skysight-inc/HackerNews huggingface dataset:
One interpretation of the wiring:

* Wires coming through the wall are mains voltage.
* Exposed wire is ground, the other two are active and neutral. They connect to two white wires.
* These two active and neutral wires are connected to two white wires running into the transformer at the left of the photo (although you can't tell whether anything else is connected left of there).
* A black double-insulated wire comes out of the transformer, and a brown and blue wire come out of the double insulation.
* The brown and blue wires go into the first connector box, which connects via the black double wire to the second connector box.
* Two white double wires come out of the second connector box, one going to each light.

GTV seems like it was a transformer manufacturer - it had a US trademark on the name for manufacturing many things until 2008, including for "electric transformers for lighting lamps".

One weird thing: the transformer purports to be a step-down transformer, but the black cable with blue and brown wires (standard colours for mains active and neutral) connects to the low voltage end, when it is probably supposed to connect to the mains end. It is almost as if the step-down transformer is being used as a step-up transformer. The transformer ratio is between 220V/11.6V and 240V/11.6V - so about 20. 240V*20 = 4800V.

If it was configured to produce 4800V on an easily accessible light, perhaps he is trying to say that someone was trying to electrocute him.

Update: I found this, which I think is a more recent model of a similar transformer, from the same manufacturer: http://gemini-technology.en.alibaba.com/productshowimg/30345... - this seems to confirm that the black double insulated wire is supposed to be the 240V input, not the low voltage output.
Good move, I think!

I'm glad you'll be able to provide high impact work to many startups.
Oh, is the grandparent in this case referring to blaming OTHER people and saying they had insufficient drive/motivation? Yeah, that'd be annoying.

Self-critics though? You have to be a real downer to get annoying if you're a self-critic.
Sorry to be a pedant, but I think you mean "disassemble" - I always get the two mixed up too.
I really don't want people mailing me on HN.
It looks like you get this algorithm almost directly if you just memoise a very simple recursive Levenshtein distance function.

(This insight could be implemented directly in Haskell by using e.g. the MemoTrie package)

The standard imperative Levenshtein algorithm (with dynamic programming) is also basically just a memoised version of that recursive version -- except that the memoisation is cleared immediately after the result you originally asked for is returned.
I think the guidelines assume you act socially in real life.
Have you got one of those transformers too? Is the black double insulated side supposed to be the low voltage or the high voltage side of the transformer?
Emacs23 trunk + Ropemacs trunk + AutoComplete trunk + Autopairs trunk

Platform
- MacOSX
- Ubuntu
- Python 2.6

Pros
- No rigid directory structure
- Unmatched indentation mode (autofill)
- Good backup editor
- You can hack your IDE anyway you want easily

Cons
- Pymacs + Ropemacs are quite slow at pretty much anything
- Emacs Pinkies
- Ropemacs' focuses way more in refactoring (which I rarely use) than code analysis and automatic imports and auto-completion, so the later 2 major features are lacking quite a bit
- Pymacs and Ropemacs have basically 2 people working on it, and an extremely small user-base.

Eclipse 3.6 + Pydev 1.6.4

Platform
- Same as above

Pros
- Fairly accurate code analysis, type-checking, auto-completion, syntax highlighting and import organization
- Very good VCS, build tools, issue tracking integration
- Has some very modern and very convenient editing shortcuts
- Has unit testing support

Cons
- Can be slow at times
- Monstrous memory hog
- Rigid project structure, launch options and build options
- Still have to drop back to the term for virtualenv, pip and other tools
- Not so good at filling columns
- Some people just prefer to type commands then click buttons
User address and phone numbers now accessible for Facebook devs
Did I misunderstand what he said or is he hosting rhymebrain.com on a netbook ??
yielded results that surpass those of the academics and giants of the field

That's an impressive pinch :)
I suspect that in many cases, if it's tough to contact them directly, that's exactly how they want it to be.
I was most surprised at this statement:

Thank you to those who participated in this week’s SecondMarket auction
for Facebook shares. The auction was successful and fully cleared
at a per share price of $28.26. Next week, the floor price will
be $26.25 and we will require a minimum sale of 25,000 shares. In
observance of the national MLK, Jr. holiday, please find the
adjusted auction timeline for next week below.

I've never used Second Market, so hopefully someone can explain things:

* How the heck is are they organizing their auctions? If someone wants to dump FB shares at $25.47, what's the problem?

* Why the minimum trade size of 25k shares? Is this driven by some sort of reporting requirement?

* They state that 2.7m shares have cleared their exchange. Should I conclude that the volume of shares on Second Market is 500k?

Something just doesn't seem to add up.
Nice work.

I have the official case from Amazon, the smell of leather is really nice and the case feels good to hold.

Might be a bit of a rip off for £30, but it's definitely worth it if you're thinking of buying a case
Even easier is Marco Arment's suggestion of using a standard 6x10 bubble envelope.

http://www.marco.org/1131994352
Totally Agree, The one thing that I really like about HN is that its simple.
Why not? (just curious)
3: A great illustration for this is the infamous Stanford prison experiment: http://en.wikipedia.org/wiki/Stanford_prison_experiment

6: You don't just start behaving in any way for no reason -- you do it because something happened. There's always a push, initiating your actions.

A great example of using it for your benefit is described in The Creative Habit by Twyla Tharp, where she says that having daily rituals helps in shaping new habits. In her example every morning she goes outside and hails a taxi; then she goes to the gym where she exercises for an hour. The point is she's not going to the gym every morning (that's hard, I tried it); instead she's just hailing a taxi (sounds much easier, doesn't it?). This puts her in motion. Waking up is a trigger to have a shower and dress, this leads to putting your shoes on and getting outside; once you're outside you just call the taxi, and once you're in the taxi there's no going back. You've tricked yourself into going to the gym. Again!
I just don't get why my reaction should be different for WebM than it was from OpenXML. A "standard" controlled my one company is not something I think I can trust.
pydev on windows.
Or sometimes i use Visual Studio 2010.

In Linux i tend to use Emacs. If you like Vim, then you could try Cream for windows, which is quite nice.

Its just a case of finding what you are comfortable with, I would quite happily dev on linux with nano ;)
Introducing the WordPress S3 Video Manager
I’ve decided to introduce the WordPress S3 Video Manager because I am sure that there are many people who are waiting for such a plugin to exist.
While this doesn't speak for all its graduates I have met two of their products. One quite young, early thirties, one much older, early sixties. Both had the maturity and view on life of someone, well...who didn't go to university.

Is a degree from university of Phoenix taken serious by employers?
Thank you for your advice) I will take it into account
This project's example is viewable at http://developer-access.com
`caching.cache`: A caching decorator that understands arguments
As I say below, this is simply not true... Have a look at what designers, junior architects, people doing 3D modeling e.g. for movies, people retouching photos for print, etc actually get paid.

If anything, the opposite is true... As a programmer, I can tell you I could get a lot done with not much power, and I say this having developed professionally on a SPARC 10 (look up the specs, and I don't mean an Ultra 10).
Very true. Those fast matrix and linear algebra libraries: BLAS, LAPACK are fast not because of using different algorithms but because of optimizing for cache reuse. Its the same reason why sometimes binary search trees performs better than (unoptimized) hash tables.
To everybody spending thought on this: Relax, nobody is interested in your porn collection.
That is nsufficient to be 100% sure that all our data gets overwritten. The disk's firmware could discover that a block is unreliable and never write to it again. Such a block could contain recoverable data.

Also, I am not sure that this is guaranteed to overwrite the last part of a disk whose size is not a multiple of 1M. I guess that will depend on how eagerly the device detects ENOSPC conditions.
Of course this shifts the trust to the computing system,
the CPU, and so on. I guess there are also "traps" in the
CPU and, in fact, in every sufficiently advanced mass-
marketed chip. Wealthy nations can find those. Therefore
these are mainly used for criminal investigation and
"control of public dissent".

I'm unsure in which way a government agency could benefit from having backdoors in the CPU? Even if they did, and even if it could detect that some sort of encryption was going on, where would it store the interesting data?
In your case, you could start by putting your email address in your profile in the about section, that's why we've been contacting each other so far.
I don't think anyone ever will contact me; i don't have anything important to say or to be asked.

Besides, there's email if I wanted it to be so.
●------ http://u.ly/73I ------●

●------ http://u.ly/73I ------●

●------ http://u.ly/73I ------●

●------ http://u.ly/73I ------●

●------ http://u.ly/73I ------●

●------ http://u.ly/73I ------●

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Gold autumn, personality Mes clothing + Shoes,
Travel bag that grabs an eye coat + Chao packet
Free transport

●------ http://u.ly/73I ------●

●------ http://u.ly/73I ------●

●------ http://u.ly/73I ------●

●------ http://u.ly/73I ------●

●------ http://u.ly/73I ------●

●------ http://u.ly/73I ------●

●------ http://u.ly/73I ------●

●------ http://u.ly/73I ------●
> And (applying a pinch of poetic freedom here) yielded results that surpass those of the academics and giants of the field in versatility and power.

I (as well as a dozen other students) were taught an IR course where we had to implement a search engine from scratch. We used tries both to provide spelling suggestions and to build inverted indices for text. That was 7 years ago.

Not to discredit Steve, he's done great work and his article is a great resource, but it's not the groundbreaking discovery you make it to be.

PS. Tries are awesome. <3
I echo these sentiments as well. I made some great friends through 9rules and it was Scrivens that was the first to call me "Stammy" :)
Ask HN: Who's hiring (Jan 2011)?
There have been 'Who's hiring?' threads in the past and It would be great to know if there are some updates on the needs (I'm sure it has changed).

Please lead with the posting locations..
You mean like pushing for other countries to not use land mines and cluster bombs but still using them itself?
Came here to say the Uk version of that: an A5 padded envelope from the post office. It's not that durable, lasting about a month the way that I throw it in my backpack, but it costs under £1.
We must learn to love uncertainty and failure, say leading thinkers
"some services allow to downgrade from SSL gracefully" - Is this true? Does this ability not defeat the point of SSL? Why would this technology be built in?

"Traditional wiretapping of phone networks was combined with GSM location services: thousands of people are now getting subpoenas and are dragged to police stations for being on streets in the vicinity of protests." - Phone towers keep location logs?
WHAT SCIENTIFIC CONCEPT WOULD IMPROVE EVERYBODY'S COGNITIVE TOOLKIT?
I agree with you 100% and am willing to take the down votes.
This is extremely obnoxious and I would think that LinkedIn is afraid that people will leave the site in droves if this is allowed to continue...
Oh, very true. There shouldn't be any, as there are uniting laws for EU banks, thanks.
That explains why I thought the game was so hard :)

I feel that the experience of controlling both robots was very interesting though. The split-screen behavior worked very nicely for that.
Logitech Webcam Drivers - Use the Correct Ones for Optimum Performance
There is nothing more annoying when your Logitech webcam starts to malfunction, or sometimes stops functioning altogether. It gets in the way of your communicating with others and you would probably want to repair it or even replace it.
SPEAK UP, I CAN'T HEAR YOU.
#5 and #6 seems to be contrary. Sometimes motivation is the bigger trigger to make things happen.
Feature set selection is simple: just ask the question "What would Digg do?"

Then do the exact opposite.

Would Digg add direct messages?
Big Cock Big Dick – The Biggest Porn Tube
Not exactly a duplicate, but related (somehow, I can't quite figure out how) to the submission made by the same poster right before this one:

http://news.ycombinator.com/item?id=2106853

I couldn't decide whether or not to flag it.
If You Are So Smart, Why Aren't You an Engineer?
Dr. Jekyll & Mr. Watson
> What -- quotes straddling punctuation?

Yup. I haven't seen it in Europe, and I also find it stupid.
I havn't looked at this, but I guess if you allow co-workers to rate each other then all that's going to happen is that the office politics gets transferred onto the site, with a lot of people bitching about each other, which might not be such a great idea. Also if you're rating co-workers from previous companies then old animosities could be perpetuated online.

I'm only cautious because in a couple of places that I've worked at in the past the office politics was occasionally quite toxic, and amplification of that via the internet could have quite serious consequences.
ZacharyBurt.com 2010: traffic/monetization stats; paradigm-busting books
Young Entrepreneurs: 2 Minute Strategy of the Billionaires
Downsize an image to 1% of the original`s size
The big problem with Facebook is that their business isn't defensible in the long term. There have been lots of other social networks come along in the past (AOL, classmates, Friendster, Myspace). The prior ones are all in shambles now, that people have moved on to a new place.

I don't see why another network can't come along in a year or two, and start stealing away visitors from them.

Compare a few publicly traded companies in the range of 50 to 70 billion dollars market cap (all seem to have a pretty strong 'durable competitive advantage', as Warren Buffett notes):

Comcast (63B) - millions of subscribers for phone, internet, and cable services, paying money every month for services.

Amex (55B) - receives a chunk of every payment that their millions of card holders make. Card is accepted at stores and websites around the world.

3M (62B) - sell 20+ billion dollars of "diversified technology" products a year.
An Inspiring Writing Topic can provide Rise to an Impressive
A good writing topic should inspire the writers and the readers. With a good writing topic, the writer is able to write an impressive composition. With a good writing topic, the reader is in a better position to enjoy what is being discussed about the topic.
I really hate those private messaging features available on most websites. If I want to be contacted on a given website I include my mail address (or a pointer to my mail address) in my profile. What's the advantage of duplicating the features already available in email?
Actually, it’s like the two-space after periods, replacing a longer space: it's a workaround when typesetting does not collapse punctuations. The dot should be below the outer edge of the quotes, otherwise you have too much diagonal white space — not unlike upper-case A and V should be set closer.
While I think he is a great add to YC, maybe also Gary acknowledged Posterous lost the battle vs Tumblr?

Anecdote: for our Quantter blog, we chose Posterous first. But then Marco Arment (busy) advisor of us, just told us: sthg like "Posterous?? those guys keep on trashing us (ie Tumblr)". While 1st impression preferring Posterous product, the switch to Tumblr was easy because of Posterous aggressive attempt to "poach" another startup users. That was not good karma.
I've used such tools to wipe my hard drives before selling or donating used computers (although I would use them before disposing of a hard drive in any way, really). I have heard of people buying up used computers and hard drives and extracting saved passwords from them.

A lot of people are smart enough to format it quickly, but not everyone will let (or know to) a computer sit for dozens of hours so that things might be wiped more securely.
Glass platters?
Civic innovation organizations to watch in 2011 (Oreilly Radar)
Seeking alpha testers for Beepl
We have an early alpha out, and I was wondering if I can find some volunteer alpha testers over here? The address is http://alpha.beepl.com

I cannot wait to hear back from you. Thanks!
PS - please keep in mind this is ALPHA. Things change every day as I'm working on it.
Web Designing Company
Web Designing Company, Website SEO Services, Web Development SEO
> 3: A great illustration for this is the infamous Stanford prison experiment:
> http://en.wikipedia.org/wiki/Stanford_prison_experiment

It is infamous largely for having no controls and rapidly deteriorating scientific conditions. Please do not draw conclusions from Zimbardo's failure; there's a whole body of better social psychology on this topic.
My biggest complaint is that there's no page to explain what beepl is or how it works -- things I'd like to know before I sign in with my Twitter account.
What about overwriting it with random data?
For those on Mac OS X (and perhaps *BSD?), we have srm.

The Secure Empty Trash function is a frontend for this IIRC.
This project is far and away the best thing to ever come out of CS32 at Brown. The HTML5 version is more than enough forgiveness for neglecting to to reply to the e-mail I sent you on May 18, 2010. ;)
The author makes a factual error regarding Norvig's version. He writes:

> Peter Norvig approaches the problem using a different way of thinking. He first stores his dictionary in a hash-table for fast lookup. Then he goes through hundreds, or even thousands of combinations of spelling mutations of the target word and checks if each one is in the dictionary. This system is clever, but breaks down quickly if you want to find words with an error greater than 1.

Norvig writes [1]:

> The literature on spelling correction claims that 80 to 95% of spelling errors are an edit distance of 1 from the target. As we shall see shortly, I put together a development corpus of 270 spelling errors, and found that only 76% of them have edit distance 1. Perhaps the examples I found are harder than typical errors. Anyway, I thought this was not good enough, so we'll need to consider edit distance 2. That's easy: just apply edits1 to all the results of edits1:

I wrote some code for this a few months ago and tried tries, which ultimately rejected in favor of a fast Levenshtein implementation. On a side note the author misses one other possible avenue, which is a family of algorithms using bit Vector operations [2] [3] to measure edit distance.

Anyway IIRC my code went the opposite way. It traversed the word then looked in the trie for matches. This quickly broke down as edit distance increased and I suspect this is what the author is observing in the other implementation.

The author's approach of going the other way is uninteresting idea and I might retrofit that to my code to see how it performs.

[1]: http://norvig.com/spell-correct.html

[2]: http://portal.acm.org/citation.cfm?id=846095

[3]: http://www.odinlake.net/papers/onsjo-cudastrmatch-sigal09.pd...
Just give people the option to publicly display their email in profile, otherwise no contact desired.

I'd like to see tags on stories (restrict to membership of certain timelength and karma) with their own RSS feeds. But I know that's unlikely to happen.
Delayed sleep phase syndrome
I think i suffer of DSPS, have anybody been diagnosed to this?
Good point. Once you sign in, it allows you to ask questions via twitter, simply by adding #ask hashtag to them. Beepl finds these questions, semantically analyse them, find the experts and the relevant answers and prompts you once it figured out the answer. I will try to communicate it better on the home page. Great feedback, thanks!
One would really need to sign in and ask a question to experiece this.
How would a hard disk controller detect encrypted data? It is essentially a (psudo-) random stream of bytes. Even if the controller is programmed to recognize such streams, it would be easy to first wipe disk by writing small random files all over and then wiping with 0/1 pattern. So any cached data is essentially worthless.
Playing God - The Challenge of Deciding Who to Feed
That's such an uncharitable reading I don't really know where to start. It's a bad decision because its only real-world consequence is to entrench Flash even further.

It does that by ignoring the state of play of video content, which is what could have driven the change to HTML5. To those guys it's as though they removed support for JPEG, frankly.

What's more, there are real, sensible, pragmatic arguments against doing this, and they don't all boil down to "wah but I has iPad". If anything, the iOS users are going to be absolutely fine out of this, because they're already where people with video content need them to be.

The only losers are people who would like HTML5's video tag to replace Flash as widely as possible. That's why Adobe is delighted.
Dell Adamo 13 Review, Specs, Price and Release Date Updates
An em is the width of an upper-case M. If you look at printed text you'll see that spaces are much narrower, in fact narrower than ens - compare a space with an en dash.
You should just switch to an SSD and not worry about it anymore
What are the downsides of git ?

So far I only heared that git does not handle large binary files well and supposedly it is good to keep your large source tree (larger than the Linux-kernel !?) into many smaller git-repositories.

And you have to learn something new and unlearn bad habbits.

The no-easy-GUI-problem has been solved, right ?
The smartphone market is also growing quickly itself, which is why Android managed to equal the installed base of iPhones only a few months after the marketshare (i.e. current sales) rose above Apple's.
My method for dealing with old drives:

- remove top plate of drive
- a number of heavy blows with a Sledgehammer.
- incineration.

This usually does the trick.
I'm using PyScripter. Pros: very light, excellent debug with remote engine. Cons: only Windows, only 32bit Python versions.

My friend prefers PyDev.

I'm planning to try emacs for python coding.

I've tried vim, tuned code completion, doc strings, other - but I just did not like it a lot.
You seem to need to play each level twice, which is kind of annoying. I eventually made it 150% through the first level, then closed the tab.

I probably would have kept playing if there was a single player version.
Young Entrepreneurs: 2 Minutes
I would love to see some links to more reading on this if you have some.
The current errata for volume 4A has 2 items: 1) he left off the left quotation mark around an equation in one place, 2) one entry in the index should be changed.

So people shouldn’t worry too much yet about the book being full of errors. :)