/sci/ - Science & Math

>>14508559
>university student too stupid to use a lathe
challenging, complicate piece of machinery, how is it that literal millions of people who were too dumb to get into an ivy are capable of keeping a lathe in their garage and use it safely, but a yale roastie is incapable of the same feat? are they letting low IQs into ivy league schools these days?

>>14508548
>not wearing a lab coat
looks like she wasn't qualified for the job, how did someone so stupid manage to land a research assistant job? are they giving out research assistant jobs to low IQ foreginers these days?

>>14508523
>another lab leak conspiracy thread

Go back to your containment board, incel.

>>14508523
one of the dumbest and most spectacular and laughable science deaths i've heard of is the jew astronomer marc aaronson being crushed to death by a moving telescope dome when he stepped out onto a poorly designed balcony to smoke marijuana during one of his "observing" sessions.
the balcony in question was designed by astronomers who were not qualified to be designing buildings, it was put together in such poorly thought out slapdash fashion that they ended up with a balcony on which the door would be blocked an unable to open when certain parts of the dome were rotating by and that would leave anyone on the balcony at that time with the option of either leaping to their death from the balcony or staying out there and being crushed to death by the moving mass of the telescope dome. it was a known flaw, but astro genius aaronson was too smart to heed the warning sign on the door, he was too determined to smoke marijuana to be stopped by a silly little sign. so he chose being crushed to death by the dome rather than leaping and trying to survive, his body was smeared high on the outside of the observatory and the dripping blood froze in cold night air and when the sun rose in the morning the bright white observatory building had bright red icicles, smears and drips all over it, looked like an enormous used tampon. nobody knew how to deal with the situation, it wasn't until late in the day that equipment was able to be brought in to reach and clean off the mess sticking up into the sky from kitt peak.
>low IQ jewish drug addict larps as scientist, dies of a combination of his own stupidity and the stupidity of the previous generation of architect-astronomers

https://www.bestmastersprograms.org/10-most-educated-darwin-award-winners/
>This Darwin Awards honorable mention clearly doesn’t have a way with animals. While working in a geology lab, a scientist named James was bothered by a wasp nest. Ingeniously, he decided that the best thing for it was the powerful suction of his Dirt Devil vacuum cleaner. Once all of the wasps were safely inside, however, James was faced with the problem of killing the pesky insects without letting them out.

What happened next just goes to show you that there’s a world of difference between “book smarts” and common sense. The scientist took hold of his trusty can of Raid and sprayed it down the nozzle of the vacuum cleaner.

Unfortunately, vacuum cleaners generate heat, and the Dirt Devil ignited the flammable aerosol, burning off James’s facial hair and bursting the dust bag open. The hapless scientist then suffered a barrage of stings from the furious wasps that had survived the explosion.

>>14508590
you try very hard to find an excuse to post that pic in every thread, don't you

>>14508523
I once almost maimed my teacher.
I moved a mercury thermometer in an old temperature regulated environment (forgot the name, I was in highschool) and it fell onto the heating element without me knowing.
The teacher went to check on the agar plates and the glass thermometer was moments away from exploding onto her face with boiling water temperature mercury.
She never knew that it was me, lol. I was later head of lab care and procedures.

>>14508579
>challenging, complicate piece of machinery, how is it that literal millions of people who were too dumb to get into an ivy are capable of keeping a lathe in their garage and use it safely, but a yale roastie is incapable of the same feat?
Workers are killed by their machines all the time.
https://www.safetyandhealthmagazine.com/articles/21631-face-report-machinist-dies-after-being-pulled-into-manual-lathe

>>14508523
Don't know if you could call it a lab accident, but this happened to me at home:
> Working on an electric motor, was just done testing it without any loading on the axle
> Attach coupling piece to fit axles of different diameters
> Run the motor again, this time with the coupling piece
> My retard self did not realize that the coupling thing was flexible (to dampen irregularities)
> NB: high-speed motor + flexible thing = bad news
> Spinning at full speed, the coupling piece bended itself 90 degrees
> Next second it ripped off the axle, sending it out with a speed of probably 100 mph
> I know have a fat dent in my roof, and PTSD

>>14508523

Once I spilled some very basic solution on my thumb. The skin on there has been rough and dry ever since lol

>>14508934

>>14508523
someone post the one where somthing bloody exploded

>>14508523
>postdoc
>>14508548
>research assistant
>>14508559
>undergraduate
HE DOES IT FOR FREE. wait.. HE LITERALLY PAYS TO WORK

>>14508523
I'm pretty sure the kind of destruction depicted requires a mixture of flamable gas with air or oxygen inside the cylinder aka something incredibly retarded, and has nothing to do with it being grounded or not.
Also now that I look at it carefuy I'm even more sure that it's an air compressor tank and not any kind of flammable gas cylinder.
Unless they were trying to pump flammable gas using an air compressor, in which case they rightfully deserve everything that hapened to them.

>>14508999
RA and postdocs are paid positions, bro. and the undergrad might have been getting paid too.

>>14508654
Couldn't he have just out his hand over the nozzle while it was still on, the resulting drop in pressure fatally damaging the wasps?

>>14508926
based scientist blowing shit up to see what happens

>>14508548
>>14508559
>>14508523
>not wearing lab coat
>hair not tied back
>flammable & explosive gases transported improperly

Women and minorites must avoid labratory settings at all costs.

>>14508619
Get rekt jew.

>>14508619
kek, how tragic and hilarious

https://www.youtube.com/watch?v=iRUSQm5ZskQ

>>14508523
so I have an aeropress coffee maker. One day the seal failed and sent coffee FLYING EVERYWHERE! it almost got our $15,000 supercomputer wet.

>>14509213
Ding-a-ling, MD

Where I work we have these high voltage DC supplies we use for testing shit. It malfunctioned and railed its 5000 volts DC on one of its output. A technician unpluged this connector trying to figure out why it was working and touch the contacts. He got cooked. Should of turned off the supply before examining it but he didnt. One hand on ground other on 5000 volts. Didnt see it happen only the aftermath.

I took a class that involved transformers. We had a girl in our lab group who was loud-mouthed and always causing drama. Her only job was to make sure the power was shut off when connecting wires. We called over our TA to help with the setup and he got zapped while touching our setup because the dumb bitch forgot to turn off the power.

>>14508523
Kathryn Wetterhahn. Spilled a few drops of dimethylmercury on her gloved hand and died.
https://youtu.be/9UWhBROhp48

>>14510090
>Her only job was to make sure the power was shut off when connecting wires

It is everyone's job to know that a machine has been isolated before anyone works at it.

This is as much your fault as it is hers.

>two guys carrying a bucket of HF
>the cap is loose but they don't realize it
>they drop it
>gets on their skin
>tens of people rushing around looking for antidote cream
>no one knows where it is
>hospitals in town don't have it
>they die painfully within an hour of rapid osteoporosis or some shit
Probably just be a myth, no one is that stupid

>>14510196
>>tens of people rushing around looking for antidote cream
milk also works

>>14508619
That's fucked up bro

>>14508619
Did he actually do marijuana?

>>14508619
why was this deleted?

>>14511344
The picture of Charlie Chaplin making fun of a humorous death.

>>14508654
Honestly that would have seemed like a pretty good idea to me. I probably wouldn’t have vacuumed a wasp nest though

>>14508523
Working on a magnetized plasma experiment, 4-5 T range. Undergrad brought a new optics setup in while the magnet was energized a few years ago. All non-magnetic of course… except for one little set screw that had been overlooked.

Walked near the fringe field area and it literally ripped the set screw out of the casing, pulled it into the bore, and punched a hole through a 1” borosilicate window in the vacuum chamber and the rapid pressurization blew out a turbopump.

Didn’t have to quench but it was about $10K to replace the turbo, the window, and repair the optics setup. Thankfully wasn’t me, that kid was in DEEP shit.

>>14511496
That’s nothing for colleges, that’s half one student’s tuition

>>14511555
where the fuck do you go that costs 40 grand a year?

>>14511574
>$40k
That's state school tier. University of Michigan is running in the $50's, especially when accounting for all the nonsense courses they pile onto undergrads these days.

i stopped working in a BSL2 lab because it's not safe
for instance, industry-wide, "smartest" PhDs at the top institutions in the world, and nobody has figured out that DMSO permeates nitrile

>>14511344
4chan is a tightly moderated propaganda distribution website thinly disguised as an anything goes imageboard. Its pretty much the same as on all the other big commercial social media networks.
>boy genius invents website, errrbody loves it. same story as on so many of the ZOG propaganda distribution websites. coincidences. facebook, reddit, 4chan, google, duckduckgo, twitter and many others all start with this story. defense contractors lead the way in computing until about 1990 or so and then they just disappeared from the scene and kids from the Wargames archetype took over. coincidences.
How come its never been
>seasoned veteran computer expert invents popular social media website
Aren't the experts smarter than kids?

>>14511602
or how you have to work around tissue culture apparatus covered in warnings that you will be exposed to BSE by using them (which cant be sterilized)

https://arstechnica.com/science/2021/07/second-lab-worker-with-deadly-prion-disease-prompts-research-pause-in-france/

>>14508840
Yeah just now im sitting next to a construction site. Theres a big digging bulldozer moving dirt around and a guy/checker is sitting within 1 meter of the path. Overconfidence, any mistake he will be clobbered by the shovel

>>14511574
>40 grand
i…what?

>>14511585
i go to a state school and i only pay like 12k a year

>>14511608
>They can be frozen for extended periods of time and still remain infectious. To destroy a prion it must be denatured to the point that it can no longer cause normal proteins to misfold.
>Sustained heat for several hours at extremely high temperatures (900°F and above) will reliably destroy a prion.
Dios Mio. I didn't know prions were so hardy. This is fucking dangerous shit to work with then.

>>14511670
Prions are fucking terrifying.

>>14508523
Accidents are not isolated to labs

https://www.youtube.com/watch?v=URd1AcouKJg

>>14508523
that time in wuhan, shit was so cash

>>14511607
>boy genius
>moot

>>14510065
>aftermath

Is 5000V DC always dangerous even with nanoamps?

>>14509213
>god I told you not to mess with a choking hazard

Is he a 3 year old? kek

Are eyewash bottles always safe for all things that might get in your eye? Are there any chemicals that would react worse?

>>14508523
I was a building over when this happened and when we got out of class the police had roped off the parking lot and wouldn't let the professor get to her car lol

>study chemistry in east germany
>idiot colleague gets yuuge soviet-era brown flask of chloroform out of the unis catacombs
>lets it fall onto the floor, one liter of chloroform spiller everywhere
>everyone leaves the room
>supervisor - old-school east german chemist - tells idiot colleague that since he spilled it he has to mop it up alone in the room
>does it but never leaves room for 15 min
>supervisor looks inside and idiot colleague lies unconcious in puddle of chloroform lab coat soaked
>naked idiot colleague pulled out of room and driven to hospital
>supervisor still employed to this day at the institute
fucking east germany

funny anekdote about the east german supervisor: He would prohibit the use of gloves because he said we would work more cleanly if our own skin is at risk. Actually pretty true and works but when it doesnt work youll have brown fingers from HNO3 or a lot of worse stuff that happened

>>14511973
Thats not how he was portrayed in The Washington Post, a glownigger mouthpiece, when the glowniggers were selling 4chan to the general public as "this is what the hip cool kids on the internet is doing". Fox News, another globalist glownigger media outlet, was telling everyone that 4chan is "hackers on steroids" absolutely certain to draw stupid, easily manipulated, drolling retards who thought their cyberpunk anime was coming true in irl.
lmao that you fell for it, you are low IQ, you are the target audience for the 4chan psyop. Now you have a heart full of stupid, wrong ideas that got placed in there by glowniggers as a result of your gullibility.

My undergraduate uni had a good story the safety officers would tell at every safety induction day:
There was on organic chemistry summer student who was tasked with working on a particular reaction. The reaction was air sensitive so had to be done under nitrogen (i.e. in a sealed vessel)
They began with the literature - and it worked pretty well. The next step was to try it on a different molecule. It didn't work. The student then came up with an idea - replace the 20% ammonia with 90% and instead of ambient temp heat the vessel.
The vessel ruptured, the glass shards went everywhere, almost cutting the students throat in the process. He had to be rushed off to hospital and luckily survived.

>>14508999
trips wasted on displaying ignorance about Uni

>>14508546
>disabled pressure relief valve
for what purpose

>>14512380
>Whenever I hire a new batch of grad students, I always set one of my fluorine tanks to explode at some random point in the next week. Wouldn't want anyone unlucky in my lab, unlucky people are a liability.

>>14508814
It takes much higher temperatures to boil mercury.

>>14512380
Probably scared the shit out of them every time it went off.

>>14511987
>Is 5000V DC always dangerous even with nanoamps?
No. Common sparks and static have thousands of volts and also van der graaf generator

>>14512380
It's called "We do a little trolling"

>>14512310

>>14508523
the other day I dropped a box containing a bunch of chemicals, mostly commercial building blocks in glass vials. Only one of them broke and it was some old dirt cheap SM that no one would miss, the rest were fine. Still I had to crawl around on the dirty storage room floor to find them all.

>>14508548
this was tert-butyl lithium iirc

>>14512253
>replace the 20% ammonia with 90%
Wouldn't it be gaseous ammonia at that point?

>>14512380
Venting nitrogen is such a waste of gas

>>14514232
Smellin Lithium now.
https://www.youtube.com/watch?v=Wolcpa9s6NU

>>14512004
Guy sounds like a bit of a tard. He's to chemistry what a bush-doctor is to medicine

>>14514014

And without the valve there is no time to be scared.

>>14511955

Lab accidents are more retarded than general workplace accidents because labs are filled with obnoxious midwits who are too smart to need silly safety videos

I would expect some extremely dumb shit at university labs where niggers have absolutely zero practical knowledge.

>>14514553
Just incredible math

The place my uncle works at was researching "high density batteries" for aerospace. Something went wrong and the experiment caught on fire. It burned two labs to the ground and the entire building the labs were in was closed for 2 weeks. Most common workplace injury was scientist falling down the stairs while distracted by talking to a colleague.

>>14508548
wtf do they make lab coats out of that turn fatal third degree burns into a nothingburger?

>>14508654
Fuck your raid explosion. I vacuumed up gun powder. Grow a pair.

>>14508934
Damn that could potentially be very serious. Can you still jack off?

>>14509223
>$15,000
>Supercomputer
>$15k
>Super
No that's just a computer anon. A supercomputer costs $15,000 per kilogram.

>>14511344
Jannies are using the deleted thread to dilate.

>>14515812
>math
I've thought it was meth all this time. huh.

>>14508559
>lathe accident
Ive seen enough gore vids on /gif/ to know how that turned out

>>14508548
why is a third degree burn worse than a first degree burn but first degree murder is worse than third degree murder?

>>14508559
>hair caught in lathe
god damn what a way to go out

>>14510251
cream sounds stupid to apply, probably poisoning the helper to if he has no gloves.

>>14516402
>turned out
cheeky cunt.

>>14516431
>cream sounds stupid to apply
it may be the difference between you keeping and losing the arm
>probably poisoning the helper to if he has no gloves.
thats true of anything

>>14516402

>>14508523
>Working in inorg lab
>We all do small scale wet chemistry in the GB
>People just dump GB waste in one of the fumehoods and then clean it up once a month
>Working in the GB with an undergrad
>Other grad student is cleaning GB waste with MeOH
>I hear from behind me "oh fuck"
>Entire fumehood is fire
>Undergrad starts freaking out
> Flames are moving towards solvent waste & oil baths
I ended up just spraying it all down with a powder fire extinguisher and it was a bitch to clean up.
I think it was a vial of Pd/C or maybe potassium

>>14512004
> we would work more cleanly if our own skin is at risk
This is very true. Once you get to an advanced level in chemistry, you will see most people working without gloves. There are situations when you should put the gloves on, but a lot of spills are caused by the gloves. The outside of your glassware should be clean.

>>14508523
Someone didn't clean up properly after dissecting a deer carcass in the wildlife lab I worked out of and it gave me cutaneous anthrax. I was in the hospital for 5 days getting all sorts of fun drugs pumped into me.

>>14508523
I always thought I wanted to work in a lab. Thank you for changing my mind

>>14517042
Accidents are bound to happen when your primary directive is to fuck with whatever is presented in front of you.

>>14515892
>wtf do they make lab coats out of that turn fatal third degree burns into a nothingburger?
it's more that you are supposed to be able to quickly remove a lab coat if it catches fire, or gets anything particularly nasty on it. I expect most are made of somewhat flame resistant material as well.

>>14516617
don't your fumehoods have automated fire suppression? All the ones I've worked in do.

When I started my chem undergrad there was a story we got told by the h&s guy that supposedly happened at the uni
>Postgrad working in research lab
>Cleaning glassware left in fumehood
>RBF with some silvery shit left in it
>Add water
>RBF explodes and sends a shard of glass through the fumehood sash
>Lacerates student's arm, comes clise to severing brachial artery
Not sure how true it all was although the showed pictures of the aftermath. Don't know what the substance was either, some kind of alkali metal, metal hydride or organometallic maybe?

>>14517160
Another one I didn't exactly witness but knew the guy it happened to
>Attaching vacuum line to glassware (probably buchner funnel or some such, not sure)
>Won't go on
>Tries forcing it
>Glassware breaks with this guy forcing his hand towards it
>Lacerates several tendons in his hand
>was still doing hand exercises to regain function when I met him
It's a classic lab accident really, often it's the glassware that causes injury more than anything else.

>>14517180
>Applying unreasonable force to glass.
Yeah. Shit's bound to go wrong anytime force is required without the appropriate tools and failsafes. Also, iirc tendons don't grow back.

>>14517201
Yeah not forcing glassware is one of the first things you're taught but some learn the hard way. Still sometimes glassware is defective or cracked without being immediately obvious, hence I alsways try and use glassware with screw-on fittings for vacuum or nitrogen lines as opposed to the ones you have to push on

>>14508605
Lab accidents happen retard
I work with liquid nitrogen. I know this shit better than you do

>>14508523
a classic
https://www.youtube.com/watch?v=NJ7M01jV058

>>14508559
>>14508548
Holy shit what is this autistic bullet point format. I am not demanding some oversocialized AskReddit "storytime", just at the very least 4chan greentext-tier sentences.

>>14508523
Any gifs that are worth of a rekt thread?

>>14508926

>>14517718
honestly they kind of read like greentexts

>>14511585
Back in my days, we were running in the 90's

>>14508901
>and PTSD
Based estrogen haver

>>14508934
I had dry skin that wouldn’t go away on my the top of my foot. Convinced it was a fungal infection. Anyways, I poured hydrogen peroxide on it. It’s permanently discolored now, but at least it isn’t dried out anymore.

>>14511632
It’s maybe an out-of-state school more than a state school.

>>14516636
Sounds kind of like the construction retards who tell you they don’t need OSHA because they are on the ground and know better
>and then mysteriously die of a preventable accident

>>14508559
Why would an undergraduate be working alone after hours?
Why does Yale have lathes?

>>14508605
Bot?

>>14511602
Yeah nitrile is not really a great barrier desu. I go through a couple pairs just doing an oil change on my car because it seeps through so quickly.
>>14517226
They sell pic rel in the fishing section of most sporting goods stores. Might save your tendons if you're ever stuck with hose barb glassware

>>14508523
nothing too serious, but in my uni:
>first was an explosion in chemists lab, few years back
>one student hurt, went to hospital, overall fine
and
>be me
>phys undergrad, talking to lab manager
>ask him about the super high quality microscope im using, specifically the cost of it
>tells me it was free for our faculty, he took it from the chemists
>says a year or two back some chem students spilled acid on the microscope and it hasnt been in use
>chem lab just gave it to us
>he fixed it, apparently the acid hasnt really damaged anything important
chemists cant stop fucking up can they

>>14508559
>>14516425
Bald bros... we cant stop winning

Not really an accident, but i once worked in a fume hood where someone else had previously worked on prions with and they had spilled something. I forgot to ask what it was they spilled (if it contained something prion-like). It most likely was just something innocuous, but given how prions can stay dormant in your system for so long, i do freak out from it from time to time.

>>14515892
>>14517101
Ours are just cotton. It will burn, but it will not stick to you and can be easily removed assuming you have push-in buttons. Many synthetic fibres are basically thin threads of plastic which will not only burn easily but melt onto your skin, covering you in a napalm shirt which cannot be removed.

>>14518371
Many science departments have workshops with big tools like lathes because every once in a while you need to make something customized for your experiment or lab. Across many labs and groups it starts to make sense to have a departmental workshop. I knew someone who spent more time in the workshop than the lab, one of the things I regretted was not getting gud at workshop usage while I could.

As for why alone after hours, she was an adult and should not need babysitting. Sometimes you need to stretch the work hours to get everything done.

>>14508523
>last chemistry lecture before christmas and new years
>traditionally some firework show
>assistant held an explosive chemical in her hand when it went off
>fingers lost, she panicked and ran out the lecture hall spilling blood across the blackboard
>fireworks show no longer a thing
wasn’t at the incident myself but met her later at university, she’s a smart woman and was doing a phd iirc
they managed to save like a thumb and a finger and her hand looks like there have been multiple surgeries been done to retain at least some function. poor gal

>>14518805
are prions dangerous? theyre just proteins right?

>>14519257
they can cause lethal diseases that are incurable and untreatable. mad cow disease is an example.

>>14518936
>they managed to save like a thumb and a finger
i bet she gives crazy handies

>>14518828
>Many science departments have workshops with big tools like lathes because every once in a while you need to make something customized for your experiment or lab. Across many labs and groups it starts to make sense to have a departmental workshop. I knew someone who spent more time in the workshop than the lab, one of the things I regretted was not getting gud at workshop usage while I could.
I don't see how an undergrad would need to make something customized for a lab experiment
>As for why alone after hours, she was an adult and should not need babysitting
Apparently she did need babysitting....

>>14520312
>I don't see how an undergrad would need to make something customized for a lab experiment
It doesn't need to be anything particularly complicated. I don't see why it's difficult for you to comprehend why tools are useful to almost everyone.
>Apparently she did need babysitting
With that logic you might as well make everyone have a babysitter with them at all times because anyone at any time could have an accident, possible influences by less-than-perfect judgement.

>>14509079
He was a geologist, so there was more than likely alcohol involved in his decision making progress.
t. working on my masters in mineralogy

>>14508548
proof that retarded brown women are foisted into grad school

>>14520427
The biggest menaces are the Chinese dudes. I've seen some shit.

>>14520312
I'm not a lab guy or anything... but in my experience with tinkering and building stuff, you often find that part A and part B will do the job you need, but nobody makes them in a size/shape that will fit together. So you need an adapter. That's where lathes come in.

>>14508548
is that the autopsy photo?

>>14516617
>>We all do small scale wet chemistry in the GB
Gigabyte? Great Britain? What the fuck are you talking about you turbo autist?

>>14521216
There should be a machinist to make parts for you, more so in an opulent place like Yale

>>14516636
>This is very true. Once you get to an advanced level in chemistry, you will see most people working without gloves
That's fucking stupid. The only times people don't wear gloves in a professional setting is when you're working with more or less inert chemicals, like if you're doing an EDTA titration to get metal content. The moment acids, caustic, or things like chromates enter the picture everyone is gloved up, sometimes even with thicker gloves than usual for the really nasty stuff.

>>14508523
once a girl put 12M nitric acid in a nitration balloon instead of 0.1 M.
It fucking exploded shooting pieces of shattered glass and acid on her face.
she left university after that and still has PTSD

>>14514232
yeah for sure some form of n-BuLi or some variation of it like Hex-Li

>>14518371
>Why would an undergraduate be working alone after hours?
you serious? I was in the lab daily until 23 sometimes.
It was totally abusive but professors knew that otherwise it was impossible to finish work.

>undergrad o chem lab
>making some sulfa drug
>my reaction looks fine, shit's red, yo
>start snooping around other people's hoods
>there is a stoppered round bottom starting to bubble on a heating mantle in the hood next to me
>tell the TA
>speedwalks over to the hood, slams it shut, yanks the cord
Nothing ended up happening, but yes, some retard had left a closed system of boiling ether in a half open hood then went to the bathroom.

>>14518570
100%. You'd have to be new if you don't realize WHO bots are crawling all over this place

>>14522746
>closed system of boiling
lmao what a retard
>it was boiling ether under pressure
wtf I hope that guy never got his degree
you should be kicked out for this shit

>>14522746
one of the guys in my senior year was refluxing something with glacial acetic acid and closed a valve putting the system under pressure. luckily the valve joint just popped off but it could've been really bad.

one time I had a lab partner and he had to come in to reflux something and he turned the heating mantle up to full power. apparently one of the professors caught it glowing "Red hot" in his words and turned it off. the glass melted.

>>14511626
Bro mine was 60. It paid off, but still.

>>14508926
Lol

>>14522895
your education was sixty thousand united states dollars per year?

>>14520327
>It doesn't need to be anything particularly complicated. I don't see why it's difficult for you to comprehend why tools are useful to almost everyone.
I don't see why an undergrad would be doing something so complicated as to "need" custom parts. A graduate or doctoral candidate, sure.

>With that logic you might as well make everyone have a babysitter with them at all times because anyone at any time could have an accident, possible influences by less-than-perfect judgement.
You are being silly. Fabrication equipment is extremely dangerous. Most things you encounter day to day are not. My uni did have this policy where lab techs were required to be present when undergrads used fabrication lab equipment.

>>14511607
Truth

>>14523095
You forgot the possibility that she had been sacrificed. It was the night, she was alone, Yale Uni is where 322 SB society is based. Ya never know.

>>14520312
According to someone who knew people involved, she worked late enough that she fell asleep and fell into the lathe

>>14513638
it was boiling hot as in near 100 degrees.

>>14520440
you need to tell

>>14516569
i was referring to my pic. we have those fire extinguishers filled with antidote.

but we also have 1000L IBCs with Sodium bifluoride

>>14516414
burn degrees indicate how deep of your skin layers are "broken down" with 3rd degree needing skin grafts from other healthy skin patches on your body

dunno if someone else answered it before me, but there you have it

>>14519257
there wrong folded proteins. they can possibly fold you're proteins over to . causing a chain reactions.

>>14508926
I need to pay more attention to the text in articles.

>>14523359
Sure.
>Someone made aqua regia, placed it in a sealed vessel and stashed it in a cupboard. Aqua regia dissociates which is why you don't store it, what was made was essentially a bomb of pressurized glass, acid and chlorine gas which was about to go off.
>Someone went to a room where a liquid nitrogen dewar was stored, took some liquid nitrogen and found themselves unable to properly shut the line that the nitrogen flowed through. Instead of alerting anyone they put the line into a container and left it, with the door closed, creating a potentially lethal oxygen-deficient atmosphere for anyone who would walk in.
>Someone blasted another person in the eye with a class 4 laser when they did not mind the backreflection from their sample
>Hazardous/toxic chemicals regularly handled without much care for proper safety precautions, people spin-coating liquid cancer in a laminar flow hood (not a proper fume hood) not even wearing a lab coat or goggles, probably all surfaces are contaminated with soluble lead and nanoparticles
>Cleaning labs and sample disposal is regularly not done, these people will just leave shit where they put it down, leave equipment dirty, leave old samples of whatever ungodly shit unlabeled forever for someone else to worry about
>etc. etc.

You get the picture.

>>14523985
Oh yeah and also people storing chemicals and samples (including dangerous ones) in office cupboards, as a bonus also leaving said chemicals and samples into said cupboards when they leave the group.

>>14523985
>Cleaning labs and sample disposal is regularly not done, these people will just leave shit where they put it down, leave equipment dirty, leave old samples of whatever ungodly shit unlabeled forever for someone else to worry about
university students are bratty spoiled children, if they were adults then they wouldn't still be in school like babies with daddy paying all their bills for them.

>>14518760
>They sell pic rel in the fishing section of most sporting goods stores. Might save your tendons if you're ever stuck with hose barb glassware
Those are only cut resistant and have their limits, there are nine levels of resistance.
https://www.safeopedia.com/images/uploads/bf7b7d2e-bf0f-4521-83ab-3e97180aeb59.jpg

>>14523985
>people spin-coating liquid cancer
would you believe i worked in a cleanroom for 6 months before anyone told me photoresist is carcinogenic?

>>14522705
>n-BuLi
nBuLI isn't so bad, I've used it a fair amount. If you spill some it won't necessarily ignite instantly. tBuLi is fair more pyrophoric, it will ignite as soon as it contacts air. You can shoot it out of a syringe like a flame thrower. In general it's wise to avoid using it whenever possible and go for nBuLi or secBuLi first.
Which is why it's so astounding to me that someone was using it without even wearing PPE.

>>14524190
That's about par for the course. I found that there wasn't any real training provided for most things, technically there are safety courses but those are far too general. There weren't really any lab techs and the PIs never visited the labs or had any idea what went on in them. The labs were effectively run by students and/or postdocs who did not have proper training and in any case would not stick around for long. The only people who knew what they were doing either came in with that knowledge or independently picked it up over the years. As a result equipment was frequently misused or broken, basic safety principles were not followed and data quality was almost certainly compromised.

Departmental safety officers were notified on several occasions, by concerned users and also when bigger fuckups happened. They seemed mostly content on covering things up superficially so there would not be an external safety inspection, which almost certainly would shut down the whole group.

I found it massively demotivating to work in such an environment.

>>14509090
My old boss apparently discovered a new unknown crystalline form of the shit he was working with back in his day this way. Turned out it was metastable in normal conditions and required very fast depressurization to keep its structure. He used to tell us he saw the manometer needle doing a few spins and ran out of the lab room just in time before the vessel exploded.

>>14508999
Ditch digger spotted. Have fun at work tomorrow.

>>14523985
As a chemist with a buch of lumps in my asshole i can say it with pride that we do it just because we can

The nitrogen retard is retarded tho

>be me
>internship at a zoonotic disease lab
>supervisor is a certified boomer
>working with bats
>it's nearing the end of the day and I still have to measure body temperature of 50+ bats
>literally the last bat I'm measuring gets aggressive and bites my finger
>ask the supervisor what do I have to do
>he rants for twenty minutes straight how in his days they didn't even have gloves to wear
>tells me to fuggedaboutit
>it's been three years
It didn't even occur to me at the moment that I could get fucking rabies or some other infection

>>14508523
Some dude ran into an infrared laser at a company I work often. Can't be seen of course, but was on low setting. Slight burn on his hand. We use these things to weld steel plates, so could have been worse.

>>14517009

What were your symptoms? When did you start feeling them and when did you decide to go to the hospital?

>>14522665
A machinist is going to want/need proper CAD/blueprints to work from. If you have the machining skills it's much faster and easier to just make the part yourself.

>>14523095
>graduate or doctoral candidate
You bust your own premise here. The danger of the equipment is strictly related to improper risk mitigation. Knowing some arbitrary facts about chemicals, or whatever else, will not give a mystical experience where all mechanical work suddenly makes sense. That only comes when testicles descend.

>>14508523
My academy chemistry experience was pretty fun. Can't decide whether my favourite accident was the time I spilled a 250ml bottle of butyric acid over the floor or set my alcohol soaked desk on fire by toppling over a Bunsen burner.

>>14525097
>butyric acid spill
How long did people gag for afterwards ?

>>14525650
The room was deemed uninhabitable for the rest of the week until they got professional jannies in to deal with it. Even after that you could smell vomit in the classroom for months after. That's what they get for trying to teach me about esterification.
Since then It's been my absolute favourite chemical.

>>14525003
Likely an assload of miscellaneous paperwork as well

>>14518805

I could hardly understand this writing man

>>14523985
>>14524754
Where did you study approximately?

>>14508548
>>14508548
Interesting datum to add to this - we used to be able to use the dental lab at my school at all hours to work on wax-ups, denture teeth setting, etc but they started closing it at 9and kicking everyone out. The reason? Another pajeet woman started a wax fire with a bunsen burner and had to go to the hospital, i know because they showed us the surveillance footage.

>>14508546
>Personnel disabled pressure relief valve
Hahahahahh, oh God, what a hilariously terrible idea.

>>14523985
>Biochemistry lab decided to have a lab inventory
>Manager opens a normal cupboard and starts taking out all the bottles to inspect them
>Smells something funny and immediately feels dizzy/drowsy - manages to evacuate from lab and passes out outside
>2 fire brigades in full hazmat suits spend the next day packaging and disposing off everything in the cupboard
>The first layer of bottles were frequently used solvents/chemicals while the back had a bunch of 20 year old decomposing label-faded chemicals spilling and slowly reacting
>Happened shortly after another researcher suffocated due to a nitrogen leak
>The department was considering a week long ban on all lab activities

>>14524190
We had to use a two-part resin, powder+liquid, with the powder smelling awful and plasticy and the the liquid being clear and smell-less. Everyone told me to be careful with the powder, never get it on you hands, don't inhale it, wear a mask etc. while our desk was always covered in liquid resin spills. Decide to read the safety labels of both. Powder: might cause slight lung irritation. Liquid: Extremely toxic, dangerous to aquatic life, may cause birth defect, causes infertility, causes skin damage, can cause eyesight loss. I bet the fuckers still don't wipe the desk after using.

Oh, and there was that time someone left a beaker full of pH 2 clear liquid next to the sink. We are not allowed to use/store anything this strong, so somebody walked through the corridors past undergraduates with that in their hand.

>>14528686
The hazard labels can be misleading, because chemicals with very different actual harm potentials can have the same hazard label. Though if it says toxic then yeah probably don't splash it on everything.

>>14530658
If you're talking about picrel, yeah it's not really very informative for anything but basic combustibles and simple oxidizers. It leaves a lot to be desired from a first responder perspective and is totally insufficient for actual chemistry purposes.

>>14530725
What would be considered corrosive that isn't an acid, alkali, or oxidizer?

>>14530813
Protease enzyme maybe?

>>14524190
>mix ethidium bromide into hot agarose solution every day for my undergrad
>don't wait for it to cool a bit to save time, a bit of steam doesn't hurt
>six months before someone notices

I was making nice hot mutagen vapour and huffing it daily until I was told what it could do to me kek

Weirdly other labs in the building used gel green which is basically harmless, not sure why we kept using the fun stuff

>>14508523
Here’s my worst lab accident, happened in high school:
>Be me in chemistry class
>Doing lab
>generate NO2 gas
>”Oh cool, orange gas”
Apparently we should have done it in the fuel hood. I was fine but the girl sitting next to me was not, she inhaled all of it and had to be sent home

>>14531233
>fuel hood
fume hood

>>14531233
>she inhaled all of it and had to be sent home
I hope you got a few good gropes in

>>14531752
>sarin gassed the entire freshmen bio lab
later virgins

>>14509170

>>14531798
oy v- *sPlAT*

>>14531802
Would've been more of a slow crunch with some louder pops as the thicker bones break.

How about making a basement unusable for decades?

>be freshman at local university
>go to building for gen chem lab
>old ass building
>make a wrong turn
>walk down hallway with staircase
>basement is blocked off with Radioactive sign
>didn't even know we had a basement in this building
>get to class late
>ask my professor after class
>he said that his predecessor's predecessor incorrectly labeled and stored some radioactive shit, basement hasn't been used in 40 years
>won't be usable until 2025

>>14531802

>>14515794
>silly safety videos
Well...these "safety theories" just doesnt teach as well as real world experiments, innit?

>>14530957
There are still labs that use ethidium bromide nowadays? Why in the everliving fuck? I've never even used the stuff and only heard of it because old people keep saying "this new shit's so good thank god we don't need ethidium bromide anymore". Very common to hear stories of people who worked with that shit and wore gloves because they were smart and then they were really smart and had those same gloves on for the rest of the day using communal computers and such.

>>14531837
>That's the old passage to the basement. We don't go there anymore.
>Believe me that staircase is sealed for a reason.

>>14518799
Feelsbaldman

>>14531816
Protip for any anons caught in such a situation. Try to angle your body so that your head and upper torso are crushed first. Not only will that give you a merciful death, but it will also allow the pressure to fire your innards out your ass like human confetti cannon.

>>14519257
Depends on the prions. CWD is fine to work with, but CJD is bad if you stab it directly into your thumb.

>have internship doing materials science shit at very shady aerospace firm in college
>bunch of pajeets running the place, dont know what we actually do, just lots of money coming in
>they ask me to run little experiments and tests
>mixing various ratios of titanium powder with other shit
>they wont spend the money on an actual glove box so they get me glove bag like pic related
>you just put your stuff inside and hook it up to argon
>they keep re-using the same bag for months
>eventually gets torn and they dont tell me
>pouring superfine titanium powder from steel cylinder into steel dish
>drop cylinder and it sparks into the powder
>instantly catches on fire due to hole in bag
>try to pull hands out of bag as it rapidly engulfs itself
>hands get stuck inside, start screaming for help and waving hindenburg glove bag around
>finally sling it off, molten plastic everywhere, grab extinguisher and put out fire
>boss shows up later in the day and asks what that smell is
>sees huge burn mark on floor and melted plastic stuck to everything
>loses his shit and has a pajeet meltdown until he sees my crispy hands
>begs me not to sue and looking back i couldve made a killing

>>14508523
imagine working your ass off in school for 12 years, then doing grueling overtime in a lab serving under someone else's thumb, only to end up like this.

>>14532047
This was just shy of a decade ago. Yeah I have no idea, it was a small team who had their own little lab so they were probably just allowed to get away with whatever the boomer research lead decided

>>14531798
Fake and gay. Dude did get crushed but the rest is pure nonsense

>>14533917
That was probably posted by the anti astronomy/black hole schizo, he's a bit special

>>14511607
Because it’s not hard to create a website and old people are boring and uncreative

There is this semi-famous story in our physics department of a guy who filled an empty fire extinguisher with some gas for home use. He was waiting for the bus in the city center, when it exploded. He died, no one else was hurt. I have to listen to that story every year during the mandatory safety course.

>>14511496
$10K really isn't all that much for a department, and the responsibility in such cases doesn't lie with the undergrad but his supervisor.

>>14511607
Creativity is more important for success than advanced technical skill. Kids are typically more creative than veteran adults.

>>14532488
I don't know why my brain went to a lady walking by with a pram.

>>14532926
>working for poos
Not even once.

>>14532488
I will remember this. Thank you anon.

>>14531798
nice

>>14528686
Our chemistry department had to be evacuated because someone had stored an assload of something under the stairs. Nobody had looked at it for a decade, and it turned out to be someting which decomposes over time into an explosive. One day somebody looked under the stairs, added two and two and proceeded to shit a brick. Unfortunately the name of the compound escapes me.

>>14538516
Could be solvents that form peroxides
Or picric acid

>>14538516
>>14538569
my thinking is something like THF or diethyl ether which forms explosive peroxides over time

>>14510251
>milk was not used as the victims were lactose-intolerant

>me, like a year ago
>end of day
>wearing my goggles halfway down my nose so they wouldn't fog up from my facemask
>be changing the waste container off an HPLC
>the waste tube flicks up out of the container and onto my face
>as luck would have it, it flicked the liquid (mostly aqueous w/ mAbs) between my mask and goggles, straight into my left eye.
>eyewash, alert the safety guy, fill out a form, etc,.
>ended up having two meetings about it, forbidden from entering the lab alone (intern)
What a fucking waste of time. At this point I'm confident that low-scale accidents (i.e. those that resolve themselves w/o lasting damage after 30 minutes) are not worth reporting to anyone, despite the incessant safety propaganda spiel they give you when you start working somewhere. Also, I don't wear a mask in the lab anymore, citing this incident.

>>14530725
I think the diamond reaches a good compromise between readability and utility. Sure, it won't tell you the exact dangers of a given compound, but I can be reasonably informed about the use/storage procedures of a given chemical just by reading three numbers. For everything else, there's the SDS.

>>14538765
what was in the HPLC waste?
SDS information is notoriously vague and untrue
safety glasses are always number one. You never know when some little bti of whatever splashes in your face. There's one guy in particular at my lab who just doesn't wear safety glasses so he can wear his mask (voluntarily).
caught him using the eyewash station once. didn't report anything. I reminded him about his safety glasses and he essentially brushed it off. one day he's gonna go blind.
again, safety glasses are way more important than some bs safety theater mask

>>14538771
Thankfully it was my instrument so I knew exactly what was in the waste. I was running HIC and SEC on mAbs- so it was probably 80% water with the rest consisting of short chain alcohols, a bunch of innocuous ions (Na, Cl, ammonium, sulfate, nitrate, etc,.), and a *very* small amount of cyctotoxin-conjugated antibodies (auristatin E iirc).

>goggles
Oh right, remembered one.
I once had a glass vial with some sort of polymeric goo solution that turned out to be quite oversaturated with co2 after high pressure treatment literally explode right in my face. I was too lazy to put on goggles in that particular instance so I got a nice goo+solvent eye wash and only by some miracle not a single piece of glass. Didn't tell anyone, got eyes sting for a few minutes and that was it. I now make sure to wear goggles in the lab whenever I'm around something that can splash or is under pressure and even years after still occasionally find small shards of glass in some forgotten corners of the lab room.

>>14531798
>that insufferable kike is out on he balcony smoking weed again, lets rotate the dome and squish him. if anyone asks, we'll say we thought he was in the bathroom

>>14538765
The COVID shit was the final straw for me. I wrote a lengthy post about how our labs have actual death and injury hazards blatantly ignored, which safety officials turn a blind eye to. Then meme flu happens they get busy for the first time in their shitty lives. Everything shuts down and when we reopen most labs have a maximum occupancy of 1-2 and I'm told to eat my lunch outside in winter. There was no planning on how to actually implement these limitations and they made work basically impossible so they were ignored after a week.

Suddenly everyone is also supposed to wipe down and sanitise every surface after working. Including in the labs where the substances handled are usually so new nobody knows how toxic they are, only that they are almost certainly toxic, and the ones we know the toxicity of are liquid cancer. People were covering every surface with this type of shit and not bothering to clean up, now we're supposed to sanitise everything for a coof virus that doesn't even survive on surfaces. Again, no thoughts as to how this was going to be enforced, people were ignoring basic safety precautions for much more serious contaminants so of course they ignored this as well.

The most idiotic part was mandating masks in labs. I don't care if there is a way if done properly with the right mask and the right goggles to not gave them fog up. 99% of the time I saw people wearing them they were fogged up. So what do people do? They do what you did and take off the goggles, partially or fully. Then they spin coat their shittotoxin with their whole head in a laminar flow hood and no safety goggles. Suddenly everyone takes like a 1% chance of permanent blindness to have probably no observable reduction of catching a virus that they'll probably catch anyway and that has a 1/100000 risk of being more than a flu for them. Just because mask wearing became a signal that you're one of the good guys and they value that over any actual safety considerations.

>>14534521
>probably posted by the anti astronomy/black hole schizo, he's a bit special
>/sci/ sci has well known and recognizable schizos, like rhinoceroses or something.

>>14511602
DMSO is not that toxic.

>>14539622
t. uneducated antivaxxer redneck LARPing as a scientist on the internet


Find something better to do with your spare time that blaming all your problems in life on muh lockdowns and muh censorship and muh mask mandates. You people are like a fucking broken record. The only thing you want to talk about how all the liberals and SJWs are ruining our society. Maybe instead of blaming liberals for actually trying to do something to combat the epidemic, you should instead be angry at all the right wingers and poltards who got us into this mess in the first place by refusing to comply with lockdown orders and mask mandates back when the virus was first emerging and we still had a chance to combat it.

Anyway, take your fucking meds, schizo.

>>14539917
Go back, retard.

>>14539927
Have sex, incel.

>>14539942
Dilate

>>14539895
It's not the DMSO you need to worry about, it's whatever else it's carrying into your system

>>14511607
When you understand why the children of immigrants adopt the accents and slang of their peers in school instead of their parents, you will have your answer.

>>14522684
>12M nitric acid in a nitration balloon instead of 0.1 M

How does this even happen? Have chemists never heard of poka-yoke?

>>14522684
>nitration balloon
QRD? Never heard of this and jewgle is giving me nothing

>>14511607
>press ctrl C ctrl V
>website created
"genius" move

>>14514546
kek

>>14510196
>die painfully within an hour of rapid osteoporosis

wat

>>14511607
based and cancelled.mov

>>14516414
semantics

>>14524929
I think you were retarded before the bat bit you.
>fuggedaboutit fuggotaboutit

>>14539917
obvious shill

>>14531798
anybody have a drawing of what the balcony looked like? I can not imagine how that would be designed that badly.

>>14539917
>redneck
anti-white hate speech

>>14518828
>should not need babysitting
lab work is deadly, never do it alone

>>14508523
>plantphys
>filling up barrels with filtered water
>dumbshit BSc student (not me) misplaces overflow pipe
>soak serverroom a floor below

>>14511496
>tfw I'm learning XRF this autumn

>>14541106
Hydrofluoric acid burns through your skin directly to your bloodstream or bones, then leaches the calcium out of them. You can end up dying of calcium poisoning or your heart might stop because of a buildup of calcium-flouride in your blood. At lower concentrations the burns don't hurt at first and can take hours to start showing symptoms. At least an 8/10 on the holy fucking shit meter.

Also it can't be stored in glass nor metal because it will eventually corrode through it.

>>14542143
I thought metal forms an inert fluoride layer. (At least it does with ClF,) so what's different with HF

>>14508523
I mentioned this one before, might find it in the archives a few years ago
>Be me, a student in a lab
>Work with some slightly nasty chemicals, use a fume hood
>Work on boiling NaOH solution
>Fume hood installed by people having no idea and caring even less, everything is wrong
>Backfraft
>Inhale hot steam with NaOH
>2 months of annoying and painful dry coughing, still have burns inside of me to this day
>University not happy but I had to keep quiet

>>14524929
>some other infection
Are you based on Wuhan by chance?

>>14539622
>Suddenly everyone takes like a 1% chance of permanent blindness to have probably no observable reduction of catching a virus that they'll probably catch anyway
No one gives a shit that you'll catch it anyway. The important part is that you don't catch it on their premises and turn around and jew the institution, which naturally no one does and you are more likely to do after getting blinded on their premises.
Anyway, if you have a long manifesto addressing the safety double standards, I recommend sending it as a reply to the next email you get about an emeritus professor or someone's kid dying for maximum shock value.

>>14539622
>industry
>completely encapsulated machine
>Isocyanate and Formaldehyde and solvent are mixed together and then sprayed through a nozzle.
>VOC sensor usually at 100-150ppm.
>most don't bother with a carbon filters when entering the machine.

now i always cringe when i see ppl inside with covid masks.

>>14539968
also i noticed that quite many paint strippers contain DMSO. which is pretty stupid since this way you adsorb all the chemicals that are in the paint.

>>14541108
look at all the replies that post got, look at all of the people who bought into the psyop because they assume that if the psyop story is true, then they have a good shot at having their genius recognized.
when you're a stupid kid who is too low IQ to be able to control your emotions or think critically, psyop stories like that just overwhelm you with emotional manipulation. then you have a personal investment in believing it and you start to defend the fairy tale story as a result of your buy-in, at that the glowniggers don't even have to do their own dirty work anymore, you start to circulate their lies for them.
>i'm gonna make a website and be a billionaire like
moot, bezos, zuckerberg, marc aaronson, steve case, larry page, sergei brin, gabirel weinberg, jimbo wales. etc. all i have to do is make a website like they did
what they're unaware of, often intentionally, is that everyone on that list has a close relative who works for the federal government as a professional glownigger. for example, in the case of duckduckgo, the founder's uncle was an executive with In-Q-Tel, the CIA's privatized stock market manipulation program and the founder's daddy is a close personal associate of fauci's
https://web.archive.org/web/20190415212757/https://alsop-louie.com/team/stephen-mendel/

So the glowniggers are able to trick children into circulating the "i'm gonna be a child genius internet billionaire" rumor because the kids all buy into the "i'm not poor, i'm a temporarily embarrassed millionaire" meme.
>keep on supporting the system, if you do, i promise that wonderful things which will never materialize are in your future

>>14543517
moot is not a billionaire and did not make money with 4chan. He tried to cash in his epeen with canvas or whatever, but that failed. He was working a normal job at google at some point, don't know what he's up to now.

>>14542864
>boiling NaOH solution
Ouch

>trying to clean an absolutely coked to all fuck oil diffusion pump guts made of aluminium
>my guess is whoever used it before had a backing pump failure and then just said fuck it and walked away
>eventually had to resort to soaking some of the worst parts in rather concentrated NaOH solution
>it makes a lot of very fine gas bubles in the process
>and apparently they proceed to raise some very fine droplets of the solution in the air
>take the jug out of the fume hood and to the sink to wash the evil water off the part right away
>*hufff* *cough cough cough* oh fuck
It was nowhere near an actual burn, but still quite nasty.

>>14525971
That's the most based thing I've read all week

>>14543593
>moot
>working
at what? he has no skills.
he got fired from google because the sjws who rule google didn't want the guy who created /pol/ hanging around getting paid for doing nothing. google canceled their google+ social network because moot failed to deliver, he failed because he has no skills. 4chan was set up for him by his glownigger handlers, thats the only way a guy with no skills can have a successful website.

>>14538765
Yeah wearing masks in the lab was the dumbest shit
Labs should be pretty well ventilated anyway, and I'd rather get covid than fuck myself up cause I can't see where I'm putting a needle containing toxic solvents or reagents

>>14508523
found this one on some chemistry blog a while back

>>14544889
>google canceled their google+ social network because moot failed to deliver
was not google+ a 2008 thing that had nothing to do with moot?

>>14544889
>>>/meds/

>>14545104
Yeah my experience in a laser lab was basically pic related. Supposedly we do not have an open beam class 4 NIR laser anywhere in the university. In fact we do, and it is used by many people who do not know what they are doing.

>>14545104
LOL. There needs to be more optics/lasers content on this board.

>>14542143
my understanding is that the leeching of calcium is what stops your nerves from working and thus shuts down your nervous system

>>14545104
>nooooooo chris poole is muh heroic computer genius
>HACKERS ON STEROIDS!!!!!
google wanted to compete with zuck,
they put moot in charge of the project
????
project canceled

>>14538569
>Could be solvents that form peroxides
probably, diethyl ether is usually the most problematic and is often forgotten around

>>14539895
no but it can transport toxic molecules through your gloves and skin
it's extremely dangerous if mixed with toxins

>>14540229
it's just a round bottom flask, sorry I translated literally from italian pallone

>>14540153
>Have chemists never heard of poka-yoke
we have but university lab is usually pretty freestyle, particularly if the people working in the lab are dumb

>>14541568
>He was killed when he was crushed by the hatch leading out to the catwalk; the hatch was slammed shut on him by a ladder which extended down from the turning telescope dome. A switch on the hatch automatically shut down the dome rotation motor; however, the momentum of the dome kept it moving for a few moments, allowing it to hit the outward opening hatch. This design flaw was corrected after the accident by trimming the ladder and redesigning the hatch to slide sideways, parallel to the dome wall.

>>14548294
you realize this is not a very helpful description to somebody who has never seen the telescope in question before

>>14548453
It was just so you understand that the post you replied to was fiction (except that an astronomer died).

>>14548467
ohh right I skimmed past that the hatch was what killed him rather than the dome

>>14541599
this
the mods on this board will ban for posting n*gger, k*ke and ch*nk, but you can say absolutely anything you want about whites, who are the main demographic on 4chan
>4chan isn't a glownigger psyop

>>14548575
A nigger, a kike and a chink go into a bar.

>>14548581
And get barred?

On topic I found an old bottle of ether I had distilled from starter fluid it had grew inch long crystals.
I'm sorry to say I panicked and took it to the woods and threw it in the river sorry nature.

>>14548581
*barrista, who just so happened to be white. He was also very tight and it took them a lot of effort but it was worth it because he literally paid them for their participation in what he claimed was /sci/entific experiment.

>>14545104
Someone make the coomer meme equivalent of a laser tech

>looks at class 4 NIR lasters using a welding mask that does not even cover the sides
>lights cigs using lasters
>accidentaly set up the optics table wrong
>shot a 1kw CO2 laster right in to his balls
>UUUUHG IM GONNA LAAASE

>>14548628
Should have tried smoking it you pussy

>>14508926
Fucking cracks me up every time

>>14549316
>his light is the only coherent thing about him

>>14508523

>>14549598

>>14549316
Yeah that except
>sticks white beam cards in front of the class 4 NIR laser without wearing any goggles, marvels at the deep-red glow about 100 nm beyond what you should even be able to see
>dumps the fundamental on the back of a mirror that is on a magnetic mount and regularly removed
>never even heard of einstein coefficients, just likes the pretty lights

Synthesis of phenyl propyl amine... I had the nitroporopene in a 3L flask with reaction media consistent with an Al/hg reduction reaction. Reaction initially begins once hgno3 is added but then dies. I attempted to restart using heat and adding more mercury. This works too well, the reaction goes runaway in the space of 30s and geysers all over my mom's garage floor. Mess to clean up.

I fixed the problem by welding a custom 10L stainless jacketed stirred reactor with condenser and overflow line to 20L bucket. Never had the issue again and had great temperature control with the garden hose.

Sadly I don't have fun like that in my chem eng job anymore.

>>14549375
Lol made me chuckle

>>14508559
She cute. Sad.

>>14532177
Sounds to me like someone who’s trying to hide all the booty for himself. You should go in and loot it.

>>14516402
There's pictures somewhere of hers.

>>14551655
>custom 10L stainless jacketed stirred reactor
Pics?

not really much of an accident but
>freshman year chem lab orientation
>cute girl in front of me faints from the fumes in the lab, lands on my feet
>not fast enough to catch her
>kinda help pick her up but not really
>don't help take her outside
if only I wasn't a sperg back then

>>14515892
>wtf do they make lab coats out of that turn fatal third degree burns into a nothingburger?
Lab coats are just like scrubs. If something fucks up, dump it and get a new one. The only reason scientists don't wear scrubs is because you didn't get an expensive degree to look like someone making near minimum wage.

>>14553631
>The only reason scientists don't wear scrubs is because you didn't get an expensive degree to look like someone making near minimum wage.
lab coats make them look like Chef Boyardee or the soup nazi.

>>14553623
Yeah you could have touched her boobs

>>14532926
God that sounds awful, and probably fairly common as well. I cant even imagine the insane shit some of you chemistry interns are asked to do with barely any information provided with sub par safety equipment. Meanwhile you are meant to trust that the poo in charge or other coworkers have functioning knowledge of what's going on in the lab and their degree is totally legit guy please do not call to redeem the verification thank yous.

>>14508523
Got a few:

>be me, in high school, in chem oriented study group, we got split up during the last few years into specialties
>teacher has us put on a "play" for some lower grade kids
>involves a bunch of demonstrations
>since i was the only dude there, got assigned the fire related one
>involved me preparing weird green oil, dripping ethanol on it, and setting some papers and sticks on fire for a makeshift campfire
>rehearsal goes fine, but on the real deal nearly burn my face off
Later find out i was dealing with Mn2O7 in extremely large quantities, was pretty cash in retrospect

>first year uni, we're doing inorganics
>have to oxidize some shit with 30% hydrogen peroxide in retarded soviet-era test tubes
>for some reason prof tells us to heat the mixture up
>what do you know, starts boiling over
>majority of the group leaves with chemical burns

>same class, gay dude makes bromine, nearly fucks up the fume hood, gets yelled at

>visit the ochem floor, meet a peculiar lab tech
>looks like a run-of-the-mill faggot, dyed hair and everything
>his voice sounds funny, much like a semi-passable tranny
>turns out he accidentally chugged a glass full of nitric acid
>vocal cords fucked for life

>ochem again
>lab partner tasked with disposing of some leftover conc hcl
>dumps it straight in the sink
>inhales all the vapors
>nosebled, coughed up blood for a week

>>14508523
once I connected the two poles of a 220 V power socket with one of those short circuit adapters found in basic physics labs meant for use in instructional circuit boards (see picrel). I don't know why I did that, my mind was kinda astray and distracted, and I just saw this nice shape that fitted there in the socket and plugged it. Immediately some sparks and noises came out of the socket. My professor came immediately and unplugged it somehow without being electrocuted. Then he slapped my head and asked why did I do such a thing.

>>14556011
>unplugged it somehow without being electrocuted

For the same reason why you weren't electrocuted. Are you special?

>>14553623
>if only I wasn't a sperg back then
What? Please elaborate. Would you have kissed her hand and given her a smooth "m'lady"? Would you have offered her all of the eggs?

>>14556031
At last, I finally see why the term "toastie" gained prominence in our community.

>>14556052
>misspell "roastie"
I had one fucking job, KMN.

>>14549611
>2.5 L
>obvious peroxides
>let's leave this unlabeled and unattended for weeks
>let's dispose of it in a bog

based retards

>>14556052
>03:03
>>14556057
>04:04

hehue, I got to see your mistake. Your timing is impeccable

>>14555649
>gay dude with bromine
Are you from the baltics by any chance, ive heard about that one.

>>14549598
>kraut downing an azide tablet that was formed in an explosion
>survives
Based krauts, interwar germany was fucking wild

>>14508934
Did this in a high school chem lab. Teacher set up a titration lab and we were slowly neutralizing an acid when the stopper fell out of the burette and caused the basic chemical to splash and get on me. Not very interesting, though.

In college during a power lab we were providing voltage from an auto transformer to a bunch of light bulbs on a big panel on the wall. I was in charge of setting the voltage, I had a partner selecting which bulbs to allow to be on, and another partner collecting data and telling me and our other partner what to do. He misread the lab manual and told me to set the transformer to 120V. When the lightbulbs turned on, they were very bright, and just as my partner turned around to ask "Hey, do these look a bit brighter tham before?" one of the bulbs exploded.

Had been locked out of the EE lab for a week once because out instructor couldn't find the keys. The time was pressing so finally she sent some guys to break the door and right the exact moment they returned to report the success she discovered the keys were being used as a bookmark in her note book she had on her table right in front of her all along.

>>14555649
>>turns out he accidentally chugged a glass full of nitric acid
What?
How?

>>14556024
Do you have to ask?
>>14556011
Not lab related but I did something similar
As a 6yo
Turns out some sizes of paperclips fit perfectly onto European style plugs shorting them out when you try to plug them in

>>14508559
Damn she was cute. Imagining her getting mutilated like that is genuinely unnerving

>>14545104
At least that dude could still see. If you looked into the lasers of the laserpeople in our department, you'd be blind in 20 femtoseconds.

>>14526358
Prions already got him

>>14549598
>distill at max 100°C
>duck immediately
lol

>>14556348
nah, i'm Russian
>>14556868
dunno, maybe he brought his own drink and mixed up the glasses

>>14557425
>Nitric acid in a fucking glass
>Anywhere near drinking water
???????
>Russia
Ah, it makes sense now

>>14556985
>Imagining her getting mutilated like that is genuinely unnerving
imagine discovering the body

>>14559069
I am imagining it. Do you think anyone will show up in the next ten minutes or so?

>>14508523
I peed myself once in high school in AP chem. I really had to go and I was going to but class was ending and I was cleaning up and I went to wash my hands in the sink and I splashed some warm water on my pants.
It just kept getting warmer and warmer until I realized it wasn't just water staining my pants. I don't think anyone noticed but so I went to the bathroom since school was about to end and cried for several minutes.

>>14518371
>Why would an undergraduate be working alone after hours?

>>14508523
my uni only had suicides unfortunately

>>14559122
>did a pp
>nobody noticed
>win
I'm guessing you're female, because no male would care. Plenty of us have had the sharts from bad cafeteria food, which is a LOT worse.

>>14559122
Anon, please. We're chemists. It's called an in vivo urea extraction and it counts as lab credit.

>>14512437
Kek.

>>14532047
Ethidium bromide really isn't that bad. It has never even been proven to be mutagenic in animals.

>>14559293
Discussion on it btw: https://www.science.org/content/blog-post/myth-ethidium-bromide

>>14516402
>turned out
*crickets*
>>14552277
who cares if someone is cute?

>>14508654
Should've just thrown some baby powder in and let it run for like 10 minutes.
That or just put some tape on the nozzle and let it sit for a few days.

Good thread lads

rip in piss