The last bit of hard rock was broken down, and the base's Level 2 defenses were exposed to the air again after an unknown number of years of silence.

What was exposed was a layer of pure white light and a highly smooth protective wall, and Little Hela immediately commanded the robot to step forward for further detailed inspection.

"Young's modulus counts hardness of 125GPA, yield strength and tensile strength reach the highest detection value of the current equipment, and the melting point is ......"

SINCE THE TEST WAS CARRIED OUT WITH ONLY SOME PORTABLE EQUIPMENT THAT CAME WITH THE ROBOT, A TOP VALUE OF 500MPA WAS DETECTED, AND THE SPECIFIC MATERIAL ANALYSIS WAS DONE BY OBTAINING A SAMPLE BACK TO THE SIRIUS, WHERE THERE WAS A COMPLETE MATERIAL TESTING SYSTEM MANUFACTURED BY HELLA.

The melt-through machine is then transported to the vicinity of the protective layer to test the melting point of the material.

Thanks to the basic thermodynamics, as long as it is a macroscopic substance, it can be changed by the extreme high temperature, under the continuous irradiation of the laser pulse of the melt-through machine, the white protective wall heats up rapidly, and the thermometer of the surface distribution quickly calculates the steady-state thermal conductivity of the material.

"At present, the thermal conductivity of the material is 8016W/m·K and the conductivity is 984.1MS/s under the condition of 400k, which has an obvious crystal structure."

The test report shows that the material has super thermal conductivity, and it can be known that the energy irradiated by the low-power laser pulse of the melt-through machine is quickly transferred by the protective layer at this time, and the appearance has not changed.

"To increase the power of the melt-through machine, the energy storage pulse mode is adopted, and the minimum value of the condensation radius is adopted!!"

Roselle briefly read the material analysis report and was shocked by the thermal conductivity value of nearly 10,000.

This is obviously a crystalline room temperature material, which already has some of the characteristics of superfluid and room temperature superconductivity in the approximate range, and the melt-through machine in continuous pulse mode poses no threat to the protective layer at all.

Therefore, the working mode of the melt-through machine was quickly changed, and the pulse mode that was originally the pursuit of melting effect was transformed into a more high-energy energy storage pulse mode, and the condensation radius was also reduced from the original 1.5cm to 0.4mm, which was extremely refreshing for the laser melt-through effect.

Originally, in order to maximize energy efficiency, the temperature of the terminal point of the pulsed laser irradiation of the material was increased from the equivalent of 2000 K to a terrifying nearly 100 million K, which was used to ignite the fusion reactor.

The extreme high temperature brought obvious results, instantly vaporizing the irradiation point to form a small pit, causing the surrounding protective layer to appear red hot for a moment, but the heat was quickly conducted, and then disappeared.

Unfortunately, the pit is really small, with a diameter of 1.2mm, and the depth has increased by several orders of magnitude, 13cm.

"Sister Luoshen, this can't be done, this protective layer is still dozens of meters thick."

Little Hela carefully investigated the blow that could be called the extreme high temperature effect of the melt machine, and was a little frustrated.

No way, this is already the extreme high temperature produced by the melt-through machine, and at this moment, the power supply system of the melt-through machine is on the verge of overheating, and it will take a while to dissipate heat before it can be put back into use.

The megawatt power of the melt-through machine itself refers to the power of the continuous laser pulse output in the full power state under the hard energy conversion conditions.

In fact, the true irradiation time of each laser pulse is very short, and it needs to be converted to get the actual energy value of each pulse.

The essence is the change of power time unit, because the excitation time of a single laser is generally measured in microseconds, that is, the instantaneous power will theoretically drop by nearly 6 orders of magnitude.

Therefore, laser weapons should use continuous pulse and energy storage technology to increase the instantaneous power and increase the total energy carried by the laser pulse.

In the face of the metamorphosis physical properties used in the protective layer, the original continuous pulse mode of the melt-through machine is almost ineffective, and the thermal conductivity of nearly 10,000 will be increased in the same magnitude of a single pulse.

That is to say, in a subtle unit, the actual thermal conductivity of the white protective layer is increased by 6 orders of magnitude, and the thermal conductivity of this magnitude is the warm morning sunlight that illuminates the human body with a gentle laser pulse.

Therefore, Roselle turned the melt-through machine into damage mode, and the nanosecond point irradiation time of the energy storage laser pulse released the laser beam with only tens of watts of power and a single power in 15 nanoseconds, bringing the equivalent energy release of hundreds of millions of joules, destroying the melting point of the material with the ultimate instantaneous high temperature, and unreasonably bypassing the excellent energy conductivity properties of the protective layer material.

"Little Hela, what are the results of plasma spectroscopy data analysis at the moment of evaporation? What is the elemental composition of this layer of material? ”

Naturally, Luo Shen did not expect to use this unsustainable damage mode to break through the protective layer of tens of meters, she just used the instantaneous high temperature evaporation sample point to obtain spectral detection data.

"Sister Luoshen, you see, the main element of the material is obviously not a natural element, and the mathematical calculation of the atomic model is ......"

Based on the spectral data of the plasma state, HeLa Jr. quickly restored the original appearance of this unknown material using solid atomic theory.

"The material is a crystalline substance formed by synthetic isotopes of several elements, including silicon, rubidium, titanium, rhodium and so on, wow, how did these synthetic isotopes form such a stable crystal structure."

After a simple analysis, Hela's heart looked at the white protective layer and her eyes lit up, obviously excited, but the technology contained in this material did not know where to go.

"Little Hela, turn down the brightness of your electronic eye, I'm recording the image."

Luo Shen said Hela angrily, it was really the electronic eye LED light of Hella Star that was too bright, and she recorded the image on the spot.

"Oh, okay."

Hella Star, which has a pair of titanium alloy electronic eyes, quickly lowered the irradiation power, and quickly replaced the drill bit for the robot to take the next step in sample extraction in real time.

Fortunately, the hardness of this unknown material is not so unscientific, and the drill bit made of ADNR polymeric diamond nanomaterial can still be effectively drilled.

The robot collects the drilled powder and quickly transports it out of the underground world by drone and back to Sirius for deeper sample analysis.

ADNR drill bits are available with a Young's modulus hardness of up to 400 GPA and polycrystalline cubic boron nitride (PCBN) materials are representative of hardness, specializing in those materials with extremely high hardness.

The borehole was then cleaned and placed in various probe heads for more physical data collection.

The wave transport technique quickly calculates the modulus of rigidity of the material together and gives an incredible property.

"Sister Luoshen, this material is almost homogeneous, the crystal structure has a high degree of consistency, and no stress concentration points have been detected inside, the processing technology of this alien civilization is too powerful."

There is only one case where a material like this, which has extremely excellent physical properties in all aspects, can be processed so evenly.

"Little Hela, do you mean that this material is really homogeneously processed in a weak gravitational environment?"

"Well, it's impossible to process such a consistent internal crystal structure in a stellar environment, so ......"

Xiao Hella silently called up the structural simulation of the entire underground rock formation of Qingshan, as well as the simulation projection of the level 2 defense layer detected by the wave transfer technology.

The volume of the entire 2-layer defense layer, if it is assumed to be spherical, think of the terrifying range at the foot of the main peak of Aoyama.

"Is alien technology so fierce? Space processed such a large ~ outer layer of defense? With this amount of work, I think I can build several spacedocks. ”

Xiao Hela couldn't help but complain about the behavior of the local tyrants in this base, tens of thousands of square kilometers, and the level 2 defense layer with unknown depth, all of which were processed in space and then transported to the surface......

"Huh? Sister Roselle, do you think this is not a base, is it an alien super space dock landing on the surface? ”

"Why don't you go around where there is a way to process materials in space and build a surface base!"

Roselle looked at the little Hela who was thinking and was slightly surprised, he didn't think that Hela, who was heartless and heartless on weekdays, could make such a subtle and reasonable guess.

"Hela, what you said makes sense, the main element of this material is still an isotope of titanium, so let's name it titanium polymeric gold first. Judging from the scientific and technological performance of titanium polymerized gold, I have always thought that this is an underground base, and it is indeed likely to have gone into a misunderstanding.

Perhaps, as you said, this is a space unit of an advanced civilization. ”

Hearing that Sister Roselle agreed with her guess, Little Hela almost jumped down from the spider mecha driver's seat happily.

"And more! With such a large volume of space units, it can remain intact in the gravitational environment of the surface for hundreds of thousands of years. ”

"How high is their material structure technology, and can a space unit of this size still carry out landing operations? What level of power technology is this? ”

"I think I'm going to go in and have a look! It's even better to have access to the technology! ”

The brightness of Hela's titanium electronic eyes surged again, and she began to imagine the scene after obtaining advanced civilization technology.

No way, for Xiao Hela, who is proficient in federated materials science and technology, the speculation that the main peak of Aoyama is a space unit completely challenges the limits of various materials science that she knows, according to the simplest law of kinetic energy, if you want to make this main peak of Aoyama, which is close to the size of an asteroid, carry out surface landing operations, what kind of terrifying kinetic energy does its power system need to provide.

Moreover, the main peak of Qingshan obviously landed safely, and the surrounding and entire mountain terrain completely conformed to the natural simulation curve, and there were no traces of destruction and collision.

This is also evidenced by the intricate magma networks that still exist underground.

If it had not been a normal landing, the earthquake would have been no lower than 13, and this small half of the surface would have been completely destroyed, leaving behind an obvious annular impact crater.

"Okay, little Hela, hurry up and analyze the detailed mechanical data of titanium polymerization gold, and formulate the next operation plan."

"Let's get in quickly."

The unknown ruins are close at hand, and even if it is a calm Luoshen, he can't help but be a little excited.

It's just that the portrait projection they simulated on the bridge can't express these feelings, because it's a waste of host computing power.