Heavenly Dao Formula

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 produced. 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, spreading out around Qiguo with Fengyang Villa as the center in an instant.

　　 Xia Fan witnessed all this through the swinging magnetic needle.

　　 Like shaking justice, this new technique based on streamer should also have a distinctive name.

　　 He named it "Xun Yin", which was taken from the second half of a seminal 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 he can perform this technique only by himself, 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 has spared no effort in teaching the making of magical artifacts, almost teaching him hand-in-hand to carve the first Shaking magical artifact of phonics.

The trick of 　　 is to condense qi at the fingertips, and while carving the talisman, focus on the effect you want to express.

　　The key is the idea.

　　The clearer the idea, the higher the final yield.

　　 This is also the key difference between the sculpture carved by the carpenter and the magical artifact carved by the alchemist.

　　 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. On this artifact, the essence of the two eras can be said to have completed the first combination.

　　 "Well..." Ning Wanjun put down the magic weapon and circled around 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, where she will contact us."

　　 "Private House?" The princess glanced 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 words, there was a sizzle from the receiver.

　　 Then, Li's familiar voice sounded in front of everyone, "Xia Fan...can you hear me? Hey...this thing should be used like this? 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!

　　 This scene made everyone present in shock!

　　 Xia Fan calmly drove the Xun Yin instrument, turning his own voice into high-frequency radio waves and sending it out, "I hear 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 fry!

　　 "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 that makes the sound seems to be this cover-"

　　 "Master Xia, can only alchemists use it?"

　　Is there anyone who can't believe it? 　There are people looking for Li? 　There are also questions to Xia Fan...for a time, the front of the lobby became agitated.

"Okay." Until Princess Guangping spoke, everyone stopped talking? 　 "If I remember correctly? 　 There are spells that can amplify the sound several times, but the distance is extremely limited? 　 I can't talk back and forth like you. Xia. Fan, how did this thing happen?"

　　 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 could not hold back her request to experience it.

　　 Now that there are so many people around, she has to 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.

　　 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 copper wire coils and magnets, it is restored to the speaker's voice.

　　It cannot be tuned? 　It does not 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 forge.

　　 Mineral radios were popular in the streets and alleys of the motherland in the 1960s. Parts can even be bought at 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 ~www.ltnovel.com~, the first principle machine finally met his most basic requirements.

　　 "Ah...I'm not asking 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. It doesn't even need a power source.

　　 "How far can this sound be transmitted?"

"It's only tens of miles now." Xia Fan estimated, after all, the audio instrument and receiver are quite rudimentary, and there is a lot of room for improvement in the future. "When it is fully formed, it should not be spread throughout the whole Daqi. problem."

　　 In fact, let alone Da Kai, even the Six Nations will be shrouded in invisible electromagnetic waves.

　　 "Then...what's the limitation of it?" Ning Wanjun couldn't help holding her hands tightly. 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 of 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 that, as one of the epoch-making products, how could radio be such an inconvenience?

　　 "I see." Ning Wanjun raised her head and patted him on the shoulder again. "The proposal you mentioned at the meeting before, try to formulate a charter."