Hearing that Zheng Shusen was slaughtered another 58,000, Li Yihao didn't have a mouthful of old blood spurting out.

"Nima, you are stupid, you still have to pay so much money, won't you say that you didn't bring enough money?"

"No, because I use a credit card......"

"Then you won't say that the quota is not enough......"

"It's late, I swiped the card directly and saw the bill to know ......"

Well, the world of sluts is really not something that ordinary people can understand......

"But I don't think it's too expensive, right? Because I remember you said that now the general premium agarwood is sold for 8,000 yuan a gram, and those agarwood powders just now, why should there be five or six grams, right? ”

Li Yi patted his head speechlessly, he couldn't communicate, he really couldn't communicate, can agarwood and agarwood powder be mixed up? Is the grade of agarwood just an ornament?

Even if there is no powder doped with agarwood in his agarwood powder, the price of that grade of agarwood powder does not exceed 100 yuan a gram!

"Are you sure, no more than 100?"

"Sure!"

"Poof! Farewell brother, don't look for me, let me find a quiet corner and disappear silently from this world. ”

"Well, you go to death, so you don't have to pay off your credit card account......"

It didn't take long for Gu Feng to send the painting to Zhong Haoqing's office.

"Autumn and Winter Landscapes. Winter Scene? This painting can be imitated to such an extent that if you don't get a warning in advance, even if there is a problem with the paper, most people will believe it! ”

Hu Jinquan is a master of ink and wash landscapes, so he can see the extraordinaryness of this painting at a glance. This painting is different from the painting of the same name in the collection of the Tokyo National Museum, but it is a good look. It's the feeling that Yang works such as Xue Zhou give people.

Zhong Haoqing also leaned over to take a look,

"The style of painting is indeed very similar, but the paper is indeed a big flaw, and it can't escape the eyes of the appraisal master, and the ink precipitation is also a big problem......

Hu Jinquan nodded and thought about it. Said:

"You put it here, I estimate it will be about a year at the earliest."

"Huh?"

"What are you, a year is too short. Do you think it's that easy to get old? ”

Li Yi scratched his scalp, but he was still thinking that half a month was almost enough, and he was still thinking about trading with Hengshan father and son! But now the father and son don't know what happened, if the two Chinese surrendered. The two of them probably didn't run away either, did they?

On the way back. Gu Feng handed Li Yi a report,

"Brother Yi, the test report is out, none of those little bugs were poisoned, only the cause of their death...... It's amazing, you better see it for yourself. ”

Magical? Li Yi blinked, what was the cause of death, and he could actually make Gu Feng use the word magic?

Flip through the thick report bound in copy paper. He first looked at the sample, flying ants, mosquitoes, flies, moths, ants, crickets, golden beetles and other insects. Two of each were chosen, and there were nearly a hundred.

The report began with a brief description of each insect, and then followed by some more professional things, Li Yi flipped through it casually, and skipped directly to see the conclusion.

The conclusion is very simple and clear, and it is also very unexpected by Li Yi, because the cause of death of these insects is actually all due to an ultra-low-frequency sonic injury, that is, death from infrasound!

Indeed...... It's amazing!

Closing the report, Li Yi took out his mobile phone, and soon, he found an introduction to infrasound.

The propagation of the vibration of the emitter in the air or other substances is called sound waves, while the sound waves with a vibration frequency of less than 20 Hz are called infrasound waves.

According to research, there is a fixed frequency range for people's perception of sound, which should be between 20Hz and 20,000Hz, that is, within the range of 20 to 20,000 vibrations per second.

If the object vibrates at a frequency lower than 20Hz or higher than 20,000Hz, it cannot be heard by the human ear. Frequencies above 20,000 Hz are what we often call ultrasound, and frequencies below 20 Hz are called infrasound.

The report pointed out that these insects died from infrasound waves with a frequency of 12 Hz to 18 Hz!

There are a lot of studies on infrasound, one of which is the study of the harm of infrasound to animals and humans.

Studies have shown that infrasound waves can resonate with the human body, causing damage to resonating organs or parts due to displacement and deformation.

This kind of injury can be divided into two categories: mental injury and mechanical injury. The main symptoms include general malaise, dizziness, nausea and vomiting, nystagmus, etc., and even delirium, madness, and internal organ rupture in severe cases!

Infrasound waves of the same intensity and different frequencies can cause damage to different organs and parts; The degree of infrasound of the same frequency depends on the intensity of the wave.

The so-called infrasonic weapons use this principle.

Infrasound is invisible and inaudible, but it is everywhere. Earthquakes, volcanic eruptions, storms, wave impacts, gun launches, thermonuclear explosions, etc., all produce infrasound.

The most important thing is that infrasound waves are not easily attenuated because of their low frequency and very little absorption by the atmosphere. Moreover, the wavelength of infrasound waves is very long, which can bypass some large obstacles for diffraction, and it is not easy to focus into a beam, so it is quite difficult to achieve directional focused transmission, so the direct result is that there is no distinction between friend and foe, and it is easy to be injured by mistake.

The more Li Yi looked at it, the more frightened he became, this Nima simply invited a super killer back, and it was also "those who offend me will be punished even if they are far away", terrible!

But then he found out what the problem was, because he remembered the scene of that night, at first, the insects were close together, but when the large number of insects were killed, they almost all died at a distance of about two meters from the heart buds.

According to the above introduction, the attenuation of infrasonic waves in a short distance is almost negligible, so if the heart bud is indeed an infrasound wave, how can it be attenuated in only two meters?

This report is fooling, isn't it?

Gu Feng scratched his scalp,

"I also asked this question at the time, but the expert was very sure that these insects were definitely dying from low-frequency sound waves. As for why it was within two meters, he didn't bother to answer the question at all, because he didn't think it was possible at all! ”

Well, it's simply impossible......

"That'...... Can we change the research institute? ”

Gu Feng smiled bitterly,

"Brother Yi, I first found a research institute that studies chemistry and neurotoxins, and after the experts there confirmed that these bugs did not die of severe poison, they suggested that I find an acoustic research institute to try, so later I asked someone to find an expert who studies infrasonic weapons, and this report was issued by that expert."

Specialists in the study of infrasonic weapons? Such an expert should be more rigorous, right? However, low-frequency sound waves, but the attenuation is obviously not consistent with infrasound, what is that?

"Brother Yi, do you remember when I felt a little dizzy and nauseous after cleaning the insect corpses with the fat elephant?"

Li Yi nodded.

"That's what I deduced, at first we were all standing far away, so we were fine, and when I was cleaning the insect corpse with the fat elephant, we entered its two-meter defense circle, because we were relatively large, so we ......"

Li Yi nodded again and said:

"In other words, it is possible that the heart bud will be able to control the distance of the sound waves, because I remember a moment in the middle, its killing range was only one meter, and after I poured some water, it recovered to two meters......"

Li Yi remembered that when he first discovered that the heart bud could kill insects, those mosquitoes almost flew to its branches and leaves before they were killed, coupled with its performance when it later killed that large wave of insects, then, at least two things should be certain by now.

One is that the Heart Bud can turn on the sonic weapon at will according to the level of threat it is subjected to, and the other is that it may be able to control the distance of the sound wave!

"Well, in addition to these two, there is another point, that is, this guy is very tricky!"

Recruiting insects? Li Yi suddenly remembered the scene where thousands of insects swarmed and surrounded his heart buds that night, and he couldn't help but shudder, that is, it had a killer feature, otherwise he didn't know how miserable it would be!

"We tested it in the past two days, caught some small insects, and found that as long as they entered the range of about 100 meters away from the heart bud, these insects would be like crazy, and they would rush towards the heart bud without caring about anything......

"Is that what it means to be a strong insect attractant and a strong insect killer?"

"Well, we've tried smaller animals like birds and mice, but the heart bud doesn't seem to be attractive to them, and no matter how close you are, even touching its branches and leaves, nothing happens."

Li Yi rubbed his chin vigorously, it is only effective for small-sized insects, and it can not only attract insects, but also kill insects...... In this way, it seems that it is still somewhat useful for the vineyard, and in case the vine grows bugs or something in the future, it should be able to be done without insecticides.

It's just that in this way, no matter whether the beneficial insects and pests are all killed, I really don't know if it's a good thing or a bad thing.

"Brother Yi, in fact, the most suitable heart bud is camping, with it, even if there are more insects, ants and ants, they are not afraid ......"

Li Yi sighed, it seems that this function is useless, go out camping and take it, they don't say it's troublesome, the heart bud is still so tender, it is estimated that it will be shaken to death just by shaking.

Back in Yanyuan, Li Yi first glanced at the heart bud that had been moved back to the balcony, and found that it didn't seem to be growing as well as before, and then thinking about the performance of the little guy before and after he poured He Shou Wu water that night, he understood that even if this guy could send out an attack similar to infrasound, it was estimated that it would not be too easy.

After studying for a while and finding nothing else, he took out He Shou Wu water to replenish some energy to Xinya, and suddenly his heart moved, and he got up and walked towards the garden outside the door. (To be continued.) )