"Di-"

Luo Chuan stopped.

After walking in the dim trench for a long time, Luo Chuan realized a problem: there was really nothing on Eros.

First of all, after walking in the underground trench of Eros for half a day, I saw nothing special except for the various images on the trench wall.

For at least five minutes, nothing was heard and nothing was seen.

Luo Chuan tapped the flashlight lightly with his hand, and the light became brighter.

He checked the suit with his hands, and found no holes for the time being.

He slowly walked deeper into the trench, a long harness dragging behind him.

A seat belt is a safety device that comes with protective clothing.

In a few seconds, he was ready to go deeper.

Luo Chuan's front was pitch black.

The light of his flashlight was gone, and it was not reflected back at all.

Actually, this is what he expected.

All calculations in the brain indicate that the other end of the groove is far away.

How long do you have to walk to see the end of the ditch?

Now, as he floats like a zombie toward the pitch-black world under the tug of his seatbelt, he suddenly feels the need to double-check that his seatbelt is secure.

This demand was more intense than he had ever felt before, and he had once faced the space world measured in light years with composure, why did he feel so distraught now when he faced this small space that was empty and pitch black, just a few cubic kilometers?

Luo Chuan stomped on the ground under his feet with his foot.

He was pretty sure the ground was very hard under his feet.

He checked his seat belt again, and when he made sure there was nothing wrong with the seat belt, he made up his mind to go to the end of the ditch.

After another two seconds, the world of the black hole suddenly lit up brightly under the light of a flashlight.

In front of him was another world.

There was a light ahead of him.

The walls on either side of the trench are almost completely transparent in the light of the light.

The floor is also very transparent.

"What is this?" Luo Chuan subconsciously touched the wall with his hand, "It's very hard." ”

He pulled a blade from the left pocket of his suit and slashed it hard at the wall.

Soon, the surface of the wall did not move.

This blade is made of very hard diamonds, commonly known as "diamond blades" in the interstellar world. ”

This diamond is the hardest substance in nature on interstellar Earth.

Now, he didn't scratch the walls with this hard blade, which illustrates one thing, the material that makes up this transparent wall is harder than diamond.

What kind of substance is this, harder than a diamond?

However, for some reason, Luo Chuan has a strong curiosity about this wall.

He did his best to etch it deeply in his mind.

All around him, transparent walls led up to the thick walls above.

Sometimes, he even felt like he was hallucinating.

He always felt that the thick walls above seemed to be the edge of the sky.

No—he tried to tell himself that the impression was wrong, and that he had to abandon the spatial instincts he had built up on the core planet.

He now had to re-establish a frame of coordinates in his mind.

The transparent world around him was bright and dark, and he tried to see through the world beyond the walls, speckled with light and shadow, perhaps forests, fields, frozen lakes, or even castles of ice and snow.

Due to the distance, and the fading light, it was impossible for Luo Chuan to identify them.

Those narrow lines could be roads, canals, or well-planned rivers.

They form a vague geometric network.

Luo Chuan walked along the transparent wall.

He pressed the flashlight's "magnifying glass" button and shone the flashlight at the transparent wall in front of him.

The flashlight in his hand has its own magnifying glass function.

By pressing the "magnifying glass" function on the lower end of the flashlight, the irradiated image can be magnified three million times.

Looking out along the side of the transparent wall, the farthest distance that can be seen is a two-dimensional periodic honeycomb lattice structure composed of a carbon hexetary ring.

"Graphene." Luo Chuan shouted, "This wall is made of graphene. ”

A smile tugged at Luo Chuan's face.

He suddenly remembered what Professor Shangguan had mentioned.

Many years ago, scientists discovered graphene.

Graphene is a two-dimensional crystal that is stripped from graphite material and composed of carbon atoms with a thickness of only one atom. Twenty years ago, Interstellar Earth British physicists Andrei Geim and Konstantin Novoselov successfully isolated graphene from graphite, proving that it can exist alone, and the two were jointly awarded the 2010 Nobel Prize in Physics on Earth.

Graphene is both the thinnest and strongest material, with a breaking strength 200 times higher than that of the best steel. At the same time, it has good elasticity, and the stretch range can reach 20% of its own size. It is currently the thinnest and strongest material in nature, and if a hammock is made of graphene with an area of 1 square meter, it can withstand a one-kilogram cat with a weight of less than 1 milligram.

The most promising application of graphene is to become a substitute for silicon to make ultra-miniature transistors that will be used to produce the supercomputers of the future. By replacing silicon with graphene, computer processors will run hundreds of times faster.

In addition, graphene is almost completely transparent, absorbing only 2.3% of light. On the other hand, it is so dense that even the smallest gas atom (helium atom) cannot penetrate it. These features make it ideal as a raw material for transparent electronic products such as transparent touch displays, light-emitting panels, and solar panels.

As the thinnest, strongest, and most electrically and thermally conductive new nanomaterial discovered so far, graphene is known as "black gold" and is the "king of new materials", and scientists even predict that graphene will "completely change the 21st century". It is very likely to set off a disruptive new technology and new industrial revolution that will sweep the world.

Thinking of this, Luo Chuan was surprisingly excited.

What he sees now is not ordinary graphite, but real graphene.

Graphene can be made into perfect solar panels.

The stable lattice structure of graphene gives the carbon atom excellent electrical conductivity.

When the electrons in graphene move through the orbit, they are not scattered due to lattice defects or the introduction of foreign atoms.

Due to the very strong interatomic forces, the electrons in graphene are disturbed very little at room temperature, even if the surrounding carbon atoms collide.

Graphene is the strongest substance known to man, harder than diamond and a hundred times stronger than the world's finest steel.

Thinking of this, a light appeared in front of Luo Chuan's eyes.

~~~~##作者的话, dear readers, first of all, I apologize to everyone for not having a stable update in the past two days because there are some things to be busy. Then, thank you very much for your support of Panda. Your support is my biggest motivation.