skysight-inc/HackerNews huggingface dataset:
This isn't even approximately true. Almost everything we know about optimal techniques for learning is being applied in real educational institutions. But, not every teacher is as effective at applying them, and furthermore, it takes time to do a full overhaul of all parts of everything.

A more effective lament would be, it's too bad these techniques don't yet have universal application. But the above comment is just sniping; it's a claim that educators aren't even trying. Which, aside from being false, is acutely unhelpful.
This is profound:

"Something interesting happens when the cost of tooling-up falls. There comes a point where your production runs are small enough that the economies of scale that justify container ships from China stop working. There comes a point where making new things isn't a capital investment but simply a marginal one."

The West can return to manufacturing if it becomes a function of the creative class. This could be a major trend for the next decade.
Scott Johnston on entrepreneurship in the valley
In my opinion YMD is the most useful because it is the most visually distinct from the other two. A date like January 2nd 2012, when arranged in either MDY or DMY format, is difficult to distinguish from February 1st. YMD on the other hand is obvious, independent of what the reader is used to.
One can program in Lisp in an imperative manner very easily and likewise one can program in Python in a functional manner very easily. The big difference between Lisp and Python (or Ruby) is not the functional nature of Lisp, but rather it's homoiconicity.

Re Java, I write CLI programs in Java all the time. It's fine for that, other than the annoying 1 second startup time.
FBI to monitor Facebook, Twitter, Myspace
...and losing 22 students due to asbestos in a single building isn't unlikely, according to your common sense?
Matter of pain threshold I guess. Personally I prefer spending the odd hour on tidy zipping and labeling (yes, both ends of the cable) over cable-pulling during an emergency at 4am...
I've been programming and lifting weights for years now, and I can attest to how well they work together. The two times I'm most excited to code are consistently (1) when it's late and I know I should be sleeping, and (2) immediately after finishing a good workout at the gym. Interestingly, I got off to a similar start with both activities:

"I don't know about this, I've always been pretty small guy. I'm not just a weightlifter." "Dude, shut up and come with us."

"I don't know about this, I've always just done design stuff. I'm not really a back-end guy." "Dude, shut up and read this PHP guide."

Easily two of the most transformative conversations I've ever had.
I think you're missing the point by taking the 100-year number literally. Don't compare the Korea of today to Pittsburgh in 1912. Rather, note the difference between Pittsburgh in 1912 and Korea in 1912, and observe that in many ways the U.S. (and other Western nations) has been consistently ahead, by some varying but ever-present margin, for pretty much the entirety of that duration. There's no reason that won't change over time, and the fire in the bellies of the people in the other countries to become the best in the world is what will make it happen.
And then a secret mode where, heading to the URL, a cat shows up on screen and appears to examine you through the display, measures up the browser window, tries to look up at the browser chrome, punches something into a calculator, etc. Cat Technical Support.
Does anyone else get tired of Wired's sensational headlines, that come off as spammy? The logic in their headlines is often faulty. Which thus keeps me from reading their content, or taking them seriously.
Initially 5 min, increased to 20 min. Phosphenes are not uncommon if the anode is too far forward and if the circuit is intermittent. Ramping the current up and down is a good idea. I would only use a battery powered supply myself. The video http://www.jove.com/video/2744/electrode-positioning-and-mon... mentioned above is excellent, incidentally (wooden acting aside).
>Where do the 700,000 Android phones that get activated every day get made? Is Google blameless because they dont make it themselves?

But..but..but...as we are tirelessly reminded by some folks here, Apple takes most of the profits of the mobile handset industry, so they're in the best position to lessen their huge margin by a few percentage points so as to not endanger the lives of the people that make the phones. If they make the most money from making people work in inhumane conditions, they deserve the most blame, esp. since they have the most leverage to pay more.
try sites like vworker, elance etc
Well, remember that until recently, BIOSes ran in real mode with it's memory constraints (remember the 640k limit?).
It's interesting that a group of people that is so in favor of free information (the "Internet" type of person) would also be almost equally in favor of control over information that pertains to them (privacy). Don't get me wrong; if a person wants to be private, I'm all for them getting their wish, but, to me, it seems to go against the ideas of open source information and a more transparent structure of communication.

As far as Anonymity goes, I believe that being anonymous gives people the freedom to complete their own desires more easily, and puts the pressure on the person and the system to being about good behavior rather than simple peer pressure.
Also don't forget that rsync does not overwrite a remote file until it's completely uploaded.

Compare to ftp, sftp and scp, which overwrite the file from the start, possibly breaking your site during the transfer (or definitely breaking your site if the transfer dies part-way through).
The industry has trained people for a decade that primary calls to action look like buttons. People scan for this as a learned behavior, because scanning accomplishes their goals faster (true for most HNers), they don't enjoy reading, they can't read well, or they've learned by painful experience that words on a computer screen are likely scary gibberish like "screen resolution" and "defragment" and you should just click the blue thing in the bottom left corner followed by the blue E so you can get to your Googles.
you can use hpn-ssh (high performance) with aes128 (if your hardware has AESNI/padlock/etc) or rc4 (probably faster if your hardware lacks AESNI/padlock/etc) to eke a bit more speed over local connections on trusted lines. throw in compression and you can get good speeds.

rsync-to-rsyncd over a local link is probably faster though (requires more setup though).

You could probably just pipe tarballs through nc too. ;)
Gruber makes a lot of money from RSS ads($6500/ad), thus the more he plays to his fan base, the more money he makes.

http://daringfireball.net/feeds/sponsors/
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I believe that iBooks also count as a publisher minus all the 'good' things a publisher would give you. So I wouldn't say that publishers are going to become obsolete, I'd just say if iBooks really does pick up we'll have 1 publisher instead of several.

Doesn't sound good for authors or readers.
re "count both":
It seems that many many YC startups have shown their work here, and they will swamp any others.

From the title, I thought this would be about projects that began as "Show HN" (not began as YC startups, and then showed HN), and I find that idea, of sideprojects that became something greater, intriguing.
It's people like you that make me glad I'm alive and on the internet. Thank you.
If the salts are different, it will definitely change.

On the other hand, using the same salt twice will change the hash if it's put before the data, but not if it's put after the data.

Given an MD5 collision, you can apply a common suffix and still have a hash collision. Applying a common prefix changes the state the hash process is in when it reaches the colliding data and this breaks the collision.
Everything You Thought Would Be Referenced Isn't

Lovely premise, but how am I expected to take this seriously without sources and references?
There was a lot of nice things there, but .. I'm still confused :D
I'm a programmer and an athlete as well, and I find that I absolutely cannot code after coming home from the gym, I'm too exhausted to get in a groove.

(My workouts these days are weightlifting ones as well, so it's not that I'm not doing comparable workouts.)

Just want to throw that out there. I still recommend going to the gym, and love it.
It's always been my goal. Well, I've tried various ways to get there that haven't worked, but I haven't given up, even at 53.

I'm a little surprised too at how much pushback you're getting on this. Isn't financial independence part of the point of all this entrepreneurship we talk about around here?
Even at a coarse level there are hundreds of identified structures in the brain and hundreds of identified neurotransmitters like dopamine. Each neurotransmitter may act to produce different effects for each part of the brain.

No one will ever "fully understand" dopamine.

Almost all medications will have some side effects that patients and doctors have to balance against benefits. Good psych doctors know that everyone is an individual and even for the same individual treatments sometimes need to change.

I think your "dopamine dependency" concerns are greatly overblown.
I just found this and...I'm curious about how well it works.

Really, really curious.

http://www.davidhuskey.com/tDCS/
I find that the learning in different places thing is really key. In school I find that for exams where I've been forced (by schedule) to study everywhere (my apartment, friends, classroom, different libraries, coffee shops), I find it easier to recall methods and approaches. For straight up 'facts', I don't really find a difference, but when tackling various problem solving exercises, it really has a difference.

I also find that studying while listening to music is always risky, since you may find yourself craving music during the exam.

Honestly, I've read many books on learning and brain plasticity, and they all give somewhat contradictory results. Perhaps because cited studies rarely use the same approaches to learning/testing.

For example, in this article, we are told that 'topic-focused' studying is not the way to do it. But what they've really established is that in things which have multiple facets to work away at, an interleaving approach can produce better results. But what about learning in things in which there is a strong linear progression, or at least a strong 'prerequisite' relationship. In many technical courses, courses are often structured in this way, so that each 'topic' builds heavily on the last.

Honestly, the only consistent thread that I can really take out of all of this is that learning anything takes consistent, long term, DIRECTED work. It is possible to drop something your memory, and keep it at an 'adequate' level for a long time through somewhat consistent, more 'relaxed' work, but this 'knowledge' will leave you quickly as soon as you stop. Where as if you have long term directed work, it will end up embedding into your memory. After you stop, you may not be able to immediately recall these things, but after a quick refresher, you'll retain very very large amounts of information.
To understand the reasons why many people who will argue strongly for fair use, etc., still find this wrong, you have to look two steps ahead.

Let's say 37 signals has done the extensive work to create a page design that really converts. And we live in the world where anyone else who wants to lift their carefully-researched design can do so in 10 minutes, and reap the same benefits.

Unfortunately, that would put 37 signals at a serious disadvantage -- assuming that customers don't know who first created something really good, the actual creator always loses. All of the copycats get the same benefit with a cost of 10 minutes vs. 10 days.

So the only way 37 signals can benefit from their work is to find a way to make it more work to copy than to recreate.

To do that, they'd need, what -- some kind of heavily-obfuscated Flash? I'm sure if the need were there, we'd find a way to really lock down web UIs.

> In this case, 37Signals was given free rein to track Curebit's customers. Sounds like a good deal to me.

Unrelated to my points above, but never mind tracking... a hotlinked image is the perfect invitation to tweak your own layout, then change the original image files. Sadly, it looks like 37 signals missed their opportunity to paper over Curebit's page with animated penises.
I'd expect part of the problem is that these are multi-national companies. Even if the box is in America, the office overseas could be targeted for legal action.
One of the resources which psychartrists (and psychologists) use in the diagnosis of ADD/ADHD is by using the Diagnostic and Statistical Manual of Mental Disorders handbook (DSM).

http://en.wikipedia.org/wiki/Diagnostic_and_Statistical_Manu...
pen.io started here. Was noticed by the press and investors here.
Ask HN: referral reward system
I am looking to implement a referral reward system for a project I am workign on, but wondering if there are already easy to use plug-in-play systems available which can help me reward a user bringing in his friends to our system.

Free is good, cheap is ok.
Just to add to the anecdotes I find myself quite motivated to code after a weightlifting session.
This is really good information. We did do some level of usability testing but we still rely on content for important messaging.
You need more projects. They don't have to be fancy, but they should look good. Once you’ve filled out your portfolio, you should go to meetups and talk with some other designers/programmers. Many of them are busy, and they might farm some work out to you if they think you’re dependable.
What do you mean exactly when you say that the iPhone "is a prestige phone", that it is "at the very highest end of the market", and you use this to explain the iPhone's popularity? Do you mean:

1. It's the most expensive smartphone?

2. It's the smartphone with the highest specs?

3. It's the most popular smartphone? (which would be a tautology... it's popular because it's popular)

"Desirability" and "cachet" are outcomes, not first causes. To what cause are you ascribing the iPhone's success?
O.P.C.
I feel like this is exactly what's going on with the HN G+ circle. About 80% are reposters, who I immediately remove from circles, about 15% post interesting stuff, and about 5% are just people sort of worth following like Linus Torvalds and Richard Branson.
I started reading the literature on tDCS in November, 2010. There have been articles in the popular science press on tDCS at least since then. I was motivated to build the device after reading an article in Scientific American from November 2011, one year later: http://www.scientificamerican.com/article.cfm?id=amping-up-b... And now I must get back to work...
It can't hurt to "build an impressive app of your own", but as long as it's something that is useful to other people. Don't just build something for the hell of it. Build something that you're passionate about; that you can apply to a real problem. You could also work on an open source project - the community can act as a "client" of sorts.

Ask everyone you have interacted with on some sort of professional level to recommend you on LinkedIn. If they don't have an account, offer to help them sign up.

Email everyone you know and tell them you're looking for work, and make it clear what you do (this should be in completely non-technical terms).

Answer job postings personally. Online jobs have a lot of applicants, so make sure you are showcasing your personality, as well as your skills. Not every job is a good fit, so better to eliminate the obvious duds as early as possible.

Be honest. Don't try to sound like you have more experience than you do, but also don't be afraid to speak authoritatively about topics you know well.

Respect yourself. You are interviewing to solve someone else's problems, so if you're the expert in the room (so to speak), don't be afraid to be firm on how things should be done. Quality clients should respect you for this, and you're better off without the few you'll lose anyway.

Network anywhere and everywhere!
None of that rules out the iPhone status symbol angle.

What the "best product" is, is so completely subjective and since when did that matter anyway? You probably think that Macs are the best computer...why aren't those the biggest in the enterprise space?
mongo and redis - aren't both of those designed to serve basically the same purpose? why both?
I do disclose technology and general themes involved but frequently the contact says I cannot mention company names or individuals involved. Also even when I can, I cannot show the result of the projects to potential clients. Therefore, I only have 1 project in my portfolio showed to clients...
The grid comparison of features vs the core jQuery UI module doesn't seem right. Of course a behemoth framework will win out on a feature comparison against one module of a modular framework.
I can't get past the problem of Kendo only properly supporting webkit.

EDIT: Should have clarified I'm referring to mobile.
This is a terrible title to an ok article. Basically it is about spaced repetition and the contextual interference effect.

The argument for the latter being if you focus on one thing your brain will rely more on short term memory in working things out. If you vary randomly within the domain, constant switching of context forces more reliance on long term memory structures. So you learn slower per session but show better generalization and retention of material in the long term. Its good if you are just learning but not useful if you are trying to figure something out.

The mechanisms are little understood but what's really cool is that a similar effect is seen in machine learning. http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.117...

http://en.wikipedia.org/wiki/Varied_practice

http://jn.physiology.org/content/106/5/2632

http://www.cogsci.northwestern.edu/cogsci2004/ma/ma239.pdf
How To Have an Amazing Set of 6 Packs Abs
Absolutely right. The second article is so hypocritical. His point about Apple being targeted as it was the most successful company is absolutely right. Media has to concentrate on number 1 and being number 1 brings responsibilities. People follow you. If you have sweatshops, then every one will try to do the same.Be the number 1 and do the right thing. It's hard. But guess you can try
> Also from the NYT article, HP apparently lets Foxconn have a bit more profits "as long as the extra goes towards the welfare of the workers". So kudos to HP for putting its money where its mouth is.

Absent any kind of details about this suposed arrangement, that sounds like a PR flack at HP spinning the fact that they can't negotiate better deals with Foxconn into something altruistic on their part. Or, more succinctly it sounds like happy horseshit.

Edit: spelling
I don't think movie and TV copyright infringement will be solved until there is a compulsory licensing scheme in place.
Yeah, I'm puzzled by them not caching, e.g. they could copy an image of the JVM in its starting state.

Maybe the "unix hostility" is due to platform agnosticism ("run everywhere"), servant of two (or three) masters. e.g. issues in file libraries and AWT. But py/rb/perl manage this OK... so idk.

BTW: bad practice to split up functionality (and loses many benefits of Java), but a performance solution would be a script that handles the "--help", and for anything else starts the JVM.
One missing advantage in #3 is the ability to launch instances across continents
Illegal != Immoral. Using phrases like "Criminal behaviour" implies both.
Older versions of Firefox, Internet Explorer, and Safari are supported. Can you elaborate on the phrase, "only properly supporting WebKit"?

EDIT: Got it. Yes, you're correct; currently, Kendo UI Mobile provides UI widgets that match the theming and functionality of native controls available for iOS and Android.
That's absolutely adorable. Anybody want to make this with HTML5?
I would pay for #16 right now.
Actually, I asked more to learn about which Show HNs became successful. I was curious if I could detect any common differences the startups themselves that posted on HN in their infancy, as opposed to the total pool of startups or the total pool of Show HNs overall.
(Of course, as someone pointed out, there's also the fact that startups who posted Show HNs are going to be much more likely to have gone through an incubator like Y Combinator. That may be a distinct enough difference that it washes out anything else about their initial product or submission. Still, I can't imagine EVERY success from Show HN was a result of subsequently doing Y Combinator...)

On a more selfish note, I also figured that people discussing this would cause me to learn about more interesting companies with ties to HN that I hadn't heard of before.
Well? He is. A blockade is apparently "criminal behaviour", but police beating the blockaders with clubs until at least twenty of them are hospitalised and one of them dies gets a "How do you know the union leader was killed unnecessarily?"
I've said this often. I sincerely believe that this is the only way forward.
good and evil are not religious concepts.

Ethics is related to all things, including economics.
Sleek & Elegant Rounded Buttons
That's a fair comment, which is why I made a point of highlighting available plug-ins like Template, Globalize, and others.
It is a very interesting possibility.

My concern is that if this technology truly is revolutionary but does not carve out a sufficiently large piece of the pie for the traditional parasites (e.g., distribution moguls and IP lawyers) it could very easily be outlawed. (Probably not effectively, but note the number of people who are in jail today for replicating a plant.) This will be hard since 3D printing potentially increases wealth with much less involvement of money. So how will they take their slice of pie?

If it really is a disruptive technology, there will be plenty of cases where the economic advantages eliminate someone's job. I'm old enough to remember discussion about US factory workers being replaced by robots. Factory automation turned out to be far from the main threat to US factory workers' jobs.
I've actually used that hack for "--help", but I mostly use command line parsing libraries (e.g., JCommander) that generate the usage message for you. The users will just have to put up with the slight delay....
> Really, I recently had the good fortune to interview Robert Bjork, director of the UCLA Learning and Forgetting Lab...

That's the source. This isn't a research paper - it doesn't need cited references to be submitted to the journal of Wired.
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