Heavenly Dao Formula Chapter 215: First cry
The essence of wireless communication is to control the frequency of electromagnetic waves.
As long as the current fluctuates, a correspondingly changing magnetic field will be generated. In other words, what Xia Fan first needs to do is to make the electric energy of streamer technology change rapidly—or tremble.
And the detailed control of the opposite spell has already matured in more than a thousand repeated uses.
It only took him two days to use the new streamer technique to make a sharp scream. The frequency of this "sound" is extremely high and will not be caught by human ears, but under the electromagnetic background, it is like a turbulent ripple that instantly spreads around Qiguo with Fengyang Villa as the center.
Xia Fan witnessed all this through a swinging magnetic needle.
Like the tremor justice, this new technique based on the streamer technique should also have a distinctive name.
He named it "Xunyin", which was taken from the second half of a groundbreaking electronic music masterpiece.
The next step is to make magical artifacts.
This is also the inspiration from Mo Yun’s Tiandongyi—Xia Fan never hopes that only he can perform this technique, otherwise he will have to stay at the reporting office and become part of the communication device. . In that case, how can there be time to tease the fox demon?
And Mo Yun spared no effort in teaching how to make magical artifacts, and almost taught him hand-in-hand to carve the first Shake magical artifact for sound and sound.
The trick of is to condense the qi to the fingertips, carve the talisman, and focus on the effect that you want to express at the same time.
The key is the idea.
The clearer the idea, the higher the final yield.
This is also the key difference between the sculptures carved by the carpenter and the magical artifacts carved by the alchemists.
The Fuluo Xia Fan chose is naturally an oscillating circuit—it only consists of a power supply, an inductor, and a capacitor, which represents the most basic principle of resonance. After all, he can't draw it no matter how advanced it is. In addition, it was supposed to be the location of the power source, but he used the streamer talisman to replace it. In this artifact, the essence of the two eras can be said to have completed the first combination.
"Okay..." Ning Wanjun put down the magic weapon and circled the equipment he prepared, "How do you prove that it can...well, telecommute?"
"Just wait." Xia Fan said calmly, "I have sent Li to the Privy Council, and she will contact us there."
"Private House?" The princess looked towards Jinxia City, "I shouldn't hear the shouting from this distance. Then...what will I see, is it a note that appeared out of thin air, or--"
Just halfway through her speech, there was a sizzle from the receiver.
Then, Li's familiar voice rang in front of everyone, "Xia Fan...can you hear me? Hey...this thing should be used like this, right? What if...hey...you remember to reply to me as soon as possible ..."
's voice is intermittent and accompanied by obvious noise, but even so, it is indeed Li talking!
The scene of made everyone present in shock!
Xia Fan calmly drove the sound meter, turning his voice into high-frequency radio waves and sending it out, "I heard your voice."
After a short pause, a voice came from there again, "So...hey... it's fine."
When Li's voice fell to the ground, the scene suddenly fryed!
"Is this true? Miss Li is in Jinxia City now?"
"It's three or four miles from the villa to the Privy Council!"
"The thing making the sound seems to be this drape--"
"Master Xia, can only alchemists use it?"
Is there anyone who can't believe it? There are people looking for Li? There is also a question to Xia Fan...for a time, the lobby door became agitated.
"It's alright." Until Princess Quang Binh spoke, everyone stopped talking? "If I remember correctly? There are spells that can magnify the sound several times, but the distance is extremely limited? I can't go back and forth like you. Dialogue. Xia Fan, how did this thing do it?"
In fact, Ning Wanjun's heart is no less shocked than the others at this moment? If only she and Xia Fan were present? She probably had long been unable to hold back the request to experience it.
Now that there are so many people around, she can only continue to maintain the princess's respect, pretending to ask calmly.
"Vibration can turn sound into an invisible electromagnetic signal. As long as there is a suitable device? Can the signal be restored to sound? This is the basic principle of the audio instrument." Xia Fan explained concisely.
"Electricity...what signal?"
After listening, the people were dumbfounded. Obviously, this was beyond their understanding.
Xia Fan didn't plan to go further, because this is not something that can be said clearly in one or two sentences. The effect of the spell depends on the consciousness of the caster. This is also the key for him to make the current oscillate according to his own thoughts, thereby skipping the two thresholds of wired communication and wireless telegraphy? The key to get it right in one step.
Aside from the vibration technique, the receiver has nothing to do with alchemy. Is that a simplified version of mineral radio? Using pyrite as the detection core, can re-convert electromagnetic waves into oscillating currents? And through the interaction of the copper wire coil and the magnet, it is restored to the speaker's voice.
It can’t be tuned? Doesn’t have a filtering function? This makes the transmission of messages with continuous noise? The sound quality only stays at the level of being able to hear what the other party is saying. But it was such a thing that took much longer than researching new alchemy. Just a piece of suitable pyrite, Xia Fan searched for several days in the blacksmith's shop.
Ore radios were popular in the streets and alleys of the motherland in the 1960s. Parts can even be bought in the commissary. Although Xia Fan did not personally experience this era, he has also worked on several collections at home. Even so, putting together a simplified version of the receiver with the materials at hand really cost him a lot of brains.
Fortunately, after repeated attempts~IndoMTL.com~The first principle machine finally met his most basic requirements.
"Ah... I am not asking about the principle." Ning Wanjun immediately realized that her questioning method was wrong, and then changed the questioning method, "Does it have to be people who are emotional to communicate with each other?"
"It is needed for sending messages, but not for receiving. The sound from one audio device can be heard by multiple receivers." The biggest advantage of the mineral radio is that it is easy to use and does not even need a power source.
"How far can this sound be transmitted?"
"It’s only a few dozen miles at the moment." Xia Fan estimated it, after all, the audio equipment and receiver are quite simple, and there is still room for improvement in the future. "Wait until it is fully formed and spread throughout the entire Kai should be fine."
In fact, let alone Da Kai, even the Six Nations will be shrouded in invisible electromagnetic waves.
"Then...what are its limitations?" Ning Wanjun couldn't help but clenched her hands. A magic weapon that can transmit sound for thousands of miles and can be restored at any time is definitely something the army dreams of. The battlefield situation is changing rapidly, whoever can gain the advantage in intelligence can greatly seize the opportunity!
"There are no restrictions except those who are inspired."
"It has nothing to do with terrain, weather, day and night?"
"Yes." Xia Fan affirmed, as one of the epoch-making products, how could the radio be such an inconvenience?
"I understand." Ning Wanjun raised her head and patted him on the shoulder again. "The proposal you said at the meeting before, try to formulate a charter."