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AnonStoleMyPants

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AnonStoleMyPants ,

Of course it is not. People are just meming, including up voters.

AnonStoleMyPants ,

Second Maternal Orgy.

Homie Orgies Incorporated.

AnonStoleMyPants ,

What drives the choice of method?

Not all methods can pick up on all materials, and some methods are easier to use or faster or more accurate or you can so multiple things at once or probes something else than just what the material is.

For instance, EDX is a method where you hit the sample with an electron beam from a scanning electron microscope (SEM) and measure emitting x-rays. You can probe lots of elements with this, but not the very lightest of elements (skipping couple at the beginning of the periodic chart, don’t remember which). It is very accurate in terms of spectra and because it is an electron beam it has very high physical resolution. However, you need to use pretty high energies which can destroy or modify the sample when doing the scans. Also, you need an electron microscope with the capability, it is common to skip it and use the money for improving the electron microscope in other means. And then you need to put your sample in a high vacuum, which might be a problem. It is not exactly fast and SEMs are used a lot so the tool might be booked a lot, just a practical issue but a very real one. Also SEM costs hundreds of thousands of euros or millions. Nor cheap.

XRD is a method where you blast your sample with x-rays ans look at how they diffract from it. You can use it to probe which materials your sample is made of but you also get information about its crystal structure and things like distance between two atomic layers (very accurately). Issues are for instance that you might need to grind your sample into dust basically to do the measurement (it only probes the very surface of the sample). And it is not a high resolution method in the physical dimensions, you can tell what the entire sample is made of but not really what is this specific spot made of.

Then methods like Raman and infrared spectroscopy use lasers to excite molecules on the sample and then look at what the sample spews out. They both can be used to know what materials the sample is made of (at the laser spot), but not everything is “Raman active” or “infrared active”. Like I mentioned, they probe molecules and not necessarily individual atoms. Essentially they look at how molecules vibrate and rotate and how the electron cloud around the atoms stretch and move when being hit by lasers. EDX might tell you a material is made of carbon 12, but how is it arranged? Amorphous carbon (no crystal structure)? Buckyballs (small clusters of couple tens of carbon atoms in a ball)? Carbon nanotubes (sheet of carbon rolled into a tube)? Graphene (2D sheet of carbon aroms)? Raman and/or IR spectroscopy can tell you that. Now to be fair, EDX can also differentiate between those (or the electron microscope can as a whole) but it will have though time telling how well the atoms are arranged (missing atoms, doping, extra atoms etc).

Of course you can just take white light (usually maybe 300-1000nm or so), shine the sample with it and look at the spectra. Either transmissed light (light that goes through) or reflected. Then you can run into issues like, well most stuff doesn’t let white light through that easily for transmission, and not all samples reflect that well. Here you have looooots of different wavelengths so just making that wide frequency band well is difficult, hence it is usually limited to around the visible spectrum, and this also is a problem in spectral resolution (tends to be lower). And all frequencies interact with the sample a bit differently, so here afaik you don’t really get any more info that literally what the sample reflects / passes through. So no crystal structure or anything fancy.

if elements drive the colors, how do you parse out individual elements from a compound?

You might not be able to. What you might see is how many percent of X and Y and Z you have and from this you could determine what type of a compound you have. You would probably start to look at phase diagrams of those elements and from there you might be able to determine what compound you have.

Then you could also run into issues with spectral resolution and non-idealistic measurement conditions. For instance you might see a peak of spectra at some wavelength, but the peak is not a single line, it probably looks like Gaussian curve or Lorentzian. Now you can have multiple peaks very close by but because of the resolution of the system isn’t high enough to see them as individual peaks, you would see one big peak. To get around this you probably need to do some math and try to fit multiple peaks into your measurement data and see what peaks make up the big boi peak.

Is there a consistent pattern to how the emission lines relate to what the element looks like before going through the prism?

Pretty much yes. The theoretical peaks are what they are but your measurement data is noisy (like previous example). Your electrons are not at the same energy. You get secondary electrons that can mess up things. Your laser isn’t at one frequency and might change a bit from measurement to measurement. If you need accurate results you might need to make some calibration steps. Like, measure something you know is 99.999% copper, then adjust the setup so that it identifies it correctly. For lasers you should measure the frequency and adjust the results based on that. You might also need to measure like spectrum of a xenon lamp that has very well known, strong peaks, and adjust according to that.

Is there a resource that shows examples of emission lines along with the visible color?

There are lots of books on spectroscopy of different materials that work as reference. NIST also has a database www.nist.gov/pml/atomic-spectra-database but I have not used it myself. But usually the tool itself has a database that you just query from and it tells you.

AnonStoleMyPants ,

Waaaaaait I’ve never thought of using it for podcasts. Been using Pocket Cast but maybe I should take a look.

AnonStoleMyPants ,

Probably about not letting AI decide when to pull the trigger but do everything else, and then have a human press the button to do the actual firing.

AnonStoleMyPants ,

Well I think they could say that and the unit would then respond with x possible targets and the human operator would need to give the ultimate go-ahead. Point being that it would be bad if you have a bot with a machine gun and you tell it to kill everyone hostile with a gun in this area and it blasts that 13 yo kid with a fucking stick. They could identify targets, but a human would have to be the one okaying them.

If you lose communications then you’re shit out of luck. Though I guess you would have some backup system like if comms fail go back to base or hunker down etc and wait.

AnonStoleMyPants ,

Yeah. Had this been an article I would’ve read / skimmed it. A video? Fuck that.

AnonStoleMyPants ,

Wanna bet it has something to do with shoving more ads into our eyeballs? No, no, let me rephrase that: wanna bet it has everything to do with shoving more ads into our eyeballs?

AnonStoleMyPants ,

I like to think it like this: a million is a decent vacation. A billion is a generation.

AnonStoleMyPants ,

People always mention nextcloud when it comes to syncing for e.g., Obsidian, but how do people use it with mobile? They never seem to actually use the local storage for anything, meaning you can’t map a local folder for use in the application (assuming it does not have the option to use cloud services). I know thay syncthing does use actual local folders, but doesn’t it use a fuck-ton of battery? I remember trying it a few years back and just could not due to it being a battery hog. Also tried the fork which helped but not by much.

I wish I could just use rsync but nooooo. Yes yes rooting is “possible”, which might just break shit or you need to use some masking to hide root from application to and jesus christ why the fuck is everything so annoyingly locked down god dammit. Rant over.

Havant tried termux + rsync tho.

AnonStoleMyPants ,

Oh yeah if it is integrated into the application then it’s much easier for sure.

AnonStoleMyPants ,

Really? Hmm interesting. Maybe I should take another peek at syncthing. Default settings or have you limited the sync frequency?

AnonStoleMyPants ,

Interesting, thanks!

AnonStoleMyPants , (edited )

The materials that do the absorption are not effective across the entire wavelength spectrum of the sun. They can only absorb at a certain wavelength range, but the spectrum range of the sun is very wide.

Edit. Also other reasons, like recombination rate where the photon hitting the panel generates an electron-hole pair which is then collected and used for evegy, but electrons and holes tend to want to recombine, after which we cannot use them for evergy. We want this rate to be zero, but it never is, it is a probabilistic process. So even if you can absorb everything, you can’t utilise everything you absorb.

AnonStoleMyPants ,

This is interesting but issue with Perovskites is not efficiency per say, but it is degradation. It is a cool tech but their lifetime is measured in months and not decades. Here’s one study for instance. Perovskites might be where the tech is going but there are still major hurdles to overcome.

AnonStoleMyPants ,

How’s the pvp in ffxiv?

AnonStoleMyPants ,

Yeah I’m aware of gw, just wondering about ffxiv. I always got the idea in my head that pvp doesn’t really exist in that game, hence the question.

AnonStoleMyPants ,

Thanks, maybe there is something there for pvp then.

AnonStoleMyPants ,

Don’t sweat it.

I remember looking into this as well like a year ago. I also found the same info and started to look into ssds, consumer and enterprise grade and after all that I realised that most of it is just useless fuzzing about. Yes it is an interesting rabbit hole in which I spent a week probably. In the end one simple thing nullifies most of this: you can track writes per day and SSD health. It is not like you need to somehow made a guess when the drives fail. You do not. Keep track of the health and writes per day and you will get a good sense of how your system behaves. Run that for 6 months and you are infinitely wiser when it comes to this stuff.

AnonStoleMyPants ,

Good luck!

AnonStoleMyPants , (edited )

I’m confused. The article states that the monthly feed is to remove ad targeting, which I assume means no ads. It does NOT say that they won’t collect data on you, just literally that they won’t use the data they collect to give you ads.

So this has nothing to do with opting out of data collection, just opting out of ads? That’s the feeling I get from the article.

Edit. Well I guess I’m not confused, this is also the wording the Meta’s post uses and definitely says nothing about opting out of data collection.

BTRFS and moving /home to subvolume, in need of a sanity check.

So I installed Debian 12 with btrfs and apparently it only uses a single subvolume rootfs. I would like to have my /home in a separate subvolume (and possibly /var too I guess) and with a flat subvolume structure. I started figuring out on how to do it and I feel like I’m not entirely sure yet so I need a sanity check....

AnonStoleMyPants OP , (edited )

Ah right yes, that makes sense. Edited.

AnonStoleMyPants OP ,

Okay good! Yes the @ seems to be more common and necessary for Timeshift, but I think I’ll just keep this and use Snapper or something.

AnonStoleMyPants OP ,

Could you just not include home in the automatic snapshots?

AnonStoleMyPants ,

What the heck even is the point of using email for this?

AnonStoleMyPants ,

Weird.

AnonStoleMyPants ,

Fuck I kept reading “Android Auto” for some reason and kept wondering why the hell would people need to read pdfs while driving.

AnonStoleMyPants ,

Have been using Niagara launcher for a while. Quite a different feeling than normal launcher but really great. You can swipe up from any app icon to either open a folder of more apps or attach widgets to a small pop up screen. Super handy and I love it.

AnonStoleMyPants ,

Never had a backup system, but then again I haven’t used Linux that much. Though considering installing Debian again. Last time I looked at btrfs which seemed dope but there was something weird about it which made me ditch it. Maybe it was that I don’t know that much about Linux and configuring automatic backups seemed difficult.

AnonStoleMyPants ,

I triggered it while driving when I tried to increase volume on my phone through the pocket. Accidentally pressed power button and almost shat myself due to rhe 911 call and siren sound through the car radio.

What is something (feature, modes, settings...) you would like to see become a standard in video games?

I’ve been thinking about making this thread for a few days. Sometimes, I play a game and it has some very basic features that are just not in every other game and I think to myself: Why is this not standard?! and I wanted to know what were yours....

AnonStoleMyPants ,

And to rewatch if you accidentally dismiss the cutscene.

AnonStoleMyPants ,

The bot skips an important point. The site looks really close to the genuine site, only difference being “ķeepass dot info” and not “keepass”. Definitely easy to miss.

AnonStoleMyPants ,

Nobody has mentioned Everything by Void Tools. Find any file in your computer blazingly fast. Make shortcuts to only search certain folder (e.g., search for “notes: python” to find file “python” in your notes folder. Also works for network drives. Some functionality needs admin privileges but most work fine without (hellooo work computer!).

Combine this with Run (Power Toys) or Keypirinha or some other launcher and you can find all files and start all programs with a quick shortcut + short text.

More supercharging by using Fanzy Zones by Power Toys and combining it with AHK for easily controlling virtual desktops and having all windows open where you want them.

AnonStoleMyPants ,

Just the ability to search all files and start all programs via shortcut + text. I feel like they complement each other nicely. I feel like Run is more about starting applications, and not about finding a particular file, whereas Everything is for finding stuff.

AnonStoleMyPants ,

Ohh interesting! I’ll take a look. Open source is a nice plus, though to be fair so it Power Toys.

Yeah I used Keypirinha for quite a while too (and something else before that but can’t remember), then when I found out about Run (Power Toys) then I started using it as it did everything I needed and I already use Power Toys anyway.

AnonStoleMyPants ,

You can enable indexing and it works a lot better, but somehow still is way inferior to Everything.

AnonStoleMyPants ,

Referring to this thing from a billion years ago. Glorious.

AnonStoleMyPants ,

Is that weird somehow? You like a thing. Then the thing changes into something worse but there is a paid version of the thing which is still good. You decide whether you liked the thing enough to spend x amount of money on it.

AnonStoleMyPants ,

Lmao that website is terrible. Doesn’t even tell anything what the app does just gives a link to apk in github. Also github page doesn’t explain anything.

AnonStoleMyPants ,

Bad troll is bad.

AnonStoleMyPants ,

Man, what a fucked up story. I hope she gets massive reparations from this and hopefully this will get big enough to do some actual change. But I doubt that.

AnonStoleMyPants ,

I used to use syncthing but got annoyed by it drawing sooooo much battery from my android phone. Tried the fork and got it down a bit but kt was just too much in the end.

AnonStoleMyPants ,

I’m just switching from TiddlyWiki to Obsidian lol. Have not looked at Logseq though.

AnonStoleMyPants ,

Kmb. If it is nor implemented well in the game I just skip the game.

AnonStoleMyPants ,

Try freezing it. Makes the texture a lot different.

AnonStoleMyPants ,

Yeah same here. I like fake meat. I mean, if it tastes good and has no animal parts in it, it goes into my mouth. It’s not that complicated.

AnonStoleMyPants ,

Rsync can do this.

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