skysight-inc/HackerNews huggingface dataset:
> The overall environment matters more than the teacher.

You seem to be suggesting that the quality of the teacher can play only a minor role in the educational outcome for disadvantaged students. Yet there is considerable evidence to support the opposite view. Here is a summary of a few studies as reported in Teaching as Leadership [1]:

"The schools that are highly effective produce results that almost entirely overcome the effects of student background" [2]

"Having a top-quartile teacher rather than a bottom-quartile teacher four years in a row would be enough to close the black-white test score gap" [3]

"Differences in this magnitude -- 50 percentile points in just three years -- are stunning. For an individual child, it means the difference between a 'remedial' label and placement in the accelerated or even gifted track. And the difference between entry into a selective college and a lifetime of low-paying, menial work". [4]

[1] http://www.amazon.com/Teaching-As-Leadership-Effective-Achie...

[2] Marzano, R. J. What Works in Schools: Translating Research into Action. Alexandria, Va.: ASCD, 2003, p. 7

[3] Kane, T., Gordon, R. and Staiger, D. Identifying Effective Teachers Useing Performance on the Job Washington, D.C.: Brookings Institution, 2004, p. 8

[4] Peske, H. and Haycock, K. Teaching Inequality: How Poor and Minority Students Are Short-Changed on Teacher Quality: A Report and Recommendations by the Education Trust. Washington, D.C.: Education Trust, 2006, p. 11
Genuine question, How does one make use of these courses if living outside US. Just the available online material?
I'm not sure what you intend with your post. I assure you I'm not responsible for laptop purchasing decisions in the UK civil service.
> German genders don't make sense - why is a table a strong, proud man, whereas a mangy, flea-infested feral tomcat a proper lady?

This should be the least of your worries and - in fact - should be the last you should learn. Just pick one gender for all nouns. You'll be understood anyway.
This means that I'll be running Guix on my Novena when it arrives.
Hundreds of guns smuggled by corrupt TSA employee
It does say "a compiler/toolchain". Opus has both fixed point and floating point implementations. The fixed point one was extensively tested on ARM too, I'm sure.
Www.mizar.org
Coq.inria.fr
> instead of speed

Not when developing crypto. You have to look at execution speed, too, to prevent timing attacks.
9Gag App :P
U.S. did not “hack back” North Korea
> The incorrectly squared numbers would be expected to be found randomly with probability around one in 2^128

1:2^128 is an incredibly low probability. Universe is only around 2^86 nanoseconds old. For all practical purposes, an event with a 1:2^128 probability is impossible.

They say that they found it with randomized testing (although one that explores "a class of rare corner cases") and dismiss the claim that this is a class of bugs that can only be found by analysis of the implementation.

I think a test that manages to find a bug like this can not be called "random" (as in, throwing random inputs to a black box). Obviously I don't know the details, but I am sure their test incorporated a great deal of detailed knowledge of algorithms used in the computation.
Bitcoin 2015: Ecosystem Grows Despite Price Decline
This culture believes that management and finance are the most important and valuable things in the world - more important than science, more necessary than art, more powerful than physical reality.

This culture is spectacularly wrong, and will be discovering exactly how wrong over the next few decades.
"... Most of them start their own "label" and keep everything for themselves. ..."

Courtney Barnett (Milk records) does exactly that ~ http://www.yenmag.net/music/courtney-barnett/ and http://www.milkrecords.com.au/

I asked this Q because this was one piece of advice David Briggs (https://en.wikipedia.org/wiki/David_Briggs_%28producer%29) gave NY and Crazy horse - "Never give up the master tapes."
My monitor plays the whole range as well, that's what I calibrated the height sweep to.
I'm a bit curious how dealing with different opponents is dealt with. It seems that to prove such a model "optimal", some quite strong assumptions have to be made regarding the encountered opponent strategies? Or it's provable there is some optimal exploration vs exploitation tradeoff in discovering them?
When away from a power socket, I use Safari instead of Chrome. Saves battery a LOT. Was able to run 11" Air with 19 tabs on Safari and with vim (on iTerm). 2hrs later still had 95% battery left.
"At the same time each day (I suspect this is scheduled under cron)"

Spectacular.
That is still far far better than a forum site controlled by a few moderators. In those sites anything said that contradicts the moderators interests is deleted. Those places are terrible, especially if they are a main site for that topic.

This does not describe this site, to avoid any confusion.
Microsoft's 'Spartan' browser
I found 8GB a bit pokey, 16GB much better. Generally have open Firefox, Chrome, Sublime, Photoshop, Illustrator, an IE testing VM, Terminal running a couple of web app servers, Spotify and maybe another Windows VM with Visual Studio and Firefox (recent project has involved some .NET). I recognise that my workflow would be a bit RAM heavy though.
How to change Windows password
Java quirks and interview gotchas
I didn't think you were. My point was that if they can quickly fix this issue with a simple law banning government entities from putting disclaimers at the bottom of an email I'd rather that than spending millions on new hardware to prevent printing. Considering most of these people will use Word + Internet Explorer all day money doesn't need to be unnecessarily spent on new hardware.
But I'd like to know if the power density of this device can get anywhere close to the "health hazard" limit. We need citation or numbers about that. I'm sure you can already harvest some microwatts from wifi, and most people agree that nobody dies because of that.
Maybe because of Fahrenheit 451?
My interview and job description was very different from what my day to day activities. I would get in trouble for being with students (In my job description) to do paper work (not in my job description unless the catch all "whatever is required by your supervisor). Loved working with students and teaching in the classroom, and even supporting others in their classroom. The other high stress because someone decided I can do 12 small items every week which equals two days of paper work was extremely frustrating.
Hacker Posts “Death to Charlie” with ISIS Flag on French Municipality Websites
college-educated? It's even worse- many schools require teachers to have a masters degree also.
Actually, on HN the definition pg has endorsed for hacker is as a synonym for 'tinkerer' (not his word). It's not necessarily about code, but it is about the mindset of curiosity + adventurous.
We do this in Chicago.

We call them "magnet" schools, as they are intended to attract the best and the brightest.

On the one hand, these are the most diverse schools in this heavily segregated city. They give students from rough neighborhoods a better chance to live a different life.

On the other hand, they decrease the quality of neighborhood schools (non-magnet) by skimming the cream from the top, if you will.

Now, the real problem with this system is how it deals with the intelligent but apathetic student. This student will not meet the criteria to enter one of these magnet schools, regardless of his or her test performance, and will be left in a virtual dumping ground, surrounded by few academically inclined individuals to motivate or otherwise inspire him or her. His or her teachers are likely to be burned out by the disparity of their environment. He or she may not have the right combination of toughness and grace to survive four years in this environment and is likely to become one of the roughly 50% of CPS students who drop out.

Now, does this seem like an appropriate path for a bright student who was unmotivated to complete their homework in the sixth or seventh grade, perhaps due to crippling emotional stress (jailed, drug addicted, or murdered parent)?

I don't have a better system, but I think that we can do better.
Except 'orbit' doesn't mean they put a satellite 2000km high and let it fall back down. It means the satellite travelled at least once around the earth, so that's equal to at least 40000km of range.
Of course nobody dies of WiFi. I'm not claiming that WiFi kills you. What we are talking about here is transmitting multiple Watts (or else your phone takes forever to charge), or even more, through the air. That's a lot of orders of magnitude more than microwatts.
Checksum issue?
Show HN: Dewmail: An open-source email parsing microservice for HTTP APIs
I run on 16GB. The thing is, it always seems to use up the amount of RAM you have. I don't have much open (XCode, Sketch, Chrome), but it's still using 15.36GB. That's including 720MB XCode, and 325MB Sketch. It's storing 9GB for apps and 4.8GB for file storage.

Generally, this just makes things that bit faster. The more you can store in RAM (even trivial things), the better. I've never had any slow downs, and don't have to worry about opening Photoshop and Illustrator along with XCode, Sketch and 20 Chrome tabs.
While I understand where your argument is coming from, it is important to ask the question: how many times a day is this piece of code executed on all computers worldwide?

Surely the chance of one person running into this bug is extremely small, but what about all the people on earth combined?

Nevertheless, I think we can classify this method of testing as some sort of hybrid between brute force testing and auditing; I don't think the authors are dismissing that claim this either, but are merely stating that there are ways to make very informed test cases without looking at the code.
From my understanding, the money wasn't made from the odds per se, but from the rebates that the betting agencies offered because of the amount of money being wagered. When all the maths was done, the limited downside (losing the stake) and unlimited upside (winning much more than the stake) combined with the rebates to give a payout, win or lose.

http://www.afr.com/p/national/the_gambler_GwoSmf5IXaVFjmpyYX...
Perfect play exists but is extremely difficult to compute because it's such a large problem. But they've shown that this program comes very close.

Perfect play also exists in games like chess and checkers. Checkers has been completely solved and computers can play it perfectly. This is not true for chess, though computers play quite well. Go is even harder and the best humans easily beat the best Go computers.
My idea was simply, when buying new laptops that are needed anyway, to choose hybrids instead of "regular" laptops.
Signature collapsing/removal isn't a thing in their email programs I take it. Thunderbird has an option to remove sigs on reply - it's a technically solved problem, it doesn't need a legal solution (that will be impossible to enforce).

You could do this by having a government standard though - they presumably have a statement of requirements for basic software (wordproc/email/browser). Add a requirement that any email program paid for with tax-payers money (which would include free ones installed or supported by gov workers) allows signature/banner/disclaimer cropping.

It's telling that when he was in control of a gov department he didn't have the disclaimer scotched.
I was pretty disappointed with the X1, was getting RSI from the trackpoint, while its touchpad was unusable. I got an rMBP and can't be happier. Hopefully the precision touchpad in the new XPS 13 really works.
Please make a Show HN post. Also prepare for a lot of hits from the random internet. This is amazing.
Notice that the user agent string gets rewritten to something innocuous in HTTP headers but not JS. So sniff client-side through JS.
Can you imagine, that this laptop, first of all, is a mockup, second, it's not for everybody.

If you need HDMI, USB 3 A, Gazillion RAM etc., there is a laptop for you/your company! E.g. rMBP13/15.
It's not as fun as it was >10 years ago. Tablets and smartphones ruined it..
When I read this article, the first thing I thought of was John Taylor Gattto, a man voted Teacher of the Year who had to resign out of conscience. I was lucky enough to spend a weekend with Mr. Gatto at a conference. Very enlightening.
For me personally it was the Tandy Model-100 for a short stint, and then for quite a few decent years, it was the Atari Portfolio. I took that thing everywhere, used it to write tons of code, kept all sorts of notes on it - it was truly 'my' computer in that it stayed with me at all times, which was very unusual back in those days ..
Yet in the poorest areas of the world kids beg for pens/pencils and paper because they can then use that to go to school. Poverty can't really be the entire reason despite the close correlation.
We need to invite you first. Wait a moment, we are going through the requests right now :)
Chrome with 300 tabs open. Some VMware with several VMs (I'm usually doing simulated network stuff).
Functions are implemented as objects in Scala, but this is an implementation detail. Scala implemented over something else than the JVM could have done first-class functions differently. Also, the notion of "interface" we're discussing here (and Uncle Bob is railing against) is the Java-like interface (i.e. using the actual "interface" keyword that disallows implementation, and not abstract classes). Those are not used in Scala. Therefore, they are not required for successful OOP languages.

Note I think Uncle Bob's condescending tone in TFA is pretty useless. The entire article consists of building a strawman. He really annoys me.
Why I don't like open source: my thoughts
One problem I have with the basic income whenever I see it mentioned, or discussed in the context you noted. It's always phrased as "we need basic income because bad scenario X will happen". It's never phrased as "if scenario X ever happens, we will have to institute basic income".

The reason I think the distinction is important is because such proponents are yet to conclusively prove/argue that scenario X will ever happen. And as I don't believe such a scenario will happen anywhere remotely in our lifetimes, we can't and shouldn't use such a wild hypothetical as a valid reason for a huge program. To use it as a reason, and claim it as valid, would be quite disingenuous.

Granted, you do phrase it as "[...]what happens[...]if[...]. That's why we need basic income." But you're yet to prove conclusively that the "if" will ever happen.
As I see it, this problem will only be solved satisfactorily once we have technology (and security) to do away with frigging passwords completely. As the Internet plays a role in ever more aspects of society and industry, we need a concept of identity there that is usable by absolutely everyone without any mental effort.

Until then, this post gives advice worth heeding.
Top Influencers in Security You Should Be Following in 2015
"Unemployment payouts, Social Security ("Old age pension"), Social Security Disability, and Medicare are paid for through dedicated taxes and charges on employers (in the case of unemployment). That's why we usually call them insurance or entitlements. Social Security Disability Insurance, or SSDI, is paid as part of Social Security itself."

And are you able to choose not to pay into such a scheme? If not, then it might as well be a plain tax that happens to be labelled as separate.
I would think the cause of the ridiculous and nasty political divide stems more from campaign finance laws and media punditry masquerading as journalism rather than how the constitution allocates power to three branches of government. It seems to me that many Americans are taught daily to vilify anything that is put forth by an opposing party simply on the grounds of whether or not they have the correct letter prefixed to their title. I think the start of any fix would have to be campaign finance reform and a push for publicly funded elections.
At the risk of being pedantic, in addition to U+2714 (HEAVY CHECK MARK), I’d like to point out a few other check marks represented in Unicode that could be used as well:

☑ (U+2611 BALLOT BOX WITH CHECK)

✅ (U+2705 WHITE HEAVY CHECK MARK)

✓ (U+2713 CHECK MARK)
That 'CCCen' account is an imposter and evil. Please do not link to it or the companion 'CCCdeVideos'. Some background on this issue: https://events.ccc.de/2015/01/03/the-youtube-and-stream-dump...

Here is the official CCC channel: https://www.youtube.com/user/mediacccde

The official recording: http://media.ccc.de/browse/congress/2014/31c3_-_6574_-_en_-_...

The official recording on their official YT channel: https://www.youtube.com/watch?v=MBIHPLFmcgA
The Radically Rational Blueprint for Success of Unconventional CEOs
How we use web fonts responsibly, or, avoiding a font-face-palm
Does the app track wherever you go? Such as, "iPhone was at this location from 2pm to 3:45pm"? Or do you have to manually add locations?

I have always wanted something that tracks my location that I can refer back to. I drive all over, and if I forget to make a note of when I arrive and leave, it becomes a CSI-style investigation, cross referencing text messages and emails and phone calls to try and determine when I arrived and left a client's office.
Got a Dell M3800 expecting a decent trackpad. It's a premium machine and even sub-$500 Acers bring precision trackpads now, right? Wrong, it's excruciatingly low-res and persistently jumps by unpredictable distances on clicking.
Will Scott, an American grad student who recently taught CS at Pyongyang University, described it as such in this talk: https://www.youtube.com/watch?v=zuxlLLeKZZ8

It's pretty interesting.
I think "What societal change explains this?" is a very HN-worthy topic. In fact, that was my first guess as to why a straight pool article was submitted to HN.

But the straight pool heydey wasn't in the 1970's...

If you go back to the 1930's, you'll find that straight pool was a popular spectator sport that often got more newspaper coverage than basketball or hockey. Ralph Greenleaf earned $2,000 a week performing trick shots for Broadway audiences. That's comparable to modern salaries for pro athletes when adjusted for inflation.

I think there's an interesting sociological question here, and that the answer is probably more complex than simply declining attention spans. Ned Polsky, a real sociologist (I'm not!), thought that pool's decline in popularity was caused by the decline of a "bachelor subculture" in America.

Polsky's book "Hustlers, Beats and Others"
http://amzn.com/0202308871

Hope I didn't come across as bashing an entire generation. I count myself right there among the afflicted! Staying focused and productive as a software developer is a real challenge when your computer can become a TV at any moment, as Paul Graham put-it.

http://www.paulgraham.com/distraction.html).

And, besides, "The Wire" is awesome!
> Not having standard ports would be pretty annoying

Good thing it's USB-C then, a single standard for all uses. Now if this takes on (I'm positive it will) you can replace all cables with this one.
In a recent side-project ( nightchamber.com ) I experimented with the idea of something like a "God Login". A user account is automatically generated on first visit and keyed against a uuid, the id is then stuffed into the session, and used to make a link the user can bookmark to get back to their "account".

As long as that link/id remains secret, the user has a unique account to use with no effort on their part.

I'm still not sure this is a good idea, but it seems to work for nightchamber, where the account doesn't actually have much value, and there is no valuable information an attacker could gain by "compromising" the account.
I'd disagree with this. While OS X and Windows are not as transparent as linux, there are enough resources on both that a hacker that wants can go deep on them. In the Windows ecosystem, Mark Russinovich (creator of Sysinternals) and Charles Petzgold readily spring to mind as people who fit the definition of hacker.
Yup, my first thought as soon as I'd read "ping" on this post even
So, you can't charge this supposed new laptop while you are at a desk with it attached to an external monitor? What will Apple do, make you buy a special Apple monitor that allows you to connect more peripherals?
That would be pretty cool-- and although software development is meritocratic, it's not as meritocratic as those orchestras, right?. They simply want the best musicians PERIOD, whereas lots of software companies would probably hesitate to hire someone with a lot of talent but a toxic attitude.
>"Better stop automating things than."

Well, then stop preferring cheaper products/services.
I have a 2013 Air with 8 GB RAM, and there's no way I'd ever consider running Yosemite with less.
Lego Reveals the Biggest Difference Between European and American Parents
Don't be silly. Squillions of people are buying Macbook Airs, and they're doing it because the machine suits them.
Afnic (.fr) honors the hashtag #JeSuisCharlie
20 years of BI company tag lines
Windows RG

http://www.deanliou.com/WinRG/

I remember this being hilarious in year 8
Future Tech Job Board – post cutting edge niche positions in tech for free
I do like a good word nerd.
>At the same time, more and more people have gone to college and the value of a college degree has declined, as more people enter the marketplace with them.

You might expect this to be true, but the data actually shows the highest gap between college and highschool graduates in half a century[1], meaning the value of a college degree has increased.

[1] http://www.pewsocialtrends.org/2014/02/11/the-rising-cost-of...
The AFR linked provided by your parent contains a quote that dispute this:

> Walsh says this is incorrect because they do not get rebates in most of the gambling they undertake.

> And even when they do, the “profitability of our system is statistically significant in their absence”.
Third option wins. It's perfect.

✓ (U+2713 CHECK MARK) <- winner
>> "Chrome with 300 tabs open."

Why? Genuinely curious why anyone would ever need that many tabs open. Why can't you use bookmarks/reading list? It doesn't seem possible that you would be actively using all of those regularly enough to need them all open.
Probably a new USB hub would do the trick.
This is great news! I would be interested to know if they ever intend to expand the trials out to other autoimmune muscle related diseases, for example myositis and its variants.
Have you considered being able to convert between an automatically-generated link/id user, and a username/password user? That way someone could potentially make a more "permanent/secure" account from the easy one. This might require removing a generated account if someone logs into an existing account from a new browser though.
Reasoning about large numbers is hard. 2^128 is considered enough security in any crypto scheme to be "impossible" to break. Consider that Bitcoin uses ECDSA which gives 128 bits of security. This is not brute forceable as there isn't enough energy around to actually flip the bits that many times, let alone do the calculations.
That sounds like an unnecessarily expensive way to go--I imagine that a specialized connector is more likely. The article makes a good point about this category of concerns:

> But just because it will be inconvenient for some users doesn’t mean that Apple won’t do it. In fact, you can almost hear the stage patter when the feature is unveiled: Most connectivity is wireless these days, we’ve made a great $49 accessory that adds all the ports you’d want, and the included power adapter—the most innovative power adapter ever—features a breakaway magnetic coupler and is itself a USB and Thunderbolt hub. I’m making the details up, but you’ve got to think there would be more to the story than, “Yeah, your power plug is also your USB plug, get used to it.”