(Thread IKs:
PIZZA.BAT)
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I love rally hatchbacks they're like bumblebees
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Oct 27, 2021 23:15
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rally is the only cool form of racing a car (all motorcycle racing is cool)
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Oct 27, 2021 23:17
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lmfao the BMW that had to 3-point-turn the hairpin
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Oct 27, 2021 23:22
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Video Nasty posted:lmfao the BMW that had to 3-point-turn the hairpin came to post that I'm the BMW 3 pointer
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Oct 27, 2021 23:23
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Video Nasty posted:lmfao the BMW that had to 3-point-turn the hairpin it's rally as long as you don't die and cross the finish line it's good
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Oct 27, 2021 23:25
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Rooney McNibnug posted:i need to poast this again
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Oct 27, 2021 23:26
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the cute four dance
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Oct 27, 2021 23:39
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Rooney McNibnug posted:i need to poast this again holy poo poo i'm supposed to pronounce qt "cute"?
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Oct 28, 2021 01:36
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according to those dorks, yes.
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Oct 28, 2021 01:47
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https://twitter.com/weloveyouzahir/status/1453155614545399809
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Oct 28, 2021 02:04
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Oct 28, 2021 02:05
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I hate when I spill the hydrofluoric acid I'm drinking.
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Oct 28, 2021 02:07
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mystes posted:I hate when I spill the hydrofluoric acid I'm drinking. https://www.youtube.com/watch?v=eOlUU8l8j5M
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Oct 28, 2021 02:09
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Is this like the Russian equivalent of Gangnam Style?
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Oct 28, 2021 02:11
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mystes posted:Is this like the Russian equivalent of Gangnam Style? https://www.youtube.com/watch?v=mDFBTdToRmw
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Oct 28, 2021 02:13
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I stand corrected
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Oct 28, 2021 02:14
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mystes posted:I hate when I spill the hydrofluoric acid I'm drinking. interestingly, plain old acetone would probably have a similar effect on those sorts of plastics, and you can apparently drink quite a lot of acetone without killing yourself and it even gets you drunk. maybe he was just drinking acetone. drinking acetone will give you sonic diarrhea, but you can't win 'em all
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Oct 28, 2021 03:05
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mystes posted:I stand corrected https://www.youtube.com/watch?v=j4IgNPmaKkw
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Oct 28, 2021 03:08
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https://www.youtube.com/watch?v=QiFBgtgUtfw
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Oct 28, 2021 03:11
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Sagebrush posted:interestingly, plain old acetone would probably have a similar effect on those sorts of plastics, and you can apparently drink quite a lot of acetone without killing yourself and it even gets you drunk. maybe he was just drinking acetone. i had a really good laugh when i was trying to get some epoxy off the end of a ham radio antenna and had a bright idea to let the end soak in a whole bottle of acetone that i put into a solo cup. You know that old cartoon bit where a skeleton drinks a beer? Yeah it was like that.
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Oct 28, 2021 03:20
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i did that with hydrogen peroxide once. fortunately it was only 3% cause hahah whoo that could have gone real differently
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Oct 28, 2021 03:23
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I have a huge stock pot with a glass lid and a one ring electric hob / heater that I used to use outside on the back patio for acetone smoothing 3D prints, and one evening I'd done a print and wanted to finish it up but it was pissing down rain and the electric hob was stored in the garage, I thought well maybe I can just do it on the gas cooker hob ? And luckily I stopped and thought about acetone vapor overflowing out of the pot and down to meet the gas flame and decided it could wait til tomorrow.
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Oct 28, 2021 03:32
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oh god. you ghost woulda had to namechange to NoMoreNegative.
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Oct 28, 2021 03:34
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a student once came to my office a few days after we had printed some of his parts, and proudly showed me the acetone smoothing he had done at home. i asked him about his setup and yep, metal cooking pot on a gas stove. s'cool
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Oct 28, 2021 03:46
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when i was in grad school a ta for an organic chem lab was walking around observing and saw someone heating diethylether with an electric hotplate. he rushed to grab the round bottom flask off and in his haste didn't stop and think hmm this could be hot. grabbed it, hot, dropped it on the floor, instant fire. it burns v fast and a fairly low heat tho so it didn't do any real damage but they evacuated the building and that lab was closed for a week while they aired it out also when i was an undergrad i put my elbow in a drop of ~50% peroxide without realizing it. later in the day i went to scratch my elbow and it felt scaley. looked at it and it there was a spot ~1 cm in diameter that was solid white and i realized immediately what had happened. edit: hf wouldn't actually do anything to that stuff since it's not a very aggressive acid (it's even a weak acid), unless like, you have bones. that spill was prob sulfuric acid. it tends to leave a charred mess behind similar to that. also it really really sucks when someone spills some and doesn't fully clean it up. it has a really low vapor pressure so it doesn't easy evaporate like say hcl. you can p much always spot someone that works in a chem lab that uses it a lot because they're have holes in their shirts at benchtop level. worst acid is chlorosulfonic acid, a mixture of concentrated hydrochloric and sulfuric acid. it fumes, doesn't fully evaporate, reacts violently with water, and to dilute it you use glacial acetic acid. we used to use it to sulfonate glass oh i just remembered that in another lab someone spilled ~3 liters of sulfuric acid on their book bag. it was somewhat dilute at least but there's no coming back from that really. Woolwich Bagnet fucked around with this message at 05:19 on Oct 28, 2021 |
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Oct 28, 2021 05:09
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ochem is terrifying poo poo
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Oct 28, 2021 05:19
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Jonny 290 posted:ochem is terrifying poo poo we had this bad boy https://en.wikipedia.org/wiki/Dimethylmercury in one of our chemical fridges. i wouldn't even go near that fridge because of it
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Oct 28, 2021 05:21
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i liked ochem so much I took the 2nd advance lab for fun
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Oct 28, 2021 05:23
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a lab i worked in had a big bottle of HF in a wooden box in the corner that no one had touched for like 10 years. the plan for dealing with it was to give it to whoever got the lab space next
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Oct 28, 2021 05:25
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Woolwich Bagnet posted:we had this bad boy https://en.wikipedia.org/wiki/Dimethylmercury in one of our chemical fridges. i wouldn't even go near that fridge because of it what the unholy gently caress would anyone have DMM just hanging around for aaaaaa
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Oct 28, 2021 05:44
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Woolwich Bagnet posted:we had this bad boy https://en.wikipedia.org/wiki/Dimethylmercury in one of our chemical fridges. i wouldn't even go near that fridge because of it i always liked how dimethylmercury has essentially no use except as a reference point for how poisonous a chemical can be. there's another one, one of the fulminates i think, that also has no use except to define the scale for how sensitive an explosive can be. it can be set off shining a flashlight on it
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Oct 28, 2021 05:45
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i was doing chemical inventorying because my uni was upgrading to barcoded and actually tracked chemicals. found a bottle with ~750 g of picric acid in it. from 1978. picric acid is a shock and friction sensitive explosive with ~1.2x the power of tnt. my advisor wanted me to open it and store some in water, which renders it inert. this container probably hadn't been opened in decades and had clearly dried out. i called for a bomb squad to dispose of it and they evacuated the building/surroundings while it was being removed. we were actually talking today at work about how insanely unsafe the things we did in grad school labs were.
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Oct 28, 2021 05:45
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Kazinsal posted:what the unholy gently caress would anyone have DMM just hanging around for aaaaaa a year or two earlier a postdoc had been working on detection methods for it. i would have never accepted a project like that
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Oct 28, 2021 05:47
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Woolwich Bagnet posted:a year or two earlier a postdoc had been working on detection methods for it. i would have never accepted a project like that Gateways to the Beyond
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Oct 28, 2021 05:55
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my brother has a degree in ochem and frankly it all sounds insane
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Oct 28, 2021 06:02
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Woolwich Bagnet posted:i was doing chemical inventorying because my uni was upgrading to barcoded and actually tracked chemicals. found a bottle with ~750 g of picric acid in it. from 1978. picric acid is a shock and friction sensitive explosive with ~1.2x the power of tnt. i imagine that crunching some crystals as you unscrewed the lid would be enough to set it off, yes? Woolwich Bagnet posted:a year or two earlier a postdoc had been working on detection methods for it. i would have never accepted a project like that according to wikipedia it was first synthesized in 1857 and i was astounded to learn that the guy who did it lived until 1905 Sagebrush fucked around with this message at 06:08 on Oct 28, 2021 |
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Oct 28, 2021 06:05
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Sagebrush posted:i imagine that crunching some crystals as you unscrewed the lid would be enough to set it off, yes? yes. and taken out a good sized chunk of the building, if not leveled it. chemists tend to have lived a long time, especially long ago, because the only way to be one was to be rich/from a rich family.
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Oct 28, 2021 06:10
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i just meant that if karen wetterhahn died from one drop on her glove, the guy going "hahaha look what i got from reacting mercury and cyanide" in an era when analytical chemistry was tasting whatever you made should not have lived another fifty years
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Oct 28, 2021 06:15
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Sagebrush posted:i just meant that if karen wetterhahn died from one drop on her glove, the guy going "hahaha look what i got from reacting mercury and cyanide" in an era when analytical chemistry was tasting whatever you made should not have lived another fifty years ive met lots of chemists that still taste things
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Oct 28, 2021 06:26
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| # ? Apr 28, 2024 12:09 |
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Kazinsal posted:what the unholy gently caress would anyone have DMM just hanging around for aaaaaa it used to be an nmr calibration standard but lol at not disposing of it instantly after the mid 90s.
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Oct 28, 2021 06:30
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