skysight-inc/HackerNews huggingface dataset:
Well, that's not entirely true. The lattice structures are internal to the object, and substitute for solid infill. Commercial FDM 3d printers use a crosshatch instead of solid fill, and the reprap toolchain has that as well as a number of cool ones like hexagonal infill. So you have lattices instead of solid walls in the microstructure. With powder printers, such as the metal printers described in the article, you can form hollow areas of any shape since the raw material itself acts as support. To get the material out they need to be open on one side, but that is hardly an issue with a design that airy. No additional material is needed. The only case where you need support is for FDM based printing with sharp overhangs. Even this can be mitigated with clever design, such as making overhanging parts with bridges (connecting walls with a stretched layer of material that spans a gap) or teardrops (closing gaps using low overhang structures, like the buttresses on gothic buildings). The main advantage of 3d printing is that it can produce structures internal to the object that cannot be made by any subtractive method, and that it makes production costs linear and design-independent. This is very cool, since it literally costs the same to make two identical or two different objects (with the same build time) and it separates cost from volume. The costs per unit are still high compared to injection or casting, but the tooling costs are essentially zero. And the costs per unit are dropping rapidly, particularly given that the FDM printers themselves are now partially self-replicating

It's a very exciting time to be living in. I have three printers. The first printed the second. The second printed the third. I've made a number of things which turned from idea to design to prototype within hours to days. Then I tweak, hit print again and I've got production. No tooling, no waiting.
The untold story of how Jef Raskin helped to invent the Mac
I believe that misses some edge cases as well.
For me, the point of interest comes from locking down a blueprint distribution model.
Everyone can print certain items depending on their access to raw materials/power/specification of fab, but depending on how much they pay for the 'blueprints' will be the difference between generic and premium branding with every tiny difference in between.
The cheapest professional machines run into $50K unit prices. A RepRap will set you back under $1K, but it's not very useful at the moment.
Todays much needed "laugh out loud" moment:

How do you, ideologically speaking, defeat a crowd that is enthusiastically demanding that you "DO A BARREL ROLL! DO A BARREL ROLL!!" ?
Google Map Javascript API - An year in retrospect
There's a big debate to be had about the utility of journals in 2011, but when a Wikipedia editor writes about TOPLAS that "I'm not sure about this journal [TOPLAS], more research would be necessary, it may have a low impact factor as it does not have a wikipedia page, which indicates that the journal itself is not notable." then you know you're in trouble. I'm only sorry that my articles which referenced Nemerle wern't enough to save its Wikipedia page - I hope it's reinstated. I don't know whether all of the articles deleted were worthy or not, but Nemerle, in my opinion, has justified its place in the world.
Gadget Love: Romancing Google's CR-48 Laptop
Pretty much inaccurate data. For example many project release under a new "3k" name, and leave the old ones. One of those is a backport of a stdlib module (multiprocessing), etc. So, it's bad data, and misleading, but I admire the idea.
Maybe for something like this: http://www.asymco.com/2011/02/11/in-memoriam-microsofts-prev...
CoffeeScript benefits from the work done on other JS dialects. Last year jashkenas rolled in "features and optimizations" from Coco which is itself a dialect of CoffeeScript [1].

http://news.ycombinator.com/item?id=2037996
* (you can't even test drive the products to tell)*

Sure you can. Under EU Distance Selling Directive (97/7/EC), you can return any product you buy online within 7 days, even if you've just changed your mind.
Radiohead New Album Sets Aside 'Pay What You Want' Model
I'm not a startup guy by any means, but I have to say that it's surprising how many well established businesses don't get it right.
My mistake: a lack of passion for the core business model. Focused on the technology I am passionate about, drove the startup through this passion and technology, failed to focus on and understand what the core demographic truly wanted.

By the time I realized my mistake, I was ready to move on to another startup. Wasn't able to create passion for a core business and the technology wasn't enough.
DNA spray to catch criminals
The Khan Academy is not seeking to replace teachers/coaches/tutors. The good ones will take advantage of what resources like the KA have to offer. On the other hand, a bad teacher has the ability to damage a student's ability and desire to learn for years.

There is a chance that the Khan Academy could make the world bad-teacher proof by giving students a resource with high quality guided instruction that includes mechanisms to keep them motivated, and I think that is nearly equally important.

(disclosure: KA Designer)
To elaborate... if you are passionate about building web software, then building web software to run your women's fashion business is the wrong move. Build a business around web software itself, not something else that happens to use web software.
Well, we don't have the insider insight that you have of course, but I've been a follower of news about such deletionism (and pity editor fights) for a while now, and find that it's really hard to believe that "The truth is, almost everyone in the Wiki community is acting in good faith."

Even if this is true, you can do horrible deeds while thinking that you are acting in good faith, the Inquisition is a good but extreme example. What is needed to stop such nonsense is an internal balancing mechanism in Wikipedia against such wayward editors.
How much work did it take to create a printer when you already had one, and how many custom parts?
Hey mise, thanks for your feedback. It all comes down to just doing it, but I tried to list possible pitfalls. The article's subject is on the abstract side, but in the next articles I'm preparing I will discuss very practical, actionable details about generating income online.
Why not? What are the differences?
Yeah, us being the substrate rather than the software is a bit of an unusual take on it, even now.
Sorry, but that just a load of fluff.
FYI... I see people make this mistake a lot and never acknowledge or realize it. It's usually blamed on something else (funding, timing, etc). If you aren't hyper excited about using the end-product you are building, there is a potential problem.
Stop raising money and build your business
When it comes to manipulating clouds, human ingenuity has met its match
Rovio: no “secret sauce” for apps success
What's great about it is that it's fun to read through the jukugo descriptions even if you don't plan to learn Japanese.
Mint will update that spreadsheet for you.
You should first ask yourself if you really need an email address. And see if you can get away with not having one.

Requiring that the user have an email on file is not as necessary a requirement as a lot of people seem to think. It seems like half the time or more, they just want to spam it anyway.
what exactly is HTML5 about it?
Can you name another circumstance under which ad hominem is not fallacious?

As far as I'm aware, disputing an argument from authority is the only non-fallacious use of ad hominem. That's because an argument from authority is dependent on the character of the speaker, and attacking the speaker therefore can debunk the authority.
The Untold Story of How My Dad Helped Invent the First Mac
Joomla vs. Drupal: An open source CMS shootout
You are just disguising your acceptance of consumerism by fabricating as an experiment, man.
That's great. Different articles suit different people, I like the more actions-specific ones for sure.
Well, that project could be wikipedia if the community so decided. They would just need to seriously loosen/eliminate the notability criterion.
Never assume your potential clients think like you
That was certainly not my intention, Steve. I was aiming for something useful that could work as an introduction to a series of articles on generating money online through content. I'll focus on doing better from the next article.
A company can't be immoral, no more than an axe can be immoral.
You can type in "/help" in a chat to see more options:

sys: Available commands:
/me [text]
/add [skypename+]
/alertson [text]
/alertsoff
/whois [skypename]
/help
For more help please see http://www.skype.com/go/help.chathelp

Clickable link to the full list: http://www.skype.com/go/help.chathelp
i think its interesting that, for a guy writing a book about the colonel, he doesn't seem to know why they renamed themselves officially to "KFC". it was because of a trademark dispute with the state of kentucky, not because it wanted to appear more health-conscious.
Man, everybody is grumpy today, happy valentines? :)

I know Perl. It is the Perl syntax for regular expressions. I never said it was the first or only to use that syntax. Sheesh.
This guy's like a John Gruber for Microsoft. If you believed everything he writes you'd think that Microsoft was selflessly sacrificing itself in all sorts of markets, saving rivals and helping consumers way above and beyond the call of shareholder duty, on its way to corporate Martyrdom.
Anything like that around Moscow?
Weren't folks setting up their own GSM network at Burning Man?
Ask HN: Please review my web app
Find interesting tweeters to follow by asking friends with http://www.bettermylist.com/

The app allows you to create a page where your friends can add their suggestions. You can share the link to the resultant page in various ways.

You can create a list page for a topic such as "programmers in New York" and ask friends to help update it

Please let me know what you guys think
Stack Exchange process for deleting content > Wikipedia process for deleting content.

Having nominations be anonymous until a consensus is reached stops this kind of issue arising. Sometimes complete transparency isn't the best policy.
3D shoot & play... on a phone
This is a big win for Linux. The London stock exchange was one of Microsoft's big clients that it touted in marketing materials. The with the high profile problems (outage / slow), it quickly became a headache for Microsoft. If I remember correctly, Accenture blamed them and they blamed Accenture.

If their Linux system does well, with no major problems, it will be a nice high-profile case study for Linux.
Generally, those from the engineering community sneer at the MakerBot and the RepRap. Just listen for the word "tolerances."

Now, they're totally right: the home printers have a significantly lower resolution than the professional ones. But unless you're making professional grade parts, you probably don't care, and they use the same materials. (I'm assuming you're making the comparison to other FDM machines.)
The point here is that "the pattern" used by developers is often grossly incorrect. It'd be better to not even attempt to enforce any pattern.
This isn't true, by the way. The uPrints start at $14,900 now: http://www.dimensionprinting.com/3d-printers/3d-printing-upr...

I'm also assuming that you're talking about FDM, like the MakerBot/RepRap. If you're talking about a different process, well, then it's different.
I remember reading on TC a few years ago about a new P2P music sharing, micro-payments service (all the buzz words in). You would download a client and share your music collection on a P2P network and get paid for sharing (or something like that).

I don't know how big they are but they are quite well known: Grooveshark
Here's a great test image: http://i.imgur.com/biW6Z.jpg
Why should I invest any time in this show when it's likely to be cancelled before the storyline matures?
> Because I like to dine out more than Kris does, for instance, I pay for most of our restaurant meals. In return, she pays for most of the groceries.

I do something similar with my housemates. They usually buy the meat, because I don't like to pay for good stuff. I usually buy the milk and vegetables. It's not an explicit agreement, that's just how it happened.

It actually works out the same as if I was paying more for meat than I want to. But I'm happier than I would be in that situation.
Vim colorscheme addict support group
$6B for Rural Broadband: Its About Time
Asana vs 37 Signals?
The artist goes by the name Goopymart: http://goopymart.com/
Here's somebody else's research on the subject:

http://www.iranchamber.com/history/articles/arming_iraq.php

It seems pretty well cited. That citation itself came from this Wikipedia article:

http://en.wikipedia.org/wiki/Iran–Iraq_War#U.S._support_for_...
Consider learning Web Standards and HTML, your HTML is bad. Place all that JavaScript ether in a different .js file or bottom of the page.
I presume from this article that Caprica has officially been cancelled? I really enjoyed that show, as weird and dark as it was.
"Maybe it's volume over substance"

Shhhhh... Don't tell Google!
Mining Valentine's Day listening trends
Desperate monopolist? They have 5% market share on mobile.
A watershed moment? I hope we can get some better/more research on what works, why, and under what conditions.

Good to see more honesty breaking out.
Why would you spend an equal amount of time on each article, that's insane?!?

...and funnily enough the root of the problem, if Wikipedia could have a rating scale instead of the binary "accepted/deleted" then everyone could be happy. In such a system you could browse only reviewed, fact-checked, vetted, editted, adminned, wp:blergh articles, and have something that looks a lot like a real encyclopedia. Or you could browse at the EVERTHING setting, and read more about obscure pokemon references than you could ever want, or you could browse at any setting inbetween and get the level you want.

It's a false dichotomy that the choice is between either a well-edited encyclopedia or un-edited fandom crap. You can have both at the same time.
I know this wasn't your point, ErrantX, but to answer the quote:

You don't need to. By ignoring or laughing at their juvenile antics, and by not engaging them as adults, you win. Not to defend Scientology, but as absurd as the gathering was it is not going to impact much of anything. The world is a bigger place than internet memes.
Trends in recruitment tools
I love the idea! I hope it's not too late for valentines day though.
Rebuttal: Be your own customer.
If I remember correctly, Accenture blamed them and they blamed Accenture.

There's a good chance there's worthy blame on both sides.
Idea: Evolving website reputation systems.
I'd get your design above "the acceptable quality range." To your users, the design is the product.
Yes, back in October http://insidetv.ew.com/2010/10/27/breaking-syfy-cancels-capr...
They are a monopolist because most of the world depends on Windows and Office.

They are desperate because they know that in the long run, Windows and Office will be irrelevant.
Analyzing LinkedIn's IPO FIling (And Why It's Not a Job Board)
Don't disregard high school until you've actually done something significant on your own time. Saying "this is a waste of time" doesn't have much merit when you haven't launched a successful product yet.
With the current model there needs to be some line because editors are a finite resource and people do occasionally deface articles etc. I would suggest having Wikipedia’s deleted articles end up on another website (using the same backend) which is then ignored by the editorial community to avoid annoying people.

PS: There are already plenty of other wiki's with different focus. There is little need for ex: naruto.wikia.com content on en.wikipedia.com.
A Victim Mentality Will Doom an Entrepreneur
Leveraging their market share on the desktop to grow their market share on mobile.
What is a writable API?
It isn't a hard drive space issue. All deleted articles are kept in the database.

Are you seriously advocating that if someone comes and posts an article in main-space which is nothing but an advert for a crappy little garage band or some kid creating an article about how his friends are gay or whatever shouldn't be deleted?
It says subset in the title and superset in the description.
Don't you see how this is fraud at work? Nowhere in the description of the difference between these models is the piece of foam mentioned or hinted at. To the contrary, the description of the 595's indicates that they include ADDED technology to improve sound quality and comfort. Which is full-on lie.

Nowhere in the 595 description do I see wording to the effect "exclusive to this model". Nor do I see anything in the 555 description that says it is missing features of other headphones in the line up. So where is this full on lie?
Most of those elephants are continually hot topics in mailing lists, the blogosphere, and twitter.

It is a sign of a healthy community.
True perhaps. Although I think there is a distinction here, where the crowd is being deliberately absurd.

Such absurdity garners undue attention, which also highlights the criticism (of Scientology) they are supporting. And what does Scientology do to respond? Call them trolls, they look petty. Take them seriously, they look silly. Confront them, they look violent. Ignore them, they look like they have something to hide. And all the while the camera is rolling.

So it is a two pronged sword; you're drawing attention to the cause. And there is simply no response your opponent is able to give that benefits them.
Zendesk Brings Help Desk Software To The iPad
CoffeeScript has C#-esque lambdas.

item_names = $("li.menu_item span").map (x) -> x.innerHTML
Foursquare adds five new languages to platform, big focus on API this year
The browse page looks at pictures your friends have made. I was thinking about adding up/downvote ability so I could have a universal browse page, but I have some hangups about letting anyone view memes people have made of you since you didn't consent to your picture being on the site per se. I chose the cautious route.
Disney For Adults By J. Scott Campbell
Disney For Adults By J. Scott Campbell
HP Acquires Vertica
HP buys Vertica
Because maybe it won't be?

The last BSG went pretty well; I only started watching when it was announced that it would finish in a few months (didn't know about it before) and I was the exact opposite of disappointed.

If I could watch the shenanigans of humans and cylons again, I would love to. Even if it gets cancelled a season in.
a BSG prequel series set after Caprica and chronicling a young Bill Adama’s exploits during the first Cylon War

This was probably pitched as [insert war series] IN SPAAAACE!

http://tvtropes.org/pmwiki/pmwiki.php/Main/ptitlekt6mtovm4vn...

The writers could just recycle plotlines from the best half of "Baa Baa Black Sheep" for a year. The target audience could be mainstream and emphasize action.

Why invest time? Because you like seeing things that go, "pew pew, BOOM?" (Take as tongue in cheek -- I expect you have higher aspirations for your media.)
Also, if some cheap Chinese manufacturer slaps the latest Android commit on their handset, Google makes money, because that phone is going to run Google searches and show Google ads.
This is a very good practice.

I've been working on a large project that takes this approach for more than just email verification. We try to validate required information of multiple types (emails, accounts, etc.), and provide a "Move forward without validating" option after a third unsuccessful attempt. It's made for quite a better user experience overall, reducing the frustration of users sure they're submitting correct data while "the computer" thinks it's wrong, allowing them to complete the process nonetheless.
The notability guidelines don't address this at all. If the article about AliceML got defaced, the people who obviously care about it would fix it.

And if nobody cares about the article, why does it matter if it's been defaced? And why not delete it once it's been defaced, rather than pre-emptively?
Ask HN: Pay for Tumblr Backup Service?
I woke up this morning and half of my Tumblr blog has disappeared. Honestly, given Tumblr's recent problems, I'm not surprised that this has happened. I've put blood, sweat, and tears into my blog; this is really disappointing.

My question: is there a Tumblr backup service that you use? Would you be willing to pay for a Tumblr or blog backup service?

-Heartbroken blogger
About details: agreed. But you'd think Nokia would say something concrete about how great the deal is, given their shareholder's mood at the moment. What's the plan? Use the billions to make a surprise dividend?

Maps is the kind of thing analysts were looking at. But I understood the deal as saying that MS would have a special search interface for Nokia users that integrated with Maps, not that WP7 would syndicate the service. That would be in the category of "less that complete surrender over UI".
You insulted people by saying that something they have invested time in is not "notable". Therefore they insulted you back. This shouldn't be surprising.

If I go and nominate "Ball-peen hammer" for deletion, I'm probably going to get [called] ignorant in the AfD discussion. That doesn't mean that "Ball-peen hammer" should then be deleted.
"Maybe py3k is viewed as "that bad," that no one wants to bother with it?"

I don't think anyone's viewing it that way. A lot of people want to switch and many are, but there's the non-zero cost of porting and also the generally low demand. No one wants to spend 3 days of initial work on a port that no one currently wants, then tack on the continued maintenance of two branches (or a single code base that works with both and requires twice the testing).

Part of the reason we have the PSF Sprints funding is to solve that problem. A group of 6-7 developers in Cape Town is taking advantage of the funding in early March and plans to complete more of the py3k port of matplotlib. matplotlib is a great one to work on in terms of community impact since it usually ranks highly in any poll of 3.x blockers.
In contrast to the oft-proclaimed response to these sort of things, this news actually makes me feel young. I mean, Lemmings has been around forever, and when forever turns out to only be twenty years I feel much, much younger.

Also, I totally sucked at Lemmings. It wasn't until Worms arrived that I found my cute little animal with a death wish.

Also also - Lemming suicide is basically a fiction created by Disney's Wild Kingdom in 1958. http://www.snopes.com/disney/films/lemmings.asp
It's not meaningful at all. The list would just be constructed entirely from right to left. The "first" item in a pair would be on the right, and "car" would just mean "item on the right of a pair", or "first item in a list".
I never understood the point of enforcing the spec for user input. Even if done properly it may reject some working, but invalid email addresses. And it does nothing to increase your chances of getting a good email address. Your user is either willing to give you their real address or not. If they are willing, validating fully does not protect against typos and if they are not you will get a well formattd fake address - validating to spec serves no purpose and possibly harms. Just don't do it.

Check for an @ sign and possibly a top level domain name (at leasr one dot) and be done with it.
aka, 'Don't feed the trolls.'

It was figured out long ago. Yet those newer to the internet still don't understand, and even us hold hats slip up every now and then...
The Khan Academy. Everything that fits under the term 'numeracy' is comprehensively covered there. Go ye and watch.