skysight-inc/HackerNews huggingface dataset:
Unix time (which is UTC, and expressed in seconds) does not embed a time zone, which is useful information in some contexts.

For example, with e-mail you want to know both the absolute time (so the mail client can indicate how long ago that was) and the sender's local time (important for human interaction).

Implementation wise, making the timezone explicit forces the implementer to think about it at least once and not make the mistake of writing a local time, which works while testing on systems that are on the same timezone and breaks down in the wild.
Yeah, my guess is some kind of LIDAR type device and perhaps a mix of a couple of other things. A researcher friend of mine was musing over possible uses of LIDAR a couple of years ago and this was one of his end uses if my memory is correct.

I could of course be wrong, so if someone knows different
Chances are that if it is a really good idea, 100 other people are probably working on it at the same time. It does not matter though. What matters is how you execute it, market it, solve a real world problem with it etc etc. Go ahead do it.
Due to the ridiculous hellban that occured I'm posting my intended but disallowed response using this temporary user, because I feel that getting the explanation out about how solid state memory devices operate is important to the discussion and to clear misunderstandings that people may have regarding safe erasion of data on flash memory:

There's a problem with your theory here, in how you (and others responding to DanBlake's question) have misunderstood how a flash memory device works. How can the user or operating system, on software level, select a definite block of data for "zeroing out" when the storage medium is an SSD where wear-levelling is always present and ultimately what controls, on lowest possible level, what memory cell data is going to be written to? To my knowledge - and do correct me if I'm wrong - this is not doable on an SSD, and you thusly have to overwrite the entire SSD to be certain that the memory cell holding the key is erased. This is how flash memory controllers work - they always write data to the next free block, remap the old block and then marks it as unoccupied in the BAM.

If the case is a mobile unit that may have a small portion of separate PRAM or similar where you can store crypto keys, the principle is the same there as that's also a flash type memory, even if a much smaller one that is faster to erase. However, that solution isn't usually available in a "normal computer", nor available to a "normal OS", which are the two targets of SSD drives.

/ hackermom
thanks!

re: the first unit test, and the saving & retrieving of records -- i know this feels a bit like "testing django", but the real intention is to test that we've set up our model with the right fields.

The alternative would be to test defaults - instantiate a model, and assert that it has attributes with the correct names for the model fields we've defined, and the correct default values... I suspect that is the more common pattern, and it's certainly what we do at work. I think it can be seen as better in the sense that it has less of a dependency on Django. OTOH, the saving and retrieving provides a useful introduction to the ORM, so it's useful for the wider tutorial. It's also a bit more in the spirit of testing desired behaviour... So, pros and cons on each side really...
This confuses me, he has a family business with a background of 150 years and expects to win the Internet in 4 days?

Why didn't he make a poll about his products and tell his customers about it?
This is what happens when business owners don't educate themselves before venturing into social marketing.

Facebook is not a one stop marketing shop. It won't light a fire under a business unless a) that business is worthy of the fire b) that marketer is very proficient.

It sounds like neither a nor b were satisfied in this case.

Were the owner to spend more time educating his or herself on social marketing, I feel they would have received better results.
I among others will work on the dev-jqueryui branch in June. I hope we will manage to stabilize it and merge it to dev in this time.

It should be noted that we plan to make the ui an optional part of Aloha (with default being a jqueryui implementation) to make it easier to integrate into existing systems. The heavy extjs dependency is part of why Aloha is so huge.

I also plan to look into using google closure compiler in ADVANCED_OPTIMIZATION mode to shrink the size to the absolute minimum.
I guess we are all dumb fucks for following the rules. Life's lesson is to be fake and fuck over your friends for their money. At this rate I rather be illegal, but ethical at least. Our laws tell us that as long as we follow the rules set by "unethical and legal" people like dumb fucks everything will be ok all the while paying ~40% income tax. Just sit down and shut up and be on fb and enjoy your life. No wonder Eduardo left the country.
US firms put social values before big profits
Of note, it was not google who created this. It's just hosted on Google
> everything I read about maximising your web presence and impact told me that SMEs must integrate and embrace social media, especially Facebook

This is where he went wrong; signing up to Facebook because a book said a business needs a Facebook page to be successful online is the wrong approach. If you can't explain why you're making a Facebook page it probably isn't going to work, even if you have no knowledge of Facebook as a platform you should still have knowledge of human behaviour.

We're not a traditional business (we're an internet forum) and we have close to 100,000 likes at the moment, the value of having likes is seriously overstated, we get maybe ~300 click through's when we post an article and engagement is dropping more and more, in fact the same can be said of Twitter, we have ~6000 followers and get similar click through rates when we post something. They're not bad to have (Facebook page, Twitter account) but they aren't worth the time investment in most cases.

It seems now that liking a page on Facebook or following a twitter account are hollow gestures that don't really carry any weight in the future.
I should have put it as "programmability", and I not only address this particular post, but the tendency in general.
Video: Throwable Robot, Roomba-Riding Humanoid, and More from ICRA 2012
Out of curiosity is it working in IE8 for you? Doesn't appear to fully work for me using IE8 on XP. The editor buttons and most of the page don't appear.
I really like this: Add "import bpdb; bpdb.set_trace()" to your code, and from pdb type 'B' to drop into bpython.
The article is a cautionary tale about the myths around using social media to generate sales. There feels to be a belief that if I am on twitter, Facebook etc this will boost my image and sales. Reading the saga of others social media advertising is expensive and ineffective.

The pain is in first attracting the right people to click your advert. Then you need to get them to buy something. With such low conversion rates, the cost per click is too high for many to justify.
Well, I also have the same problem with Firefox, where it does not shut itself down properly. But as for Flash, since recently it started consuming up to 300% of the CPU for me on 32 bit Linux. So I would not say that Chrome is all that bug free.
Also, I'd tend to agree that testing model attributes is a bit OTT - it's very close to testing a constant... but, it really doesn't take that long, and if it provides a scaffold that makes it easier to write future unit tests on the model (eg, on a computed field), so much the better for a little nudge that encourages more test coverage...
In backbone, I will create a new Router for each page (though sometimes you might reuse the same router for groups of pages that contain the same views).
One of the kids in the video says "[In college], I was challenged in things I am not interested in, but not in thins I am interested in." That's the whole point. Stepping out of your comfort zone may even be the single most important life skill. If you cherry pick the stuff you want to work on, you will never learn something new. College is a good place to learn how to hammer through "uninteresting" stuff.
If you haven't used Appirater, the article doesn't make it clear that one way to use it is to only nag users for a review after they've hit a "significant event" like completing all the levels or improving their score or whatever.
Is the whole Internet on 64-bit time_t now? Will they all be by 2038? I'm guessing we won't know that answer until 2037...
I really can't imagine using this for a longer period of time. Maybe as an extension of keyboard and mouse/trackpad that you would use to scroll trough pages when researching something or stuff like that. You still need a keyboard to type as far as I can see.

That being said; I really like the idea and would love to know the tech behind it.
I don't think it is unethical to make more of an effort to persuade happy users to leave a review. In fact, I find the "send love" option quite brilliant.

What I do find a bit appalling is outright tricking the user to think they are leaving a review to help other users make an educated decision on whether to download/purchase this app using a faux review form that leads nowhere, as in the last example. This is deceptive and in in a way it's almost comparable to phishing. I think that "posing as an official Apple feedback channel with the intention to censor bad reviews" would be a pretty natural addition to Apple's Terms & Conditions.
[video] Bio-Bots: Bio-Integrated Robotics Using Live Cells As Components ICRA 12
BarackObamadotcom
Funny, but this post and article feel like keyword spam to me...
Reminds me of the time madonna flooded kazaa with mp3s of herself swearing like an entitled 14 year old girl. It was pretty funny.

http://news.bbc.co.uk/1/hi/2962475.stm

I still have a copy of the file somewhere.
Well the question is if they scaled everything in the 1/4 scale model, including power. They say it is flying since 2007 so we have to assume they did their homework before trying to make the current full scale prototype.
The issue is cost. They are claiming an order of magnitude difference in price (1 /10th).
I don't see the need for a placeholder for the n-thousandth day of the year. Unless we want to accomodate something like 2011-0367 also equating to 2012-0002?
Netflix, Carbonite
We seem to be getting more of these types of articles. I haven't seen one yet that declares facebook advertising a raging success for a business.

All of the responses to these articles are usually "they're doing it wrong," which is more of an indictment of facebook than the multiple users who try out advertising and see no positive results at all.
Also I think there is a big of a general problem with how people approach internet marketing and that is as a result of hype.

In the real world, there's a difference between promotion and advertising. You promote first and advertise once people know who you are. Then you run well-targetted advertisements aimed at the audience you want to reach. It's easy to forget that on the internet.

Often times people omit the low-cost promotional tools and run straight to the advertising. That's a big mistake in most cases.

I say:

1) Set up a Facebook page for your business
2) Learn to blog
3) When you are ready to try an ad campaign put a lot of legwork into it. Also look into site-specific advertisements for sites in related territory, etc.

Advertising is hard to get right. It always is. I would agree it's not an indictment against Facebook. It is an indictment of the hype of internet advertising though.
The reason behind killing of hardware/science businesses is that we are transitioning into The Matrix (based on Internet). So software that utilizes network effects is in really high demand.

Update 1: Downvoting? I can't even guess your reasons for that.

Update 2: Thanks for upvoting back. Downvoters still didn't give the explanation though.

Update 3: Replaced "Unified Matrix" with "The Matrix" (movie).
I had a whole host of problems with the 10.x line. My PowerPC cried when I updated from an earlier version. It certainly felt like beta software.

Looks like they are back on track. I like the renaming of the upcoming release. A little sad to see Unite go. Perhaps it wasn't the right time - it always looked like a bit of a security nightmare.
IRIX may have features that Linux lacks but this is not an example of one. Linux supports 32-bit binaries with 32-bit pointers that run on 64-bit kernels on the other 64-bit archs, like powerpc or sparc64.

This problem is really a quirk that results from the fact that AMD made significant changes to the arch(added 16 registers) when they invented amd64.
Shabar mantra
Shabar Mantras are used to control someone. It is highly recommended not to misuse them. Malefic intentionally use brings no result. Love is God but Lust is Shaitaan. Use for Love not for Lust. Always prefer humanity. it provide you highly sucess and improve your health.
Cool! That's the first thing that hit my mind - how would this look in bootstrap? Thanks for doing and sharing this!
The warez group CORE sign their releases with CRCs in their NFO files. They distribute a checker program called core10k.exe which ironically often turns up with malware injected into it on p2p sites.
Facebook is a medium for brand awareness. It's just like the traditional TV adverts. You don't really expect the viewers to run to the store and buy your product after viewing the advert. You want them to remember your product when they shop for their needs in your category.

People are getting bad ROI with Facebook because, they are comparing it to the ROI to the ads on Google. Ads on Google tend to have much higher ROI because they usually represent users already in need of your category of product. This is like people handing you shopping brochures when you go to a mall. You are clearly out to shop and hence the ROI on brochures will be higher.
Open Source is Anarchy
No SDK love for Canadian developers?
Clearly something is not right, so I decide to view the profiles of all those who clicked the ads.

Whoa, what? Advertisers can see my Facebook profile if I click their link? Talk about oversharing...
We did a similar campaign for our family business, with a much smaller budget (and area). We received a lot of likes, I think we spent $50 total and got about 150 new likes. The value for us was not click-throughs to our online store, but the ability to directly communicate with our customers. We run special Facebook specials, and let people know when we get new products they might be interested in. If we have something we really want people to see, we can run a sponsored story. We've had a few people come in looking for deals we've posted on Facebook, so we know at least some people see them. I'm not sure if it has paid for itself as far as pure revenues are concerned, but I think keeping customers informed and aware of your existence is a little undervalued currently.
FB down 8% at opening
I learned most of my early english from TV. I grew up in the Netherlands, speaking Frisian at home and Dutch at school. At the time dutch tv did not offer much programming aimed at children, the more interesting cartoons to be found on cable tv were on english language channels. I would tape Transformers episodes and watch them over and over.

Later on I started consuming other media (video games + video game magazines, american comics), so that by the time they started teaching english to me at school I was already relatively fluent.
Yes, it is still a great glue for large projects. Right now I'm building a custom public health database with data from many different sources - some of them PDFs and other files with really irregular formatting that require single-use scripts with complex regular expressions. Perl was my first language so I can always purr through those problems, and I'm really comfortable (happy even) debugging a Perl script.

I'm also maintaining a legacy bioinformatics project with about 30,000 lines of Perl in it and still making expansions on it. I won't defend Perl as the best choice for that project other than to say I was around some very good Perl hackers / sysadmin types and I picked up the only tool with a knowledge well nearby. It did however make me a much better programmer, especially since I ended up implementing a lot of functions manually that I probably should have just found on CPAN or used as a built-in method in another language.

Perl is also really great when you are manually splitting data and jobs across a few thousand nodes and locally tweaking the run parameters for each job. Now that I've learned a few more languages I know that sort of thing might be better done with Hadoop but for a large GPFS system I rarely had problems.

I will say that for memory considerations (the main ceiling I bumped into on the old cluster) object-oriented Perl sucked and was very slow. If you wanted to roll your own pseudo-objects with well designed nested hashes though you could really wail.
I'd have signed, but after signing in, the button stays grey and I can't click it. Click on the help links brings me to an 'under construction' page. Clearing my cache and ctrl-reloading the page didn't help.
Facebook ads are good for facebook games and other facebook apps, though. This is not a small market, and a significant revenue for facebook. Otherwise, it's true that google ads will get you better results for targeted ads. It's clear to me that facebook is not going to make lots of money from advertising. They do have the potential to become a huge media distribution platform for entertainment (which they already do for social games and 3rd parties like spotify).
http://markitup.jaysalvat.com/home/
Saying it's where he 'went wrong' is a bit unfair. He tried to research the market by the sound of it:

everything I read about maximising your web presence and impact told me that SMEs must integrate and embrace social media

He did his research. He's reporting back it doesn't work.

It seems to me that the entire point of him writing this article was to warn other SMEs to not take that advice at face value.
even in comments a whitlist of markup would save a lot of code on both the ends.
First, non of what I'll be writting is an offense of any kind, I'm just putting it first because a) my other language isn't english 2) it's a sesitive subject and 3) it's awritten communication - annonymous.

You are right, love is love. And one thing I learned, never argue with it! Never! So secondly, I don't think there is anything wrong with premature optimisation, everybody wants their kids to be allright and, yes, normal. If they are not, you still love them and you can't predict it anyhow but I completely understand if you want to reduce risks. since I was faced with a similar decision myself (thank god my genes turned out ok), my girl-friend and I decided to go for it. Exactly because we wanted our kids to be allright.

And as for the rest of your post: you opened my eyes on a subject I never really thought about, thank you very much for that!
I read your post with extreme interest and came to a better understanding about being deaf. Thank you for that.

I have a few questions. Can you sign? Can you read lips? Can you pronounce words? The reason I ask is I once had a deaf friend. He didn't sign, or at least didn't try to with people that didn't know ASL, but he could read lips. He could read lips so well that he could tell if you were just mouthing a word or actually saying it out loud. He would often admonish us if we simply mouthed a word to him. :) It got to the point where the only impediment to ongoing conversations with him, was that he had to be looking at you. He was so good at reading lips that he would often pickup parts of conversations he wasn't a part of ( like "overhearing" one ). If he wanted to know what was going on, he simply had to look in people's direction and read their lips.

It was awkward for the first day or two. Him looking right at you, you getting over mouthing words to him, him replying to you in the tone that only a person who can't hear their own words would. To me, it was no different than learning to speak with a foreigner but the added benefit was that we seemed to pick it up after no more than a week of solid talking, laughing, mocking, and understanding. I seem to recall him telling me to shutup on more than one occasion. Coming out of his mouth, it sounded more like "shauuuuup" with no real emphasis on the T or the P, but I knew what he meant.

I don't profess to know whether or not he's gone through the same loneliness as you, but it seems that he found a way to be a part of "normal" that worked for him and for the people around him. Does this mean I wouldn't have learned sign language? No. This also wasn't a work environment and it predates any technological "advancements" that may be at your disposal now.
I absolutely love the concept of using something akin to chopsticks to manipulate data.
You only get one chance to be a beginner
Google Chrome most popular Internet browser
Ask HN: Free Ad Network with 100% rev-share. Will there be takers?
I plan to build this and I wonder if this is something that bloggers/websites will use.<p>Basically, I have a few websites and I am using Adsense and some other ad networks. I was thinking if I build a complete ad network for my sites, I can earn 100% of ad revenues.<p>Do you think others might think the same as I do?
Just USA it seems :\
Most of those complains seem to be pretty basic. To me the only interesting one is #4, about syncing models.

As for collections - how would you handle adding/removing objects in Spine? Backbone's collections just let you listen for add/remove events so you don't need to do any manual work there.
Just to be clear. I didn't write this! I just used it.

The credit for writing this goes to James Hollingworth: https://github.com/jhollingworth
My CDN Progression
Yeah I think you could remove that section entirely.
Locating CPU-intensive code in Node.js