The group continued to move forward until they reached the end, and a large hall appeared in front of them. There was nothing in the hall except for a stone platform and a cyan mist suspended in the air on the stone platform.

The cyan mist fluttered in the wind on the stone platform, fluttering and curling, seemingly ordinary, but just by looking at it, you could feel the incomparable sword intent emanating from it.

This is the sword intent left behind after the destruction of the Sky Breaking Sword. At the same time, it was also the core of the entire Heaven Breaking Sword Array, that is, the Lingyun Peak Mountain Protection Array.

"Let's get started."

Jiang Zisheng said lightly and sat down by himself. Next to him, the six elders also sat down.

This sword intent also needs to be warmed from time to time, otherwise it will slowly dissipate. And those who have the ability to cultivate this sword intent are only the sect leader Jiang Zisheng and the six elders.

After it was over, Jiang Zisheng's expression was still faint, but the six elders all looked tired.

"I estimate that the demon's star power reserve can only resist about thirty more times at most, and then it won't be able to block the Sky Breaking Sword Sword Intent attack."

"By then, will the Adversary run away?"

The Great Elder of the Heavenly Punishment Hall, Yun Tianhe, said worriedly.

A smile appeared on Jiang Zisheng's face: "Run? Where to run? He...... Can't run away. ”

Several people were silent. Gu Yunzhu sighed secretly in his heart.

Although she was a great elder of the Pill Hall and held a high position, she still didn't have much say in the face of this kind of major event that involved the future fate of the entire sect.

……

Time is still slipping by. On the asteroid, Wei Qingyang's star power reserves were already less than half left.

The search for the Survey Telescope is still fruitless. His own divine search yielded no results. The thinking about how to crack those formations one by one is still like a mess, and there is no clue.

"We can't sit back any longer!"

After gritting his teeth, Wei Qingyang finally made up his mind in his heart.

"Just rely on my divine sense to search, and I'll go find them myself!"

If you don't crack the formation, relying solely on divine sense searching, whether you can see through and sense the camouflage of the Heaven Breaking Sword Sect's Mountain Protection Array is a big problem. Wei Qingyang was not at all sure about this. However, it is really not a way to sit back and wait for death, and there is no choice but to fight.

I can only hope for luck. Maybe after breaking through to the "unknowable" realm, the sensing accuracy has also been greatly improved, and if you don't crack the formation, as long as you get close to a certain distance, you can also sense the existence of Lingyun Peak?

If it really doesn't work, the sensing radius of the divine sense will be reduced to 1 million, or even 500,000 kilometers, and the sensing accuracy will be improved by narrowing the range. It's just that in this way, the time required for searching will be greatly increased, and I don't know if I will still have enough star power reserves for battle after finding their mountain gate headquarters.

After all, as soon as they leave this asteroid, all they have to do is destroy it in order to cut off their own path. There is no way back, if most of the star power is consumed, then there is really no way to return to the sky.

After thinking about it carefully, as soon as Wei Qingyang's body moved, he wanted to use the escape technique to fly into space. But at this time, Wei Qingyang's heart suddenly moved.

Suddenly, a possibility occurred to him.

Lingyun Peak, the headquarters of the Heaven Breaking Sword Sect's Mountain Gate, was not big, and it used an optical stealth formation, causing his telescope to not be able to find them at all.

However, their temperature should be very high. At the very least, they will be very hot compared to the temperature of the cosmic microwave background radiation.

This is one of their most striking signs.

So...... Is it possible to find out the difference in temperature?

Wei Qingyang patted his head suddenly, giving up the idea of leaving the asteroid and going to space to give it a go.

He thought of a way to find Ling Yunfeng, and that was ...... Infrared telescopes!

Any celestial object with a temperature above absolute zero emits infrared light. In the universe of Wei Qingyang's previous life, scientists even developed a special infrared astronomy.

Through infrared telescopes, astronomers can look through thick clouds of cosmic dust to observe stars and even planets, asteroids and other ladders that cannot be seen through visible light or whose luminosity is too dim, and analyze their spectrum to study their physical composition and physical properties.

Placed here, the Lingyun Peak Great Array may be unable to see themselves in the visible light band through formations such as the Taiji Refractive Light Array, which will also cause them to be unable to see them. At the same time, through the Mixed Yuan Hidden Qi Array, the Freedom Heavenly Demon Confusion Heart Array and other formations, his divine consciousness could not sense them.

But in the infrared band, they must have nothing to hide! Because this is based on the laws of physics, it is immutable.

Although this universe has all kinds of magical spells, the basic laws of physics seem to be connected to their own universe. Wei Qingyang has already verified this point. For example, the previous visible light telescope, hydrogen-oxygen engine, etc.

This means that there must be a great probability that you can find them through infrared telescopes!

Do what you want. Wei Qingyang immediately began to think about the basic composition and operating principle of the infrared telescope. After thinking about it for a moment, he probably had a plan in mind.

Infrared telescopes have many similarities with visible light telescopes, such as the lens, the most important component, which is completely universal. The only difference is that the infrared telescope needs to be equipped with several additional components, such as infrared camera, infrared spectrometer, infrared CCD, etc., for the study of infrared radiation sources.

But the problem is that these things are also too precise, and Wei Qingyang can't make them at all.

The advantage is that Wei Qingyang does not need to conduct spectral analysis, determine the composition of matter, or even image the infrared radiation source, etc., he only needs to know whether there is an infrared radiation source in a certain direction that conforms to his own speculation.

He decided to use a technology that would not otherwise be used in space infrared telescopes to achieve his goals.

This is the bolometer.

Based on the principle that infrared rays can heat objects, it is equipped with a medium with a very low temperature, and the change of temperature will change the resistance of the medium, and finally the observation target can be determined through the change of resistance.

Making this radiation calorimeter cost Wei Qingyang a lot of brain cells. The principle of this thing is not complicated, but the requirements for precision are too high. You must know that the surface temperature of an object more than ten kilometers long more than 10 million kilometers away may only be tens of degrees Celsius, and the infrared rays it radiates, even if it passes through the gathering of lenses, the temperature that it can increase for the medium is probably far less than one ten-thousandth of a degree Celsius.

The change in resistance is small, and the change in the intensity of the current is also small. If the accuracy is a little worse, its own error will cover up this small change, causing Wei Qingyang to find nothing, then it is useless.

Fortunately, with his painstaking research some time ago, Wei Qingyang's use of several commonly used formations, such as wind control techniques, freezing techniques, Zhenhai techniques, etc., has reached the point of being superb, and he has a fine control ability that others can't imagine. But even so, Wei Qingyang failed several times before finally building a suitable component.

The resulting infrared telescope looks like a long cylinder. It is surrounded by a layer of gray-white gas, inside it is a number of lenses made of ground high-purity water, and at the bottom is a generator powered by the power of the stars made by wind control techniques, which is responsible for supplying electricity to the thermal radiation meter placed next to it, cooled by cryologue, and bound by the heaven and earth net.

Looking at the strange-looking guy in front of him, Wei Qingyang sighed a little in his heart.

It's an amazing thing. Its existence is entirely based on the power of the stars and magic such as fantasy, but the principle of operation is based on those rigorous and self-consistent scientific theories of the previous life.

This kind of thing, I'm afraid that in the entire universe, only Wei Qingyang, a freak, can create it.

In order to test the performance of this infrared telescope, Wei Qingyang casually summoned a piece of water ice, and threw it over with a fire technique, and this water ice immediately exploded into a fiery steam. They want to spread out into the universe, but they are bound by the web of heaven and earth, and they can't break free.

Wei Qingyang summoned another piece of talisman paper made of various heavenly and earthly treasures, wrote on it a few times, and a talisman was already made.

The talisman and the formation are essentially the same, the only difference is that the talisman is easy to use, but it is disposable, and the formation is more troublesome, but it can continue to operate.

The runes and formations engraved on this talisman allow it to play part of the function of "Starlight Escape". Knock it out, and it immediately sped away into the dark depths of the universe with a blazing vapor mass that had now expanded to a radius of about five meters.

It lasted about two minutes, carrying the mass of steam for a distance of about 200,000 kilometers. The talisman dispersed, and it floated there, motionless.

Starlight Escape is different from ordinary inertial sailing, and when its effectiveness has dissipated, it stops, and there is no inertia to keep it going.

According to Wei Qingyang's speculation, if it is explained in the scientific system, it may involve some spatial applications, so there is no inertia, but it must be operated all the time in order to continue to move forward.

Under the cultivation system, Wei Qingyang is clear about the principle of Xingguang Escape, but under the scientific system, Wei Qingyang has no way to explain it.

With a distance of 200,000 kilometers, and knowing the orbit and direction in advance, Wei Qingyang's divine sense sensed the vapor mass clearly. But this is not his purpose, his purpose is to detect the existence of the vapor mass through the infrared telescope in his hand and accurately locate it. In this way, the performance of the infrared telescope can be truly tested.

Under Wei Qingyang's operation, the infrared telescope array group cautiously turned and aimed in the direction where the steam mass was located. The internal formation is set in motion, and the invisible infrared rays converge through the lens to the focal point, which begins to heat the medium inside the thermal radiation meter, and the resistance quietly changes......

"Found it!"

Wei Qingyang's spirits lifted.