skysight-inc/HackerNews huggingface dataset:
Could someone in the hospitality industry _please_ explain the economics behind offering $25 worth of food for $7? And this is _after_ the price went up - I picked up about twenty of these this morning at $3.

While I realize that Borders is liquidating these, the fact that they believe $3-$7 is the appropriate value, suggests to me that they paid around groupon prices ($12) to the restaurants.

My only guess is that the restaurants are playing a bit of ponzi scheme with these coupons - using the revenue from new sales to pay for the food they are serving to previous coupon purchasers, and hoping that breakage gets them ahead of the game.

It all makes me rather nervous as to what will happen in the food industry should the music stop, and the restaurants get got with no new coupons to sell to finance the old ones.
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The majority of the population of the world doesn’t know how to do functional programming, so there’s a pretty big audience for whom this article is applicable.
Thanks, these look useful.
> Start with Haskell, ML, Clojure or something like that.

Just make it Haskell. If you want to learn FP, you cannot do better than Haskell. Of course if you want to write apps tomorrow Clojure is a pretty good choice.
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Thanks for the feedback.

Its designed to work global but I intend to only push it in my local town to start with where I can seed the data myself with the hope that it will slowly grow outwards from there.

If you set your location to "Brighton, United Kingdom" you can see some of this seed data that I'm working on.
Most of these guys are beginners and don't really do the job well. There are some exceptions, but most simply do not delivered. I have hired few freelances on vWorkers and only 1 of the cheap was good. With the others I spent lots of time fixing what they did. So you get what you pay for.

Of course don't forget the cost of living is cheaper there so even the good ones can work for lower payment than in US.
I wasn't concerned with his marketing approach.
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While I have also noticed many duplicate articles, one way the community could try to avoid them would be by making sure that they are posting original sources (as suggested in the official guidelines), and not random blog posts (like the post a week ago).

edit: I have just noticed http://news.ycombinator.com/item?id=2777508 , which AFAIK links to the same URL as this.
Let's say I'm a major American bank and I want a complete payroll system done, for internal use. This is going to cost me a couple million on the low side.

Why don't I do it with a $50 a week freelancer?

1) I don't trust him, at all. If he could implement payroll systems, why isn't he charging millions of dollars? He's probably copy/pasting "Yes no problem sir I will implement your system to the specified requirements" to 30 jobs a day and looking for a sucker.

2) Who is going to manage him? Me? If I have to manage him, he doesn't cost $50 a week, he costs ~$8,050 a week, because I'm the VP of a major bank unit. Talking to poor people is always a bad use of my time, because it competes with talking to rich people. (This is somewhat exaggerated but not false.)

3) Payroll systems are not a one-man job. After you get to team sizes of 20+, it really helps to have a system for recruiting/managing/etc them, so that you don't have to. I mean, at 20+, someone is statistically going to be getting married or quitting or dying every year. Do I want to deal with that? No. Let their boss deal with it.

4) If I pay an Indian freelancer $50 a week to make my payroll system, and the payroll system fails to ship on-time, I will lose my job because I did something which was freaking insane. There are things which, in American business, are insane, and there are things which are Known To Be Not Insane. Paying large, established technology consultancies millions of dollars is Known To Be Not Insane. Even if the project fails, it is not your fault, it is their fault. If the $50 a week Indian turns out to not be God's gift to programming, hiring him was definitely your fault.

It gets more complicated, but this hits some of the high notes.
Not true at all. Such complaints are common about any community here though. So don't pay attention :).
I really like the idea. It really depends if you can populate it enough to get an initial user base.
Very clever.

I'd like to know if there is any performance hit though, NodeInserted fires on basically on every single fraction of page creation.
Interesting, I can't see myself using it but I could see higher profile people (celebrities etc) using it. Though what advantages does it have over something like http://su.pr/?

Also the logo in the toolbar is sticking out like a sore thumb, should be much smaller.
Truth be told, the article doesn't say how well they work at night. I don't think that it'll work just as good, but that doesn't mean it won't work at all.
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Except in attributes, where it depends on what the character following the last character of the entity is.

Yep, the problem here is that people use parameters starting with an ampersand without escaping the ampersand in URLs used in <A HREF=>.
I've been following Enviromission for quite a while now (maybe since 2001?). I check out their website once a year or so to see how they are going. They have been championing this technology for quite a while.

I think it's sad that there are so many people doing back of the envelope calculations and wasting time typing them into Hacker News. There are 100s of millions of dollars involved people. Someone qualified will check the figures. And really it's not rocket science.
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What if you tagged an embarrassing photo of me, shared it with a circle of hundreds of co-workers (that you excluded me from), and then not only do I not know the picture is out there, but co-workers can see it by visiting my profile and looking at pictures tagged of me?

Let's break this down and relate it to physical (they're both real) photos:

What if you tagged an embarrassing photo of me

Considering only viewing the page for the photo at this point: With physical photos it's possible to write someone's name on them, and online it's always possible to add a description identifying who is in a photo, so being able to tag anyone doesn't increase the information storage of the system.

shared it with a circle of hundreds of co-workers (that you excluded me from)

People can show physical photos of you to other people without you knowing. They can send or grant access to digital photos without you knowing. Being able to grant access to photos of you on a social network is just an extension of this. Granting access so that people can see the photos when viewing an album or see an album in an album list is (or could be) separate from where or how that permission to view the photo is made known.

and then not only do I not know the picture is out there
We don't know that about physical photos, or photos that are sent in emails.

but co-workers can see it by visiting my profile and looking at pictures tagged of me?

Now this would be problem. There shouldn't be anything viewable on your profile by other people that you can't see yourself. Photo's should only be able to be shared and sent in private by explicitly sending a message to a group of people.

I don't think that scenario is possible with G+ at the moment. Tagging someone in a photo automatically gives that person access to the photo.

What G+ currently lacks is a way to tag someone without giving that person access to the photo. That's not perfect but it's better than the alternative which you described. Hopefully they'll find a way of making it possible to tag someone in private without putting it in front of people in ways that it's not possible in the physical world. You can't pin embarrassing photos on people without them noticing.
Hm, allowing config in code make me happier than relying on app.config. It's more flexible, particularly where there are tests that use different configurations.
This is fantastic! I absolutely love AirBNB's story because it shows that good things can come to those who persist against all odds.
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Just LOOK at all the dev time you save not creating DB tables! /sarcasm
Given that you're releasing this as open source, why not put it into a GitHub account instead of Pastebin?
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Thanks for the feedback!
I see two major advantages, first is the vanity URL second is the stamp which basically suppose to elevate your social networks exposure.
Ok, TDD didn't help with designing an algorithm for Lychrel number - because you just don't get around implementing the loop that tests if a number is a lychrel number, and it's very simple.

But to me that's not the whole purpose of unit tests - the most important part for me is that it tells you very quickly when you have bugs in your implementation. Somehow the author neglects to address this very central point.
It's quite interesting why nobody's talking about making the light bulbs properly. For example the world's oldest still burning lightbulb in Livermore [1], which represents the technology when the bulbs were made to last.

Here in north the energy efficiency is bit different than in south. The heat the lights generate warm up the house and you cannot calculate the waste as you would in the warmer parts of the continent.

[1] http://www.centennialbulb.org/
Nice idea, the problem I always have with sites trying this is that they don't have enough activities in my area (That I know exist).

You need people to submit events in their areas, so how about a gaming mechanic. If you get random people to submit as many events as possible (Don't specifically target the event owner (Only 1 event)) and reward them somehow (Badge, payment, physical prize), it could work.

Make it cool to use SplashActive.

I'd also get rid of the advertising until you are abit more popular, it's just a turn-off that no one will pay for until you have a large user base.

The title in the header could be shortened to "Find activities in your area"

Finally, I hoped you had fun making this, I like it's simplicity.

Good Luck!
- Matt
The other aspect you're missing is the probably somewhat larger energy consumption from non-residential properties.

Wikipedia [1] says that the energy consumption of the US is 25,000 TWh per annum. Looking at the top rated comment and picking instead a CF between the two (I used 0.6); we're looking at this tower producing in the region of 1TWh.

So you'd actually need about 25,000 of these towers to provide for the energy requirements of the US. Ouch.

Edit: obviously, this is for the complete replacement of all existing energy use with clean renewable electricity. The gross US electricity production is given [2] as 4344 TWh (2008).

[1] http://en.wikipedia.org/wiki/Energy_in_the_United_States [2] http://en.wikipedia.org/wiki/Electricity_sector_of_the_Unite...
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You know how you can accelerate your page even further?

Don't use 1.49mb large GIF animations as background images...
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What he meant to say was, "I wish PHP has a 'string' type instead of octet buffers".
As a US citizen, I find the diminishing mens rea requirements very disturbing. One should never be guilty of a crime despite making a reasonable effort to avoid the illegal behavior.

To give an example, in Florida, one is guilty of a felony for having sex with a person under 18 (if the older person is 24 or older) no matter how reasonable it might have been to believe the person was of legal age. A forged driver's licence that would fool the DMV and get the bartender off is no defense here; it's a strict liability crime.

I would favor a Constitutional amendment blocking the enforcement of any criminal law that did not include a culpable mental state for every element of the crime. To implement such a change without crippling the legal system, it could make the default mental state criminal negligence if none is given.
Reading the bulb's wikipedia article, sounds like it is not really the bulb's technology that's responsible -- it is very low power (4 watts!), and has a dedicated steady power source. (I previously lived in an apartment with erratic power, and incandescent bulbs only lasted a couple weeks until I got the landlord to fix it.)

If you asked engineers today to come up with a long lasting 4 watt bulb, they'd probably do just fine.
But if I'm not mistaken they can get indefinite patents as well which seems more like abuse than privilege.

17 years as well...seems like to long a time frame to me., but again I'm not expert. I'd have gone 10 years max.
Thanks for the input.

I'm trying to work out some sort of gaming mechanic, just trying to work out what the reward would be as I'm not sure badges on a site like this would be enough.

I take your point about the advertising, I think I will look at hiding that bar until there is much bigger audience.
The same can be said about the pictures: the fact that putting them online is insecure doesn't mean people have to be OK with their provider sharing stuff forcibly.

Not to mention that the transport mechanism for pictures on G+ is much safer than email, since it only goes through one server (unlike email, where there's usually at least two MTAs), and all transmission is done through HTTPS.
Quick remarks :

* I could test it myself, but I expected to have in the article detailed information on the different possible states the document can have when my callback is called. The questions I know the answer when waiting for the whole document to be loaded : Is it half loaded ? What is the DOM state ? Is completely loaded ? If not, have the document JavaScript code been entirely ran ? and so on. This kind of question left unanswered often lead to hard bites.

* why using "itself" ? I would have used a "sensible default" : when no context is given, use the waited DOM object instead of an arbitrary value (document), and use something else when it is explicitly given. The "itself" thing should be left as an internal flag IMHO.
Something like this should be built-in in jQuery.

You can do $(document).ready(), why not, the admittedly syntax sugared, $("div#main").ready().
I have worked in 3 different organizations in India and myitreturn.com was commonly used everywhere. So, you have some tough competition.

Also, have you thought about the cash inflow. During the filing time (April-July), we will have people paying for the service, but what about the rest of the year?
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The exact Sudoku URLs mentioned in the article, just checked/updated:

Ravi's article: http://ravimohan.blogspot.com/2007/04/learning-from-sudoku-s...

Peter Norvig's solver: http://norvig.com/sudoku.html

Ron Jeffries' attempts:

http://xprogramming.com/articles/sudokumusings/

http://xprogramming.com/articles/oksudoku/

http://xprogramming.com/articles/sudoku2

http://xprogramming.com/articles/sudoku4

http://xprogramming.com/articles/sudoku5

And, as dessert (Ron is very frank about his failures):

http://xprogramming.com/articles/roroncemore/

"This is surely the most ignominious debacle of a project listed on my site, even though others have also not shipped. (Sudoku did not ship and will not. Shotgun will go forward if the Customer wants to.)"
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Has this alleged assault been proven? I don't recall reading about any charges being filed. Based on her original blogging about the alleged incident, I suspect we are not getting the full story.
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How about asking event owners to submit more events in their area while submitting their own, in order to gain a more prominent position on the listings.
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>Here's the meat of my point. The correct answer when writing software is "use a library". The correct answer when answering an interview question is code with minimal dependencies

Which can be paraphrased as:

"Here's the meat of my point. The correct answer when building a wooden shack is "use a hammer". The correct answer when answering an interview question about building wooden shacks is to make the hammer first".
Whut?

Listen kids, testing is a tool for HELPING THE DEVELOPER, not for using to engage in a "more pious than thou" dick-swinging my Cucumber is bigger than yours idiocy.

Testing is about giving YOU THE DEVELOPER useful and quick feedback about if you're on the right path, and if you've broken something, and for warning people who come after you if they've broken something. It's not an arcane methodology that somehow has some magical "making your code better" side-effect...

The whole concept of "test driven development" is hocus, and I speak this as someone who writes a lot of tests, and who charges a lot of money for fixing test suites. Instead: developer-driven testing. Give your developers useful tools for solving problems and supporting themselves, rather than disappearing in to some testing hell where you're doing it a certain way because you're supposed to.
That, and maybe they could also host kids' birthday parties where they worked on one if these little projects.
too right, oh man. so distracting to read
From my reading of the relevant wikipedia page is looks like ESA gets the private company EAD Astrium to develop Ariane launchers and Arianespace, which is also a private company, to actually launch them and market them for commercial launches:

http://en.wikipedia.org/wiki/Ariane_%28rocket_family%29
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I wonder what effect this could have on the local climate. Pumping out hot air into cool air at height of 800 metres has got to have some affect.

Now if the base is used area is used for growing plants then the air emitted at the top would be moist, which I imagine would cause cloud formation as it meets the cold air.
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Indians are self obsessed with such things. Time to move beyond this silly rhetoric.
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First write the high level test. Then start implmenting and when you writte a helper function, write a little test for that function too.

Don't just write all the test for every little function in the beginning thats stupid, How do you even know what helper function you need to implment.
The site reminded me from a TV documentary which stated that there was a light bulb cartel which enforced the manufacturers to build bulbs that lasted only about 1000-2000 hours to get more sales. I'd like to link to the video, but I saw it from finnish national television.

Edit: Oh yes it was linked on that site. http://www.catalanfilmsdb.cat/en/productions/documentary-tel...
Yeah, although sometimes it's not particularly obvious. I've noticed a lot of links to a site called http://ontwik.com/ being posted in the last few months (a Google search for ontwik on news.ycombinator.com shows over 100 results). It's a site that seems to take embeddable videos from YouTube, Vimeo and the like and turn them into pages like http://ontwik.com/html5-2/html5-games-with-rob-hawkes-of-moz... .. I can see why people are linking these things up, even though it should be the original YouTube video getting the link.
Some people like to read an entertaining story. This guy is clearly combining his love of storytelling with his love of typography.
Isn't this how Jekyll works as well? It's just that the _posts directory is special. But the base entity is a "Page" which exactly functions as you mention unless I'm mistaken.

Also the YML frontmatter is fully accessible in the template engine (is that similar to the "data associated to documents" you mention?).
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How would it be creepy? It's just like any friend you would make. You have to start by talking to a stranger.

If you want to do it in a formal manner like a classroom, a workplace, a meetup, then that's cool.

I simply don't want to limit myself to just that.
Do you have an answer to this question: http://www.quora.com/Would-it-be-theoretically-possible-to-m...

Thanks!
There are a couple tricks to effective unit testing. Ultimately though, the goal is to write non-brittle tests. That is, tests that won't break due to unrelated changes. Get this wrong and the cost of maintaining your tests will outweigh the benefits.

Achieving this, in my experience, comes down to disciplined used of mocks and stubs. I've seen people lean too heavily on them, or not heavily enough. The biggest problem I've seen, particularly common in the Java world due to jMock's datedness, is over specifying expectations on mocks. Stubs which can provide canned responses (whether through a framework or manually rolled) are absolutely and totally the most underused yet useful tool in your testing arsenal.
> That would push the costs down by a factor of ten, at least. For man-rated space flight!

I don't think so. Those 7 people need all the "junk" up there too. it's their living quarters, their food, their science experiments, etc.

Maybe you launch it separately. But don't forget about the cost of that.
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