"The delusion of the Nine Palaces Realm has broken the ban of the sound barrier on this day, it is simply a loach jumping over the dragon gate - wishful thinking!" Su Su sneered.

Mu Heng came to Su Su, and wanted to fight back, but when he thought that he didn't have the slightest clue about the cracking of the sound barrier on this day, he didn't say anything to praise Haikou.

Although Su Su's words were a bit harsh, they were also true. Thinking about it, the sound barrier stopped me from knowing how many seniors were powerful, and how could it be that I, a rookie in the Nine Palace Realm, could touch it.

But Mu Heng still wanted to give it a try. After all, the sound barrier is all sound in the end, and it is also a physical phenomenon, so there is no reason why there are no flaws.

"What? Do you really think you're doing it yourself?" Seeing that Mu Heng didn't speak, Su Su suddenly took advantage of the victory to pursue like a victorious general, and carried out the ridicule to the end.

"Nope. I just wanted to study it, and I didn't say I could break the ban." Mu Heng replied.

"Hmph, you're self-aware. But I'd like to remind you that the sound barrier isn't a joke this day, so don't!" Su Su had to say good things, and Mu Heng didn't know whether to be angry or moved.

"Panda, why don't you forget it!" He also felt that the idea that Mu Heng wanted to try was not advisable. She tried it herself a few times, but not only did she drain her spiritual power, but she also got a secret injury, not to mention Mu Heng of the Nine Palace Realm.

"It's okay, I know it in my heart, fairy, you quickly adjust your body, I'll figure it out myself!" Mu Heng replied. After speaking, he ignored the two of them and walked to the edge of the celestial sound barrier alone, trying to see through the essence of the sound barrier.

"If you don't enter the tiger's den, you will get the tiger! You have to experience it yourself, it's hard to find something new just by thinking about it!" Mu Heng muttered to himself, and then stretched his head into the range of the Heavenly Sound Barrier.

"Hum—" The familiar roar, like a drum and thunder, was as loud as a macro, hitting the back of Mu Heng's head, destroying his balance.

Feeling that he was about to faint, Mu Heng hurriedly retracted his head to avoid the continuous damage of the Tianyin barrier.

"Panda, are you alright?" He forgot to worry that Mu Heng entered the range of the Tianyin Barrier, and her heart was in her throat, and she had a deep understanding of the powerlessness of being unable to defend against the attack.

"It's okay, it's just a little dizzy, and I can bear it." Mu Heng rubbed his ears and patted his head, wanting to get this uncomfortable out of his head.

"Don't hold on, if you don't make it a fool, you won't be able to cry when you want to!" Su Su's beautiful fox face was full of mockery, but Mu Heng could still tell that she was worried.

After resting for a while, Mu Heng felt that his head had regained his clarity, and he once again put his head into the attack range of the Tianyin barrier, deeply understanding the essence of Tianyin.

However, the cultivation was still too low, and after a short pause, the fainting intention came up again, making Mu Heng have to withdraw immediately.

This time, Su Su and He Wuwu didn't say anything, they just looked at Mu Heng blankly, not knowing what he was talking about.

The first two experiments did not yield much results, but Mu Heng was not discouraged. If he can really find a way to solve this heavenly sound barrier, he will definitely not rely on cultivation, but on the various knowledge he has learned in his previous life.

Therefore, Mu Heng needs to study the principle of the Tiansheng barrier and find a way to break through. It is not necessary to completely destroy or break the Celestial Sound Barrier, but to be able to resist its attacks, at least to maintain the time it passes through the range of the Celestial Sound Barrier. Next, Mu Heng poked his head out again and again, and retracted it again and again to adjust and recover, and time passed slowly in the continuous attempts.

Su Su next to him had leaned over to He Wangwu at some point, and watched Mu Heng busy with her sitting on the ground.

"What the hell do you think this fat black and white man is doing?" Ren is the demon clan of Su Su, the three-talent mirror, is used to seeing all kinds of strange things, and he can't guess Mu Heng's intentions, so he only thinks that he is pretending.

"I don't know!" He Wuxian and Mu Heng have not known each other for a long time, but they give her the feeling that he is very mysterious.

Not to mention inventing the kind of tool that can help mortals ski, just helping her successfully break through the Four Elephants Realm is enough to make her feel that Mu Heng is not simple, but she can't say where the specific complexity is.

"Not really

I know the weird guy who came out of nowhere, and it's pretty cute to look at!" Su Su saw that He Wuwu didn't know, so he felt that Mu Heng was even more weird, and sighed inexplicably, and He Wangwu next to him was surprised.

"What?" Su Su saw He Wangwu staring at him in astonishment, and asked puzzledly.

"Don't you hate him very much? Still taking advantage of you?" He Wangwu thought that Su Su only had disgust and hatred for Mu Heng, but he didn't expect to say the word "cute".

However, He Wuxian can also understand that he had to appoint this guy as his guide in the first place, in addition to the fact that he did not hurt his compatriots, and more importantly, he felt that this guy was very special and cute.

"No contradiction, I do hate this guy's personality, not counting his appearance." There was a rare touch of tenderness on Su Su's face.

"Could it be that he is really the only one in these 100,000 mountains who is so special? There's no species like him?" He remembered Su Su's previous evaluation of Mu Heng, but he didn't take it seriously.

"Well, I know all the races in the 100,000 mountains, I've seen bears, and I'm not unfamiliar with cats, but it's the first time I've called a panda. Moreover, throughout the history of my demon clan, there has never been such a guy." Su Su replied with certainty.

"This is really unprecedented, and there is no one who will come after!" He Wuwu sighed expressionlessly, but he didn't know what she was thinking in her heart.

"Panda, how many times has this been?" Su Su also helped Mu Heng calculate the number of times at first, but after chatting with He Wangwei, he forgot about this stubble.

"I don't remember, but it's getting dark now, so I think it's been quite a few times." He Wangwu looked up at the sky, and a few stars had already faintly emerged.

"It's really perseverance." Su Su didn't know whether to praise or depreciate.

"Susu, do you think it's possible that Panda can really find a way?" He forgot to worry and asked for no reason, and Su Su, who looked expectantly in his eyes, couldn't bear to deny her.

But such an illusion will only be a bubble after all, and even if you don't poke it, it will burst on its own.

"Huh? How can it be? If he can really find a way and let us all go smoothly through the Heavenly Sound Barrier, what a great irony it is to the great power of the seniors who had been broken here before, you must know that he is still in the Nine Palace Realm!" Su Su did not answer directly, but made the simplest comparison.

"Yes, even if he is powerful, there is a limit!" He forgot to worry about hearing the words and said in despair.

On the other hand, Mu Heng couldn't remember how many times he tried, but the time he could stay within the range of the Tiansheng barrier did not increase at all, but because the burden on the cerebellum was too heavy, it kept shrinking.

"This day, the sound barrier is broken, which is sound waves, but its frequency is relatively high and the energy is relatively high. If you can block the propagation of this sound wave, will you be able to stop the attack?" Mu Heng's many attempts also generally understood the essence of the Tianyin barrier.

If you can create a vacuum, you can block the conduction of sound waves, so as to block the attack of the celestial sound barrier, is it considered to break the celestial sound barrier?

Mu Heng recalled the propagation characteristics of sound learned in physics and gave a preliminary plan.

However, in this day and age, it seems unrealistic to create a vacuum. The craftsmanship of this era did not achieve that kind of precision at all, and it was impossible to create a completely confined space.

And even if you have an airtight container, how to remove the air from it is a big problem.

Veto it out!

The proposed solution raises two larger problems that are not a realistic solution.

"Hey! It's nerve-wracking!" After vetoing the way that he had finally found, Mu Heng was still a little unwilling and disappointed.

If this sound wave can be captured by the human ear, it means that its frequency should not exceed 20,000 hertz, and if it can have such a great destructive power, it must be a large amplitude.

If you can create a sound wave of the same frequency as this sound wave, just so that the two medium waves are emitted in the opposite direction, and ensure that the initial phase is half a period apart, then you can weaken the attack power of the Sky Sound Barrier.

Moreover, as long as the amplitude of the sound wave is continuously increased, the attack strength of the Celestial Sound Barrier will not be high

Break and reduce until it reaches the range that can be tolerated.

Thinking of this, Mu Heng was overjoyed, and finally found a way, which still seemed to be operable.

"Shredded coconut!" Mu Heng, who thought of a feasible way, couldn't help but jump up and put on a very excited posture to ensure that Su Su and He Forget next to him were startled.

"Panda, you've got a solution?" Seeing Mu Heng so excited, he seemed to have thought of a way, and asked cautiously.

When Su Su saw Mu Heng's state, he couldn't tell whether he was really or pretending. But if this guy does work a miracle, then....

Su Su never thought about it, let alone dared to think about it!

"It's not a solution, it can only be said that it has some ideas, and it's hard to say whether it can be done." Mu Heng only has a direction, and as for whether he can solve the problem in the end, he has no bottom in his heart.

"I'll just say it!" When Su Su heard this, he knew that Mu Heng had just made a new attempt, and he was still 108,000 miles away from breaking the sound barrier of this day.

Although she was very happy to see Mu Heng deflated and couldn't break the sound barrier of the sky, she had a faint sense of expectation in her heart that a miracle would happen, and she hid it well.

"It doesn't matter if you succeed or not, as long as you work hard!" When he stared at Mu Heng's temptations again and again, he had already accepted the reality that the prohibition could not be broken, and now he didn't want Mu Heng to care too much about this matter.

"Hmm!" Mu Heng responded, this is also his plan, if this method doesn't work, then it really won't work. If you really want to get a superb fairy sword, you can only find another place, or when everyone reaches the peak of cultivation, they will be forced to crush this prohibition.

But when that happens, it seems that there is no need anymore!