Why aren't we making knives out of obsidian by now?
>500 times sharper than steel
>2000 times finer edge than steel (3 nm vs. 0.4 mm)
>so fine it cuts between cells (unlike steel, which tears apart cells) creating wounds that leave no scars when they heal
brittle
This. Might make sense for surgical use with scalpels though. Though then again that would be one time use and it might be more expensive to produce.
>Might make sense for surgical use with scalpels though.
it's so brittle that it can't handle being sterilized. that amazing edge crumbles because it heats up (and expands) much faster than the thicker areas behind it.
Just sterilize it with x-rays and alcohol
>Though then again that would be one time use
scalpels are already one time use instruments.
Some surgeons do use obsidian scalpels to minimize scarring or for extremely delicate tissue though. They're just significantly more expensive, and a much higher risk since if you break off a chunk of obsidian in a patient, that would be fucking bad.
>surgeon smashes a beer bottle over the anesthesiologist's head
>picks up one of the larger shards
>starts cutting into the patient
>damnit Kevorkian, you're a loose cannon!
Anesthesia deserved it giving him those shifty eyes over the sheet.
I give you whatever eyes I goddam want you blood stained ape
t.anesthesiologist
Just out of curiosity, how scared are you of fucking up the mix and having somebody be paralyzed but not unconscious or anesthetized during a procedure? I had a time where I was getting my guts worked on and that scared the shit out of me.
Why not smash it over the patients head so you don't have to hire anesthesiologist
Shits brittle.
Not durable enough for field use, EDC etc.
want to know how I can tell you know nothing about metallurgy or material science?
>want to know how I can tell you know nothing about metallurgy or material science?
I hear breathing is a gnomish science trick. Try to stop breathing. You’ll be saving the white race, brother!
>PrepHole finds out poltards are aggressively anti intellectual
I'm aware, I just wish they'd fuck off back to 4chan
it's like they fell for every single psyop designed to make them weak and stupid
>implying they weren't already...
samefag harder chud
at any rate I'm definitely not samefagging, can't speak for the other 3
Fuck off 4chantard. Nobody thinks about trannies as much as you. You have a serious sexual problem which you can relieve by injesting a .500 bushwacker pill with your supper
like pottery
Why wouldn't it be? It's full of third worlders.
They're not anti intellectual, they're just really fucking stupid.
>anyone implying they are slightly intelligent or educated is a direct attack on my psyche and must be bullied immediately
>this redditbrain actually thinks he is "slightly intelligent or educated"
learn how to greentext newfag
post your reddit account chud
>One of the most apolitical, hard, manly sciences in the world is SOI because I SAY SO
i bet you like "hard and manly" things up your pozzhole you degenerate sodomite
sphere of influence?
>science is basedjak
consider stepping out of your echo chamber
>science
>arguably the whitest thing to ever exist
>4chan hates it
Really males my synapses spark.
So this is where we're at now huh?
Just blatantly hating all science and knowledge just because retards use the word like a god?
This was a funny reaction to a smarmy fag post and the pussies thinking otherwise and taking it personally can go fuck themselves.
You do you, anon.
>muh science
Stop being gays about knowledge, it's not inherently gay, but some people make everything they touch gay.
It's brittle, not elastic and I'm pretty sure you can't sharpen it as easily as steel. Mass produce too. Might be good for scalpels or razors but sure as hell not knives.
We did for like 100,000 years.
>average PrepHoleommando morning
>wake up
>piss
>brush teeth
>think up three ideas with brainpower of Stone Age forager
Are you the same retard who made that double barreled grenade launcher thread? Please tell me there's not more than one of you, what are your wranglers even getting paid for you horrid little mouthbreather?
They still use obsidian scalpels in plastic surgery, specifically for the last reasons. They're not suited for any combat use because they break/chip too easily.
>They're not suited for any combat use because they break/chip too easily
Iberian hands typed this.
>middle guy has a pokeball emblem on helmet
It's an actual pokeball in case he comes across a jaguar.
Si, we proved that steel is better than obsidian when we conquered the new world
Its brittleness makes it useless as anything more than a one-time use scalpel.
doctors use diamond knives, which is superior (though more expensive) than an obsidian blade
Nothing is "superior" to an Obsidian blade, tard. It's literally the sharpest blade material known to man.
it's less brittle unlike you bitch
literal stone age technology
superior how?
It doesn't leave pieces of itself inside you for once.
diamond is the strongest metal
Diamond blades are much tougher than glass blades, but they are not sharper.
They still use glass blades in microtomes, which prepare ultra thin electron microscope samples
True, diamond is the hardest metal known to man after all.
>diamond
>metal
he knows too much
technically, yes
they had scalpels made out of the stuff, then ss became better, and sharper.
The do for surgical scalpels. Outside of that there's little too no use for that that can't be done well enough by steel.
For some context, an obsidian surgical scalpel can run about $120 each on average. Lowest I could find was $80. Considering that nearly-as-sharp stainless could get you hundreds of blades for that same price point, it's pretty obvious why, considering that there are zero combat-related reasons why you'd need a blade that tiny bit sharper than stainless.
The BIG thing coming are vibroblades in an end-user (read: out of the laboratory) capacity. The motto for them should pretty much be "Kevlar? Never heard of it." Doesn't do much against solid armor, of course, but when you considering the people that would be using a blade like that, it suits its purpose.
>nearly as sharp
Lmao
Go ahead and tell me the combat application that could only be done by obsidian and not by steel?
I'm not talking about combat applications, saying steel is nearly as sharp as obsidian is just straight up wrong
I AM talking about combat applications. You can take the technical semantics to PrepHole.
>Why not make knife out rock, steel hard make, me use rock, rock sharper! ME SMART!
>t. gay ass OP
posting anywhere other than 4chan will slowly turn you into a chud, you'd better go back there before it's too late
Because obsidian has almost no toughness. Because it's a glass.
That is my favorite topic when discussing you “people”. My second favorite is murder.
I try to watch YouTube vids of steel smiths making knives…but too many homos and/or autistics. I mean why do you have to be a homosexual Aspbergers victim to have a channel with views?
If you're able to focus on other things, it typically means you can't put the kind of effort you need to in order to make engaging content. I never could, thanks to having to work for a living in a job that's mentally taxing to the point where I just want to watch something funny when I get home rather than imagining what my 'next episode' will be like.
They do sell them commercially but they're limited to scalpels and meme chef knives.
This is bait, right anon? There’s no way you put this much research into obsidian without realizing that you can break it if you smack it hard enough.
This triggers the Spaniard.
Having seen the local weapons in action, the Spaniards... decided to keep using their own steel blades. And it wasn't that they saw anything wrong in using locally made gear, they happily strapped on local armor and ate the local food.
The Aztecs in return saw what Spanish steel could do, and made use of whatever swords they managed to capture.
These literally shattered repeatedly on the Spanish metal armor. The lack of Aztec metal weapons was a primary factor in their defeat by Cortez.
>500 times sharper than steel
Sure, that sounds all impressive and shit... until you remember that we don't know anything about how they measured and calculated that and as such it doesn't doesn't tell us anything what so fucking ever. It rather has a high probability of just having been pulled right out of someone's arse.
Now what we can tell is that, yes, under a microscope you can get a ridiculously fine and sharp edge. But outside of small surgical scalpels, you don't get just one edge. Look at this thing, every little scallop along the edge is one fine, sharp edge. But in between them there are little "nubs", discontinuities between edges. When you cut each and every one of those will snag and add drag, making the knife overall less sharp. Adding insult to injury all the little edges we have also won't be perfectly aligned, so no matter how you hold the knife you won't have perfect edge alignment, making it harder to cut.
Moral of the story: trying to judge a macroscopic item's usefulness purely by microscopy is fucking retarded.
>so fine it cuts between cells (unlike steel, which tears apart cells) creating wounds that leave no scars when they heal
More from the "sounds impressive, butt"-category. The specific inflamed anuses in this case being that first you're not a surgeon, and as such being able to make wounds that heal with less scaring is utterly useless to you. Second the mechanism you claim for it is obviously complete bullshit, since the surgeon can't see the cells to aim in between. (If you had some experience with sharp and pointy things you'd also know that blunt things can nudge stuff aside to slide past, sharp bites in.) Instead sharper blades make cleaner cuts, and cleaner cuts mean less cells were damaged, and so they heal with less scaring. Once again this is only the case with teeny tiny little scalpel blades for obsidian, since the nubs and misalignments of anything larger will instead mean you're slicing up tissue all over the place.
They use obsidian scalpels for eye surgery.
As an experienced outdoorsman, I will buy an obsidian knife when you can baton with one
>be me in HS
>geology class field trip to the beach
>teacher finds some obsidian and does a little demo where she cleaves it in half to show that it's glass inside
>"okay class I'm gonna pass a chunk around. BE VERY CAREFUL"
>tries to delicately hand me a chunk that's about the size of my palm
>she accidentally drops it like 1 inch onto my hand and it feels funny
>blood.pdf
>I look down at my palm and see bone
Just the little drop into my palm gave me a gash at the base of my index finger that required 5 stitches. Obsidian fucks.