skysight-inc/HackerNews huggingface dataset:
Providing energy for the aircraft is a problem as well. Satellites just can keep going on, but a hydrazine fueled or battery powered plane would have a mission length counted in hours. With 1% air density and 40% gravity, I get about a factor of six speed requirement compared to earth. Have to stay below the 240 m/s speed of sound.

If you had a battery plane with solar panels that could land to gather energy, then it could fly again, but the landing and takeoff might be extremely hazardous, with rocks and very high speeds.

Edit:
Here's a good pdf presenting calculations about these issues, it also looks at pixel smear because of the high speed:
http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.78....
Listen to meteor shower on the radio (or see it on the web)
Yes, I also felt very strongly about that. In my own life, I find kindness and compassion to be an intrinsic good; I am not kind because I am using game theory to attempt to maximize the returned kindness, I am kind because I get more pleasure out of being kind than the alternative. Even if I never interact with the person again, I feel happier after being kind to someone than if I am a jerk.

I do worry for people who feel like the author of this article. I can't imagine how miserable it must be to only feel joy when other people are kind to you, and not the other way around. I guess I am lucky in that way, that I feel so much happiness when I share my kindness with someone else, even more so than when someone is kind to me; I am actually in control of my own kindness, so I am therefore also in control of my own happiness.
No, they bypassed it because that is the print-at-home boarding pass design...
I really like this for not defaulting to the standard, lazy, fallacy-of-self-exclusion explanation of "most people are dumb."

The same effect seems to occur with large social movements. I've noted for many years that once anything becomes a "movement," it becomes shallow, trendy, and dishonest... even if the original seed of the movement had a good point in the beginning. Once it becomes big there is no longer any incentive for people not to abuse the movement as a marketing gimmick or a source of political power.
Mixpanel (YC S09) is hiring low-level systems engineers
Hi HN,

I'm looking for excellent systems engineers to join the team at Mixpanel. We’re a 50 person team (11 eng) in San Francisco, and we’ve built the most flexible analytics platform in the world.

The Systems team (currently 3) is primarily focused on low-level systems programming, scaling, and infrastructure.

Responsibilities of this role include:

* Working on our custom datastore (written from the ground up in C)
* Scaling the data processing pipeline (currently handling > 50K requests per second)
* Building notification delivery infrastructure (currently sending > 100M emails & push notifications per month)
* General improvements to performance, reliability, and security

If I was looking for a job, the first question I’d ask is “what is your engineering culture like?”. So here’s what we care about:

* We do very thorough, line-by-line code reviews using GitHub pull requests. This keeps our code quality high and helps us learn.
* We try to have two people work together on every project (collaborating, not pairing). It's more fun and it results in better code.
* We practice rapid iteration. If it's better than live, we ship. We also build things so they can go live (whitelisted) long before launch day.
* We write tests for things that are mission-critical, prone to failure, or cause paranoia. Think billing and datastore code, not Django views.
* We care about learning. Right now we're reading through Advanced Programming in the Unix Environment.
* We currently have 8 vim users, 2 IntelliJ, and 1 emacs holdout.

We’re looking for candidates with:

* at least 3 years of experience in industry
* mastery of at least one programming language
* US work authorization
* passion - you have built (and are dying to show us) something you're proud of, outside of work/school
* strong problem solving ability
* attention to detail
* you code as fluently as you speak

Why join Mixpanel?

* We are profitable, with millions in monthly revenue and over 2,200 paying customers.
* Mixpanel is still a small company, but we are poised for great growth.
* Our product is used by companies like amazon.com, Dropbox, Intuit, OpenTable, and Salesforce.
* We've raised money from top-tier investors: Andreessen Horowitz, Sequoia, and Y Combinator.
* There are a lot of cool people here. You will like the people you work with.

If this sounds interesting, please get in touch. I’d love to hear about the systems you’ve built & scaling problems you’ve solved.

Tim Trefren
tim@mixpanel.com

For more info, check out http://mixpanel.com/jobs
Empréstimo Com Nome Sujo
limpe seu nome online e pela internet, para seu empréstimo com nome sujo sem empresas que limpam o nome, para conseguir o seu empréstimo pessoal mesmo com nome sujo para limpar o meu nome no serasa e spc não precisa financiar ou fazer um financiamento estando com seu nome sujo ou emprestimos para quem tem nome faça uma analise de crédito pessoal para limpar seu nome no sp ou em todo o Brasil, quer comprar um carro ou quitar suas dividas com dinheiro emprestado
Guidelines on how to conform to the rules of the Matrix, otherwise you may be expelled from the system into obscurity of Zion.
I'm shocked I tell you! Shocked!

Sarcasm aside, honestly I would be more shocked if they hadn't behaved this way.

I'm happy to continue to not buy anything from Amazon.
Especially when there's folks like NewEgg around who are quite the opposite.
Why is the password limited to 16 characters long? I don't understand this limitation on any of the sites.
That's a very interesting concept!

What if it were geo-local? When you post an article or text post everyone sees it but you only see comments from people within 100km of your location.
2275 MorphOS licences sold
I'm a little surprised that you've rattled off just about every single school in NC except NC State. Any particular reason?
Page Down key doesn't scroll.
It's a print-at-home boarding pass, so no restrictions. I'm sure the one they produce at the airport still sucks.
Fast Cordova applications
I think this article is meant to be addressing communities at the large scale, which really means humans at the large scale. And the tough part about humans at the large scale is that basic economics kicks in: humans respond to incentives.

Sure it might be tasteless or sad to observe, and yes there are people that defy this. It's still going to happen though.

Only in dealing with the realities of this is there actually a shot at mitigating it.
I recommend Dokku (https://github.com/progrium/dokku) if you want something similar to Heroku. The nice thing about Dokku is that it's simple without locking you in to any particular (proprietary) cloud provider stack.
It may not be a process & quality question, but simply staffing with very highly experienced and smart people. Some analyze that the Windows kernel has that problem[1].

[1] http://blog.zorinaq.com/?e=74
> This is the statement of an unimaginative individual with no creative juices. I wouldn't employ you to sweep the floors.

Really? You need an imaginative, creative janitor?

I get that you disagree, but I feel like you've crossed the line into insult here.
Mocking Windows 8 like that is like shooting fish in a barrel, it's easy and satisfying but doesn't really move forward the discourse in a meaningful way.
The problem is that in these large tech companies, the ability to "deliver" is not scarce. Almost everyone is good and the people on bad projects are hideously underemployed, so the rate of "delivering" is 98%. To get a good project, you need a track record of delivering on good projects. Otherwise, you just proved that you're a good grunt. That doesn't buy you anything.

Delivering on a bad project just gets you typecast, and that's in the good case where you do well. Then there are the bad projects that are bad (and might not be delivered) because they're impossible or pack the bad kind of challenge (i.e. hideous legacy code, which won't get the same respect as building a new system).

The luck of the first project determines everything in the types of companies that we're talking about. And a lot of it is luck: sometimes, as you've noted, people from less prestigious schools land well early on and kill it. However, pedigree is a variable that people (at least, in theory) have some control over. For example, if I wanted to go back and get a PhD, I'm sure I could, and I could probably get that pedigree. (PhD admissions are actually competitive, but I'm certainly smarter than 95+% of those getting into Harvard/Stanford MBA school.) But do I want to deal with an archaic, slow application process and pay 5 years of opportunity cost, given that I'd be 32 at the earliest point that I could start? Probably not, and I shouldn't be penalized for it.
Hmmm... I'm sure most people are like me and have their own scaffold set up, and don't rebuild everything from scratch. For every project that I write, I do...

1. git clone https://github.com/WINTR/grunt-frontend-scaffold

2. npm install; and then

3. grunt dev

...which watches everything on localhost:3000, including my unit tests and source code, and reloads on change. Dead simple, fast and consistent stuff and everything I could possibly need set up in less than 1 minute, every time.

Most teams, I imagine, work in a similar way.

Not to mention, if I wanted to pass over the project to another developer, I would just have to tell him to clone the repo and hit `npm install`.
Under the heading "Internet Services"
"corrective measures employed by Apple" what were the measures and what were they correcting? And how did the Justice Department get it wrong. Apple colluded with the publishers to set the price, and forced Amazon to sell for the same price. With mainly the people being screwed (well in some cases the publishers actually lost money too)
Unfortunately the corrective measures taken SINCE the ruling having really made much of a change.
i'm sure that the stock Apple support answer would be to backup, reformat and restore.

This would probably have fixed his problem since the backtrace he finally Obtained fingered the file system, which is probably corrupt. (not that this excuses the panic!)

This is further evidenced by his "helpdesk" being unable to repair his computer by physically swapping drives.
Rust for C++ programmers – part 7: data types
This one hurts my head.

They have a patent on moving the mouse cursor towards the address bar?!.
The top-5 cutoff really throws it off. For the non-tech roles that are a lot less selective, pedigree isn't that important and geography will dominate. Where the data is actually interesting is in high-level roles where the competitive frame (for companies and for people) is national.
I used that trick to get a cheap rear channel from my thrift store stereo back in my high school days.
Apologists are only bad if they're MS apologists apparently.

http://9to5mac.com/2011/10/21/jobs-original-vision-for-the-i...
I use a mix of Heroku, Parse and Hetzner. Used to be on Joyent.
Well, when you play in the big leagues you need to bring your A game. They aren't doing that.

Most of the negative comments in the article can be distilled into a single phrase: they don't use their own product. Otherwise, for instance, the button that dumps you back to the desktop wouldn't work the way it does, be placed where it is, or be so difficult to disable. (You could say much the same of Metro as a whole, but that's not germane here.)

Failure to eat your own dog food is a mortal sin in this business.
Yes, this is a good theory, and consistent with the decoded stack trace we have. Although, consider that three other coworkers are suffering the same panics after upgrading to 10.9.3. Have we all got the same corruption? I suppose that could be possible, if the corruption was caused by the same bug.
It's a wonderful story, Jacques! My favorite part (spoiler alert) is how you found your future wife by the side of a tunnel. Wow!
Which ones? I'm with iiNet and was wondering if they offered it yet but couldn't see anything about it online.
I think they took "mobile first" to the extreme, and disregarded desktop. I imagine that giant calendar is pretty cool on an iPad. It's not really responsive design if you optimize only for devices and not for desktop as well.
Agreed. I went to a decent but. It noteworthy state school (and the list of things it is known for does not include CS). But I've worked at more than one of the companies on that infographic, and have had a nice career so far. I don't feel that my lack of a brand name school has necessarily held me back (though I'd also agree that if I'd have known the career path I was going to take, and if I'd have been able to get into a top tier school, I would have).
Think Computer Foundation Sues U.S. Courts over PACER Fees
If having a Linux-like layer is what it takes to gain more traction, then so be it.

The world gains very little from having a great OS nobody knows about.

With time, the Hurd-ish ways should prevail where it makes sense.
I've been very frustrated by this as well. I tried changing a booking with Virgin Australia earlier today and got a popup message: "Important information: an unknown error occurred. Try again."
What Going Through Two Incubators Has Taught Me
actually the one they print from the airport is small and pocket-sized as well. at least the ones i get from SFO, anyways.
Users folder being hidden with iTunes 11.2 installed and Find My Mac enabled
Yes, that's what I was trying to get across. Could probably word it better but it's $150 per month, per account you extend your BizSpark account/benefits to.

So if person A signs up for BizSpark, then can then invite x amount of people to their companies BizSpark account and the $150/month and MSDN etc. benefits are also given to those other people. So Person A, B, C, D, etc. will each have their own Bizspark/outlook/azure account and each gets $150 a month in credits, and each has their own ultimate msdn subscription for 3 years.
it has fans
Yes, of course the publishers wouldn't want authors to see the details of their Amazon deals.
XAd Package Problem
The main issue is that selective-delay in order fulfillment is the essence of what comcast and the cable companies want to do (and the opposite of Net Neutrality). Amazon is one of the comanies that supports the Net Neutrality--because if comcast did this to Amazon make no mistake they would be fucked. It would be much better (for everyone) if AMZN stuck by its principles, and did not just revert to being a bully (when they think they are in-vulnerable). There are plenty of other ways for them to negotiate and exert leverage with their business partners.
I'm curious why this isn't automatically destructured:

struct IntPoint (int, int);

fn foo(x: IntPoint) {
let IntPoint(a, b) = x; // Note that we need the name of the tuple
// struct to destructure.
Check out Ninefold: www.ninefold.com
Pedigree is industry-specific. Bankers think of Stanford as a mediocre party school. (I'm not saying it is, but admitting Duplan and Speigel didn't help their case.) The Valley thinks of Yalies and Princetonians in similarly negative terms: third-rate artsy goofs. (Again, I'm not saying that it's an accurate perception.) Good-ol'-boy blue bloods (who still populate F500 boardrooms and attend Davos, but aren't relevant to any industry we care about) hold mediocre-but-rich northeastern schools in high regard, but don't think much of MIT (or, more accurately, they despise it).

School snobbery isn't rational and there certainly isn't a linear ordering (it being the parochial prejudice of pseudointellectuals too dumb to actually judge people as individuals). But the Yale and Princeton students (disliked by the Valley) can easily find good jobs outside the Valley, and do.

Usually, however, they go into something like management consulting, which means they come in a bit later and clean up the messes resulting from badly-architected California companies and a decade or so of man-child management.
So it is better for customers when Amazon accepts whatever prices the publisher dictates and does not use its customer base to get better prices for its customers?

This line of argumentation wasn't exactly seen through here. The fear was that Amazon, having crushed any online shopping competition, would increase prices on their customers. Nobody loses sleep if they devour some publishers margin to decrease prices.
At 25fps and 48Khz you rather neatly have 1920 samples per frame, which is coincidentally the width of an HD picture. At least I think it's a kind of a coincidence... I believe the number 1920 was derived from the 720 horizontal pixels of Rec. 709, which doubled give a 1440 pixel 4:3 picture and hence a 1920 pixel 16:9 picture.

The 48Khz rate used by everything apart from CDs also came from video standards according to http://www.tvtechnology.com/opinions/0087/digital-audio-samp...

Here's some more about the number-theory used in digital video, from 1990 during the standardisation of HD: http://www.poynton.com/papers/SMPTE_90_Magic_Numbers.html
Well, I did mention what I was interested in: the future.

Viewed in that light, if you take the view that many (perhaps a majority) of HN types do of the stifling effect of patents on industries as malleable as (software/maker/diy), even if they may be acceptable in more staid industries, then a witch-hunt about companies making land-grabs in one of these vulnerable and very important areas may well be worthwhile and beneficial to mankind.

And it's not impossible that it could be beneficial ... and simultaneously classless, and on shaky legal ground. (Although note other comments citing better evidence from April 20th, 2012).

I do think there's something to be said for calling out "this is crazy, we all know the community has worked on X, it would be an obscenity if the desktop manufacturing industry, of all things, got stifled by patents, let's find the prior art and shame the land-grabbers while we're at it." Which is what the original poster is doing, obviously as a very interested party.

I think that's a pretty coherent, and really strong, point of view. I mean, it's desktop manufacturing, dude!
And the seller rating. I think a big selling point for Amazon is that all sellers are grouped by product and it becomes very easy to choose the best one. I'm never going to want to sort through 20 listings of the same product and I just don't see how eBay can overcome that fundamental problem. That, and as a seller I hate getting taxed twice for one sale.
SVG + Matrix3D hybrid animations
At least you know the adapter is working if it crashes your computer. I am lucky to get the adapter to work properly and when it does, plugging in my Shimian crashes my MBP.
Not exactly a dupe, but covered by https://news.ycombinator.com/item?id=7789753.
The practice of not giving Amazon even more money.
I forked and fixed the ActiveModel::Serializer and presenter examples to us Oj with MultiJson. I was unable to get rabl to work with the Oj engine for some reason. I didn't feel like spending any extra time to track it down. Anyway, from the benchmark, I was seeing that the Oj json serializer was approximately 3-10x faster than the normal to_json method.

https://github.com/mrinterweb/json_serialization_benchmark
One problem with Heroku's European region is that it's not Safe Harbor compliant. This means it's not possible to use them and still comply with the data protection laws in some (most?) European countries.

When they announced the European region a year ago they said "Safe Harbor Compliance is Coming Soon" [1], but there has been no news about it since (as far as I know, at least).

[1] https://blog.heroku.com/archives/2013/4/24/europe-region
Politics or technology – which will save the world?
Why does GitHub let me commit as other people?
Gay social network Moovz pulls in $1.4 million to help it chat up more new users
Yeah Surface is to Windows as Nexus is to Android.

MS accept (now) that its going to be a niche product but are OK with that because it leaves space for the OEMs
Mu4e: an e-mail client for emacs
I'm seeing a lot of good reports for people with MBAs, and a lot of bad reports for people with MBPs. I think I can tell which ones the Apple devs use themselves.
ARES was only expected to fly about an hour, which does seem pretty pointless to me. A rocket propelled Mars plane is hampered by its need to carry oxidizer as well as fuel. But it seems like you still ought to be able to get multiple hours of flight out of it -- the Rutan Voyager didn't need to carry oxygen, but on the other hand it flew for nine days.

Another alternative is that you can use CO2 as an oxidizer -- Magnesium, for example, will burn in a C02 environment. Building a jet engine that runs on Magnesium is probably a non-trivial exercise, though!

If you really want to build a Mars airplane, I think nuclear is clearly the way to go. I don't know how you would test it though, since we tend to frown on running unshielded nuclear reactors these days.
I have 13 production instances on DO and have been very pleased. Some of them are heavy on the CPU. I did quite a bit of testing comparing equivalent DO 8&16GB instances to Linode and DO came out ahead each time. That may have changed now that Linode released all their upgrades.
Yeah that should be fixable in software - the screen itself can detect and ignore palms
I'm glad it's finally compatible with LastPass! That alone increases usability quite a lot.

The cartoon characters strike me as misguided though. Their target demographic is not children.
The front-facing camera doesn't have an indicator light, so this sound is the only thing preventing an app from stealthily capturing a photo or video recording of you while using it.

I'd imagine analysis of your emotional reaction to some stimuli (gameplay elements, advertisements, whatever) would be fairly valuable.
The i7 Surfaces will have a better GPU than the 4400, I hear.

edit: below: "Core i7 version is the i7-4650U model, with HD5000 graphics."
> More broadly, the best and most creative work comes from a root of joy and excitement. If you lose your ability to feel joy and excitement about programming-related things, you'll be unable to do the best work.

This is probably true. If you're happy with what you're doing, you're probably (but not certainly) going to be better at it than someone who isn't happy with it, all else being equal.

However, being happy with one's job is not a reasonable goal for most people. Or, to phrase it a little more flagrantly:

The idea that we need to be happy with our jobs is bullshit.

Among the programmers I know, many of them claim to love programming enough that they're happy to do it full time (AND work on side projects!) -- and to them, earning a paycheck is almost an afterthought; it's a nice side effect. The amount doesn't even really matter to them all that much because programming is just so much fun. (This is not a straw man -- I've personally listened to employees at Facebook, Google, and various Silicon Valley startups express this very notion.)

These claims are not easily proven true or false, but I suspect that most of them are false. I think that if a programmer represents himself as anything other than absolutely in love with programming, then they lose a competitive edge.

The truth is, I think, that programming is just a job. It has it's ups and downs, and it's certainly less terrible than many other jobs. Like most jobs, you'll be given tasks that you can't get out of and you just have to learn to deal with.

Not being in love with your job is does not constitute a very serious situation. It's simply a necessary evil for most people.

Perhaps you're one of the lucky ones who likes his job that you do it from a "root of joy and excitement" on a daily basis. But I think such persons are quite rare.
Why not just purchase a VPN subscription instead? Why bother maintaining a whole server?