skysight-inc/HackerNews huggingface dataset:
I tried coming up with a proof, but instead I have a new observation I can't explain:

FACT: No prime number can end in an even number (because all such numbers are divisible by 2) or in 5 (because all such numbers are divisible by 5). So, all prime numbers must end in: 1, 3, 7, or 9.

FACT: When you multiply 2 numbers, the units digit of the product is the same as the units digit of the product of the units digits of the two numbers.

FACT: Combining the last two facts, every prime number squared must end in 1 (if the prime ended in 1 or 9) or 9 (if the prime ended in 3 or 7).

FACT: Thus, every prime square modulo 40 must be one of the following numbers (and cannot be any other number): 1, 9, 11, 19, 21, 29, 31, or 39.

So, I just have to figure out now why 6 of those 8 numbers can't be prime squares modulo 40. That's when I noticed something odd: no number x, such that x modulo 40 is 11, 19, 21, 29, 31, or 39, is a perfect square. (Tried this through x = 1 million.)

Anyone know why that is?
Google plans to launch open AirPlay-like alternative
http://ycombinator.com/newsguidelines.html

"On-Topic: Anything that good hackers would find interesting. That includes more than hacking and startups. If you had to reduce it to a sentence, the answer might be: anything that gratifies one's intellectual curiosity."

This post is all about analysing the dynamics of a situation and finding the optimal behaviour within that situation. That seems highly relevant to this community.
Cash includes anti-counterfeiting measures, though, which are not free. The cash itself must be printed, too - also not free.
Apparently down due to heavy load. Unable to get anything from Coral Cache, but the text is in the google cache:

http://webcache.googleusercontent.com/search?q=cache%3Ahttp%...
Possibly, though it's not necessarily a mod trying to "suppress" a story. There's probably a social mechanism at play.

When posts on HN are flagged, their ranking gets hit a lot. And a reasonable share of people on HN are YC affiliated. Part of the value of YC is a sense of camaraderie and I suspect YC participants are more likely to support/flag posts that are supportive/dismissive of YC related enterprises.

It's a bit like if someone posts a big troll post about Ruby. I, and other Rubyists, are more likely to flag it. People who buy into the whole "Ruby community is evil" nonsense are more likely to vote it up.
Discussion from when the paper was put up: http://news.ycombinator.com/item?id=4797036
In the US, the transfer of cash is regulated, which might be relevant to the argument you are making: http://en.wikipedia.org/wiki/Money_laundering#Preventive
To chime in on the screenshot issue - the only real way around a shortcut is to have some sort of Window... And you'd have to have some sort of setting that hides the window. I think Gnome has something like that.
"reddit/r/webdesign" #1 today: "Comic Sans for sarcasm"-movement on the rise
Much better than Apple Maps, but still:

* The Hayward Gallery is in the wrong place: http://here.net/united-kingdom/london/museum/hayward-gallery...
* Searching for "Dover Castle" goes to the Castle in Dover rather than the pub <500m away. (There is a drop-down list which has the match I want, though.)

And the non-Retina resolution tiles are annoying. Do Nokia's high-resolution phones get the same tiles?
If Droplet doesn't charge fees, how are they going to make money? Ads?
I'm wondering if there's any description of the voting ring detector used by HN
New Startup Genome 'Startup Ecosystems' Rankings
Does this have better local data in areas where Apple's mapping app is lacking? I ask, because where I live, this is actually bolstering the case for the new iOS mapping service.
The importance of Fun
Mandarin Orange Cranberry Pecan Stuffing
Site is down, but I think this is one of the images: http://imgur.com/07ukx
No kidding. Maps are about getting you to there.
Or one could choose not to employ such incompetent people to do such a supposedly important job. Unfortunately that would threaten the margins, which is what this is really about.

(These people are employed by private contractors, yes? If they're employed by the state, then why are they hiring such morans?)
> Microsoft's ribbon menu style is not replicated in Generic.

Typo?
Spending bills originate in the House. The Senate passes budget resolutions as part of the overall spending process, though. The lack of budget resolutions is a symptom of the Senate's lack of any ability to work with the House and show some Leadership.

Spending proposals that originate in the House, like the one(s) that included Paul Ryan's plan, are equally DOA as budget resolutions from the Senate when both houses can't agree... but at least the House is making some effort to show leadership.

Overall, they're both not functioning properly (which may be a good thing), but I was responding to the original poster's accusation that one side is to blame for this mess.
If this advice is taken the wrong way, then it "just pushes [the locking problem] to someone else", but often locking is a crutch. Sure, there are some programs that have a natural need for a lot of globally mutable state, but not many.

Let's be honest. Most multithreaded programs evolve from programs that are more-or-less single threaded. Then, threads are added in an attempt to improve performance, and high-contention locks are broken into finer grained locks when profiling shows lock contention in the critical path. I would argue it's better to either design for minimal mutable global state from the start. Failing that, it's often better to re-factor the code when you start scaling up the number of threads, before you start investing a lot of time into locking and breaking down your big locks into finer and finer grained locks.

I'm sure you're not one of those programmers who often leans on mutexes/semaphores/etc. as a crutch to prop up poor design, but there are a lot of programmers who do.
How do you select Juniors then if the CV is mostly irrelevant? Do you go by github profile?
You've taken the quote out of context, what he actually says is "This tool is for legal purposes only". That's quite clearly intended as a restriction on its use. The problem being that if the user does something illegal in a very minor way then he's opened himself up to a potentially large copyright suit because he's violated the license.

The point of the GPL is to stop the copyright holder from dictating what you can and can't do via the threat of a copyright suit. Extra clauses like this go against both the letter and the spirit of the GPL.

Either his extra clause is nullified by the GPL, in which case he's only created the illusion of legal indemnity for himself, or his extra clause is accepted, and the GPL is rejected, in which case he looses all of the important legal protections such as the warranty disclaimer. Either way his attempt to protect himself has failed.
I definitely am. That is neat.

Not quite "Python rubymotion" but still interesting.
I was going to say basically the same thing. Whether or not the attorney meant to do so, he was equating activism with terrorism, something that various parts of the government (local and federal) have been doing for many years now.

This doesn't mean that activists can't be terrorists, but to equate the two so generally is quite irresponsible.
I don't know a single good source to learn about networking, I've learned it myself by just searching the web and asking people who know. I've been thinking of writing a piece on networking in general too, but it'd become quite lengthy.
An augmented fourth sounds great as long as it is then resolved e.g. to the fifth. See "Maria" from West Side Story[1] for the probably the most well known use of an augmented fourth. The first interval when he sings "Maria" is an augmented fourth.

[1] http://www.youtube.com/watch?feature=player_detailpage&v...
It would be a nice thing if you had an external team of security experts validate your protocol.

We've seen too many start ups hacking away MVPs before even thinking about security. It all crumbles down when somebody takes an interest.

Just mentioning TLS/SSL on the FAQ does not make your system secure. And it's better to know now if what you've done is the best you can do, not when you have hundreds of thousands of users.
Sub-pixel text rendering and mobile OSs
HP Alleges Fraud In Autonomy Deal; Takes $8.8B Charge
To cause a fuss and make a point about the TSA.
Neil Barofsky For The S.E.C.
I really like this idea! However, I think the value of this really lies in building a community of users that share their drawings. That's what makes instagram really great and "sticky". I think putting a $1.99 barrier to entry into the ecosystem could be detrimental to the growth you would need for this to take off.
Web hoster Antagonist automatically fixes vulnerabilities in customers' websites
Google Glass could be the virtual dieting pill of the future
This is really starting to get to me.

The platform of this as iOS app based only is beyond retarded. You should be selling the service platform you create. Limiting an interaction to just an App is as stupid as those messaging systems that don't have a web front end component.
I recently started thinking about this the other way - that it's actually more racist to accuse someone making statements about group differences of attributing them to race - rather than culture.

It's a fact that the way people are raised has a huge influence on how conformist they are as adults; in a conversation about the average level of conformity between two different cultures, someone who comes along and brings race into it is the one who is lowering the tone.

Culture is important and heritable, let's just talk about that!
If you have any question, don't hesitate to ask (or go to website and talk on disqus)...
I guess you are correct. I much prefer it over endless discussions about whether entrepreneurs are only the people who raise VC money or not. I'll upvote it.
"Instead you just top up your account via your phone..."

What's self-explanatory about that? Are they billing my carrier so the charge shows up on my bill? Are they drawing directly from my bank account? Do they charge my credit card?
I think it makes sense for them since they are still in Beta with less than 1000 users if I read correctly. But yeah, a web app would be useful.
> Access to information is great but who cares? Do you see many people hanging in libraries instead of going drinking to the bar? No.

Everyone. Because what changed is not only the amount of information, but also the immediacy of access to it. Those people going drinking to the bar quite likely found it on Google before going there for the first time. And those same people now Google up everything they want to know the moment they need it, including many practical things. "Normal" (non-tech) people, from my observation, tend to look up on-line many things in their life, for example gift ideas, travel & tourism information and practicalities ("how to do X").

You could also argue that it is the first time so many people are exposed to such a big amount of cultural work - including pirated movies, music, YouTube and Internet memes. People share common culture across the globe, and the Internet itself slowly starts to behave like a single brain.
The article misunderstands IPv6 addresses. The best way to put it is that IPv6 offers addresses for 2^64 networks. IPv6 numbers networks, and hosts attach to networks.

In v4, hosts come first and networks second. In v6, networks come first and hosts come second.
Writing code is writing
If it's not written in PHP it's irrelePHPant
Very cool. I've had the idea of transforming http://www.patternify.com/ into something like this for a long time, but I'm glad somebody else did it :)
The Dylan Reference Manual
What you say here, and what is alluded to in the video are quite different.
There are some wonderful other films in the contest this was submitted to:

http://vimeo.com/focusforwardfilms/semifinalists

The one on synthetic fuel was especially interesting:

http://vimeo.com/focusforwardfilms/semifinalists/51886430
Check out Dwolla. You can use their service to send money for free under $10 for free or $0.25 for more than $10. They have been around for 3 years now and have quite a bit of traction with what they are doing.

https://www.dwolla.com/
bank transfers in the UK (to/from other UK bank accounts) are usually either very cheap or free, even for businesses. And as it appears to be only a temporary measure then its probably minimal cost to keep the odd customer happy.
C# Smorgasbord, giving you 35% discount on my book
I'm pretty sure there was something like a $30+ mil loss.

And having worked with one of the VCs involved your right about their level of 'clue' in the companies they invest in being minimal
On an iPad, the experience seems to be identical to using http://here.net/ in Safari. So this is not particularly big news.
Probably interest from holding your money you deposit with them.
What about the motions of your partner, what about the motions of shared blankets, what if said blanket is so heavy it deadens any movement, what if I have a fan on and it ruffles the sheet, what if my dog is restless? The scenarios for false readings are innumerable.
Linux Rootkit Found Launching iFrame Injection Attacks
Someone please explain to me how this "holding people's cash lets you earn interest" bit.

In traditional banking, you put money into savings and get a low return interest rate, or you commit to leave your deposit for a longer term to get a higher rate of return (Certificate of Deposit or "CD.") The reason this works is that the bank can now leverage your deposit with the Federal Reserve to borrow money to loan to others. So they take the interest the Fed charges, add some percentage to compensate depositors, add more to make a profit, and charge the consumer borrower a certain interest rate.

Some banks offer interest on their draft accounts (usually called "checking" accounts) but not many. And lots still charge a monthly fee for the privilege of keeping your money with then if your balance falls under a certain percentage.

So are you people saying this company is in the loan business? Or that their bank is providing them with an interest-bearing account for operating their business within? In the latter case, the margin would be so thin as to me non-existant.
Afrique : un marché très prometteur pour les tablettes numériques
OK, the point is any of these things could be the case, or not. Some people start consulting immediately. Some don't start until they have been working "regular jobs" for 20 years. Some start young, some start old, etc. There is no one way to start. Just start.
It is basically a pre-paid credit card without the plastic and fees
HTC One X Android Mobile Price, Review And Features
The HTC One X is an impressive ultra-slim handset with a4.7-inch infinity screen, smooth rounded piano-gloss sides, a curved back for comfortable handling, and a unified shell for increased durability.
Ask HN: Do you use Lifecycle Emails at your startup?
I'm curious how many startups here use lifecycle emails. Do you use a paid product (Customer.io, Intercom.io, Vero, Userfox, etc) or a custom-built DIY solution?

If you don't use a lifecycle emailing system...why not? Too difficult to setup? Not a priority?
Language defines thought, and thought informs behaviour. To use the two words in the same sentence like that is to treat the two concepts as equivalent, and to promote their equivalence in future.
Very nice!
I can imagine this app will get many users and create interesting community.
And I think that initial paying model unnecessarily limits potential users since there will be many way to monetize.
Ask HN: Where do you get your news?
I'm curious where HN readers get news, both tech and non-tech. Obviously hacker news is assumed if you're reading this.
clearly it's an idea whose time has come since i had almost exactly the same idea last saturday

https://twitter.com/zenpsycho/status/269678506475151362

and then followed through a day later

https://twitter.com/zenpsycho/status/269942225394348033
I'm using the one to highlight new comments.... it's great!

All we need is a little more traffic around here ;)
I completely agree with this. The site is not even returning a proper 404 for ill-formatted urls such as https://dropletpay.com/jsds. Instead it's giving a plain 500 error!
After Romney: Republican Soul-Searching
INTERCAL should be there too.
Autonomy misled HP about finances, Hewlett Packard says
I'm going to sound like a conspiracy theorist, but I honestly believe my opinion is the truth. The corporations truly run America by financing the politicians and if they say pull this paper or lose funding, you are going to pull the paper.

The big corporations (that run America) don't want patent reform. They buy up all the patents and force the little guys either out of business or to pay them large sums of money that shouldn't have to be paid. The patent system allows big corporations to keep a monopoly.

When I see a company get a patent for page turns, I can't help but put my hand to my face and just worry about the future of innovation.
Basics of Inkscape 2D modeling for laser cutting
nice. could get used to this!
Europe does not look so good but I'm surprised to see Paris as number 11 (second European hub after London)
Show HN: Show Images with Pure CSS
Shoot me an email Brandon. You might enjoy hanging out with the Nuuton team. We work with python and django.
I run a website http://www.younews.in and I have a personal section where it aggregates from my preferred sites: Hacker News, Reddit /r/science, BBC most shared, NYTimes most shared, The Hindu most read...
Laser Focus
Thanks for taking a look! I will be available here to answer any questions you might have about this new technology.
I wish all these startups didn't go so overboard on the hyperbole. "Military-grade security": What does that even mean? Which military protocols exactly are you following? What level of military vetting do your personnel have? Which certifications have you received?
That was also the original revenue scheme of Paypal, but it doesn't appear to have been successful--now they rely on transaction fees. Why would it work here?
Easel: A WYSIWYG Bootstrap Page Builder
Cloudera Impala Cheat Sheet
What about due dilligence? The fact that this can happen boggles my mind.
(In Birmingham only)
plane = aeroplane
plain = ordinary
Accepting cash is free.

What about the costs of storing cash? What about the costs of going to the bank and depositing cash? What about the transport and storage of storing low denomination notes/coins so you can give change? What about the costs & risks of being robbed of your cash? What about the costs of a staff member being robbed of the cash?

Accepting cash is not free.

With cash fraud prevention is unnecessary.

Ever seen a fake note? A fake coin (yes they exist)? What about a coin from a foreign country that looks like one of your coins, but is worth a fraction of the amount? What about the costs of the little ultraviolet light to check notes for legitimacy? What about the cost of the few seconds the cashier needs to look at each note to check that it's not a fake? What about the costs of the little highlighter pen they can run across it?

Fraud preventing for cash isn't free.
thank you ! issuu is unusable for regular reading.
Update to those who last checked in the 1990s:

"Hauntingly beautiful" is now officially a cliche.

I miss it, too, but the overuse is crushing any significance it once had.
Hacker News, Facebook, and Twitter are probably my primary sources at this point.

Secondarily: Economist (iPad app, I'm a subscriber and try to send the paper editions to /dev/null), Foreign Policy (iPad app, although it sucks), Foreign Affairs (kindle subscription), and news.google.com, particularly in the "editor's picks by publication" area.

I listen to Bloomberg and CNBC in the car (and sometimes BBC News or Fox News). CNBC in particular feels like YouTube comments; it's either masturbatory technical analysis, or such horrible fundamental analysis ("Intel had better be worried because server CPUs have lower margins than mainstream!", which is false -- it's a smaller market but higher revenues) that their technical analysis is better. BBC satellite radio rarely has actual news, though, and while Fox News frequently has programs calling themselves news, it's horribly biased. I miss VOA, AJ-E, or the real BBC international services.

If I end up at NY Times, Tech Crunch, Venture Beat, The Verge, The Atlantic, etc. due to a link on HN, Twitter, or Facebook, I sometimes browse around the site a bit more to see if there are other interesting articles, but rarely if ever go on my own. (The Verge is probably my favorite "new" publication.)

I compulsively read Mac Rumors and semi-compulsively read Digital Photography Review.

I also use Instapaper and periodically go through longform, longreads, etc. to add new stories, but I think I have a backlog of about 800 articles now. I mainly read those on airplanes or when donating blood or otherwise stuck, particularly if it's a public environment where I can't view work related materials.

I still use Google Reader, and have it split into folders for tech, economics (becker-posner!), and survival/military (some journals of people in Syria, journalists working in North Africa, and people in the firearms/tactical equipment industry). I'm terrified that Google might kill Reader someday.

xkcd and what-if are probably the only entertainment publications or comics I read regularly. Next after that might be Steam's daily deals.

I tend to add any interesting-sounding books to my Amazon wishlist, and purchase kindle and audible books pretty freely (a $10 book is far more expensive in time than money, and if it contributes one strong and correct thought, may be worth it)

Quora used to be a great way to get primary sources to talk about timely topics -- e.g. I could ask "why did Slide sell for a relatively small amount to Google" and get Anon User answers from (presumably) Slide early employees, public answers from known Slide people, etc. It seems to have fallen off from that now, due to a change in user population and recognition that Quora is "public" and any answers posted there should be treated as such. More interesting discussion happens on Facebook friends or friends-of-friends posts, now.

I basically stopped reading mailing lists outside of very tactically focused computer security and policy. I used to really enjoy Cypherpunks and some other lists like that, but they're basically dead now -- facebook and twitter have essentially supplanted them.
Your Immune System And Cigarettes
ccording to the National Center for Biotechnology Information (NCBI) there is an connection between smoking and the bigger incidence of respiratory infections and particular malignant.
It is great way to tax companies like Google and Facebook. 1 million fine for each day they wont comply, or ban in Europe. It's very simple, Watson.
Large entities can often mask accounting fraud with the helpnof an accounting firm. Think Enron and Auther Anderson. I'm pretty sure HP is going to sue the begeezus out of a number of complicent players. They should start with the former CEO of Autonomy.
There are places where social housing works. In the Netherlands social housing is often quite pleasant, especially if it is centrally/well located. A difference might be that there is much more of it in the Netherlands, so the middle-classes also often live there (especially early in their careers).
The switch from CDs to MP3s greatly reduced the profitability of the music market.

If this company is intending to do the same for payments, perhaps we should all expect to be paid nothing?