skysight-inc/HackerNews huggingface dataset:
Would Fremen Stillsuits like in the Dune novels actually be possible?

These suits allow to survive for weeks out in the deep desert, by catching and recycling all of the body's lost water. Making sure no perspiration can escape is doable. Filtering the sweat to produce clean, salt-free water should be possible as well - membranes for water desalination do already exist today. To have all the required pumping action provided through walking and breathing is a mechanical problem that should be theoretically solvable. The big, unsolved problem I see, is heat.

The book says that the suit's layers closest to the skin allow the sweat to evaporate and thus provide cooling to the body. But the water then has to condensate again somewhere. From my (limited) understanding of the laws of thermodynamics, the amount of extra heat created through condensation, should be exactly equal to the amount of cooling the evaporation provides making the whole cycle a zero-sum affair. But for this cycle to work in the first place, the skin would have to be of higher temperature then the layer where the condensation occurs. If the desert heat is above body temperature, we'd need some sort of heat pump like in a fridge. Using changes in pressure and density (through a compressor) you could cool the suits' inside below body temperature, while heating the outside above ambient temperature - which is necessary to actually give off heat to the outside.

Those compressors are heavy and powerhungry though, and you'd need additional high pressure water lines through the suit - increasing the bulk of the whole thing considerably. Future technology might be more miniaturized and more energy efficient, but still... Maybe piezoelectric/thermoelectric cooling (exploiting the Peltier effect) would be a better choice for a suit like this. Then you'd have a light inner layer that allows for air circulation - so that the sweat can evaporate on the skin, and condensate again at the thermoelectrically cooled middle layer - where it's collected and pumped away to the membrane filters and catchpockets.

The outer layer of the suits would have to be made of flexible solar cells, in order to provide the electricy required for the cooling of the middle layer. Not sure if that could work though. Those solar cells produce a lot of heat on their own, and they sit right on top of the heat-producing side of the thermoelectric cooling. And the sun burning down on it as well - that's a lot of heat right there at the outer layer. I don't think thermoelectric cooling can overcome that high a temperature difference. It works best, when the temperature difference between the cool side and warm side is pretty small.
What did he do that made you describe him as a garbage human?
nice thanks for sharing us
Agreed about missing if and switch expressions in Swift. My preferred way of writing that would be:

let foo: Int
if x <= 0 {
foo = 0
} else if somethingElse > 50 {
foo = 9000
} else {
foo = 42
}

That way you get immutable foo and the compiler will shout at you if you forget to assign the value in one branch. It's not quite as nice as an expression, but it's less punctuation than the closure and the result is just as safe.
Why didn't they just repeal the whole thing in 2017?
Take a look at the attention manifesto:

https://twitter.com/grantdraws/status/1278349092733755392/ph...

https://twitter.com/grantdraws/status/1278349092733755392/ph...

https://twitter.com/grantdraws/status/1278349092733755392/ph...

Hope it helps
Care to elaborate? What are such safety features?
So changing "constitution" isn't possible? :)
"For a class, I had to implement a differential power analysis attack, a breakthrough in cryptanalysis as it was the first side-channel attack to be published." <-- Nope. The first published side-channel attack is, to the best of my knowledge, Paul Kocher's "Timing Attacks on Implementations of Diffie-Hellman, RSA, DSS, and Other Systems." (CRYPTO 1996). Approximately at the same time, the Bellcore attack (fault attacks) was made public and presented at Eurocrypt 1997. DPA was only published at CRYPTO 1999.
I think you've got it backward. Uber is precisely like NetFlix and they don't have the Disney franchise (restaurants).

I started ordering on Uber Eats when they got the restaurant few blocks away that is good. Then they got another restaurant across the city, that's the only one to do some specialty food I love.

I only order from a couple places. All my friends only order from a couple places. Discussing what to order at parties goes like: this or this or that (each person's favorite or good enough restaurant).

Last month Uber added £5 delivery fee. Quit Uber and started the Deliveroo app. Everybody's got multiple apps on their phones. Couldn't care less about the app as long as it delivers the food.
I wish HN had a top nav link and a mechanism like it has for “Show HN” posts, but for demoscene stuff. The prefix one would use could be “Demoscene HN” or something, and the rule would be the same as for the “Show HN” prefix – that using it is “allowed” only when the submitted of the link was involved in making the thing :D
i thought we had already basically written off HCQ as a viable treatment and it seems odd that an antibiotic like azithromycin would be in any way effective against a virus but i guess im not a biochemist so i cant say these things for sure.

i thought that anti retro virals like remesedivir were our best chance at the moment
Sorry. I disagree.

The only thing I'd change is to put the flag|hide|etc as prefix icons so I can get 1 headline per line with minimal vertical spacing. This gives about 60 headlines per page and the highest "headline density". In other words, one headline per line.

I want information, not scenery.
> P.S. As a developer, I believe that if the tool is good and does its job well, then you can pay for the tool’s services (or find Open source projects :D).

Just because something is open source does not mean it's free.
Superior is an opinion just like mine.

I’ve not driven a modern M but I’ve driven the 330d and 420i loads and they’re incredibly dull. I’m sure the Ms are more fun and advanced and the fake engine noise pumped in to the cabin is exciting and all .. ;-)
I think xkcd's take on how that would play out is more typical: https://xkcd.com/635/
"Prolific" is a bit demeaning. He took soundtracks into mainstream consciousness in the '60s, and "The Good The Bad and The Ugly" is still an absolute masterpiece.
Exactly. Yet Java has autocloseable without having deterministic destruction
Yes. There are pros-and-cons of 1-based indexing when considered in isolation. But for Lua, a language that’s commonly used tightly-coupled to C, 1-based indexing is extremely awkward.
I am interested in ALS disease research.

What I did, is manually check each potentially interesting RSS feed and incorporate interesting ones into my RSS feed list and I wrote a small program to present it this list with a summary and an URL for each item.

If I decide by reading the summary, that it is interesting, then I click on the link and look at the original article.

IMO, the value is in the manually built list of RSS feeds (it depends on your interests), not in any RSS syndication software.
Using Google Translate doesn't produce anything understandable. But searching for the text of the "favorite" part it can be seen that is is from this work:

https://en.wikipedia.org/wiki/Moscow-Petushki
You could say that Chinese restaurants in NYC are also built to deliver. These restaurants have had their own delivery fleet for decades.

For a non-chain business, probably the key is being in a dense city where majority of your customers are within a few mile radius.
I didn't even see your reply until you brought it up. More often than not for things like that I'll drop my perspective and leave. Otherwise if I took umbrage with your comment I would've actually replied which since you seemed to look through my post history you can also see I'm not one to shy away from an argument for better or worse.

But it seems like you're not interested in sticking to the rules yourself funnily enough. If you want to assume there was some grand conspiracy instead of me just reading a thread and seeing a bad remark by all means.
Even if you disagree with a group, talking to them can still be a fascinating experience.

I learnt a lot talking to devote muslims, young earth creationists and race realists.
I’m building an on-premise alternative to Google Photos[1]. Started working on this because it’s not okay for Google to have unencrypted access to and own all my memories.

[1] https://youtube.com/watch?v=b5XN5GMmc6I
> I wish that the powers that be could see that the law has not had its intended effect and has instead just led to a degraded web experience for everyone.

Wether it was the intended effect or not, it has made it very clear just how scummy advertising companies are.
"Associative" doesn't provide any information to avoid confusion when dealing with mixed operators either.

Somehow including "peer" in the terminology could help.
https://github.com/andrewprock/pokerstove
"Prolific" doesn't sound demeaning to me. It just means his oeuvre is large.
It's a wealth transfer scheme.

Wealth is transferred from ordinary folk via the IPO-retirement-fund axis to the plethora of agents involved in the whole scheme, from the employees bashing out code and UX, right through to everyone involved the M&A and IPO and the whole tax / tax agent / government tax agency cadre.

It's not trickledown.

It's deluge-up economics.
https://xkcd.com/927/

But in all seriousness, best of luck to you. I hope you create a truly revolutionary product.
Downvoted you. Someone may be despicable, but that is no reason to dehumanize them.
http://archive.is/3kvut

Take aim is right, overly complicated accounts with rules designed for the financial sector to prey on people.

What we need is a universal savings account without all the malarkey.

https://taxfoundation.org/case-for-universal-savings-account...
Thanks for letting us know, but I'm not sure many people around here agree with you.
Depends on how you frame it, and who you try to sell to, but yes: https://safetyculture.com/iauditor/
Not OP either, but i make heavy use of my rice cooker. Turns out that puy lentils cook interchangeably with white rice. So, either rice or lentils or a combination, plus water, half a stock cube, olive oil, herbs and spices, maybe some chorizo, maybe some kale or other vegetable, sometimes half a tin of ratatouille, or anything else you fancy which will cook in 15 minutes of simmering. Add, stir, push button, wait, eat.

I could make this in bulk and freeze it, but there's no point, because it's so quick to make.

Meals made this way aren't the most exciting thing, but they're as tasty as you can be bothered to make them, are reasonably healthy, and extremely easy.

Spaghetti carbonara is also very quick to make.
In a conversation, Nod and smile and give backchannel responses that make it seem like I do, and wait until the person speaking says something I do understand, to give context to everything before it, and then make an educated guess to what they were talking about.

In IT, look up every word in the man page I don't understand, and then every word in the definitions of those words, and so on, until I understand the basics of the systems and protocols underlying what I am working on, and then build back up from there.

In life, play something like a holy fool [0], and accept that things don't need to make sense for me to be okay.[1] Also that the sense that things don't make sense, could just be a feeling made by trying to cling to a framework of knowledge that is showing its limitations, and needs to be expanded or left behind.
Also know that my sleep, diet, physical activity, all play a big role in my sense of mental clarity, and try to keep to good habits.

As a human being, get away from other human beings, into someplace green and let direct observation of the billions of years in the making natural world, and my self as a natural thing make all the sense that is needed.

[0] https://en.wikipedia.org/wiki/Foolishness_for_Christ#:~:text....
[1] https://en.wikipedia.org/wiki/Acceptance_and_commitment_ther...
Ballad of the Freelancer
Eh? Is there a particular organization that you are claiming they financially support? Like, a specific place they are sending money to? I’m not sure what you mean exactly.
Yeah and when the rabble ended slavery I sold all my stocks because I knew the stupid libs didn't respect private property.
> - reference counting is an implementation detail, it is not part of the spec

> - that's because real implementations exist where refcounting does not exist (ironpython, pypy, jython)

Exactly. That was a major if not the major drive for context managers & properly closing files: the PFS and the language team were getting much more supportive of third-party implementations, and much more aware of issues in "normal" Python code e.g. though it didn't work out well in the end, ctypes also got merged into the stdlib in 2.5 with the express purpose of limiting the need for writing cpython extensions to bind to native libraries.

> - the random system resource will eventually be garbage collected

Not necessarily! In fact this is one of the major problems for non-memory resources in GC'd languages: the GC is triggered by memory pressure and that's it. Because it knows nothing about fd pressure, if fd consumption is not matched by enough memory consumption (or a properly matching pattern thereof) it's rather possible to keep leaking fds without the GC ever running (or ever running a collection which reclaims your file objects).

For instance, back then trying to install some packages would crash under pypy due to file exhaustion, because setuptools leaked fds all over the place: https://bitbucket.org/pypy/pypy/issues/878

The stdlib also did: https://bugs.python.org/issue13133
> Step 1. A one window IDE please!

Done. Here you go: https://www.getlazarus.org/
If curious see also from 2017:

https://news.ycombinator.com/item?id=13392292

https://news.ycombinator.com/item?id=13457580
Just a concrete example. Back when I worked for Square, lunch used to be $x. This was reimbursed on your paycheck and thus subject to income tax.
That won't work on other operating systems anyway.
A Doctor Confronts Medical Errors – and Systemic Flaws That Create Mistakes
Did you miss that this whole article is satire?
Server side there's already NextCloud, which is pretty mature.
https://github.com/nextcloud/photos
The government and taxpayer foot a very small portion of the bill, and do so willingly with no strings attached.
I’m sure you’ve probably come across it but it is worth mentioning - TVTropes (https://tvtropes.org) is a veritable smorgasbord of story tropes and character archetypes. Their catalog of examples is pulled from TV, movies, literature and history.
Mandala Art Design
A bit from back then: https://news.ycombinator.com/item?id=9182905
What are some others websites that attempts to improve debate quality?

I know Kialo
https://www.kialo.com
And
https://argdown.org

I would love to know more!
Is all rendering done using Cairo?
Unfortunately, even a 64 x 64 grid uses a surprisingly large amount of power and you'll find yourself working with high current DC power supplies.
If curious see also

2014 https://news.ycombinator.com/item?id=8357944

2012 https://news.ycombinator.com/item?id=4770610
Nice! Are you aware of https://github.com/hooram/ownphotos? No affiliation, I'm just interested in using something like this, I'm not sure how actively it's being worked on (it was sort of a 'functional demo' last I saw, but not quite usable).
Reasons: Why Data Management Leads to Business Success
I couldn't help but smile when the vocals came in.
How can something which never went away be back again? It's subsisting in this region almost continuously.
Everything I Know: Buckminster Fuller (1975)
So... is having the debates somewhere else than on Twitter unthinkable? I don't understand which problem this solves that isn't largely undermined by still using the platform.

EDIT: Disregard this. Not sure why I thought they were using Twitter for the back and forth.
The Defold game engine (recently spun back out of King) uses Lua as the main language [0]

[0] https://defold.com/manuals/lua/
Why not a 3D printed one?
I didn't realize he composed Ecstacy of Gold. Thanks for sharing: https://youtu.be/ZNGe7iK1O-4
I miss everything about how 'pseudo anonymous' used to be the norm on the internet
I think it's important to keep in mind that Kickstarter is not intended for purchasing a proven product, but to fund a product that you believe in, that you think needs to be made. It doesn't always work out that way in practice, but this is what it's intended to be.

For boardgames, stretch goals should indeed not be about adding or changing mechanics; that's a red flag. Stretch goals should probably mostly be about better quality components. Wooden or plastic pieces instead of cardboard, metal pieces instead of wood or plastic, a nicer board, more art, that sort of thing.

Extra options can work if options are already a big part of the game, and these are options the designer seriously considered but left out because they're not essential and too expensive to include. More money could mean they now can afford the non-essential options they originally intended but couldn't afford. But completely new game mechanics are a massive red flag.

It's worth noting that stretch goals are the area where a lot of Kickstarter projects mess up. Their original idea was good, but it was too successful and they promised too ambitious stretch goals which were just in the idea stage and never got properly developed, and suddenly they find themselves having promised things they don't have time for. I think this is one of the primary reasons why successfully over-funded projects end up being late.
Board games are an interesting thing because it's one of those global trends that did not originate in the US. Instead it game from Germany but with quite a bit of delay.

The German version of settlers came out around 1995 IIRC and sparked a big revival of board games (and strategic board games in particular in Germany. Then some time around 2008 or so I had friends in NZ and OZ who used to not play board games tell me about this cool game the wanted to play. I was quite surprised that it was settlers which I had not played since moving overseas in 2004.

So yeah the whole revival originated in Germany, but took about 10 years to suddenly go global.
What a delightful find, I wasn’t aware of dwarf fortress or it’s creators. Thanks.
I have a theory that, individually, people fundamentally disagree less than they think they do. And in real face to face meetings, they are willing to disagree about a topic without killing each other. They talk around points of disagreement. Eg: me, when I'm talking to my grandmother.

The problem is that online people tend to polarize into factions during complex discussions. The more heated the discussion, the more polarized they become. Eventually it becomes impossible for either side to be self critical, or to cede a point to the other side no matter how true it may be.

"B" says "the sea is made of saltwater". A moderately reasonable "A" agrees. Mistake! The "A" group accuse them of being pro-B or anti-A. Suddenly, the idea that the sea is saltwater becomes an "B dogwhistle". A cunning trick! At this point, the "A" group adds 'saltwater sea' to their list of unacceptable opinions, and the policing of everyday language and opinion is in place. That's when the notion of defending free speech gets questioned. How can you police language if people defend free speech?! It won't do! So now free speech is a dogwhistle too. Add it to the list! There is no possibility for constructive dialogue, no matter how sensible, kind and cool-headed it tries to be. Disagreement with dogma or talking to the opposition are offences. New rules: "Don't follow an A on Twitter". Guilt by association. Next up: let's use the abuse/reporting system to ban individuals. Eventually, online systems that were supposedly designed for communication and conversation have become tools for suppression and virtue monitoring.

While anonymity itself will help people to own up to an opinion that they might be otherwise afraid to voice, unless there are no usernames at all it will be possible to track an individual across the system and figure out "which side they're on". Then you'll be able to figure out if their comments are acceptable or hatespeech without having to properly consider them.

Don't get me wrong, I'd love to see this happen, but I think it requires a lot of work. Deduplication of points made, automatic detection of logical fallacies via natural language processing, personal dictionaries with auto-translation of terms (eg: an acceptable word to you might be a slur to someone else - if the word has a genuine meaning, auto-translate to a non-slur). That would avoid having people point and scream and claim moral victory because of a word infraction, instead of hashing thing out properly.
Idly I wonder how many people will answer as a knee-jerk reaction to the title and not actually read the article and see what it says. I'd guess quite a few ... perhaps this comment will give them pause for thought, and it will become fewer.
I love the aesthetic. I'm impressed.
I'm a little confused about what's happening here... Rust can run in an OpenGL shader ?!
Time travelling through your OpenFaaS Function logs
I really rather like this approach. I have 2 comments which are that some people are so fixed on one view that they really cannot change. Give them the maths, watch them ignore it.

Example: in a drugs discussion I posted some info showing nicotine to be minimally addictive, complete with reference in the form of a link, extract from the link so people didn't even have to click on it, and added my own experience that I did not find nicotine alone addictive you need a 2nd type of chemical called an MAOI which makes nicotine very addictive wgen taken together). That got downvoted because nicotine = bad. All the facts you like but some react by instinct.(Note, I use nicotine/drugs that just as an example).

The 2nd point is unconscious bias, which you have yourself. You've even included 'Anmericans' in the name, more or less implicitly discoubnting others - plaese don't! We exist in other parts of the globe.

Anyway, I really do like the principle.
A cheap pizza from Aldi is £1. A regular pizza with some toppings and maybe meat is £2-3 in most supermarkets. Could be £4 in higher end supermarkets.

You see where this is going. Pizzas are worth nothing, supermarkets are making money on these (it's not allowed to sell an item at a loss in Europe). Domino produces for £1-2 and sell for £10-20.

The accepted number in the restaurant industry is that food cost must be less than 30% of the listed price. Pizzas are pushing this to an extreme by selling for double digits while they're so cheap.
I didn't mean to yell - I'm simply astonished. A mask costs like 0.15€ or 0.17$ (based on Taiwans price with overall comparable price levels in Germany). Two masks a week, that cost is next to nothing.

I think the response in Germany is quite good compared to many others.

My main issue is: we compromise on having some infections and deaths, rather than compromising on wearing a mask.
I’m curious, how much of the process is digital and how much of it requires physical presence by a specialist? Also how has this been affected by the COVID crisis?
I don't know most of his work, but I've had two channels into it in my life.

1. I have distinct childhood memories of the score from Once Upon a Time in the West from when my dad watched it (and then watching it myself). It still stirs something deep, that's not just nostalgia.

2. Following Mike Patton's musical journey and finding the haunting version The Ballad of Hank McCain in collaboration with John Zorn - from an album composed entirely of covers of Ennio Morricone tracks (The Big Gundown).

I'll need to educate myself further.