it would be about as reliable either way
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fullsquare@awful.systemsto
Technology@beehaw.org•A Finnish town is heating itself with 2,000 tonnes of crushed rock: its giant “sand battery” can cover almost a month of heating demand and has cut district heating emissions by 70%
4·13 hours agothat’s no problem at all, systems like that are in use
fullsquare@awful.systemsto
Technology@beehaw.org•A Finnish town is heating itself with 2,000 tonnes of crushed rock: its giant “sand battery” can cover almost a month of heating demand and has cut district heating emissions by 70%
6·14 hours agoIt’s easier to freeze water than to cool rock borehole
you can selfhost an instance from it
Neither can their operator, or provider, or funder
fullsquare@awful.systemsto
World News@lemmy.world•Saudi wealth fund scales back ‘fantastical’ plans for NeomEnglish
2·2 days agoSaudis parked fuckload of money in ai startups
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Fuck AI@lemmy.world•In which AI glazers continue to be utterly shameless assholes
10·2 days agothst must be a 4chan transplant
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Technology@lemmy.world•More Renewables Lead To Lower Demand For Methane In EuropeEnglish
1·2 days agoThis will continue as long as there are CCGTs used as baseload, then it will drop as CCGTs (and biomass + waste burners) will cover the gaps
fullsquare@awful.systemsto
Technology@lemmy.world•More Renewables Lead To Lower Demand For Methane In EuropeEnglish
4·2 days agomethane cracker? that’s a very unusual unit that outputs hydrogen and carbon. i could find info about opening of ethane cracker in 2025, but that’s for plastics, next to shutdown of another similar unit
fullsquare@awful.systemsto
Selfhosted@lemmy.world•A solar powered website that goes offline when there's no powerEnglish
3·2 days agoLithium-iron is about 2x more expensive, there might be different availability and energy use during manufacture is probably higher
fullsquare@awful.systemsto
Selfhosted@lemmy.world•A solar powered website that goes offline when there's no powerEnglish
13·2 days agoLead-acid batteries work if you don’t care about weight and lithium-iron phosphate if you do
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Ask Lemmy@lemmy.world•How can you detect cancer spreading Nitrates in the water supply?
7·4 days agoyeah this is only practical option, the analysis isn’t that expensive, but equipment to run it is. but also people who have their own water wells have to submit their own samples
fullsquare@awful.systemsto
TechTakes@awful.systems•Stubsack: weekly thread for sneers not worth an entire post, week ending 16th August 2026English
7·4 days agothere might be something in there, any short question about SPPS devolves into gratuitous nonsense mashing together standard peptide coupling conditions, sometimes from three different approaches or more (publicly available from reagent suppliers, there are many variants so most of info repeats) even when it’s not the right tool to use. The more obscure reagent or use case, the faster it devolves into word salad, even if there’s clear analogy to more common one. Which, to be fair, is to be expected
another one, How to initiate formation of Grignard reagent from alkyl bromide
- this is a reaction very strongly inhibited by water. product (grignard reagent) sweeps all water, which makes reaction faster, so if you dump all bromide in at once there will be nothing happening, then you get thermal runaway instantly and possibly magnesium fire. so the way to go is to make small amount at first, then go up from there slowly. generally you don’t need to try very hard as long as everything is dry; procedures given are cribbed from syntheses using aryl bromides, which might require some prodding, old ones of which used small amount of alkyl bromide as initiator which here is useless advice. Curiously this didn’t hit guardrails, as this led to many accidents when done by clueless people including meth lab fires
Before i hit usage limit, two different chatbots happily devised schemes for ESD protection for zener diode (it’ll be fine without, zener diodes are used for this)
fullsquare@awful.systemsto
News@lemmy.world•Trump orders Pentagon to redesign US aircraft carrier to use steam catapults to launch jets
1·5 days agoNo they don’t, there’s still 4 units one per launcher. Most of problems you mention seems to come from energy storage system. Energy is stored in the flywheels, which requires annoying converter, so chinese variant uses giant set of supercapacitors instead which is just a bit heavier and has less problems with communications interference. Also can be split in many parts and fit in any space you have. Mostly benefit of being designed later. Zero surprises if americans figure it’s better but institutional inertia keeps them using the old one
fullsquare@awful.systemsto
News@lemmy.world•Trump orders Pentagon to redesign US aircraft carrier to use steam catapults to launch jets
2·5 days agoThey don’t actually. Steam catapult is operated with completely separate steam supply, and major design goal of ford class was to remove it so even if pedo in chief wanted, retrofit is physically impossible. That separate steam supply needs extra freshwater because it’s not condensed and recovered. EMALS is much milder on plane and pilot because it’s a big linear motor that gives constant acceleration instead of spike then decreasing like with steam. Efficiency of steam catapult is also dogshit compared to turbine + energy storage system
fullsquare@awful.systemsto
News@lemmy.world•Trump orders Pentagon to redesign US aircraft carrier to use steam catapults to launch jets
5·5 days agoEMALS has been around for over 15 years so naturally trump lost interest
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TechTakes@awful.systems•Stubsack: weekly thread for sneers not worth an entire post, week ending 16th August 2026English
2·6 days agoon balance i’ve been banned on various sites that think i’m not human enough, permanently from mouser and intermittently from a couple of others including startpage (one day total). i guess i’m catching strays because of residential proxies. this must be this disruption ai boosters were waiting for
ah well then yeet that and instead
pip install thefuck







this is how antibodies work