MurphyA/hacker-news huggingface dataset:
by floatrock | 2025-04-28 14:24:46+00:00
If you have a switching power supply brick for your tiny USB device, not really.

If you have a large spinning inertial mass like a factory motor or a power generation turbine, it's extremely important. Imagine a manual car transmission, but there's no slip-clutch, you need to perfectly align engine with the wheels rotating at 300mph, and the inertial mass you're up against if it's not perfectly synchronized is a freight train.

That's why generators trip offline in a blackout cascade if the frequency deviates out of spec. The alternative is your turbine turns into a pile of very expensive shiny scrap metal.
by sizzle | 2025-04-28 14:25:06+00:00
Yeah I have observed the same re: lack of immigrant mental health access/diagnosis, but it seems to be changing in subsequent generations that are more privy to mental health disorders in general. Why not help a child get accommodations they need to thrive in school, there is no shame in that in my opinion. It narrows/evens the playing field for neurodivergent folks who need a little more help to be their best selves in school.
by sleepydog | 2025-04-28 14:25:06+00:00
I'm working on a multicast dns implementation in OCaml. It's a library allowing one to build custom queries/responders, plus a conventional querier that can be used as a stub resolver for .local to get the resolver functionality of avahi.

My main motivation was to implement a service that publishes the addresses of containers and vms that I run on my workstation to my local network, but it gradually has grown into a full-blown implementation of RFC 6762, which has been fun.
by bookofjoe | 2025-04-28 14:25:13+00:00
>Again, no one is proposing monitoring everyone all the time.

I repeat: that ship has sailed

>I drove 300 miles in rural Virginia, then asked police to send me their public surveillance footage of my car. Here’s what I learned.

https://cardinalnews.org/2025/03/28/i-drove-300-miles-in-rur...
by acureau | 2025-04-28 14:25:15+00:00
Fantasy consoles are awesome, very fun project and I love your demos. The way the bombs fall with the music in Kaboom is smart. I've thought a lot about building a hardware PICO-8. Not just running the software, but implement the APIs for real hardware and transpile the game cartridge. One of those ideas that will probably forever stay in the back of my mind.
by luke-stanley | 2025-04-28 14:25:22+00:00
For offline messaging over Bluetooth/Wi-Fi without internet or central infrastructure, I saw these recommended by ChatGPT Deep research and they seem current: Bridgefy (Android & iOS) – direct Bluetooth mesh within ~100 m, instant one-to-one & group chat, <1 min install. Berty (Android & iOS) – E2E-encrypted over Bluetooth/Wi-Fi; Briar (Android) – E2E-encrypted over Bluetooth/Wi-Fi with Tor fallback. Manyverse (Android, iOS, Desktop) – offline-first social feed that syncs posts over Bluetooth/Wi-Fi when peers meet. Can anyone vouch for these or know better?
by austin-cheney | 2025-04-28 14:25:24+00:00
High pedestrian traffic areas, such as school zones or city down town areas with one way traffic lanes enjoy the lowest speed limits because external factors are more important than the vehicle that is driving. These aren't areas where people are most frequently cited for speed violations, though, because those external factors are generally enough to enforce low speeds naturally.

Freeways, where drivers are overwhelmingly more likely to be cited for speed violations, are not high pedestrian areas.
by casualmike | 2025-04-28 14:25:53+00:00
I'm working on a site that lets you tile and watch multiple videos from different platforms all at once.

You can drag and drop links from YouTube, Twitch, TikTok, or Kick --and they show up in a grid.

You can reload or remove streams without refreshing, save mixes for later, and share them as links. It works best on a really big screen --phones aren't really supported and even notebooks are too small to get much benefit.

There's no backend, no login --everything runs in the browser.

https://panoptic.live/
by _fat_santa | 2025-04-28 14:25:58+00:00
I will say this as a car guy, Virgina has an exceedingly bad reputation among gear heads. If you look at virtually any east coast rally, they will all route around Virginia to avoid driving through it.

- VA is the only state to ban radar detectors

- It has the lowest interstate speed limit in the country

- It has some of the stiffest super speeder and reckless driving laws in the country. In most places if you go like 30 over that's just a bad ticket but in VA that's criminal reckless driving.

- And many other anti-car related laws.

I will be the first to say, don't speed, don't street race and if you have that itch to go a track but also, VA is a horrible place to be if you're a car person. It's not in the least bit surprising that they are the first to pursue such legislation.
by martinald | 2025-04-28 14:26:03+00:00
They don't really disconnect it like that in these circumstances (as in they choose what to disconnect). As far as I know generation plants will start disconnect when grid frequency is <49Hz or >51Hz (at least in the UK) automatically as it's all starting to go very wrong. This is what causes this huge cascade effect. Roughly speak less frequency means there is more demand than supply and the other way round for higher frequencies.

This has changed a lot though, as even home batteries afaik will start discharging if they start noticing the frequency dropping to provide some support on generation. But if it's dropping too fast and too quickly it won't help.

But yes they do have very granular info on all the HV sources and how much load is on them.
by Arnt | 2025-04-28 14:26:10+00:00
What Trump does is to grant exemptions (e.g. from secrecy rules at the Pentagon), invent special rules (e.g. no security clearance for lawyers who've served the clients Trump doesn't like), take bribes (e.g. security clearance from the goverment but only once you've agreed to work for Trump's political friends for free) and so on.

What's being proposed here is to revoke an exemption, so Tesla has to follow the same rules as other car manufacturers. That's not in the same class. An exception from the law requires continuing justification IMO. The state can IMO say "okay, our reasons were A, B and C, that doesn't apply any more" and if Tesla wants to continue to be treated specially, it has to argue for that.

(But IMO the state has a moral duty to make the transition palatable. Reasonable warning time etc.)
by pc86 | 2025-04-28 14:26:19+00:00
Judges already have the power to permanently revoke people's license to drive, the problem is they don't.

It's a very simple problem with a very simple solution. If someone proves multiple times they won't follow the rules of the road, revoke their ability to legally drive. Most states go to jail time on the first or second offense of driving without a valid license.

This whole argument smacks of "let's not make things too hard on these people willfully violating our laws over and over and over again."
by nottorp | 2025-04-28 14:26:31+00:00
Our government said we're fine with our local generation and are even exporting 200 MW (possibly to our eastern neighbors?).

I definitely had no problems with electricity all of today (on the eastern side). And there was nothing in the news about local outages either.

Funny enough, there were news before the Easter holidays that they're preparing for extremely reduced demand by shutting down facilities.
by tgsovlerkhgsel | 2025-04-28 14:27:04+00:00
The downside of these systems is that the behavior of the cracked game is often simply attributed to the game, contributing to the perception that the game is buggy (or just bad/not fun).

While they are somewhat effective at making pirates miserable, I have my doubts on whether they are actually good at driving sales. Keeping pirates from enjoying the game isn't a victory for the developer, generating sales is...
by malshe | 2025-04-28 14:27:09+00:00
The inside joke among academicians is that our slides have wall of text because we make them on the flight while going to the conferences! Our presentations tend to be bland because the audience is reading off the slides and ignore what the speaker is saying. That's why for our doctoral students we make it mandatory to present at least twice internally before presenting to external audiences. Otherwise, they have these giant tables copied from the manuscript and pasted on the slides, which most people can't read without binoculars.
by iugtmkbdfil834 | 2025-04-28 14:27:17+00:00
<< as if that’s a thing that happened

In the links I so helpfully provided ( I will focus on #8 ), Guardian did note that FB was tasked with combating 'vaccine hesitancy'. And did FB take actions to combat that hesitancy in US? If so, is that censorhip? If so, is it related to speech?

So tell me, what really did happen?
by vel0city | 2025-04-28 14:27:55+00:00
Fully understood and agreed. That's why I bothered saving that for the second comment, because it's not necessarily that high of a fire risk but it is still a little bit of one. Having that much energy stored in that small of a package will always have some kind of risk of "what happens when that stored energy gets released in an uncontrolled and rapid manner?"

And that said, I do have lots of other somewhat beefy batteries around the house. They do a lot of useful things for me such as power my tools including my lawn mower, string trimmer, hedge trimmer, saws, etc. There is a massive one in the car parked in the garage. In these cases it is a useful trade off of that slight risk as I'm actually getting something normally useful out of it.
by selcuka | 2025-04-28 14:28:05+00:00
Even the commercial product PKLite by PKWARE (of PKZIP fame) was "inspired" by LZEXE [1]:

> If you look at the source code of the decompression engine of PKLITE, you'll notice that it looks like the one of LZEXE.

[1] https://bellard.org/lzexe.html
by collingreen | 2025-04-28 14:28:07+00:00
Oof. This post started so good and then got progressively more sad until the edit nailed it home. I hope your story continues and works out as a huge win, either as a new, good boss, you getting to openly lead this kind of thing, someone reading this and poaching/sponsoring you, or maybe even you working on this under your own name.

Good luck and we're rooting for you!
by mindcrime | 2025-04-28 14:28:20+00:00
I spent the weekend working on the Ansible automation needed to deploy Tomcat and Roller Weblogger for my new personal website/blog[1]. Once the loose ends are tied up with this, I plan to deactivate my Facebook account and mainly focus on the personal site + Fediverse sites for sharing stuff. This is both to be consistent with my principles, which say to disfavor closed-source / walled-garden sites like Facebook, and because it should free up some time I waste when I allow myself to get pulled into political discussions on FB. It'll probably be better for my mental health as well.

[1]: https://www.philliprhodes.name
by jonathaneunice | 2025-04-28 14:28:45+00:00
A giant part of the cost of dynamic languages is memory access. It's not possible, in general, to know the type, size, layout, and semantics of values ahead of time. You also can't put "Python objects" or their components in registers like you can with C, C++, Rust, or Julia "objects." Gradual typing helps, and systems like Cython, RPython, PyPy etc. are able to narrow down and specialize segments of code for low-level optimization. But the highly flexible and dynamic nature of Python means that a lot of the work has to be done at runtime, reading from `dict` and similar dynamic in-memory structures. So you have large segments of code that are accessing RAM (often not even from caches, but genuine main memory, and often many times per operation). The associated IO-to-memory delays are HUGE compared to register access and computation more common to lower-level languages. That's irreducible if you want Python semantics (i.e. its flexibility and generality).

Optimized libraries (e.g. numpy, Pandas, Polars, lxml, ...) are the idiomatic way to speed up "the parts that don't need to be in pure Python." Python subsets and specializations (e.g. PyPy, Cython, Numba) fill in some more gaps. They often use much tighter, stricter memory packing to get their speedups.

For the most part, with the help of those lower-level accelerations, Python's fast enough. Those who don't find those optimizations enough tend to migrate to other languages/abstractions like Rust and Julia because you can't do full Python without the (high and constant) cost of memory access.
by lenerdenator | 2025-04-28 14:29:05+00:00
> Get caught speeding more than once an year and you are guaranteed to lose your license.

I'm not overly familiar with British transportation outside of its major city centers, but in the US, we also yank licenses, but people drive without them anyways, mainly because there's no real alternative.

Even those convicted of DUI in my area can make a plea to the judge for a "hardship" license that effectively allows them to operate a motor vehicle only for emergencies and going to-and-from work. It's so hard to live without a car in the area that you could possibly make an Eighth Amendment case against pulling the license of a drunk.
by astura | 2025-04-28 14:29:51+00:00
Yes, that's exactly my point.

I save for my cars, I don't, generally, finance them. I did finance one car once when I was a young engineer and still had student loans. I did it because I was just starting my career. Paid off the loan completely within a year.

I basically think everyone, no matter your income, should strive to save for their cars as much as possible, and try to avoid financing. Always financing a car is a trap to always spend more than you can really afford on a car. Saving and paying cash allows you to really gauge what is affordable. Even my sister in law who makes close to minimum wage has always been able to save for her cars and pay cash.
by 999900000999 | 2025-04-28 14:30:40+00:00
I'm fine with building out stupid ideas, for one of two reasons.

One, we've been friends for a minimum of 5 years and I sincerely like you as a person.

Two, you pay me.

At least twice I've had situations where I basically need someone at a bar or something and within a week they're sending me a bunch of specs to program out something that will require a small team to do properly. Then when you do hack out a small prototype it's not good enough.

At this point in my life, I'd rather work on my own solo projects if anything. I'll release the code MIT and if someone smarter than me wants to make money off it they can
by tgsovlerkhgsel | 2025-04-28 14:31:07+00:00
Just reading phrases like "sky-high rate of crash deaths", "Blazing-fast vehicles" (and similar ones throughout the article) makes it very clear that this is not an attempt to report news, but push an agenda.

Reminds me of the "German news is different" video (https://www.youtube.com/watch?v=jphacgBLrc0) that explains the difference between US "news" and Tagesschau (famous for being considered a neutral, trusted source across most of the political spectrum).

Edit to add: Since these are add-on systems, the requirement to install one also imposes a (usually very high) financial cost on the person, and I suspect this may be part of why it's being pushed - it's a convenient way to drastically raise fines without overtly appearing to do so.
by tguinot | 2025-04-28 14:31:07+00:00
Replace "blatant" by "implied" and yeah.

There was no mention of any race being inferior to any other in these posts.

The court guessed that this was the man's true belief. Same with the student that got expelled from the US for implying he supports Hamas.

This is not whataboutism: the original comment I replied to was precisely about Brits being afraid of the US government on free speech.
by anonfordays | 2025-04-28 14:31:30+00:00
That was fake news:

"The French researcher in question was in possession of confidential information on his electronic device from Los Alamos National Laboratory— in violation of a non-disclosure agreement—something he admitted to taking without permission and attempted to conceal. Any claim that his removal was based on political beliefs is blatantly false."

https://www.snopes.com/news/2025/03/20/french-researcher-den...
by cratermoon | 2025-04-28 14:31:41+00:00
In this case it was a loss of context. The original post was highly upvoted because in the context of jokes it was considered good. Take it out of that context and treat "most upvoted" as a signal that means something like authoritativeness and the result will be still be hilarious, but this time unintentionally so.

Or in short, LLMs don't get satire.
by IlikeKitties | 2025-04-28 14:31:41+00:00
Oh, my comment wasn't meant as a criticism just curiosity because I would have been extremely surprised to see such a project being fabricated.

I find the idea of a processor designed for a specific very high level language quite interesting. What made you choose python and do you think it's the "correct" language for such a project? It sure seems convenient as a language but I wouldn't have thought it is best suited for that task due to the very dynamic nature of it. Perhaps something like Nim which is similar but a little less dynamic would be a better choice?
by Jolter | 2025-04-28 14:32:19+00:00
Why are you asking me?

If you want to know what happened at a private tech giant in California, ask someone who works there or an investigative reporter who writes about such things.

I notice that you’re not disputing my claims that nobody in the US was secreted away in a concentration camp over a refusal to vaccinate, or over refusing to comply with quarantine rules. You’re also not disputing that refusing vaccines is not an act of speech.

You’re just trying to exhaust me by throwing a lot of arguments at the wall to see what sticks. It’s not working; you’re not convincing me that the US government under Trump is not breaking new ground by removing people’s rights.
by RegnisGnaw | 2025-04-28 14:32:29+00:00
No they're not revoking an exception, they're making exceptions for non-Tesla.

"Under her plan, the licenses could be redistributed to rival electric-vehicle manufacturers like Rivian, Lucid and the Volkswagen affiliate Scout Motors, which also employ a direct-to-consumer sales approach." This is exactly what Trump is doing.

Basically no special license for Tesla, but special license for others. I'm either special license for all or special license for none.
by veidr | 2025-04-28 14:33:30+00:00
Yeah, of course ZFS on macOS is a disaster, the people trying to make it work are what? Two people? One heroic dude?

But I agree with you about the most important feature that Apple failed on.

I lament Apple's failure to secure ZFS as much as the next Mac user, but I understood that ship to have sailed when it did, around a decade ago.

But as a desktop user, I almost threw up in my mouth when APFS came out with no checksums for user data. I'd assumed if they were going to pass on ZFS they would reimplement the most critical feature. But they didn't. I know I've lost data because of it, and if you have a few TB of data, I suspect you have, too.

Not lost permanently, because I had manually-checksummed backups. But lost in the sense that the copies of the data made on macOS were corrupted and different, and the OS/filesystem simply didn't notice. Oops!

Once you've used ZFS, that's unforgivable. I mean, ZFS has had some bugs, over the years (well mainly just last year lol), and a small number of users have lost data due to that. But to silently lose data by design? Fuck all the way off. It's 2025, not 1985.

So while APFS has some cool modern features (or at least two), it's an embarassment. (And all my non-ephemeral storage is now on Linux.)
by CamperBob2 | 2025-04-28 14:33:43+00:00
Yes, because the Chinese Room was a weak test the day it was proposed, and it's a heap of smoldering rhetorical wreckage now. It's Searle who failed to offer any substantive points.

How do you know you're not arguing with an LLM at the moment? You don't... any more than I do.
by pheelicks | 2025-04-28 14:33:54+00:00
No, it is based on applying a lattice onto the faces of a dodecahedron (technically a pentakis dodecahedron). Take a look at https://a5geo.org/examples/teohedron-dodecahedron and other examples on the website.

H3 is based on a dodecahedron it is it the reason the cell areas range so much, the same is true of S2 - but this is based on a cube.
Show HN: Data Infrastructure assistant for Data teams
by anujnimkar289 | 2025-04-28 14:33:55+00:00
Hey HN, Hope everyone is doing great! I have built a fairly early stage prototype of something called as a Data Infrastructure Assistant - https://render-dda.onrender.com/.

Try the following prompts - ‘What is the Calculation behind metric TotalRevenue’ - ‘Calculation behind metric TotalRevenue’ - ‘In which table is the column TotalAmount’ - ‘Is there a table that contains details of an order from a customer’

Please see the problem it aims to solve and the solution,

Problem : Quick and easy access to metadata (data dictionary, metric definitions) has been observed to be a challenge for data teams.

Solution : With Data Infrastructure Assistant, we aim to solve the above problem (think Google/Perplexity) for your data infrastructure. Vision is, to provide quick and easy accessible information to the data teams.

Under the Hood: Leveraging LLMs to access metric specific information. Description for the metric definitions is pulled off of the code written to generate the metrics. Also, this way the engineers don’t have to spend as much time on documentation.

Is the problem real? Happy to get any feedback on this!

Thanks and cheers!
by ghc | 2025-04-28 14:34:00+00:00
I explicitly excluded those from my research, including only employees of for-profits. While federally funded research is important, it would be misleading to include academia in employment figures.

To wit, Harvard alone has 10000 medical research faculty. I can only imagine how many grad students are toiling away in all those labs (or were, before the dismantling of NIH).
Show HN: NovaStore – Automate French App Store Encryption Filings
by jsafaiyeh | 2025-04-28 14:34:13+00:00
Hey everyone,

I built NovaStore after struggling with the French App Store encryption filing requirements myself.

Most developers don’t realize that even using standard features like HTTPS, Keychain, or APNs requires filing a crypto declaration with the French government (ssi.gouv.fr).

The process is slow, confusing, and buried under legal documents, so I created NovaStore to make it simple.

NovaStore generates fully compliant paperwork automatically so developers can launch faster without getting stuck in legal paperwork.

Happy to answer any questions about the French encryption filing process or when you might need to file.
by nake89 | 2025-04-28 14:34:57+00:00
Creating a modern development environment for win98. Currently I’m working on a git client. I have no patience for learning C. So backporting git is not an option. I also don’t want to use cygwin. So I’m using a server to expose git as http endpoints and coding a git client in php to use in msdos. I have Vim 7.3 and and gnu coreutils working in msdos already. So soon I will have a very nice dev environment. I want to create a one click installer which gives you xampp, vim and then all the tooling I’ve created. I’m also interested in creating SPA that works in IE5.5. But I’ll do that when my tooling is ready.