skysight-inc/HackerNews huggingface dataset:
You are not reading the full report. All the storage solutions that are cheaper than nuclear power has a capacity of 1-6 hours, not days or weeks. Anything longer has yet to achieve economical viability. The few ones that has a prognosis in the near future to start being economical viable has a key assumption of a full discharge cycle of 24hrs for 365 days per year, which I repeat, has yet to exist.

A full discharge cycle mean it must charge and then sell all the energy it captured, and in their prognosis, it need to do so every single day. A battery that does that, and only carries 1-6 hours of capacity, can match the cost of nuclear power. Otherwise nuclear power is cheaper, and in comparison to green hydrogen, nuclear power is cheaper by a very large margin.
Does a deleted email remain on the server?
Noon here. Hi. My super basic understanding re email this:

- email lives on a server
- Gmail is the user interface for engaging with your emails
- when you delete an email, you remove it from the UI/Gmail platform, but not from the server

Am I thinking of this correctly? Is a platform like Gmail more of a way to curate your experience of what is permanently /semipermanently(?) kept on the server?
> The image should retain the same overall brightness as it is scaled down.

Incorrect.

While large regions of homogeneous color should indeed retain their brightness, thin one-dimensional structures are supposed to become darker and disappear gradually as the image is scaled down.
Very good for actually researching and not just commenting because of raw emotions. Honestly a breath of fresh air to be honest.
"List of optimization software":

https://en.wikipedia.org/wiki/List_of_optimization_software
You still have to make the leap that this guy who crashed his plane has the same level of awareness of the danger of heavy machinery as "most people" as the original commenter claims. With this being such an outlying incident that is honestly hard to do. Or in other words, I have trouble believing that many people could be as ignorant as the guy in the video. It's one thing to say that most people don't know how dangerous an escalator is but another to say most people don't know how dangerous deliberately crashing a plane is.
I bet you could get 10 cards each with a 2k limit though. That’s what usually happens, and how people get in serious cc debt trouble.
> “The next day [after reports about the Russian jamming effort hit the media], Starlink had slung a line of code and fixed it,”

The notion that SpaceX is basically using a Full CI/CD pipeline on a massive satellite constellation is kind of amazing. Meanwhile most large government software requires months of contract negotiation before anyone is even hired to fix the problem.
I live in one of the most competitive areas of the US: there are three ISPs who will provide copper or fiber "gigabit" speeds to my house.

One doesn't offer IPv6. Two won't provide a static IP, and the other charges an extra $15/month for that. Two are highly assymetrical, and one of those won't even tell you before you subscribe what the upstream speed is. One of them wants to impose extra-cost fees above a datacap which my house has exceeded (by 10-30%) for 6 months of the last 12.

That's what competition with 3 commercial participants looks like. We need about 7 to get a functional market.
What a surprise seeing Marcella mentioned on HN! She was my grandmother cousin but I've never actually met her because she left Italy before I was born. It's a pity that she's virtually unknown in Italy, you will not even find her books in international book stores. My uncle told me once that her son, Giuliano Hazan, is preserving her legacy in Italy with cooking workshops that he holds in Verona once every year.
It just moves the problem, to how do you delete the keys & manage backups of the keys.

You have to backup the keys, since a system outage would otherwise leave you unable to function.

My shot from the hip: encryption/keying is irrelevant except for highly sensitive data (credit cards, crypto wallets). Plain deletion from production databases should be sufficient, backups should be "at arms length" but otherwise should not need to be treated specially.

Another shot from the hip: System outage & RPO loss of a requested deletion is an act of God and no worse (indeed probably less important) than losing the other business transactions in that time period. I don't see special handling being needed for deletion.
I am under the belief that "Z" was painted on military vehicles transiting to be part of the pre-war buildup on Russia's western border. "Zapad" being Russian for "West".

I don't know this to be true but it seems plausible to me. I'm sure there are plenty of co-opted uses/meanings of the "Z" now though.
How does Chrome on its own do it?
The claim is that these things were much more difficult to do.
> The shrubs are yaupon (pronounced “yo-pawn”) holly, the only substantially caffeinated plant native to North America.

Anyone drink winterberry tea? It's tempting to me since it's everywhere, but I haven't been able to find much in the way of a history of traditional use or information about safety.
Meta Platforms Fell Behind in Indian Mobile Payments
On april 17th I made the prediction that the US government was in control of twitter for probably this reason. I got flagged for this.

A day later a bunch of former intelligence people basically said this is a good idea. That's funny to me.
People have to get involved in their community. They have to vote for people who will act in the people's interests and not Comcast's.

So much propaganda has been foisted upon people that they believe everything the government touches is shit and corporations should run everything. If you want to see change, you have to fight that nonsense.
I agree in general, but not with this: "It wasnt windows's fault its just that its update utility had to overwrite a part of MBR". If they cared, they could spend some time to design / document a nice way for systems to redirect to the next entry. They could've used grub and chainload. They could've invited others to collaborate. It was very much in MS interest not to care and I totally blame them for doing just that.
Show HN: Free Gratitude Night Challenge, the 3th best night of all of college
I built this exclusive prototype, inspired by Prof Martin Seligman, so you can discover something indelible!
What does “good” mean here? This is just one general way to arrive at an answer that doesn’t require much thinking. Who knows if it’s the best even if it is the one that requires the least thought. The past is not always a reliable moral compass model for judgement calls.
And instead force every application which needs to store large amounts of temporary data to implement its own swapping mechanism? Don't you think we will end up with a lot of even less optimized swapping systems that way?
Depends on how the server is implemented.

Most deletions move it to a Trash folder either via the UI or IMAP and eventually the trash is emptied.

But even after that the server may have access to the email for some period of time for undelete/restore.

And of course any backups.
The sky-high cost of returning to the office
Can you link to a pic or vid of this? I think a visual aid would help.
- Cplex and Gurobi, sometimes some open source ones.

- Energy modelling: the core models for one timestep are small (ca 1-2k variables), but together with long timescales/stochastic programming the model formulation blows up (easily by a factor of 10-40k).

- Mostly LP-relaxations of MILPs with manual cuts. MILPs themselves take often too long.

- The solvers are ok:

- There is a nice theory around LPs and MILP is understandable. So in principle, I trea them as black boxes.

- API: Similar enough between solvers because of nice formalism of MILP. Generic APIs on most platforms (pyomo, jump, ..). Beware magical helpers.

- Performance: For LP predictable. For MILP -- tune it. It becomes tricky when tuning solvers/staying solver-independent without sacrificing performance. Metaheuristics to the rescue. Open source solvers have a harder time here.

- The big problem is the modelling and context part: translating the problem into am MP formulation, ensuring correctness of units/scales, generation of apis and docs ... once you do it by hand, but if you want to run a modeling loop or support multiple models (variants, optimisations, special cases), then this ist most of the effort (and costs human time, instead of computing time).
I have a very strong disdain for the kind of people level of cognitive dissonance it takes to complain that there isn't some highly specific law forbidding a particular fact pattern of stupidity and then turn right around and complain that America is puritanical because some random things considered mundane elsewhere are illegal.
On the other hand, TWA 800.

https://en.wikipedia.org/wiki/TWA_Flight_800
NEJM: Long-term efficacy of time-restricted eating for weight loss are not clear
Cursive is still taught with ferocity in Dutch primary schools. When done well it's pretty, enables rapid writing and note taking, and at least part of learning to write that way is to learn how to read it. Since everyone older than you will still write that way, it's useful to be able to read it.
I have a side project named CaseYak and for the first year of it we were forced to use thecaseyak.com because caseyak.com was taken. We looked into the whois record for caseyak.com at the time, and it turned out it was owned by someone named Stephen Casey… who lived in Alaska (AK). So it was casey ak dot com (lol). Not sure what happened to Mr. Casey but the domain just opened up this year.
How is the U.S. Unemployment Rate Calculated?
Hey, that means a lot. Thanks.

It does seem there are a lot of methodologies being used with the product. And agilefall does seem to be making a comeback. But a fair number just use it as a faster way to plan the sprints and run standup. (Vs in Jira)

The thing about “spreadsheets” is that they seem to be flexible enough to fit all the idiosyncrasies of how different teams work, regardless of methodology. I hope the product can save you time, frustration, and copy/paste drama.
Much like the parent is the plot of an X-Files episode, this is the plot of Devs. They just kind of handwaved away the resolution issue with some nod to many worlds interpretation. Of course, as they noted in the show, the ability to reconstruct the past this way implies you can also predict the future using the same technique.
>Solar pays for itself in raw kWh over ~8 years

AFAIK in this thread the calculation that gave the answer of 8 years also included the bonus that comes from the government subsidies. What is the number if we excluded that subsidy?
There is a name for this: Structural separation. It should be a regulatory norm. What it does for consumers is to eliminate the barriers to entry for multiple retail competitors. Those competitors then make deals with upstream bandwidth providers who also have to compete.
If you use that Mac Studio for work that's a valid attack scenario. In a targeted attack it isn't unheard of that hackers do physical attacks as part of the attack chain.
What’s the over/under on a desperate plea to SpaceX for a starship rescue mission for one of the Orion crews?
FWIW, I do read 10-K and research papers regularly as I find that investment worthwhile for me - even if it is several hours a week. You may not, that's fine.

> Like it or not - you have to rely on 3rd party summarization and information selection.

I don't necessarily disagree. I have a slightly different viewpoint. I do rely on 3rd party summarisation as a first step. Beyond that, I dig deep myself and form ym own opinion.

Your answer seems to suggest reliance on credible 3rd party sources. No issues with that - but if you should also accept the implications with reliance on expert / wisdom of crowds. <Insert Aswath Damodaran's lemming cartoon> If you are fine with those implications, good for you. I am not, most of the times - at least in areas that I care about. Therefore, I read research papers and 10Ks myself.
If you're curious to read more, there's a completely non-sci-fi name for that theory. https://en.wikipedia.org/wiki/Embodied_cognition
What about when you can't add any more RAM?
Not to discount how great SpaceX is but these are two completely unrelated things.

Do you want the government to hire contractors without contracts?
I'm pretty sure it takes a while for an email to be properly deleted in most online email systems, as it will have to flush through replicas, backups, etc. for a while.

Some metadata about emails may also be stored permanently out of the email system.

There is no guarantee that an email service provider deletes all copies of an email when you press 'delete' on the email, but most likely after a while the email will not be recoverable.

It _really_ depends on so many things.
Screenshot page, set background-image, done ;)
Whatever the "server" is, that would be an implementation detail, unless your question if more about the IMAP and POP3 protocols and what they are "supposed to do".
The “correct” colour mixing example looks a little better, but only a little bit. The others, I don’t see a problem(I have m1 MBP, Firefox). I don’t think any of this would really affect my browsing experience one way or the other…
Interesting link, thanks, I wasn't aware of that. The link seems to suggest that the odd mixed-endian string representation ("Variant 2") is now quite rare.

With the one that's more common ("Variant 1"), I'd say that I *slightly* disagree that representing the byte sequence 99,aa,bb,cc as 99aabbcc is "big endian". If you don't philosphically think of the latter as a number, then it's just the bytes written out compactly. But I do see that if you think of it as a number then it's big endian, especially if you're distinguishing from variant 2.
Show HN: I built a service to detect invalid and malicious email addresses
Hello HN,

around October last year, I started to work on campaignkit.cc as a side project. It is a service to detect invalid and malicious email addresses. You can upload text files, and use the REST API or direct integration to retrieve a detailed report for each email address.

End of March I added Stripe Payments and got my first paying customers via SEM.

A coworker suggested starting a Show HN thread, so here we are :)

I used golang for the backend since I wanted something lightweight with fast compilation times (coming from scala).
For the frontend, I'm using Next.js and TailwindUI.

On the further roadmap, I plan to provide more services around email deliverability. This includes Inbox placement, Backlist monitors and DMARC Analyzer.

I’m happy to answer questions, take criticism, and generally hear what you think.
>One of the largest step-changes in lost person behavior came with the general adoption of the cellphone: many, many people now tend to go uphill than before - specifically in the hope of finding cellphone coverage.

Wouldn't surprise me in the slightest.

Historically, it was pretty situational if you should stay put and make yourself safe and visible to rescuers or if you should try to self-rescue. But my sense is today the general impulse is to call for rescue--with the caveat that many of the places people are most likely to get in trouble are the least likely to have cell phone reception.
I can't. But there's good evidence that inflammation is linked with depression and steroids unquestionably reduce inflammation. They may well have further effects. They are certainly not something I want to take consistently.
I'd assume that municipal broadband providers still have a privacy policy that would require a court order to turn over data to law enforcement. And that would be the exact same thing binding a corporate broadband provider.
Fungus Has More Than 17,000 Sexes
Coal is also able react relatively quickly to flex up/down within a range once running but has relatively high start costs and minimum run time (startup/shutdown takes longer). In the UK, the remaining coal fired plants still regularly participated in the balancing mechanism over the winter, for example (at sometimes eye-watering prices due to those factors along with high emissions costs).
When you're using a ringing filter, sRGB is often a better colorspace for upscaling than linear RGB, because it distorts the ringing artifacts to make them less noticeable by putting them mostly in the highlights, not the shadows. It's not mathematically "correct", but it's better suited to human perception, similar to how minimum phase filters can perceptually outperform linear phase in audio processing, where pre-ringing is more noticeable than post-ringing.

See "Catch #3" here:

https://entropymine.com/imageworsener/gamma/

And you can sometimes get even better results using a sigmoidized colorspace. See:

https://legacy.imagemagick.org/Usage/filter/nicolas/#detaile...
These are community run. If they were gleaning your bits, someone you run into would know about it and then you'd know, too.

I would trust muni broadband over Comcast any.day.of.the.week.
I had never considered this before - but it seems to me that lean development methodologies and CI/CD (and other DevOps practices) will become a defense priority, at least a priority of the nations that effectively wage war.
>This was the flagship title, the system seller. Come play Mario. In 3d.

And I think they were right. I bought it just because of Mario64. Otherwise I'd have gone for Playstation.
Looks valuable, some of them might come in handy.

But it's unstructured now and hard to navigate. It would be great to add categories and filtering. So users will be able to browser only what they're interested in.

And if you plan on adding new sites it might help returning users if it displays "new since you last visited".
"Supposed to" in what context, by whom?
Protecting Privacy in Surveillance Video While Mining It for Data
"the "Z" branding is very popular in Russia with influencers and athletes brandishing it brazenly in their respective forums"

I only know of two times this has happened. The gymnast one and the rally one, which reportedly was a forced event. Every other athletic event that involves Russian athletes, like hundreds here including the hockey playoffs and figure skating, have not displayed the Z branding.
>All of the biggest companies start this way.

Do they, though? I feel it's more instinct people have that sacrifice leads to reward, when in fact the people who suffer the most for too long drive themselves into a ditch.
Conceptually you're pretty much there, sir. Gmail is mostly just an interface to googles mail servers.

Gmail's UI doesn't do the actual deleting of email, it just instructs the email server to delete it.

However, I have no idea how the email servers behind that are actually configured. I wouldn't be surprised if emails are actually just hidden or archived but they'll "look" like they've been deleted.

Hope this helps.
Reminder to turn off your blue light filter before testing it.
Do you have to pay $40.00/month to use the streets to go to work? No.
Do you have to pay $40.00/month to use fiberoptics to work from home? Yes.
ISP's love this.

Internet is infrastructure. ISP companies get paid handsomely for a service that should an itemized line in our electric bill.
One reason for the gap in those specific titles is FZX and SSB use 1 cycle color combiner. Zelda use 2 cycles.

SSB also have a very specific Z management. Levels are drawn without Z buffer, from bottom to front, then the character section (1 meter width) is drawn with Z buffer enabled, and the rest of the from level is drawn without Z buffer, once again from bottom to front.

I never inspected FZX but I suspect its Z management is managed is a similar way.
This is right on the money.

One emergent use case is that teams who can’t get all the fields they need added to Jira end up going around it to do their work. (The qa team, for example, may not have leverage to get a whole bunch of checkboxes added that reflect their process). Spreadsheets then become a place where their work happens, and Jira becomes the place they keep up to date to “communicate” with others.
I want the government to have the in-house expertise to just do things, especially things that can't be specified in a contract by a KO making $53k per year with no real-life experience.
The same thing that happened with viral advertisements or social media stars. Industry plants.

I seriously cannot understand whether people truly care that much about yet another Notion -> X tool. They aren't that cool nor useful. Funny enough those tools go under with some shutting down story on IndieHackers a year later.

From what I've read from various "Growth Hackers" here on HN, IH, and PH, it's that many people will pay for likes, pay for shoutouts on newsletters/videos/etc to get those likes, and all to get the "Best Seller" / "Most Popular" product status to make a quick buck in the short term and then left wondering why nobody uses the product a year later.

I've become a bit jaded to these communities because you start to realize how "fake" they are such as how things will make the front page by being sponsored or promoted by admins. I'm glad HN doesn't do that to my knowledge thus far. You see your contributions actually go through the gauntlet.
Something like this [0], but don't worry about the counting, just doodle the patterns

[0]https://fcmdsc.files.wordpress.com/2010/06/exercises.jpg
That explains it then, looking at our past few bills it comes out to ~$0.13/kWh. So yeah, we are less than half the average price in CA. Crazy. That would really change the dynamics of how profitable solar is. I've been wanting to get solar myself.

In reality our rate is Basic - $23.15 + All kWh @ $.089. So it would be even cheaper if we used more on a per kWh basis.
Yes, it is easy to make a bootable device that can use either syslinux to boot when legacy BIOS is used or efistub to boot when EFI booting is used, eventually loading the same kernel.

No other bootloader is needed.
>DOCSIS3 on coax last mile service (250 down x 16 Mbps up and 0.03% packet loss)

I'm all for municipal broadband and sticking it to the incumbents, but DOCSIS3 is far better than you give it credit for. My current DOCSIS3 service from Comcast is 1200 down/45 up, and it's rock solid. And there are network architecture improvements on the roadmap that will allow that relatively paltry upload speed to rise significantly in the future.
Tesla UK removed delivery estimate
Anyone else in the process of ordering a Tesla? After ordering, my delivery estimate was changed several times, and has been delayed from March to July. Since yesterday I can't see the estimate at all - not in the app, nor on the account page. Does anyone have the same experience?
What is this talk about “the algorithm,” as in Musk saying “they should open source the algorithm.” Is this the traffic boosting and suppression mechanism?
NB: the photographer, John Tlumacki, won a Pulitzer Prize for the images he captured in the moments after the Marathon bombings!
I thought college was expensive until I looked into historical tuition prior to the modern era. Turns out our grand parents, parents, and siblings just lived in a golden age of fair wages and massively affordable and available education.
I want solutions to problems quickly. The current system does not do that.

You're presenting a false dichotomy, or lacking in imagination.
I'm sure a contract can be developed that requires support for rapid response to such events.
I mean, probably, which is also what I said. But what the parent actually said could also be either.

The point of my comment is that not only are the sorting algorithms changing over time, but what we say constitutes "algorithmic" vs. "implementation" changes also changes over time, so it's really hard to say whether certain changes are "algorithmic" changes or not!