Chapter 17: If you don't study hard, you can't play the game well
"What's going on? What are you playing for? Tell me and let everyone be 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 testing on the verge of committing suicide.
"Commonly known as Octokin."
Su Xingmou had never heard of it at all.
Gao Yiben had vaguely heard of it, but couldn't remember it.
Zhuang Wei had some idea: "I remember...it's something similar to **."
Su Xingmu poked at him: "What?"
"A kind of dynamite."
"Well, it is a companion substance for making explosives. Currently, it has the best explosive performance among simple explosives, second only to cl-20 in practical applications. Alas, it is a pity that it cannot be made for the time being..."
Friends understand that Ye Han was blown up by explosives, but they still don’t understand how he was blown up?
"The molecular formula of Octogen is c4h8n8o8 [it should be marked in the lower right corner, but it is not, so everyone understands the meaning]. Nitrogen and oxygen are the most abundant gases in the air, accounting for more than 99%..."
Ye Han thought it was a concise and concise explanation.
The minds of the friends were spinning wildly, and they could vaguely hear the sound of gears grinding together: "You mean, you mean... you can use air to directly synthesize explosives?"
Ye Han shook the slit ruler: "Isn't this all written down?"
Hydrogen, helium, lithium, beryllium and boron... The friends recalled the content of junior high school chemistry with tears in their eyes.
Is this what it says above?
These days... can't you play games well if you don't study hard?
"In fact, the theoretically strongest explosives are **hydrogen and total nitrogen*."
"**Hydrogen should be synthesized by upgrading it to one level. But I don't know why, it can't be combined..."
"I have read the paper on the synthesis of total nitrogen **** in the United States, but unfortunately it is not my major. I just read it briefly and I don't remember it very clearly..." Ye Han was very regretful and disappointed.
Synthesize explosives out of thin air! What else are you dissatisfied with... My friends, my eyes are a little wet.
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. It only takes a few minutes to make two or three grams..."
Su Xingmou wanted to ask, how does this compare to the familiar tnt, c4, etc. from movies and TV dramas? After hearing this sentence, she held back.
Two or three grams exploded like this? If there were more... wouldn't it be against the will of heaven?
"Or, do any of you know how to tailor and make clothes?"
"Tailor? Tailor?"
Where is this? Isn't this guy's thinking jumping too fast?
"Because I can also make graphene."
"Stone, stone, graphene? That graphene?" Gao Yiben's eyes widened, and Zhuang Wei also changed his expression.
"What is graphene?" Su Xingmou asked blankly.
Female stars don’t know about such internet celebrity material, so they really need to gain some common sense.
Graphene is the one used to tear off the tape to win the Nobel Prize. The one with a vertical pencil that cannot be broken by an elephant standing on it... My friends, this is a popular science.
"Well, that's it. An allotrope of carbon. You can do it with carbon dioxide."
A honeycomb lattice two-dimensional material composed of pure carbon atoms. It has super toughness, super high strength, super thermal conductivity and electrical conductivity. It can be bent and stretched. Its theoretical strength is two hundred times that of steel. A single layer can hold cats and plastics.
The bag is so thick that it can hold an elephant.
While talking, Ye Han made one, no, eight pieces.
With eight slits, graphene with a width of 32cm and any length can be woven in a blink of an eye, absolutely perfect and without any intrinsic or impure defects.
As thin as a cicada... No, that is simply an insult to graphene.
It's so thin that you can't even see it!
You must know that the light transmittance of float white glass is only about 82%, the light transmittance of ultra-white glass is 92%, and very few of the best can exceed 93%, while the light transmittance of graphene is as high as 97.7%!
It's so light that you can't even feel it!
Because one square meter of graphene weighs only 0.77 milligrams, it would take less than one gram to cover an entire football field, and its density is only slightly heavier than carbon dioxide gas.
"Is it there? Is it there? Where is it?" Ye Han even 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 hold a gun that his existence was proven.
"Go down! Go down! This thing is awesome! If you add a few more layers, cut it, make it into clothes and wear it, wouldn't it be invincible? What kind of third-level head and third-level armor, +1+2+3+10
I can't even compare to it!" Gao Yiben 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."
Su Xingmou didn't need to ask, Gao Yiben explained to her directly: "Kevlar fiber is used for bulletproof vests."
Although I say this, there is actually a lot more that I haven’t said...
The reason why a theory is just a theory is because it often cannot be realized.
According to theory, perfect two-dimensional materials cannot exist stably at non-absolute zero temperatures until graphene is made.
Graphene, how should I put it... A single layer does look invincible, but it is only a single layer.
Once multiple layers are stacked, the large π conjugated structure will be destroyed, and the magical properties of the two-dimensional structure will disappear. When stacked to more than ten layers, it basically turns back to graphite.
Therefore, only a single layer is called graphene.
Double-layer graphene, few-layer graphene, multi-layer graphene...most of them are pseudo-concepts.
The plastic bag station elephant, of course, does not exist, at least not yet.
That is a popular science algorithm, not a scientific algorithm.
However, it is also an international practice for scientists to talk about half of the money and keep the other half in order to attract funding, and only talk about the good things and not the bad things.
No way, even if I explain to the sponsors the s orbital, p orbital, sp2 orbital hybridization, σ bond, π bond, etc. of carbon atoms, they still can't understand...
Besides, who can guarantee that there will be no other two-dimensional material that can perfectly match single-layer graphene, retain its super mechanical properties, and be able to easily stack multiple layers?
"So, just give me two, no, three more upgrade packages! Four would be better!"
Seeing that the preparations were almost complete, Ye Han had no idea what to do.