"Brother, you and my brother have a thorough understanding, what good things are there this time?"

Shi Zheng put his arms around Xu Fang's neck and asked in a low voice.

"I have an idea, but I don't know for sure." Xu put down and replied very frankly.

After all, he is not a scientist, and most of his knowledge of technology comes from physical chemistry in junior high school.

Bombs and drones are, after learning the principle, trying to use the materials of this world, the magic circle to reverse the projection.

It's like scratch lots, there is a certain probability of drawing, but a considerable probability of not winning.

"It doesn't matter if you're not sure, whoever is born with confidence!"

Shi Zheng was more afraid of him giving up than Xu Fang, and hurriedly complained:

"Brother, don't you know, since those undead collectively changed homes in Qinling, the ancient capital is safe, but there is no money!

No, those enterprises that originally relied on the undead to survive have moved in the direction of Qinling, and the salaries of teachers in small towns are almost gone!

Brother is not putting pressure on you, you have a good brain, show us the way———— right, you are still the vice president of our Bell Tower Magic Association!" ”

Xu Fang's brain was buzzing with noise.

What kind of vice president is the honorary title given to him by Han Lonely after the catastrophe in the ancient capital, and the military also gave him an honorary military title at that time.

"I'll try, arrange a lab for me." Xu Fang said.

"It's been arranged a long time ago!"

Shi Zheng couldn't wait, eager to stuff Xu Fang into the car and return all the way back to the Bell Tower Magic Association.

Research Division.

Laboratory.

The materials that can be seen on the market can basically be found here, and even a protective circle has been prepared intimately.

In case Xu Fang has to do some kind of explosion experiment, so as not to blow up the room like at the beginning.

"Whew..."

Xu Fang let out a long breath and first sorted out what he had analyzed from the Wright brothers.

The phonological parsing ability is really useful, especially when visiting the assembly line of the magic circle, and the seemingly hidden defense is like a fool's tutorial.

Soon, the content was sorted out.

Put these things away, and Xu Fang began to experiment with his new ideas.

"Submarines don't work."

The whole French world is different from the scientific plane, there are too many dangerous sea creatures, and all kinds of strange ocean currents and supernatural phenomena.

A diving facility is expensive and expensive, and if it is folded in it, it must not make people feel distressed to death?

"Radar or sonar would do, but this thing..."

Xu Fang really didn't sell Guan Zi with Shi Zheng, he was really not sure about this thing!

In his previous life, he followed the popular science blogger to make a self-made tricycle voice reversing radar, and also made an ultrasonic mosquito fighting artifact without success.

———— these things are based on existing equipment, which is different from the current pure hand rubbing.

Xu Fang stroked his hair.

Hair Jun, bear with it, and it will be fine soon.

······

This retreat is allowed for a week.

Bell Tower Magic Society, President's Office.

"Haven't you come out yet?" Han Xiao was a little worried: "Did you send someone in to see it, don't have any more problems." ”

"No, we eat the food we bring in every day." Shi Zheng said.

Han Lin nodded: "It doesn't matter if things are made or not, don't boil them out..."

Syllable!

The door was slammed open.

A figure broke in in a rage and walked straight to Han Lone's desk, who was it not Xu Fang?

Xu Fang hadn't had a haircut for a while, so he took off Jiang Shaoxu's head rope that was originally on his wrist and tied it in a casual short ponytail.

"You..."

"I'll start with that."

Xu Fang interrupted Han Lone's words, took out a strange-looking machine from the hidden star, and put it on the table with a snap.

"What is this?" Han Lin didn't dare to move, and looked at him with his eyes.

"Put in the magic stone, enter the magic energy and try it." Xu Fangdao.

"Oh." Only then did Han Lin realize that the machine was engraved with a magic circle, and he carefully entered the magic energy into it.

Drip!

The machine made a screeching sound, and then... Nope.

Han Lian: "??? ”

"How?" Xu Fang asked.

Han Xiao pondered the words for a moment and said uncertainly: "Not bad... I just didn't get it. ”

"Call Lao Yi." Shi Zheng next to him picked up the phone and said, and soon an old research officer came over.

"The function of this circle is to crush the extracted energy." Xu Fang pointed to one of the magic circles and said.

The researcher translated in a low voice: "It is a magic circle commonly used on the shield magic tool, which decomposes the energy of the magic stone and spreads it to the entire shield." ”

Han Lin and Shi Zheng nodded in unison.

"This array can use the energy generated by the previous circle to shake the air, thus generating 'invisible sound waves'." Xu Fang said again.

"This..."

The research staff was stunned and couldn't understand Smecta.

Xu Fang explained:

"I'm a phonological mage, and as far as I know, sound is produced through vibration, and the stronger the mental power, the more violently the air vibrates, and the stronger the magic.

Water vibrates stronger than air, and solids are stronger, so sound magic is more advantageous in water warfare, and ordinary protective magic equipment cannot resist sound magic.

And when fighting against a space mage, if the opponent draws air, the sound magic will be greatly reduced. ”

The research staff was still confused.

But a glimmer of realization flashed in Han Lin and Shi Zheng's eyes, they had cultivated demons for many years, and their knowledge and understanding of the elements far exceeded ordinary people.

"This hedrons,"

Xu Fang removed two spars from the machine:

"This spar is called 'Thundering Stone', which is often used in the production of thunder-based magic weapons, and the other is called 'Moon Stone', which has good conductivity and is often used in the energy transmission port of the magic slaying tool."

The purpose of the permit is to create ultrasound.

The principle of ultrasound is the piezoelectric effect, which requires both piezoelectric materials, vibration systems, and drive circuits.

In his previous life, he wouldn't be able to rub this kind of thing if he was killed.

————But it's still the same sentence, the wizarding world, don't talk about the science that doesn't magic!

No matter what characteristics you have, if you can't find the materials and replace them, I'll lose!

"Can this sound wave be used for attack?" Shi Zheng asked.

"It's hard." Xu Fang shook his head.

"That?"

"It can be used for localization, and the sound is reflected back when it touches an object." Xu Fang said with a smile: "The beginner magic of the sound system 'String Detective' is the principle that is applied. ”

Shi Zheng subconsciously looked at Han Lian.

Han Lin is the president in the end, and his brain is a little easier to use, and he concluded: "You mean to say that you used this device to simulate the beginner phonological magic?" ”

"That's right."

Xu Fang nodded in agreement: "No invention is groundless, the bomb comes from the fire and burst, the bee swarm comes from the wind magic, and this thing in front of you is the product of sound magic!" ”

"This..."

Han Lian, Shi Zheng, and the researcher changed their gaze when they looked at the machine.

Xu Fang: "Of course, there are still many deficiencies, such as whether there are better materials, whether the signal reception can be connected to the computer... I can't do anything about this, and I need more wisdom from the researchers. ”

"Enough!"

Han Xiao suppressed the excitement in his heart, patted Xu Fang's shoulder hard, and held back a sentence for a long time: "You have never let everyone down." ”

"By the way, this thing has to have a name, so you better do it."

Name?

Xu Fang smiled: "Let's call it a dolphin." ”

It is too bad to call bats, dolphins also emit ultrasound, and dolphin sound is the highest praise for human beings in the field of vocal music!

(End of chapter)