From your link, a specific PAH called benzopyrene _may_ cause cancer in low amounts. It's a pretty extraordinary claim to say that we should be concerned about carcinogens from cooking with cast iron, which has been used long before our current high rates of cancer. I could see that being an argument against certain oils, but contrast that with the corresponding increase in cancer rates after the proliferation of teflon and PFAS in cookware/durable goods/clothing/lubcrication.
Be careful there. It's difficult to know historical base cancer rates, given recent advances in cancer detection. It's likely lots of cancer deaths in the elderly were simply chalked up to old age.
Also, every time DNA is copied, you roll the dice with cancer. Live long enough and you'll eventually get cancer. As people live longer, one expects cancer rates to increase, all else being equal. (Yes, there have been recent dips in life expectancy in the US, but over the time frame I'm presuming you're comparing with "our current high rates of cancer", the trend is still positive.)
Now, maybe cancer rates have increased due to increases in environmental carcinogens. However, it's not obvious to me that's the case.
Cancer rates have been dropping for the last 20 years. PAHs from cooking are known carcinogens where PFAs is possible carcinogen that in animals models, results are inclusive and observational studies the data is unreliable. What would you take the risk with? PAHs, which there are studies showing increased cancer rates in restaurant workers and show to cause cancer in animals models, or PFAs which the there is no reliable studies showing cancer risk.
I think your point is valid, but also keep in mind that we just generally live longer than all our ancestors did, and they did a bunch of things we now consider not very good (e.g. working fields without sunscreen) because they generally didn't live long enough to develop cancer at the rates we are seeing with our current life expectancies.
To further your point, there is shockingly little education to the general public about cooking oil smoke points. I've cooked more or less exclusively with grapeseed or safflower oil since learning about it, but so many people use low smoke point oils (olive oil mostly, thanks health craze) for high-temp purposes and there's nothing to indicate to them that there is a problem
This can be exaggerated though. Obviously you don't want to deep fry things in olive oil, but some people say ridiculous things like "olive oil should only be used as a condiment and not as a cooking oil" ignoring that people in the Mediterranean, following a diet that seems to be one of (if not the) heathiest diets on the planet, routinely cook with it.
Did you skip over "In almost all applications of superconductors, they don't use high-temperature ones for one simple reason: Material properties."
They're saying that LHC does not use a ceramic, and therefore high-temperature, superconductor; instead they use metallic (cooled) superconductors because they can be molded.
The sentence still does not make sense because the superconductors in the LHC (though, rereading it a couple of times it is somewhat ambiguous) are not high temperature by any definition. Also, again, ceramic high-temperature superconductors are metallic, or they would not be conductors. “Ceramic” and “metallic” are not mutually exclusive in material sciences.
There are lots of reasons to use more classical superconductors in the LHC, just as in ITER. Some are design and engineering issues, as you mention. Another one is that the tapes we use for YBCO were not a practical thing when the LHC was designed. But now they are (though they haven’t been used in such a large scale) and you can bet that they’ll jump at any opportunity to get rid of the helium loop and take advantage of the stronger magnetic fields you can get with YBCO.
can you make wires from cermets? Thats the point. we need a substance that is malleable(?) enough like copper wire that electrons can pass through. Pottery ceramic wont work like that.
Well, nobody mentioned cermets, or wires, and there are plenty of applications for superconductors beyond wires. Even so, we are perfectly able to make fibre optics cables with silica, which is a ceramic.
> we need a substance that is malleable(?) enough like copper wire that electrons can pass through.
Malleability (actually, ductility) has nothing to do with electric conductivity. It can be useful depending on the use case, but for example on a printed circuit you don’t care about that. Not everything is a dangling wire.
Also, you might not realise this but pretty much nothing is malleable at liquid helium temperature.
> Pottery ceramic wont work like that.
Sigh. Ceramics are not pottery, and more than 99% of the time do not have anything to do with pottery. Ceramics are compounds that are not intermetallic, typically oxides, sulphides, nitrides, etc. Some are bendy (though generally less than metallic alloys), some are hard, some are electric conductors, some are not. They have very diverse sets of properties.
They are everywhere in the chips on the device you use, in its display, in the power plants that make electrons move so you can use it, in any lithium-ion battery, etc. I don’t think I can name one device that does not involve ceramics. Even a shovel, either in the form of a passive layer that makes it stainless, or in the form of rust on it. None of that has anything to do with pottery.
Yes, but the minimal bending radius would be far from impressive.
> Thats the point. we need a substance that is malleable(?) enough like copper wire that electrons can pass through.
So many assumptions here. Copper wire is but one form that is useful for energy transport. But superconductors don't need a lot of thickness and parallel layers of tape have enough flex in one dimension to be very useful. Usually they allow for complex routing by adding twists, like flatcable, but given the magnetic fields involved you don't want to do that in free space but firmly tied down to something (preferably something non-magnetic!).
> Pottery ceramic wont work like that.
Ceramics are a vast class of materials, which includes pottery ceramics but also many others which have a very large range and diversity of properties. They are essentially a whole branch on the tree of materials science that range from Tungsten Carbide to diamond to ordinary clay and a whole raft of others.
Maybe I'm uniquely on a path to burnout, but I put in at least 6 hours of what I would call hard knowledge work per day as a SWE. Throw on 1-3 hours of collaboration and an hour of truly useless meetings and I'm at a 45+ hr week.
Factor in commute time, via bike so counts towards exercise minutes, and I'm working 50 hr weeks + 24/7 15 minute SLA on-call once every other month.
It's unfathomable to me that this isn't the average experience, and that anyone would get paid more than $120k doing any less.
I've got a side project still on Svelte 3, I feel this. I got the implementation into a good state a few months ago and haven't needed to touch it, soon it will be two major versions behind. No regrets, no other framework was as easy to work with for a primarily SSR app.
I was feeling this with Quarkus too, but they finally set one of their recent versions as LTS. Setting an LTS and migration guides between LTSs is a practice I'd like to see more in front-end tech.
There's about a 99% chance you can update from Svelte 3 to 4 without any code changes. Some code changes are performed automatically by the migration script: https://svelte.dev/docs/v4-migration-guide
Yeah I have a little personal Svelte app from the v3 days too, basically a simple form site that I use to choose boardgames during dinner parties.
It still works locally, been meaning to update it which I think will be painless as well because it's a dead simple site. No regrets either, I really like Svelte and tried to convert some data visualization apps with it but couldn't win mindshare at the time in these companies.
I haven't look into too much, but what made react easy to adopt was that Facebook would put out codemods to help migration during major transitions. It was easy to justify these version bumps when there was tooling that made these transitions somewhat painless.
This reminds me in a way of Java Cards / JCOP. It would be cool to see more people hack around on embedded systems, I'm all for stuff like this lowering the bar for entry. Cool!
This is a myth. I was struggling with getting a good non-stick-ability on my Lodge, until someone pointed out the 'patina' is really just burnt carbon and does nothing for non-stick. The non-stick seasoning comes from polymerized oils, which aren't affected by lye-free soaps. I haven't had any sticking issues since I've started washing my pan with soap after a messy meal and leaving a microscopic film of Crisco on after drying.
It was years before I understood this and got a good patina on mine. Give the pan a good clean and do a lot of gentle frying dishes in a row.
The soap myth harkens back to the day when soaps were actually pretty caustic - they were lye based formulas that you had to use gloves to wash dishes with. That stuff would eat through enamel.
How is it crazy? Jetbrains' IDEs provide more than enough value as it is. I don't want to pay for features like their collaborative coding or AI assistant that I won't use.
Would you rather them roll out cost-plus pricing or roll up the cost of new features into higher base prices?
Avoid resellers / 'cheap' registrars like NameCheap, GoDaddy. DNS propagation, domain 'locking', etc. is so much easier to manage and faster using registrars who care about their business. Hover comes to mind, recently I've transferred everything to CloudFlare.
Ah! Will think over this. I have too many domains and I might need to pick a good one for some of the primary ones that I do not want to lose.
I have heard good things about Cloudflare as a registrar. In-fact, I suggest them to a friend who uses it. However, I user Cloudflare for DNS for most of my domains. SO, I won't move the domains registration to them.
