skysight-inc/HackerNews huggingface dataset:
As for iOS client's there are exactly 3 that come to mind. Gmail, Apple Mail and Sparrow (discontinued).

There's a good reason for that- Apple won't let you check a mail server on the client side. So you have to do what Mailbox did and set up huge server infrastructure to check people's e-mail then send push notifications. It makes it a lot more difficult than just making a client app.
If you found this article interesting you might also want to read Normal Accidents http://en.wikipedia.org/wiki/Normal_Accidents which details many similar accidents in planes, ships, nuclear power plants, and more. The author proposes a model for identifying complex, tightly coupled systems in which operators have little chance of avoiding error. The parallels to operational failure in complex, tightly coupled software are evident (at least they seem so to me).
Maybe it would work if you made it half the size of the moon...
Many currency exchanges advertise similarly. Rates are just bad or very bad.
I really appreciate the response!! Also, idk if you knew where I am from when you wrote this, but I absolutely love the shoutout to the local Dallas shop. I will for sure start there and then exhaust all of the other resources that you mentioned.

Thank you very much for your time!
Merci buckets.
This is another area rip for disruption. Does anyone knows why all these firms such as Fidelity get away with charging dollars on every trade? Is it because exchanges charge these feeds? But then I guess HFT people must be enjoying per trade fees of almost zero. Why they don't have to worry about per trade fees?

To me it looked like each trade is an electronic entry in market and should cost near-zero dollars givens the volume of all trades.
Have you already modeled it? If you're comfortable leaving an email address so I could get in touch, I can send you a few prints of your design.
24th Birthday: What it’s like to be 24 for a Software Engineer in India
A housemate (linked below) runs http://captricity.com/ -- crowdsourcing OCR is a really good idea.

The collaborator for the main site used to work @ cap, and we've been evolving a REST API to simplify calling into mturk.

For quality, we don't use arbitrary mturkers. Getting good results on mturk takes a lot of experimentation: I now think about it is as a combination of HR agency, traffic conductor, and street vendor. The challenges of building a useful & sustainable app on it are a bit different from what's addressed by crowdsourcing research papers, though that's not so surprising in retrospect.

Sounds like this deserves a blogpost. It's been a fun summer project. Basically, nodejs with roll-our-own crowdsourcing algorithms, APIs, and UI widgets. A lot more to do, but it's finally good enough to address my proofreading needs, and I'd like to help others who also need to get some writing done asap :)

Btw, we're $0.004 / word, not $0.04 ;-) That means we already cost 60% less than shops with comparable quality and slower turnarounds.
Javascript required, if you're as confused as I was.
This is undoubtedly a win for science, but I wish we could push the envelope even further. For example, which company is willing to fund Dr. Bussard's IEC Fusion research [1]? The government is currently the only interested customer, and just barely at that.

1. http://en.wikipedia.org/wiki/Polywell
Simply not true - as long as you don't use internal APIs, apps made for an older Android are completely compatible in newer ones, and new APIs are usually backported to older Android versions with compatibility libraries. When you update your Android OS, all of your apps will continue to work the same and you don't even notice.

Contrast this to iOS - whenever there is a new iOS version, developers have to scramble to update their apps because they very often break or the UI is broken by changes, etc.

Android is much much less hassle when OS updates roll around, and I develop for both.
I heard many of these claims--especially that there would soon be a Brave New World of Mathematics where proofs via computer would be the norm--about a decade ago, when I was in grad school. Let's just say that I'm not holding my breath...
Don't have the links handy right now, but there are patents for these types of physics hocus pocus "inventions."

Also, why does the title of this submission have quotes around "cheapest?"
DreamHost is mostly used for LAMP stack. you might want to Use heroku which offers first-class ruby support.

https://devcenter.heroku.com/categories/ruby
> My point is that it’s dangerous to just grab a database off the shelf because its fun and trendy. You might end up creating a lot of technical debt for yourself. Do you know you’re handling an extremely high volume of a single somewhat-well-defined “thing”? Then the hierarchical model might be an amazing bet for you. Do you have many different kinds of records that link together, but don’t necessarily contain parts of the whole? A relational data store might be the ideal solution.

This seems to me the most important point of the article and I fully agree here. What I'd like to add is that a DBMS like CouchDB is IMO fully suitable to the use case you describe. ArangoDB, which was also presented at that conference, appears to be even easier for those kinds of datastores - I haven't been able to play around with it however.

There is no such thing as a perfect DBMS - and that applies to RDBMS as well. With Couch you give up sharding, Ad-hoc querying and per-document security, in return for conditionless replication, relative fool proofness in terms of indexing, the ability to have fully normalized relational data (compared to other NoSQL) and mobile offline capabilities.
Even Gifted Students Can’t Keep Up
Conway’s Game of Life for Curved Surfaces
So, this is a Kickstarter for Bob's game, based upon Bob's game, which was itself based upon "Bob's game"... I've never heard of any of these games, and based upon this shitty Kickstarter, I really don't care.

Has the author considered thinking of a new name for his game?
The arduino stepper stuff is pretty useful as well -

http://arduino.cc/en/Reference/Stepper?from=Tutorial.Stepper

http://arduino.cc/en/reference/stepper

http://learn.adafruit.com/adafruit-arduino-lesson-16-stepper...
The Difference Between Managers And Leaders
I didn't even bother looking at the video until I read the third paragraph. Holy crap...I closed the tab within five seconds. I could produce a better video than that, and I don't know a damn thing about creating and editing videos.
Doesn't this give the value of pi if you don't put the decimal point before the first number? I mean you could say it represents pi*10^32, right?

Incidentally, I used the same technique to memorize some (fewer) digits pi in English. https://en.wikipedia.org/wiki/Mnemonic_major_system
That's what "web traffic" means. It didn't say "Internet traffic".
Introduction of Memory Leaks
Thanks! I tried to answer it.
No they are not; military is more likely to kill civilians if they survive; so their "utilitarian value" can be considered a negative.
I am currently reading "Web Application Development With Angular". Its a well written book geared towards who already know angular basics. That's why I suggested O'Reilly book as its introductory which explains angular core concepts.

Another book worth looking at is: Recipes with Angular.js which is covered under Leanpub Unconditional Return Guarantee. so if you don't like the book. 45 days of purchase you can get a 100% refund.

https://leanpub.com/recipes-with-angular-js

so you can try the above, if you don't like the other two
"I am honestly sort of philosophically opposed to making a 'proper' Kickstarter campaign"

Then why the hell did you bother in the first place?
I have created a rough proof of concept at this point and I am using google sketch up right now to try and model it in CAD format. I hope that answers your question!

I would love for any advice you could give so please do shoot me a line at bentechwild at gmail dot com! Thank you very much!!
Your quest for personal perfection, young grasshopper, will not be complete until you accept that others have different preferences, which are just as valid for them as your lycra-clad Lanciness is for you.
There was an article that mentioned ancient roman concrete survived so long not because it was STRONGER (it's about 10 times weaker than modern concrete) but because it survived the elements better. At least partially, because it was made with volcanic ash. I'd bet the same, or a similar, circumstance is the case with the bricks.
I guess someone had fun writing that? I would have preferred comedy instead. I didn't like how it lied and didn't even offer any other web pages after I replied :) And what kind of life does this we server have? Well, actually none; it is not alive. Plus there are lots of organisms with lifespans on the order of weeks or less... Just saying...
A song like "Still Alive" from Portal should be used to accompany the depressed page.
Everyone does Not need to learn how to code
Have you tried just dextroamphetamine? I was originally on that with no sleep problems, then switched to Adderall during a shortage and immediately couldn't sleep through the night.
Why do I have the feeling this is /r/seduction condensed into ebook form with a paywall in front of it?
The language on the page was changed. It originally said fees. I suspect someone behind the service read the comments here and fixed it.
Apple barely made it also; this is a nature of this game. High risks, power returns, winner take most.
It's on, but I use NoScript. Are you new to Hacker News? It's pretty common here for people to be security- and privacy-conscious so I think you might want to avoid that kind of attitude the next time you see someone making a similar comment to mine.
Ah, thanks for that. I look pretty stupid now...I have actually heard of that definition but somehow I was thinking of time being ultimately defined by Planck units (time required for light to travel a Planck length).
that's a nagative example that proofs how valuable testimonials/excerpts/trial are when introducing a product to brand new customers
Here’s an Amazing OS X Concept Inspired by iOS 7
Yes, please do! I can only begin imagine some of the issues, having fed a couple thousand minutes through typingpool, but there isn't a lot of writing about using it at scale. I'll look forward to it.
This looks great, for some uses, but I know myself (and a lot of my coworkers) would much prefer a beautiful iPhone calculator that behaves more like a 10-key/adding machine than an iPython notebook.
so learn sanskrit first, learn their numeral equivalence, then you can learn pi!

In all seriousness, I've always wondered how I could learn Pi. I've seen people assimilating a word to each double digits. Then make a story out of those words.

But first you'd have to learn exactly 100 associations.

Anyone knows of another technique ?
It is great that someone with a Fields medal is interested in interactive theorem proving. And he is right that mathematics will completely change because of it. Soon.

I doubt though that HoTT is the way this revolutionary change will happen. If you don't believe me, try reading the first few pages of chapter 2 of the HoTT book. It is basically total gibberish to me, and yes, this is because I am neither well versed in constructive type theory, nor in homotopy theory. I DO have though 10+ years of experience in interactive theorem proving, as well have a diploma in math where I learnt the basic notions of topology. Now, if this is gibberish to me, it will be gibberish to about 99% of all mathematicians out there .

A revolution does not happen by excluding 99% of its targeted population. HoTT will have to evolve into something much easier to understand with a clear value proposition to non-homotopy / non-type-theorists before I would even remotely consider it for providing the underpinnings of a system for interactive proof.
How can ka mean 1 or 0, ta mean 1 or 6, da mean 3 or 8, etc ??
Some sounds have multiple numbers associated with it!
I back RyanZAG here (hey Ryan :) ). I went from 4.1.2 to 4.2, 4.3 and now 4.4.2 without hassles. The exception is KitKat where a lot of developers updated their apps specifically to support the new ART.

[Rant]: I find that it gets a bit silly in iOS land, in the sense that local (South African) devs who have abandoned/flopped apps had to go and update their apps after forever to match the 'look and feel' of the new iOS, whereas with Android one can go without noticing that.
There are plenty of reasons.

* Single file to back up
* Unix fs permissions sufficient for security
* Simplicity valuable over write concurrency
* Ability to write functions/aggregates/collations in the language you're embedding sqlite in
* No need for maintaining and securing a system daemon

This article isn't, at all, about a problem with SQLite. It's about graphite shipping a stupid postgres schema. Had they used text for the column like anybody who knows how to use postgres would recommend, the graph names would've transferred fine.

TL;DR - graphite devs don't understand postgresql, graphite user misdiagnoses the problem and blames sqlite for it.
Right, yes, the movie version "was inspired by".

http://articles.latimes.com/2012/may/23/business/la-fi-mo-el...
Having used CoreData/Sqlite on iOS I yearn for Postgres.
Yes. Each new airplane type that you're going to pilot requires you to first attain a Type Rating[1] in it.

For instance, I picked a random link to a flight school that offers a B777 type rating course[2] - which takes 14 days of ground-work and 9 days of flight training (36 hours in the simulator in this case; often for big airliners it's going to be too expensive or impractical to perform a type-rating in a real aircraft).

Additionally, having attained the type rating, you're required to maintain "currency" in that type by flying it frequently; if you let type currency lapse by going too long without flying it, you need to undergo a kind of mini "refresher" training/assessment to regain currency again. This is the case for Private/GA Pilots in NZ at least, I'm not so familiar with other jurisdictions or license categories.

[1] http://en.wikipedia.org/wiki/Type_rating

[2] http://www.balticaa.com/en/aviation-training-courses-/type-r...
ah of course. lesswrong, the largest circle jerk on the internet.
I was under the impression that even verification is Turing undecidable in general - ie http://en.wikipedia.org/wiki/Entscheidungsproblem
I asked this question in ##hott on freenode last week, and someone recommended http://www.cs.cmu.edu/~rwh/courses/hott/
Show HN: simple page to list all your social networks' profiles
I might be nitpicking a detail, but this bullshit has to stop. Dear tunnel-visioned SF residents, Ford Motors and Monsanto are not non-tech. (Uber is). This makes the whole premise of the article flawed.

I really wonder what kind of rock you must be living under if you think that five guys hacking a ruby on rails site is technology, and making cars isn't.
Actually, it is not true for the whole SQL. It is just true for implementations that require secondary indexing or extensive denormalization. This is essentially the way you would implement SQL if you were copying 1990s database kernel design but it is not the only way. Unfortunately, almost everyone still implements database engines this way because that is the way they have traditionally been designed; designing a genuinely new database kernel from scratch is not for the faint of heart.

I normally design around databases in the tens of terabytes to tens of petabytes range, it is not an unusual scale. A database engine designed as the parent outlined would start to exhibit unacceptable performance characteristics at single-digit terabyte scales. A terabyte is tiny; I can buy servers with that much memory.

Complex multi-attribute selection and joins are efficiently parallelizable but most databases do not implement algorithms and data structures that allow this to be realized.
> Depends on the C libraries.

^ That tells everything you need to know.
Recommender systems, Part 1: Introduction to approaches and algorithms
what a load of bullshit. you don't even have a phD in mathematics, let alone in similar subject of HoTT. News flash calculus was considered very advanced curriculum for even mathematicians in 17th century, only discussed in scholarly correspondence of elite mathematicians and physicists. your ignorance is not the reason HoTT will fail/pass. This is not a programming language where the uptake depends on the stupidity of programmers. It is mathematical theory if the premise and potential is interesting enough it will thrive or perish. you are not special you are not a unique snowflake (neither am I). Science(mathematics is described as queen of sciences) needs good education to understand and appreciate it, you can't criticize which you don't understand.
I would love to read informed criticism, I for one even welcome a little ridicule if it is justified by sound arguments.
Invitation code - http://dlinker.com/join/inv_code=m_HN_oSr
The linked numbers are brilliant. Lacking the "in my head" math skills I should probably have, I regularly whip out Excel to solve the kind of use cases you can imagine from the linked numbers in the video.
Could be that they are different Sanskrit characters without similar notations in English?
I presume it's a tonal language (like, say, Chinese), where words have different meanings depending on the gone that they are said in.
Graphing functionality on a phone reminds me of an old TI calculator. I really don't know why recent OSes (be it on PC, smartphone, tablet) always came with such feeble calculators. It's not like TI calculators are difficult to use. Sure if all you want is add/min/mul/div functionality the TI is essentially a traditional calculator, and then behind that you've got all these nifty graphing utilities. It's not like a graphing calculator app is going to be that difficult to program, or going to be large in size. But no, in 2013, vanilla OS installations are stuck with a calculator app that has less features than that of a computer a few million times less powerful.

(Now I feel bad; bitching and complaining is against the Open Source Spirit).

Edit: I do recall that OSX comes with something similar, except that not many people actually know of it (as far as I can tell, from my friends with OSX).
This looks closer to Mathematica/Maple/MATLAB than a basic calculator, although still nowhere near the power of those.

Of course 1/0 should be +Infinity, not ?...

(Disclaimer: I have a Mathematica console always open on my desktop, and regularly use it for all kinds of calculations.)
If everyone spends a few hours programming, obviously not everyone of them is going to become a professional programmer, but some of them will discover they like programming and will continue with it. Some of those people may never have considered programming before.
Porsche Provides 3D Printer Blueprints for Scale Model Cayman
Surprised that there is no Latin American country represented.
I also scored 1600 as a senior (during the 2003-04 school year). As an 8th-grader in 1999-2000, I took the SAT and scored "only" 790 verbal, so high school wasn't good for much in the way of verbal points.

I read a lot. That's what it's testing.
I don't think you can calculate the circumference of the Earth to within a few inches that easily because earth's topology isn't perfectly smooth. It has ups and downs all over.
Because I am sleeping in my car and have no resources to get new equipment, and I would honestly like to make an OUYA version because it is a good platform and I appreciate their stance on development. I don't like the "infomercial" feel that most successful Kickstarters seem to have but I do like the original spirit of Kickstarter which I feel was more intended for situations like mine.
And now for the majority market share, the android version?
I basically stopped using "calculators" when Soulver and more recently Calca came out. Much easier to use and a lot more flexible.

That said the graphing in this looks quite nice.
And is significantly bulgy around the equator due to rotation. Calling BS.
This is going to test HN's tolerance for myths and pseudo-science, but then it's a Sunday. "It has a self-contained master-key for extending the evaluation to any number of decimal places." is not going to convince many people here.

There are many alternate views on the origin of this verse itself. The one I find most believable, is that this is a fairly recent fabrication [1]. There is nothing to suggest that we had this level of accuracy that far back. For instance, how was this arrived at? Methods? None. But much later, _in the 5th century AD_, Aryabatta used a simpler expansion for which we actually have some evidence.

Just like most other religious texts, the Vedas don't stand up to modern science and rigor. You'll see plenty of revivalist material on the web; many here in India hold it in high regard. In my view, its lasting significance has been the role in dividing India into castes. From the priests to the serfs, a system that continues to hurt even today.

[1]: http://vedicmathmyth.quora.com/The-misconceptions-of-the-poe...
Just because an OS has a "majority market share" doesn't make it a suitable market. Elegant, minimal premium apps like Clear have done well on the iOS app store, but it's hard to imagine a $5 calculator app getting much interest on Android.
They differ in the way they sound; they're actually different letters. Check this consonant table, there are two "ta", one in row 3 and the other in row 4: http://www.languagereef.com/consonanttable.php?lang=SANSKRIT

This video shows their pronunciation: http://www.youtube.com/watch?v=y8GhoAIAtt4

This structure is same in all Indian languages.
But yes, this is (partly) a programming language where the uptake will depend on how easy it is to understand.

By the way, I don't have a PhD in mathematics, but I do have a PhD in interactive theorem proving.
Why should 1/0 be +Infinity? Think of 1/x at the limit as x->0 from the left and from the right
As a Matlab enthusiast, this is probably the coolest thing I've seen in years.

Good job guys, I have high hope for this in the future!
I was also getting a strong Dave Barry vibe. It's not bad - but it's easy to let the schtick get old, and Dave Barry is still alive. Maybe the guy is testing the theory that if you understand it well, computers are as crazy as Florida and thus capable of generating as many bizarre anecdotes suitable for column grist as Florida. Plausible.
>While I'm sure you mean no harm, you are - quite simply - wrong. There are plenty of people who live lives they would never be able to live without medication, and without many of the harmful side-effects being discussed.

He isn't "quite simply wrong", by your own point. It could just as easily be the case that the severely mentally ill only couldn't live because of their interactions with "non-ill" people as it could be the case that severely mentally ill people would up and off themselves en masse by virtue of their 'illness' alone. The only life a severe schizophrenic can't live (for example) is one in a society which demands non-schizophrenic behavior, else death/shunning/exile/whatever. I here note that in order to determine that someone is mentally "ill", a defining criteria for diagnosis is being diagnosed by someone confirmed to be not ill.
As someone who has done a fair bit of Android development, it's ironic that you mention that. The Android design guidelines tend to change on six month basis, and not always for the better. Sure, the changes are usually smaller, but it can get pretty annoying after a while.
A bit of background on the verse:
http://vedicmathmyth.quora.com/The-misconceptions-of-the-poe...
No, it's just that there are different sounds that transcribe to the same letter in English. (aspirated th versus th (th in thirst)).