skysight-inc/HackerNews huggingface dataset:
So what is the solution? Have one small car when you are driving alone,and one huge for driving with family? That works somewhat - but I am fairly certain that the ecological impact of producing two cars is larger than that of driving one oversized one.
He looks pretty grumpy, but Peter Beck is actually a very smart, warm and engaging guy in person.
The composite (or prime) filter regexp is brilliant.

$^(11+)(\1)+$

see OPs linked article http://zmievski.org/2010/08/the-prime-that-wasnt for details
A Nema 17 stepper plus an Arduino and a L298n stepper controller should work out significantly lower than $200.
Show HN: Cool Old Term
Thanks for mentioning my project, Reflux.

I initially thought that the suggested implementation by Facebook was a bit weird because it requires a lot of boiler plate code.

For the longest time I disliked using magic strings for type checking since it breaks the concept of polymorphism. In Javascript it is even more weird considering it is a dynamic language. So I fixed that by moving the type specifics (which in Flux's case is mostly about handling events) into the actions and stores themselves.

Thanks to a contributor we also provide a mixin for React components that adds automatic unsubscription on componentWillUnmount and provides a listenTo method in the components to subscribe to actions and stores.

It works both server-side (available at npm) and client-side (available as bower package or can be built in browserify from npm package).
cpanel has a loooooong history of security issues. It's probably the single most vulnerable part of any hosting company's infrastructure. ISPConfig is probably better, but it too has had some issues (http://www.exploit-db.com/exploits/29322/).

There's a fairly low bar for system administration for "just getting it to work", but a really long upward curve from there to "properly managed". For example, backups (which typically require some special handling for Postgres and MySQL). Also, if you store any user data at all, you're kind of obligated to make sure it's safe. You kinda want to have automated DB backups and data safety even if you're using Heroku, but doing your own sysadmin might add to the effort required to get it all working right.

You're right for the most part that you're not likely to see much in the way of targeted attacks, but be careful not to discount the number of automated attack systems that are out there now. Within a minute or two of bringing a server online, I begin to see hits for spam, ssh, and root password attempts from around the world. It's sort of amazing really. None of these are likely to go very far on a default install, but if for example you decide to set up an MTA so that your application can send you (or your users) email notifications, it's easy to goof up a sendmail config and end up with an accidental open relay.

Maybe another way to put this is, Heroku charges that much because they provide that much value to people who don't want to deal with this stuff. I prefer to deal with this stuff myself, but a lot of other people don't, and I can't say they're wrong.
One shouldn't discount the free concurrency offered by the unix pipelining paradigm. There are several data-mining usecases where you'd wind up writing much more performant scripts exchanging I/O between processes, with less brainpower than it takes to write a bunch of for-loops in python.
If minimum wages, why not maximum wages?
Second that, if i'm not mistaking, there is a guy running his 4000 $ monthly biz running on the free tier... Can't remember which biz or where i saw it though.

It was just API calls if i'm not mistaking and he wrote a post where he slimmed his app so it could fit in the free tier again.

Anyone has an idea?
From the article summary:

tamoxifen caused a dramatic regression of tumors in animals with either high nighttime levels of melatonin during complete darkness or those receiving melatonin supplementation during dim light at night exposure.
All that swift does is changes the tool you're using - the pastures remain the same colour.
What's IAP (IAP-addiction-reliefs)? Sorry, I'm a bit slow today... "In App Payment"?
Take off and land anywhere: Russia unveils hybrid amphibious drone vehicle
I can see the headline now: "Scientists Say Darkness Cures Cancer"...

EDIT: Apparently, the fact that I'm mocking the kind of "science reporting" that would turn this result into that headline wasn't screamingly obvious. I'm surprised; it's a phenomenon I've seen discussed often enough here.
4g or 4mg? Natural amount of secreted melatonin is much less (< 1mg), you're overdosing with 4mg. I use 0.3mg Herbatonin, which is bioidentical natural form of melatonin from a plant. 10-20mg is therapeutic dose.
I don't have a retina display, but the graphics are blurry here as well.
Can a University fund another university, I doubt YC funding another YC. However, can PG fund/enable another YC? Maybe :).
Have you done a risk analysis?

Some things for you to ask yourself: Do you work for a government agency? Is it possible for secret documents to be on your machine? Do you work for a high profile company? Is it possible for trade secrets to be on the machine?

What's the worst that could happen if the data is compromised? Will you die? Will you go to jail? Will your company lose millions of dollars?

> What are some good (trustworthy) tools I can scan my computer with.

There are none. Once you think your machine has been compromised the only safe course of action is to wipe and re-install, and then very carefully restore data from back-up.

Check for hardware tampering too - hardware keyboard grabbers are cheap and easy to fit.

Don't forget that burglars have different styles - they don't just rob everything. Some burglars will just steal jewellery and leave everything else; others will grab everything technical and leave everything else. And the burglars might have been disturbed in the process of robbing the house.
I learned that 30 years ago. It seems to be one of those things that every generation needs to learn the hard way.

A reason why an effective team needs a few older guys who've been around the block a few times :-)
How to work from a mobile office while having 25 employees
I wanted to know if this was plausible, so I located the Yawata Steel Works (the source of the smoke screen) and the Kokura Arsenal (the aiming point for the bomb) on a map. They were about 4.4km apart.

http://i.imgur.com/nJaJtH7.png (the site of the Steel Works is on the left)

Interesting, but I still don't know if it's true.

edit: Wikipedia's page on Smokescreens says "One 50 gallon drum of fog oil can obscure 60 miles (97 km) of land in 15 minutes", so I suppose it was easily possible for them to have hidden the target if the wind direction was right

Google Maps link: https://www.google.com/maps/place/%E4%B8%AD%E5%A4%96%E7%82%8...
I wish you weren't all the way down here, because you're absolutely right. The HN people that know about monetization must be sleeping right now -- probably blissful, happy sleep, full of dreams of what to do with their money.
Are they pushing stuff to geo-synch orbit? Thats where the big business seems to lie. I thought the article was really vague and surprised it did not talk about Space X and other competitors.
Ask HN: Best JavaScript Single Page Apps
What are the best SPAs (Single Page Apps) you've encountered so far?

I'm looking for good examples to demonstrate business the potentially better experience with an SPA over classic server side produced html pages.

Complex examples would be preferred over simple ones.
Huh? If you can apply an FFT and apply a filter in the frequency domain, what's preventing you from applying the convolution in the spatial domain?
maybe I have just been lucky but I am running a site on a dedicated Linux server for 3 years without any significant issues. There have been zero security issues. The only downtimes were caused by me. It requires maybe 2 hours of maintenance per month. It is also running on bleeding edge packages. Of course I invested some days into the initial setup but that is fun if it's your hobby.
True. Unfortunately you then get a new VP who still believes in KPIs (or needs to demonstrate KPIs to his boss because that's the only thing upper management "gets") and then you're back to square one :(
That sounds right. Especially given the rumor that Apple is cooking up their own mobile payment service.

I guess when you try to do something like this, the lawyers and other higher ups need to figure a lot of things out first. And this bitcoin business looks like it falls somewhere either within this scope or at least very very close to it.

I think they needed this time to get a comprehensive look what they were planning re: mobile payments and how bitcoin dealing might be affected by this.
1. It will only lower the barrier. While not being innovative in any way Swift is a modern language and does simplify development.

2. Based on your concerns, using Swift is a really bad idea, since you will be tied to single platform. I would opt for C# + Xamarin instead.
Instead of going WOT, why not just get a specific SHA hash, instead of a specific version?
Yeah, this is what I'm wondering about as well. What does the actual implementation of this look like? Is it just one display being fed 2 low-resolution image streams? And is there any effort required to synthesize the cascaded image?
In-App-Purches.
A Qualitative Assessment of the 2012 Botnet Internet Census [pdf]
People have always been able to do sinister and deadly things. The reason that they do not happen more often is largely not because of people stopping them, but is rather because not many people are really that nuts.

The ability of pranksters to switch flags on a bridge does not make your world more risky. A heavy handed state triggering paranoid reactions from the mentally ill may well do.
Curious what the sticker price is for the MNML model.
Wow, it is possible to implement an entry-level shooter using a flavour of OpenGL and a high-level scripting language? Who would've thought.
but it seems reasonable to teach him about lowering his costs so he need to get less money, right?
I would think that Campbell’s law is a slightly better fit:

https://en.wikipedia.org/wiki/Campbell%27s_law
A lot of common expressions don't hold up to scrutiny when examined in their most "literal" explanation.

This particular one has been used to associate with social civil rights. The implication is that 50 years from now gay and trans acceptance will be such a non-issue, that members of future generations will ask us why it took so long for us to pass such obvious legislation protecting human rights. Exactly the same way that we today look back at segregation and the civil rights movement and shake our heads.

Whatever people's personal or religious beliefs are on gay marriage, it is GOING to be 100% legal in the entire western world whether they like it or not. Desegregation wasn't very popular at the time it was put in either.
GPLv2 xlocate, by Alexandre Oberlin, is a GUI front-end to locate/slocate/mlocate. It supports indexing of offline media, e.g. offsite DVD backups.

http://qt-apps.org/content/show.php/xlocate?content=99529

manual: http://migo.info/xlocate/readme_en.html
Nobody has taught anything about lowering costs so far; all of the suggestions have been for trading more time for money. Since he's already got a full time job, I doubt this is the advice he was looking for.
This is excellent. While I'm still unsure about the seL4 model being the best for a secure system (a topic for another day), it's wonderful to see this development.

I hope "someone" will port this to RISC-V (32- or 64-bit).

Is http://ssrg.nicta.com.au/software/TS/seL4 out of date or is the license really not open source (OPEN KERNEL LABS and National ICT Australia Limited (Licensors) NON-COMMERCIAL LICENSE AGREEMENT)?
Yeap, tying one's job title / website to a JS-framework of the moment - what a terrific idea.
From #NoEstimates to #YesPrototypes
I would really like to see some data on the memory savings using this technique. How significant are they?
> Top lists reward apps that get people to download them, regardless of quality or long-term use, so that’s what most developers optimize for.

Actually, that's where the in-app purchases come in. As every free2play game developer will tell you, the key to good monetization is updating your app and engage the community. Produce new content, throw seasonal promotions and sales, fix bugs, keep the game alive.

That's exactly because you care about the overall LTV of the user, not the download event — and, as free2play developer, my task is not to lure the user to pay $1 to download it, but to convince the user to pay while he's already in it. There are developers that buy installs for $10 a piece from a certain sources, and they make a great profit out of it — just because once the user gets there, he'll pay more. Not because anyone will force him to; it's impossible to force the user to do anything, we don't a gun to his head — but because he wants to.

May be the app developers, too, will finally go to the same route?
It's a shame they are not focusing on the most lagging bit - CLR/Mono support.
Something about L4 here: http://en.wikipedia.org/wiki/L4_microkernel_family

I hadn't heard about it before
What I'm really wondering about is how much financial jargon is intended or abused to obfuscate what is going on to other people in finance. I suspect that there is a relatively bigger risk of people having that intent in the financial industry than elsewhere, since scamming people without being detected is a lot easier (and probably more tempting) when money itself is the product.
[yourname.per.ws] Own your Personal Wordpress website For Free
Complete guide to CSS selectors Pt.1
Because smart people will always find workaround and this will only increase administrative.
Savannah Workers Comp Attorney
Show HN: IBM's take at enterprise-class JS/AMD-based Web Components
Static Web Apps
Razor is for private cloud, the biggest problems it solves are bare-metal provisioning as well as OS-specific mass-install tools. One of use-case for Razor: pop-in a new server into the rack, get provision ESXi with Razor and then provision a number of CentOS and Debian VMs without having to care how different is Kickstart from Preseed. It's a great too, but it's mostly for private cloud and Teraform is for public cloud and is therefore at a higher level.
It's pretty clear to me.

First, what the guy did was wrong, and he appears pretty stupid, pretending to be stupid, or both.

Google is generally known for their abysmal communication and "customer service", but in this case they were in fact pretty clear about the problem right when the first app got suspended.

He can whine all he want but Google's decision to ban his Android developer account was not too unreasonable.

However even with that in mind I do believe that they went completely overboard with the decisions to also ban-for-life his Google Wallet and Google Music accounts. Those are completely unrelated to this matter[0], and escalated this thing out of proportion.

It is kind of frightening they will just take those things as "collateral" for violating a bunch of rules on a completely different service that just also happens to be part of the Google ecosystem. It starts to become and look like a state that way (hello, cyberpunk future), but with a state you should also have clear rules and ways of appeal. Google definitely doesn't have a meaningful version the the latter.

People depend on all sorts of services that Google provides, and the ability to take all or any of them away (there are no laws) because you violated an unrelated rule, is an amount of power that should come with mechanisms that keep it in check.

Indeed what if they instead had taken his GMail account?

[0] unless there is more that the author is not telling us, which is not at all unlikely.
Onwards and Upwards
It is out of date. The most of kernel is under GPLv2.
Having your job prospects threatened because you're unable to repay a hospital bill is the most broken, fucked up thing I've ever heard.

EDIT: Well, not the MOST broken and fucked up... but pretty fucking broken and pretty fucking fucked up.
Deconstructing React Flux architecture with Reflux
This is result of QE. Cheep money doesn't solve problems.
The main part of an LCD is transparent. It looks like they've stacked one in front of the other, with a half-pixel offset, and arranged the polarizers in such a way that they perform a multiply operation.

So, two panels can produce 4X the resolution, using only static images. But I'm guessing they'd have to sacrifice some bits in the luminosity domain to make it work.
urgh... pixels ? The color palette is kindda violent too.
I think the OP was trying to point out that it officially got open-sourced today.

From http://sel4.systems/ :

"General Dynamics C4 Systems and NICTA are pleased to announce the open sourcing of seL4, the world's first operating-system kernel with an end-to-end proof of implementation correctness and security enforcement. It is still the world's most highly-assured OS.

What's being released?

It includes all of the kernel's source code, all the proofs, plus other code and proofs useful for building highly trustworthy systems. All is under standard open-source licensing terms — either GPL version 2, or the 2-clause BSD licence.

When is it happening?

The release happened at noon of Tuesday, 29 July 2014 AEST (UTC+10), in celebration of International Proof Day (the fifth aniversary of the completion of seL4's functional correctness proof)."

EDIT: The original link should probably be updated to http://sel4.systems/ as it has the link to the Github page prominently displayed there.
I've only read Fooled by Randomness and The Black Swan, but those at least aren't anti-science at all. The argument is that in physics as our ability to measure the world goes up, so does our ability to accurately predict it to an extremely high degree of precision, and we've relied on this fact to build an expectation that the same is true of all sciences, and this is simply wrong, especially because it looks like any fault in prediction is just a flaw in measurements. As soon as we humans making our imperfect decisions enter the equation, a treacherous but inherent element of pure unpredictability appears and unless we temper our faith in our ability to predict the world through models, we stay prone to being surprised by black swans.
If unclaimed by OP, could I have them, or one of them? I'm just looking into starting an AWS project, which will similarly cost me money in return for as yet unknown rewards. The idea is to create ad-hoc render farms from multiple EC2 instances, so development costs could end up being non-trivial.
I'm seriously wondering when/how this thing is going to blow. Debt is such a central part of everything American, and it's completely not sustainable. What's going to happen? Another credit crisis? Revolution? Mass evictions? Nothing?
Sure, you could obtain a hash out-of-band and pin to that. Not much more convenient given you have to do it for all transitive dependencies and Maven-plugin dependencies as well.
The FAQ[1] has a hell of a lot of info about what seL4 does and does not do.

[1] http://sel4.systems/FAQ
What's the plan for people who live in the north and have a degree of polar day? As in it's not ever getting dark.
There doesn't seem to be much demand or interest for that overall. They recently discontinued the .NET support. Almost everyone was using it on the JVM. Any specific reason why you'd need CLR instead of the JVM?
HackingTeam 2.0: The Story Goes Mobile – Securelist
Is that not 4chan?
Thanks for that link, I know a lot of people who do physics demonstrations. They probably will love this! (And have seen it already, but that's beside the point)
What is the real use case for this? Gaming and VR?

we have no problem making 4K Screens and Hardware isn't bound by it either.
Why can't we embed the hash of the dependencies we need
in our projects directly?

There's a lot of stuff in Maven, like the versions plugin and the release plugin, to update dependencies to the latest version. This stuff is useful for continuous integration and automated deployment, especially when your project is split into lots of modules to allow code reuse.

With code signing, you can (or hypothetically could, I don't know if anyone does this) check the latest version is signed by the same key as the previous version - whereas just pinning the hash wouldn't allow that.

I agree pinning the hash is useful if the signing key is captured.
"The perks seem attractive (free food and occasional visits by Hillary Clinton or Bono)." - does anyone really want to meet them?

I agree that working for a start-up is good, as long as you are a member of the founding team, like the author.
why call it "static", when it's obviously dynamic?
I had only heard about the studies but never took time to read the blog posts. I think I've spent the better part of the past two hours on there. Great stuff and always interesting to see people doing experiments like this (and making them open and 'fun'). A blog post every few months with as much in-depth research is something to look forward to.
They're targeting 500km LEO. Here are some specs from their homepage[0]:

Paylod: 110kg
Orbit: 500km, Sun synchronous
Stages: 3
1st stage: 9x "Rutherford"[1] RP/LOX engine
2nd stage: 1x "Rutherford" RP/LOX engine
3rd stage: Solid engine)
Cost: $4.9M

[0] http://www.rocketlabusa.com/

[1] http://www.rocketlabusa.com/about-us/propulsion/rutherford/
Practice any language without effort when committing to git
The Atlantropa movement, through its several decades, was characterised by four constants:

- ...

- Pan-European sentiment, seeing the project as a way to unite a war-torn Europe;

- White-centric superiority (and even racist) attitudes to Africa

- ...

It interests me how such a positive sentiment (Pan-Europanism) can be combined with a very negative sentiment (white supremacism) without any trouble.

I'm not sure we can play the "they were different times" card so easily. Currently, the EU has open borders, so the Pan-Europanism part worked out quite well, actually. As a consequence, the outer borders of the EU have become rock hard, because once you made it to Spain or Italy, you made it to most of Europe. We treat Africans who try to make it across like animals - not out of some white supremacist sense, admittedly, but the effect is the same.
The paper they published based on their findings, "Improving IPC by kernel design"[0], is pretty #cool and worth reading.

[0] http://www.scs.stanford.edu/nyu/04fa/sched/readings/l3.pdf
Thanks for the comment. Do you know or recommend anyone in particular?
Nikunj, thanks for sharing Unioncy. Would be great to hear what you think about it.
Maybe you could assist them?