What's the worst you've ever fucked up, /sci/?
I just guillotined 6 of the wrong rats because of shitty handwriting
>tfw you have horrifically bad lab skills
Like I fuck up even the most basic of things.
The first time I was doing cyclic voltammetry, I had my shit stirring for half an hour while it was running before my prof told me CV is supposed to be using diffusion-controlled redox peaks.
That's the worst I can remember, which isn't really so bad.
>>7925900
what the fuck is that?
>>7925900
accidentally sucked my lab partner's dick, it was really embarrassing
>>7925900
While doing ELISA test on VIH patients I stung myself on my finger. Luckily I got negative por the test myself.
>>7925955
Feminist vagina
Nothing too serious. Once I was running the overburden porosimeter (similar to pic related but about 5 times bigger) and it has 2 pressure gauges on it, one to 2,000 PSI and the other to 10,000 for samples that need higher pressures.
The dial to switch from one pressure guage to the other is right beside the dial to wind down the pressure. I accidently grabbed the wrong one, with about 8,000 PSI in the chamber, and switched it from the 10,000 to the 2,000 gauge.
It sounded like a train whistle for a moment and the smaller gauge stopped moving. Cost about $500 to replace.
>>7925959
What was an engineer doing in the lab?
>>7925999
Actual work.
And getting his dick sucked.
>>7925955
MADNESS MADE FLESH
I went to work, was told by a competent co-worker to transfer x amount of material from tank 1 and tank 3 into tank 2. He implied and I assumed tank 2 was empty.
So I started the pump, opened the valves and knowing it would be a while and being complacent and bored, I stepped out for a smoke.
Tank two was not empty.
So I ended up spilling several thousand dollars of mildly toxic chemicals into the sump and I got fired.
Spilled citric acid fucking everywhere.
Got some in a paper cut.
It stung.
>>7925955
Google Images suggests that it's a turtle's esophagus.
But I've no idea, really.
>>7925955
the disembodied esophagus of a loggerhead turtle
>>7925900
Aww, rats!
>>7925955
Divine retribution for the sins of mankind
>>7925955
the alien from 10 Cloverfield Lane
>>7925968
Carried some acetic acid through the lab open and used it outside the hood.
>>7925900
I shorted a small capacitor once
sparks and stuff
nothing serious
Got crystal violet gram stain on my hands for a month
Can't remember anything particularly bad in the past decade or so but my memory's terrible.
But in a high school practical exam I managed to knock over and smash my apparatus just after setting everything up. Had to start from scratch and didn't finish in time. I would blame my B grade on that but I also missed every friday class. My fault for being a lazy cunt.
>>7925900
>accidently made hydrogen cyanide gas.
survived it.
>added NaOH to acidic solution of sodiumdichomate in an erlenmeyer flask to create boiling cancer vulkano
survived it
>>7925900
Faulty safety measures I was responsible for lead to one of my guys becoming psychologically dependent on solvent abuse
>>7925900
i used normal water instead of distilled water and i now the lab lab beakers have a lot of salt and shit stuck on them
the creepy old lab man looked like he was gonna kill me and my other qt class mate
Not mine, but in high school biology, dissecting sharks, the teacher showed that the eyeballs bounce like superballs.
A dumbass fastballed one across the room, into a glassware cabinet.
It managed to go through the window and break the shelf, causing a glassplosion that showered three kids.
I ended up with a lacerated cornea and scars in my scalp.
>doing some stuff on the breadboard
>circuit doesn't seem to work
>I try figuring out why the fuck it doesn't, test every possible bit combination in my truth table
>spend an hour in despair and active swearing
>I later realize my truth table had errors and the circuit was right all along
>>7927198
i've got something like this
>spend about 2 hours assembling something
>no pre-drawn schematics or anything
>just testing an idea i thought of while watching netflix
>eventually get around to powering it up and testing it
>it works perfectly the first time and does exactly what i wanted it to
>spend another 4 hours trying to find the problem
>>7925900
>Troubleshooting "broken" voltmeter, with no gauge lights.
>Lab partner leaved cover off of voltmeter.
>Probe voltmeter electronics and get shocked the fuck out of... all the way to the heart muscle.
>Almost die.
>Turns out my lab partner left the voltmeter plugged in with the cover off, and the problem was really just a burned out gauge bulb.
>>7927236
Oh god, that sick feeling when you build something and it works flawlessly the first time.
Electronics, coding, or mechanics, if it's a novel construction it's not supposed to work the first time. Just leaves me with a sense of forboding until it finally breaks.
At least there's always optimization.
moved a box of human limbs from a freezer to the fridge to thaw over the weekend (for orthopedics disections/training)
fridge door must have popped open over the weekend
come back monday to a mix of blood and formaldehyde all over the floor and squishy arms and legs all over the floor
the resident didnt want to deal with the EHS paperwork so we just cleaned it up with paper towels and went on with out lives
>>7927002
Kek
Mixed bleach and NH3 together... Not that bad just got smoky a little. The smell was not bad either.
>>7925900
Oh! So this is what fleshlight companies based their designs off of!
>>7927755
hah I have something like that
>Person gets leg amputation
>Lab wants sample of leg
>Lab gets entire leg
>Lab doesn't store leg in proper freezer before disposal
I used a high pressure blast of DI water to rinse out a graduated cylinder that had been used for concentrated sulfuric acid. Gave me an unpleasant feeling in my throat/sinuses and had me reading MSDS sheets and freaking out for the rest of the day. I never told my boss. Fuck those little conical spouts, honestly, they are like goddamn firehoses.
Also I used some spectrophotometric grade methanol for paper chromatography because I couldn't find the regular stuff. Boss was pretty annoyed.
I'm only a sophomore in college. I'm still waiting for that first really big fuck-up.
When I was about 14, I was seeing if there were any dissolved impurities in some methanol I had.
I let 100ml evaporate in my bedroom as I slept for night
>>7928071
I dont see the problem?
I'm really not a safe person, the other week I spilled 100ml DCM and just left it to evaporate, as a kid I used to play with fire, burning lithium and various mixtures causing myself small burns every now and again, I survived a shock from a microwave transformer (never ever playing with electricity again, very luck to live through that). I once made manganese heptoxide and it exploded covering me with manganese dioxide leopard spots. I also made sulphur trioxide via the dehydration of sodium persulphate, didn't realise ozone is given off first filled bedroom with ozone, ran off and closed the door for a bit coughing. Same thing happened with HCL from a friedel crafts. I can't think of any major fuck up I've done recently though since I stopped chemistry at home and pursued it as a profession, although last year one of my lab partners spilledan entire bottle of bromine in a time cupboard, filled with brown gas and started coming out, it was quite funny watching people panic, I'm much safer than i used to be which is good because I am working with quite toxic chemicals nowadays (e.g boron trifluoride)
>>7928092
potential harm from inhalation, especially since I was so young
>>7928104
>time cupboard
What.
Broke an empty dewar.
It was taken from a lab that had recently left so it was k.
>>7928137
Fume cupboard
>>7928104
>spill bromine in time cupboard
>bromine vanishes
>???, whatever, go back to work
>Ug and Thok poisoned by bromine in 7000 BC
>making one of these for engineering project
>Use a nice husqvarna lawnmower engine
>Its working like a champ
>Couple of the guys I'm working with say they hear a terrible noise
>one of the guys who built the reactor turned the air mixer too high and didn't install the intake tube correctly
>tube is made of clear plastic so the professor can observe the fuel mix in real time
>The rod suddenly shoots out and hits me in the leg
>I fall right onto the reactor
>Engine stalls and half of it is broken
>in 24 hours everything was operational again except my right calf muscle
>>7928117
whoa, we gotta badass over here
Spilled pyridine all over my lab coat, which was open so my t-shirt too. You don't just smell this stuff, you taste it. Damn sep funnel had the wrong size stopcock in it. I didn't do THAT though.
>>7927180
I hope you sued the shit out of him.
>>7928183
[laughing crying emoji][laughing crying emoji][laughing crying emoji][laughing crying emoji]
>>7927198
>spend a solid half hour testing and rechecking every part of the circuit, because it's not operating how it should
>check my boolean algebra over and over, 100% sure by this point it's right
>turns out one of the IC's was not the one I though it was, due to shitty faded label
>I'd been trying to use a nor as a nand
Not a catastrophic failure by any means, but felt like a complete retard.
>>7925900
>Be me
>17 years old
>testing an AC/DC converter with a oscilloscope with classmates in the laboratory
>Checking if the DC was almost constant
>It wasn't constant.
>Decided for some reason check the diode bridge instead of the capacitive filter.
>put probes in diode
>big spark from the probes
>oh shit™
>turn off and on the oscilloscope, didn't werk™
>changed the probes, didn't werk™
>flipped the bird, didn't werk™
>waited to my classmates ask some shit to the teacher and swap the oscilloscopes, he was checking his capacitive filter , nobody noticed
>he had to pay the oscilloscopes and also failed the class
>he left the university 2 years ago.
I accidentally made a car bomb and sold it terrorists.
Well one of my fellow students dared me to dip my balls in the sonicator whilst it was on, so I get up on the desk and start crouching over it with my balls out when a PhD student walks in, makes eye contact and walks straight out. Luckily he is a bit of an autist so he didn't report me or anything. Didn't dip my balls in ultimately.
Wonder how my balls would be if I did
It was late in the evening, I'm the only one who was still in the lab because I need to fix something. At that point, the school campus is quite quiet, you barely see anyone moving around except for some stupid couples decided to make out in some dark places.
Anyway, I suddenly felt an intense urge to masturbate so I started to move to the inner room of the lab so that people can't see me do what I did even if they entered the lab. I turned off all of the lights in the lab and browse my favorite porn on my laptop. The only light that is on is from my laptop screen. Then I started to fap furiously.
Then suddenly there was someone opened the outer door of the lab. I was like shit shit fuck fuck. I got panic as the person started to move toward the inner room, where I was fapping. I didn't know what to do so I moved the chair to the other end of the room, with my back against the door so as least that person won't see my unzipped dick.
Then I heard the door opened.
"Anon? you are still here?"
It was my female colleague.
"Y-Yeah". My back is still against her.
"What are you doing at this hour?"
She moved on and see my laptop screen. Shit, I forgot to close the porn.
I finished zipping my pants but when I turn around, she didn't even look at me, I can see that she feel very awkward. Then she proceeded to grab something and move outside and left.
She never told the prof but things have been awkward between me and her now. We barely talk in the lab.
Not that horrible, but still a pain in the ass.
> helping other honours student with lab duties
> doing an extract and purification of TEV for the whole lab
> running it through column
> buddy tells me to watch over it while he does some shit
> "don't get any air in it"
> beaker is full of cell extract
> it'll be fine
> go off to listen to music
> check on it after a while
> running air through the column for ages
> whole column fucked
> whole extraction fucked
this isn't awful, just mind-numbingly stupid.
my advisor's lab contains a small lab oven that I use for drying specimens. it has a big light-up power switch on it, along with a temperature selector dial.
some undergrads in an oceanography class were using it to dry out brine samples. when they were done, for some inexplicable reason they turned the temperature knob all the way down instead of actually switching the oven off. just a little bit confused by their actions...
>>7930244
you, sir, are a retard.
>>7930890
and so are you
Confused calcium chloride for calcium citrate.
Took me a few minutes to figure it out, then I just cleaned up and went home for the day to think real hard about my life.
>>7930225
a classic. happened to me a few times when i was still experimenting at home.
I trumped all of your failures.
>buy 5000 dollar recombinant cell line
>attempt centrifuge purification
>proceed to dump supernatant
>accidentally dumps 5000 dollar pellet into 95% EtOH and concentrated bleach
:^)
there was that one time i spilt dichromate and silver nitrate on my hand... needless to say that was a fuck up
>>7927112
What? Lets hear about it
>>7925900
I created a wormhole and ended up in Australia. Ughh, worst time of my life.
>>7925900
>in chem class
>idiots squirt bottle of water on each other
>change water with acetone for next class
In chem lab. We are using ether for something or another."Don't inhale the fumes guys, it'll get you really high"
>Reeeaaaally?
>mfw we need to use ether for other experiments the rest of the semester
>>7926826
The absolute mad man
>>7927002
Story on the cyanide?
dropped some 1.0 M NaOH on my right index finger in grade 12 biology and its been scaly ever since. I'm like a reptile.
>>7933562
also stuck a screwdriver in an outlet cus i wanted to kill a bedbug (the metal near the handle was literally melted a bit. actually would've gotten 3rd degree burns (and probably nerve damage).
how am i still alive, wtf.
here's one from highschool, the glory days
>lab is to make an electrolytic cell to make ozone
>pretty basic, water and nitric acid for the electrolyte
>ez
>accidentally use HCl instead of HNO3
>ozone is an oxidizing agent with a distinct odor
>we test our effectiveness by smelling the gas evolved, and also bubbling it through a sample of beet juice which will become colorless as the ozone oxidizes the pigment
>so we flip the switch on and we were sniffing really hard to see if we could smell it as it was supposedly a subtle odor
>it wasn't
>think whatever
>bubble through the beet juice
>extremely effective
>wondering why ours is so much better than everyone elses
>do you remember the part where i put in the wrong acid?
>i didn't
>chloride has a higher reduction potential than water
>literally just snorting chlorine gas for an hour thinking we're the shit
nothing happened to us
>>7933562
>1M NaOH
wow it's fucking nothing
no wonder you idiots stick to math and physics
>>7925900
I fucked myself is actually what happened. I was just getting into research. My professor gave me 3 books, and a list of chapters from each to learn over the summer. I didn't even glance at those books until the beginning of the school year.
I show up fall semester, and lie saying I know them. He says that's good because he scheduled me to give a presentation on them to all the relevant people in the math department in a couple weeks.
I probably spent 12+ hours a day learning that shit, and making a presentation over the next 2.5 weeks, but I fucking got it done.
I learned some hard lessons from that fuck up.
>>7929103
cunt
>>7933562
I accidentally poured 6M NaOH on my hand, I washed it off pretty fast tho.
I also dropped H2SO4 (75%) and 6M HCl on my bare hands while performing qualitative analisys back in uni.
But the worst... the worst, my fellow scientists, is AgNO3... that fucker stained my hand and I couldn't get it off in any way for about two weeks.
I survived all of this.
>>7928186
What the fuck is that thing you guys built? Some sort of motorized bong?
I once made hydrazine
>>7935873
Solid plan.
>>7925900
Never do lab work while sleep deprived.
Simple mistake adding water to base but holy hell did 200g sputter over every god damned surface.
>>7928224
Found the amerilard
I wrote down a thin section number wrong once. Ended up drawing garnet-mica schist instead of marble. Absolute tragedy, I wasted 20 entire minutes. The drawing was shit anyway.
I did get a rather sexy photo of the marble I was supposed to draw (forsterite-diposide marble), pic related
>>7926826
I once spilled some of that on my potato chips I was eating in lab and continued eating them anyway.
>>7927198
What major lets you do this? CE or EE?
>>7926837
Just wash it off with acetone next time you idiot
>>7925900
I accidentally some NO2. needless to say, I was not working under a hood. needless to say, the lab was crammed full of students
>>7936902
Did you need to say that?
>>7933810
>master degree math student
>final year
>decided to take 3 physics courses because only a few master level math courses actually looked interesting
>the university advised me against taking them because I had 0 prerequisites
>never taken a single physics module
>QFT, QM 4 (of 4), GR
>went to 0 QM, 2 GR and 1 QFT lecture during whole year
>left revision to last week
get on my panic level
>>7928104
> boron trifluoride
NOPE
also, storytime. do you make rocket fuels?
>>7936910
it is not really fun to wait for kids to drop dead from pulmonary edema, I'll tell you what
>>7936912
Shiiiitson, how did it turn out in the end?
>>7936947
bretty bad. The most I went to a lecture was less than half of all analysis lectures. Wasted four years kek
>>7936869
Probably both. I'm into CE
>>7926185
desu deserved for not first checking if the tank was empty out of simple interest:
>I wonder if the empty tank is shiny
>>7929103
I found Richard Goodman
>>7933327
ha. selling?
>>7935741
that's a terrible idea. Don't even try to profit off it.
because it's my idea now, punk.
>noticed pants were tore up day after laundry day
>i thought it was from my bicycle's cassette or something
>notice slight "bleaching" around the tears
>pretty sure they were from chemical spills
>remember i was diluting 18M sulfuric acid
whew i'm thankful for a proper dresscode.
>>7935873
I see what you slipped in there...
>>7929103
You are an asshole.
>>7937515
I wish 4chan had a drug board desu senpai desu
Paleontologist here.
I once dropped a fossilized dinosaur egg in the lab while I was alone. I big cracked formed along the side of it, but luckily it blended in well with the rest of the fossils (many of which were already cracked). So I just put it back and never said anything.
>>7937491
I'm in math and CS at the moment. How hard is CE? Right now CS is ridiculously easy and watered down.
For reference, in math I'm in abstract algebra and PDEs. In CS I'm in Data Structures and Algorithms.
Once farted into a beaker of bromine and the methane reacted with it to produce HB gas.
Lab had to be evacuated for the rest of the day.
>>7937555
I call bullshit. nice trips tho
sincerely,
a paleontologist
>experimenting with a chunk of plutonium
>building a neutron reflector
>i accidentally a tungsten brick
>fucking radiation, everywhere
Embarassing
>>7925959
Engineers have labs?
>>7936068
I do enjoy looking at higher order interference colours, Calcite is rather pretty under the microscope.
>CE sophomore
should I sign up for a Physics minor.
>>7937876
I feel you man
>boss tells me to add uranyl nitrate by hand because machine not working
>fuck up
>get rads
>>7938291
Calcite's a bit of a weird one, it has a tendency to look lovely at one level of magnification but then look boring and shit once you switch lens
But yeah, interference colours are sexy as fuck, pic related is a noice one I took a few weeks ago
>>7927526
I have this in coding sometimes.
>>7926174
>>7925900
>at university doing biochemistry
>practical using live e.coli
>lab partner spills e.coli onmy lab book (with all results from practicals I've done) and his own
>everything contaminated was autoclaved
I don't have any good lab stories, but I've heard one. Idiot kid was trying to show off in uni lab once and accidentally chugged some highly concentrated HCL by switching the flask of water with the flask of HCL when his lab partner wasn't looking. Little did he know, his lab partner had a misunderstanding and rather than filling the flask with water they both filled their flasks with the HCL, each thinking the other was getting the water. The kid that drank the HCL now has no tongue and has a reconstructed esophagus.
>>7925900
Was messing about in the lab on my own and saw that one of our formalised liver fluke samples was dry, since the formalin had evaporated. Without thinking I grabbed the pot and, with my face about 6 inches directly over it, I unscrewed it.
tfw I got a face full of formalin vapour. I thought I had blinded myself so I ran into the bathroom and splashed water in the eyes untill they stopped stinging. No damage was done.
happened today actually
>med student
>looking at preserved human brain before anatomy exam
>just discovered cysts on my chest area the week before, doctor prescribes medicine that produces nausea
>puke because of lingering medication nausea intensified by the smell of the preservation chemicals
>mfw classmates make fun of me and look at me like a weakling
>>7939357
Also a two years ago when taking chemistry, accidentally got highly concentrated HCL on my fingertips and they were stinging for two days straight.
>try to replicate Kerplunk experiment
>one of the mice has that get away from the cops speed
>name him Gonzales
>initiate Kerplunk part
>Gonzales' turn
>Gonzales rams the wall
>"squick!"
>mfw he broke his neck
>mfw had to clean the mess in the maze
>mfw animal activists in the ethics board want my head
>freshman year zoology lab
>dissecting tapeworms
>halfway through dissecting, lab partner pinches finger on objective lens of microscope
>sticks finger in mouth without thinking
>gets massive tapeworm infection
>mfw she blamed me for not stopping her
>>7927900
top kek anon
>>7939502
>lab partner pinches finger on objective lens of microscope
>sticks finger in mouth without thinking
>gets massive tapeworm infection
What was she expecting to happen?
>>7937050
that's a first
in uk, or at least a 2.1
>>7933768
was probably more then. it obviously wasn't weak since it caused permanent damage to the skin lolz
>>7939277
What in the mother fuck
>using TEM
>very experienced user, days of time using this scope
>go to remove the CCD fluorescent screen out of the beam path so that I can use the viewport screen to rapidly pick a different position on the grid
>think I hear the click of the camera screen disengage when I flip the switch
>don't see anything on the viewport screen, which is normal because the e-beam is not as intense when you use the CCD because of how sensitive it is
>go turn the intensity knob to focus the beam so I can see something in the viewport
>still don't see anything
>okay, this happens if the beam is off center
>decrease magnification
>still don't see anything
>fiddle with intensity knob some more, still don't see shit, can't figure out what's wrong
>realize that the camera fluorescent screen never disengaged, FUCK
>actually disengage the screen
>reduce intensity, put screen back in, acquire an image
>I turned the intensity up way too high and burned an image of my grid into the fluorescent screen for the CCD
I have never fucked up an instrument like this before and I'm almost done with my PhD.
I don't know if the screen didn't disengage because I didn't flip the switch or because of some instrument fault.
Luckily the photobleaching was weak enough that it could easily be background subtracted away (along with the burn mark from some retard pressing the diffraction button with the screen in too).
I felt terrible and like a complete dumbass though. Facility director said he was surprised I could burn the screen like that in such a short time. Of all the instruments to fuck up, I pick one of the most expensive ones.
Pic related, my face when.
>>7926185
Never hire smokers.
>>7927900
"They gave us the whole leg!"
"THEY GAVE US THE WHOLE FUCKING LEG!"
>>7930870
Why is everyone ignoring this story? Holy shit you fucked up hilariously.
>>7926826
Got a few drops of that on my face. Stings but no big deal.
>>7940501
>no green text
>shit format regardless
>things that didn't happen
come to mind.
>>7937845
>>7937050
whats those scibbles mean? you failed those classes?
>>7941000
nah that's the water mark. Fail is like 40 or 35 I think.
>>7925968
>>7930870
underrated post
Throughout highschool and college, I had no idea how (and still don't know how) to tie a bow behind my back, so my lab aprons would never be very secure.
Once I tied it in a knot, and the teacher had to untie it for me, it was really embarrassing.
I pumped loads of ethyne gas out onto the street once cause the fume cupboard was to far away. Teacher wasnt happy lol
>>7930870
Have fun speaking to your lab's ombudsman, m80. Although it might not seem this way to you, she is entirely within her rights to file a sexual harassment case.
I say this as someone who had a similar issue after fucking a girl in a collaborator's lab (for shit's sake, never make this rookie move as a doctoral student). I did far less than you did (she was a butthurt roastie) and still had some mild punitive measures taken against me.
Thankfully, my PI is well-funded. Her's isn't. Funny how things happen to work out for you sometimes. Kek.
>>7941216
fucking saved. Well meme'd anon
>>7932998
how the fuck did you manage that
>>7938574
Engineers are gay.
And it's true!
>>7939502
>Pinch finger
>Put in mouth
It's her fault for shitty instincts
>stenchroom
>drop bottle of h2s
>everyone has to stop their analysis for hours because nobody is allowed in the stenchroom for some hours
>everyone has to stay late because these experiments have to be done today
>everyone except me
>mfw i smuggled my h2s before shit hit the fan so i could walk home 4 hours earlier
>>7925900
>doing lab work
literally more plebeian than being an engineer
>>7937495
Well it like "Hey brodwg dude guy! We're in a rush we need 5000 gallon of y intermediate reagant for a big order of x final product chemical! You can use tank 1 and 3, tank two should be empty from the NC binder order last night, so use that."
>>7939806
I quit smoking after that anyways because I got pregnant for unrelated reasons.
>>7925900
When it came time for my chem lab final, my notes were so shitty that I couldn't read them and it cost me my A in the course.
>>7941368
But wasn't it consensual?
>>7933327
I wonder how many people are majoring in Chemistry after watching Breaking Bad.
I used to fuck around in my dads shed when he abused me
>Put rusty locks in hydrochloric acid
>Used linseed oil as lube to jerk off
>Tried to dissolve my chemistry teachers underwear in Hydrochloric acid
>threw a bottle of hydrochloric acid and aluminum foil into his shed
>mixed petrol with steel wool, copper dust from some fungicide or whatever, weed killer and other shit to make pretty colours
>Tie 100's of sparklers together and pour some other powders and shit to see what happens
>Used to use some acids to melt concrete when I was bored, I was like 10
>Tried spray painting and it got all up in my nose I sneezed paint
I don't know
>>7925900
Thank you for being brave and sharing /sci/ it makes me feel less of a retard
The worst thing I done so far was careless of use of a polarizer with a laser. I was not keeping track of the reflection and I sent it everywhere before getting yelled at
>2nd year of university.
>early morning chem lab
>tired as fuck
>Needed 250ml of ethanol
>someone asks time
>turn writs and the ethanol all over myself
>smell like a rhummy all day
>physics honors lab
>gotta do some old experiments
>Decide to do hall effect
>coils are water cooled
>Set everything up and place the sample between the coils
>Turn on water and power
>10 seconds later external tubing comes off
>Water soaking everything including me
>high current moderate voltage
>fry the current generator and field generator
>almost fried myself
>got lucky because because the lab admin was the one who fucked up the fitting
>didn't have to pay for shit
>>7925959
accidentally?
I accidentally some HF on my
>>7927900
>he said "get a fingerprint!"
>and I hear "get a finger tip!"
>>7941247
>I pumped loads of ethyne gas out onto the street once cause the fume cupboard was to far away.
>ethyne gas
as in, also known as fucking ACETYLENE? shit anon, you're lucky you didn't get expelled.
>>7941990
Not really that bad of a situation (without knowing the specifics), if you were to vent it into a hood it would just get blown out from the roof instead.
>>7941923
>Tried to dissolve my chemistry teachers underwear in Hydrochloric acid
I'll bite. how'd you get your grubby little panty-raiding mitts on your teacher's underpants anyway?
>>7941996
I lived in a small country town
An older student had her home address on a scholarship application a few years ago, the only part I remembered was 'Railway street'
About 4 years after that I was jerking off to thoughts of her because she always wore tight jeans to class and decided to look up her address on white pages (Australian phone book online)
Anyway, I found her address, drove across town, parked down the street walked up with no shoes on, checked for motion lights, crept upto her clothes line and snatched everything from undies, bras and dresses.
Then next week in class the teacher said she had to go to the city to buy Tennis balls, but she gave up and said to the class her clothes were stolen and she needed new ones.
I felt bad, the kid they blamed was a pretty cool guy and they made jokes about him wearing the underwear. (I never wore them to school, that's retarded)
heh, I spent months jerking into them.
>>7941226
Pull the neck part over your head, then tie it in the front by rotating the apron...
You must not be an engineer if u can't think of simple fixes like that
>in anatomy & physiology lab
>intercourse day
>TA chooses my lab parter and I for a quick demonstration
>strip in front of the class
>he last no more than 5 seconds before cumming inside my pussy
>entire class laughs at us
worst day of my life desu
>>7939502
Why didn't the dumb bitch just get some praziquantel? If she'd taken it right after the little shits would've been dead before they could even do anything ot her.
I ended up bleaching a part of my hair for about half a year due to touching my scalp when adjusting my goggles when messing with some metal salts. Managed to figure out the best minimal media for that bacteria, though. Worth it.
>>7941687
>unrelated reasons
Pretty sure it was because someone dumped chemicals in your number one tank.
>>7941981
>Ethanol evaporates nearly instantly
It doesn't. Besides, he probably didn't have pure ethanol.
>>7942456
If he didn't have 'pure' ethanol then he was working at the shittiest uni on the planet.
At my university it's impossible to buy ethanol at grades lower than 200 proof, 100.0% purity because I guess it's just that easy to refine. You can get a gallon for like $9 too.
>Doing independent study yesterday with orgo professor
>Teaching me column chromatography with silica gel and sand while purifying our sample
>She was telling me how one of her grad school colleagues forgot to open the stopcock before turning on the N2 gas and had the fume hood open
>Column blew up from pressure and covered herself in silica gel
>Keep running the column and turning off the gas to refill the solvent
>After nearly 2 hours, we've nearly got the whole sample out, open the fume hood and accidentally turn the gas valve open rather than close
>mfw history almost repeated itself
I managed to quickly close the valve but when I heard the hiss of increasing gas pressure I was spooked
>>7941981
>Ethanol evaporates nearly instantly and doesn't leave behind any odor,
Nigger, you are confusing diethyl ether with ethanol.
>>7942691
It's like telling people mistakes while working makes someone subconsciously do the mistake.
>>7939786
Crashed TEM first time I used it by pulling sample rod out while under vacuum. Apparently happened to a lot of people before me so my shame was minimized somewhat.
>>7942659
>100% pure ethanol
Uh, no
>>7942916
>implying the data sheet is a lie
Uh, no
>>7942765
I work with pure ethanol in the lab every day, that shit evaporates fast as hell and leaves no trace, don't try to tell me about ether.
>>7942843
How did you even do that? There's a lock position on the sample port on our scope that makes it impossible to just pull the sample out without an intermediate valve equalizing the pressure with the room first.
>>7926194
I love that shit
I have it in my kitchen
Accidentally spilled some brain matter on the floor, causing my teacher to slip and break her hip.
>Wearing expensive cowboy boots in the lab because I'm a goon
>Spill a drop of sulfuric acid
>Don't think it got on me, continue with my business
>later that day notice a hole melted in my boot
Someone shoved a dead squirrel into sample loading part of the desktop SEM at my school right before spring break and when we came back it was all rancid
>>7942040
I'm a physics major, you dick.
>>7941491
>>7936918
Nah, one of my mates is working on a project involving CH activation
This one time I accidentally wrote a "+" instead of a sign for "union" in a math proof.
K so maybe in math my fuckups aren't as interesting but still.
>>793784>>7939277
Hcl isn't that reactive
>>7943754
It is annoying to deal with at concentrations >32% though.
My right hand is fucked up, so I've probably broken well over a thousand dollars in glassware. No one cares, but man...I still feel like a monster. I'm on the border of being abnormally tall, so it tends to get blamed on that. But yeah...that's a nice volumetric flask be a shame if something happened to it.
>>7943759
Literally you can put 37% on your skin for at least 20 secs before it starts to tingle, if he drank some it would be serious but he'd have time to drink some basic solution and save his stomach/aesophagus
>>7943782
Wouldn't HCl do literally nothing once it hits the stomach at that concentration?
Accidentally puts fertilizer by bunsen burner
Not me, but guy stuck his hand in a boiling vat of mostly pure Hydrochloric acid because he wanted to remove the magnetic stirring pill before dumping copper in it.
We were preparing a class for a general chemistry introduction class. How do you fuck up that bad as a lab tech.
>>7943809
so, what was the aftermath like?
>>7943228
>but you can dry it with molecular sieves
Just use K2CO3, molecular sieves for drying ethanol is just begging for dust contamination.
>>7943782
It can actually last longer. It depends how thick your dead skin layer is as well as how strong the acid is.
>run out of lube
>use purified mineral oil in lab
>it was sodium hydroxide
>>7943791
Stomach HCL is about 0.1M so "highly concentrated" HCL would fuck it up like everything else.
>>7943782
I would doubt anyone in the lab would have thre wherewithal to recognize what the guy swallowed, collect, measure, and mix a non-toxic solution basic enough to neutralize the acid without killing him, and administer it before the acid began doing damage.
>>7944039
>this is why you can't drink the 200 proof ethanol
But you can, anon. It'll just be the last time you ever do it
>>7944053
>drink 1ml of 200 proof ethanol
>live
>>7941986
YOU WHAT? WHERE?
WHERE ARE THE ANSWERS?
>work for bio medical company
>have amber glass ampule containing 10 grams of finely powdered anatoxin-a
>drop it on the fl---
>>7944074
>10 grams
>tfw your dinosaur break the leash while u walking it be like
>>7925900
>In geology lab
>Had to core rhyolite samples to do a mercury pore volume test
>Forced to work with a dumb ass named Fred
>Fred thinks he so cool that he can drill samples without looking.
>Manages to drill through his thumb.
Ever since then I called him four fingered Fred. Oh, he also spilled mercury all over my lab notebook the day before.
Almost spilled hydroflouric acid on my feet and legs one time
>>7944168
Fuckin' Fred.
When I was a kid, I'd always be super interested in chem and loads of experiments using chemicals. One time, I tried to make a chlorine generator so I can chlorinate stuff but it turns out I screwed one of the joins a bit too hard and it shot right out of the flask filling my parent's garage with chlorine gas. I left the place be until all of the chlorine was gone and when I cam back after a few days, everything was rusted.
>>7944198
https://youtu.be/dIJDfNO3d5E
I've been jizzed on by literally 12 different animals that I've dissected.
My professor calls me Sasha Grey.
>always read these threads
>no stories
>never did anything in highschool related to labs or anything
>despite the fact I took multiple biology and chemistry classes
>closest thing to a lab I did was putting popcorn kernels inside a flask and then heating the flask until the popcorn burnt and smelled bad
>>7944272
How does a dead animal jizz on you?
Or are you just talking about random fluids that squirt out of them?
Also dissections are disgusting, I wanted to become an MD but then doing dissections made me change my mind to get my PhD in chemistry instead.
>>7944296
Different kinds of squirtings, but a good amount of those were actual jizz squirts.
Cutting something incorrectly, or putting too much pressure on something and stuff just starts shooting out.
>>7944300
How fun. Why so many dissections?
Do you keep doing that shit in upper level biology courses?
>>7944303
I've gotten way better. I'm just a jizz magnet at this point though. When OTHER people fuck up, it still manages to fly towards me.
>take out a block of very old yellowish potassium metal sealed in plastic bag
>try to cut it into small chunks for use in birch reduction
>cut into the potassium metal
>it bursts into flames because of the superoxide
>fire extinguisher was being replaced that day to ensure it works
>fire causes white smoke to go everywhere
>everyone had to evacuate room and neighboring rooms due to potassium oxide particles going everywhere
>everything in room was coated with potassium oxide layer which eventually turned into potassium hydroxide
>lost over 5000$ worth of equipment
An attempt at an incredibly lame "are you just happy to see me" joke in the lab turned into dumping my wallet, keys, cell phone and the severed penis of a cadaver into the tray at a security scanner.
>>7944361
Other than the ordinary spilling acid all over myself, I once managed to set my hair on fire.
>>7941850
Lots of them, it's fucking awful.
>>7925900
Here the best I have yet.
>Doing charts based on font's conductors.
>Forgot to change the font's switch from 150 V to 230 V and plugged it on a 215 V plug.
>Sudden popcorn poping sounds
>Light coming from the font
>Moderately big gray cloud comes out of it in a cartoonish way.
>Teacher hopefully takes the plug out before it's too late
>Me and my partner had to change the burnt capacitors after class, some other colleages helped too.
Good thing it turned out to be fun, but it made me feel like a inconpetent disgrace.
>>7925968
>working as a lab tech for my college
>cleaning up after one of the bio classes, just washing/drying some glassware and stuff
>come back to open up the dryer some hours later and realize I accidentally put the entire lab's worth of solanum tuberosum specimens in there
>grab the tray out and set it down on the counter; shit's super hot so I grab a DI wash bottle and spray it down
>realize it was 5% acetic acid, not DI
>feeling like a fucking idiot, go to grab some gloves so I can clean up my mess and get on with my life
>knock over a container of granular sodium chloride, scattering it all over the tray
It could have been a lot worse. Nobody got hurt. Still, made me feel like a real moron.
>>7946569
Forgot my pic. God, I still get embarrassed looking at this shit.
i keep putting aqueous waste into the acid waste bin
>>7946569
What's DI?
>>7944834
Did janitor an hero??
>>7946671
Is this a urinal poop joke?
>>7946569
hurrr you so clever anon
i bet you are one of those undergrad faggots who pushes the dihydrogen monoxide meme like it might get you laid or something
>>7946569
dohohoho
You're not even trying.
>>7925900
Not me but my partner
My partner was retarded and didnt know its hard for something to boil when you stir it so he had our sample of sulfuric acid boil 10 C above its boiling point and when I went to check on it, it exploded on my hands
It was really, really dilluted though so I didnt burn my hand though, just itched a lot. But I didn't know that at the time and I was freaking out
>>7946859
>I didn't know that at the time and I was freaking out
You had no idea what chemicals you were using?
You deserve everything bad that happens to you.
>>7946868
In the lab manual it was just listed as "Diluted Sulfuric Acid" but it didnt tell us how diluted.
Looking back it was probably like 95% water
>>7946872
kinda related
thread is dead so w/e
>>7946872
It was probably 1N, which is fucking nothing.
>infect some mice with seasonal flu virus
>they all die
>i switched aviation flu with seasonal flu
>entire facility had to be sterilized
>>7946680
Deionized water. Laboratory H2O
>>7929103
>17
>university
>>7946966
Wouldn't NaCl be more funny?
>>7927180
Public school I'm guessing? Are you blind in that eye now?
>be me
>make agar for lab
>leave cap on tight
>hot plate turns on
>bottle explodes
>glass in two of my partners
>fml
>>7942379
Tip top banter.
>>7946570
So you accidentally made potato chips?
>>7948519
I understand jokes. Let me explain this joke to you so that you may understand that I understand it.
>>7926144
burn!
>need to gently warm up solution in heat basket
>plug heat basket in, not realizing it's turned on
>10 minutes later solution is ready
>put it in heat basket
>everything evaporates in brown smoke
>>7939289
I three finger tapped with my mac on "formalin vapour" it said no results found. You made all that up. Shame on you.
>>7925968
>>7942029
Pasta, but yummy pasta.
>>7944834
James Bond
>>7946988
Nice work shitlord
