Mecha Star Wars.

Lin Fan looked at the poor little boy who had softened the shell in his hand, and stuffed it back into its original position on the box.

"You still can't see it?" Xingchen's big head stretched out and turned towards the outside. He thought he was an artificial camera and scanned the place where he could take pictures. "If that's the case, I'll close the door."

Theoretically speaking, Xingchen could go down and take a lava bath without any problem.

But Lin Fanlao looked at the red magma below and felt a little scared.

The video footage has almost been collected, so there is no point in leaving the door open.

Xue Ping directly told Lin Fan to close the door and move forward.

Once the panoramic camera broke, only the camera on Lin Fan's hood was still in use.

Although the viewing angle and automation are not as good as drones, they are still better than nothing.

When the danger is eliminated, they can go in and record whatever they like. Under the current conditions, there is naturally nothing to choose from.

Lin Fan searched all the way and finally opened a door that was not meant for the outside.

She looked at the dim lights and countless pipes inside, and put the instrument in her hand to measure air quality and harmful substances first.

"Speaking of which, I feel a little strange." While waiting, she said to the person on the other side of the earphone.

"Say it." John Woo answered.

Xue Ping was staring at the values ​​on the instrument and had no time to talk.

"This place has been closed for a long time, right?" Lin Fan leaned against the door and placed the small box in his hand on the floor inside the door.

This thing was nothing to Xingchen, and it was still a bit heavy for her to carry.

"According to the geological survey results, the surrounding rocks were formed at least three thousand years ago." Xue Ping replied, "The environment inside is safe, you can go in."

Lin Fan glanced at the values ​​​​on it, picked up the small box, stepped into the inner room, and asked at the same time. "So where does the air inside come from? Normally, in a closed space that has been sealed in dust for so many years, would the air content be the same as the outside world?"

Don't say she is uneducated.

She has also watched a lot of tomb-robbing movies. There may not be air in many sealed tomb passages. Or just some stale poisonous gas.

Although this place is not a tomb passage, isn't the principle the same?

Even though the house in her hometown has been vacant for a long time, there was an indescribable smell when she went back to pick up clothes last time.

But here...

Lin Fan sniffed hard and said, "I don't know if it's my imagination, but the air inside feels a little fresher than outside."

"It's not an illusion." Xue Ping immediately added, "From a numerical point of view, the air quality inside is indeed much better."

Feelings are subjective, but values ​​are scientifically objective. Lin Fan's feeling was correct.

The space they are in is more than ten kilometers underground.

Not to mention the heat. Although there is a passage connecting the outside world, the distance is too long and the air quality is not that good.

Coupled with the heat and the crowds, it really smells a little bit of everything, and it’s really not comfortable.

"So, is this reasonable now?" Lin Fan's uncomprehending voice came through the instrument again. "Even if there is an air purification device here, it can't be turned on all the time... right?"

She suddenly stopped, "But then again, it responds as soon as I touch it... The equipment here seems to be always on, just like sleeping... That means..."

"This thing is always on standby." Xue Ping crossed his arms over his chest and leaned back, "otherwise it wouldn't be able to respond so quickly."

The more complex and sophisticated the instrument, the longer it will take to start up.

Because it involves many parts, system response, etc.

Anyway, they had discussed this possibility outside when Lin Fan stepped in and the lights immediately came on.

"Then, keeping it running for so many years must require a lot of energy, right?" Lin Fan continued walking along the pipeline, and suddenly his eyes lit up.

"Hey! There are stairs." She quickened her pace and trotted over, "It's the stairs going up!"

When touring the equipment room and exploring upwards, most people chose to go upwards.

Lin Fan held onto the escalator and walked up carefully. Xue Ping also took the opportunity to answer the questions that he had not had time to say just now.

"Normally, hibernation does not require a lot of energy. But it also depends on the specific situation. You have been walking for so long and you haven't even finished one level. Proportionally speaking, this is no small thing."

The more Lin Fan walks, the larger the 3D map becomes, and the smaller the new route her walking extends becomes.

This high-tech unknown space that they thought was the ruins of an ancient city-state is much larger than they imagined.

While excited, everyone was also filled with emotion.

In a place they didn't know, it turned out that such high technology had long been dormant underground.

Compared with the scene they saw now, the progress they had been so proud of before seemed not worth mentioning at all.

"So, is it possible that the magma is actually a kind of energy?" Lin Fan somehow came up with this idea when he was listening to their discussion through the headphones.

"You're saying that in order to maintain its energy needs, the builders here specifically placed magma underneath for heating..." John Woo glanced at Xue Ping and felt that this idea... didn't seem impossible.

"That's right. Isn't it said that energy conversion is conserved?" Lin Fan explained with his rudimentary knowledge, "The magma generates so much heat energy. Since it can be converted into other energies, why can't it be converted into other energies that maintain this big thing? ?”

Everyone outside looked at each other, and someone immediately ran to the side and began to calculate the possibilities.

Lin Fan was still talking.

"If the magma was moved here specially for use, then it would make sense why the magma exists in such a shallow location. It has been sealed here for so many years and the energy has not been cut off. Doesn't it also make sense?"

As for how to move the magma over...

Sorry, that was beyond the scope of her knowledge, so Lin Fan automatically skipped it.

"You are right, this is indeed a possibility." Xue Ping praised, "You are still smart and have provided us with a very good direction!"

Lin Fan's vanity was greatly satisfied, and he finally reached the upper floor with his head held high.

The same pipelines are everywhere, there are many but not cluttered, and even if you have obsessive-compulsive disorder, you will praise them.

Following the impression just now, I found the location of the door, opened it and went out.

"Look, the air is still qualified." Lin Fan stretched out the instrument again and looked at the values ​​​​on it and said.

After a few times, she had memorized the normal values.

It was still a deserted corridor, and it seemed no different from the lower floors.

But when moving forward through the conveyor belt, Lin Fan still felt the change in space. There are also more signs and doors on the walls.

Just now, down there, there were doors on only one side of the outer wall, and each door was far apart. But now, no matter left or right, there is a door not far away.

Lin Fan didn't understand architectural structures, so she just shook her head as much as possible while watching so that the camera could record it more comprehensively.

Because she had just stepped onto this floor, there was too much uncertainty, and she did not dare to open the door rashly like she had just done on the lower floor.

Finally, when the map running progress reached two-thirds of the lower level, Xue Ping issued a new order.

"Lin Fan, open a door and take a look."

The role of magma is here, wakaka, wakakaka