skysight-inc/HackerNews huggingface dataset:
"when ordinary matter meets anti-matter, it's an Angels and Demons style explosion"

Oh goodness me, no. They annihilate to create a lepton pair. There is no explosion, really. Subatomic physics is much more boring than popular science would have you believe! You must try quite hard to get an explosion - it isn't chemistry, where things explode simply because it's Wednesday. Particles that are their own antimatter are not all that exotic either. Z bosons, gluons and photons are all their own antiparticles too, and perhaps neutrinos.

As I understand it (and I am a nuclear physicist, not an astrophysicist) there are few (no?) observed natural interactions known to produce high energy positrons (i.e. with energy >1 GeV). So, if you find one coming from space, it is an indicator that something unexplained has happened. Since we know where there must be clusters of dark matter and WIMPs are theorised to produce such positrons, dark matter decay is the leading candidate for an explanation for a high energy positron coming from such a direction.

Or it could be aliens, of course.
Another case of Betteridge's law of headlines.
A Renegade Innovator Inside eBay Took A Team Of Six Halfway Around The Planet
I see an immense potential for a product like this. Art and architecture come immediately to mind. Because it makes a physical wire-frame quickly, it can also be used for prototyping and brain-storming product ideas. I am sure people will come out with extraordinarily creative things to do with this once they get them in their hand.
Compilers are intimidating.

I mean, the basics of parsing and lexing are easy enough to understand & do and forming an AST is straightforward but all the "clever stuff" adfer that, all the hundreds and thousands of optimisation tests that are done - they are mind boggling.

Each one by itself is pretty straightfoward but start adding them up and layering them on top of each other and it gets crazy pretty quick.
What happened to the entertaining, informative giant that used to be the Gizmodo/Lifehacker/Kotaku network? They've faded into a bunch of pageview garnering alarmists. Someone got me thinking like this, I don't remember who, but the more I look at it, the more it seems like they're just capitalizing on current events to garner page views instead of trying to... Oh, I don't know... Do something useful.
Show HN: Control Super Mario with a mobile phone
Previous discussion:

3D printing pen lets you draw sculptures in thin air (newscientist.com)

http://news.ycombinator.com/item?id=5243271
Inside the anakata kidnappers’ lair
I have to ask, is there even a practical purpose for this? Is there even some remote screwball application for having to have one machine handle 1,000,000 requests? One of the things I like about coming to HN is that the items on the front page are often actionable pieces of advice or clever and interesting hacks. I don't feel that "$LANG can do $LARGE_NUMBER of things" fits the bill. For example:

C - Handling 1 Million Concurrent Connections
Java - Handling 1 Million Concurrent Connections
Javascript - Handling 1 Million Concurrent Connections
Go - Handling 1 Million Concurrent Connections

If it was 10^10 connections, now we are talking about some clever hacks to get that to work.
Diablo.js
I have a problem with honesty as the redeeming quality problem of the article. Honesty is certainly one of the most important traits of a journalist, so is understanding bias and preventing bias as much as possible. Broder was honest in representing his trip but apparently (sloppy notes, see NYT article) didn't do due diligence when it comes to questioning his own perception and recounting of the events.
For JRuby Streaming I have used Torquebox (JBoss) successfully.
start with Ruby as backend for online games...

continue with Ruby as backend for audio/video chats...

consider Ruby for streaming podcasts...

etc. etc.
It is kind of stupid that the penalties were MORE than the actual electricity. Shouldn't it have just been the cost of the electricity that they failed to use?

That way loopholes like this wouldn't have existed.
Most "hacker advice" articles are old. Ruby hasn't been popular for all that long (I started hacking in it circa 2004, and I was a very early adopter, on the broader scale).
Isn't SimCity as fun as it is because the player has godlike power over everything?

I can't imagine SimCity: Libertarian Edition being as much fun if you just sit back and watch entrepreneurial sims do everything themselves, followed by sim corporations taking over your sim world.
Partnering with Twitter? Good luck running a sustainable, reliable business! The idea by itself is brilliant, but the reality is so harsh, when it comes to consuming Twitter's API, especially given the fact that the company's decisions regarding their API usage is highly unstable.
isciurus' page is nsfw
max-width is significantly nicer than width for mobile users.
Oh, that's embarrassing! I read that, but somehow convinced myself that it was part of another comment.
But why do you find it unsuitable?
Looks like the next release.

http://trac.nginx.org/nginx/roadmap

It's only SPDY/2 for now although SPDY/3 eventually.
It's quite common if you ask for a quote for hosting in the UK.

If you ask for a single server you generally get a monthly allowance. For example, one of our servers sits gets 5TB a month on a 100Mbit port. Saturating that 100Mbit port would give me 30TB (and a large overuse bill!).

But if you ask for colo rackspace (1/4,1/2 or full 42U cabinets) then you generally get to choose what drops you get (and what speed), what connectivity and what the 95th percentile billing rate is.

Here's a random example (i've no connection with any person or company in this thread):-

http://www.webhostchat.co.uk/request-products-services/26778...
Nice. We use jquery-filedrop, which is really simple, but does the trick.

https://github.com/weixiyen/jquery-filedrop
I think the largest issue with dark matter and it's cousin dark energy is that there is no observation of either, at all. What we see is a wobble here, or a mess of background radiation and we suspect it may be something to do with this high mass non-radiating matter.

I think this may be our modern ether. Though the theory of ether was far more interesting.
WhatsApp had over 2 million users connected to their (Erlang) server last year.

http://blog.whatsapp.com/index.php/2012/01/1-million-is-so-2...

Here is the same in Erlang for reference (from a few years ago, I would be interested to see if there is a more efficient way now):

http://www.metabrew.com/article/a-million-user-comet-applica...
Poll Everywhere is looking for Frontend, Backend, and DevOps engineers
Backbone, Coffeescript, Grunt and RequireJS - A tutorial
A good guide on how to get your Backbone/Coffeescript app setup and compiled with Grunt and RequireJS
> It would be hell to get the data off before imaging the drives. What do you transfer it to?

I'd guess you'd transfer it to the same thing that was accepting the data when it was coming over the 1Gbps link?
Lebron 9 South Beach Cheap For Sale - Nike Basketball Shoes
Yup, but you could say that for many IT companies. Why? Because most of them are getting money by utilizing advertising in one form or another. Is Twitter an advertising company? Is Facebook?
Pizza con i cicoli, ricette pugliesi
Adding Dart to a Google Web Toolkit (GWT) project
ha! this is gold
Just to point out another title edit by the mods. The original title was 'Xinu is not Unix'. Considering that's the first line of the body copy it was hardly excessive editorialising in need of fixing and actually did a better job of setting expectations than the pedestrian replacement title.
Hey, sorry I'm a bit late to the party on this one but thought I should share my 2c.

IMO jet engines will never be viable in cars because: cost, complexity, maintenance, noise, exhaust temperatures, and the operating requirements.

The trade-offs to fit it into a car would greatly reduce the benefits over a conventional engine. For example, adding a necessary air filter and exhaust system will see the efficiency drop drastically as you strangle something that requires a free flow of air. Having a power transfer system to a gearbox or a generator/electric motor will also see a great reduction in efficiency. The speed at which a jet turns necessitates a second turbine as a power take-off and hence more losses to bypass.

It's often thrown about that a jet engine is the simplest kind of engine, which is true conceptually, but to get any efficiency, practicality or durability out of it there's a lot of bolt ons that are needed.

I could go on but will cut it short(ish).
Much love for GAE
I setup a new site... www.astrologyspot.com.au. Yes it is an astrology site. No this is not spam.

It was so easy with appengine using slim3. I love you appengine, and slim3 you are pretty hot too, tie in freemarker and you have a webby wet dream. Yay.
Real Racing 3 was built with Apple's *next* iPhone in mind
> (...) but Ruby is much more of a "hacker's language" and pushes you to more "lispyness" in spirit and practice!

Which, I think, is one of the main reasons why Python is recommended more: it's simpler and has less sharp corners.
The other thing is that Ruby is significantly slanted towards the object-oriented paradigm while Python remains much more neutral in this regard.
How I Turned a $50 Idea Into a $5000/Month Business
Python command line oneliners
What happens when one of the fully loaded 1 million connection nodes goes bang? That's potentially a million users getting a poor experience.

Re-establishing a million connections at once is going to be hard on the network - the million were built up over a period of time previously yet now they're being re-established Big Bang style.
No, because disposing of the unused electricity has costs for the provider.

The way this works is that the provider offers a cheaper rate to ensure constant energy output, since the power plants can't be easily and cheaply scaled back.

As an example, Ontario paid millions[1] to get others to use their surplus energy; MS' provider could have been forced to do the same, hence the penalty.

[1]: http://www.thestar.com/business/2011/08/29/ontario_pays_othe...
I've never met an ISP that sells Racks in a colo that didn't bill transit at 95th percentile (if you chose to use theirs). Are you hosting bare metal, or is your colo providing the physical server?

If you deal with a Datacenter that is just providing you with a Cage + Power + Cooling + Physical Security, you are almost always going to pay for transit @95th percentile.
5 Tips for accomplishing your goals. Chapter 3
I tried this by setting an artificial constraint of build a CMS interface, no forms allowed when originally building http://createjs.org

This was useful as it forced us to look for approaches outside the traditional CMS space. And as quite a few major CMSs have since adopted the library, I'd call the experiment a successful one.

Here is the original launch post where I talk more about this:

http://bergie.iki.fi/blog/introducing_the_midgard_create_use...
An TCP connection is uniquely identified by a {local IP, remote IP, local port, remote port} tuple.

So if you are on 192.168.1.1 and want to connect to a specific port on 192.168.1.2 there aren't enough free port numbers to get 1 million connections. Thus the extending of the "ephemeral port range" (the local port number the kernel is allowed to assign) and addition of more local IPs.
Ask HN: Why do companies like IBM, HP and Oracle avoid showing prices?
Frequently I'm interested how much a piece of software or hardware costs and the only way to know the price is by contacting a sales person. What is the reason for this?
Two GTX570? And you are surprised that it works well? :D
Fun and completely irrelevant fact: "Xinu" is the name of the God of Pain in a popular Swedish role-playing game (pen and paper). See here: http://translate.google.com/translate?sl=sv&tl=en&js...
Exactly. Establishing 1 million connections is pretty easy in any language that supports async io, even scripting languages. The article is super-vague about the direction of the traffic, the nature and size of the messages and how much of the application is actually written in Ruby (vs. just being a glorified wrapper around redis and other systems written in c/c++) and the amount of work actually being done by the app. 179 requests per second is hardly something to brag about while you've completely saturated 8 cpu cores.
Amazon Global Coin - World domination or down the drain like FB Credits?
And just to address your point about the idle, next time you're taxing out to the runway have a listen, the engines will be very high pitched and whiny. That's a jet at idle (perhaps 20k rpm, 5% throttle). Then when you're about to take off listen for a point where it turns from a whine to a rumble, this is the compressor stage bypass valves closing forcing all the intake air through the jet. This is full power but the rpm has only gone up about 1/3.
Their email client can do it automatically. Basically, you just need to tell them, "Official emails will always have a big, green border around them."

You then have 2 problems: (a) What email clients will support it and (b) con artists will just put big green borders around their spam emails.
I think the only case where I would like to see AMAs on HN would be AMAs by YC funded startup founders. I mean, that's what the site is ultimately about, networking and getting to know other startups and their people.

But AMAs from random (internet) celebrities can stay at Reddit. I see no reason to split them here.
Show HN: An animated history of Reddit
I hope you're happily employed now!

Posting your experience with the Federal Courts is helpful, thanks.
Requirejs documentation is thourough, but some things are still hard to get right. This is a great help!
It is 2013, why are you doing "development" on a remote server? Is remote debugging now not a thing?
You don't control a whole country, you have on city (or now "region"). Any it's made so that Sims only move to your city if you provide everything. They wouldn't move to a new city where there is nothing, no schools, no fire department. I think that's close to the real world. If there is a new town or new part of a town to be build, no one would move there unless some people in charge decide to provide basic services.
It's a subjective experience. I, too, prefer to use the keyboard as much as possible but I've also encountered doofuses that mock that position because the mouse is "so convenient" and "there's no way it's faster to use the keyboard entirely". So I guess their better is different from my better.
Thanks! I found it very useful.
"Most of the meteoric rise can be traced simply to growth in the online audience and a switch-over from print to digital"

Until 2007 maybe, but now you're 85%-100% ads on all commercial topics and most users probably don't realize it yet. Face it, that's the truth. Enjoy your paycheck and stock grants but there's nothing to feel proud about your company. Every time business owners growl about less traffic and penalties from "unbiased Google", magically Google's revenue grow by another 30%.

we like working on interesting or hard problems, just like any collection of geeky engineers and scientists. That I get paid to do what I'm passionate about

Hard problems...like intercepting user intent and not sending them to sites but to Adwords links? That's what your real boss, Nikesh Arora said during his conference call. Or making the background as close to white and hide the ad disclaimers as possible?

You sound Carmela Soprano "I'm just a housewife, cooking for my husband, I don't know where the money to support me comes from."
DotCloud - Deploy, manage and scale any web app
The "F" key should work :) but it doesn't last forever, I put a limit on it.
Yes. How would the bubble reach us?
This is great - well done! I don't suppose you'd be happy to share the details of your italian Whizz Kid ;)

How did you build your partnerships - did you already have the relationships before you built the product or did you have to pitch them from scratch? Did you already have a relationship with the guys you gave the 8 free tests for testimonials to?

I'd really like to find out more.
IMO, he's making it look worse. I didn't even know about this article and I've still mostly avoided reading about this stuff but my take away so far is that Elon's car is hard for normal people to use, and he's so aggressive at attacking anyone who would say anything bad about it that they're probably right.

Of course you can say "but, you're not even fully informed about the issues" and it's true, but neither will most consumers.
A fine example of backpedalling and talking shit.
How to Make Your Brand Memorable On Social Media
So nobody gets the trademark and we carry on. The problem is a land-grab by a private company wishing to sew up the word 'python' as it relates to computers and software all across the EU.
Sometimes I think it's easier for people to pick faults with other peoples products than it is for them address the inadequacies in their own output.
As a good in my opinion (but unfortunatelly improbable) move from Google, will be to switch from Java to Haxe in next versions, because it compiles both to native Android and to Java and looks similar to Java, on the first view.
Is Apple a phone carrier not a consumer electronics company, since a huge chunk of their revenues come from carrier subsidies that lock consumers into multiyear contracts that obfuscate the true costs (e.g. $2200)?

Google is spending so much of its revenue on other ideas like Glasses and self-driving cars, not for PR purposes, although it does garner positive PR, but because getting 95% of you revenue from a single source is risky in the long term, and they are obviously trying to diversify.

If you want to describe Google as an advertising company, go ahead, but that is a grossly under-descriptive term of what the company truly does, as poor a description as calling Amazon just a retail store.
Detailed Error Handling In Bash
apis: the joy
Yes, if they were right, it wouldn't matter much, but it would energy a lot
"Javascript is so far removed from what most programming languages look like, that people who know almost any other modern language still require extensive education to understand Javascript."

Eh? Anyone who has ever programmed any functional language can grok JS very quickly.
You're being pretty ridiculous. If Border had been told the data was on he would have probably approached note taking in a completely different manner. Having not been told that he took shoddy notes and relied on human memory, perception and so on. Now the real data comes back and makes it seem like he was lying and that's not fair.
Yes, google-authenticator prints out a list of unlock codes when you run it. You can add extra ones to the file it puts in your home directory whenever you want.
You rock buddy.
Wow, guess I never did the mathematics on an opiate addiction before. And people say smoking is an expensive addiction!

That's a massive amount of money for a couple of (very cheap to produce) tablets each day.
Seems like stupid marketing shit
>If nothing else, the media will now think twice before giving an unfavorable review to Tesla cars.

You think so? I would think the opposite. Tesla has no power but to throw a fit and act foolish. If anything, I would expect future reviews to approach the review negatively and defensively.
Depends on the programmer.

Both C# and C++ can be used to make a video game, they can be used to make a 3D video game. Heck you could almost certainly write a well selling commercial game in C#. I mean Minecraft was written in Java and look how well that has done...

The reason people like C++ is because you can optimise it down to near its optimal speed at key choke points in the code. It is kind of like the 95% rule, 95% of the time C++ and C# will run at similar speeds, but it is that 5% where C++'s versatility really matters.
If you look at Android or Chrome, they are both large projects, that did not start out to generate ad revenue, but both to improve mobile and the web, and to build a defensive moat that would prevent a competitor from controlling the on-ramps

How sweet of you, must be the coolaid :). Google controls what % of mobile advertising? Where would that be without Android and the many Google Apps that come as a package? Defensive moat or trying to get more ad dollars by learning location, habits and everything else?

Google's business model: Show mostly, to almost all ads to people searching for information that can be monetized. You went from 1 ad on the right to 5 on top, 10 on sides, 2 on the bottom and then another 10 Google pages. That ad money is being passed as price increase to consumers. Enjoy your monopoly, but you will be disrupted.
The game can actually go on for a few minutes when you lose connection. So I don't think there is much of the simulation happening server-side.
Ask HN: Will BitCoin reach $30 this week?
No betting, just discussion. It's already $29.5 on MtGox.
Cloudbase.io for HTML5 and JavaScript apps
I don't think they mean to impress the techies. The product's market is clearly creative/artistic people. Creative/Artistic people did not have easy access to a medium like this. I see this company popularizing an artistic medium (like canvas, paper, stone) by providing an easy-to-obtain tool to make the art.

I can see a few moms and schools wanting to buy something like this for their kids. This will also be a hit at kids' parties just like the fancy shaped balloons. Also, I doodle badly and I want one :)
Phew, from the title I thought we were talking about soap bubbles. Just one more thing kids of this age would have to grow up without.
Since IT departments are generally regarded as cost centres & therefore they are usually either understaffed or expected to keep costs to the absolute minimum by upper management this is hardly surprising.

In this particular case, the department is in a double bind: the success of phishing emails threatens the ability of the university to send email to many other major hosts on the net. If you sat the users down and asked them which they need more, a reliable email to people outside the university or access to Google Docs, then the decision isn't so clear cut all of a sudden is it?
Hasn't this already been discussed? http://news.ycombinator.com/item?id=5241085
They want to figure out how much the customer can afford to pay, and then charge them exactly that much.

This is discussed specifically in [1] -- while the entire essay is well worth reading, Ctrl+F "Bad Idea #2" for a discussion of why you shouldn't price your products this way.

[1] http://www.joelonsoftware.com/articles/CamelsandRubberDuckie...
I strongly disagree. I am (or was) using both Hadoop and HBase and they are useful for very different purposes (huge amounts of nonstructured data, possibly with difficult-to-predict use cases versus structured data).
Also note that Hive is just a layer over Hadoop with DB-like syntax, it doesn't make Hadoop a DB. It is still running MR queries beneath it.
I have seen this ..
SEEKING FREELANCER - REMOTE (Preferrably eastern Europe)
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The Internet Cafe - Internet Games (1998)
So you are basically proud of retrieving money on the back of an underpaid 16 year old developer?
Vimcasts has an episode on netrw.
http://vimcasts.org/episodes/the-file-explorer/
Well, it's not going to happen during our lif
Wow this book looks f'ing awesome. I'm definitely going to read it.