Lin Yan's research seems to have made progress because when I woke up in the morning, I saw him and Jia Yang sitting on the sofa discussing something with joyful faces, without even noticing me coming out.

"Do you have something worth celebrating?" It's been a long time since I've seen Lin Yan smile. I leaned over to him and asked, holding his arm.

"We found that the virus particles became smaller last night!" Lin Yan's voice was somewhat excited, and his tone unconsciously rose.

This is undoubtedly a significant new finding.

"How did you do it? Does it happen over time?"

"Last night, I just wanted to clean the test tube, so I used an ultrasonic cleaner. After cleaning the test tube, when I looked at it again, it had become much smaller than before."

"Is it because they are sensitive to sound waves?"

"Yes. But usually, the sound wave frequencies that our bodies can tolerate are only slightly more sensitive to them, and they don't cause much harm. It can even make them excited. However, if it's ultrasonic waves, it will have a certain impact on them, and it may even weaken their transmission ability."

"Just weaken it?"

Lin Yan pondered for a while. "Ultrasonic waves can only have a certain impact on them, but I think using infrasound waves to deal with them would be more effective. Or rather, it can directly eliminate them."

"What's the difference between ultrasonic waves and infrasound waves?"

Lin Yan glanced at Jia Yang, indicating for him to answer me.

Jia Yang nodded knowingly. "Their vibration frequencies are different. Ultrasonic waves have frequencies higher than 2 watts, while infrasound waves have frequencies lower than 20 hertz. Simply put, infrasound waves can cause harm to the human body. They are even used in military weapons because the vibration frequencies of infrasound waves and human organ vibrations are extremely similar. It can affect organ displacement and even have an impact on the human nervous system. In severe cases, it can cause mental disorders and death. But ultrasonic waves are beneficial to the human body."

I nodded, somewhat understanding, and asked again, "So, can infrasound waves affect the viruses parasitic in the human nervous system, thus destroying them?"

"That's just my speculation, but I think the feasibility is very high. However, we're still lacking a certain device, and that device is in the research institute." Lin Yan looked somewhat frustrated. "I originally planned to report it to them and let them handle it, but just now we found that there's no service for making outside calls, so we can't contact them."

I pondered for a moment. If this method is feasible, it could indeed be a way to save the world. Since we can't contact the outside, how should we solve the device issue?

"We can wait for the military to come and report it to them." I suggested.

They exchanged glances, and Jia Yang spoke up, "Actually, the device Lin Yan mentioned isn't that big. We can bring it back home."

"Are you crazy?" I jumped up from the sofa, looking at them in shock.

Jia Yang saw that I was getting emotional and hurriedly stood up, waving his hand. Lin Yan reached out and pulled me back onto the sofa.

"No, no... We're not going out ourselves. Xu Zijie, did you forget that we have a robot?" He pointed to Xiaogu standing beside the TV.

Xiaogu seemed to know we were talking about him. Its mechanical head tilted strangely and said, "Master, do you need something?"