skysight-inc/HackerNews huggingface dataset:
What? Your math seems wrong.

The registration fee is $99, Apple has paid out $4 billion as of February this year, and there are ~.25 million registered iOS developers in US, let's be generous and say there are 1M registered developers worldwide. It still averages out $4K pay out per registered developer.

How can you use the $12 per iOS device app revenue to extrapolate average developers' income is totally beyond me.
The iPhone and iPad First in HTML5, Google's Galaxy Nexus Second
iOS/Android devices mostly without a real keyboard.

Have you ever tried to write some code without a real keyboard?
It is a big pain.
Are you saying that in private mode you can't use index db at all? If so, then yes I agree with you.
I've never used Sequel Pro, but I've used plenty of other RDBMS GUIs. What's so special about Sequel Pro? It certainly doesn't look like anything to write home about (compared to say the MS SQL tools).
There was a great story posted last year[1] about laying out the MOS 6502. Bill Mensch got it right on the first try, by hand.

[1] https://news.ycombinator.com/item?id=2064030
Embracing and extending the Levy language
Julian Assange could face charges in the US according to leaked e-mails
One thing I don't see addressed is the experience of feeling frequencies that can't directly be heard. There was a study done with a particular piece of classical music, with and without a particular inaudible component to it. The presence of the inaudible component drastically changed the listeners perception of the music. They described it as more dark or creepy (perhaps not the actual words used, but it matches the sentiment). The point is that there may be value in reproducing frequencies that we can't "hear", as inaudible notes can alter the experience of the music.

*not the study I was referring to but its along the same lines: http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5291...
high dynamic range is not about the lowest volume you can hear, it's about the voltage resolution between this sampling point and the next. Base on your assumption, we can all see black whether we use 16bit RGB color or 24bit RGB color, what's the point of using 24bit RGB?
But at a given sample rate, if I'm sampling at bit depth 2, doesn't that quantization error end up temporally shifting the sine wave I'm reconstructing?
I agree. It should be about the performance, not the sonics. There are plenty of old Motown and even Beatles recordings with distorted vocals, bad edits, etc. Your brain passes right over them because of the emotional content of the music.
Oh yes I agree an off board DAC is better. I own the Fiio E7 which I highly recommend for laptops and only costs $80.00. In fact I run a 50 foot USB cable from my laptop to my DAC and the improvement is much better than running a 50 foot 3.5mm TRS.

But the high end ones that are 24 bit 192khz that cost $1k (Cambridge Soundworks DAC magic comes to mind) I have to seriously doubt I'm going to hear it. I really only hear the DAC difference (compared to my laptop and FIIO) when I use headphones.
You're getting two entirely different things mixed up.

192 kHz is the sample rate. 192,000 slices per second. It does not refer to the audible sound spectrum.

20 kHz in speakers refers to the cycles per second of the audible waveform. Normal human hearing rage is 20 hz - 20 kHz. For most people, it's less than that.

A speaker can certainly play back music sampled 192,000 times per second. Most of them can't play tones that are higher pitched than 20 kHz, which is fine because mostly only dogs can hear up there anyway.
Are you guys going to apply again? I also got an interview for W12 and didn't get in, but I'm applying again now and will again and again until I get in.
Google calls for a more secure web & expands SSL encryption to local domains
مباراة ارسنال وميلان
مباراة ارسنال وميلان
http://mushahda.com/ar/05-03-2012/113.html
ارسنال وميلان
بث مباشر مباراة ارسنال وميلان
Washington Post Hires Slashdot Founder
Bigger numbers are better. Right?

It's all marketing, baby!
Robotic cheetah sets new land speed record for robots with legs [video]
Possibly years? They probably wont know either - I can imagine that this could be hard to track if someone is careful enough.
Better and Better: The Future is Better Than You Think
This is completely incorrect, by shannon (http://en.wikipedia.org/wiki/Nyquist%E2%80%93Shannon_samplin...). The sampling frequency determines the maximum frequency that can be captured, not the temporal resolution. That said, a transient containing higher frequencies will be sharper than a transient that doesn't, but its onset time resolution will not be determined at all by the sample rate.

Said another way, two band limited pulse signals with different onset times, no matter how arbitrarily close, will result in different sampled signals.
It's definitely possible for two sounds to be indistinguishable when played separately, but when played together it is revealed that they are in fact different (see link below). Whether this applies for sounds with frequencies above 20kHz I don't know.
I'd like to see a citation as well. Doesn't seem like it would be the hardest experiment to set up either.

http://en.wikipedia.org/wiki/Cent_(music)#Sound_files
I would add the following

*Transactions as first-class entities

Transactions are just data like everything else, and can add facts about them like anything else. For example, who created the transaction. What did the database look like before and after transaction.

Additionally, you can subscribe to the queue of transactions, if you wanted to watch for and react to events of a certain nature. This very difficult in most other systems.
No. It's both.

The basilar membrane is a loosely tuned resonator. The hair cells placed on it fire beginning on the positive zero crossing. So, to a first approximation, the ear is in fact a filterbank.

There is a time domain component in that the cochlear nucleus contains nerve cells that watch multiple hair cells at a time and correlate the firing in several different ways. Some attempt to discriminate pitch, some convolve and correlate in-phase firing energy, some look for tones to end, etc. This information is then forwarded on to the brain.

However, getting back to your point, no hair cells will fire if the basilar membrane doesn't move, and it's tuned to a frequency range.
Obama pledges to stop an Iranian nuclear weapon.
It would be great to also add a short human-readable (i.e. non-legalize) version of each document. Something along the lines of what Creative Commons folks do with their licenses (e.g. http://creativecommons.org/licenses/by/3.0/)
Yes, thats basically it. They do this _exceptionally_ well in fact.

Typically the technique used inside DAC is to digitally upsample the signal (by duplicating samples, often to a few MHz— also allowing them to use a low bit-depth DAC) then it applies a very sharp "perfect" digital filter to cut it right to the proper passband (half the sampling rate). The analog output then contains only a tiny amount of ultrasonic aliasing which is so far out that it's easily rolled off by simple induction in the output.

This isn't just theory. Here is a wav file I made at a 1kHz sampling rate, where every other sample is -.25/.25: http://people.xiph.org/~greg/1khz-sampled.wav (so a 500Hz tone, the highest you can represent with 1kHz sampling).

Feeding that file to a boring resampler (I used SSRC, but anything should give roughly the same result— a least when not quite so ridiculously close to nyquist, most will attenuate near-nyquist data extensively) and get this: http://people.xiph.org/~greg/1khz-sampled-to-48khz.wav

Here are the two signals plotted against each other:
http://people.xiph.org/~greg/1khz-to-48khz.png

As you can see— the 500Hz sinewave is reconstructed perfectly. (Of course, a 500Hz square wave would not be (you'd get a sinewave out) but this is because a 500Hz square wave contains energy far beyond the nyquist of 1kHz sampling).

Here is a spectrograph of the same signal http://people.xiph.org/~greg/1khz-to-48khz-spec.png showing that the tone is indeed pure (the faint background noise is the dither the resampler applies when requantizing its high precision intermediate format back to 16 bits).
> But you'd still have secondary data, with the original lost.

By that standard, the original is always lost unless you have a completely holographic recording. 192kHz doesn't help with that problem at all.
Disagree. In fact, were I to come up with a rule of thumb, I'd say the opposite is true.

Want to find bugs in Sun's Java 6 compiler for X64 Linux , use annotations (yeah, I found one in their V30 release last week). Want to find bugs in MS' C++ compiler, write your own templates (this was a few years ago, maybe it's better?). The best programmers push the limit of their tools because they know what's "supposed to happen".

Poor programmers hit something that doesn't work, and just try something else, cause, well they're just trying shit. I would go so far to say that poor programmers, in fact, are unable to find compiler, optimizer, OS, or hardware bugs because, by definition, they probably don't have a firm handle on what's "supposed to happen".
Yes, and anyone who has ever sat down infront of an LCD flatscreen watching their favorite movie on DVD/BD using gold-plated $200 HDMI cable instead of $4.99 Walmart HDMI cable see the extra sharpness immediately. This is why non-gold plated non-OFC HDMI cables are down to $4.99 a piece from their original $49.99 during introduction.
For those of you who are interested in just how much of a golden ear you truly are: download Harmon's "How to Listen" software for Windows or Mac OS X http://harmanhowtolisten.blogspot.com/ (scroll down).

Harmon requires its trained listeners to pass tests based on this software before participating in juries to evaluate Harmon products. It doesn't directly address the sample rate/bit depth issues discussed in the linked article, but it does address a lot of the issues brought up in the HN discussion, so you can have a chance to see how much those characteristics really matter.

You may be surprised.
I have also spent many hours spent in high-end recording and mastering environments, and it's my observation that most engineers suffer from confirmation bias just like everyone else on the planet.

I've caught engineers using L1-Ultramaximizer (or similar) to bounce a recording down to 16-bit/44.1khz as part of the mastering process, and they're always surprised when they're completely unable to hear the difference even in the most simple cover-the-screen-and-toggle-bypass test.
I agree. And publishing openly is precisely what this researcher is doing, which is why I submitted it to HN. His paper: http://www.lpi.usra.edu/meetings/nets2012/pdf/3051.pdf

Other researchers who, on the contrary, keep secrets drive me crazy (Rossi, Defkalion, etc) and give a bad reputation to LENR research.
Next Hacker News Melbourne, FL Meetup on Friday, March 9th
W3fools is nothing but a jab at w3schools, and most certainly not a place for a beginner to start learning css and html.
Mh, never mind. Right now they only support baseball, and football is not even on the list. (soccer for americans)
Yup. You can create n-products and do whatever you want with them.

*Nota bene: I work on ShopLocket.
It is totally ordered.

The transactor is a single point of failure.

However, since its only job is doing the transactions, the idea is it can be faster than a database server that does both the transactions and the queries.
...And the new Pro Tools 10 just added the ability to record in 32-bit floating point. http://www.avid.com/US/products/Pro-Tools-Software
yeah, it had some very well-thought-out features. dijkstra notwithstanding, i am glad it was my first language.
Totally second the Stripe suggestion - it is fantastic.
In normal listening conditions and for most people the difference between 16/44 and 24/192 is inaudible.

Given a 5 minute song, if I have the choice to download a 11MB file (320kpbs MP3) or a 330MB file (24/192) I would of course choose the 11MB file. The sound quality is perfectly acceptable and the file size much more convenient to manage (storage, backups, etc.).

In terms of the convenience of managing the file size and sound quality I think 320kbps MP3 is the best compromise.

Here's a file size comparision of a 5 minute stereo song:

MP3 128kbps > 5 MB

MP3 320kbps > 11 MB

Uncompressed 16/44 > 50 MB

Uncompressed 24/192 > 330 MB

When talking about sound quality there is a much more relevant issue: the amplitude compression (distortion) abuse used by mastering engineers and producers that totally destroys the dynamic and life of the sound. That is a real issue. When buying a song there should be two versions to choose from:

A) "Loud", dynamically destroyed / distorted version.

B) Normal, dynamic, non-distorted version.

Today only version A is available to buy.
Your guide was good. Number 4 "Team" caught my attention the most. A solid team is vital to any endeavor. So it can't be stressed enough who you choose to work with, needs to be self-motivated.
I'd disagree, at least among the people I know: they all have cheap HTIB systems and the single biggest, most cost-effective improvement you can make from there is to buy better speakers.

Then you can worry about your room.
If you want to do this style of JS development and get backwards compatibility for 2005-era browsers (AJAX and event differences, basically) and no other "utilities" that just rename DOM functions and helpfully put them under 10 layers of property access indirection, Peter Michaux's Fork JavaScript is highly recommended (mirror: https://github.com/vsedach/fork-0.1.1). That's the way I like to write JavaScript.
I've always thought the most expensive speaker cable sounds a lot better... to the wallet of the salesperson.
More people should try this.
Darpa Cheetah Sets Speed Record for Legged Robots
Interesting timing:

Yahoo, the Internet search engine turned news and multimedia portal, will unveil its first season of scripted comedy programming on Monday.

https://www.nytimes.com/2012/03/04/arts/television/yahoo-sta...
It takes 3-5 seconds for my rather powerful laptop to 'build' a twitter page after it has loaded (since it is doing AJAX etc), and this is warm. This is also on a rather fast internet connection, in the latest firefox and chrome. Compare this to Facebook - which has enough javascript to make it slow on my netbook - it loads almost instantaneously under the same circumstances, even when performing AJAX requests.
I can't speak for the MS SQL tools. I used one of them once? and it was extremely lame but I can't comment.

Compared to every other RDBMS GUI I've used:

It crashes very infrequently. It doesn't randomly slow down whenever I click on something. The settings page is relatively straightforward. There aren't fifteen different windows with different functions. The UI makes sense and is also very straightforward.
Yeah. I have a lightly used production stack that is the very beginnings of a service like this. I think there is a lot of potential value here, if you can strike the right pricing/feature balance. Also a ton of opportunity to add value (look at some of the Ideé APIs for ideas: http://ideeinc.com/ ). I'll be keeping on eye on this product & space in general.
Why I Want To Intern At Your Startup This Summer
A webapp development manifesto
Depends on the compiler. When I took my "hardware for CS students" class as an undergrad, our big project for the semester was to write a CPU simulator in c, and the campus labs had just rolled out the upgrade from gcc from 2.x to 3.x. I had a bug in my program that I just couldn't isolate, and after about eight hours of chasing it, I realized that the compiler had allocated space for an integer variable right in the middle of an already-allocated array, so the two variables were stomping on each other. I changed the name of the integer variable and my problems went away.

Apparently I wasn't the only one, because within a week all the labs were back on GCC 2.95.
No, even in that case, the room can still overpower the speaker. A $200 HTIB system in a properly treated room will sound a lot better than $28,000 Wilson Watt Puppies in a bathroom for example.
> the speakers will be the limiting factor
> in most sound systems

I disagree -- in most sound systems, the room is generally the most limiting factor.

Pardon the reductio ad absurdum, but would you prefer to listen to $1,000 speakers in a dry, padded listening room, or to $100,000 speakers in a tile bathroom? Obviously the room matters; I think most people underestimate by how much.
True. I still think point 2 stands though. If your idol or another artist you respect, asks to remix your song, you may be fine with that. But if every person that buys (or pirates) your song can remix it you might be less happy about it.

I write music and have considered releasing separate tracks so people can freely remix it but I prefer just having mixes that are controlled by me. Allowing another artist you know to remix your track still allows you some sort of control (you know their style so have some idea of how the remix will go). Giving up that control is a big step and, I think, an unnecessary one.
Bing Search Quality Insights: Whole Page Relevance
Some will argue that such a number doesn't exist (http://en.wikipedia.org/wiki/Interesting_number_paradox). Others say it is 11630 (http://www.nathanieljohnston.com/2009/06/11630-is-the-first-...)
I can't comment on much, as I'm not in the screen printing business. However, the design is very nice and professional.

There may be a bug-when I click on the link "Check them out" on the front page, nothing happens. Using Chrome on Windows.
I'm not a huge NIN fan, but Trent is truly awesome when it comes to digital music. You can add excellent mastering and dedicated surround mixes too..(rec: Social network soundtrack). Also a former oink'er.

The beatles multi-tracks are also available (although they were only recorded 4-track so not every instrument always has it's own track), and there has been a handful of artists who have released their samples of one song for remix competitions (Daft Punk, Royksopp, Booka Shade).
Regional nationalism is quite common. "O Flower of Scotland", "The South Shall Rise Again", "Euskadi Ta Askatasuna" ...
Windows 8 Consumer Preview (Beta) released
That is what the mozilla documentation suggests @ https://developer.mozilla.org/en/IndexedDB/Using_IndexedDB

"Obviously, browsers do not want to allow some advertising network or malicious website to pollute your computer, so browsers prompt the user the first time any given web app attempts to open an IndexedDB storage. The user can choose to allow or deny access. Also, IndexedDB is completely disabled in the privacy modes of browsers (Private Browsing mode for Firefox and Incognito mode for Chrome). The whole point of private browsing is to leave no footprints, so attempting to open a database fails while in this mode."

Testing it in chrome it looks like it is working fine, I should know better than to trust the docs :)
There seems to be some strange idea that analogue means 'infinite detail'. In this particular case, there's no significant difference between being limited by the original digital recording resolution and the grain size of a film recording.

"[...] provided the source is good" is begging the question; it's no different from saying "District 9 could be better if they hadn't recorded in 4k (or whatever the Red One was using) and downsampled it for my DVD" The nature of the source is irrelevant, barring the fact that film might provide a higher resolution, if film scanning technology increases, and you can afford to both capture on film, process and store your film properly (archiving film is rather difficult, I believe), and get the best quality digitisation possible.
I think this guidebook would be a great test case for gumroad (new payment platform for content). In case you are looking for an easy way for people to pay for the PDF...
Exactly! I could not have put it better myself!
I might sound/be stupid for asking, but what's the actual physical response from something at 22 kHz+? I have a hard time picking up a pure sine > 17 kHz. I doubt I'd get any aural response from anything at 22 kHz, so what's the deal?
If you're not listening to Hypercritical, then I probably don't have too many suggestions. [StackExchange](http://blog.stackoverflow.com/category/podcasts/) podcasts are nice, but sometimes insidebaseball-y.
$25 credit card-sized computer in action
interesting. thanks for insight. so both of those still fallback to a case of lacking willpower and political inertia

this area feels like one of those cases where if we could start with a blank slate, from scratch, and design it "right, from the start", this problem would go away. actually a lot of government and banking feels that way. much of it is an echo/zombie from an era without computers, without the Internet, without telecomm, etc. they just shamble on and very slowly and incrementally incorporate the state-of-the-art, usually only in little pockets and niches.
We built this same APP at Startup Weekend Boston two weeks ago, but didn't release it because we still wanted to finalize some features. Nice to know we have copycats.

Also: The data provided by Bing's API was minimal, this app won't be accurate. There is also the issue of how do you know where I am leaving from in the future?
Just one piece of feedback on http://shoplocket.com/ - the thing I went looking for straight away was the demo of the actual widget, with an actual product in it (even if it wasn't something I could actually check out with) - I couldn't find a demo linked from the homepage, which I think is a missed opportunity.
Yeah it just doesnt work like that with most startups. But you can find those people eventually. Thy have been in the business for a bit longer in my experience. Look for companies that have grown self funded for five years or so not new startups. They have worked through the people give us new potential thing more.
I agree.

Especially consider for something like Gmail the incumbent for comparison is MS Outlook. (grab your coffee cup and head for the kitchen...)

2MB ain't what it use to be either.. Folks if you want lightweight sites go mobile:
https://mobile.twitter.com/
ref changes are tracked in the reflog, but the "pusher" (as opposed to author and committer) isn't.
> Agree one-hundred percent about the room

With a username like yours, I'm not surprised. :-)

> although the prescription isn't always as
> simple as "get a thicker rug" etc

A prescription is only as good as the likelihood that it will be heeded by the patient. A rug is an easy win; acoustic ceiling tiles and bass traps are a bit harder...
Here is a Wikipedia article on the subject: http://en.wikipedia.org/wiki/Sound_from_ultrasound

Basically, if you produce two ultrasonic frequencies, they will create an interference pattern at a much lower frequency than either of the individual frequencies. Modulate a signal on the difference between two signals, and you can create a directional speaker, since ultrasonic sounds tend to be highly directional (so long as the diameter of the transducer is greater than 1/2 wavelength, which is almost guaranteed with ultrasonic signals). This is how the "sound cannons" that are being deployed for crowd control work.
It's not like it has been a secret: http://en.wikipedia.org/wiki/YYZ_%28instrumental%29
I'm surprised that people who leave Iran go back to visit, even for family. It just doesn't seem safe. Then again, I am writing this from an incredibly outside perspective informed only by horror stories of people getting arrested.
Sure, but that's a rather contrived example-- most people have a fairly normal room, and the average joe would be best served by getting a good pair of speakers, and a reasonable amplifier and DAC, before worrying seriously about room acoustics.