/sci/ - Science & Math

Neutronium

Diamonds can resist the most shear stress of any material known to man. Thus, they are the hardest.
Many materials can resist extremely high pressures, such as metals. But that's assuming you're talking about uniform pressure.

The transparency of diamond derives from its electrical properties (which determines optical properties), not its mechanical properties.

Diamond is the hardest material known. Silicon carbide is the second hardest, as far as i know.

inb4 carbon is a metal

>>3429298
But aren't its mechanical properties emergent from its electronic properties?

My bitch of an ex-wife.

>>3429302
Only in the loosest possible sense.

>>3429304

Just like my bitch of an ex-wife.

Im pretty sure it's diamonds, although how tough is graphene?

>>3429302
Yes. I think the "clear and pure"-question got mixed up with the mechanical one.
Both optical and mechanical properties come from electronic properties but there is no correlation between mechanical strength and optical clearness.

>>3429292
But none can resist pressure like diamonds?

I'm just thinking "extreme high pressures causes higher transparancies in matter and extreme low pressure causes higher transparancy in matter?

>>3429327
Why would this be the case?

>>3429327

Aka : We can only detect/see life/matter in a certain scale of pressure. We can't see extreme low pressures, and we can't see extreme high pressures. So we see/detect a certain spectrum between.

>>3429349
nope that done be retarded.

>>3429344
>>3429344

How can you ask a "why" question on a hypothesis :p

>>3429349
>We can only detect/see life/matter in a certain scale of pressure
So if I compress gold enough it will become transparent? I don't think so.
And why are you getting on about life? What have you been smoking?

Also, light is not pressure, if that's where you were headed with your image...

>>3429364
Hypotheses are usually not random.

>>3429364
Because the answer to that why makes a difference between a theorem or a piece of shit.

>>3429362
Lol no. I just remember black holes have Huge Amounts of pressure. They aren't visible.
And the nebulas "so big we can't draw a circle around them" can't be seen by us either, we need to detect them through mathematics and even if so we cant keep drawing circles forever/infinite.

>>3429364
I can't ask what the motivation for his hypothesis is? That's just silly.

>>3429349
I'm pretty sure the core of the earth isn't clear.

>>3429387
>nebulas
>not visible

Diamonds are the hardest metal known the man, so no.

What would happen in this scenario?

>>3429387
Are you high or trolling?
If high, try going and staring at a wall or something.

Borosilicate glass.

Neutron Matter.

If you compress any matter enough all the electrons will be pushed into the protons in the nucleus resulting in nothing but neutrons. Push further and you have a black hole.

>>3429387
>I just remember black holes have Huge Amounts of pressure. They aren't visible.
Correlation does not imply causation. Just because it happens to have high pressure and absorbs light, there's not necessarily a link between those two.

>And the nebulas "so big we can't draw a circle around them" can't be seen by us either, we need to detect them through mathematics and even if so we cant keep drawing circles forever/infinite.
Some nebulas are glowing because they're hit by intense beams of radiation. They have very low pressure but are still visible. Most gasses are transparent, no matter their pressure.

And what about the rock the diamond is embedded into? That rock has been under the same pressures and temperatures as the diamond, yet is not transparent.

Carbon nanotubes. How did /sci/ think it was diamonds, fucking summer.
"The bulk modulus of superhard phase nanotubes is 462 to 546 GPa, even higher than that of diamond(420 GPa for single diamond crystal). "

>>3429386
>>3429391

I tumbled in to this "thinking-mode" after seeing a perfect nice glass shard. It is very sharp and clear. It made me wonder if diamonds would be the extremis of high-pressured matter.And if plain air or an even more less dence gas would be the extremis of low-pressured matter. Making both less visible to human eye, as in a common qualification. Like you get burned from extreme cold & extreme hot temps.

>>3429431
>op asks what can withstand the most pressure
>gives bulk modulus
Fuck you.

visibility and coloration are a function of the atomic properties of the matter in question. in the case of crystalline materials, coloration and optical properties will also vary based on the densities of materials and electrons along crystallographic axes, which is again ultimately determined by chemistry.

>>3429435
Density isn't what makes something transparent.

And diamond just sitting on the table isn't "high-pressured", what does that even mean?

this thread...

>>3429443
>The bulk modulus (K) of a substance measures the substance's resistance to uniform compression.
2/10

>>3429452

>>3429435
>And if plain air or an even more less dence gas would be the extremis of low-pressured matter.
Thin air is not much different from atmospheric pressure. The average distance between molecules decrease but the properties remain the same.

If you could see into the UV spectrum you would still see the glass. Many materials let some part of the light spectrum through while reflecting/absorbing others. Silicon is not transparent for humans but if you could see into the far infrared spectrum if would be.

a nuetron star consists of neutronium the densest material INTHEUNIVERSE,
1NB4 EVERYONE IS DONE WITH THE THREAD

>>3429501
>implying quark matter isn't denser

>>3429501

You see? :m

>>3429587
Note: You zoom in from left to right.
And you zoom out from right to left.

Continuing

I WONT LET SUCH GREAT INTELLIGENCE DIE

always bet on buckypaper

Carbonados. "diamonds" formed in a vacuum, made of several crystals, not only one, harder than anything on earth.

>>3429283
Diamond is high on the Moh's scale of hardness. This has to do with scratching.

When applying pressure, steel can take more before deforming than diamond.

There are many kinds of material strength.

Finally, there are synthetic materials that are higher than diamond on the Moh's scale.

>>3432157
Not totally true.
Dimonds or synthetics are used in extreme pressure anvils, not steels .