiver equipment located under the high tower is the focus. Since electromagnetic waves will inevitably be emitted many times during the debugging process, even if it is a messy signal, it is normal for it to be caught by the other side in this world without any interference.
"Exactly, Your Majesty." Barov replied excitedly, "It does have some kind of wonderful reaction spontaneously as you said. It's just... I don't know if it was caused by Silver Light City. "
"I think this question will be answered soon." Roland pondered for a moment, "Notify the ministers of the Executive Office to go together. They should not want to miss this opportunity to witness history."
…
After several years of development, Beipo Mountain is no longer the original precipitous mining area with only a few narrow mountain roads. Wide cement roads and railroad tracks are built along the slope. It only takes a quarter of an hour to reach the top of the mountain by train.
Not far from the iron tower, there is a row of simple red brick bungalows. In terms of appearance alone, it is difficult for anyone to associate it with the "new age".
Entering the house, Anna was instructing several sand people from the original Fantastic Item Society to do the final preparations. When she saw Roland, she secretly made a gesture of "everything is right", and then went back to work seriously.
Roland couldn't help grinning.
As early as the beginning of the radio plan, the matter caused heated discussions in the Executive Office. Most people can clearly realize what kind of changes this project will bring to the human world. If the message can be delivered, it will be a great enhancement to both the strength of the war and the control of Neverwinter City.
The wired telephone, the flying messenger and the listening talisman prove that under the combined effect of the three, the old aristocratic forces in Greycastle have hardly found any chance to make a comeback. Many officials once believed that the centralization of power would be a long-term and iterative process, but The fact is that after they were overthrown by the First Army, they have not been able to make any waves so far. The reason is that in the face of efficient information transmission, the nobles will be annihilated by the Second Army and even the police force as soon as they show signs of it, leaving no room for brewing and development.
But the phone has a root line anyway, and the latter two are related to magic, which the officials can barely understand. But the iron tower project not only does not have any line connections, but also the theoretical effect is stronger than the magical creation, which makes people feel a little incredible. Although there is a basic introduction to electromagnetic waves in elementary education textbooks, learning can be learned. Many people still have doubts about this invisible and intangible thing. In a sense, it's more than a biplane can imagine.
Of course, this kind of heated discussion will not affect the actual progress of the project. After all, under Roland's guidance, there are too many things that can be called miracles in Neverwinter these years, even if he suddenly announced that he would go to the red moon, The Executive Office will also do its best.
It's just that radio is not his specialty after all, and his grasp is not as big as the development of mechanical equipment. This set of transceivers is completely copied from the prototype of the Greycastle Design Bureau, and no one knows the actual effect. With Anna's gesture, he finally didn't have to worry about losing face in front of the ministers.
"Then let's begin."
Roland took Anna's hand and led her to the transmitter.
"Uh... Roland?"
"This is the crystallization of the engineering department, of course you are the first tester." He winked at the other party. Although it was known in advance that she confirmed the feasibility of communication during the debugging process, what will be recorded in the history books must be the next official test.
"There is also a receiving location, who of you would like to experience it first?"
Barov and the others looked at each other, raised their hands and said, "Your Majesty, let me come!"
After some scramble, the old manager, with the deepest qualifications, successfully broke out from the crowd and became one of the testers of the "first" long-distance telegraph communication.
In theory, the transmission and reception of telegrams can be completed by one person, but it is obviously easier to verify the test results when separated at this time. For people who have never seen radio, the most critical point is how to convince them that the data Did the other end a hundred kilometers away really receive the information sent here? The easiest way to do this is for an unsuspecting recipient to telegraph information that should only be known to the sender.
After Roland briefly explained the test method, he let the guards blindfold Barov. Anna drew three lines and two dots on a small blackboard, with the lines representing long notes and the dots representing short notes.
After everyone confirmed it was correct, she pressed the key of the transmitter.
Three long and two paragraphs.
The instant the circuit was switched on, a bright blue light burst out from the center of the spark gap.
Since the key is not connected to the buzzer, there is no other movement in the room except for this light.
Everyone involuntarily held their breath. This arc is so small that it is difficult to see it from outside the house, not to mention the Silver Light City, which is hundreds of kilometers away.
But Roland couldn't help but get goosebumps.
At that moment, he seemed to feel something passing over his body.
There is no doubt that it is an illusion. In the case of low power, electromagnetic waves will not cause any effect on the human body. But in his mind, everything was embodied in a clear and recognizable picture. The electric fire seems to be fleeting, but the transmitted current oscillates repeatedly between the inductor and the capacitor, up to tens of millions of times per second. spread out.
In this silent world, it is a cry made by human beings and no one can hear it, but it is louder than any sound in the past.
Even after flying for hundreds of kilometers, the waves still did not disappear, and were truthfully recorded by the antenna of Silver Light City.
It was greeted by two receivers.
After an ancient powder detector captured electromagnetic waves, the metal powder in the glass tube changed from loose to condensed, which caused the resistance in the circuit to drop abruptly, and the light bulb that had been extinguished burst into a soft yellow light. Its biggest function is to inform listeners that the cry is echoing over the dome.
The other is an ore detector. It does not require any external power supply and is always in the state of answering. A piece of galena and the inserted wire form a natural semiconductor-like semiconductor. The energy radiated by electromagnetic waves forms a weak current inside it. You must wear headphones to hear the sound.
Without the beep modulation, it's not a crisp, melodious click, but it still reproduces exactly the frequency it's sending.
Then the process is reversed.
Distance is no longer a problem, it is as fast as the light is, or rather, it is light itself.
Ana put down the key after repeating it three times.
According to the agreement, if Silver Light City receives the message from this side, it will send an identical message. If it is a regular way of mailing a letter, it will take about five to seven days to complete a round trip between the two places, and it will take at least one day if it is replaced by a flight messenger.
But the moment Anna put down the key, the light on the receiver turned on.
Only a few seconds before and after!
There was a commotion in the crowd.
The blindfolded Barov knew nothing about it. He listened for a long time, and finally slowly wrote down the message he heard on the paper.
When he took off his earphones and blindfolds, there was no need to ask about the test results. The answer was self-evident in the surprised eyes from the crowd.
The mark on the paper is exactly three horizontal and two dots!