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TotalLossBrain posted:You can't super-conduct in here, this is a warm room! Quoting for a new page
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Jun 29, 2022 04:45
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Ever sit around and think about all this poo poo and wonder if humanity would be able to figure it out all over again when we destroy ourselves and have to start over
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Jun 29, 2022 04:58
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there are a bunch of discoveries that were just pure luck and happenstance
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Jun 29, 2022 05:00
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You can definitely remove current from a superconducting magnet, it just takes a long time. Like hours or days or something to bleed out the current in a controlled fashion. Quenching can be somewhat bad for superconducting magnets, like destroy them bad. But superconductors can also “trained” by quenching them after they’re manufactured. You just pump current into them until you get a quench and do it in a more controlled environment and it will be able to withstand more current the next time (up to a point of course). Idk if medical MRI magnets need the training, they may be engineered differently.
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Jun 29, 2022 05:07
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Eeyo posted:You can definitely remove current from a superconducting magnet, it just takes a long time. Like hours or days or something to bleed out the current in a controlled fashion. they're engineered to make a crapload of money for whichever vendor sells and services them, so why wouldn't they self-destruct as often as possible?
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Jun 29, 2022 05:09
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KoRMaK posted:there are a bunch of discoveries that were just pure luck and happenstance Like what? And do you think circumstances were so rare that someone else wouldn't have stumbled on them for a significant time or ever? I'm curious what your thoughts are on this.
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Jun 29, 2022 05:15
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Mister Speaker posted:Like what? And do you think circumstances were so rare that someone else wouldn't have stumbled on them for a significant time or ever? I'm curious what your thoughts are on this. pennicilin was a fluke discovery. antibiotics were something most people had not heard of going into world war 2, and they are probably the most revolutionary medical discovery of all time.
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Jun 29, 2022 05:21
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im just thinking of the numerous times in many different fields someone tried to do something, some other random event happened, the experimenter forgot about it, and then came back days ir weeks later to see something completely different than they had set out to accomplish but started loving with this new poo poo for a while drat i really wish i had a list of these. i bet james burke could rattle off a bunch
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Jun 29, 2022 05:27
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Minera posted:pennicilin was a fluke discovery. antibiotics were something most people had not heard of going into world war 2, and they are probably the most revolutionary medical discovery of all time. that's definitely in the class of 'a microbiologist would discover it eventually', though
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Jun 29, 2022 05:33
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KoRMaK posted:im just thinking of the numerous times in many different fields someone tried to do something, some other random event happened, the experimenter forgot about it, and then came back days ir weeks later to see something completely different than they had set out to accomplish but started loving with this new poo poo for a while https://www.concordia.edu/blog/9-successful-inventions-made-by-accident.html https://bestlifeonline.com/accidental-inventions/ Superglue and the implantable pacemaker seem notable as accidental inventions. I don't count velcro since that's just copying something found in nature. e: I don't think that people will stop having the drive or will to make meaningful discoveries, but I do think that the resources needed to make meaningful discoveries will become prohibitively scarce before we discover alternative resources.
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Jun 29, 2022 05:37
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This is a great video and explanation in the description on what happens during a quench. (I think I originally saw this here, as there are some related videos from these same folks where they get up shenanigans when it is working.) https://www.youtube.com/watch?v=9SOUJP5dFEg
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Jun 29, 2022 05:44
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Unperson_47 posted:Ever sit around and think about all this poo poo and wonder if humanity would be able to figure it out all over again when we destroy ourselves and have to start over We burned all the easily-accessible coal and mined all the easily-accessible metal ores. If current society falls back to an agrarian state, there won't be a second industrial revolution by anything recognizably human.
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Jun 29, 2022 05:56
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Bacon Taco posted:
My forklift training: Up. Down. Tilt. Forward. Reverse. Put the forks on the ground when you park. I'm not minimalizing for effect, my trainer literally only showed me what the levers did and and told me to keep the forks flat when parked. I only needed to move stuff in a small area so it really wasn't a big deal, really. Moving stuff with a rider pallet jack was so, so much worse. I loving hate those things. Utterly terrifying. SimonSays posted:It's just standard engineer brain. They reinvent bikes every year and yet the bikes stay the same!! I get such a kick out of designers and engineers that know absolutely nothing at all about bikes "reinvent" the bike by making them worse in every way than a product that's basically been solved for over a hundred years. Case in point: the Tesla bike.  You don't steer it directly, it relies on the pressure difference between your hands. Guess you're never taking a drink of water or using a turn signal ever again! Speaking of pressure, that "saddle" is going to a number on your taint. Also speaking of pressure, the angle of the saddle would make your arms and shoulders ache in less than a mile
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Jun 29, 2022 06:33
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I work in a hospital imaging department, we spend a non-trivial amount of time trying to keep things out of the magnet that shouldn't be there. One of the things we stress about a lot is first responders just walking into zone 4 where the magnet is. Especially cops, most especially cops. Also did you know a large amount of the worlds helium is currently produced in Russia? Also that an MRI takes 8-10 thousand liters of liquid helium to operate correctly. I think about this every time I see someone with party balloons
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Jun 29, 2022 06:41
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KoRMaK posted:im just thinking of the numerous times in many different fields someone tried to do something, some other random event happened, the experimenter forgot about it, and then came back days ir weeks later to see something completely different than they had set out to accomplish but started loving with this new poo poo for a while Here's one for your list: The original Honeycrisp apple tree was damaged in a Minnesota winter, but 4 clones had been made. They were ordered to be destroyed, but nobody did it. The first "premium" apple (it wholesaled for 4x what other cultivars did) only exists because somebody didn't do their job. Almost all premium marketed apple brands, such as Cosmic Crisp, are Honeycrisp crosses bred to make harvesting less expensive. I seriously suggest that you Google new apple cultivars in the grocery store before buying. If it's a Honeycrisp cross, don't buy it. They're crossing for profit, not quality. Most of them are super disappointing and they cost so much because of the patent, not the quality.
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Jun 29, 2022 06:41
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they can mine our trash layers and sift the oceans for plastic to eat
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Jun 29, 2022 06:45
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Is it true that Herschel sort of discovered infrared waves by accident? In the new Cosmos series he's depicted as recording the heat of different bands of visible light through a prism but his 'control' thermometer was right where IR would heat things up.
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Jun 29, 2022 06:46
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MisterOblivious posted:Here's one for your list: Looked it up and as far as I can tell, my precious Pink Lady/Cripps Pinks are unblemished by the duplicitous Honeycrisp lineage. 
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Jun 29, 2022 07:08
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Tunicate posted:that's definitely in the class of 'a microbiologist would discover it eventually', though But in our reality, it didn't happen that way, it happened through a fluke.
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Jun 29, 2022 07:15
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MisterOblivious posted:If it's a Honeycrisp cross, don't buy it. They're crossing for profit, not quality.  All fruit growers are working for profit.
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Jun 29, 2022 08:24
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Unperson_47 posted:Looked it up and as far as I can tell, my precious Pink Lady/Cripps Pinks are unblemished by the duplicitous Honeycrisp lineage. I'm just so disappointed that most of the big commercial cultivars available year-round are sweet trash like the Pink Lady. Where are my loving tart apples in winter, fruit industry? Unfuck your trees.
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Jun 29, 2022 09:59
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https://i.imgur.com/KVc39Xb.mp4 If it works
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Jun 29, 2022 10:34
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jackhunter64 posted:lol if you have third rail, overhead 25kv or bust. Seems fine for metro use - but I kind of prefer the "raised rail upside down next to the tracks, with a plastic cover" style over the "spicy track that looks like the two weight bearing ones" style. It's a gradient, but the latter crosses my threshold for looking like a deathtrap.
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Jun 29, 2022 11:36
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Minera posted:pennicilin was a fluke discovery. antibiotics were something most people had not heard of going into world war 2, and they are probably the most revolutionary medical discovery of all time. My neighbor was allergic to everything; animals, foods, grass, you name it. A few years ago she was brought into the hospital for an aspirin overload treatment where they gave her a dose of aspirin (which she was allergic to) then hit her with an EpiPen and repeated until she stopped having a reaction. Now she is fine and has no major allergies as long as she takes a low dose aspirin every day. I just found this treatment to be amazing because it could have been done 100 years ago if it was known.
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Jun 29, 2022 11:54
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Ornamental Dingbat posted:I just found this treatment to be amazing because it could have been done 100 years ago if it was known. I have never heard of this, what is the treatment called?
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Jun 29, 2022 12:05
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NoneMoreNegative posted:
Looks like red and black to me.
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Jun 29, 2022 12:10
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I love the design, red and gold is very snazzy but the actual consequence seems bad
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actually it's infrared and ultraviolet
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Jun 29, 2022 12:13
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Shemp the Stooge posted:I have never heard of this, what is the treatment called? I think it was something like aspirin desensitization or aspirin overload treatment.
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Jun 29, 2022 12:30
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The technical name is allergen immunotherapy and it's been known about since 1911, so they did have it 100 years ago. Probably wasn't a widespread and accepted treatment back then though.
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Jun 29, 2022 13:07
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everydayfalls posted:Also did you know a large amount of the worlds helium is currently produced in Russia? Also that an MRI takes 8-10 thousand liters of liquid helium to operate correctly. Apparently over half of the world's Neon gas is produced in the Ukraine, which is instrumental for the lasers used to make semiconductors, exasperating the global computer chip shortage. mom and dad fight a lot fucked around with this message at 13:22 on Jun 29, 2022 |
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Jun 29, 2022 13:20
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  https://i.imgur.com/3Jwry9s.mp4
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Jun 29, 2022 13:59
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everydayfalls posted:I work in a hospital imaging department, we spend a non-trivial amount of time trying to keep things out of the magnet that shouldn't be there. One of the things we stress about a lot is first responders just walking into zone 4 where the magnet is. Especially cops, most especially cops. Yeah Helium comes as a by-product of natural gas exploitation. Concentration is usually <1% but for rich fields it can be a few percent up to like 10%. So Russia, being a big producer of natural gas, can produce a lot of it.
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Jun 29, 2022 14:11
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https://www.youtube.com/watch?v=BGAUcTs0nwU
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Jun 29, 2022 14:20
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https://www.youtube.com/watch?v=iJ4T9CQA0UM
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Jun 29, 2022 14:34
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MisterOblivious posted:Here's one for your list: Cosmic Crisp is pretty good tho Paid 88c/lb a few days ago TotalLossBrain fucked around with this message at 14:39 on Jun 29, 2022 |
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Jun 29, 2022 14:36
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Lol, the sign sums it up so well
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Jun 29, 2022 14:56
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Ornamental Dingbat posted:There's video of Tractorgoth https://twitter.com/ssssludge/status/1541885779403841536/photo/1
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Jun 29, 2022 15:15
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KoRMaK posted:and helium doesn't just grow on tree ya know Yup. Nearly every ounce of helium we have is sourced from natural gas wells, and is formed by radioactive decay of Uranium via Alpha release, the Alpha forming into stable Helium after it absorbs an electron. And its getting harder to source it.
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Jun 29, 2022 15:24
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https://i.imgur.com/cpPxr1l.gifv
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Jun 29, 2022 15:25
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I am here for the gothification of all industrial processes.
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