Prince Rupert's Drop

Taofledermaus did a vid on them

>>33790465
weaponize sperm you say?

>>33790465
>shape

it has nothing to do with the shape shithead.. its about surface tension and they are extremely brittle, touch the tail and the whole thing explodes

>>33790481
>it has nothing to do with the shape shithead.. its about surface tension and they are extremely brittle, touch the tail and the whole thing explodes

>nothing to do with shape
>it's the shape

Are you Mormon?

>>33790465
Make them into trip mines or frags.

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>>33790481
>it has nothing to do with the shape shithead

It works on the same load bearing principle as an arch, you know what the arch is a shape.

Naturally occurring shape. Not even the strongest structure.
The next war will rely not on dense brute force but flexibility that flows like water overwhelming targets.
Think swarms of tiny little needles acting like one.

>>33790521
>Are you Mormon?
Are you a moron?

It's about pressure and tension. These have less to do with the shape and more to do with the thermodynamics of rapidly cooled glass.

>>33790465
Haha, I play AC: Unity too.

Aside from the use it was put to there (somehow holding poison though it's also suggested that the poison was just the ground glass), it's unlikely to me weaponisable unless you can somehow form uniform shapes. That might not be impossible though.

If so, I'm still not sure of an application of it. It's strong but it's not dense enough to be a penetrator.

>>33790912
>It's about pressure and tension
Dude, wtf are you saying?
I'm laughing so hard, what makes an egg durable in high pressure fluids? Its shape.

What makes this Drop durable? Its shape
How we get its shape? Trough rapidly cooling glass

You are mixing shit, don't try to play it smart, there are some in here who got degrees in these shit

>>33790465
>make a few million
>drop them from an aircraft
>glass shards fly everywhere
>lots of cuts and blindness
>glass dust floats through the air
>enemy breaths
>glass dust kills from inside
>area uninhabitable for decades due to glass dust
>Dutch glassmakers considered on par with Manhattan project scientists.

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>>33790924
Encased in a shell of metal just thick enough to penetrate, but releases this thing after a certain point.

https://youtu.be/F3FkAUbetWU

1:25, it reflected a bullet

>>33790942
this

>>33790465
I'd stick it in your ear like a q-tip, then snap off the tail.

>>33790912
The CONFIGURATION of the pressures and tensions is what's important. Any glass will have various tensions and compressions, what matters is the SHAPE it's all configured in.

>>33790532
>trip mine
>trip frag mine
>trip frag
>trip fag
>!!!!

could we use our trip fags as a weapon system. like airdrop them over third world cuntrys or liberals. the autistic screeching should do the trick.

>>33790465
> Get 20 tons of glass
> Make prince rupees drop or whatever
> Laser of the weak tail with chemical laser
> Drop from 30,000 ft onto isis camp
> Either explodes into a cloud of glass
> Or acts as a bunker buster, then cloud of glass

>>33790465
>>33790565
>>33790931
>>33791680
I don't know if you're just pretending to be that stupid or you actually are.
It has to do with the cooling rates when it is made which puts huge tension on the outside, that's why it explodes when it is even scratched, but is very very hard. It could have those properties with any spherical like shape. But those properties aren't inherent to that shape. I'll say it again, it's from the rapid cooling of the drop, not just the shape.

Here is a video that will explain it on a grade school level you fucking mong.

https://www.youtube.com/watch?v=xe-f4gokRBs

>>33790521
It's not the shape, it's the crystal structure

>>33791869
The CONFIGURATION of the stresses is what makes the Rupert drop strong. EVERY differentially cooled piece of glass will have stresses, the strength of the rupert drop comes from the CONFIGURATION of the stresses.

What you're describing is how that configuration comes into being. That's not a refutation that the shape is essential.

Seriously, you must have a double-digit IQ.

>>33791926
Did you even read what I wrote? Do you know how to read? As I said, any spherical shape that is rapidly cooled like that will have those properties, but the specific shape of the Rupert drop itself isn't needed.

They are doing an experiment on the ISS to make a perfect sphere heated by laser then rapidly cooled.

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>>33790942
how easy would it be to design a machine that could mass produce them

>>33792052
>a machine that could mass produce them
you mean, anything that can put a drop of molten glass into a vat water?

>>33792008
It needs to be convex. The convex shape matters you fucking autist.

>>33790465
Make a tread about weaponizing it, let the retards fight over it's structure.

>>33792008
Stop replying you idiot.
SAGE

I fucking love these things, but they're limited by how it transfers energy through the object. The head is fucking tough, but hit it too hard, and enough of that force gets transferred to the tail and it explodes

that guys an idiot though.

>>33791736
Gotham got dem rupee drops, boy I tell youhwut

>>33790465
Looks like a high res sperm

>>33790465
YOU'RE ALL WRONG.

It is the fact that the, already non-newtonian fluidic, glass crosses a lambda point in the idealic cooling of the liquid drops to a solid yet different state of matter.

Ala Helium II, the super fluid, P.R.D.s can be S.T. [Solid Two] S.T.P.R.D.s for the layman.

>these stupee rupeesbarebthe inspiration for the power pellet in pac-[fuc]man games

> itself a direct inspiration if the caniballism allegations of GIs and All encountered hostiles during a now lampooned ad-historical event

Ala max brooks sold out for that fat BWC Pitt cock.

What a fag.

>>33792022
Alltim8 Kinetic Snowballs from international Space

Blemp

>>33790912
You're faggoting at an Olympic level. Australia is in for a run this year.

>>33793699
This guy fucking gets it.

>>33790980
That was unexpected.

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Guys, what if we made a prince rupert drop, but the WHOLE THING is like the hard end?

>>33795969

So a glass dildo?

>>33796302
What if we killed the enemy with glass dildos? They'd be so fucked.

>>33796321

>enemy "intercepts" supply crate
>pry it open
>jars of Vaseline and a note
>"blowout soon, stalker"

>>33790465
What would happen if you annealed the tail end?

>>33796302
It took 40 replies to get to this one. I'm disappointed in you, /k/

>>33792125
Yes.
We need a machine so advanced that it can melt glass and drop drips of it in water.

>>33797797
HA! Maybe in like 20-30 years. Our current technology has a loooong way to come before anything close to that could see the light of day.

goddamnit guys. It's the residual compressive stresses on the outside that prevent crack propagation in the brittle material. Once the crack reaches the central part of the glass where there are residual tensile stresses, you have unstable rapid crack propagation that makes it go kaboom. The crack propagates at about the speed of sound of the material which (IIRC) is related to the modulus of the material.

>>33797875
And the mangollion-effect.

Put it in the butt and then break it

>>33798463
Don't bring that evil into the world.

>create a twenty ton prince Rupert's drop
>coat it with steel and lead balls, maybe smart grenades
>load into airplane
>have a detonator on it's tail
>drop on a massed formation of hostiles


Itd probably be more dangerous to the people trying to weaponize it but if there's a breakthrough in making prince Rupert's drop it might work

>>33798463 #

I can show you what that would look like.

>>33798539 #

Watch this. That evil is already here.

http://www.1man1jar.org

Click that link and witness the horror.

I've always wondered what happened to the guy.

My guess is a hospital visit followed by loads of medication to prevent sepsis and a diet of peanut butter.

Also if I broke a rule, no ban pls only warning. After all /k/ posts images and vids of people being shot and beheaded because its /k/ related.

Its not considered guru for these reasons.

The link shows what weaponized prince Rupert's drops could do.

>>33790465
Make it out of uranium glass. The drop shatters, making airborne uranium dust. Target breaths in uranium. Uranium enters the bloodstream and ruins the kidneys.

>>33798569
It'd break underneath it's own weight.

>>33798583
>>33798583

He lived, went to a doctor (not the er) and showed him the video. Doctor treated him and promptly put the video out there.

>>33790474
Taofledermaus is a garbage youtuber anyways. Who cares.

>>33797797
>We need a machine so advanced that it can melt glass and drop drips of it in water.

A weapon to surpass Metal Gear.

>>33798610

No it won't.

You can make a prince Rupert's drop the size of a drop of water and hit it center mass with a hammer.

It won't break. The tail sets off the chain reaction that disrupts the molecular pull that keeps it insanely strong.

>>33798607
Somebody just linked this shit, to me, unironically. I have been here too long, history repeats cruelly.

Sunshine take me home, I miss the woods.

>>33798625

Good.

I deleted and reposted with a disclaimer to mods in case I got reported.


FFS I got banned 3 days for posting medical photos on /sci/ because of the guru rule....

Its not guru if it isn't pornographic and board related.

So don't ban me pls.

I've got a lot of posts I made in this board and one on /an/ so I want to fulfill my obligations to respond to anons.

>>33798670

Oh yea, I couldn't believe 1man1jar was still around.

But its related and shows how dangerous glass is.

Glass can fuck you up.

I bet meatspin is out there still, too.

I wonder if duckrolling still happens on /b/

>>33798704
Shut the hell up, why would you think this shit ever vanishes.

You think that porn that the actresses try to get redacted because it's embarrassing ever really goes away? Sorry.

>>33798688
Nigga you a newfagcrazyget

>>33798704
>I wonder if duckrolling still happens on /b/
Not really since greasmonkey scripts, later 4chanX, and later yet 4chan itself integrated functionality to preview posts on hover, making it very obvious when it is a cross-thread post.
Same thing with inline embedding of youtube videos.

>>33798688
That's pretty pathetic anon.
MODS=FAGS
Cowing to them is lower than tripping for attention.

>>33798795

Everyone makes mistakes. We live and learn.

Shaming someone for the rest of Their life is cruel and breeds hatred and murderous thoughts.

I bet you've some dumb shit, too. We all have. What if you had ghosts watching you, never letting the world forget the dumb shit you did? Because I know you've been embarrassed too

If you learned and repented from your ignorance/stupidity, then it should be forgiven.


Can't we all just move on with our lives?!

If these dumbass vids are still around in 60 years I will be disappointed.

Kinda like Mr Hands.... I guess he got lucky he died.

>>33798795

I wonder if what the CIA redacts ever goes away.

Same with whatever secret projects we have.

>>33798900

I'm not cowtowing to mods.

I just wanted them to learn discernment.

Without mods we would still have cp raids, doxxing, people, posting cryptic directions to where the bodies are buried, organized raids, etc

I just don't like being banned dude

>>33798688
Eh, just make it /pol/-related and you'll be fine.

>>33798946
Okay, why don't you got scoop up a nice literal doggy gabgbang beauty. Or one of those facial abuse girls. It's not like doing that stupid shit with the paid-for-purpose of degrading themselves for others disgust+attraction bottom barrel scraping, totally the same as an accident. Yeah...

>>33798964
Being this big of a n00b

>>33790465
>all these people who don't know the shape is a bi product of its manufacturing and irrelevant to its strength.
Lrn to thermodynamics.

>>33790474
He made the drop incorrectly

>>33799014

A lot of women are COERCED into porn to pay rent because of the lack of decent jobs.

"Suck dick on camera for the world to see so you can pay rent. Or you can be homeless and get raped in a shelter anyways."

That's the choice many have. Forcing people into porn is human trafficking and rape.

You need a little human compassion and you should brush up on laws. I'm no lawyer but so much of this feels wrong.

>>33798964
>tldr i am a huge faggot please rape my face
So what you're saying is MODS=FAGS?

>>33791680
>>33790931
>>33790565
>>33790540
>>33790521
You do realize Gorilla Glass on phones is done using the same principle as Prince Rupert's Drop. It's what makes the glass so tough and impact resistant. The shape means fuck-all and the application of how the glass is created is what gives it the strength.

Prince Rupert's Drop is just the easiest, simplest and "natural" way to create/demonstrate the phenomenon.

>>33791926
Double digit could be 99, which is by all accounts completely normal. You basically just said "you're likely of normal intelligence". Good job anon.

>>33799207
>petty whores don't exist
Do em up son, I am so not into them.

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sounds fake, otherwise this would work.

>>33798704
meatspin still exists. I visited it a few weeks ago for nostalgia purposes.

>>33791660
says right on the fucking package DO NOT INSERT INTO EAR CANAL

>>33793699
fucking five star post, you magnificent bastard

>>33795969
we call that an egg

>>33798946
reddit/tumblr bait is best bait, but trolling /k/ is child's play. its like picking on the special ed kid on the bus. yeah its easy and you can do it, but nobody is impressed and most feel you're just a disappointment

>>33798964
>Without mods we would still have cp raids, doxxing, people, posting cryptic directions to where the bodies are buried, organized raids, etc

all the shit that made 4chan worth coming to

you need to get back to your liberal hugbox echo chamber. you're a looooong way from home, kid.

>>33799207
>A lot of women are COERCED into porn to pay rent because of the lack of decent jobs.

show me the town that doesn't need any waitresses or housekeepers

go on, i'll wait


they strip because women are lazy and its easy money

>>33799973

My home town has 2000 people. My mom and family would drive an hour to work each day.

Yes, legit jobs can be hard to find.

I've been to my cities unemployment office twice oner 3 years. They had the exact same jobs in their system both times, none of which I was a candidate for because I have a criminal history for giving away two joints. And this is in a town with 30,000 people AND an air force base!!!!

I believe it's a government funded employment agency...


And its obviously a scam. The SAME jobs after THREE years?! Scam. Public service bamboozlery to scam taxpayers.

>>33799962

It was entertaining when different chans had wars but when individuals got targeted it was a crime.

>>33790540
No, it isn't about the shape.

You make them by rapidly cooling molten glass. Due to the slow heat transfer in glass, this means that by the time the whole thing solidifies, the core will be quite hot, but the surface quite cool. As the whole thing then cools to an even temperature, the core wants to undergo significant thermal shrinkage, while the skin doesn't. As a result the core will be trying to pull the skin to a smaller size, while the skin stretches out the core. The inside is put under compressive residual stress, and the core under pulling residual stress.

Now for a tough material, this wouldn't matter much. But glass is hard and brittle. Such materials are very sensitive to being pulled apart, but resist compression very well. And when pulled apart, the failure mode is almost always that a small crack forms around some surface imperfection, and then grows rapidly, resulting in the material breaking at a much lower load than its tensile strength. Under compression any such crack will instead be pressed shut.

So in the Ruper's drop we put the part where failure is likely to start under a compressive load, which it can handle quite easily. Any straining load put on the surface must then first cancel out the compressive load simply to get to zero, after which it can start trying to crack the glass. As a result the glass is significantly toughened, to the point where its high strength will be apparent no matter how we stress it.

Hardened glass uses exactly the same mechanism, but usually in a vastly different shape.

>>33800617
10/10

This post is glassblower approved

>>33791884
It's the shape.

>>33800676
>This post is glassblower approved
Can you make a spherical version with no tail?

>shoot Prince Rupert bullet at someone
>bulb penetrates person, goes in
>tail reaches skin, sets off explosion
>bulb explodes inside person, sending a billion tiny bits of shrapnel into their innards
Fuck Austrian jagdkommando daggers, let's see a team of six million surgeons try to fix THAT.

>>33800434
Tell me about when you found your mother's pornography; did you...
>fappu
?

>>33801504

My mom never had pornos.

She had a ton of erotic literature though.

And yes, I masterbate to porn. I try to only jerk to people that are obviously OK with it.

I dont like feeling even more disgusted with myself after I nut and close 20 browser tabs.

And I can't control it, either. I have no control over my hormones, I didn't get to tell puberty "no thanks, you're more trouble than your worth". I can't control it if I get a bonerr at work.

Its like my own body rapes me ;_;

>>33801828
Git the fuck out

>>33801828
>marten from QC

You best learn to control yourself, "boy."

>>33802287

No u

>>33802337

That'd be scary being able to boner whenever I want. Right now its got its own mind.