barsoap

@barsoap@lemm.ee

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⁨Comment⁩ on ⁨EU disease agency considers quitting Elon Musk’s X over disinfo⁩ ⁨⁨2⁩ ⁨days⁩ ago⁩:
The kicker is that in any member state that’d be politics trying to bury something in procedure, while on the European level it’s the only way to get anything done. Leave out a step and the thing just fizzles because noone even knows about it.

…not, I mean, quitting X. But in general.
⁨Comment⁩ on ⁨Mastodon Says App Downloads Up 47% on iOS Amid Twitter Exodus⁩ ⁨⁨5⁩ ⁨days⁩ ago⁩:
lemm.ee currently even proxies links to external images, sunaurus identified some issues with it, storage wasn’t one of them. Storage requirements are going to look quite differently if you’re lemmynsfw.com but it’s not particularly hard to get enough donations to afford a couple extra TB a month. Much, much cheaper than paying admins an actual wage where I think the actual scaling pain will be.
⁨Comment⁩ on ⁨Mastodon Says App Downloads Up 47% on iOS Amid Twitter Exodus⁩ ⁨⁨5⁩ ⁨days⁩ ago⁩:

hink about how angry people get at the idea of tipping for ANYTHING and then wonder how many of those are throwing significant cash at your favorite lemmy or mastodon instance per month.

a) it’s not significant amounts, it’s quite cheap, per user, to run lemmy, e.g. lemm.ee is one of the bigger instances and costs 200 Euro a month, b) tipping 20% on a bill that doesn’t even include any service is not the same as donating to a service you like. This is more like a patreon which doesn’t lock anything for non-donating users.
⁨Comment⁩ on ⁨Anon questions our energy sector⁩ ⁨⁨6⁩ ⁨days⁩ ago⁩:
OMG yes I said “blast furnace to reduce steel”. I meant “to reduce iron [to produce steel]”. Obviously: What else would you use hydrogen for in a blast furnace?

But “reduce steel” is still actually correct for recycling steel: Scrap has rust on it so it also needs to be reduced. Which you would’ve realised instead of trying to turn this into a silly gotcha if you knew what you were talking about.
⁨Comment⁩ on ⁨Anon questions our energy sector⁩ ⁨⁨6⁩ ⁨days⁩ ago⁩:
What makes iron is the lack of O in Fe~3~O~4~ (that’s magnetite, other ores are similar). Carbon for alloying is not an issue it can be easily covered by biomass, you smelt the magnetite by combining it with hydrogen resulting in iron and (very hot) water, no carbon involved, then you add carbon, something like 2% thereabouts, to get steel. Add too much and you get cast iron. The overwhelming majority of coke used in the coke process is not used for alloying, but smelting and reducing the iron. That part of the steel making process is completely decarbonised, and the carbon that’s used in alloying, well, it’s not in the atmosphere is it.

You can rip the oxygen off iron with electricity but that’s less energy-efficient than taking a detour via electrolysis. It’s different with aluminium, there using electricity directly is more efficient.

Sad to day I now understand your point of view. Natural gas wins.

If you think that’s what I’m saying then no, you don’t understand my POV.
⁨Comment⁩ on ⁨Anon questions our energy sector⁩ ⁨⁨6⁩ ⁨days⁩ ago⁩:
In essence, yes. And we need the hydrogen/ammonia/methane/methanol/whatever anyway to do chemistry with, so we’ll have to produce them in some renewable way anyway, and at scale. Using them in peaker plants is only a fraction of the total use.

Even with fusion up and running we’re going to do hydrolysis. You can run a car on electricity, or domestic heating, also aluminium smelting, but not a blast furnace to reduce steel nor a chemical industry. Hydrogen, in one form or another, is the answer to all of those things. As things currently stand the market is in its infancy but the first pipelines are getting dedicated to hydrogen, the first blast furnaces made for operation with hydrogen are up and running… and the hydrogen mostly comes from fossil gas. It’s a bit of a chicken and egg problem you need demand to have supply but you need supply to have demand, so kick-starting the demand side by supplying it fossil hydrogen makes a lot of economical sense, that means that the supply investments can go big and be sure that they’ll have customers from day one.
⁨Comment⁩ on ⁨"What Is Your Dream for Mozilla" - Mozilla is doing a survey, questions include "What is most important to you right now about technology and the internet?"⁩ ⁨⁨6⁩ ⁨days⁩ ago⁩:
Yes it’s a good thing and it’s more locally-running stuff that they’re investigating. Things like fuzzy search on your history, tl;dr bot, etc.

Malware site detection would be another idea, though they of course already have a non-local solution for that. Maybe, we do have to come full circle after all don’t we, a model that can give you an estimation of how likely it is that the page you’re looking at is AI slop.
⁨Comment⁩ on ⁨"What Is Your Dream for Mozilla" - Mozilla is doing a survey, questions include "What is most important to you right now about technology and the internet?"⁩ ⁨⁨6⁩ ⁨days⁩ ago⁩:
No, it isn’t. It’s integrated into the browser, and running locally.

I’m just saying that if you a) want translation and b) privacy then you want c) AI in firefox. Because, you know, translation models are AI tech, figures that natural language is too fuzzy to do in other ways.
⁨Comment⁩ on ⁨"What Is Your Dream for Mozilla" - Mozilla is doing a survey, questions include "What is most important to you right now about technology and the internet?"⁩ ⁨⁨6⁩ ⁨days⁩ ago⁩:
Not just building it’s shipping by default. That is, language detection and code that displays a popup asking you whether you want to download the actual translation model is shipping by default. Just over ten megs per language pair.
⁨Comment⁩ on ⁨"What Is Your Dream for Mozilla" - Mozilla is doing a survey, questions include "What is most important to you right now about technology and the internet?"⁩ ⁨⁨6⁩ ⁨days⁩ ago⁩:
The result of the whole thing was project quantum. Firefox includes lots of Rust code. Servo was never intended to be a product, it always was a research platform.
⁨Comment⁩ on ⁨"What Is Your Dream for Mozilla" - Mozilla is doing a survey, questions include "What is most important to you right now about technology and the internet?"⁩ ⁨⁨6⁩ ⁨days⁩ ago⁩:
You’re free to send your data to google or deepl instead of using Firefox’s included AI translate. You know, privacy, no AI in the browser, choose one.
⁨Comment⁩ on ⁨Anon questions our energy sector⁩ ⁨⁨6⁩ ⁨days⁩ ago⁩:

When’s that going to happen? Right after the green hydrogen revolution?

Already happening, on a small (but industrial) scale. You can buy that stuff off the shelf, but it’s still on the lower end of the sigmoid. Most new installations right now will be going to Canada and Namibia, we’ll be buying massive amounts of ammonia from both.

Sorry, I didn’t think someone would deny the existance of dunkelflautes. It’s currently happening in Germany.

Yes and elsewhere in Europe the wind is blowing. Differences in solar yields are seasonal (that’s what those three months storage are for, according to Fraunhofer’s initial plans), but reversed on the other side of the globe, and Germany would be better situated to tank differences in local wind production all by itself if e.g. Bavaria didn’t hinder wind projects in their state. The total energy the sun infuses into the earth does change a bit over time, but that’s negligible. In principle pretty much zero storage is needed as long as there’s good enough interconnectivity.

…meanwhile, we’ll probably have the first commercial fusion plant in just about the mean construction time of a fission plant.
⁨Comment⁩ on ⁨Anon questions our energy sector⁩ ⁨⁨6⁩ ⁨days⁩ ago⁩:

Wouldn’t it be better to go fossil free. Given, you know, climate change.

Gas can be synthesised and we’re going to have to do that anyway for chemical feedstock. Maintaining backup gas plant capacity is cheaper than you think, they don’t need much maintenance if they’re not actually running.

That’s physically impossible for a place the size of Germany, much less Europe.

Unless we use a different technology, that is not renewables + storage?

It’s not technology it’s physics. It is impossible for there to be no wind anywhere, at least as long as the sun doesn’t explode and the earth continues to rotate and an atmosphere exists. If any of those ever fail electricity production will be the least of our worries.

Technology comes into play when it comes to shovelling electricity from one end of the continent to the other and yes we need more interconnects and beefier interconnects but it’s not like we don’t know how to do that, or don’t already have a Europe-wide electricity grid. The issues are somewhere in between NIMBYism regarding pylons and “but we don’t want to pay for burying the cable earthworks are expensive”.
⁨Comment⁩ on ⁨Anon questions our energy sector⁩ ⁨⁨6⁩ ⁨days⁩ ago⁩:
The watthours is what gas is for. Germany’s pipeline network alone, that’s not including actual gas storage sites, can store three months of total energy usage.

…or at least that’s the original plan, devised some 20 years ago, Fraunhofer worked it all out back then. It might be the case that banks of sodium batteries or whatnot are cheaper, but yeah lithium is probably not going to be it. Lithium’s strength is energy density, both per volume and by weight, and neither is of concern for grid storage.

Imagine bridging even a short dunkelflaute of 2 days.

That’s physically impossible for a place the size of Germany, much less Europe.
⁨Comment⁩ on ⁨The Great Migration to Bluesky Gives Me Hope for the Future of the Internet⁩ ⁨⁨1⁩ ⁨week⁩ ago⁩:
Chances are that any new large commercial platform will enshittify, sooner or later prompting another exodus, and each exodus will at least have some people choosing a community platform.
⁨Comment⁩ on ⁨Domination⁩ ⁨⁨1⁩ ⁨week⁩ ago⁩:
I mean, sure, that’s a domination relation but it doesn’t really get at the core of domination, either, but tells us where dominance fits in the larger context. The core idea is much easier: f : A -> X dominates g : B -> X if there is an h : B -> A such that g = f . h. That is, if there’s a way to turn potato mash into food, and one to turn sliced potatoes into food (say, a hot pan with some oil) then frying mash dominates because there’s a way to turn potato slices into mash, but none to turn mash into slices. It can also be the case that two functions dominate each other, e.g. when you look at cooking tea with a teabag, and without a teabag: As bagged tea can be unbagged, and unbagged tea bagged, both dominate, in fact, they’re equivalent.
⁨Comment⁩ on ⁨Know Nut November⁩ ⁨⁨2⁩ ⁨weeks⁩ ago⁩:
Mostly they’re dried, including pod, the rest is genetics.

They are botanically nuts, though: They are indehiscent, meaning they do not open to release their seeds. They’re also fruit. It’s e.g. pine nuts which aren’t nuts.

I guess making a distinction, in the culinary context, between nuts and peanuts makes sense because allergy considerations, legumes are a class of their own there.
⁨Comment⁩ on ⁨Tiger Predators⁩ ⁨⁨2⁩ ⁨weeks⁩ ago⁩:
Tigers are territorial and solitary but quite social, they don’t usually get into fights when they meet, that only happens when they have an actual territorial conflict because there’s too many tigers on too little land. They’re perfectly fine with others visiting their prowling grounds, they might even hunt together, just don’t overstay your welcome. Actually not that terribly different from how humans treat their houses.
⁨Comment⁩ on ⁨Know thy enemy⁩ ⁨⁨2⁩ ⁨weeks⁩ ago⁩:
Everything that comes out of a petrochemical plant can be made without oil, in fact BASF had recipes in place for decades now and is switching sources as the price shifts. Push come to shove they can produce everything from starch. It’s also why they hardly blinked when Russia turned off the gas.

The carbon that actually ends up in steel is a quite negligible amount (usually under 1%, over 2% you get cast iron), you can get that out of the local forest, and to reduce the iron hydrogen works perfectly, the first furnances are already online.
⁨Comment⁩ on ⁨your mom falls significantly faster than g⁩ ⁨⁨2⁩ ⁨weeks⁩ ago⁩:
Quick intuition boost for the non-believers: How do things look like if you’re standing on the surface of the bowling ball? Are feather and earth falling towards you at the same speed, or is there a difference?
⁨Comment⁩ on ⁨your mom falls significantly faster than g⁩ ⁨⁨2⁩ ⁨weeks⁩ ago⁩:
As to “what’s falling faster” my point is still that everything’s falling at the same speed, because the only non-arbitrary reference point to measure things from is the centre of gravity of the whole system, earth, feather, ball, all of them together.

Well it may still be arbitrary, but at least it’s not geocentric or feathercentric or ballcentric. All three can be unhappy with the choice which means it’s fair.

Flip that reference point to the earth though and yes the ball is approaching ever so slightly faster than the feather (side note: is our earth spherical or are we at least making it an oblong?). Flip it to the ball and the feather is falling a lot slower towards it than the earth is. Which is probably how I should have started explaining this: The mass difference between feather and earth with respect to the ball is so massive that it actually makes quite a difference while between feather and ball wrt. earth it’s negligible.
⁨Comment⁩ on ⁨your mom falls significantly faster than g⁩ ⁨⁨2⁩ ⁨weeks⁩ ago⁩:
I understand and agree with red’s math, and I said no such thing as you put into quotation marks there.
⁨Comment⁩ on ⁨your mom falls significantly faster than g⁩ ⁨⁨2⁩ ⁨weeks⁩ ago⁩:
Clarity of presentation is never a trivial matter. You can be right all you like if you don’t get it across then it will be for nought but inflating your own ego.
⁨Comment⁩ on ⁨your mom falls significantly faster than g⁩ ⁨⁨2⁩ ⁨weeks⁩ ago⁩:
You said it was movement, aka change in position over time, not acceleration, or you would have said “x will accelerate at”, not “earth will move at”. I already explained why it’s questionable as a term of acceleration.

And this could’ve been over after a single comment of you saying “oh, yeah, misspoke”. Your math checks out, that’s not the issue here, it’s your presentation that went all haywire.
⁨Comment⁩ on ⁨your mom falls significantly faster than g⁩ ⁨⁨2⁩ ⁨weeks⁩ ago⁩:
That’s not what you wrote, and not what I complained about. You wrote:

BUT earth will move with gM/m1

where it was previously established that m1 and M are masses, and I interpreted g to be G (Newton’s gravitational constant) instead of g as in “gravitational acceleration caused by earth” because… well, I’m not actually sure. The whole thing is already a mess of capitalisation but more importantly then it’d be acceleration, not movement, worse, the specific properties of the earth are included twice (once in g, then in one of the mass terms).

the fact that i wasted my time on low iq person like you

Maybe you should spend less time on insulting people and more on communicating your thoughts clearly.
⁨Comment⁩ on ⁨your mom falls significantly faster than g⁩ ⁨⁨2⁩ ⁨weeks⁩ ago⁩:

you idiot i was talking about accelwration,

Then why did you say “move” instead of “accelerate”. And the units don’t match acceleration, either. Best I can tell it’s some fraction of a term. If you want it to be an acceleration then you’re missing a squared distance, and if you want it to be acceleration, why are both mass terms in there.

For someone who throws around things like “that’s non-technical brainrot” damn is your prose fuzzy.
⁨Comment⁩ on ⁨your mom falls significantly faster than g⁩ ⁨⁨2⁩ ⁨weeks⁩ ago⁩:
It’s not nonsense when it makes people understand, buddy. And don’t get all “oh be technical” on me when you say things like “earth will move with <something with the same units as G>”. Something that’s definitely something, but not m/s.
⁨Comment⁩ on ⁨your mom falls significantly faster than g⁩ ⁨⁨2⁩ ⁨weeks⁩ ago⁩:

BUT earth will move with gM/m1

No. Multiplication is associative, you can switch the masses around as you please, nowhere in the formula does it say “the greater mass” or “the lower mass” you could just as well re-arrange the formula and come up with “earth moves with gm1/M”. Last but not least there’s only one force acting on both objects… and gM/m1 is neither a speed nor a force. G * 100kg / 20kg is 5G. Measured in Nm²/kg² which is the same we started with because the two mass units cancel each other out.

They both fall towards their shared centre of gravity. It’s this “the earth revolves around the sun” thing again, no it doesn’t, they both revolve around their shared centre of gravity (which, yes, is within the sun but still makes it wobble). That centre is very far away from the ball and very close to the earth and both are moving at the same speed towards it (because acceleration doesn’t depend on mass), blip to the next frame of the simulation now the centre of gravity moved towards the ball, next frame still closer to the ball, that is the reason both reach it at the same time, not because one is faster than the other.

…or so it would be, if the shared centre of gravity of ball and earth wouldn’t lie within the earth so they don’t actually both reach it, the earth is in the way, the rest of the acceleration is turned into static friction: Because they both are still falling even when in contact.
⁨Comment⁩ on ⁨Sweden, Norway rethink plans for cashless societies over fears that fully digital payment systems would leave them vulnerable to Russian security threats⁩ ⁨⁨3⁩ ⁨weeks⁩ ago⁩:
You have a legal right to shelter, yes. How is that controversial it’s a human right.
⁨Comment⁩ on ⁨Sweden, Norway rethink plans for cashless societies over fears that fully digital payment systems would leave them vulnerable to Russian security threats⁩ ⁨⁨3⁩ ⁨weeks⁩ ago⁩:
In Germany any EU resident has a right to a basic account, in case you’re homeless you should have an address because you’re in a shelter, if you insist on sleeping rough (or the municipality is just too fucked up, happens in places) you can give the address of a social work organisation (those are all over also doing debtor counselling and a lot of other stuff).

Only valid reason for a bank to refuse basic business is if you tried to defraud them. They don’t have to give you a credit line, but they do have to accept your money, store it, and let you wire it (incl. POS payments etc).