jkeisling/hacker-news-corpus-2007-2022 huggingface dataset:
Hall effect krypton plasma thruster passed tests
http://www.naukawpolsce.pap.pl/en/news/news,398704,polish-plasma-thruster-prototype-for-space-probes-already-operational.html
Previous article about the engine (from 2011) http://www.sciencedaily.com/releases/2011/10/111006084023.htm.<p>Video from the tests: http://www.youtube.com/watch?v=RP48Eb4lr54<p>Surpsisingly engine worked at the first try in simulated space conditions :)<p>Engine has mass of 4kg, and length of 12 cm. It' meant for adjusting orbit and manouvering in space of probes with mass around 100 kg.<p>It uses krypton (33$ per 100g) instead of Xenon (120$ per 100g) as propellant so should be much cheaper, while it's simillary efficient as other thrusters.
Anyone planning to attend Google Developer Day (Munich)?
http://www.google.com/events/developerday/2010/munich/
Its on 9th November (Tuesday) in Munich. HN BoF, anyone?
Taming the AWS API with statistics 
http://blog.cloudfoundry.com/2013/06/18/dealing-with-eventual-consistency-in-the-aws-ec2-api/
Having all this data at hand has allowed us to create better algorithms for waiting for AWS resources. For example, when we create an instance, we know there isn’t any point in checking until around 20 seconds as it is the earliest we see a newly created instance running, and after 90 seconds it is highly unlikely it will ever run, so we can focus the waiting and polling around the sweet spot on the curve.
Google trends, innovation vs profit
http://www.google.com/trends/?q=innovation,+profit 
Call me new-age whatever. Maybe its the end of the shareholder era we're seeing. Watching a bunch of stuff on 2012 and what it implies. Call me out for being wrong, and I want you to, or at least try, but the past years have marked a shift in thinking. I'm thoroughly enjoying a pleasant shift of focus and how new values are being laid upon good product over profits.
Ask HN: What to learn in 2015? What are you planning to learn?
What tech and non-tech (non tech, but related to software dev) skills are you planning to learn this year? What is your advice/prediction on skillsets, that will help someone further in his/her career?
Show HN: GameSynch.  A nodeJS HTML5 Multiplayer Game Synching Service.
http://gamesynch.nodejitsu.com
When I first built this it was missed, so hopefully with the new ShowHN popularity I will be able to share it with you.

In GameSynch all the players are synched to play the same game. When the timer runs out, the next game starts. Using the chat room feature you can vote to EXTEND or SKIP the current session.<p>All feedback appreciated - thank you!
New way to do Customer Development/Interviews
http://www.tetatet.me
I guys,i thought it is the right place to post this.We built a platform which will help product owners to validate their assumptions by having face to face conversations with their users/potential customers.You will just create an inquiry about who you want to meet and users will come to your office.
Sign-up to get early access to beta and we offer free interviews for early adopters!
Co-Creator of Tetris killed his family for his business woes [1998]
http://en.wikipedia.org/wiki/Vladimir_Pokhilko
http://www.sfgate.com/news/article/Pushed-past-the-brink-3305027.php
Lefora launches next generation forums for free
http://www.lefora.com
Figure this would be quite relevant to any startups that need collaborative tools. A new startup I saw up on techcrunch is offering up super simple forums and many to many group discussions for free.
Ruby: Enumerable#sum is slower than Enumerable#inject
http://afewgoodlines.com/post/911224306/ruby-enumerable-sum-implementation-and-performance
2x slower
Show HN: League Legacy – Manage Your Fantasy Football League
https://leaguelegacy.io
Hey all, this project may not be that relevant to many or most here but I'm excited to share it either way. Like many here, I'm constantly working on side-projects and for the most part my interest in them fizzles out once I get past the interesting development part, or at least before completion (and the dreaded "marketing").

This is one of the first projects in a long time where I've been excited to work on it daily and see it through to launch. And that's mostly because it's a project that I built primarily for myself. Sometimes the simplest and obvious advice that we overlook because it seems too easy to solve our own problems - actually works out - who woulda thought?

So on to the project itself - League Legacy is an application to track and manage your Fantasy Football League history. Anyone who plays in a home league or a league with buddies for several years like myself may like to track stats historically, league records, how you compare vs your friends, etc. In the past, I've tracked all this manually in excel and I've seen several examples here of others doing and sharing those sheets over time. It's been a lot of fun, but well, excel is excel.

So I built a tool that does all of this for you and hopefully is a bit nicer than excel and is something I can continue to iterate on overtime and support more leagues/sites and add additional features.

You can automatically import your league history from Yahoo or Sleeper, and also manually add season data from other sites that we don't support yet, too. The site will handle displaying all your historical seasons, generate a record book for you, you can see member vs. member stats and matchups, you can even track your league finances through this tool if you'd like.

The goal is to (1) continue to fix as many bugs and support as many leagues/variations as possible; (2) continue to build out the historical tools and stats; and (3) build out 'in-season' league management tools and features through-out the season.

Anyways, would love to get some feedback and suggestions, and more importantly bug reports. This is an early tool, so undoubtedly there will be some bugs and issues - especially considering how much variation there may be in fantasy league setups, but if you just contact me I'll work on fixing asap for your league.

If anyone is interested in checking this out and providing some helpful feedback, you can check out the demo or the full-site. Thanks!

https://leaguelegacy.io
AirHelp: Find flight compensation in your mail
https://app.getairhelp.com/
We launched a new feature at TechCrunch Disrupt that lets you search your mail for itineraries that make you eligible for compensation. Still in Beta
Going to a Trade Show? Leave the Gimmicks at Home and Get Down to Business
http://blog.voltagecrm.com/going-to-a-trade-show-leave-the-gimmicks-at-home-and-get-down-to-business/
It’s pretty tough being in the sales business and not having to attend a trade show or two in the run of a year. It’s all about wheeling and dealing, schmoozing and boozing, and trying to outshine the competition.Trade shows exist on a spectrum from the Las Vegas extravaganza to the Springfield county fair. No matter the size and scope of an event there’s a few things that never change for most sales professionals…
White House peititon to end robo-calls or provide physical location
https://petitions.whitehouse.gov/petition/stop-xyz-card-holder-services-calling-robo-calls-or-provide-their-physical-location-public/dmBt0QLW
WH petition to help end robo-calls or provide the physical location so the American people can protest the call centers in person.
HTML5 vs Newton
http://www.flickr.com/photos/splorp/sets/72157624225682388/
This series of screenshots shows Apple’s questionably named HTML5 and web standards showcase pages displayed on a Newton MessagePad 2100.
An amazing multiplication number puzzle
http://mathema-tricks.blogspot.com/
If you multiply two five digit numbers you can get the answer 123456789. Can you guess the two five digit numbers?
Deep learning to detect Covid 19 / pneumonia cough signature
Is there an opportunity to develop a prescreen to potentially detect covid 19 / pneumonia through a deep learning / ML model trained on the cough pattern in patients ? Is there a possibility of developing this capability?
The Idiot’s Advantage
http://www.slicingpie.com/the-idiots-advantage/
I used to own a small company in Kansas that, among other things, sold North Face jackets to ski teams and groups of mountain climbers. I liked the product and enjoyed selling it. It was cool. One day I called them up to place an order only to be informed that my account was no longer active. I was being terminated as a reseller. There was a local retailer in town that had been with them longer so they cut me off.

Five minutes later I got a call from a customer wanting to place a fairly sizable order. “No problem,” I told them having no idea how to fulfill the order.

My search for an alternative supplier was fruitless. Patagonia? No. Columbia? No.

I didn’t have a retail storefront, I didn’t have an established catalog and the Web didn’t yet exist. I was a young, inexperienced college student and I was turned down by pretty much every supplier I called. So, when my client called to add a few more pieces to the order I again said, “sure, no problem.”
Back in Kansas, when I was passing out promises to deliver outerwear to my customers I had no idea what it took to design a new clothing product, let alone how to manufacturer it. So, armed with a total lack of understanding, I opened the Want Ads to see if I could find a used sewing machine (not that I knew how to actually use one).

Soon I found a truckload of equipment from a retired tailor, I found a woman who could sew, I found several bolts of fleece material and I was given plenty of zippers, grommets and those little spring-loaded bungee-chord gripper things (I still don’t know what they were called). I was now in the outdoor clothing manufacturing business. It took less than a week and I had no problem filling my orders. This is the kind of thing you can accomplish when you have no idea what you’re doing. It was easy, but if I had known how difficult it should have been, I never would have tried it.
Nolan Bushnell on Google's Self-Driving Car
http://www.inc.com/nolan-bushnell/googles-car-will-change-the-world.html
Google's self-driving car will transform the world we live in, the founder of Atari says.
Power with control… control structures and abstractions in Scala
http://scalabound.org/?p=120
Part of a Scala 101 series, with this instalment covering built-in control structures, List creation, iteration and common List operations, to make a Scala journeyman immediately productive.
Ask HN: Nearly a year later, how has tech helped with Covid-19?
Around march/april, I remember all the major players in tech talking about how they could help with covid-19. I remember Apple, Google, and even folks from YC talking about that. Since then I've seen the tracking work, but nothing else. How did tech contribute to fighting covid-19?
Getting around Regulation D?
It seems that those of us who aren't yet wealthy are very unfairly kept out of the angel investing market. I might not have $1m in assets, but I have the capability to make two $25k investments per year. It's sort of bullshit that I'm not legally allowed to.

How do us poor folk get around this law which was written to protect a generation who are mostly dead or will be soon?
Linus Torvalds: Android copyright violation claim is "bogus"
http://www.networkworld.com/community/blog/linus-torvalds-android-copyright-violation-cl
Linux kernel creator Linus Torvalds has scoffed at a new claim that Android violates the Linux license. Google's use of the Bionic Library does not result in a deriviative work that has to be licensed under GPL, as some lawyers are claiming, Torvalds says.
"It seems totally bogus," Torvalds said. "We've always made it very clear that the kernel system call interfaces do not in any way result in a derived work as per the GPL." While some claims against Android can be dismissed outright, Google and its partners still must fend off patent lawsuits filed by rivals Microsoft and Oracle.
Autobiography of one of the first female "computers"
http://tsup.truman.edu/item.asp?itemid=480
Shameless plug... Betty is my great-aunt, but an absolutely amazing woman who was at the forefront of pioneering the idea of "computers." Knowing her was a treat. She never hesitated to share her mind and was rooted in her midwestern heritage. Unfortunately, I didn't have the chance to talk "tech" with her. She was focused on connecting with her family...her roots. Her legacy will live on...
Will Boston ever catch up?
http://www.boston.com/business/technology/articles/2007/07/22/will_boston_ever_catch_up/
This was in yesterday's Boston Globe business section, about how Boston VCs are comparatively clueless about consumer Internet startups, relative to Silicon Valley.
Why The Educational System Is Not In Place
http://www.entrepreneur2be.com/2008/06/03/why-the-educational-system-is-not-in-place/
Just to point out - i am not saying that people shouldn't learn at school. Just that they are learning a lot of useless stuff instead of which they should be learning how to use the info they know to become successful.
Show HN: I'm Building a Step-By-Step Guide to Learning Programming
http://www.codeconquest.com/
www.CodeConquest.com is a site I launched last September and have gradually built it up since. I don't believe there's any other site like it, and so I want to turn it into the Internet's go-to resource for beginner and would-be programmers.

I plan to keep it up-to-date with extensive scope and depth, covering everything a beginner needs to know to get started in programming. In other words, I want it to be her "overarching" resource - the place where she finds the right training, learns what to do next when she's got it etc.

Ultimately, I hope to get it to the point where it’s so useful that programmers and educators will be thankful for it and will want to recommend it.

I don’t think it’s at that stage yet, but that's why I'm posting it here. I want to get YOUR opinion and suggestions. What's missing that needs to be there? What do I need to do to make it a website that you'd recommend?

www.CodeConquest.com
Ask HN: Best way to manage all of your startup's accounts?
It's really starting to be a pain to manage and remember all these accounts (Twitter, Github, Google, Slack), is there anything that makes this really easy?

It's annoying to have no secure, central place to store these.
Ask HN: Are there privacy-focused emailing services?
Hi HN,

I'm part of a non-profit sport club that uses a Constant Contact for emailing service but some members are annoyed about the use of tracking links (both philosophically and because the resulting links being blocked by Pi-hole or other tracking blockers).

Are there any emailing services that don't track recipients?

Thanks in advance!
Spotify client released for Symbian
http://www.spotify.com/blog/archives/2009/11/23/spotify-for-nokia-and-more/
Any experiences? At least here in Finland people have been waiting for this.
Just in time for Xmas: Inside the Sony Playstation Vita
http://www.eetimes.com/electronics-news/4233573/Inside-Sony-s-Vita--IBM--Toshiba--Avago
The big winners: Avago, IBM, Toshiba and Qualcomm
Why Gamify DevHub? 
http://geoffreynuval.devhub.com/blog/523753-why-gamify-devhub/
Post the launch of the brand-spanking new DevHub.com system on July 9th, we've had a lot of inquiries as to why we introduced game elements into our free website builder (most people love the idea, but a number have been curious as to how we arrived at it). This post breaks down some of the thought processes that went into making the decision to gamify DevHub...
Westbound and Down: Why Things Are Looking Up for Paul Stamatiou.
http://techdrawl.com/News-Post/Tech-Transfer/Westbound-And-Down-Why-Things-Are-Looking-Up-For-Paul-Stamatiou
In what is sure to become one of the best tech transfers the South has made to the West Coast, we're equal parts sad and happy to be passing one of Atlanta's tech superstars to San Francisco. We (exit) interviewed Paul Stamatiou on his last day in Georgia to discover why he is moving and to hear his thoughts on the future. We then rolled over to Strongbox West to capture the community's goodbye wisdom at a 'special edition' of Startup Drinks. Enjoy the video!
Gh: fast GitHub command line client in Go
https://github.com/jingweno/gh
I am trying to port hub (https://github.com/defunkt/hub) to Go (https://github.com/jingweno/gh), not by any chance better yet, but feel free to provide any feedback :)
Speed up jQuery event delegation 100-fold. What's the catch?
https://github.com/josh/jquery-selector-set
based on Github's blog https://github.com/blog/1756-optimizing-large-selector-sets
Ask HN: How best can we market our new social sports game?
We're just two guys who spent a few months building a casual football strategy game. It's sort of a cross between Tecmo Bowl, Fantasy Football and Poker. We just launched it, and we're having a hard time getting anyone to notice it. We think it's innovative and fun, and we'd love to get some good feedback, but so far it's been hard to find users.

Anyone have any suggestions on how to market sports strategy games?

If anyone here is into football, we'd love to get your feedback. The game is at http://www.ffthrowdown.com/.
Show HN: AngelHack Project - ConfessionCall.com
http://confessioncall.com
Everyone has deep dark secrets. Now you can share them, anonymously over the phone or via voice plugin, and have the world absolve or condemn you.

This was built by a distributed team of three in 30 hours this weekend at AngelHack in SF, with all the coding done by HN user ivanstojic, with design work by Ed Lea in England, and some random contributions by my non-technical self in San Francisco.

Would love to hear what you all think, and even better what terrible secret you need to get off your chest.
Social Bookmarking 2.0 - Diigo Sets The Standard for Others?
http://bub.blicio.us/?p=804
A good online productivity tools.
Ask HN: Programming jobs in Utah?
I'm curious if any Utah hackers know of good job leads in Utah (specifically in Salt Lake City or the surrounding area). Thanks in advance for any help :)
pg_simple: simple wrapper for Python psycopg2 with conn pooling
https://github.com/masroore/pg_simple
The pg_simple module provides a simple yet efficient layer over psycopg2 providing Python API for common SQL functions, explicit and implicit transactions management and database connection pooling for single and multi-threaded applications.
Selection Of 45 Sites That Are Neat Thanks To jQuery
http://www.designyourway.net/blog/inspiration/selection-of-45-sites-that-are-neat-thanks-to-jquery/
jQuery is a tool that almost every webdesigner uses nowadays and in most cases, jQuery plugins give a certain feel to the site on which is used, making it more friendly for the user but also more appealing thanks to its dynamic features. It is a pleasure to navigate on these sites below thanks to jQuery and you will discover this soon. Make sure you check not just the front page of these sites.
SEO for CEOs
http://blog.kissmetrics.com/seo-for-ceos/
A C-level recap of the basic building blocks of SEO
Ask HN: Lead asked about corporate accounts.
I started a "startup" 3 months ago and I've been plugging away at coding and marketing it on the side. I've got a couple of paying customers but things are still pretty raw.

Today a person reached out to me to ask who to contact about corporate accounts. I feel like I need to take advantage of this small opportunity but I'm not really sure how.

It would take me 2 to 4 weeks to have the app ready for enterprise use (as I imagine it) at even the most basic level.

What's my play?
Ask HN: What are your major pain points?
I like how toutapp.com solve the pain of sending out emails that I'd usually copy-paste and change to certain groups of people.

One of the areas I think are managing your knowledge base/faq. Getsatisfaction/UserVoice do a poor job at this in my opinion, but I think that TenderApp is on the right track. Not sure if there's really room for one more.

What are your major pain points?
Show and Tell HN: GitHub on iGoogle
http://www.google.co.nz/ig/adde?hl=en&moduleurl=labs.metanation.com/github-google-gadget/legacy.xml&source=imag
For all you GitHub hackers out there. And if you haven't tried GitHub for work/fun/private/public projects, you should!

If you'd like to contribute, you're welcome to fork the repository (on GitHub, of course!) at:

http://github.com/Aupajo/github-google-gadget/tree/master

All feedback welcome :)
Show HN: Anzu – Building Blocks for Product Teams
https://anzuhq.com/
Hello Hacker News! We’re Bruno and Tim from Anzu [0]. We’re building a platform that makes it easier to build products by providing building blocks for repetitive work (think user management, services, databases, workers, error reporting, user analytics, and more).

We believe that velocity is one of the most important goals for companies in any stage, so we’re building the tools for teams to reduce friction and move faster.

When you’re in the early days of building a product, time is your most valuable asset. Getting to validate your idea quicker gives you the insights to build what people want. On the other hand, few things are as threatening to your motivation as having to set everything up to go live.

Today, we’re excited to announce the first step in the long journey to reach this goal: User Management. Pretty much every product requires users to create an account and sign in, but customers expect a variety of sign-in options, including social networks and enterprise connections (SAML).

With Anzu, you get a hosted auth page where your users can sign in with Google, GitHub, and Email (using magic links or a temporary code), with more auth providers coming soon. Your application is notified about new signups and can persist users in your database, while Anzu User Management takes care of authenticating users and issuing short-lived access tokens. Using Anzu, you don’t have to spend days understanding OAuth and sifting through auth provider docs — you can have it all set up in under an hour.

Building blocks offer a unified integrated experience in one platform, but also give you the unique possibility of mixing and matching: You can choose which parts of your stack you want us to manage, and you can always switch to a different provider.

While user management is the first block, it definitely is one of the most important ones to get right. When your users are in the same place as all other parts of the product lifecycle, you get unmatched context to work with. Track errors back to users, enrich metrics with session data and link customer support with user activity across the platform.

Of course, there are specialized vendors for most of the areas we’re targeting but with those, you end up with the time-consuming work of integrating different services, understanding data models and concepts, and trying to make everything work.

With Anzu, we want teams to spend less time choosing providers and gluing it all together — we provide everything you need to build reliable products that grow with your team.

We understand that we’re working on highly-sensitive areas of your product and have to build trust first, so we’re committing ourselves to build in public, using and sharing open source tools, and enabling users to run Anzu on their own infrastructure. We’ll be offering a self-hosted option [1] in the coming weeks, based on measured interest (please reach out if you’d like to run Anzu on-premise!).

Feel free to ask us anything and let us know what you think!

[0]: https://anzuhq.com
[1]: https://anzuhq.com/docs/platform/self-hosted
Show HN: iOS app to rent out your driveway
https://testflight.apple.com/join/1BsZKeIO
Heya! I built Kotse, an app that finds driveway parking for tourists. You can list your driveway up for short-term rentals, or book them as a guest if you're going to big events, cities, or even the beach. We're looking for feedback and beta testers. What do you guys think? Thanks!

(p.s. apologies for the repost if you're seeing this again - wondering why my post keeps getting flagged. Is looking for beta testers not allowed? If so, I'll stop :D )