skysight-inc/HackerNews huggingface dataset:
I have seen several threads on Qt on HN in the past and was always quite surprised on the takes in the comments section here, especially on Qml, but never bothered to write up a reply so far.

I myself am mainly a C programmer, doing low level stuff, with occasional detours into C++ projects.

In 2019/2020, I worked on a larger project replacing a web based UI on an embedded device with something Qt based, not having touched Qt since version 4. Due to some of my older spare time projects, I have somehow become the go-to graphics guy in our company, but usually those issues revolve around questions like "why does the display bridge do those bizarre things?". This projects was IMO a quite interesting excursion outside of fiddling with graphics drivers.

Yes, I was a bit put of by Qml at first too, but eventually found it a breeze to work with. Qml is a language for designing both the UI layout and UI level interactions. Writing code and trying it out was a very refreshing change from having to fiddle with some IDEs Visual UI designer. I managed to cobble together complete mock-up clone of some of the existing UI screens in only an afternoon, rather than e.g. 3 or 4 days as originally budgeted in some cases, spending the rest of the time on "fine tuning" and starting with the back-end integration.

Combined with Qts emphasis on Model-View-Delegate design this allowed us to very cleanly separate the UI from the actual logic, to the point were the UI would work like a LEGO brick stuck on top of the application logic.

Even as a die hard C programmer, I would say I liked working with Qml and it is definitely something they did right.
A U.S. economy decoupling from China is 'almost inevitable,'
Would you consider putting this on youtube or something? I grew up with flash (my first paid job was an as3 project for a medical teaching team) and was always interested in the artistic side of flash

I got to the point where you are talking with the older guy but wanted to get back to work and reference something. I noticed whenever I tabbed to something else the video/audio would stop, so I dragged the tab out of firefox create its own window and it continued playing for about 30 seconds then for some reason it stopped and when I looked it was back at the prompt from the start
Not sure about Germany, but most legal systems have "lesser evil" provisions, so, if you drive a car with an expired license in order to save a life, that should be considered.
Not a dumb question! It definitely has nonzero vapor pressure (quick search says 2e-6 atm at room temp), so by definition it would boil at any pressure lower than that. The moon's trace atmosphere is something like 1e-15 atm. I guess you'd have to put it in a clear pressure container.

But also in this google search, I learned that Hg freezes at a relatively moderate temperature of -39C. The moon surface is far hotter than this during the day, and far colder at night.

Maybe this was the whole point of doing it on the moon?? You could spin the Hg at daytime, and then remove it from the spinning mould at night time when it freezes. If you move the fabricated mirror to a permanently shadowed crater (you've got about 2 weeks to get it there before the sun rises again), it would remain as a perfect optical surface more or less indefinitely. You could fill up a whole crater with big mirrors and make a giant multi-reflector aperture!
The worst thing is that they don’t even last a week, it’s usually more like 3-4 days.

I have a few friends that use those (though I’m trying to convince them to at least get reusable ones), but what I’ve taken to doing is collect their old vaporizers and take them apart to salvage the batteries. I either use them to build mobile powerbanks, or, when they’re not usable, bring them to a place where they can be recycled correctly.

I’m hoping that some kind of legislation will pass soon though, those things are horrible for the environment either way.
I think this is right. To say it a different way - lots of business users won't bother looking at BI stuff enough to help you understand what they want, and when they do look, they want something else. Vicious cycle.
>In Port Isabel, a city about six miles northwest where at least one window shattered, residents were alarmed.

>"There were bowling ball-sized pieces of concrete that came flying out of the launchpad area"

>In June, an environmental assessment by the Federal Aviation Administration concluded that SpaceX’s plans for orbital launches would have “no significant impact” on the region along the Gulf Coast.

There was a thread here [0] a few days ago of a blog post that raised some valid criticism to the way Starbase its conducting its ops and how the EPA is playing dumb around it.

Funny thing, it got flagged and hidden almost immediately, even though it was quite active and getting several comments per minute ...

What I've found particularly disturbing is how some commenters were dismissing the blog post as ignorant, misinformed, a "breathless doom mongering", etc. I wonder if they're on Musk's payroll or if they just shill for free. I'd like to hear what they say about this but they're, conveniently, no longer around now. A classic.

0: https://news.ycombinator.com/item?id=35590279
> but because that didn't produce equal outcomes it wasn't good enough, and now we have equity in its place.

It's about power, it has nothing to do with anyone actually caring about equality. Everyone will be worse of under an "equity" regime, except the nomenklatura
I could not be more bored by people who go off on the indirect emissions tangent. Because it always mysteriously winds up at "so anyway, buy a vehicle/house/plane/whatever which directly burns fuel and will thus never be green".

It's an argument pushed by fossil fuel company's because it pretends the world is static and unchanging, as though the energy mix of the electrical grid can't vary, or that changes in fuel source and process for mining operations to be cleaner wouldn't drastically effect downstream users overall emissions profile.
The issue is large volumes of Chromebooks that aren't lasting very long and cannot be easily serviced. Kids are harder on devices than adults. So while yours may last well into the future it may be the exception.
I don't recall seeing any other reports about the Russian Air Force except those talking about their absence from the war so far.
Stellantis Is Betting on Keeping Combustion Engines Alive with E-Fuel Tests
> 225 Wh/km

Meanwhile, fairly common cycling parameters lead to well under 10 Wh/km at comfortable cruising speeds, and with things like velomobiles you kinda start around 5 Wh/km, and 3 Wh/km is possible without significantly compromising the practicality of the vehicle.

Sure, sure, lower speeds, lower cargo capacity, lower safety, &c. &c.

But it’s still a useful comparison to contemplate, especially when considering the nascent category Lightweight Electric Vehicles, which in its most interesting form isn’t far off “ebike minus pedals”. Cars are still pretty power-inefficient as a general concept.
I like this viewpoint when you are a small company searching for PMF and your entire backend can fit into a small DB.

At one point you'll have to reckon with IO costs and storage once that is over and then you have no choice but to exploit data locality more heavily.

Just saying, YMMV depending on how much data is in your database.
I believe you reinvented the one time pad.
latest 2022-2023 inkscape in windows release totally ruined the text tool. Cannot paste or edit texts anymore, they just gets messed up all the time with spans in the object / layer tree :(
A 6th degree polynomial is firmly in the "fast approximation" category. I think sin/cos are ~15th degree polynomials for 1 ULP of precision.
So on the one hand, why wouldn’t this also cover, say, webmail sites?

On the other hand, how does preventing me from using an extension when finding out when my bins are going to get emptied over Xmas protect me?
That was the old x87 stack, that has been (almost) completely replaced by SSE and other vector instruction sets that operate on 32/64 sized elements. Unless you need 80 bit floats or have a mountain of ancient 32 bit intel CPUs without SSE support lying around you should get the expected rounding behavior by default.
I'm not closely tied to what the NVMe vendors want, so you could be right, but I very much doubt you are given that Christoph didn't flag this when he reviewed the article.

Edit: And to be clear, from my understanding of XRP, the device itself calls back into a BPF function in the NVMe driver. That requires some notion of standardization. It's not exactly offloading directly to the storage device, but the storage device still relies on some standardized behavior in the BPF program, such as divide by zero, what instructions are supported in the ISA, etc.
Yeah, I asked ChatGPT about it too, and unsurprisingly (and unhelpfully) got answers that pointed to every president.
Something you left out here is that the full capacity of the battery can’t be used. Tesla uses more of the battery than other manufacturers, which gives them a higher range per rated watt hour.

On top of that, they have more efficient components. When you compare a model S to a lightweight Carbon Fiber BMW i3, with a much smaller pack, you’ll see that the modelS still squeezes out a higher mpgE rating.

https://www.fueleconomy.gov/feg/Find.do?action=sbs&id=46207&...
One question I would have about the manuscripts would be from an image analysis that showed how many notes J.S. Bach wrote at a time before pausing, where the pressure and indentation from the beginning of a thought to the end of one would be different. Were they written in sliuces and flourishes, or was each note calculated methodically?

It's probable he was copying from a more rough temporary copy, meaning there would have been a rhythm to writing it, and one which might come out in microscopic differences in the indentations of each line on the page. For each piece, I think most musicians who have played those pieces would only need a couple of lines to interpret his accenting.

Is there such a thing as a high frequency radio refractometry that might indicate undulations over the page the way we do it with radar imaging of macro scale features?
Lageos: LAser GEOdynamic Satellite – Message to the Future
What you're describing can be done to great success with the right type of requirements. Say you're building an information warehouse for OLAP style work. Totally makes sens to pyt all the heavy stuff in the DB because the data model is going to be pretty rigid and it's the sort of asset to get enough attention from the business to be supported correctly with a full staff.

On the other hand, defnining everything in code and using the db as a dumb store that's fractionally better than using files is a pretty good strategy when you may be handing over support to a team that won't be giving full time attention to the app. It also handles those key person risks etc by keeping thigns in one area of the app code.
It's a CAN injection, has nothing to do with the immobilizer feature (between the fob and the car) that has a random SK exchanged on fob-car pairing and is mandated (by insurance companies to prevent hot wiring a car) for more than a decade.
I think you'll find that this is actually a masterful success that demonstrates the forward thinking of the Navy leadership. The news media simply are unable to comprehend the genius of this, due to their lack of marine engineering expertise. They love to see people fail.
I love perl, but since it doesn't come installed on alpine docker by default I end up using cut/awk/sed and friends instead. :.(
Are you Australian? Apparently this is what is stopping us from affording a house
This tutorial will teach us how to process a CSV file in NodeJs with Rust and Napi rs. We will use the Rust programming language to speed up the processing of a CSV file and create a native nodejs extension using the Napi rs library.
> I mean that a "fix" can't be implemented in a local, small way

inpainting.
I'm currently working on WebKit support in Boxy SVG (https://boxy-svg.com/ideas/95) and SVG rendering performance seems to be actually better than in Inkscape - especially when transforming many objects simultaneously and when manipulating objects with filters applied.

Igalia has made some massive improvements to the SVG engine in WebKit recently: https://wpewebkit.org/blog/05-new-svg-engine.html
One of the unwritten rules of driving is to try and not hold up or inconvenience the drivers behind you. People get aggravated with large farm machinery holding people up but understand that machinery has a purpose and needs to get from A to B.

The same people think Bicyclists aren't trying to get from A to B but are just out for a ride and happily breaking the unwritten rule. That is where the outrage comes from, they think the cyclist doesn't care about the irritation they're causing the drivers so the drivers decide to take it out on the cyclists.
lol calling ottomans sophisticated and nuanced tell me you are very misguided and are influence by Turkish propaganda. Nonetheless, the ottomans were nothing more than what Russia is today, barbarians, who is always looking to control other civilizations that were more sophisticated. What you see in turkey today is the aftermath of raping and pillaging of south east Europe.
Wonka Candy was a Nestle brand of candy.

US Robotics was a major modem manufacturer (but not robots).

IOI is a large Malaysian palm oil producer.
A progress indicator on the download might’ve been nice
> the term 'global warming' has been swapped for the latter since the average global temperature has gone down for a number of years after an earlier steady rise

You're just going to throw that out there? You'll cite the Fischer-Tropsch process, but not "actually global temperatures are declining"?

Here[1]. The temperature hasn't gone down. The narrative hasn't changed from global warming because of this (the term was in fact dropped because people are idiots and trying to explain what global temperature is measuring in terms of energy dynamics in the climate system doesn't work...). 2022 was the 6th warmest year on record, and based on all data the overall trend is up.

[1] https://www.noaa.gov/news/2022-was-worlds-6th-warmest-year-o...
Graphical design can be fairly complex. Some vector might contain dozens or even hundreds of control points, and a vectorgraph might contain many of layers of vectors/groups. Rendering the graphic itself and the software UI element might be a challenge for browser engines which is not made for this kind of task, especially on slow computers.

I worked for an ad publishing firm many years back, it was common for us to receive vector graphic files that are hundreds of megabyte large. We used Adobe Illustrator and CorelDRAW to handle those files on some fairly fine computers, and yet some graph files from our clients still managed to crash the computer due to RAM exhausting etc.

I image it makes sense for an industrial capable software to want to run as native as possible.

Another thing is color management. Most graphic software supports RGBA, but for publishers, CMYK is also required. I'm not really sure if browser engines supports these color system well enough (not just color conversion between the two, but also color profile for the monitor), because if something is mess up there, it can be expensive to fix (for the ad publisher).
It's crazy no one checked if the area was clear before launching the ship. You would think they had a protocol for clearing boats/objects prior to launch. Or is it so rare that there is no protocol?
What was the ship which collided with a commercial freighter? The command culture seems just completely off kilter in the Navy. Running untrained skeleton crews sleepless.

Might just as well coke them all up, put them on a pirate ship and pretend to be sailing.
Language Models don't see words. They see tokens. So asking them to perform minute operations on letters/syllables/words etc don't work well. Doesn't really have anything to do with Intelligence.

Sentences look something like this to the model, [754 76 4752 67 456]
Looks like a reasonable process to me.
China is.going to have the largest fleet of nuclear reactors in the world, all within a decade or two. We can bitch and moan all we want about their governance system but when it counts they are always the ones doing the right thing while Western governments hold their dicks and piss into the wind.
I implemented something such a thing for Clojure a while back using reader macros (which Clojure wants to not support but thankfully you can hack them in).
Hadnt this only been announced for something like eight hours by the time you posted this? Also I wasnt aware that a coven* of HN hecklers represented the self evident and necessary plurality required to make decisions for any project.

*just feels like the right collective noum
I followed this approach once and ended up abandoning a week's worth of work because it was just far too slow (hours vs < 1 minute) when running on large quantities of data.

>This leaves more room for error and makes our logic harder to test since it can’t be easily mocked or executed with the rest of our application-level tests.

I ended up writing integration tests on the SQL queries. They were slower than the unit tests I had before but 1.5 seconds per test vs. 0.1 second per test was a price I was pretty happy to pay.

In general I would prefer to keep domain logic all in one place but practicality trumps ideology.
I have said it once and I will say it again: You really should think twice about buying Qt embedded licenses. Unless you really need an embedded version of Qt the LGPL variant is probably fine for you.

Everyone who is saying that Qt is too expensive -> It's free. Just Use LGPL. All the tools are GPL but that doesn't matter if you don't want to link against those. The Libraries itself are LGPL so you can dynamically link against them with attribution.

Everyone who is saying that they need the Qt Support -> You probably don't. If you live on the bleeding edge you sometimes get cut. Qt for all its flaws really is fine. And if you get stuck the community will help out just as good.

Everyone who is saying that they already bought into it -> Bad news for you. The license terms of the commercial license are very restrictive. If you are building an application which communicates over a network or building a system which consists of multiple programs you have to make sure you don't integrate or communicate with a program which uses the LGPL variant[0]. Yes that's right, if you pay them money you better make sure that you never run your program on KDE because it would inadvertently communicate with software that you are not allowed to communicate with. Of course you are allowed to communicate with everyone while using the LGPL.

ALWAYS use the LGPL variant! Unless you are not able to work within the boundaries of it.

If you have to spend money you are better off donating to the KDE Free Qt Foundation.

[0]https://embeddeduse.com/2023/01/06/using-qt-5-15-and-qt-6-un...
Ultralight have a very specific set of regulations. 500wh/kg is where you can really start to use it in that application. Currently there are models with electric, but it's about 1 hour flight time (advertised) and you don't have great margins. If you can reduce the weight and get a true 2 hours, then that would replicate the characteristics of today's 2 stroke.

Another point is that it won't take very long for ultralight since they aren't technically defined as an aircraft but as an air vehicle. You can home build them.

Yes, you might see a 10% increase in range with half the vehicle weight. If you tow or take long trips, you want double the range. At that density, you're choosing one or the other, or an "eh" compromise. I want 800 miles and less weight/size. This can especially be useful for retrofit kits for existing vehicles for people who hate all the tech in the EVs.
This is a better link, since it includes the detail that the limitation is for free users. Paying uses can keep on using WebUIs which seems entirely fair.
You Have to Engage with Information If You Want Results
Which was why I didn't say "all" or anything like that. But basically a lot of engines from Ford and Volvo can run on ethanol. Any old iron block can if you replace pipes and hoses. And so on.
Linux desktop will probably have more applications if there would have been less GTK versions.
> lobbying…but it’s primary function isn’t to be evil

Its primary function is to maximize returns. That’s not necessarily evil, but amoral.

Evil in the sense you’re using it is not real, but if it is, then pushing for a local advantage by externalizing costs onto others seems pretty bad to me.

My issue is that lobbying is inefficient and bad overall as it increases the costs spread across the system and focuses the benefits in a specific area. Usually to a net negative. For example, spend $1M in lobbying to earn $2M in benefits at a cost of $100M to the system (see US agricultural subsidies on sugar, corn, etc that help a very small section of an industry at great expense).

Again, not evil in the sense of eating babies or gas chambers or whatnot, but banal and causing harm. There’s not much true evil in the short term and even Nazis (the most evil I can think of) would be perceived very differently had they won (see the opinion on Ghengis Khan).
Why not use quarto to call into a DB? Or why not just add sql support to quarto?
I know Equinor publishes quite detailed numbers from their operations:

https://sustainability.equinor.com/climate-tables

The headline figure is maybe to compare 11.4 mill. tonnes CO2e emissions from "Scope 1 + Scope 2" (direct emissions from the company plus indirect emissions because they buy electricity and stuff), versus 243 mill. tonnes CO2e from Scope 3 (emissions from people burning the hydrocarbons sold).

If that figure is correct, you can add 1.6 percent to the car tailpipe emissions figures to account for production and refining etc.

But this is an oil & gas company that tries very hard and is among the best in the world for minimising emissions from production and refining. I would not be surprised if gasoline from US shale oil is more than an order of magnitude worse.
You Should Be Worried About Substack
Why does Substack, after raising $65 million in venture capital in 2021, need your pocket change?
Sure, if you rebuild an engine to run on ethanol it'll run on ethanol.
Why does everything have to fit in a browser? This trend is really tiresome.
Oh BTW, his ad revenues are down almost 90%. You can't make this shit up, folks...

https://www.thewrap.com/twitter-ad-revenue-plunges-elon-musk...
Greed is hardwired into the human condition and I think it would be absurd to try and persuade people into transactions that would not be in their best interest and think you can have success.

Especially where it is akin to a prisoner's dillema and a few bad actors can take advantage of your good intentions.

My point was if you really care about this issue you need to think about incentives and/or government regulation as a solution - not preaching.
OP here, I'm based in Dublin
Uh, the tug was actively pulling no the ship so it _had_ to be there I assume.
Can't tell if it was the Navy's fault or that of the shipyard. I'm sure there is plenty of blame to go around. Looks like future launches will be done a different way, so maybe it wad a known risk already.
Yes, and there are some inscriptions where this is used, for example in "speech bubbles", where two figures facing each other on a wall talk to each other, with the texts flowing in different directions.
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