Chapter 221: 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 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.mtlnovel.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."