skysight-inc/HackerNews huggingface dataset:
Gauge symmetries are local symmetries. In case of the complex temperature field you can change the imaginary part of the temperature at each point independently without any physical effect. Global symmetries on the other hand are meaningful, for example spatial translation and rotations and time translations in Newtonian spacetime are associated with the isotropy and homogenity of space and time and also the related conservation of momentum, angular momentum, and energy. And of course your example of changinging the reference potential is also a global symmetry, not a gauge symmetry.
LOL, that gave me a laugh. Thank you for the entertainment.
Nintendo also said the DS didn't compete with the GBA and the Game Boy line would remain a third pillar.

The GBA was abandoned the day the DS launched. 3DS game releases have also almost entirely died with the Switch's success.
> Don't plants require carbon dioxide to grow?

Yes, but they also require other things to grow, so the scaling of their growth with rapidly increasing atmospheric CO2 concentration isn't as impressive as some people imagine, and it's only been empirically demonstrated in the short term. As far as I've read, the main uncertainty as to what happens in the medium-long term relates to how much nitrogen is available in the soil, and how the nitrogen-fixing topsoil ecosystem adapts. If it can thrive in such a way as to fix more nitrogen, that could lead to further plant growth. But it's also plausible that the rapid shift in the environment disrupts that system and leads to a regression in plant growth rates.
Yes, I'm arguing that doubling the price of gasoline with a carbon tax and dividend will increase economic efficiency. But claiming that doubling the price of gasoline is a "free lunch" doesn't pass the sniff test. :)
> Does even anybody remember the good old HTTP basic acess authentification? This is one of the most accessible ways of protecting ressources, it can be consumed by any HTTP client (!), and it is just reduced to the basic.

Basic authentication is fine if all you need is to control access to documents, but it can not be used for access delegation or any scope control.
Hongmeng OS Is Faster Than Android and macOS
Reminds me of "global dimming", which may counteract global warming. BBC Horizon had an episode about it a long time ago.

> Global dimming also creates a cooling effect that may have partially counteracted the effect of greenhouse gases on global warming.

https://en.wikipedia.org/wiki/Global_dimming
What kind of crap response is that? Ask any 100 people on the street about any industry specific tooling or terms and you're likely to get nothing. Go ask people 100 people about "liquidated derivatives" and see what happens.
I am comparing parts of the summary to what I understand of https://en.m.wikipedia.org/wiki/Francis_Fukuyama
That's not how any captchas work. It's more like a challenge/response mechanism, so there would have to be a standard for defining a challenge and accepting a response.

The client would take care of displaying the challenge, and taking and sending the repsonse.
I’m 20. I Have 32 Half Siblings. This Is My Family Portrait
Many things aren't trivial, but some things are! For instance, the following is a program that uses a well-defined, user-friendly api for regex pattern matching.

extern crate regex; // 1.1.8

fn main() {
let pattern = regex::Regex::new("(?i)resource not found").unwrap();
let msg = "resource not found".to_string(); // didn't have to convert to String as &str suffices

if pattern.is_match(&msg) {
println!("found pattern in msg");
} else {
println!("did not find pattern in msg");
}

}

Clearly, this is an easy example and when used in the wild, you'll have to account for error handling. However, whatever isn't trivial exists for a good reason. Trivial comes at a cost. One thing I like about Rust is that it lets a programmer decide what costs to assume.
Biomass does come from the outside though on earth - rainfall and photosynthesis are sufficient to increase the mass unless said farm is a closed cycle hermetically sealed dome.

That said it still could run into problems with other requisite elemental depletion in soil even with assistance of things like bacteria. If the plants need calcium and it is all extracted then thr farm would be limited to simpler life that doesn't need any trace elements. If say algae can get by on just atmospheric gas components, water, and sunlight indefinitely then a hypothetical algae farm could run indefinitely. But there isn't much of a market for algae.
Why not both? A client-side adblocker can obviously do a better job at blocking, but DNS-level blocking removes crap from most applications on any device, not just from browsers.
Because a lot of them have reputations for having released successful bundles in the past. That's precisely why you shouldn't trust them. :)
To me that's more like splicing PC components into a Macbook Pro. It doesn't prove or explain how they both evolved from a Tandy computer.
So I have about three hundred at any given time. As for waste, I don't worry too much, like fish the young eat the feces of the adults. In the last six months or so the 60gallon tubperware they live in has accumulated enough wase to cover the bottom about an inch deep or so
If "the most effective thing is going to be an ad blocker" then I'd encourage people to check out the Brave Browser (https://brave.com/) which has ad blocker built in and will actually pay you for viewing ads.
I can live with that. Sacrifices were made for the Switch Lite, too.
Because that's when you can get a license in many states.
So that’s why it’s always traffic stuff.
It's not a bad argument but I've tried both ways and the practical route gets devs using git much faster than trying to start with concepts.

If this were a class on git I might agree with you but Im in the business, not the classroom so it's all about time to productivity for me.
>There is always a willingness to support users who have visual or other accessibility requirements, yet users who want or need to disable JS are often left out in the cold.

Because accommodating disabled people is mandated by the ADA. No such requirement exists for noscript users.
I think the parent was referring to the mining and manufacturing of lithion ion and other components that go into a car.
It makes sense for large families, college students, kids who haul everything in backpacks, frequent travelers, and people who don’t own televisions.

I never take mine anywhere, and will definitely be looking to trade-in.
Hey, you are "the" Benson Leung!

I still believe that an error like that one is something that can happen (unlike a number of errors/mistakes you happened to find/highlight over the years).

I am not saying that it's "normal", only saying that I can understand how someone could miss this aspect.

Engineering is not (or should not be) "following arcane rules in various specs", good engineering is making things as simple as possible (but not simpler) and have them working.

The engineer failed in the specific design, but IMHO the whole set of engineers that wrote the USB standard failed in making things simple enough.

If we take another (unfortunately) "common" standard (one with which you are not maybe so familiar with) UEFI, its specs are more (last time I checked) than 2200 pages, is it so surprising that its implementation in many boards is not fully-fully compliant to them?
Very true. I also raise Dubia roaches, which are very different to those common in the western world
Ocean acidification causes a lot of problems. We depend on those ecosystems too.
We don't have time to wait.
A working train without tracks is non-working machinery. They only laid down a mile of tracks for the show
We live in the safest time ever, yet some people don't realize or refuse to believe it. I blame media bubbles.
Shouldn't democratic governments, i.e. of the people, have a vested interest which outweighs the others?

Unilaterally installing public infrastructure for renewable energy would remove all of the other concerns - forcing the 'vested interests' above to get in line.

Effective governments are already doing this.
In the US, go with "visually impaired." That's an accurate description without any baggage, and it also tells you what needs to be done to make the technology accessible to them.

It also describes people who might have limited sight now, but will have full sight later (recovering from surgery, etc). And that is something that could happen to any of us, so we should be building all our tech to cover at least common edge cases, if resources don't permit covering all of them.
> Really, there is no reason why a form should require JavaScript.

True. But I'm glad to use Javascript on forms where fields are depending on input from other fields.

Or when you want to give the user the option to submit multiple entries of the same field type. For example when you ask for a job history.

Yes you can sumbit the form on every step but this is much harder to develop and has a lot of negative interactions for the user. For example the scrollposition is gone on each submit. And the user has to wait for a reply from the server on each submit.

Javascript is not the problem, bloated and spammy websites are.
What Micro-Mapping a City's Density Reveals
That is exactly what full control means. Your lack of training is no excuse in the eyes of the law.
Ask HN: Acquisition interest by a competitor, please share your advice
I'm a single founder of a B2B products startup that is bootstrapped and profitable. Within two years of existence, it now generates $250K annual revenue, and the satisfaction levels from our customers are surging. We are venturing into the SaaS market with a novelty product across multiple verticals (Supply Chain, Logistics, Health-care, etc.) which would offer better flexibility for customers, both technically and financially. Things are going well, and we are growing organically.

I have recently been approached by a competitor with interest to acquire the startup. Before that, I was contacted by two other interested parties but didn't consider it at all. Although I view this as a hint that we are doing things no too bad, I'm not convinced that acquisition is the way forward for us.

Would you consider acquisition over let's say, external investment or staying small and doing it all by yourself? How can I safeguard my startup in case the acquirer's motivation is only to clear up space and not to help develop it further?
Mine was a 2010 base model, but by 2015 I had grown weary of it's limitations.

The form factor was just amazing, and even though the Core2Duo CPU wasn't anything special, with the SSD (at the time, they weren't very common) it was still a very usable machine. The battery life was my biggest complaint, only about 4 hours, and they didn't fix that until 2014.
Because people don't like to confront the reality of the problem.

“It is worse, much worse, than you think.” - David Wallace-Wells, The Uninhabitable Earth
I agree. But you don't need completely abandon the GUI. There are modern browsers like Pale Moon that reject the idea of the browser as the new OS layer and don't implement all the new attack surfaces and CPU wastes. Combined with NoScript temp whitelist only you can browse normally but without most of the resource wasting (ie, ram usage from multi-process, web(gl/etc), and the like. I regularly do hundreds (ie, 300+) of loaded tabs with less than 2 GB of ram used.

That said, I still use tools like youtube-dl on most of my computers and IRC and RSS and all the rest.
I tried to think of a good synonym (“differently abled” “visually challenged”) but nothing really felt right.

I think the phrasing itself is problematic because it describes some people as broken or less than whole. That puts the emphasis on something wrong with a person rather than something wrong with the system.

Better to talk about the system: “this makes the site less accessible.” Because really, that’s the issue. It’s what you have control over and where the problem lies. Software engineers can change a websites but not the people using them. People should expect websites to accommodate their needs, not the other way around.

Respect is the core principle here. Respect your users and enable them to come as they are. Don’t place the focus on their weaknesses, regardless of what those are or why they have appeared. Focus on how you can build a system that’s accessible to everyone.
For what it's worth - Yahoo did not build Delicious (Del.icio.us) - They bought it and left it to die much like they did with Flickr R.I.P.
There's no way to pass such a law without it seeming agist - because it would be.

It seems to me, probably naively, that the easiest way around this would be to require yearly tests for everyone. You're driving a huge honking piece of metal at 60+ miles an hour down the street; a yearly verification of your ability to do so doesn't seem excessive.
>> arranging windows

>No. Just no.

The smartest thing that developers of window managers on Linux can do (as many have done) is straight-up copy Windows' winkey-arrow behaviour. It's one of those things that should be standard on every system with a keyboard and some sort of multiple-window multitasking. When I used OSX I really liked it for the under-the-hood stuff, but window management was a miserable experience.
I'm pretty sure the parent comment was in jest.
Project Lanai: Java2D and OpenJFX Interface for Metal API for macOS
It's a great milestone, and hopefully async methods not far behind in the pipeline. I might be able to port my work to async-await syntax with the first release to stable in ~1.38 but I may wait longer until async methods are addressed. I want to encapsulate state with async behavior.

Updated (as per Steve): inherent methods will be avail and may address my reqs
That depends entirely on how/where you implement this.

You can make your application code check the authorization header, get the username from there and do authorization based on that.
Might be a straightforward translation for non-native speaker. In my language, we regularly use similar sounding word, with no negative connotations.

I'd guess this is the case here, since the word is spelled incorrectly, too.
I don't see what value Nintendo is providing this generation of gaming. Access to exclusive IP?

Between my laptop and cellphone, I have unlimited gaming for nearly free.

It really makes me wonder what the point of consoles are, they are inferior computers but heavily marketed.
It is based on decades of fantastic scientific research into climate change and its impacts. The newer annotated version of this article provides citations: http://nymag.com/intelligencer/2017/07/climate-change-earth-...
> girlfriend leave him around which time he started being super mopey

That tends to happen.

I often wonder what enables people to leave such scathing reviews of someone else's work. Reviewers like you had nothing to do with the production or promotion of videos and often don't pay anything to watch them. If a user feels a channel is going awry, they have no resistance to belittling the creator and doing so with a total lack of empathy.

Sure the anonymity is a huge factor that doesn't make someone care enough to write about it. It's as if you felt a sense of ownership in Cody'sLab and he let you down when he began to display the negative affects of his real live in the videos he created.

Your feeling of ownership over something you have done nothing to earn is entitlement. YT creators are just people and they don't get paid a lot. They are constantly chasing an algorithm created within a labyrinth for which they have they have no control over. They feel they need to create and post weekly or they will be penalized. Once they achieve Internet influencer status they find it is a very lonely depressing place to be and everyone watching has demands yet provides no money and no help to create. It's frankly disgusting to see people behave this way.

https://www.youtube.com/watch?v=x1mv0vwb08Y

In this video Cody'sLab clearly spells out that he's going through a hard time in his life. He's allowed to be human. If you don't like it just move on and shut your mouth. Have some dignity and allow others around you to reclaim or maintain their dignity and self-respect.
> it is really not that useful for designing real-world computer systems, where we want data to be consistent

I believe it was "Life Beyond Distributed Transactions"[1] that showed an alternative approach that often works without providing globally consistent data. I've done a few thought experiments in the past, where I tried to design some systems without transactional consistency. Its not necessarily easy, but it often (although, I assume not always) can be done. Whether the extra effort is worth it or not, depends on your specific needs and goals, I guess.

[1] https://queue.acm.org/detail.cfm?id=3025012
Avoiding discussing a particular issue simply because you don't want to refer to people as handicapped or disabled seems absurd to me. Language is a tool, and we shouldn't reduce it's effectiveness simply because we are afraid of offending someone. Some people in the world are disabled, I think it is far more offensive to avoid talking about them then to use the term disabled or handicapped - how do you think it would feel to be a disabled person, and have people think that it is so offensive that they don't even feel comfortable saying that disabled people have a hard time on the modern internet?
Agree - if you hate your freelancing setup, consider a change in setup. I've basically got it where I have two long term ongoing clients where I'm effectively a part part time remote employee. Weekly checkins, do 10 hours a week, minimal fuss. If you aren't being respected as a professional, consider if your rate is too low. I'm charging $125/hr and it's actually increased the quality of clients. Of course this assumes you are sufficiently good enough to be worth a high rate and can self-manage.
> On the contrary, most changes proposed reduce the quality of life, reduce choices

People keep saying this. I am not really sure what they mean by "quality of life" any more.

"But when you type hangers into Amazon’s search box, the mega-retailer delivers “over 200,000” options." [0]

I don't think that if the number of options was reduced to a handful my quality of life would go down significantly.

[0] https://www.theatlantic.com/health/archive/2019/05/too-many-...
I assume the lack of video out is a deliberate crippling to differentiate the offerings and their purposes
For further context, I found a table of wages from that era (since the CPI calculator only goes back to 1913).

https://libraryguides.missouri.edu/pricesandwages/1890-1899#...

It looks like $2 was the daily wage for many skilled people during that era. Train conductors made about $3 a day, a carpenter would get $2.05, and an unclassified worker made $1.65.
> I am honestly very worried for my friends and relatives who drive

Any worries about friends and relatives who walk?
And that is where your comments are a microcosm of the greater political picture: I don't have to agree with either of you.

> It's not my fault if you choose to agree with him instead of me.

Do I agree that white males have to chop off their penis to be hired at Google? No, but what is the average testosterone level of the males at Google vs the greater population? That would be an interesting data point.
They mention in the article that there are some games that won't work on the Switch Lite.
They are very apt to be hit and killed by other bad drivers in that slow vehicle.
In my cultural bubble, handicapped and disabled are used relatively interchangeably, and I'm a native English speaker.
Great idea as a way to benefit readers and the author of the post.

The first ~half of the book (prehistory) was much better than the second. Even then, I recall the author missing some rather significant points.

For example, the hypothesis that megafauna die-offs were related to the appearance of humans minimized one of the biggest, non-human contributors - the recession of glaciers at the end of the last Ice Age (Pleistocene). The accompanying environmental dislocation is enough on its own to explain the extinction, but you'll find almost nothing about it in the book.

It's almost certainly no coincidence that the early phases of what we think of as civilization begin to appear very soon after the end of the last ice age. Yet the author seems to blithely skip over that looming detail as well.
Well for example, in the U.K, neither understeer nor oversteer is taught when learning to drive. Whose fault is that? The 30 million drivers who have never heard of it or practised it, but have otherwise satisfied the legal requirement to drive; or the legislation that mandates the procedures that must be taken to pass a driving test?
Yep. Imagine a ground plane and a positive +12V pole able to supply infinite amps.

You can short circuit using your body and you'd probably feel a tingle (your body resistance is not high, but not too low either). But if the ring you're wearing on your finger is causing the short circuit, thousands of amps will flow through it, as it has an ultra-low resistance, and heat it up to temperatures that will quickly cause burns and whatnot.

If the device does not have infinite amps, then this is the case where normally the power supply's fuse would blow, and thus the ring would never heat up and nobody would get hurt.

To summarize: Low-voltage, high-current electricity is indirectly dangerous, whereas any high voltage electricity is inherently directly dangerous.
Yes, there are such cases. Though how often this occurs is up for debate:

* https://www.snopes.com/fact-check/chinese-drivers-kill-pedes...
Yep, I let my 4 year old play a 2DS, the Switch is too cherished to let them run around with, kids get mad and throw things.
Could you name some of these problems?
For others that are unaware of who this is, first paragraph from his wikipedia page:

> Svante August Arrhenius (19 February 1859 – 2 October 1927) was a Swedish scientist. Originally a physicist, but often referred to as a chemist, Arrhenius was one of the founders of the science of physical chemistry. He received the Nobel Prize for Chemistry in 1903, becoming the first Swedish Nobel laureate. In 1905, he became director of the Nobel Institute, where he remained until his death.

https://en.wikipedia.org/wiki/Svante_Arrhenius