skysight-inc/HackerNews huggingface dataset:
While scientific approach would be nice, it is hard to do, and even harder to do correctly in the way applicable to the specific situation. And in the absence of the research, all we have is intuition and anecdotes.

And they work both ways -- there are anecdotes that making code beautiful leads to better outcomes, and there are anecdotes that having ugly code leads to better outcomes.

This means you cannot use lack of scientific research to give weight to your personal opinions. After all, that argument works in either direction ("There is no evidence that leaving duplicate code in the tree leaves to worse outcomes... A true science would provide...")
Russia mulls legalizing software piracy as it’s cut off from Western tech
Spreadsheets for Images [pdf]
So far this seems fun. A little better than the map guessing one because there is no way to cheat by looking at a map or dictionary and could be a fun way to expand ones geographic knowledge.
My rule of thumb is that at a bar, if a beer costs less than 6 or 7 dollars, it's a $1 tip, more than that $2. Cocktails get a bigger tip, depending on the complexity of the drink, but typically land somewhere around the 25% rounded up to the dollar mark.

If you're on a tab, you tip at the end, but a slightly larger cash tip on your first drink will get you much faster service the rest of the evening.
What's the most difficult conversation to have with your manager?
People of Russia should protest it's government. It is in their hands. Not saying that it is easy but there are people dying in Ukraine because of Russia.
I definitely agree with a lot of the complaints. I truly don't understand why so many computer calculator interfaces are so awful.

I've been using speedcrunch for a couple of years now and it scratches most of the itches for what I want out of a calculator. It looks fairly similar to Chalk's design as well. Very nice interface!
Interesting but I notice that the Emacs calculator (calc.el) isn't in the comparison. It is what I use for quick calculations most of the time. There was also a Mac program called Milo a long time ago that was very cool. I never had a chance to study it though.
I use Cura. It’s across FDM printing techniques and is (somewhat) akin to the errors in subtractive manufacturing. Subtractive errors/inaccuracies tend to be of the type that remove too much material. Additive errors/inaccuracies tend to add material.

My models for FDM often include a “hole size compensation” user parameter and I tweak it to introduce an offsetting bias in through-holes. (Non through holes tend to get heat-set brass inserts, which are more forgiving of the 0.1mm or less radial errors.)
See screenshots on the last page of the pdf.

Via https://twitter.com/disconcision/status/1500909492049006592/...
Please stop posting flamewar comments. We ban accounts that do that, because it destroys what this place is supposed to be for.

If you wouldn't mind reviewing https://news.ycombinator.com/newsguidelines.html and taking the intended spirit of the site more to heart, we'd be grateful.
What would have been the thought half a year ago?
> Are there any "math for people who just want to use it" tracks in math pedagogy?

Use it for what? That is the question. If you pursue the what, you will inevitably be exposed to genuine ways that mathematics may be employed by it.

The academic standard for "learning math" is like "learning programming" by reading the C++ language/STL spec from front to back. No one productively learns programming that way, and even if someone did, they would hardly be well off when faced with a real-world production C++ codebase that follows $BIGCORP's inhouse programming style.
Should really detect circular movement on a touchpad. That's probably truest to its original form.
I think it just means that the whole reactor itself IS a module, can be removed, put on a truck, repaired, upgraded, and replaced as needed. Here is a Wikipedia link that has a picture of one. https://en.wikipedia.org/wiki/NuScale_Power
I mean for Flight Simulator, it's several hundreds of TB of data stored on Azure servers for all the maps services - I do see the appeal, and it looks like MS is not charging past the initial fee. But this seems like a very fringe use-case, I don't see a lot of other applicable ones.
Having just added some fragment caching as well as cache headers (basically cache do...end around view fragments and some fresh_when in controllers) - at a glance it looks like there's a lot of low-hanging fruit for increasing performance in the thredded code-base.

The project i adjusted was an old rails 3.2 code base, and in addition to fixing some missing db indeces - the caching sped things up significantly (10-100x, from atrocious to acceptable).

I sometimes get the feeling that no-one using rails ever read the cache section in the guide.

https://guides.rubyonrails.org/caching_with_rails.html

Caveat: there may be callbacks and authorization hooks in thredded that hamper this approach in practice.

For a new project i would probably try and go with "fresh when" (http caching) and varnish or fastly.com in front.

But fragment caching can make a lot of difference too. More than I expected.

Ed: although I can see why it might be missing - the upstream demo feels plenty snappy - so for most uses, extra caching might just be extra complexity for little gain.
> This is where I did a spit take. I was really underestimating the capacity for these "mini" reactors. Being able to power so many homes (and being more centralized than I thought) means these reactors would still require huge infrastructure investment in order to spread the power.

This is not only untrue, it is the opposite of true. Centralized power sources mean you can build generation facility close to places with energy demand (usually population centers).

People keep touting decentralized grids as some sort of advantage over centralized grids. It's the complete opposite. A decentralized grid needs more transmission infrastructure to connect large areas often far away from where energy is actually consumed. Renewable projects are often blocked because transmission infrastructure can't support them, e.g. [1].

1. https://www.vox.com/videos/22685707/climate-change-clean-ene...
If it's building shadow, I just fixed a bug where multi-tiered buildings only displayed a shadow for their ground floor, not the whole building.
We've banned this account for breaking the site guidelines. Please don't create accounts to do that with on HN.

;https://news.ycombinator.com/newsguidelines.html
This is just a list of events. The first half of which didnt even have a systemic impact on history. "9/11 was a transition from Peacekeeper to Warmaker" is cute coming from an author who lived through Vietnam, Korea, Chile, Angola, Nicaragua, Colombia, Panama, and Grenada.
I think you mean 100 mcg.
Proofs are indeed very practical. For example, I believe Leslie Lamport mentioned somewhere that he only came up with the final version of Paxos once he tried to prove it, and noticed that some condition he assumed wasn't necessary at all.
No. But there are many great, moral, and legal uses for garbage bags which can be advertised.
Concentrated attention over long periods of time.
>It does not even begin to engage with the idea that knowledge and education can have value in and of itself enriching people's lives, building a shared culture, improving social mobiliity, decreasing inequality etc (rather than being a means to an end, in this case being productive).

1. Doesn't "improving social mobiliity, decreasing inequality" fall under "value in and of itself"? In other words, the way by which education does those things is by giving the attendees "skills and knowledge to be a productive worker".

2. While I'm sure it's possible to argue that "enriching people's lives, building a shared culture" is one benefit of education, that's not the primary reason for it. The primary reason why post-secondary education is funded is for the productivity benefits. While the government also funds organizations/activities aimed at "enriching people's lives, building a shared culture" (eg. community centers?), I have a hard time believing that the electorate is willing to subsidize "enriching people's lives, building a shared culture" to the tune of thousands per student per year.
> It might be sufficient for one million small efficiency apartments, assuming they are well built, equipped with modern appliances and not over occupied

So I live in a small, not especially energy-efficient Victorian-era London apartment with my partner, without fancy appliances. The boiler is gas-powered but the cooker is electric. And last month we averaged about 6-7 KwH/day, and this was working from home 90% of the time.
The analysis in this article is just plain bad; it came up in another UFO discussion about nine months ago. e.g. see here: https://news.ycombinator.com/item?id=27355333

The article is published in a journal the subject matter of which has nothing to do with UFOs, or flight dynamics or anything similar. It does so happen that the principal author of the paper is the editor-in-chief of that journal however; and the publisher of the journal has been on-again-off-again the lists of predatory publishers for some years.
Just a more efficient way to inflate the currency!
AFAIK Luxembourgish is used only in Kindergarten, not in higher school grades.
Please do not post unsubstantive or flamebait comments. It's not what this site is for, and it destroys what it is for.

https://news.ycombinator.com/newsguidelines.html
Do continue! I love these little projects, and it's a great start.

Could I ask a question, I haven't done much React (much more Vue.js and loads of jQuery/plain js in the past). Why have you decided to use both React and jQuery in the implementation? Did React lack support for something you needed that jQuery made easer without just going for plain JS?
Yeah, yeah - get in line, buddy.
https://imgur.com/a/snP071C So much ads on this website …
POTUS is a very low bar...
Thanks to Show HN I will be given tons of links to softwares I would never have found by myself :-)
Open Source Zone grinds away at patent trolls
> hard time believing that the electorate is willing to subsidize "enriching people's lives, building a shared culture" to the tune of thousands per student per year.

Beyond a high school diploma, that is? Not like that prepares you for very much these days, and mechanical/trade education is treated as second-class.
Seriously. I'm not an actual software developer, I do systems admin and DevOps config whacking. If I have to bring up an IDE to write something I'm waaaaay out of my wheelhouse. I don't touch JS, React, Java or any of that stuff. So this "technical" interview would tell people absolutely nothing about the skills needed fort my job.

This is a software engineering test only, and very specific stacks at that. It would be a waste of a person's time unless that was the exact stack they used in the past, or was demanded by the job.
NASA doesn't mess around with simulators. I've read accounts from astronauts and ground controllers where they say their actual missions feel anticlimactic after all the insane things they had to do in the simulators. Gene Kranz managed to crash a simulated Apollo mission into a mountain.
If you click and hold on a touchpad, it does work while moving in a circular motion. But you'd have to click first.

It would be interesting to use the cursor motion without a click though.
I'm not particularly surprised. I always knew this day would come. In fact, I've been wondering why they haven't done this for a while. Maybe it's time to invest in a good VPN / Tor.
I think, the problem is, proofs are what makes math useful.

This might sound a bit dense, but the alternative is what 90% of programmers do every day.
Are these going to produce 470MW?!

A 1MW wind turbine costs ~$4M and is competitive with oil/gas.

At $2.4Bn - anything above 400+ megawatts sounds like a great deal - since you don't have to worry about the wind blowing or the sun shining.

If these can produce 470MW at that price - what has been the hold up?!
What? Arabs don't play western video games??

Most of us understand the need to employ reason to overcome the worst elements of our nature. After all you could argue it's in our nature to want the benefits of making people work for you without having to pay them. Fighting that was 'wokeness' at one point too.

Modern tribalism has been shit for humanity. It's an impulse we also need to ditch.
The term "fossil fuel" is not (and never has been) a synonym for "non-renewable".

Nuclear power is non-renewable, but it is not a fossil fuel.
Once I fell victim to The Dirty Bong Vulnerability, when the cat knocked the bong over onto my Dell laptop's keyboard. Fortunately I had the extended warranty, and the nice repairwoman just smelled it, laughed at me, and cheerfully replaced the keyboard for free. No way Apple would have ever done that.
But a clear path to better oneself is the dream of a modern society. No one is promising equality of outcome. But we should work towards equality of opportunity. With this system in place, a person can look at the market, put in the effort and better their situation in life with the greatest chance for success.

If you treat it as an investment in your citizens that on the average will bring a return on the investment(in the form of a better educated workforce able to contribute to the country's bottom line) then you can have a scenario where some major in underwater basket weaving while others take a chance on STEM degrees. On average, the country is better off. In the end, the opportunity was there for all.
Will China Take Over Uganda’s International Airport?
Please don't post unsubstantive and/or flamebait comments to HN, no matter how frustrating something is. It's not what this site is for.

https://news.ycombinator.com/newsguidelines.html
Spivak’s Calculus reignited my interest and appreciation in math. Sad to discover the author passed away quite recently. The way of explaining principles and making you do the hard work via problems which I believe is a must with this book, is profoundly astonishing. There’s a lot of mathematical insight packed into those problems, it almost feels you can build up the entire high school and the early uni curriculum from the ground up, for instance there are a number of popular formulas you’d arrive at and derive accidentally while working on those problems. Furthermore it really works your brains by making sure you can reason within the established framework and exercise great doubt. I’m taking this book very slowly.
Yes. Actually if you go back a few decades, Iraqis would have more in common with Americans.

Ukraine was behind the iron curtain.

FWIW I don't think it matters and you should care about humans because they're humans.
If you think one step further, there will be _only_ the digital dollar. No bills anymore. This means total control about your transactions and what you are doing with your money, because it is digitally tracked.
You're right Kodah, "call-out culture" is toxic. Bad choice of words
on my part. And yes, some people delight in turning a genuine error or
manufacturing fault into a public flogging spectacle of a company that
can do nothing right no matter how sincerely it tries.

What I think I object to is the calculating tone of the article, and
the attempt to paint it as quantitative (and so implicitly rational)
"research". Of course there are many interpretations of how brand
value varies with visibility of arbitration, so I just proffered one
(that maybe the PR people dig their own graves).

> The middleground I've seen to this is where companies provide a
transcript or recording of interactions. That puts the user and the
company on equal footing while reducing the chance of brigading and
other bad behavior commonly used on Twitter.

Because of the power asymmetry I feel there is something sinister
about a large company able to use "no-reply emails", stonewalling, or
employ an entire legal team against an individual that makes it not
okay to try taking a conversation initiated visibly to a place with
less public legibility.

I'm not a Twitter user or reader, so quite naive as to how bad things
get there. Reliable friends tell me "it's a sewer". I do understand
that mobs can be nobs. I have had to firefight product mistakes with
large numbers of unhappy users, and yes transparency is powerful. We
published the Slack and ticket stream on website, and that cooled hot
tempers and even had some of the users advocating for the devs in
comments.
Needs to take into consideration acceleration and velocity and correctly model the physics of the bounce / overshoot characteristics. Note that this only works and makes sense if you're able to render at a high enough frame rate to make navigation at high speeds possible. I'm not convinced this is a better way to scroll a web page...my Logitech mouse has a scroll wheel that you can click to enable acceleration/velocity scrolling (based on the actual physics of the wheel itself), and the mouse buttons are close to my fingers which matches the analogy of the play/pause etc buttons on the original ipod wheel, without any added UI taking up space on the page.
War driving back in the 802.11.B days gives me fond memories. Though I never tried anything as cool as your cookie-tenna.
Well, "History is written by the victors".
Susan, I greatly appreciate this list and will definitely come back to use it as a reference if I need a book recommendation. (I don't think I'm the target audience, although who knows what the future brings..)

That being said, I think you are missing out on an opportunity to reach a wider audience. It bugs me a bit that the requirements seem very American-centric. What I mean is the following bit:

> A high school education — which should include pre-algebra, algebra 1, geometry, algebra 2, and trigonometry — is sufficient.

And later the paragraph on "pre-calculus".

I know that many places don't have such names for courses in high school. In fact, often it's just called "Mathematics" and you either take it or you don't (obviously there is a spectrum here).

How is a prospective (non-American) student to know what is covered in Algebra 2 in an American high school?

I'm not asking you to change the article, I just hope I can nudge you into realizing that the text as it is now is more difficult than it needs to be for non-Americans.
I have a decades-old math degree and ended up working in tech as an engineer. Are there options, like a "Math Camp for the Middle-aged" where I could get a chance to re-learn everything I've forgotten?
Quick, someone find a carpet to sweep this under!

In all seriousness, I hope that the Galileo Project comes up with the goods in the next few years - https://projects.iq.harvard.edu/galileo/home
I remember how damned amazing the display on the iLamp was. At the time, if you weren't directly in front of an LCD display, everything got dim and you could practically read the G4 display from the side. Kids today don't have any idea how bad those early generation LCD displays.
Did you check all possible outcomes of the chart? It might be that most of them are quite apt.
Spotify R&D on CNCF project Backstage – Podcast
Frink: The Next Generation
Reading aloud can help you retain information. https://www.medicalnewstoday.com/articles/320377
There is a massive difference between allowing anyone to have an account at the Federal Reserve vs only commercial banks.
Did you ever listen to "Geeks in Space", the Slashdot podcast from before podcasts were a thing?

IIRC they recorded sporadically around 1999 and 2000, just talking about whatever had been on the front page recently. I've thought about doing a sort of retrospective, listening to each one and writing a blog post about what they found interesting... it's a neat peek back at a different time and a different culture.
I'm wondering how long Putin will keep the population obedient enough, by rising threats. At some point, when the people see they're losing everything, fear of jail is not enough to keep them quiet.
Yes people are trying to find reason there. Thing is that there is lot of power in few hands there. Individual can be reasonable but often is not.
Link for convenience: https://prodscape.net
Cool project! Something to consider: "Transformer"[1] is already used to refer to a popular element of state of the art deep neural networks, especially ones that are used on natural language, i.e. text. That might make this name a little confusing for people who have a foot in that world, especially since "Universal" and "Text" are also words thrown around in similar contexts.

[1]: https://en.wikipedia.org/wiki/Transformer_(machine_learning_...
Insect
Completely agree. (I was just reporting.) IMO, the confirming text of all sources should be instantly viewable by all users. But at first and by design, only the most-experienced editors learned-about and gained this capability. Sez something to me.
I once worked with someone who genuinely fell for that video, he also had his bank account cleared out from a phishing email too though...

I knew exactly what the video was going to be before I clicked.
No.. it’s a way to remove the current dollar and therefore the complete debt of the US
Very cute but that’s why he’s a comedian I suppose.
Calculus and linear algebra seem to _totally_ dominate the curriculum in most (all?) countrie.

What about meta-mathematics? Topology? Logics? History of mathematics? Philosophy of mathematics? Combinatorics? Number theory? Discrete mathematics? Graph theory? In the post, the fieds under "electives" are by far the most interesting ones, IMHO.

And I fully agree, in-depth knowledge of probability theory as well as descriptive statistics and of course the application to systematic and sound decision making is absolute key, and ought to be taught to anyone from medic to policy makers (scary: Gigerenzer showed that medics tend to be confused about the difference between P(A|B) and P(B|A) - the very people whose job it is to diagnose whether you have cancer or not!).
1. (US) military pilots are trained to recognize the shortcomings of their sensory perceptions in this exact regard.

2. This doesn't explain the many, separate close-up encounters, such at the Nimitz and east coast/Atlantic Ocean encounters.

PS: FWIW, I don't think these things are extra-terrestrial.
I rarely use cash as it is. No one is controlling my purchases.
What I wrote isn't contradictory, but if you can't figure that out, there's no point in continuing this discussion.
Not really, because Modern Monetary Theorists on the political left have been advocating for people to be given accounts at the Fed for universal basic income
they don't necessarily require ongoing maintenance, it depends how they are coded. some might even say the "correct" way is a non-upgradeable back-end (on-chain solidity contracts) and hash-addressed, ipfs hosted front-end. anyone can then pin the front-end themselves to ensure access or just run the code locally. dapps should rely on centralised, server based components as that mostly defeats the purpose.

uniswap is a good example. when they release an upgrade users must explicitly adopt the new version. in fact uniswap v1 and v2 still see usage despite the release of uniswap v3.
But the distinction is generally not as clear as you may think. (1) Much of the mathematics came from real world problems (so, in particular, one may get drawn into some kind of mathematical research and even end up discovering new mathematical facts). (2) Sometimes when applying mathematics one still needs to employ deduction (derive a formula, prove a statement one wants to rely on, etc.).
a very tasty coincidence then