|
DemeaninDemon posted:Maybe even one where your posts aren't poo poo! multiverses diverge on possible outcomes
|
#
?
Mar 8, 2016 09:20
|
|
|
|
| # ? Jun 8, 2024 16:05 |
|
|
Enourmo posted:multiverses diverge on possible outcomes 
|
|
#
?
Mar 8, 2016 09:38
|
|
|
DemeaninDemon posted:Maybe even one where your posts aren't poo poo! That may not be mathematically possible
|
|
#
?
Mar 8, 2016 09:42
|
|
|
Kinetica posted:With your posting we certainly aren't in heaven tbf we're all going to hell
|
|
#
?
Mar 8, 2016 09:54
|
|
|
Enourmo posted:multiverses diverge on possible outcomes I'm your Pippen.
|
|
#
?
Mar 8, 2016 10:01
|
|
|
DemeaninDemon posted:I'm your Pippen. 
|
|
#
?
Mar 8, 2016 10:02
|
|
|
DemeaninDemon posted:I'm your Pippen. The actual apple, or the Apple product?
|
|
#
?
Mar 8, 2016 13:47
|
|
|
Patrick Spens posted:So I was browsing wikipedia, and came across this story about the origins of guncotton. Quite a few explosives/useful chemicals have similar accidental origins. IIRC one form of radiation was discovered when a photographer left an interesting rock on top of his film box and it ruined the film. See also Silly Putty (a failure at making synthetic rubber) and the Slinky (the latter isn't so much chemistry, but still a professional engineer hosed up and made a toy out of it.) Also, weren't vulcanized rubber and cornflakes both the result of the inventors spilling some on the stove burner while trying to make something else?
|
|
#
?
Mar 8, 2016 16:08
|
|
Bad Angus! Bad!
|
Delivery McGee posted:Quite a few explosives/useful chemicals have similar accidental origins. IIRC one form of radiation was discovered when a photographer left an interesting rock on top of his film box and it ruined the film. Both x-rays (from Crookes tubes that fogged nearby film) and radioactive decay (from uranium) were discovered this way. Becquerel actually discovered the latter because he was investigating the former- he at first thought it had something to do with phosphorescent minerals. Uranium was the only one that fogged the photographic plate, and more interestingly it did it even with non-phosphorescent uranium compounds.
|
|
#
?
Mar 8, 2016 16:41
|
|
|
Luneshot posted:Both x-rays (from Crookes tubes that fogged nearby film) and radioactive decay (from uranium) were discovered this way. Becquerel actually discovered the latter because he was investigating the former- he at first thought it had something to do with phosphorescent minerals. Uranium was the only one that fogged the photographic plate, and more interestingly it did it even with non-phosphorescent uranium compounds. Yeah, the story I read on Becquerel is that he was actually studying fluorescence and phosphorescence generally. Uranium minerals were known to be very fluorescent, and in studying them he would put uranium minerals on top a a sealed photographic plate on the window sill and let the sunlight generate the fluorescence/phosphorescence. The plates got darkened, so whatever was being produced by the fluorescence could penetrate the shielding of the plate, which he thought was remarkable all by itself. Then there were a few cloudy days so he left the plates and minerals together in a desk drawer for a couple days. On a hunch he developed one of the photographic plates anyway, and was shocked to see that it was exposed just like the ones that had been sitting in the sun. What he was observing wasn't fluorescence at all and had nothing whatever to do with sunlight, but radioactivity.
|
|
#
?
Mar 8, 2016 17:16
|
|
|
Ravenfood posted:Also, I don't know how much atropine your medics carried, but can you even have enough on-hand to actually deal with a large organophosphate spill even if you could somehow get to them with appropriate PPE and the decon shower? Last I checked, you needed some pretty drat high doses compared to its use in bradycardia. Not on the ambulance, no, but we could at the very least take all that we had out of the stock cabinet, and get on the radio and tell the other agencies that were coming to do the same. Some places bought the Mark I kits with homeland security grants after 9/11, but given the short shelf life on those I doubt anyone has any these days. E:If you want to imagine what a major spill of a lot of these chemicals would be like, imagine someone sitting in a dispatch chair screaming for "EVERYONE" like Gary Oldman in The Professional. Especially if it was a train car spill, that would probably tap out nearly every ambulance in the county. Ugly In The Morning has a new favorite as of 21:57 on Mar 8, 2016 |
|
#
?
Mar 8, 2016 21:54
|
|
|
Hremsfeld posted:Cross-quoting a Cold War chem grunt: Let's Talk About Idiots! Nostalgia4ColdWar is 50 Foot Ant
|
|
#
?
Mar 9, 2016 01:08
|
|
|
MisterOblivious posted:Nostalgia4ColdWar is 50 Foot Ant Yes.
|
|
#
?
Mar 9, 2016 03:28
|
|
|
Delivery McGee posted:Quite a few explosives/useful chemicals have similar accidental origins. IIRC one form of radiation was discovered when a photographer left an interesting rock on top of his film box and it ruined the film. See also Silly Putty (a failure at making synthetic rubber) and the Slinky (the latter isn't so much chemistry, but still a professional engineer hosed up and made a toy out of it.) Sticky notes, too. The dude was trying to make a super-strong glue.
|
|
#
?
Mar 9, 2016 03:39
|
|
|
MisterOblivious posted:Nostalgia4ColdWar is 50 Foot Ant This more than anything else convinced me to read all that. He is a surprisingly compelling writer of bullshit.
|
|
#
?
Mar 9, 2016 04:40
|
|
|
EdibleBodyParts posted:This more than anything else convinced me to read all that. He is a surprisingly compelling writer of bullshit. Yeah, I know its all bullshit, but its really readable and fun
|
|
#
?
Mar 9, 2016 04:47
|
|
|
All soldier stories are bullshit from a long tradition of bullshitting.
|
|
#
?
Mar 9, 2016 06:23
|
|
|
Tunicate posted:All soldier stories are bullshit from a long tradition of bullshitting. Counterpoint: stories from basic training are probably true.
|
|
#
?
Mar 9, 2016 06:52
|
|
|
Someone mentioned a toluene compound a few pages back and it peaked my interest. While reading the wiki page on it, I checked out regular toulene since the brake parts cleaner in my garage has it in decent quantities. Apparently rocket scientists aren't the only ones the do the explodey rule 34 thing, race car engineers do it too. quote:Toluene can be used as an octane booster in gasoline fuels used in internal combustion engines. Toluene at 86% by volume fueled all the turbo Formula One teams in the 1980s, first pioneered by the Honda team. The remaining 14% was a "filler" of n-heptane, to reduce the octane to meet Formula One fuel restrictions. Toluene at 100% can be used as a fuel for both two-stroke and four-stroke engines; however, due to the density of the fuel and other factors, the fuel does not vaporize easily unless preheated to 70 °C (158 °F) (Honda accomplished this in their Formula One cars by routing the fuel lines through the exhaust system to heat the fuel). I wonder what safety precautions (if any) they had to use while handling it. Honestly, the msds sheet for crc non-chlorinated brakleen is worth a look. It also contains methylcyclohexane which I think I've seen in this thread in relation to fueling rockets. 
|
|
#
?
Mar 9, 2016 07:08
|
|
|
Well, the turbo era in F1 was known for exploding engines...
|
|
#
?
Mar 9, 2016 07:24
|
|
|
Elmnt80 posted:Someone mentioned a toluene compound a few pages back and it peaked my interest. While reading the wiki page on it, I checked out regular toulene since the brake parts cleaner in my garage has it in decent quantities. Apparently rocket scientists aren't the only ones the do the explodey rule 34 thing, race car engineers do it too. It shouldn't be too surprising that race car engineers and rocket engineers have some overlap: one's trying to use a long, controlled explosion to make something move, and another is using a lot of small but extremely fast, controlled explosions to make something move. And then there's drag racing, when you get into the top-fuel dragsters/jet engine/rocket engine cars. Those are all terrifying for their own reasons. I mean, have you seen how much fuel a top-fuel dragster uses? poo poo's insane. Edit: here you go! https://www.youtube.com/watch?v=xGTbQuhhluY Apparently that's the fuel usage for one cylinder, and they use V8's themselves. I've got a V8 in my van, and I'm pretty sure that I couldn't use the idle fuel in that demo when I'm going full throttle. Rorac has a new favorite as of 07:38 on Mar 9, 2016 |
|
#
?
Mar 9, 2016 07:35
|
|
|
Elmnt80 posted:Someone mentioned a toluene compound a few pages back and it peaked my interest. While reading the wiki page on it, I checked out regular toulene since the brake parts cleaner in my garage has it in decent quantities. Apparently rocket scientists aren't the only ones the do the explodey rule 34 thing, race car engineers do it too. Toluene itself isn't too bad. It's got that methyl group the liver can get a hold of and oxidize to benzoic acid, which then can get excreted by the kidneys. It's still recommended to ingest and inhale as little as possible, but there's a lot worse out there.
|
|
#
?
Mar 9, 2016 07:46
|
|
|
Deteriorata posted:Toluene itself isn't too bad. It's got that methyl group the liver can get a hold of and oxidize to benzoic acid, which then can get excreted by the kidneys. It's still recommended to ingest and inhale as little as possible, but there's a lot worse out there. Since most of the chemicals that get used in industry are fairly nasty and don't even make the thread, a bath in toluene isn't that bad all things considered. Kinetica has a new favorite as of 08:14 on Mar 9, 2016 |
|
#
?
Mar 9, 2016 08:10
|
|
|
Back in the day chemists would wash their hands in benzene. Delicious delicious benzene.
|
|
#
?
Mar 9, 2016 08:23
|
|
|
True enough. I mostly just wanted to post the bit about the F1 motors being fueled by it.
|
|
#
?
Mar 9, 2016 08:28
|
|
|
Rorac posted:It shouldn't be too surprising that race car engineers and rocket engineers have some overlap: one's trying to use a long, controlled explosion to make something move, and another is using a lot of small but extremely fast, controlled explosions to make something move. And then there's drag racing, when you get into the top-fuel dragsters/jet engine/rocket engine cars. Those are all terrifying for their own reasons. I mean, have you seen how much fuel a top-fuel dragster uses? poo poo's insane. Top fuel dragsters are just insane in every way. The drivers and crewmen filling the tank wear gas masks. The flames coming out the exhaust? That's leftover nitromethane still burning on the way out, and produces a significant amount of downforce (like, 800 pounds IIRC, which is nothing compared to the aero devices, but is welcome in the half-second it takes to get up to speed for the wings to start pushing). The bigger flames at night is because the nitro-rich exhaust is so hot it's dissociating and re-burning the water vapor in the air, like a magnesium fire. There's no cooling system because they're evaporatively cooled by the fuel. The mix is so rich and so compressed by the supercharger that it'll hydrolock and blow the head off if a cylinder's two spark plugs fail for one cycle. And that's how you make over a thousand horsepower per liter of engine displacement. The downside is that it's burnt to a crisp and needs a complete overhaul every quarter-mile (assuming it doesn't just explode)/4 seconds at full throttle.
|
|
#
?
Mar 9, 2016 09:20
|
|
|
Along with everything else nitromethane also works as a high explosive, more energy than TNT but lower velocity of detonation. This was discovered by accident in 1958. https://en.wikipedia.org/wiki/Nitromethane#Explosive_properties
|
|
#
?
Mar 9, 2016 13:58
|
|
|
When a chemist puts a nitro group and a hydrocarbon group in the same room you shouldn't really be surprised about things going bang. Speaking of fuel flow, the Bloodhound SSC has three engines. A supercharged Jaguar V8 rated at 800+ bhp , a Eurojet EJ200 jet engine and a hybrid rocket engine (solid fuel, liquid oxidizer). The jet engine is supposed to provide the initial thrust up to about 500kph, after which the rocket ignites and takes it to 1600+kph. What's the V8 for then you ask? That's the oxidizer pump for the rocket.
|
|
#
?
Mar 9, 2016 14:23
|
|
|
Kinetica posted:Since most of the chemicals that get used in industry are fairly nasty and don't even make the thread, a bath in toluene isn't that bad all things considered.
|
|
#
?
Mar 9, 2016 14:26
|
|
|
Collateral Damage posted:What's the V8 for then you ask? That's the oxidizer pump for the rocket. 
|
|
#
?
Mar 9, 2016 14:40
|
|
|
DemeaninDemon posted:Back in the day chemists would wash their hands in benzene. Delicious delicious benzene. Heck, back in the days when they were still figuring out that "hygiene" needed to be a thing in hospitals, they'd spray everything down with phenol to kill germs. I'm sure it was more than up to the task, given its propensity for gleefully ripping apart any proteins it encounters, but I pity the surgeon that accidentally gets some on his hands, or breathes in the fumes...
|
|
#
?
Mar 9, 2016 14:42
|
|
|
ol qwerty bastard posted:Heck, back in the days when they were still figuring out that "hygiene" needed to be a thing in hospitals, they'd spray everything down with phenol to kill germs. I'm sure it was more than up to the task, given its propensity for gleefully ripping apart any proteins it encounters, but I pity the surgeon that accidentally gets some on his hands, or breathes in the fumes... For a while, the sign of a really dedicated and successful surgeon was absolutely wrecked hand skin.
|
|
#
?
Mar 9, 2016 14:47
|
|
|
Collateral Damage posted:What's the V8 for then you ask? That's the oxidizer pump for the rocket. WITNESS ME!
|
|
#
?
Mar 9, 2016 15:46
|
|
|
Collateral Damage posted:What's the V8 for then you ask? That's the oxidizer pump for the rocket.  Turbopumps are crazy.
|
|
#
?
Mar 9, 2016 17:06
|
|
|
zedprime posted:Accidentally? The way I heard it Lister pioneered clean surgery by, as you say, spraying everything down in the theater. Also, his hands. Also, open wounds. Halstead, inventor of the radical mastectomy (which saved lives, prechemotherapy), invented rubber gloves because his nurse, later wife, got severe skin problems from the disinfectants.
|
|
#
?
Mar 9, 2016 18:19
|
|
|
ol qwerty bastard posted:Heck, back in the days when they were still figuring out that "hygiene" needed to be a thing in hospitals, they'd spray everything down with phenol to kill germs. I'm sure it was more than up to the task, given its propensity for gleefully ripping apart any proteins it encounters, but I pity the surgeon that accidentally gets some on his hands, or breathes in the fumes...
|
|
#
?
Mar 9, 2016 19:31
|
|
|
Gobbeldygook posted:then spit it out. poo poo. I have never done this. 
|
|
#
?
Mar 9, 2016 20:01
|
|
|
https://www.youtube.com/watch?v=aqOVRMHI2vo http://arstechnica.com/gadgets/2014/03/bloodhound-ssc/
|
|
#
?
Mar 10, 2016 00:00
|
|
|
MisterOblivious posted:https://www.youtube.com/watch?v=aqOVRMHI2vo Hey, I wrote that! 
|
|
#
?
Mar 10, 2016 00:16
|
|
|
|
| # ? Jun 8, 2024 16:05 |
|
|
Crossposting, kind of, from a thread in D&D where the conversation a little while ago was on some raw milk law that I didn't give much of a gently caress about. Somebody mentioned HF and a link about what some incredibly stupid person did with it and uh  http://www.ncbi.nlm.nih.gov/pubmed/8420252 You ever read a sentence, and all the words individually make sense, but you have to go back and reread it because your brain violently rejects that exact arrangement of words? That happened when I read the title of that report. At least if anything good came out of it, "hydrofluoric acid enema" sounds like a loving amazing name for a grindcore metal band.
|
|
#
?
Mar 11, 2016 14:09
|
|