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Let's say you have image assets in two sizes - 1x and 2x. If you want to show an image at 1.5x, you don't upscale from 1x, you downscale from 2x so that you have a crisper image.

If you're looking for a practical application of this, watch a YouTube video fullscreen that has 720p and 1080p options on a display that's 1680x1050 or anything in between the two video sizes. The 1080p version is better looking because it's scaled down, not up.

This is the concept behind running a 3820x2400 framebuffer and downscaling it to 2880x1800 for display - you're getting a crisper image because of the use of 2x drawing by the system for text and standard UI elements. Of course, third-party bitmaps aren't going to benefit from this until they're updated, but Apple developers have been through this before with retina displays on iOS devices.
Ask HN: Has anyone used Airtime (the new video chat platform)?
A very important missing feature is external keyboard event support. I don't want to go too far into the details, just let me tell you this: ESC, Function Keys,CTRL, ALT are all dead.

I submitted a feature request among other developers like the month iPad came out. So far, no any sign of adding it. Yet we continue to see Apple adding this message that reminder.
MSRA intern here. I'm a 31 PhD student with six years of work experience in two startups and a middle-sized software company. Microsoft (Research) is a great place to work simply because there's lots of really, really smart people here.

And for the record, I mainly use Linux on my desktop and nobody cares :)
Have a BSOD screenshot ready to pop up in the background. And alt+tab it.
Apple's big enemy in smartphone wars: delay
, or, "Who disrupts the disruptors?"
Apple bought a mobile wallet patent from two Finnish inventors
"Society globally has to collectively decide that we need to drastically lower our population very quickly."

Right, and how does Arne Mooers propose we do this? Thermonuclear war maybe? That would be too damaging. Sterilize everyone? Not even China does that. Maybe ask billions of people to escort themselves off the face of the Earth? Make some Solyent Green? Global pandemic?

Maybe more people would take them seriously (and really take them seriously, not just run around scared) if they gave us more choices than "maybe die" and "definitely die".
Why I chose Apple's Aperture over Adobe's Lightroom
REST: From GET to HATEOAS - How to create really RESTful APIs
Unfortunately it's not hard to manipulate this one. AR generates a couple queries when you do a single invocation - the first is a meta data query to get info about the table you're talking to. The second (or third, etc) are the actual hard queries.

It's the first query, the metadata one, that applies the passed arguments in a raw form directly to the query. The exploit takes place inside of a 'show' operation. It's totally unprotected and lets you run pretty much any select you're interested in.

It also goes beyond prepared statements - the metadata query in question is totally separate from the one specified by any parameterized query you'd pass using something like ('id = ?', params[:id]). So essentially, as a developer, you can't do anything better. This is kind of on the framework side alone :/
Simple use... two of these by the door would make my life easier.

Going out: turn off WiFi, turn on GPS, Bluetooth, turn up the ringer volume and screen brightness, etc.

Coming in: do the reverse.

Of course I can make it even easier with On{X} and trigger the same on detection of my home WiFi network (other than turning off WiFi of course)
Divx browser plugin allows AVI playback using HTML5 video tag API
That is an awesome response from a Show HN! Gives me some motivation to finish my project and show it to the world. Also, I just requested an invite to the your service (didn't catch the actual HN post earlier, but I saw this and was intrigued with your project).

Thanks for a good post!!
So far a nice discussion... and it goes on and on and on... I'll be reading more later
Why iOS 6 just stomped out Android, again
Ask HN: Do companies donate to open source projects?
Lots of companies contribute patches or release open source code of their own, but is anyone giving them money? Do any companies have policies of donating to open source projects used in production code?
Are you counting the totally unprofitable development of NeXTStep as a success or failure (considering that NeXT would very likely have died had Apple not bought them)?

(Those same APIs and objective paradigms became the basis for the entire iOS app ecosystem, via MacOS...)
Well, you did come across as a dick. Go read the whole article this time, and look at the picture of their kid at the end.

I think your post was longer than the article. That makes you a dick and an imbecile.
It appears to work pretty well: https://bu.mp/zwTsWE
That Was Fast: iOS 6 Developer Beta Has Already Been Jailbroken
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I'd like to see the first text box on a form be automatically selected when the page loads.
I'm probably not the worlds biggest Apple fan, but:

A very important missing feature is external keyboard event support

Umm.. no it isn't. It's pretty clear iOS is designed for devices without a physical keyboard, and if that is important to you then you will always be working on something Apple doesn't think is important. Their priority there is quite clear and I don't think it is reasonable to blame them for that.

(Written by someone who likes a physical keyboard and is very happy with my Asus Transformer)
Blaming the patent mess on the Chinese is misguided. If a company felt harmed by a cheap version (that is branded clearly) then that might be a good time to reevaluate there business strategy. After that, go to the ITC for an injunction to protect their lack of market success.
MIT Researchers Produce Micro-Light that Outputs More Power Than Applied
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Well every team is different, so I shouldn't try to say I know the right thing for your team. What you're talking about though is farming out your branch builds/tests/deploys to jenkins, which has nothing to do with CI, but still sounds like your team finds it useful. Carry on if that's the case. While I wouldn't personally solve the problem that way, I'm wrong to suggest that jenkins should only be used for CI.
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Mine certainly has. We try to do at least a little something to the projects our business uses most. Tor, openvpn, openwrt etc in our case.
As a relative newcomer to the software industry (~2 years), I hope the grumpiness caused by shifting requirements decreases over time. That after you gather enough experience, you are able to predict more and more accurately what the requirements _should_ describe and act accordingly by preparing some hooks, dangling bits and all other kinds of flexibility so that you can leverage it quickly once the change kicks in.

A more experienced friend of mine (10+ years) says that it is indeed more or less possible, but to do so consistently one has to be quite exceptional engineer - and psychologist. Well, if he's right, then at least I have something to strive for :)
I'm having trouble deciding whether or not this is sensationalist journalism or the truth.

looks up denial in the dictionary
I find strawmen highly curious.

I re-read the article to see where it claims that those kids will grown into super-human geniuses that would make Einstein feel small.

It turns out: nowhere. You've debunked a "faulty reasoning" that you yourself fabricated.
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Interesting to see this coming from such a staunchly conservative university as SFU.
Why developers should learn how to sell
How would they implement this?
I'm absolutely fascinated by the difference in responses I see on HN versus talking to my friends (liberal arts). They were concerned with the future implications for cultural integrity as well as how it would effect labor forces and capitalism as a whole. Any thoughts?

I, for one, think this technology is awesome and think it could follow the progression that the train system went through in the US (transcontinental railroad, expanding, webbing out, lightrail, subways, trams, metros, etc) and see this as a possible next step in the evolution of transportation.
Feeling was implied I just gave it a cynical twist, and I quote:

Ritik Malhotra (19, San Jose, CA) Ritik began programming at age 8; started a popular web forum at the age of 12 that grew to over 32,000 members; and ran a web hosting and software consultancy business at the age of 13, garnering over a 600x return on his initial investment.

I wonder what he started with - $10?

Taylor Wilson (18, Texarkana, AR) became the youngest person in history to create nuclear fusion. Since then, he has produced the lowest-cost and lowest-dose active interrogation system for the detection of enriched uranium ever developed. As a Thiel Fellow, Taylor will focus on both counter-terrorism and the production of medical isotopes for use in the diagnosis and treatment of cancer.

I ... no ... I can't even address this.

Omar Rizwan (18, East Hanover, NJ) wants to change the world through the control and analysis of information.

Nothing big there. Just changing the world. Don't mind me.

Jimmy Koppel (20, St. Louis, MO) has a passion for software engineering – and a plan to make it much more efficient. Modifying software today often involves hundreds of thousands of small, similar adjustments that require a great deal of time and money. James will fix that problem by developing new tools to automate the process.

It's almost like software engineering is real work.

But hey, this kid is going to "automate the process".

Yoonseo Kang (18, Mississauga, ON, Canada) recognizes that society’s potential for innovation and abundance can only be achieved if knowledge and the factors of production are accessible for everyone.

Yeah, what's the deal with all these governments.

Who needs clean water, affordable food, stable electricity load, good laws, sewerage, and a safety net. People just need open hardware, and crowd sourced community blah blah blah - that'll solve all our problems. Right? RIGHT!

Noor Siddiqui (17, Clifton, VA) is inspired to galvanize people for the good of others. As a Thiel Fellow, she will work to give students across the globe access to upward mobility – and industries access to an untapped work force – with the goal of mobilizing one billion people in the next decade.

That's like MBA speak meets HR meets a Dilbert comic.

You can't make this stuff up. It's insane.

Clearly humble there. I mean, of course, no claims, apart from the MOBILISING ONE BILLION PEOPLE. But hey, that's just me little old me. What would I know?

revolutionize our country’s antiquated system using technology. As a Thiel Fellow, he will focus on Flashcards

There's a Youtube hit in that sentence somewhere.

And here it is: http://www.youtube.com/watch?v=LMmdl4VltD4.

Ilya Vakhutinsky (20, Fair Lawn, NJ) wants to revolutionize the way the technology and health care communities work together.

Indeed, because a poor person's biggest problem with health care is how he will access his patient data. Money? What's that?

When a person's age is next to their name, preceding all actual data, you just know some real _A class bullshit_ is coming your way. And hey, it holds true!

Removed Einstein reference just to make you happy :D.
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Ask HN: How to get list of HN users and items they upvoted/created?
I want to conduct a Machine Learning experiment on Hacker News and I need these data for that purpose :

1. List of all registered users on HN

2. items upvoted by a user - post/comments

3. Items created by a user - post/comments

Is it possible to get these information through HNSearch API? If not, any other way to access this information?
You misunderstand patents. Despite what is reported every so often, you cannot patent abstract concepts: only specific ways to execute upon those concepts. The title of a patent is irrelevant, but it is the title that gets the press.

Patents do not disallow you to think of certain things and they do not disallow you to share those thoughts. They only disallow you to implement a specific solution to a specific problem, for a specific period of time. Patents get struck down for being too broad.

If having to be struck down is the problem, then look at the justice system, not the patent system.
Can you perve on hot chicks and find bugs at the same time?
I answered the question correctly, which I'm sure the majority here probably did too. When someone asks a simple mathematical question, I always seem to give it more thought since I always know it must be a dodgy question. 4 years ago, I'd probably of answered the question incorrectly. But the baseball question is an obvious mindfuck.
Sounds good - I'll hit you up on the GAL, although I'm based out of LA :p
Well call me a dick too then. I can totally sympathize with the parents and how they feel when something like this happens to your family but to be honest, if PRC has a rightfull claim to a patent infringement it's their right to protect their intellectual property, and it's not that there aren't any other apps that might facilitate maya to express herself. Maybe not in the exact same way as SfY does but there are other excellent options, even on iOS. Even pen and paper would do if they were taught. I've even seen kids run about with a bunch of indexcards to communicate in a similar way.

I personally feel like they are more afraid of change (which is a legitimate fear) than they are fearing for their daughter to become unable to express herself, which isn't legitimate in my opinion. There is a thick layer of drama over it that some of us fail to see through.
the time to get uncomfortable with apple's practices was when they decided that if i developed an app, and you bought an ipad, the only way for me to get my app onto your ipad was through an app store that they controlled, and then only if they gave us permission. anything after that is just scum floating on the underlying pool of sewage.
> Although I don't necessarily think it will be because of war, I can see a potential future where people/persons decide democracy is a less effective system because it's holding back the decision making process

That's something Darth Vader could have said.

Oh, wait, he did :-)
Wired Opinion: Google Is Evil
Apple Admits 'New' Mac Pro Isn't All That New
It looks nice, I like the simplicity. One nit pick: I'm not too fond of the flash notices. Fading out and then suddenly being removed from the document, causing all content below it to jump up, is slightly jarring IMHO.
Here's Apple's Siri Speaking Chinese [Screenshots & Video]
> Pharmaceutical companies make minimal changes and get patent extensions. These changes can include the color or flavor of medicine.

So? Other companies are free to make the unchanged version after the original patent expires.

If some companies are unwilling to make drugs unless there's some sort of monopoly, what does that tell you about what they'll do if there's no way to get a monopoly?
Well, there goes another shock headline.

The human species very much behaves like an individual in that it will always take a burnt finger to stop touching the hot plate.

What that tells us is that we're indeed going to break the ecosystem/climate at some point.

What history tells us is that we're going to fix it much faster than we broke it

We have broken hunting/gathering and we had the fix before it became critical. (agriculture)
We have broken fossile fuels and we had the fix before it became critical. (nuclear,elec,batteries,fuel cells)
We have broken nuclear fission energy and we had the fix before it became critical. (fusion, hydro, geotherm)
We may have almost broken the climate and we will fix it before it becomes critical.

(There is no problem so far so I can't guess the fix, but we already have the capability to design any animal or plant and mass produce it to solve any ecosystem riddle)
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Thank you.

I read the entire article (and its comments). Twice. And then I read through nearly a dozen other pages on the blog to learn more about Maya, her condition, and everything the parents have tried in communicating with their daughter--because the author's statements stood out to me and I wanted to see if they'd tried other things, or if there was something about her condition that made ASL or other methods non-starters.

Look at the picture? Cos that means exactly what? Nothing. The child's physical appearance has no bearing on either the content and meaning of the article or my comments.
This article would be a lot more credible if it mentioned timescales. Do we have 1 year to make a change or 100? At current rates of progress, when do we reach this tipping point?

Without at least that number, it's just a useless alarmist rant.
Its things like this that will hopefully continue the push of automation in general society. We as hackers have long seen the power in automation, but the general public sees a computer as something that is powerful, but adds complexity to their life. Apple does a great job at fighting this image that technology == complexity, and that's part of why they are successful, IMHO. I just can't wait until the real wave of automation hits the general market with force.
Well, shucks, wuts a load balancer? Sounds like some kinda doofus trying to keep a pile of shit on their head from tipping over.

Jargon is jargon, and in my part of the world, you're what we call a dumb-ass. Or is that too retarded for you? Nah, I expect there ain't a name too retarded for you.
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> "Set the threshold to 12PM if the 11:05 flight is OK with you"

But the 11:55am flight is not OK. In any case, this is breaking what users have to do now - they have to purposely break the UI to get the results they need. They have to lie to the system to coerce out the answers they actually want, as opposed to the system being smart about it.

When I say "leave at 11am", I mean "the closer to 11 the better", not "place a hard limit".

Not to mention, Kayak's results display is terrible - the information is densely packed and not in an easily parseable way, making flight comparisons a gigantic chore. If I want to compare my departure times, it stuffs the return trip (which frankly, has no business being there) times right underneath.

It also insists on showing raw time values, without any visual indication of longer flights vs. shorter flights, nor visual indication that differentiates departure/landing times. This is only a couple notches above comparing UNIX timestamps. Manually, consciously subtracting time values is not something people are good at, and certainly humans perform poorly at it when forced to do it many times in short order.

It is, in short, needlessly precise. It doesn't matter if one flight leaves at 6:05am and the other leaves at 6:08am. I don't need that kind of precision in my decision-making process. Nor do I need to know if one flight is 8 minutes longer than the other. It's noise, and it's poor UX.

Nowadays I go out of my way to avoid Kayak - or really anyone who fails to separate the two legs of a trip. It's ugly, it's information overload, and it's downright maddening.
£1,785.25 Is below to what is considered a minimum vague here. I wonder if you are happy with this and what your cost of living is. But I think UK (London especially) is also very expensive. Personally I think you need to charge (way) more.
No, you misunderstand ethics. There is and can be no ethical principle that bans you from creating a physical object that happens to be similar to an object someone else created, unless you had explicitly consented to being bound to an agreement where you would refrain from doing so.

And you misunderstand patents as well, but that's not the fundamental issue. The fundamental issue is that you cannot make an ethical case for patents, on the contrary, they are a gross usurpation of a human being's right to create and trade. This is obvious to anyone who ignores the propaganda they were taught in high school.
Experience is the best guide.

- Be honest, listen and be dependable.

- Recommendations should be supportable and well-researched, otherwise they lose credibility.

- Don't just make changes for the sake of churn because it costs the client. Every suggestion that doesn't resonate well costs relationship currency.

Finally, don't learn on someone else's dime without making it clear what you can and can't do right now. It is clearly dishonest to say you're an expert of something if you are not.
> The nice thing about a transatlantic tunnel is that crustecaeans can be bought off cheaply

The various environmental organizations aren't going to be bought off cheaply.
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Confirmed: Waze And Others Contributing To Apple’s iOS 6 Maps
They don't have any obligation to do so, but in most case you'll probably want them to: you built an application on your own, over 6 months of your life, and a guy cracked, replicated and uploaded it. Surely you'll want his app thrown out even without having to go through court won't you?
This looks great. I really want to get this working and then after a week, "hey boss, support seems better now huh?"... :-)
I wonder what kind of competition. Something like topcoder?
> Couldn't you use electricity to separate hydrogen and oxygen from water, and then "burn" that in the rockets to produce water again?

How does the energy/pound and energy/CC compare to decent rocket fuel?
This has already been discussed extensively here (see: http://news.ycombinator.com/item?id=4097116)

For the record, my vote is that this is pseudoscience. No theory, model, or testable predictions are presented. It is a non-falsifiable idea that is couched in such generic and vague terms that it could mean just about anything.
Even if it is not universally important, it is very good for projects like:

http://www.pcworld.com/article/229284/the_250_case_that_turn...

As a platform provider, why bother work on an app that thousands of developers can do better, and not work on a missing feature that can enable further innovation? We are not talking about a Siri level of feature, we are talking of a trivial platform feature that basically a decent engineer in Apple should be able to do it in a week, testing included.