"Xuannu, can you give me an accurate time?"

If you have a question, ask the Xuannu, this has become Chen Mulin's habit.

[Xuannu: "I can't calculate the exact time. ”】

After hearing this, Chen Mulin still did not give up: "Is there a way to shorten the incubation time?"

[Xuannu: "Calculating ......"]

"Okay, calculate it and implement it directly, and then tell me after hatching!" Chen Mulin didn't wait any longer, and swaggered out.

It was already late at night, and Chen Mulin went back to the room after taking a shower and lay down, but he couldn't sleep for a long time.

Tossing and turning, still thinking about the underworld.

Regarding the drones, except for two that have inexplicably lost contact, the remaining six have already flown a long distance, and the calculated map also has a large area.

According to statistics, there are thousands of small underground worlds discovered, and some are even bigger than cockroach nests.

To be sure, the discovered space is definitely not the world inhabited by Martians.

The technology of the Martians is undoubtedly more advanced than that of the Earth, and it is not known to what extent it is advanced, but it is still very simple to find and intercept drones, which is why there are no Martians in the proven space.

The most likely Martian is the location of the two drones that lost contact, which is likely to have been intercepted by the Martians.

Undoubtedly, those two places are the most promising for the discovery of Martians.

But it is very far from the entrance of the cockroach space, and the nearest passage has to pass through more than a dozen spaces, which is not only impossible to draw in time, but also very dangerous.

With the current level of equipment, it is impossible to deal with the giant beast, and there is no other way to get there.

Fortunately, there is more than one passage into the underground, and on the surface of this desolate Mars, there are countless hidden passages that lead to the underground.

Now it's all about discovering these hidden passages.

I really couldn't sleep, so Chen Mulin got up and pondered for a while.

"It seems that this is the only way to go!"

......

A few days later.

Chen Mulin got up early to wash up, and after breakfast, he came to the studio to start the live broadcast.

"Brothers, today is the time to reveal to you the true face of Mars!"

[Barrage: What's the drop, dig up the center of the earth for you?]

[Barrage: Did you pick up a Martian history book and plan to share it with us? Let me explain in advance, the last translation was pure speculation, don't really think that I can really translate Martian. 】

[Barrage: The true face of Mars is the Gobi Desert. 】

Chen Mulin glanced at the barrage and smiled without saying a word, buried his head and began to operate the computer.

Soon, a complete model of Mars was displayed on the screen, evenly covered with red dots, connected by threads, like a fishing net covering the entire planet.

Chen Mulin pointed to the red dots on the screen, and didn't explain, but asked first: "Do you know what this is for?"

[Barrage: Satellite Positioning System?]

[Barrage: Big cockroach?]

[Barrage: A bioradar that can cover the entire surface of Mars?]

[Barrage: Hen, hurry up, don't sell it, show your big baby!]

"I don't know!" Chen Mulin smiled, he pointed to those red dots and said proudly: "Those are drones, you know, find the artifact of the underground passage!"

[Barrage: Why do you think it's high-tech, it turns out to be the number of heaps!]

[Barrage: Are you going to enter the underworld so soon?]

[Barrage: Rich and rich, how many drones do you need!]

[Barrage: Sure enough, it is inhumane, so many drones, it is worth a lot of money to sell scrap iron. 】

Chen Mulin helplessly spread his hands: "This is also a matter of no choice, who let the base not have that technology for the time being, can only use the stupidest way." ”

"But there's no denying that it's the most practical way out there, isn't it?"

Looking at his masterpiece, Chen Mulin couldn't help but sigh: "I'm really a genius!"

That's right, this is what he has been working on in the past few days.

It is worth mentioning that these drones do not have superfluous functions, they are not even equipped with cameras, and are only responsible for signal communication.

As long as the signals of these drones are connected, the entire surface structure of Mars can be simulated in a carpet manner in the same way that the last map was made, and then all the hidden passages can be found.

This is why Chen Mulin said that today he wants to reveal the true face of Mars.

The structure of the entire surface of Mars has been simulated, and its face has been revealed, and as for the underground space, there will be more time later.

Now the main thing is to make it easier for you to enter the underground space, and you can't provoke those cockroaches every time, right?

[Barrage: It's shameless, why are you so narcissistic!]

[Barrage: Hurry up, see how genius you are!]

[Barrage: I haven't tested it yet, so I'll show it off, and I'll slap my face later.] 】

"Okay, let you see the power of science and technology!" Under the urging of the sailors, Chen Mulin pressed the enter key.

"Here we go, don't blink. ”

The signals between the drone and the drone began to connect, and a large net was really formed on the surface of Mars.

Immediately afterward, simulated terrain images began to appear around the base, expanding rapidly, and computers began to automatically search for hidden cave passages.

Soon, the first passage to the underground was discovered on a rocky hill a hundred miles from the base, followed by a second on the same mountain.

"Haha, see it, my method is still feasible!"

"It's not me who slaps you in the face, it's you!"

Chen Mulin began to snort, crossed Erlang's legs, and ate the cucumbers picked from the farm, all of which gave him the appearance of smoking cigars.

However, before he could scream, an accident appeared, and the red dots on the monitor began to disappear one by one, and the display signal was interrupted.

"What's going on?"

Chen Mulin tapped on the keyboard to find out the reason and tried to reconnect, but it didn't work.

The signals disappeared one after another, and soon he lost Yicheng drones, all of which were suddenly interrupted without any warning.

Completely out of control, unable to stop, just like that, after losing nearly half of the signal, it stopped.

[Barrage: Haha, what did I say, slap your face?]

[Barrage: People say that slow work makes meticulous work, and you have made such a large number of drones in the past three days, so it's no wonder that there is no problem. 】

[Barrage: I guess it's a strong electromagnetic interference!]

"That's not right!" Chen Mulin shook his head: "UAVs are all printed with printers, if there is really a problem, there should be problems with all of them, and electromagnetic interference is unlikely." ”

"Maybe it's not as simple as it seems!"