"What's going on? What to play with? Say it and make everyone happy. The friends asked.

Everyone is used to Ye Han's behavior of ignoring reality from time to time, immersing himself in his own world, and frantically tempting on the verge of death.

"Popularly known as Octokin."

Su Xingyan hadn't heard of it at all.

Gao Yi vaguely heard it, but he couldn't remember it.

Zhuang Wei had a little clue: "Remember...... It's a pretty much stuff. ”

Su Xingyan poked him: "What is it?" ”

"A dynamite."

"Well, it is the companion organism that manufactures the best, and it is currently the best explosive among the elemental explosives, second only to CL-20 in practical applications. Alas, it's a pity that I can't do it for the time being......"

The friends understand that Ye Han was blown up by explosives, but they don't understand yet, how was he blown up?

"Octokin molecular formula C4H8N8O8 [it should be marked in the lower right corner, but no, everyone understands the meaning], nitrogen and oxygen are the most abundant gases in the air, accounting for more than 99% ......"

Ye Han thought that his explanation was concise and to the point.

The brains of the friends were spinning wildly, and they could vaguely hear the sound of the gear running-in "click, click": "You mean, you mean...... Can you use air, directly to synthesize explosives? ”

Ye Han shook the slit ruler: "Isn't this all written?" ”

Hydrogen, helium, lithium, beryllium, boron...... The friends recalled the content of junior high school chemistry with tears in their eyes.

Is that what it says?

This year...... Can't you play the game if you don't study hard?

"In fact, the strongest explosives in theory are **hydrogen and total nitrogen*."

"Hydrogen should be synthesized by one level. But I don't know what's going on, I can't ...... it."

"I have read the paper on the synthesis of total nitrogen ***** in the United States, but unfortunately it is not my major, so I read it once, and I don't remember it very clearly...... Ye Han was very sorry and disappointed.

Synthesize explosives out of thin air! What else are you not satisfied with...... The eyes of the friends are a little moist.

Listen to what you mean, do you still want to, still ...... Do you still want to level the entire Jedi Island?

"It's a pity that the preparation speed is too slow, and it takes a few minutes to make two or three grams of ......"

Su Xingyan wanted to ask, how does this thing compare with the well-known TNT and C4 in film and television dramas, but when he heard this, he held back.

Two or three grams to fry like this? If it's more...... Isn't that going against the sky?

"Or, which of you will tailor and make clothes?"

"Tailor, tailor?"

Where is this? This guy's thinking is jumping too fast, right?

"Because I can also make graphene."

"Stone, stone, graphene? That graphene? Gao Yiyi's eyes widened, and Zhuang Wei also changed a little.

"What is graphene?" Su Xingyan asked blankly.

With such an Internet celebrity material, female celebrities don't know it, and it's really time to add common sense.

Graphene, the one who tore the tape to take the Nobel Prize, the pencil that can't be broken by the elephant standing on it...... Friends, a popular science.

"Well, that's it. An allotrope of carbon, which can be made with carbon dioxide. ”

The honeycomb lattice two-dimensional material composed of pure carbon atoms has super toughness, ultra-high strength, super thermal conductivity, can be bent and stretched, and the theoretical strength reaches 200 times that of steel.

As he spoke, Ye Han made one, no, eight pieces.

Eight slits, in the blink of an eye, a width of 32cm, the length is arbitrary, absolutely perfect, and there is no intrinsic or impure defect of graphene.

Thin as a cicada's wings...... No, that's simply an insult to graphene.

Thin at all invisible!

You must know that the light transmittance of float white glass is about 82%, the light transmittance of ultra-clear glass is 92%, and very few best products can exceed 93%, and the light transmittance of graphene is as high as 97.7%!

I can't feel it at all!

Because one square meter of graphene weighs only 0.77 milligrams, it takes less than one gram to cover the entire football field, and the density is a little heavier than carbon dioxide gas.

"Is there one? Have it? Where? So much so that Ye Han handed it to his hand, and several people were still touching it like blind people.

It wasn't until Zhuang Wei tried to use it to pocket a gun that it proved to exist.

"Lie down! Lie down! What a cow! If you make a few more layers, cut them, and make them into clothes to wear, wouldn't it be invincible, what three levels of first and third level armor, +1+2+3+10 can't compare! Gao Yiyi was excited.

Ye Han's face twitched slightly, and nodded: "That's definitely not comparable." The ultimate tensile strength of graphene is 350 times that of Kevlar fiber. ”

There was no need for Su Xingyan to ask, Gao Yi explained to her directly: "Kevlar fiber is made of body armor." ”

That is to say, but there is still a lot that has not been said......

The reason why theories are just theories is because they are often unrealizable.

According to the theory, perfect two-dimensional materials cannot exist stably at non-absolute zero until graphene is made.

What do you say about graphene...... A single layer looks really invincible, but it is also invincible in a single layer.

Once the multiple layers are stacked, the large π conjugate structure will be destroyed, and the magical properties of the two-dimensional structure will disappear, and when it is superimposed on more than ten layers, it will basically become graphite.

Therefore, only a single layer is called graphene.

What is bilayer graphene, few-layer graphene, multi-layer graphene...... Most of them are pseudo-concepts.

Plastic bag station elephants or something, of course, do not exist, at least not yet.

That's a popular science algorithm, not a scientific algorithm.

However, in order to attract sponsorship, it is also an international practice for scientists to say that half of them are left behind, and only the good ones are not bad.

No way, even if you explain to the sponsors the hybrid of the s orbital, p orbital, sp2 orbital hybridization and σ bond, π bond or something of the carbon atom, they can't understand it......

Besides, who can guarantee that there is no other two-dimensional material that can be perfectly matched with a single layer of graphene, which not only retains its super mechanical properties, but also can be easily superimposed in multiple layers?

"So, just give me two, no, three more upgrades! Four is even better! ”

Seeing that the foreshadowing is almost complete, Ye Hantu is poor.