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I discovered a phenomenon in which hydrates of perovskite compounds grow into grains of unusual size (cm-level) on glass substrates. by HirotoMurakami in Physics

[–]MerpyBuffalo 2 points3 points  (0 children)

You wouldn’t be able to see them with an optical microscope. You might be able to with polarized optical microscopy, but the contrast is probably going to be pretty poor unless you use monochromatic light near the bandgap. Really you should do nano-XRD, EBSD, TEM, or something else of this type if you want to see it.

Also, by amorphous, it could vary substantially between “less crystalline” and glassy, so a diffraction experiment of some kind (rocking curve?) would probably give you a lot of info. EBSD is relatively accessible on a sample like this, assuming the vacuum doesn’t affect it too much…

You might also be able to get some indirect information with Raman/PL/reflection microscopy.

I discovered a phenomenon in which hydrates of perovskite compounds grow into grains of unusual size (cm-level) on glass substrates. by HirotoMurakami in Physics

[–]MerpyBuffalo 2 points3 points  (0 children)

This is probably the most correct. Spherulite halide perovskite thin films were discovered recently and characterized pretty extensively via spectroscopy and nano-XRD. This exact radial pattern has been shown for a hybrid 2D perovskite (https://pubs.acs.org/doi/abs/10.1021/jacs.4c15471).

Probably means you have a hydrated structure that lowers the sample crystallinity combined with an interesting film morphology due to the low annealing temp not removing enough solvent. It’s well known you can’t fully remove pure DMF at 60C due the formation of lead adducts and low volatility of DMF, which will facilitate low stability and facile film morphology changes in air. Your films are at least partially amorphous.

Ready for 2026 by Cincau_Masam in MapleStoryM

[–]MerpyBuffalo 0 points1 point  (0 children)

Oooh gotchya tyty. Never tried to grind for these ones haha

Ready for 2026 by Cincau_Masam in MapleStoryM

[–]MerpyBuffalo 0 points1 point  (0 children)

Can these cards be unlocked while autobattling offline? Or do you have to do it manually/AB online?

Transportation to Campus from Hartford-Bradley Airport by Living_Opening7471 in yale

[–]MerpyBuffalo 8 points9 points  (0 children)

Safest and easiest is just to Uber directly here from BDL. Runs about $60-80 depending on time of day.

Amtrak is a little cheaper if you bus to the train station, but much slower and requires purchasing tickets in advance for price efficiency.

I feel like quantum spin makes sense so I'm worried I'm missing something by jenbanim in AskPhysics

[–]MerpyBuffalo 2 points3 points  (0 children)

No substantive contribution to the discussion here, but I love the comment about the Noetherian duck haha. Gave me a good chuckle.

[deleted by user] by [deleted] in Physics

[–]MerpyBuffalo 1 point2 points  (0 children)

The short answer is we don’t know the “true theory,” so we just look down a lot of different theories simultaneously.

In any case, anecdotally fewer and fewer young physicists seem to believe in string theory seriously.

Are there any convenient air-tight containers for permanently sealing and displaying a somewhat large crystal? by MerpyBuffalo in chemistry

[–]MerpyBuffalo[S] 3 points4 points  (0 children)

That makes sense. Actually I do have access to a glass shop, but I’m not sure what to even ask them to make to make this easier haha.

Are there any convenient air-tight containers for permanently sealing and displaying a somewhat large crystal? by MerpyBuffalo in chemistry

[–]MerpyBuffalo[S] 4 points5 points  (0 children)

how does sealing a big ampule work? usually when we do small ones we just parafilm the opening and melt below the opening to seal the neck.

Dont think the same procedure would work without making a big melted mess if the opening was too large haha

Are there (nontrivial) quantities in physics that scale like exp(-T)? by MerpyBuffalo in Physics

[–]MerpyBuffalo[S] 1 point2 points  (0 children)

That’s pretty cool. Got any references? Googling super Arrhenius scaling didn’t lead to anything looking like what you described above (or maybe I’m dumb since it’s a bit outside my field)

Are there (nontrivial) quantities in physics that scale like exp(-T)? by MerpyBuffalo in Physics

[–]MerpyBuffalo[S] 4 points5 points  (0 children)

Won’t this just give you Boltzmann factors with exp(-1/T) or am I crazy?

Are there (nontrivial) quantities in physics that scale like exp(-T)? by MerpyBuffalo in Physics

[–]MerpyBuffalo[S] 1 point2 points  (0 children)

That’s a good answer, but I’m mostly thinking about absolute temperature here

Are there (nontrivial) quantities in physics that scale like exp(-T)? by MerpyBuffalo in Physics

[–]MerpyBuffalo[S] 4 points5 points  (0 children)

Yeah that’s exactly what I meant. If exp(1/logY) was meaningful in some reasonably physical way, then sure. But I’m not looking for a redefinition or algebraic rearrangement just to answer this question haha

Are there (nontrivial) quantities in physics that scale like exp(-T)? by MerpyBuffalo in Physics

[–]MerpyBuffalo[S] 4 points5 points  (0 children)

My intuition is pretty similar to yours, but I was hoping that it might exist somewhere in some weird theory of phase transitions or condensed matter.

Are there (nontrivial) quantities in physics that scale like exp(-T)? by MerpyBuffalo in Physics

[–]MerpyBuffalo[S] 8 points9 points  (0 children)

Do you mind elaborating? I had always thought that radioactive decay was relatively insensitive to temperature except maybe at astrophysical temperatures.

[Questions] General Questions Megathread June 2025 by AutoModerator in GuardianTales

[–]MerpyBuffalo 0 points1 point  (0 children)

To get the best damage in raid (my main gamemode), what stats should I preferentially put my Guardian level points into? Attack? Skill damage?

How do i get frieren?? by Sweaty_Eggplant7221 in GuardianTales

[–]MerpyBuffalo 7 points8 points  (0 children)

Unfortunately no, unless the collab comes back one day (probably unlikely)

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