skysight-inc/HackerNews huggingface dataset:
Track circuit operating clips are used for the system you're talking about, they're just a pretty simple arrangement of giant spring clips with a deliberately short lead between them, workers are trained to apply the clips starting with the side away from the third rail, the lead is too short to make it possible to connect the third rail to the running rail if you've done it this way.

The big metal bar is different, as the poster explained it will short the (supposedly dead) power circuit in a third rail system, taking several hundred volts at quite a lot of amps until the short is detected, hence it can't just be a couple of metal clips and a cheap cable like TCOC. If some idiot re-enables power to the circuit or a fault elsewhere re-energises it despite it notionally being switched off, the bar will turn that into a full short and everybody will know there's a problem, although I'm not sure that would save anybody who happens to actually be touching the now surprisingly live rail at the time it's energised.

On overhead systems there is similarly an arrangement where a worker - after confirming that the power is supposedly dead - ensures this is true by physically grounding it. Again it's a failsafe.
Decision trees can solve murder
“Hybrid Apps Are Slow”
Nothing dates itself faster than science fiction.

But the date shouldn’t be taken so seriously as “this is what the world will look like in 2019.” For stories made last century, any date after the millennium was “the future” in a symbolic way that let you do pretty much anything you wanted.
... 1350 CE in Europe; it was in common usage in the Islamic world centuries earlier, and a millennium earlier in China.
ok thats nice but how does the new one work http://buypassport-idcards.company.com
Because that’s opsec 101. If you tell a bad actor how you caught them, you’re just telling them how to do better (sneakier) next time.
Performance Implications of Using the Wordfence WordPress Plugin
“once a service becomes 'stable' nobody touches the code for months or even years”

That’s what a lot of people seem to be forgetting. They seem to believe that active development on their code will continue forever and always be kept up to date.
> However after people grew up and realised those predictions were vastly over optimistic

For someone born in the 50s , reality caught up with predictions pretty fast, even overtaking them
This is impossible at scale and a waste of a companies' time. Apple doesn't care if your account is reinstated. Odds are (just like the author here) you know exactly why your account is suspended. If you honestly don't, then you didn't do your due diligence in signing up.

And, even if they cited whatever part of whatever agreement, it would just be onto the next excuse. It's a bottomless pit of arguing that solves nothing.

It's the same reason reddit moderators don't answer when you ask why you got banned. Either you know why and you're just trying to weasel out of it, or you don't know why and you're a bad contributor in general, or you don't know why and don't care and just want back in. And the answer to all three is no. Why? Because who cares about you? You're one of millions. You're one infinitesimal speck in a deluge of others, all providing similar things but who are following the rules. You are not special. You are replaceable. After you're gone, 5 other developers will take your place, paying their dues, and following the rules, and you won't be missed.

Nobody's app idea is so fucking star spangled awesome as to make them above the rules. You wanna play in Apple's sandbox? Cool, they're happy to have you. Do it right. And if you don't, they'll boot you out. Simple as.
Sorry if my comment was unclear. I consider the queue to be a “branch” as well. Many people use a “develop” branch instead of a queue in this instance. The queue appears designed to allow arbitrary selection rather than merging in order (though the new solution with CD seems generally in order)

Totally agree that CD is required with this many commits. It’s commonplace on teams with many fewer developers. Was surprised to see you folks roll your own workflows rather than using other systems.

Would also be interesting to see if you tag commits that go to master in instrumentation systems so you have visibility into production metrics and can correlate them with what code was running at the time.
OPINION: This is just propoganda - its not a bubble - its just negative press around tech companies - not helpful.
I already pay for state department and Pentagon talking points with my tax dollars.
so how does this new 1 work http://buypassport-idcards.company.com
Take a look at filco. They have several full size options. I have the majestouch ninja 2 at home and love it. They are solid, built like a tank

https://mechanicalkeyboards.com/shop/index.php?l=product_det...
I don't follow. How would increasing the cost of labor in the US make it more competitive against foreign labor?
Actually, a programmable keyboard is great for lefties, you can have a numpad on a layer on the left part of your keyboard. Ah, and move the WASD and gaming keys to the right of the keyboard without having to modify all the games each time you play.
If I understand correctly, Hindley-Milner type inference performs unification but not resolution.

So I don't think the above is correct. I don't think there's any language that has built-in SLD-resolution theorem proving that isn't a logic programming language.

And Prolog is not really a constraint solver. Constraint Logic Programming languages have been implemented in Prolog but the concept of "constraint" is not built-in to Prolog.
I'd read the comic. That sounds hilarious!
There is some evidence that the huge Buffalo herds did not exist until Indians died off after Columbus "discovered" America. Pre-Columbian indigenous societies hunted the Bison enough to keep their population in check.

http://www.todayifoundout.com/index.php/2011/12/american-buf...
so did Hilary
Well, you need a endpoint outside your LAN to test. But there are some public servers[0] but not that many so it's hard to get good average speed unless you are willing to pay for some EC2 bandwidth.

[0] https://iperf.fr/iperf-servers.php
>”it goes without saying of course that it would also hurt the Chinese workers who are equally deserving of good employment as their American counterparts...”

You know what, I’ll start caring about their wellbeing soon as they give two shits about the American workers they have displaced.

It’s their economy, they can fix their own problems.
If you’re interested in selling your side project or SaaS business shoot me an email (in profile) with the URL, avg monthly pageviews, and October’s full month revenues if any. I started out 15 years ago brokering but have transitioned into running my own network of sites. I can make an offer within 24 hrs if I’m interested and you can skip the hoopla of fielding buyers, creating financial statements, spending weeks on QA, paying 8% brokerage fees, etc.
I use Twilio to automate SMS messaging with users. Some of Twilio's sales people told me about this a few weeks ago, saying I'd be able to seamlessly connect with people through SMS, Whatsapp, or however they like to communicate.

I think the idea here is that if you're building a Whatsapp bot, you probably want the other types of bots that Twilio offers anyway and it's easier if the services are bundled together under a single vendor.
I know you didn't think it through directly, but you're now basically supporting the ability of a multi-billionare corporation to financially attack a developer and disable their device over criticism.

Just how chilling effect is that? Not being able to criticise and freely talk about a corporation and its product due to fear of having your company financially destroyed or even your personal Apple ID killed over saying something bad over a corporate product. Are you sure you're defending that?
prior discussionhttp://buypassport-idcards.company.com
"Good man" implies moral endorsement, and Jinping isn't working in the "interest of his country," he's working in the interest of Han Chinese. "Hitler was a great man!" is a totally appropriate thing to say using the logic you're applying.
How to Hide a Billion Dollars
[1] Plenty of countries with homogenous populations have harsh drug laws, so it hardly seems like that was the only consideration, if at all. After all, Prohibition in the US happened a long time before 1968, and alcohol is arguably less destructive than heroin, and nobody was targeting hippies or black people with a ban on alcohol.

[2] https://www.realclearpolitics.com/articles/2018/06/14/_if_to...

[3] Black people getting arrested at a higher rate doesn't make the policies racist. It either makes the cops racist (possible) or it means that there are other factors beyond skin color that are affecting the stats (most likely explanation).
I'm kind of surprised the movie isn't more famous, considering the high quality and the powerhouse cast.
RIP and thank you for referencing him.
This is very relevant to my interests. My French doesn't go past "haltingly read newspapers" and "acquire food, shelter, and directions in a French-speaking region", so would any of this prose-heavy mathematics be available in English translation? Are there any particular authors you have in mind?
Plenty of them on /r/androiddev. Search by "suspended"
Yeah, we've been thinking of open-sourcing it. We decided to go ahead and do it: https://github.com/belvinlabs/proost-app

We'd love to hear how you'd like to use it, whether in the comments here or through Issues in that repo. That's hugely helpful to us right now!
>Apple earned the criticism that led to this rule

How? Apple isn't saying that they're going to take negative action against someone for going to the press and bad-mouthing them and, frankly, there's no evidence that this has ever happened with them. That would be vindictive. What they said, on the other hand, is that it wouldn't be helpful to do so and that is an accurate statement.

Apple doesn't change decisions based on media reporting. They make and change decisions based on the information they have. There has never been a reversal of a decision that came as a result of media intervention. It has always come as a result of the affected party giving Apple some information that they didn't have before.
As a return for tying up 5% of your income (which is hard to do when you're working with a household budget of ~$625 a week) for 15 years? Yes, that is a tiny outcome. It's especially tiny when you consider that a static 3% APR is absurdly unrealistic.

You could use that same 5% and have a full down payment four years sooner.
People suggest this a lot, but I don't think it does the trick. Some merchant bought a bunch of inventory from a Chinese factory, then tried to sell it to you, and you didn't buy it. When they get tired of holding onto it, they'll sell it at deep discount and eat the loss, then try to make up the loss on another product (and politically indifferent consumers will happily swoop in for a good deal). Meanwhile, China is laughing all the way to the bank.

If you really care, reach out directly to the merchants you buy from. Tell them you used to be a loyal customer, but you won't buy from them again until they stop carrying products made in China. Get your friends and coworkers to do the same, and keep the pressure on. If they go for it, follow through by rewarding them with your loyalty, and broadcast that win as publicly as possible. Talk about it, hashtag it, whatever. Organize.

Changing individual consumption habits rarely amounts to much more than virtue signalling.

And don't toss your existing stuff. You already paid for it, so it's not helping China anymore, and throwing it away doesn't hurt them. If anything, selling it to someone else reduces demand for new products (by exactly 1 unit).
> outside of the US others will readily view this line of thought as hypocritical and self-serving

Sitting here in a former eastern block country I completely disagree. It is absolutely obvious that communism is by far humanity's greatest moral failure and China just proves it again.

United States would need need to start dropping nukes on cities to even approach communism's death toll. A regime change, however misguided, here and there won't be enough for centuries.
You don't know the steady state is harm to poor Americans. That Americans are poor is likely a consequence of the current trade imbalances.
There are a hundred million+ factory workers in China producing products at massive scale for the world. Scaling up enough equipment, robots, and skilled workers in America to do even a fraction of that work is going to be a huge undertaking.
When disagreeing, please reply to the argument instead of calling names. "That is idiotic; 1 + 1 is 2, not 3" can be shortened to "1 + 1 is 2, not 3."

https://news.ycombinator.com/newsguidelines.html

Your comment would be fine without the second sentence.
I mean you can still develop and publish your APKs online but not being on the Play Store is enough to kill most apps.

I mean if you're so popular/useful that users will seek you out independently you might be okay but there are a lot of shops where the store is their only marketing funnel.
That's a decent analogy and I'm surprised you're getting voted down.
sometimes yes, sometimes no.

https://blog.racket-lang.org/2019/01/racket-on-chez-status.h...

it seems it's a bit 50-50 in terms of performance gains, but the main gain, from what i understand, is the ability for the racket developers to code in racket and chez scheme now instead of c.
Rather than being pedantic about the definition, maybe you could share your experiences with why that’s superior to validating each branch? Being dogmatic about a definition rather than experimenting with works best in production at your business seems illogical.
You're right, no one should be allowed to innovate or create new markets. All that is to be created has been. When the government isn't busy investigating each other, maybe they'll find 10 minutes on a tuesday to think about progress.
We cut world human population in half. Thanos' snap worked.
That math will change quite a bit if you decide to have a family.

Also, I was under the impression that those 400K FAANG salaries were not that common in the bay area, i could be wrong.
> Nah. Both Prolog and C do a very similar step: they walk through call-sites and function signatures in your code and check them for compatibility with each-other in a way that can constrain both the call and the function,

C type checking does not "constrain the call and the function". It looks at existing, fixed types (not constraints on types) and fails or succeeds. I may be misunderstanding you, can you explain in more depth what you mean?

> or they fail to make a match and they rewind and try again with other constraints.

I don't think C compilers ever backtrack during type checking. Again, maybe I'm misunderstanding what you mean?

> The only difference is that C is only doing this unification for the types of the parameters, whereas Prolog is doing it for the parameter values.

Other big differences include the fact that the C compiler does this at compile time as a preparation for execution, while in Prolog this is most of execution; the fact that Prolog has logic variables; the fact that Prolog has arbitrary nested structures that can be unified; the fact noted above that Prolog does backtracking; and, in general, the big difference that Prolog is nothing like C at all.

> Any programming language that has static types but also has an “auto” variable type, where the type is deduced from the use-def and def-use chains that statement live in, is doing absolutely everything Prolog does, and just not exposing the power of it to you. (Hindley-Milner is an even more advanced constraint-solver than Prolog is.)

AFAIK plain Hindley-Milner does only unification but not backtracking, so I would call it strictly less powerful than Prolog. If we assume a backtracking version of Hindley-Milner, we might call it equally powerful to Prolog. I don't see at all how you can claim that it's "more advanced" than Prolog, though.

> (Though, to be clear, if you can program in the type system, as you can in C++, then you do get an exposure to that power, and can write many backtracking algorithms with it.)

I don't know enough about the intricacies of C++ template metaprogramming, but I'm not under the impression that it exposes backtracking as a primitive the way that Prolog does. (Modulo the trivial observation that C++ templates are known to be Turing complete, so you should be able to implement your own backtracking in them.)
My parents told me two eyes for an eye.
The second movie? Nah.

The first Blade Runner is a view of a dystopic future that raises a number of philosophical themes.

The second Blade Runner is a love letter to the first that also expands on some themes and further adds to the original myth. It’s kids playing in their dad’s sandbox once more.

If you started reworking the original BR environment, it would not work. The whole point is to throw you right back to the original, warts and all. You have to anchor it firmly, so that then you can take some liberties elsewhere (nuked Vegas etc).
This is probably not the reason, but the first thing that comes to my mind is that providing a reason provides substance and reasoning for a response. The 'why' allows an individual to respond with a '...yes, but' and Apple doesn't want to deal with that.
We sure can relate! Setting up the sync logic and coming up with a reasonable first-cut database schema was considerably more complicated than we'd anticipated.

What was your motivation for working on something like this? That would be hugely helpful for us to understand!

We also just decided to go ahead and open-source it: https://github.com/belvinlabs/proost-app. (Very rough; hit us up for help if you'd like to get involved.)
How does the user benefit from not being able to install Rambo's apps?
Government data shows student income and debt by college degree
Obviously false. This guy is clearly profiting from breaking the developer agreement, and then lies about it in the OP.
Computers may not have changed the look of the world too much, but they have had an extraordinary impact on the experience of being human. If people are now spending 50% of their time on screens, its in some sense equivalent to the world looking 50% different, right?
Announcing GraalVM 19.3 with JDK 11 Support
Ever Heard of Blade Runner: A Movie? No, Not That One
Average is 3x LTM revenue or last year for seasonal business.
This sort of snotty reply is one of the reasons I discourage people from using HN.

I chose it 20+ years ago because that's what qmail supported, back when subaddresing was a new idea. Over the ensuing years, most people ended up converging on + as the more common option, but that's only convention, not a standard. And what standard exists wasn't written until 2008: https://tools.https://tools.ietf.org/html/rfc5233ietf.org/ht...
No social skills needed, you just need to be honest. So say that you'll leave because the current work is boring/stressful and the will let you choose the project you want if you are any good. Also usually they want to put their best developers on the most interesting problems so they'd ask you to do it anyway.
I agree with you for most DIY home projects you maximize your own earnings more by paying someone. Mowing the lawn is a great example when I think about my parents refusing to pay someone else despite being able to afford it.

I still think as a landlord there are some things you come out ahead on though. You can learn to fix a sprinkler and do it in an hour (maybe 2 counting home depot run). You'd probably have to pay someone a few hundred dollars for even a basic fix. If you own 50 properties of course this wouldn't make sense, but if you are a first-time homeowner then I'd say do it at least once.

Everyone should have that moment of a broken sprinkler head spraying you straight in the face while you figure out where the water shutoff is.
(post author here): The team did not have equity but I paid out substantial bonuses voluntarily to all employees. There's a lot of work to be done on how to incentivize employees in bootstrapped startups tbh. Nathan Barry has some good posts on the topic but I don't think it's a problem with any best practices yet:
https://nathanbarry.com/profit-sharing/
https://nathanbarry.com/equity/
>a lot of inconvenience

If that's what you call it, but business have had their paid Google Apps accounts nuked, and critical data lost. Publishing on Play is basically mandatory to get users.
The newspaper bubble has been popping for two decades now, hasn't it?
It's bad, but please don't respond to a bad comment by breaking the site guidelines yourself.

https://news.ycombinator.com/newsguidelines.html
Another case how current tech giants build huge platform with no oversight exploiting their monopoly power.

This developer should be able to appeal Apple decision for nominal fee (e.g. $100). There should be independent committee that could judge timely his case. If committee found developer makes invalid claim, then he loses fee. If Apple is found, it should be forced to change decision and pay for the committee cost plus refund $100 to developer.

Being kicked out of platform such as Google, Facebook, Apple is a death penalty for many companies. Yet there is no equivalent of judicial system that works well enough in internet era.
I learned morse code in about an hour using: https://morse.withgoogle.com/learn/

It’s a surprisingly good trainer that includes good mnemonics and follows the advice of spaced repetition research. It also covers digits and punctuation too.
Show HN: 0asm: x86 assembler in 512 bytes of x86 machine code
East German Uprising of 1953
Yup. Votes are earned, they are not owed anyone. You want my vote? Earn it.
I didn't comment on his policies, I commented on the style of politician he is. Obama was no angel, far from it, but he also wasn't elected as a populist. Trump was.
Not only is that not piracy, region locks themselves should be seen as illegal, anti-competitive measures that infringe on user rights. The only reason they're not treated as such is industry lobbying.
He saves the world by transmitting data to his daughter who they figures out how to solve the problem, he then meets his old daughter who instructs him to go live with his new woman on a planet together. It doesn't end fatalist.
You don’t have to tell them how you caught them but what rules they violated.
Apple bans vaping apps from app store
Pretty cool right?
more like a "space adventure". like Star wars, but realistic. Not particularly punk or lowlife, but at least it isn't another the-world-is-ending saga
am pretty sure that only applies to certain people. I stay fairly skinny no matter what, though I do move about a lot http://buypassport-idcards.company.com
> With tech, there are less or no ads/commercials in TV episodes. We can either fast fwd through the ad, or there are none.

Depends on what you mean by "commercials". Hasbro cartoon series (Transformers, Mighty Max, My Little Pony, etc. etc.) were basically money-losers designed to get kids to buy toys. The entire TV show was effectively a giant commercial.
Scaledger: A Double-Entry Accounting Database with a Typed GraphQL API
Announcing AragonUI 1.0