skysight-inc/HackerNews huggingface dataset:
In addition to the per-student cost-to-educate not being constant, but charters only admitting the cheap students (as mentioned in sibling posts), charters also tend to have much lower salary costs, because in most states charter school teachers aren't part of the teachers' union. They have lower pay, worse benefits, and trend quite young. The charters, for the most part, are only making use of the cheapest, least experienced teachers in order to educate the students who are most likely to do well no matter what school they attend. After those teachers are chewed up and spat out, they're replaced by other fungible TFA folks who are just as inexperienced and just as willing to work unpaid overtime until they burn out.

As a predatory move to extract value from a very large market, it's commendable capitalism. As a general trend that undercuts the quality of public education nationwide, well, it's very distressing.
lol git clone http://urlto.google.codebase.git ...

I wonder how much time it takes to clone the repo, provided they use git.
Back in my day, I'd see friends with their glocks at school. Teachers didn't even bat an eye.
No it's not. Think about it.
Please correct me if I am wrong, but it look like it is not distributed yet.
From the roadmap : https://github.com/pingcap/tidb/blob/master/ROADMAP.md
Distributed KV and distributed Transactions have no checkmark!
So in it's current state, how does that differ from using sqlite?
Chinese compiling 'Facebook' of U.S. government employees
This work seems to be pretty interesting. It turns to me that I/O isolation, durability and consensus are the top 3 concerns that leading to choose BookKeeper as the storage backend. It also mentions about Kafka, raft/paxos. It would be nice that those engineers could dump more details (architecture, performance considerations) comparing to Kafka, and maybe raft/paxos too.
Massive passwords can bypass Android lock screen
I recommend using Three.js which is the library that our game is using. Starting with WebGL from scratch might be too difficult if you have no experience.

Unity is not quite ready for the web yet, they have a WebGL exporter but it doesn't support mobile.
Thermodynamical cost of some interpretations of quantum theory
I will say that I saw and experienced many things that changed my definition of 'large' at Google, but the most amazing was the source code control / code review / build system that kept it all together.

The bad news was that it allowed people to say "I've just changed the API to <x> to support the <y> initiative, code released after this commit will need to be updated." and have that effect hundreds of projects, but at the same time, the project teams could do the adaptation very quickly and adapt. With the orb on their desk telling them at that their integration and unit tests were passing.

I thought to myself, if there is ever a distributed world wide operating system / environment, it is going to look something like that.
Direct link to talk (The Motivation for a Monolithic Codebase ):

https://www.youtube.com/watch?v=W71BTkUbdqE
Another huge security problem
The police made repeated mention of his surname. You might want to ignore race but thischild's religion was clearly a factor for the investigating police.
I think they would expand it to be a network of work colleagues very quickly though. It will start like Yammer and slowly roll into inter-company/inter-industry networking tool. If I were LinkedIn, Id be worried.
Zuck also invited him to Facebook: https://www.facebook.com/zuck/posts/10102373304096361
Hershey’s Chocolate 3D Printer Whips Up Any Sweet Design You Want
Thanks for mentionning this, we'll take a look at this issue. About the textures, I agree some of them need a rework.
My skin color is I guess white but my heritage is mixed between old European (possibly Scotland and/or Ireland) and definitely Native American Indian. If I were an actor and got a big role; are you saying a white person got the part because my skin is what people usually call white? I'm fairly certain a lot of famous actors who it sounds like you would categorize as white are probably more like me, mixed.
iOS 9 Now Available to Download
Fred can create new wealth simply by dancing to Ginger's tune for an agreed period of time. There is no limit on the amount of "wealth" that can be created; as long as there are economic actors in the system, their action is wealth generating if it is done in exchange for money.
I think people are downvoting you because of your implied suggestion that the issue of racism in the US should be approached from the perspective of white people, which is pretty messed up.
Uber Hits Roadblock in India After Being Denied Permission to Operate in Delhi
Adept succumbs, sells to OMRON for $200M
Interviews!
Tripling your rate of return from 1% to 3% is only an extra $3600 a year. I suspect the same amount of effort applied to your core business would yield a better return on your time and mental energy.
Twitter is not 1-to-1 messaging, generally.
> we don't need University of Phoenix brought to elementary schools.

I realize that from your perspective, the world if full of imbeciles ... but just for a second, consider that {insert for-profit college name} is providing a service that people want and that's why people are choosing it.

Those people don't care how the money they are paying is divvied up afterward. Whether it goes into the pocket of some administrator or a sports program at a non-profit institution, or into the pocket of some CEO or shareholder at a for-profit one.

They are getting something they want and that's all they care about.

If we had an education system that as a whole, gave people what they wanted, we would all be better off.
I actually did read some of the manual (which I appreciate the detail it has) but that didn't help my confusion because it seems to mostly overlap with Mutt, which would make sense if it was a Mutt competitor but it uses Mutt. As a small example, why is there a `jaro compose` command when you would normally just press `m` in Mutt?

I don't follow how you expect people to use Jaro. It seems like you use email as something that you pop in and take a look at every now and then, is that correct? It makes sense with all of the commands you support; why would I use `jaro fetch` if I already have Mutt open and it automatically fetches new mails. So am I wrong in saying that leaving Mutt open all of the time is not how you do email?
I have an extremely unpopular and possibly incorrect notion that you can learn a substantial amount from being treated unfairly.
There is a large Muslim population in the Dallas area. The problem is a combination of (self or social) segregation and poor integration of the immigrant communities.
Not knowing members of your society just because you have preconceived notions about them is pathetic, but painfully real.
We should post an article relatively soon including the level generator for people to play with.
The MAKWA Password Hashing Function [pdf]
Umm, it means white. As in "mountain covered in snow" is white.
That's why Google is so unsuccessful at scaling technical solutions, unlike you they're not forward-thinking.
My point is if it's a bomb, you shouldn't touch it, at all. If you don't think it's a bomb, you're being annoying. Which is it?

Moreover, why even target a plane? A bomb in a security checkpoint is just as, if not more, scary and deadly.
This helps a lot, thanks. It looks like maybe Jaro makes it easier to configure that Mutt (which is a very complex configuration), is that true?
The father is an anti-Islamist. Anti. It means opposite. The guy is sufficiently anti-Islamist to go run for president of Sudan. That takes some dedication.

Muslim != Islamist, just as Christian != Westboro Baptist.
Or Connecticut. I grew up in Acworth and I remember one of the roads in Charlestown on my way down to school was called "Connecticut Heights". Always made me chuckle.
That's my general take as well, but thought I'd float the question. There's also the consideration of $250k FDIC limits, though for the next 2-3 years that's as simple as maintaining a couple of different accounts.
The Book No One Read
Thanks.

And to the downvoters too.
If you are earning less than a percent, you are probably paying for liquidity.

Inflation is currently bouncing between around 1.6% and 2% (but mostly towards the 1.6%). A 3 year CD at a decent bank is currently paying around 1.6%; a 5 year CD is paying around 2%. So if you're willing to commit to a 5 year deposit, you will probably beat inflation and realize a small, real return. Even an interesting-bearing checking account (with a sufficient balance...) pays close to 1.6%.

Granted, it's not the glorious 5%+ returns of yesteryear, but then, we're in a savings glut.
>government structures the economic regime to favor the interest

That's it. If there's central planning(no matter to whom) it's socialism. And, regarding 'lock-in advantages', without a government-backed credit expansion, it'd be really difficult for companies to get as much market cap.
I know the (non-bitwise) boolean operators have shortcutting behavior, but if evaluating the second clause has no side effects, couldn't the compiler just cheat by evaluating both clauses unconditionally and then combining the two boolean results using the equivalent bitwise operation, thus avoiding a branch?
Yeah... becoming a media celebrity and political football two weeks into high school is totally going to be nothing but rainbows and kittens for a geeky muslim kid who has made his town government and police look stupid.
In my school district[0] teachers start at $43,500 and max out at $63,688 (after 30 years and a PhD)

You can pick up some extra stipends if you coach or work in certian departments (STEM) but good luck getting into 6 digits as a Teacher.

When I taught in Massachusetts (where we have a teacher union)[1] pay starts at $36,400 and maxes out at $74,000 (with a PhD) after 19 years.

Turns out that public school salary information is public information. So if you "know" a teacher that is making 6 digits, I challenge you to look up their pay scale and see if you really know what you think you know.

[0] https://drive.google.com/file/d/0B27mc-sxcu8ldW9OTHlLMjZ0SlU...
[1] http://www.pittsfield.net/UserFiles/Servers/Server_1051846/F...
The solution to the excessive API change problem is to force whoever changes the API to fix all the consumers himself before the change is accepted.

The Linux kernel generally uses this policy for internal APIs for example.
The problem with that definition is that it assumes all groups contribute equally to the larger collective. Or at least that if one group contributes less, it is entirely because the other groups have already disadvantaged it in some way.

There are a large number of examples where this is simply false.
Ask HN: How do you find a trustworthy technical co-founder?
I'm in the beginning stages of starting a company, and I know that having a strong team will improve the company's chance of success. So I'm trying to figure out the best way to recruit a co-founder that is trustworthy, preferably technical, and has strengths that balance out my weaknesses.

Any suggestions?
Well, Piper conforms to the Perforce API-ish, and Android and Chrome are both on Git.

Mercurial was pushed internally as being the "better" (for some dimension of better) between it and Git back in 2010, but I think even the most hardline Mercurial fans have realized that in order to meet developers in the middle in 2015, we need to use Git for our open-source releases. We have a large investment in Gerrit [1] and Github [2] now.

So the Mercurial comment is probably entirely based on scaling and replacement for the Piper Perforce API, rather than anything externally facing.

[1] https://www.gerritcodereview.com/
[2] https://github.com/google
Barbie Wants to Get to Know Your Child with the Help of A.I
That's what we are told, I'm not sure it's true.
An off-the-shelf spinning-disk HDD is $50; an off-the-shelf 32GB USB stick (for a flash memory example) costs $15. It's not the size of the device, it's the cost structure and maintaining margins.
We do, mostly. Because Piper is a global repository, we have systems to do global safe refactors, and do so often. If the API changes drastically, there's usually a lengthy deprecation period before the API is switched over.
What school district? Teacher salary is public knowledge. There are very few states that pay teachers 6 digits.
No, you can call obamacare (not the insurer), explain the loss of income, and ask for the credit. You'll get it, obviously with penalties if you lied.
Why not IBM? Why not Microsoft? Is that what the HN crowd has turned into? You now have to justify the non mainstream solution like a scared mega-corp career drone who will only go with the safest bet?

Git isn't so awesome that it's inconceivable that people would be willing to use something else.
Interesting. See also "Another huge security problem" posted a few minutes ago here. Maybe CBCrypt can use MAKWA.
i have been to europe. trust me, the so-called stars of european tech community are definitely overhyped. Not only do they solve much smaller problems, their beliefs and thoughts are really small too. The engineers they attract are very average not rockstars at all.
We have been using this at Hootsuite, and it's been a really smooth experience, especially when compared to Yammer.
Small world - my dad's another one of those 4 HP-ES folks left from the blue days. I agree with the advice here and I've forwarded him a link to the comments (hi dad!).
The reason why whatsapp can keep it small is because they decide features based on engineering cost first. Does the designer want a feature or UX design that would be a pain in the ass to create with this UX kit? Is there a probably uglier equivalent that would take 1/10th of the engineering time? It gets shot down and we do it the engineer-simpler way.

One UX example in the iphone app is the action sheet that pops up when you want to send photos or your location. While in facebook it gets embedded in a fancy keyboard drawer. The action sheet version probably took about 5 hours total for all of it, while facebook messenger's version probably took 500 hours minimum.

Another example on the backend is how they are relatively stateless, do not keep chat histories, do not have real multi-device w/ one account capabilities and so on. Each of those features would increase engineering and machine cost, sometimes significantly.
I have spent a lot of time making non-useful things, including every project I've ever made with an Arduino.

And what's with the "practicing Islam" thing? I was in this group where I memorized the Sermon on the Mount in junior high, in addition to going to church and doing choir. We got cookies every week. Seriously, no one thought I was getting radicalized when I "practiced" the religion of a radical Middle Easterner three times a week. Joke's on them: I got so radicalized I refused to join the church because of the hypocrisy I perceived (as a self-righteous mildly aspie junior highschooler).

And we made actual explosives at school in my day.... good times.
Jim Dalrymple on Family and Losing Weight
LATEST NEWS: Terrorist-sounding-named boy Ahmed Mohamed gets into White House with ticking device! The boy was given safe-passage from a guy named Hussein. Both are being investigated.
I'm really trying to understand how anyone can think this is sensible. Maybe 20 years ago when these laws were written by people who had never used WiFi at a cafe before, but surely everyone involved with writing this bill intuits that this sort of a measure is utterly worthless and just induces frictions. Maybe it enables prosecution later for lying? Hard to believe they think that outweighs the costs.
Remember the context is replacing Forth for where it's used. This is often in bootloaders with basically no storage and sometimes under 32-bits. I'm not sure how well Ada works in such situations. So, we'll need a HLL that's readable, safer, easy to compiler, and easy to produce both CISC and RISC code for. Wirth & Jurg threw Modula-2 together in a year or two for Lilith with students routinely porting his stuff to new platforms in months rather than years. So, a new Modula-2 variant seemed like an easy replacement for Forth.

"but that's just a matter of getting more programmers interested."

Won't happen: they hate Ada as much as LISP. More given Clojure is going mainstream but Ada still isn't. So, if I want to use it, I have to deliver the result in their language or build killer app that hooks them onto Ada. The first is easier to do most of the time. Adacore even acquired a company that specialized in deploying Ada apps as either C or C++. So, it's a proven model which could be applied to a simpler language (eg Modula-2) for bootloaders, etc.
That is pretty much how Facebook evolved initially as well—initially, there wasn't much interaction outside of your own college network.
My bet is that the engineering teacher is the sole adult geek in this environment and is used to those around him acting this way. I feel for him. There's a personality that's overwhelmingly common in schools, that seeks conformity and uses their own ability to be frightened as a weapon against the weirdos. Perhaps someone can describe it better than me.
You seem to forget that it's a 14 year old kid.
Concrete instances are needed to provide examples.
I thought that they intended to replace Cassandra with FoundationDB:

http://www.businessinsider.com/why-apple-bought-foundationdb...
The Black Family in the Age of Mass Incarceration
I think "gefahrgeeignete Dienste" could be translated as "services with potential for dangerous misuse", no?
Yeah, last thing I want on my network is Facebook and all the shit that comes from it.
The press release from the school tells you everything about how they view this situation. They took a bad course of action, and now they're going into overdrive to justify why everything the adults did is ok. They'll probably add even more restrictions on what students can bring to school to make sure they don't look like fools again.
I guess that works for the Linux kernel, but I would presume that for a large distributed operation like Google it would be much better to simply deprecate/version APIs and have the project teams update to a deadline.

I mean, it's presumably impossible to have a single computer running a single OS build all of the Google software and run the testing.
Obama just tweeted the perfect message for Ahmed Mohamed
My Map Tracking Refugee Crisis in Europe and Migration Routes
What can a non-academic mathematician do that makes the world a better place?
I'm not saying inflation is the savior. I'm saying that in the current system, deflation can evaporate the money supply quickly and is a huge risk factor.

The reason is that ~90% of the money that exists needs to be continuously rolled over into new loans to maintain the total supply (and it actually needs to increase a bit [ie. inflation]). At any given time, only a small fraction (~10%) of the total supply is available to make the upcoming interest & principal payments. If new loans don't roll out in time (to replace the money destroyed by the principal payments), you can enter a situation where there is no legally manifestible currency (banks are completely insolvent) without some seriously disturbing hackery and deception.

You begin to hit serious problems (many individual actors will fail due to 0 flow) before you even get to that point. This is just the ultimate fate of our economy.

Edit: What we really need are accurate and accessible simulations of our economy so that everyone has a chance to understand it.
How is a timer with wires and circuits "not just something"? Are you implying that the fear of this device was somehow justified?

The kid is 14 years old. So what if his invention isn't useful? He was enthusiastic about it and he probably learned something from it. Maybe some of his classmates could have learned that electronics aren't magical mysterious black boxes.

He took the object of his enthusiasm to English class. Yes, if he had left it at showing it to the engineering teacher this whole thing wouldn't have happened, but that doesn't mean he was wrong to show it to his English class.

What exactly about his behavior do you see as "asking for trouble"? Because I don't see anything that even remotely qualifies.
Voucher and Charter School are two different things. Charter Schools are taking over Public School System. Vochers are evil for many social reasons. I'll just focus on one.

So Vouchers really will be the new segregation tool for the 21st Century. Your money will be used to send kids to religious schools you don't like teaching Islam, Christianity in all its forms, or who knows what and if they want to teach the children ignorance and hate and you as a tax payer just flipped the bill for this and can't stop it. I can't see a good voucher system that would answer my fears of miss used funds spent on poor education back by people groups that will not teach based on various world views that are not politically correct and just wrong. Our Brain Drain in America will go into Nuclear Meltdown.

To quote the 2002 Supreme Court Voucher Dissent:
Justice Breyer on Descent “... all religious institutions cannot be given equal opportunities to the government funding and trying to do so not only turns back the clock on the Constitution, but creates a powder keg in our society.” http://www.pewforum.org/2002/06/28/judgment-day-for-school-v...

Back ground: I went to private school and graduated with a Theology Degree and worked as a Pastor for years. I absolutely know that many in the voucher movement see the Government footing the bill for their Christian Education. You have no idea how deep Crazy Christianity can get (Westborogh is just the tip of the ice berge). They will spew their version of crazy that they got with no academic or logically training to children with your tax dollars paying for it.
You are right, but it is so difficult to not be angry about what happened. I have some growing to do. I am the author of this. I feel very strongly about things like this, and I think harsh criticism is warranted, although it is a bit too ad hominem.
> in much of northern Europe this combination is a perfect way to get around.

Haha what? SJ (the Swedish railway company) doesn't allow the transport of bicycles in any of their trains. At least in southern Sweden you have the Öresundståg where you're allowed to take the bicycle with you.

I also like the combination of bicycle+train, but you can get a bicycle rack for your car and lots of long distance bus companies offer to take your bicycle with you.
Anything code signing related is janky because they don't dogfood the codesign system they create for 3rd parties.
Because private sector investors have an interest in making a return on investment, which product companies do in spades, but government has an interest in creating jobs, which these product/app startups don't typically do well at all. So why should government pick the same types of "investments" as Silicon Valley VC's when their criteria and end goals are so completely different?
I find it funny how you completely ignored the most important aspect of the equation.

The student.

The students are choosing to attend those charter schools. People choose things that are better for themselves. Not always, but often enough that you can safely assume it's true for the majority.

Why are they doing that?

Could it be, that in spite of everything you mentioned ... charters are a better option for the student? Isn't that's what's important?

What's broken with the public education system isn't the funding, not the teachers, not the unions, not the administrators, or the facilities. It's none of those things.

It's demented notion that the system exists for the sake of the teachers/unions/administrators/etc. It doesn't. It exists for the students. Do what's best for them. Let them choose where they spend 12+ years of their life.