Release that Witch Chapter 1347: Crying of freshmen
"Really?" Roland couldn't help but be pleased. Listening to the tone of Barov, it was clear that the facilities were not only so simple, "You heard the signal?"
The so-called iron tower project is the first step of the radio communication plan. In order to meet the huge antenna required by the long wave, Ministry of Construction has set up nearly 50 meters high transceiver towers in Northern Slope Mountain and Silver Light City. Fiction. More than half of the towers are only the thickness of an adult body, so they look like a long, thin needle from a distance. With the retractable hot air balloon towing wire, the antenna length can reach more than 100 meters.
As far as the difficulty of construction is concerned, it doesn't have much praise, but the communication tower is a system project, and the transceiver equipment located below high tower is the focus. Because the electromagnetic wave will inevitably be emitted many times during the debugging process, even if it is a chaotic signal, it is normal to be caught by the other side in a world without any interference.
"Exactly, Your Majesty." Barov replied excitedly, "It does indeed have some kind of spontaneous response spontaneously like you said at the moment. But ... I don't know if it was caused by Silver Light City. "
"I think this question will be answered soon." Roland groaned for a moment, "notify the Ministers of the Executive Office to go with them, they should not be willing to miss this opportunity to witness history."
...
After several years of development, Northern Slope Mountain is no longer the precipitous mining site with only a few narrow mountain roads. The wide concrete road and railroad tracks are built along the slope. It only takes a quarter of an hour to reach the summit by train.
Not far from the iron tower is a simple row of red brick cottages. The low eaves are lined with icicles, which look far less impressive than those of the new factories on the south bank of Scarlet Water River. In terms of appearance alone, it is difficult for anyone to associate it with the "new era."
Walking into the house, Anna is directing the Sandpeople of the original Wonder Objects Society to make the final preparations. When she saw Roland, she secretly compared the gesture of "all right" and then devoted herself to work seriously.
Roland couldn't help but grin.
Early when the radio plan was finalized, the matter caused heated discussions in the Executive Office. Most people are well aware of how the project will change the human world. If the message can be delivered, it will be a great enhancement in terms of war strength and control of Neverwinter City.
Wired phones, flight messengers, and Listening Sigil are proof that under the combined action of the three, the old noble forces of Greycastle's have hardly found any chance to make a comeback. Many officials thought that centralization would be a long and iterative process, but the fact After they were overthrown by First Army, they have not been able to set off any waves so far. The reason is that in the face of efficient information transmission, noble will be annihilated by Second Army and even the police force as soon as it shows a little sign, leaving no room for development.
However, the telephone has a wire. The latter two are related to magic power, and officials can barely understand it. But the tower project not only does not have any line connection, but the theoretical effect is stronger than magic power's creation, which really makes people feel a little incredible. Although there is a basic introduction to electromagnetic waves in textbooks for elementary education, learning can be learned, and many people still have doubts about this invisible and intangible thing. In a sense, it is more imaginative than a biplane.
Of course, this heated discussion will not affect the actual progress of the project. After all, under the guidance of Roland, there are too many things that can be called miracles in Neverwinter City these years, even if he suddenly announced that he would board Red Moon, The Office of Administration will also go all out.
It's just that radio is not his specialty after all, and it's not as big as R & D machinery and equipment. This set of transceivers is also completely copied from prototype of Greycastle Design Bureau. No one knows the actual effect. With the gesture of Anna, he finally didn't have to worry about losing face in front of the ministers.
"So, let's get started."
Roland took Anna's hand and took her to the transmitter.
"Uh ... Roland?"
"This is the crystallization of the engineering department. Of course you are the first tester." He blinked at the other party. Although she knew in advance that she had confirmed the feasibility of the communication during the commissioning process, it will be recorded in the history books and it must be the next formal test.
"There is still a receiving place, who would you like to experience first?"
Barov and others looked at each other and raised their hands, "Your Majesty, let me come!"
After some scramble, the old Prime Minister, with its deepest qualifications, successfully killed the crowd and became one of the "first" testers of long-distance telegram communications.
Theoretically, the transmission and reception of a telegram can be done by one person, but separation at this time is obviously easier to verify the test results. For the person who has never seen the radio, the most critical point is how to make it I believe that the other side, hundreds of kilometers away, really received the message transmitted here? The easiest way is to let an unsuspecting receiver telegram to report information that should have been known only to the sender.
Roland will briefly describe the test method, so that personal guard blindfolded Barov. Anna draws three horizontal and two dots on a small blackboard. The horizontal represents long sound and the dot represents short sound.
While everyone is sure, she presses the key of the transmitter.
Three long and two paragraphs.
The moment the circuit was switched on, a bright blue light bloomed in the center of the spark gap.
Because the buzzer is not connected to the key, there is no other movement in the room except this light.
Everyone couldn't help holding their breath. This arc was so small that it was hard to see outside the house, let alone Silver Light City, which was hundreds of kilometers away.
Roland can't help but raise goose bumps.
At that moment, he seemed to feel something passing by his body.
There is no doubt that it is an illusion. Under the low power situation, the electromagnetic wave will not have any effect on the human body. But in his mind, everything had become clear and recognizable. The electric fire seems to be fleeting, but the current passed out repeatedly oscillates between the inductor and the capacitor, up to tens of millions of times per second. The rapidly changing electric field spreads rapidly along the antenna and the ground, and extends in all directions Spread out.
In this silent world, it is a cry from human beings. No one can hear it, but it is louder than any sound in the past.
Even after flying for hundreds of kilometers, this wave has not disappeared, and it is recorded truthfully by the Silver Light City antenna.
It is greeted by two receivers.
An old powder detector captured the electromagnetic waves, and the metal powder in the glass tube changed from loose to condensed. This caused the electrical resistance in the circuit to drop suddenly, and the light bulb that had been extinguished had a soft yellow light. Its biggest role is to inform the listener that the cry is echoing above the dome.
The other is an ore detector. It does not require any external power supply and is always in a listening state. A piece of galena and the inserted wires 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.
Under the situation without beep modulation, it does not make a crisp and pleasant ticking sound, but still accurately reproduces the frequency when sending.
Then this process is reversed.
Distance is no longer a problem, it is as fast as light, or it is light itself.
Anna repeated three times and released the key.
According to the agreement, if Silver Light City receives the subpoena here, it will send an identical message. If it is a conventional way to send 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 to replace it with a flying messenger.
But the moment the Anna put down the key, the light receiving machine turned on.
It's 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 wrote down the message he heard on the paper.
When he took off the earphones and blindfold, he no longer had to ask the test results from the surprised eyes that everyone showed. The answer is self-evident.
The marks on the paper are exactly three horizontal and two dots!