skysight-inc/HackerNews huggingface dataset:
I don't understand why NASA has never built a rotating space habitat to solve this problem.

Because it's difficult to do right. There is a maximum usable RPM beyond which humans cannot function due to dizziness/disorientation, and a somewhat lower max beyond which excessive coriolis effects would make working in the habitat incredibly annoying; generally, you don't want to go about 2rpm, though you could push it by screening your astronauts for spin-adaptability. This puts a lower limit on how large the habitat must be to achieve any particular level of spin gravity; for anything approaching 1g, it's pretty large, and no one knows just how little gravity is required to prevent the physiological effects of microgravity. To get even half a g at 2rpm, you'd need a structure 112 meters in radius, which is pretty dang big for a spacecraft.

You could probably still manage that with current technology if you just have two small spacecraft modules at the ends of a 224m tether (or a somewhat shorter tether if you have some unmanned equipment that's heavier than the crew module and can serve as a counterbalance rotating with a smaller radius), but then you've got a bunch of other problems to deal with. How do you dock with a rotating structure? Safely approaching a rapidly spinning tether in orbit is not an easy task. Then you have to match rotation, unless there's a non-rotating hub, which would result in enormous complications to the structure. How do you move it / do stationkeeping? All thruster burns now have to account for the structure's angular momentum. And stationkeeping will be more of an issue that with 'normal' spacecraft because tidal effects will make a tether in orbit want to wobble. Additionally, there may be electromagnetic drag to deal with, and the associated voltage buildup across the structure that you'll need to find a way to safely discharge.

And then there's space debris. If the cable is damaged, you either get flung off into an unrecoverable orbit, or you hit the atmosphere and burn up.

So, all in all, hardly surprising that NASA hasn't bothered yet.
Are there any other apps / methods that you can recommend as good examples of how to learn a language? I'm trying to learn Lithuanian (GF), and there is very little material available, so I'm looking to build something myself.
Why no 2001-style rotating orbital station? Probably because it's not easy, it'll be big and heavy, and Big and Heavy and Orbital is definitely not cheap.

Moving mass — people moving around — within a rotating structure will transmit vibrations throughout the structure, even with mass dampening.

As an example of the considerations around vibrations within ISS, astronaut Sunita Williams indicated that the ISS exercise equipment is intentionally isolated from the ISS structure, as the vibrations of the crew members exercising causes problems for the solar arrays.

Source: http://www.youtube.com/watch?v=doN4t5NKW-k
You can do anything you want to if you just try.
Dropcam, San Francisco, CA. Full-time and intern (onsite only). https://www.dropcam.com/jobs

Dropcam's cloud service accepts more incoming video per minute than YouTube. We make a Wi-Fi camera and cloud service that allows users to monitor their home or small business from anywhere in the world using apps for iOS, Android, PC, and Mac.

We have some of the most challenging software engineering problems in the world, e.g.:

* streaming low-latency, live video over consumer wifi networks
* storing up to 30 days of video per camera
* analyzing video for significant events (computer vision)
* refining a user experience that "just works" whether you are sharing babies'
first steps or catching a burglar (or monitoring your pets, keeping an eye on
your small business, providing in home medical care...)

Here's just a couple of the articles written about us this year:

http://allthingsd.com/20121227/the-story-of-dropcam-a-little...

http://www.nytimes.com/2012/08/11/nyregion/an-improvised-tra...

We are hiring software engineers and product managers (both software and hardware). Dropcam is an amazing place to work. Why? Here are just a few reasons:

* Spend more time working on the product vs being in meetings.
* Every employee can access our sales dashboard so you know how the company is
doing/growing. (5x annual revenue growth in 2012)
* We bring in catered lunch every day but not dinner, so you don't feel bad going
home to recharge.
* Like big data? We measure it in Petabytes, not Terabytes (unlike your average
"web scale" startup :)
* I personally fly employees on helicopter tours of the San Francisco Bay (you
can even bring friends). It's a lot of fun!

What more would you like to know? Drop me an email at my first name @ dropcam.com or apply at https://www.dropcam.com/jobs
Offering loans at a 330% interest rate is "helping the poor", sounds like exploitation to me. Payday lending has been outlawed in many states due to the fact that it exploits poor people and entraps them in a cycle of high interest debt. The founder of ZenFinance acknowledges that fact in one paragraph and then touts working with a company that engages in those unethical practices in the next. The following states have outlawed payday lending:

Arkansas,
Connecticut,
Georgia,
Maine,
Maryland,
Massachusetts (not strictly illegal but highly regulated),
New Hampshire,
New Jersey,
New York,
North Carolina,
Pennsylvania,
Vermont,
West Virginia.

Source:wikipedia
Developers begin seeing new Apple iPhone hardware and iOS 7 in usage logs
So obviously I am only speaking through assumption here, but isn't the Chinese character set almost entirely orthogonal to the language? That is, very little is lost by learning it through Pidgin? The extra year it might take to fully memorize the Chinese characters would seem to have only a glancing effect on how much conversational Chinese you could speak
No, it doesn't. "Down" is defined by the direction of acceleration, so saying that the centripetal gravity would be somehow sideways doesn't make sense; your body has no means of telling the difference.

What your body can sense is the presence of coriolis effects.
SEEKING WORK. Data analysis / optimization / predictive analytics. I'm a data analyst (Python, R, STATA) with strong functional analytics programming skills (Python, PHP, javascript, SQL). Past projects: full hadoop-based analytics stack design, dashboard development (d3.js), designing events libraries, A/B test design (architecture), data set analysis. analyticsprogrammer@gmail.com
I think you're making a big mistake.

During a previous relationship I was in, it turned out she had borderline personality disorder; it nearly destroyed me.

Be careful, that's all I can say.
I like it - And I would use it. I didn't know many of these existed.
Or in other words, Malicious Obedience?
SEEKING WORK, Remote or in Sweden Skills includes Django, Python, JavaScript, jQuery, HTML5, CSS3 and Linux. Would like to pick up some cool Django projects while I'm bootstraping my own product. More info and contact: anderspetersson.se
Lucidchart - Salt Lake City, UT

Lucidchart is a rapidly growing tech startup looking for great backend software engineers to join us at our headquarters in Utah. At Lucidchart, we build killer graphical web applications requiring highly available, secure and scalable backend services. Talent and ability to learn are more important than years of experience. You may have seen Lucidchart demoed during the second Google I/O 2012 keynote:

http://t.co/sd6GgZvy

We're hiring BACKEND SOFTWARE ENGINEERS. Lucidchart runs with various decoupled services in a Linux environment using Scala, PHP, MongoDB and MySQL. At Lucidchart, your responsibilities would include enhancing existing services, building new services, integrating with 3rd party applications and ensuring services are highly reliable and scalable.

Requirements:

* Talent

Recommended experience:

* Have built large products / applications

* Scala or Java

* PHP

* MySQL or other relational database

* NoSQL databases (MongoDB especially desirable)

* Opscode Chef or Puppet

* Cloud computing (AWS)

We're also hiring FRONTEND SOFTWARE ENGINEERS. We build killer graphical web applications that push the boundaries of what's possible in the browser. Lucidchart is powered by one of the largest Javascript codebases on the Internet, optimized so that the user experience is indistinguishable from an installed native application. Come help us show the tech world what can be done on the web.

Requirements:

* Talent

Recommended experience:

* Have built large products / applications

* Javascript

* Google Closure compiler/library

* CSS/HTML/DOM manipulation

* jQuery

* node.js

* Native app development on Android and/or iOS

* Facebook APIs

All applicants email resumes to jobs@lucidchart.com.
Day One Cartoon
Seeking work: I have a lot of experience with web technologies Ruby on Rails / ASP.NET MVC etc,. Looking for challenging work requiring use of Go. About me: http://minhajuddin.com/about .
Correlations – Twitter Sentiment, AAII Sentiment Survey and the S&P 500 Index
There is something very, very, very wrong here when the sister of a tech star states: “I’d have taken out another payday loan.”
Thank you for bringing this up. It's often looked over from those not experienced with mental illness. A close relative has been affected by mental issues and is too paranoid to get help from it. She's still well enough to talk to me and remember who I am, but is so far in another reality that there is nothing you can do to help. It's a terrible illness and for a lot of people it's all downhill.
Podcast-focused services like Popup Chinese and ChinesePod get results.

http://popupchinese.com/

Steve Kaufmann's product is one of the very few that supports actual reading. His Youtube channel is also excellent.

http://www.lingq.com/

Oh, and AllSetLearning picture book reader is definitely worth downloading! They also have a good pinyin app.

http://www.allsetlearning.com/products/chinese-picture-book-...

That said, if your goal is learning Lithuanian rather than product building, you don't need an app. You need books and audio. For an overview of how to use them, try reading Barry Farber's How to Learn Any Language. Here's my own summary and results using his strategies: http://toshuo.com/2007/learn-a-language-by-taking-advantage-...

Disclosure: I'm friends with John from ASL and Dave from Popup, but my recommendation is genuine. The reason we became friends was our mutual interest in Chinese and blogging about our language learning years ago, before there were many others doing so.
SEEKING WORK - Remote

Primarily specialize in game development and windows apps. Some of my relevant buzzwords:

• C# (+ WPF), C/C++, x86 assembly
• DirectX, OpenGL
• Git, Mercurial, SVN
• HTML, LESS/CSS, CoffeeScript
• PostgreSQL, MongoDB

Contact me at gerald+hn at cloupp dot com. I'm based in the USA.
Similar to lendingclub and prosper except shorter terms and higher risk in terms of the risk analysis, not in terms of the social lending part.
This is also why the Senate can't start tax authorizing bills... The states weren't suppose to be able to raise taxes on the people for feudal matters, only the people should be able to do so through their representation in the federal government, the House of Representatives. I think we could fix a lot of issues by repealing the 17th amendment.
SEEKING WORK - SF

Full stack Ruby engineer. Backbone.js, AngularJS. Have also done extensive FB app development. Can do markup as well, slicing PSD's into clean HTML/CSS. I would love to chat about your project and needs! bkoonse@gmail.com
SEEKING WORK - Remote with up to 50% travel (I'm based in Europe, but can work EST working hours).

I am a full web stack engineer with 12 years professional experience. I recently worked as CTO & Product Director at a small startup. Previously, I worked as Lead Software Developer at a mid-size company (sold for 9 digits at that time). I am happy with similar position as my last one or with 100% hands-on technical role as senior software developer.

I have lot of experience with various projects. I worked on web applications, enterprise intranet software, social websites, and so on. I am great in both solving little but tough problems and designing and implementing architectures using physical and cloud based servers, SQL and NoSQL databases, integrating various APIs, architecting applications to work under significant load and ensuring following patterns and best practices. My only drawback is that most of my backend experience is in PHP which is not that popular among HNers these days. But I learn quick and I'm always hungry for new experiences and knowledge. I have lot of experience in leading and coaching small teams, including remote/distributed teams, and leading projects.

In the last three years I started working on UX and interfaces, designing products, not only developing them. If you don't have resources for dedicated UX/UI person, I'm your go-to guy and can connect graphics designers with developers to build a great product.

I'm seeking remote or partly remote freelance or permanent work between 4h/wk and full-time. For full-time, I'm happy to travel worldwide as long as I spend at least 50% time at home.

http://www.linkedin.com/in/bartekr

Please contact me at bartus79 at gmail to discuss how I could help your company.
Perfect Audience (YC S11), San Francisco or remote, Full-time.

We're looking for full-stack developers. Perfect Audience is a self-service ad platform that lets businesses get more sales and conversions by retargeting lost visitors on Facebook.

http://perfectaudience.com

What we are looking for:

* Ability to architect, develop, and test key infrastructure

* Understanding of performance and design tradeoffs, without compromising quality

* Experience scaling up webapps and services for rapid growth is a plus

We offer a generous salary and equity grant, free lunches, your choice of snacks in the kitchen, and a desk in our sunny, beautiful office in downtown San Francisco.

Office pic: http://i.imgur.com/aL4Mc.jpg

Want to know more? Write to hello@perfectaudience.com

P.S. If you don't know advertising, that's OK. The ad stuff can be learned. Being a great developer is much harder to "pick up."
I meant as _implementing_ an editor, like Paredit. If you're implementing Paredit, you need to find the parens in order to manipulate the current node. I just meant it's slightly easier to write such an editor. (∩▂∩) At least, I think it would be. I haven't tried!
The new blogger makes the reading impossible on my device.

I had the idea of 3D life where every other cell is unused (chess-like); then every cell has 8 neighbors, but in 3D.
But it seems that life rules make this space stable. Didn't experiment with other rulesets.
Invincea Labs -- Fairfax/Arlington

http://www.invincea.com/the-invincea-team/employment/

i have a bunch of immediate openings.

i'm hiring for two "research engineer" positions, two "senior research engineer" positions, and two "principle research engineer" positions. think "software engineer who loves solving science problems and dealing with shifting requirements". C, C++, Python. algorithms, malware analysis familiarity, automation, etc. US citizens, clearance and/or clearable desired. no relo assistance.

i'm also seeking an IT person: sysadmin, devops role. clearance needed, experience in working with secured equipment (e.g. in a secure facility) strongly desired.
Well, I use the same method until I heard the DCIntrospect library (https://github.com/domesticcatsoftware/DCIntrospect)
Cyclestreets route planning is simply amazing at its best
and has mobile web and apps too:

http://m.cyclestreets.net/

Base data comes via OpenStreetMap but various Uk cycling orgs and quangos have contributed too.
RoundCube is fine. I wonder though, why there isn't a good webmail client in Python or Ruby.
So this is, if i'm not missing anything major, lisp with indentations instead of parentheses. Funny, I spent my new year's eve writing a script to turn any Photoshop layout into an atlas with JSON metadata sufficient to rebuild the layout in code.

No regrets :-)
WebEngage, Mumbai, India. Full-time Java developers - http://www.linkedin.com/jobs?viewJob=&jobId=4390398&...

We are http://WebEngage.com
OpenID with host identifiers? You want to create a directory service? Why? Why have others failed on this?
Research says, before the Job Interview: Stand Up Straight and Do Some Yoga
Show HN: Content Marketing App
Wouldn't it be easier to use some kind of formal grammar and a parser instead of the stack based thing you describe? In that case, lisp is probably one of the easiest languages to parse since it is all parenthesized s-expressions and not whitespace dependent at all.
As a parent (of now adult children) I like these rules, but can see pushback potential from today's kids. In retrospect, I wished I had, in particular, pushed for #3, having experienced calling the phone I was subsidizing and getting only voicemail.

And I like #6. and #7 is what parents should be doing.

The password thing (#2) was not something I would ask, nor the other privacy things, as I assumed they already had enough judgement by that time to have their own privacy. In fact, my Facebook rule for my kids and their peers that I know has always been that they invite me to be friends, not the other way around.

And #15, #16, and #17 are things that should be part of family life already.

#11 might be a good idea, but what adults even do that? As a parent, if you expect a behavior from your kid, the best way to get that behavior is by setting an example.
The Asian Innovation Century, Again
This reminds of what Opera did a few years ago. Announcing "We have some secret project that will change the web forever!" then released a new browser with an HTTP server embedded into it that was about as popular as <make up your own thing here>.

I guess the most likely thing here is the Ubuntu TV?
Rethinking Passwords
It's time for Football Moneyball
Liverpool vs Sunderland Preview
Kanada Hakkında Bilmedikleriniz  Neden Kanada'da Eğitim Almalıyım
The Ladders - New York City

Looking for full time on-site developers.

We hire passion, not skills. If you'd describe yourself as a polyglot, prize code quality and clarity, please do get in touch.

Some tech we use across our company:
Java, Scala, Backbone.js, Storm, RabbitMQ, Puppet, Sass, Responsive Design, Objective-C and on and on.
Ideal candidates probably have at least 5-7 years experience

Here's the "job description", if you are interested, you can email me directly: jconnolly@theladders.com

--

We’re looking for a few good programmers to join our team and help us achieve our mission of “the right person for the right job.”

Instead of giving you a list of buzzwords to describe the role, we’ll tell you about a project we started recently:
A few months back, a small team of engineers and designers at The Ladders got together to design a new product. We started off by interviewing some of our customers to learn about their needs. Using that information, we held design studios and brainstorming sessions to flesh out what the actual features and user experience would be like.

On the front-end, we decided to build a new Javascript-powered rich UI using responsive design techniques. Many people are working on responsive design for content-based sites, but few are doing it for browser-based applications.
On the back-end, we designed an Event Driven Architecture that makes use of Event Sourcing. Instead of updating a relational database in-place when things change, we store a series of discrete application events. We can then replay those events to create the state of the world at any point in the past, right up to the present. (Yes, we’ve built a time machine!)

Does this sound like the sort of thing you’d like to do? If it is, we’d like to hear from you.

In return for your passion and commitment to code quality, you’ll enjoy an awesome work environment with perks like: Unlimited vacation days! Yes, unlimited! Quarterly hackathons A game room and a well-stocked kitchen Exciting events including holiday parties, picnics, talent shows, pumpkin carving and more Company sponsored athletic teams Competitive salary, bonus and stock options Health/Dental/Vision Insurance, 401K
Get Your App Ready for Rails 4
I highly recommend looking into the work of Paris Williams:
http://brainblogger.com/2012/08/07/schizophrenia-and-psychos...
http://brainblogger.com/2012/06/23/is-schizophrenia-really-a...
http://brainblogger.com/2012/05/29/full-recovery-from-schizo...

He also has a book called "Rethinking Madness" which is amazing.

Basically, there is no medical evidence for classifying schizophrenia as a disease. He believes that it is a state the mind creates for itself when it's surroundings stress the person out too much. There are very high recovery rates for schizophrenia in 3rd world countries, which he believes is due to the lack of medication.
I love the idea. My thoughts about the app.
1# where do you get the information for doing the grammar and pronunciation?
2# what is your end goal for producing this?

The only consideration I could say is to high a higher level view of the main application screen. Something that allows you to jump to levels/tutorials more effectively.
Radius Intelligence, San Francisco, CA.

Full-time -- on-site only. INTERN and H1B welcome. Principals only please.

Radius Intelligence provides data and tools to help companies reach over 20 million small businesses. Consider that many companies you read about here on HackerNews need to effectively reach these companies to sell to them. Payments companies, deals companies... you get the idea.

The reason I joined Radius is two-fold: I want to work on products that can benefit small businesses and I like the fact that our product directly benefits from our work with data. We're selling the data we have with a cool web application, not using data science to get a 1% lift of clicks on the blue button.

So we're looking for solid software engineers to work on all sorts of problems. We have a sophisticated web application implemented in Python and Javascript and we have our back-end data processing tech which is implemented in Java with Hadoop, Hive and HBase. We have paying customers, but we're on the ground floor with both -- now is the time to join us and make a huge impact. We also need an engineer who is interested in test and performance.

Drop a line: jobs@radiusintel.com . Thanks.
TMP Worldwide - New York, NY

We are looking for a senior developer to join the architecture team. We get to do some pretty awesome things on this team like prototype new applications, research new technologies and develop frameworks and back-end systems used by all new TMP applications.

We are a .Net shop at heart, so we definitely want someone who knows C# well and has an understanding of how the CLR/.Net runtime really works. We also use tools and frameworks like MVC4, NServiceBus, Entity FW, Backbone.js, Solr, MongoDB, SQL Server 2008/2012.

I'm not a recruiter or HR person, just a developer on this team trying to help find the right person to work with. It's a great environment with a lot of really challenging fun work in the world of recruitment software.

If you are interested shoot me an email: Daniel.Battaglia@TMP.com
I'm putting polishing touches on http://wonderwheel.fm and I would love to build another Spotify app.

In general, I'm interested in projects with novel UIs, interesting interactions, and new ways to present information, like I would totally love to work on http://moonbase.com

h@veldstra.org
I am going to ask a honestly stupid question. What is going to happen to ZFS? Sorry if this is Slightly off topic. Although the comments has already started discussing on it.

The OpenSource version of it, or the BSD version of it is only up to v28. And it seems after that Oracle is no longer putting out update as open source and what will happen after that? Disparity between Oracle version and BSD version? And are features still being developed? Most of limitation listed in Wiki hasn't change at all for the past years and are still listed as under development.