skysight-inc/HackerNews huggingface dataset:
The AR-18 was in fact a technically inferior design. In an AR-15/M-16, the big deal with the "direct impingement"[0] system is that all the reciprocating mass is in line with the bore axis, which avoids imparting any angular moment into the rifle making it easier to keep on target when shooting rapidly. The AR-18 throws that away by having reciprocating mass (the short-stroke piston) above the barrel.

And "shits were it eats" jokes aside, the 'DI' system of the AR-15/M-16 is very reliable. If you look at close in high speed footage of AR's and AKs being fired, you'll see that both rifle designs vent a lot of combustion gasses into the receiver when the cartridge is ejected, so the cleanliness of an AK compared to an AR is somewhat exaggerated.

[0] Which is in fact a piston, with the 'piston' being the rear of the bolt, and the bolt carrier forming the cylinder; driven apart when the hot combustion gasses are piped in between them. But this is a controversial nitpick.
I don't think there's an argument to say it can't be great, but, if all carriers move over the eSIM then they could easily limit the devices they will allow on their network - that would suck.
Veonim: Modal IDE Built on Neovim and VSCode Extensions
Yep, it's possible. Looks like you need to prevent the default behavior of the wheel event. Here's a quick example I whipped up: https://codepen.io/yefim/pen/drroer and here's a 5 year old Stack Overflow answer about it: https://stackoverflow.com/a/14810932/597260
I think you're being down-voted because you are sort of wrong about the distances. We could probably get some people to another star. Why we would do that, or what we would tell them (with a five year communication delay) after they got there, is unclear.

For the record, I think your questioning of "what black holes really are" is prudent. The OP article is not prudent, firstly because any of its implications won't be realized for at least 3,000 years. Secondly because our challenge as a society is very much not speculating about this thing Hawking wrote about, and very much is trying to make any of these scenarios useful to us.

Which leads to my fringe opinion that we should try really hard to build a black hole, even if we're worried about it ending us.

"Fuckin' magnets. HOW DO THEY WORK?"
Ask HN: Why do some websites need to be taken offline for maintenance?
I was just browsing italki.com and there has been a notice since morning that the website will be going down for maintenance (it is completely offline now)

It's a pretty huge site I think with lots of revenue and users and it's probably losing money for the time it's down.

So I was just wondering why do some websites need to be taken down while others like Facebook, Gmail, etc never once have shown me such notice yet upgrade seamlessly?
By the way since when do they directly sell refurbished iPhones???

Maybe it’s old news in the US but it look like it’s the first time I’ve seen them in the French Apple store and it’s actually a great news in itself. I don’t trust carriers for refurbishing, but I’ll trust Apple blindfolded. My next iPhone will definitely be refurbished as were my last 2 Mac.
It establishes the upper bound, but I don't believe this paper establishes a lower bound, so the conjecture is still open (a super linear lower bound would violate the conjecture).
The first open source rifles were doubtlessly the flintlocks (or perhaps matchlocks, but probably not wheel locks.)

There were a few lock designs throughout history, but it was near enough to an industrial standard that could be produced by anybody who had the skill and startup funds. Locks were typically made by specialists, then bought in bulk by other gunsmiths who built the rest of the rifle to go with the lock.
K-means has no "training data" per se.
> Certainly not for account numbers, social security numbers, credit card numbers, confirmation numbers, and others.

Those are not numbers. Those are opaque identifiers which just happen to take a form of a number. My DBA teacher always said: If you don't need to calculate it, then don't process and store it as a number. This applies to phone numbers as well.
When I'm doing game dev or 3d modeling or something, I often don't care what the values are, I just spin a bit until they look good. The same goes for angles that aren't on a labeled unit circle, percentages, and most other numbers that can reasonably be >30 or so.

Basically, if "close-ish" is acceptable, then a numeric input makes a ton of sense. And that's the case for lots of things, and most of those things wouldn't be entered with a keyboard (unless you want to get the figure in the ballpark).

If the number is <10 or so most of the time, then a menu makes a ton of sense (number of socks), and include a "custom" option so users can enter their own numbers. I do this with all kinds of things that only need a ballpark number but don't benefit from tweaking (e.g. seconds in an internal; basically, if 10 options or so makes sense, just make it a menu).

I happen to work with graphical things that don't need to be precise much of the time but need more precision that a set of presets. But most retail and whatnot apps are not that.
even for the crud apps so frequently referred to in this thread the equivalent 'real code' is the sql rdbms written in c or c++ no matter what the webapp language is. i don't advocate using python in million line monoliths despite it being my favorite lang in general at the moment but the volume of cognitive dissonance and false dichotomies in this thread is crushing.
The self-made man: on the long and eventful life of Frederick Douglass
In this case it makes sense to be cautious in the scientific conclusion, due to limitations on the methodology. The meta-analysis searched for articles containing the words "insect" and "decline", which could lead to a bias against papers showing stable or growing populations. Knowing how many papers are published it must be incredibly difficult to do a comprehensive studies. I think you can draw conclusions that some insect populations around the world are declining and that some factors (such as land use, monocultures etc...) are involved. Perhaps the headline might be more accurate if it said "there is no proof that the insect apocalypse in here but there are reasons to worry"
Should clarify: I have used an atlas (in fact I had one in my car in 2018 when I sold it), but internet maps have always used that interface, though I do remember that mapquest interface and the similar interface on tribalwars.net before it updated to use js and click+drag map scrolling.
The indiegogo mentioned below for Autoblow A.I. Is mine. We published a paper on the machine learning study on bjs here: http://www.autoblow.com/bjpaper
Just so you know, VSCode can do this too. You just have to set the user preference files.insertFinalNewline=true
Using hydrogen bombs you can get something like Project Orion to about 10% the speed of light, but not much faster. Project Daedalus is a more advanced design with the goal of accelerating an unmanned probe to 12% the speed of light [1]. The only somewhat practical ideas that seem to go beyond that involve antimatter fuel: not quite as easy to handle and well understood as nuclear bombs but certainly more attainable than giant black holes. There are a few designs that should allow travel at 60-80% the speed of light

1: https://en.wikipedia.org/wiki/Project_Daedalus
Input number also doesn't give a very good experience on mobiles too for the reason that at least google keyboard hides autocomplete suggestions for me. The most common number input I do is enter my mobile number and it would be lovely to have autocomplete fill it.

By the way I found typing hero on android just for this. It's a fantastic app for entering numbers and expanding short cuts on android!
AK had its own issues, especially with accurate full auto fire. Adoption of M16, on the other hand, was partially backed by Project SALVO concept of accurate burst being much deadlier than a single heavier round. Originally it was supposed to be about flechettes, but they couldn't make that work. On the other hand, AR-10 was already there with a design that made recoil mitigation a priority - straight stock in line with bore, lighter reciprocating parts, and recoil impulse directed along the bore axis with no lateral component like you get from a piston. So scaling it down to a smaller round made sense.

And the design is not inherently less reliable - depending on the conditions, it can actually outpace AK. AK is more reliable in a sense that it can tolerate more obstructions in the action before it jams; but at the same time, loose tolerances and the design of its safety make it that much easier to get dirt in. So if you dump a lot of mud on both, AK fails first, even when you pit it against the original Vietnam-era M16 design - take a look:

https://www.youtube.com/watch?v=DX73uXs3xGU

https://www.youtube.com/watch?v=YAneTFiz5WU

https://www.youtube.com/watch?v=LyXndCxn9K4
China Airport Facial Recognition Automatically Checks You in for Your Flight
One pretty stupid reason I have for it is that Angular used to (still does?) automatically converts number inputs to numbers in the data binding layer, which is nice sometimes. It's not a very good reason, but it's a reason nonetheless.

Now that I'm using React, I try to use the best type for the UX since I have to do it manually anyway, but with Angular it was sometimes easier to use the slightly worse UX.
iPhone XS is even bigger than iPhone 6/7/8 though :P
Agreed. Its form factor is insanely useful and comfortable. I hope we see a hardware update. Especially if they can get a thumbprint reader in the display.
I think the latter is the only tenable solution.

The former presupposes that A is right, which is unknown a priori. It could very well be that A made a mistake, and B caught and corrected it! Or that B had a flash of genius and saw a better way that A missed.

Which is how we arrived at, and still use in physical engineering, waterfall design. Its strengths were never meant to be adaptability to customer needs, but rather fully specified and communicated interfaces between components. Which is not nothing.
So you mean you've learnt the things the "edutainment" way when you were a child and are resentful for that? I just didn't learn the things in any way in childhood. There was no edutainment, the way teachers taught most of the things were next to impossible to actually understand (I had near-zero understanding of anything in math by the end of high school, only capable to use some formulae substituting) and all the practice was debilitatingly boring.

If Mathigon, BetterExplained, Ivan Savov's no-bullshit books and things like that existed when I was a child that would be a totally different story. I'm so glad my children are going to study with these and better things given.
And if there's only 10 or so reasonable/acceptable options, it should probably just be a menu instead.
I'd say that you have a faulty battery. The iPhone 6s doesn't have the best battery life, but you should get at least one year of heavy usage before any noticeable degradation and 2 years of normal usage.
I'm quite interested in seeing how long iPhone SE will be supported for. I think it is likely that iOS 13 will support iPhone SE/6/6S (i.e. the A9 chipset)
Most people can use spreadsheets, but only a small subset are "programming" in them, the rest are basically using it as a graphical csv editor, at best they'll have a sum calculation.
True and a very good point. I was thinking more in terms of his net worth, house, cars, etc.
While this is largely true. The Middle East needs large exits like these (e.g. Souq, Maktoob) in order for investors and carpenters to be motivated. The Middle East (except for Israel) is really lacking in this arena.
I think it works fine on a phone especially if you don't follow it 100%. On websites and desktops however I just really don't like it. Its hard to explain but the feeling is just bland and awkward.
not sure, but maybe they wanna see how long it takes you to long-click the back button...
I 'downgraded' from an iPhone XS to an iPhone SE. I had misplaced my XS and got an SE temporarily. Best thing to have ever happened - the iPhone SE is the best iPhone apple has ever made.

So much so that I have an XS and the SE and cannot get back to the XS.

I know HN has some weird opinions sometimes that aren't representative of a majority. But I genuinely think if people used this or gave it a shot they wouldn't switch back.
One tool, not mentioned so far, is tota11y: http://khan.github.io/tota11y/

It gives a bunch of inline annotations for accessibility problems and points of concern. Not sure how it compares with the others suggested, but might be useful to try.
Thanks for the comment Diego. I really should write a case-study on this but Parallax Scrolling really put the One Page website trend on the map BUT at the same time paved the way for so many more unnecessary effects in web pages. And I think this is what the majority of Single Page website haters refer to and are not wrong. But yeah, one can't generalize saying all One Pagers have heavy JS and effects. There are some stunningly simple, well executed Single Page websites out there.
As a very infrequent gambler (I love Vegas but make it out there 1x/year or less) it has been fascinating to see how playing a +EV game changes my perspective on casino gambling from "This is entertainment" to "This is work".

Three or four times I have spent an hour at a Sam's Town full pay deuces wild video poker machine, where you wager $0.50 per hand and your expected value is $100.76 per $100 wagered. This works out to like $5/hr with perfect play at a moderate pace. This earning rate is one of the least bad outcomes at the casino -- you'd be spending $10/hr on average at a cheap, slow craps table playing the pass-line bet.

Now, if you're gambling at the casino and the game is bound to earn you money, this should be maximum fun, right? Not only do you get the thrill of seeing whether the random number generator gave you money, but also there's no real downside because if you play long enough you'll come out ahead?

Strangely that's not how it works out. There's some kind of mindset shift between negative-EV-play and positive-EV play.

When I'm losing money at craps or blackjack it's like "oh, this is fun, we're rolling the dice, we're flipping the cards, some of us will probably win a bit and some of us will lose money but we had fun."

When I'm earning money very slowly at video poker it's like, "uhh, I guess the math is interesting here but I think I have fully understood the spreadsheet and, uh, am I seriously being paid $5/hr to perfectly implement a lookup table? Could I be earning more with Mechanical Turk?".

I somehow managed to hit that rare high-variance event once (a natural royal flush, expected every 45,000 hands or so?) and have very little interest in ever playing these slow-burn +EV games again. This in turn kind of makes all gambling boring -- if the +EV stuff isn't worth it, what is the point of any of it?.
its hard to tell if it's irony or not
I would keep my fingers crossed.
A factor that the article doesn't emphasize enough is the extent to which schedule pressure contributed to the bugginess of the released rifle.

The Kalashnikov had been designed in 1947, (hence, AK-47), but it took more than a decade before a bug-free version (the AKM) was considered reliable enough to make standard-issue. (When this article refers to "AK-47s", most of the actual weapons involved were actually AKMs.)

The US, by contrast, had spent the decades since WWII resisting the assault rifle concept, so that when Vietnam rolled around their fantastically rich and well-funded military found its infantry outgunned by peasant militias wielding second-hand Soviet rifles. So the rifle went from initial acceptance, including these kinds of stupid last-minute design changes that are common in any project, to large-scale combat deployment within a year; normally, there would have been years of incremental usage to catch these bugs, but the rifle was so desperately needed that it was rushed to the front.

A book I've recommended in another thread, which gives a great introduction to the history and impact of the Kalashnikov in particular and assault rifles in general, is C.J. Chivers's "The Gun" (https://www.amazon.com/Gun-C-J-Chivers/dp/0743271734), or this shorter-form article he wrote in response to recent msas shootings (https://www.nytimes.com/interactive/2016/world/ak-47-mass-sh...)
Firefox recently added an accessibility inspector in the dev tools which may be of use.
Just to be sure I understand, doesn't the conjecture postulate that O(n log n) is the lower bound, so _anything_ beneath n log n would violate it?
Wow, that's a serious bug! Shame the car accident
One of my favored arguments for maintaining as much biodiversity as we possibly can.

Each species' death is millions of years of labwork trashed
I really liked the phone. This fits in the hand correctly and doesn't make me want to care extra.
What Do Formal Methods Guarantee?
Last I messed with it, it wasn't "self hosting" enough to run cargo + rustc, so all of the extra little utilities had to be built in when building the OS. This made it kind of annoying to hack on the userland.

That's seems to still be the case, but I admit I don't know too much about bootstrapping an OS like this. Is cargo still a ways out from being able to run within Redox? Is it a priority at all? I'd love to have a simple editor with a compiler running in a VM.
Boeing testing software changes to 737 MAX
I am so glad I read this before downgrading.

Sorry to hear!
Hey! Thanks @hunvreus for posting about One Page Love. I'm Rob Hope who started the website back in 2008. There are around 7000 references now and I'm adding around 1-2 new websites per day. If you want to know anything about Single Page sites hit me up in the Comments, Twitter (@robhope) or Email: rob@onepagelove.com Cheers! :)
Why? This is science reporting, not tabloid journalism.
We don’t need to know the marital status, gender preference,
dietary restrictions, previous relationships, etc.
Good writing about science is plenty. And “spouse” is a fine word if needed.
Well it is a true refurb from apple, which means it is indistinguishable from a new phone. It's also got a 1 year warranty.
From the post it seems like they were. They'd get from $300 to $5000 and the engineer in question seemed to be hitting the upper range most of the time.
Are modern versions more true to Stoner's original design, like the original rifling etc as indicated in the article? And do today's civilian AR15's generally have the manual bolt closure?
I completely disagree. When I see embedded Google Map I always try to zoom it by scrolling, but then get frustrated when it scrolls the page instead and I'm supposed to press control for zooming.
On Maps prime site it makes sense, embedded on other pages it makes less sense. But, the page other needs to add one line of config, or G needs to change defaults for embedded
> that's the case for lots of things, and most of those things wouldn't be entered with a keyboard

I agree with that, but this is an attribute of a text entry field. Like I said, we already have a different widget that accommodates the "I don't care what the value is, but I want to be able to easily fudge it upwards or downwards" use case.
What I was trying to communicate was that the Turing machine believed to represent the limits of what is physically possible. So then you have

turing machines >= brain (since a brain is physical)
and
brain >= turing machine (by simulation argument)

The conclusion is the brain and Turing machine can do the same thing (brain = turing machine).
It's interesting to me how no one knows or is talking about the kid who lost to the champ. He is perhaps equally good but lost in this game.
I feel like this is related to GDPR but in my opinion it doesn't follow the spirit of the law.
Now this is an awesome way to learn math. I just tried the "Graphs and Networks" course and it's so easy. I hope they release more courses soon.
How to stop losing designers time
Thats a good rule for dealing with messy real world systems like post codes and phone numbers but its still fine to use numbers in strictly defined non math systems. My database id column uses numbers and I have never had to do math on them other than ordering by id. The only potential issues I would look out for is things where leading zeros could be important and a database would probably drop.
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Not everything is possible. There are things which are provably impossible. It is, for example, impossible to find an algebraic solution for general polynomials of degree five or higher. The things we know to be impossible tend to be mathematical, or a "real world" system exactly modeled by math, simply because math tends to be the way we conclusively prove something.
Bigger sites are more likely to use microservices and multiple failovers so individual components can be upgraded without downtime. Smaller sites likely have a single point of failure that needs to go down to make changes (e.g. 1 single master database that needs to be write locked for a schema change).
Which is why it's my main browser on Android. It's really nice.
The ball on the magic mouse is particularly twitchy, and doesn't give back any sort of feedback. There are lots of other reasons why that particular mouse is an ergonomic nightmare, but I think this aspect is what caused the author to not notice the number change.
Yea that's the legacy "classic" swarm from pre-2016. Docker isn't moving away from Swarm, in fact they keep adding features. See https://www.bretfisher.com/the-future-of-docker-swarm/

Last month they released https://github.com/docker/stacks for Swarm.

Also, every industry survey I've seen in the last year on orchestrator uses shows increases in overall usage of K8s and Swarm, which I consider the better measure of a project's health. (CNCF, Digital Ocean, F5, Sysdig)
Essentially. I'm not endorsing it, but Uber's strategy is the classic monopoly strategy. It reminds of nothing more than Standard Oil giving it's competitors a "good sweating."
They wouldn't be. We limit ourselves to current or near current technology for these analysis or you can easily get into the realms of hypotheticals very easily. If you say that the laws of thermodynamics don't apply to aliens because they have more advanced physics then the sky becomes the limit. So you have to stick by your own rule book when you imagine, so it'd be more appropriate to say that there is unlikely to be Dyson swarms near us that were built by aliens with a similar understanding of physics. For all we know the popular way that they gather energy is harvesting photons from within the star itself, stick a giant straw into a star and just drink away the photons.
Iperius Backup 6.0.2 Crack and Serial Key 2019 (Latest Version)
Here you go: http://tomverbeure.github.io

This one is specifically about the RISC-V core: https://tomverbeure.github.io/risc-v/2018/11/19/A-Bug-Free-R...

> Can you recommend some of those open source tools that would aid in learning for people who don't already have hardware backgrounds?

I haven't played with them myself, but LiteX and FuseSoC are things to look into.

There is now also a whole fully open source tool suite to go from RTL (Verilog) all the way to a compiled bitstream for Lattice iCE40 and ECP5 FPGAs. That's not necessarily for beginners though.
> Having the scroll wheel move in y with no scroll to move in x just seems...weird.

Shift+scroll works as horizontal scroll in just about every place I've had reason to try it. (Outside of browsers, at least, though there I'm uncertain because everyone puts so much effort into eliminating any horizontal scroll)