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Re:Accidentally discovered nanostructured material passively... by wenc on Monday May 26, 2025 @01:47PM (#44099740)
It's research-in-progress, but I think the promise is slightly different from dehumidifier bags (also in other parts of the world, Thirsty Hippos [1]) which are single use.

You're correct in that: (1) it doesn't break the law of physics; (2) to remove the droplets, you still need energy. But it sounds like if the droplets are moving to the surface, the energy needed to release the droplets could be far lower than most active dehumidification methods (e.g. Peltier junctions).

[1] Thirsty Hippos -- which are very effective in small spaces.

https://www.amazon.sg/Thirsty-Hippo-Dehumidifier-Moisture-Ab...

Basically a supercharged silica gel.

Re:Accidentally discovered nanostructured material passively... by throwanem on Monday May 26, 2025 @02:17PM (#44100059)
Probably a small piezo junction could be used to provide a solid-state vibrator for releasing water from a proportionately considerably larger area of the material, or at larger scales perhaps a technique similar to the ultrasonic sensor cleaners built into interchangeable-lens cameras.
Re:Accidentally discovered nanostructured material passively... by dieselerator on Monday May 26, 2025 @03:05PM (#44100530)
Do you mean like an ultrasonic humidifier[1]?

[1] https://www.amazon.com/Ultrasonic-Humidifiers/s?k=Ultrasonic...

Re:Accidentally discovered nanostructured material passively... by throwanem on Monday May 26, 2025 @05:08PM (#44101703)
Sure, why not?
Re:Accidentally discovered nanostructured material passively... by jodrellblank on Monday May 26, 2025 @10:32PM (#44103465)
> > Ultrasonic humidifier

> Sure, why not?

https://dynomight.net/air/ estimates that using an ultrasonic humidifier for one night shortens your life by 50 minutes. Getting rid of any ultrasonic humidifiers is his top tip to extend your life cheaply.

Dedicated post on them: https://dynomight.net/humidifiers/

Re:Accidentally discovered nanostructured material passively... by aziaziazi on Tuesday May 27, 2025 @04:29AM (#44104994)
That was a great read. I didn’t know that blog and a quick glimpse at the about page made me bookmarked it. Thanks for sharing.
Re:Accidentally discovered nanostructured material passively... by throwanem on Tuesday May 27, 2025 @06:39AM (#44105622)
I've got some bad news if you live near a road.
Re:Accidentally discovered nanostructured material passively... by jodrellblank on Tuesday May 27, 2025 @09:30AM (#44106805)
I am aware that cars are ruining millions of people's health. That car drivers are privatising the convenience and externalising the harms of driving. That car drivers are a privileged, wealthy, class of people who can literally kill others and walk away without a jail sentence using the defence "I didn't see them":

https://www.cambridge-news.co.uk/news/cambridge-news/cyclist...

https://www.cyclingweekly.com/news/latest-news/driver-carele...

https://veronews.com/2022/08/06/no-jail-time-for-driver-of-c...

many other examples exist

Re:Accidentally discovered nanostructured material passively... by throwanem on Tuesday May 27, 2025 @09:46AM (#44106971)
Sure. And if any particulate emitted by an ultrasonic humidifier could be dangerous enough to shorten your life by ~10% with consistent use or 50 minutes per roughly 8-hour night's sleep as this timecuber of yours appears to claim, then I should think the tire and brake dust burden anywhere near an actively used road would be not just instantly but flagrantly fatal.

I'm aware of the hundred thousand words spent justifying the idea. I will consider reading them once I've been convinced to ignore the result of this trivial - and I do use the following phrase with careful consideration aforethought - sanity check. You'll more likely give the goalpost another kick, though, I suspect.

Re:Accidentally discovered nanostructured material passively... by jodrellblank on Tuesday May 27, 2025 @10:11AM (#44107202)
Explain where I have given any goalposts any kick at all?

From the articles:

> A good heuristic is that an increase of 33.3 PM2.5 μg/m³ costs around 1 disability-adjusted life year. Correia et al. (2013) estimated something close to this from different counties in the US, and more recent data from many different countries confirm this. The most polluted cities in the world have levels around 100 PM2.5 μg/m³.

> When inhaled during an 8-hr exposure time, and depending on mineral water quality, humidifier aerosols can deposit up to 100s of μg minerals in the human child respiratory tract and 3–4.5 times more μg of minerals in human adult respiratory tract. > (Yao et al., 2020)

The amount of particles people breathe in in a night of worst case ultrasonic humidifier use is 8x more than the particle level in the air of the most polluted cities in the world.

Re:Accidentally discovered nanostructured material passively... by throwanem on Tuesday May 27, 2025 @10:21AM (#44107297)
And of course every relationship is both bijective and linear from one data point over an infinite domain.

We could talk about this utter misrepresentation of https://pubmed.ncbi.nlm.nih.gov/23211349/ but why? You haven't read it. You won't. At most you will follow the examples you cite in prooftexting from it like a Southern Baptist inveighing against homosexuality. Kindly find someone else whose time so to waste.

Re:Accidentally discovered nanostructured material passively... by jodrellblank on Tuesday May 27, 2025 @01:10PM (#44108812)
I said, explain where I kicked any goalposts. You haven't, because I didn't. Ad-homs, against the author and against me, pre-deciding your conclusion, refusing to explain your objections, pretending "we could talk about it" while turning to insults to shut down any talking about it.

I get it, you're desperate to appear smart and superior, but arguing that lamely isn't doing it. Of course I'm not going to read your link, try and guess what misrepresentations you're coming up with, make some argument about them and their context in the wider post, only for you to ignore it and post some more nonsense in response. Or engage with you further.

Re:Accidentally discovered nanostructured material passively... by throwanem on Tuesday May 27, 2025 @01:27PM (#44108952)
The link I posted leads to a paper you cited. You've attributed a causal claim to the paper which it not only does not make, but even in its abstract very carefully avoids. If that isn't intentional falsity, then it is certainly a remarkable demonstration of intellectual negligence. In any case "desperate" is not how I would describe the simple fact that I did a better job checking your sources than you have, which by the look of the thing is to say that of the two of us I'm the only one who bothered actually investigating your argument at all.

You could not by now have done more to prove my point that you aren't bothering to actually know anything about what you present yourself able knowledgeably to discuss. Thanks for that. Feel free to embarrass yourself with further flagrant scientism if you like. Enjoy your day.

Re:Accidentally discovered nanostructured material passively... by jodrellblank on Wednesday May 28, 2025 @08:31AM (#44115320)
> a paper you cited.

> You've attributed a causal claim

> your sources

> your argument

> what you present yourself able knowledgeably to discuss.

No, no, no, nope and no. None of these accusations are correct. Feel free to embarrass yourself with lacking basic reading and quoting comprehension; I am not the author of the Dynomight article.

Re:Accidentally discovered nanostructured material passively... by throwanem on Wednesday May 28, 2025 @09:00AM (#44115562)
> I am not the author of the Dynomight article.

Who chose to bring it up? Who chose to insist on its baseless conclusions? Who then demonstrated the inability to defend those conclusions for their total lack of substance?

No, you don't get to represent the source you chose as accurate only until that fails to go your way, and then turn around and try to disclaim it. The embarrassment you now feel is amply earned.

This is what it feels like to have failed to evaluate your sources, argued strenuously in support of total nonsense, and thus made a complete and negligent fool of yourself. You should draw a lesson from that for next time you consider starting a conversation like this one.

You won't; you are too deeply in love with the idea of yourself as a clever person, and you won't dismiss the offense I gave to consider the substance of my remarks. This is a level of predictability I would not be comfortable with in myself. But that, too, is no problem of mine.

You've tried moving the goalposts again, had you noticed? If I let you get away with it, we wouldn't be talking about the factual inaccuracies, facial implausibilities, and ignorant misrepresentations of research, in the source you so uncritically chose, at all...

Re:Accidentally discovered nanostructured material passively... by mass_and_energy on Tuesday May 27, 2025 @05:06PM (#44110681)
This isn't reddit. Please kindly take your anger, ad homonims, and bad-faith arguments back over there. I'm sorry you had a bad day but nobody in this thread caused it, so take a deep breath.
Re:Accidentally discovered nanostructured material passively... by throwanem on Tuesday May 27, 2025 @06:27PM (#44111209)
Sorry, did you have something substantive to add? Your comment history says not, as does that you carefully avoid substance here, preferring to - actually, that is not obvious and makes an interesting question. What is your purpose here?
Re:Accidentally discovered nanostructured material passively... by the__alchemist on Monday May 26, 2025 @02:00PM (#44099892)
Dehudifier bags (e.g. silica, CaCl) aren't single-use. Microwave, then reuse. Some even are color-changing so you know how much moisture they've absorbed.
Re:Accidentally discovered nanostructured material passively... by dotancohen on Monday May 26, 2025 @02:17PM (#44100061)
Microwaving is adding energy, obviously. But the idea here is that the water is recoverable, not that the air is now drier.
Re:Accidentally discovered nanostructured material passively... by the__alchemist on Monday May 26, 2025 @02:30PM (#44100169)
Concur; the idea behind this class of devices is to take advantage of a daily humidity cycle. Whether it's CaCl (absorption) or Silica (adsorption), or the latest lab-designed adsorption surface.

This is a good time to note that I see one of these articles ~once every two years, for the past 10 years. I haven't observed one make it beyond the initial discovery phase.

Re:Accidentally discovered nanostructured material passively... by adnauseum on Monday May 26, 2025 @03:28PM (#44100767)
This, and solutions for male pattern baldness.
Re:Accidentally discovered nanostructured material passively... by dotancohen on Monday May 26, 2025 @03:58PM (#44101104)
By the 24th century, no one will care that you are bald.
Re:Accidentally discovered nanostructured material passively... by Groxx on Tuesday May 27, 2025 @12:34AM (#44103966)
I'm doubtful that President Camacho could've gained so much power without that fantastic coif
Re:Accidentally discovered nanostructured material passively... by chiefgeek on Monday May 26, 2025 @04:42PM (#44101483)
Unless you are Brian “Hairlacher” formerly of the Chicago Bears and shilling hair replacement on Chicago area billboards for years now.
Re:Accidentally discovered nanostructured material passively... by wizzwizz4 on Monday May 26, 2025 @05:28PM (#44101849)
Male pattern baldness is a solved problem, if caught early enough; people just don't usually bother, because the cleanest solution (a 5α-RI) can interfere with sexual function, the "proper" fix for that (low-dose topical application) is time-consuming (so people normally just kludge it with Viagra), and the medicines involved can (indirectly) cause breast growth with prolonged use (unlikely to be a problem with low-dose topical application, and can also be mitigated, although overshooting that mitigation can cause osteoporosis) and are "don't even touch this if you're pregnant" class (they can interfere with fœtal development).
Re:Accidentally discovered nanostructured material passively... by dotancohen on Monday May 26, 2025 @05:37PM (#44101910)
If I have to relinquish my sexual function and grow breasts to reduce baldness, then baldness is not a solved problem.
Re:Accidentally discovered nanostructured material passively... by nagaiaida on Monday May 26, 2025 @06:13PM (#44102157)
out of curiosity, what else would you expect the side effect profile of something mediating the effects of a potent androgen on the body to look like?

it's not estrogen where you would expect breast growth (and can't count on any particular changes to sexual function anyway), it's inhibiting conversion of testosterone to dihydrotestosterone which could have that effect, much like you could spontaneously develop gynecomastia without intentionally fiddling with your hormone balance. calling it unsolved sounds a lot like calling the very many conditions with medications that have more likely and worse side effects equally unsolved.

Re:Accidentally discovered nanostructured material passively... by dotancohen on Monday May 26, 2025 @07:02PM (#44102412)

  > what else would you expect the side effect profile of something mediating the effects of a potent androgen on the body to look like?
I'm a consumer, not a medical professional. I have no expectations based upon detailed familiarity with the underlying biology. Or is the target market for these products medical professionals?
Re:Accidentally discovered nanostructured material passively... by wizzwizz4 on Monday May 26, 2025 @08:43PM (#44102951)
That's what the patient information sheet is for, and why everyone's supposed to have access to a trained medical professional they can freely consult for things like this.
Re:Accidentally discovered nanostructured material passively... by wizzwizz4 on Monday May 26, 2025 @06:21PM (#44102208)
> it's not estrogen where you would expect breast growth

Actually, it is. Reducing DHT levels causes the body to elevate both testosterone and œstrogen levels, via homeostasis. But yeah, it's not a direct effect, and if it's a problem you can twiddle further to make it go away. (You could even do that pre-emptively, though you normally get days and days of warning before breast development actually starts, so I'd advocate the "wait and see" approach.)

Re:Accidentally discovered nanostructured material passively... by tsimionescu on Tuesday May 27, 2025 @02:17AM (#44104357)
A condition is typically considered solved if there are drugs or procedures that cure it and either (a) have extremely rare side effects, or (b) have side-effects that are not as big a problem as the condition they are curing. If a pill existed that cured trh common cold but had a 1% chance of giving you cancer of the throat, people wouldn't proclaim "we've cured the common cold!".
Re:Accidentally discovered nanostructured material passively... by wizzwizz4 on Monday May 26, 2025 @06:17PM (#44102178)
Low-dose topical application doesn't have those problems. Heck, even "dose your entire body" doesn't always lead to sexual dysfunction. (And breast development is a rare side-effect that you'd notice before anything permanent happens, and is easily-addressed.) However, it is topical application of a medicine that can interfere with fœtal development.

Oh, almost forgot: any messing around with sex hormone levels puts you at risk of depression. That's big side effect #3 (though again, many people don't even notice it).

Re:Accidentally discovered nanostructured material passively... by jnaina on Monday May 26, 2025 @08:19PM (#44102849)
Started with topical Minoxidil at age 21. Have (almost) a full head of hair. Now I take it in pill form.

No breasts. And no other issues.

Re:Accidentally discovered nanostructured material passively... by wizzwizz4 on Monday May 26, 2025 @09:17PM (#44103097)
Minoxidil is a sledgehammer: it's got all sorts of other effects (e.g. reducing your blood pressure, beta something something). I wouldn't expect it to cause breast development, though, since it doesn't act on œstrogen receptors.
Re:Accidentally discovered nanostructured material passively... by dotancohen on Tuesday May 27, 2025 @02:25AM (#44104390)
You seem knowledgeable. Where's a safe place to order the topical application from? I'm not in the US or Europe, our doctors aren't going to be bothered with (or knowledgeable about) something like treating baldness.

My Gmail username is the same as my HN username if you prefer to answer in private. Thanks

Re:Accidentally discovered nanostructured material passively... by wizzwizz4 on Tuesday May 27, 2025 @12:07PM (#44108280)
I don't have the savvy for stuff like actually acquiring medicines, unfortunately. You might be able to just buy it from your local pharmacy; but if not, you could check https://hrtcafe.net/ or – as a sibling commenter suggested – look into minoxidil (which works via a different mechanism). I wouldn't recommend minoxidil unless its other effects would be beneficial to you, since I'm leery of things that affect blood pressure and circulation – but I'm not actually trained in this stuff, so maybe it's considered safer.

Finasteride is less potent, but is normally recommended for cis men; not sure why. Theoretically, I'd expect dutasteride to be the better medication (and https://doi.org/10.2147/CIA.S192435 bears that out) if you can get hold of it.

I'd have thought finasteride and dutasteride weren't safe to take if there's a chance of you getting someone pregnant, but https://www.nhs.uk/medicines/finasteride/fertility-and-pregn... says it's fine, actually. https://doi.org/10.4103/0974-1208.86093 goes into more detail on that. (I'm not aware of any other impacts on fœtal development, only the intersex condition mentioned in that article – note that the backdoor pathway described in https://doi.org/10.1002/dvdy.23892 also requires the 5α-reductase enzyme –, but I'd still advise caution.)

Re:Accidentally discovered nanostructured material passively... by dotancohen on Tuesday May 27, 2025 @12:48PM (#44108619)
Thank you. This is an extremely informative comment that gives me many avenues to pursue. Much appreciated.
Re:Accidentally discovered nanostructured material passively... by incompatible on Monday May 26, 2025 @07:58PM (#44102758)
Devices that automate this are readily available, I have one running now. "Desiccant dehumidifiers."
Re:Accidentally discovered nanostructured material passively... by EA-3167 on Monday May 26, 2025 @01:55PM (#44099830)
Those are usually just calcium chloride in a bag, it's very hygroscopic and fairly cheap... also makes a halfway decent de-icer. The issue I see with this thin-film method is that no mention is made of the rate of production at a given relative humidity for a given area of the film.

It's interesting, but without the details (and with a lot of PR speak) I'm skeptical as hell about this in practice.

Re:Accidentally discovered nanostructured material passively... by Aardwolf on Monday May 26, 2025 @06:03PM (#44102102)
If something breaks the laws of physics it simply means the laws of physics were incomplete, so we update them and now it no longer breaks them
Re:Accidentally discovered nanostructured material passively... by danaris on Monday May 26, 2025 @07:24PM (#44102564)
However, if something claims to break the laws of physics, 99 times out of 100, it simply means that either a) the person making the claim missed something, or b) the person making the claim is lying.
Re:Accidentally discovered nanostructured material passively... by shermantanktop on Monday May 26, 2025 @07:31PM (#44102609)
Or c) the person making the claim has no interest in the truth, but strong interest in some other thing.
Re:Accidentally discovered nanostructured material passively... by passwordoops on Tuesday May 27, 2025 @06:39AM (#44105614)
Which is the same as b)

Don't complicate

Re:Accidentally discovered nanostructured material passively... by therein on Monday May 26, 2025 @06:34PM (#44102292)
It is really as simple as that and even applies to soon what will seem like free energy. It is not free energy, it is just energy from a field we were previously ignoring and previously fighting against.
Re:Accidentally discovered nanostructured material passively... by cassianoleal on Monday May 26, 2025 @07:17PM (#44102504)
What is the source of this seemingly free energy that we've been ignoring and fighting against (I assume at different points in time)?
Re:Accidentally discovered nanostructured material passively... by yencabulator on Wednesday May 28, 2025 @12:37PM (#44117814)
For example, Earth's magnetic field has been claimed as a source of "free" energy.
Re:Accidentally discovered nanostructured material passively... by cryptonector on Tuesday May 27, 2025 @12:12AM (#44103896)
Yes this requires energy to extract the water, but if it's much less energy than dehumidifiers -say, one order of magnitude less- then it could make harvesting water from humid air economical.