skysight-inc/HackerNews huggingface dataset:
Dyman Judo Club Association & Dyman Karate Associates: Class Schedule
Classes are held at:
75 1st Street Orangeville
(Downstairs next to Mac's Milk.
Watch for the Millenium Door)<p>Teenagers & adults:
Tuesday & Thursday – 8:00 – 9:30 pm<p>Kids 7 - 14:
Tuesday and Thursday 7:00 - 8:00 pm<p>Kids 4 - 6 years:
Tuesday 6:00 - 6:50 pm
BTC China CEO explains cut off from deposits (Video)
wow, looks great! I am looking forward to WebRTC support (it is on their roadmap for Q2 2014 as it seems).
Face.com did the same type of thing. Facebook bought them. I don't buy into the concept that Chinese companies don't innovate. But if I did agree with the statement, this post does nothing more than show more 'ripping off of western ideas by China'
Android 4.3 Roll-out for Xperia Z Tipped for 19 December
Puppet Module: security::tcpwrappers with Hiera
The "piggy" drawing in the middle is amazing. Good work overall!
Vimeo is the way to go.
The guy vandalised property, wasted police and court time so he could "have an experience." This is why his sentance was harsh. The judge wanted to deter this nonsense going forwards and the judge is right to do this. I have little sympathy for his treatment.

> The whole process this guy went through to report on the state of affairs is valuable because it puts the depth of reality on what is otherwise a known but relatively abstract situation. We all know that the judicial system is unfair in an abstract sense, but without seeing actual, real-life examples it does not get driven home nearly as strongly.

The key point here is that you get can get real-life examples by interviewing people caught up in the legal system. There are plenty of them, it isn't difficult to fact check the circumstances of their arrest. All this is possible without wasting police time.
It's a latin thing. I'm Portuguese, and we're also devastatingly critical of our country. Talking to a French colleague yesterday, he also bemoaned the negativity of his countrymen. Spanish people also tend to be suffer from the same problem. I wish I knew how to push people into constructive criticism.
http://www.boredbanker.com/
Have you done any usability testing? If I had not been told I could vote if I mouseovered, I doubt I would have guessed.
Youtube or Vimeo, unless videos are your product.

Video streaming is a major pain point that should be outsourced if possible.
I found it scrolled much smoother in Safari than in Chrome. But I agree, dislike the heavy feel of the site regardless of how it scrolls.
Unfortunately this is miles away from how email has been marketed to (and is used by) the general public.
Thinking people in advance when you're asking them and not
expecting them to do something always struck me as a bit rude. It
gives off the implicit expectation that they're going to do as you
ask, and you might as well thank them in advance since them agreeing
to do what you're asking is just a formality.

Personally I just express how much they'd be helping me if they did
what I'm asking and how much I'd appreciate it instead.
Seriously? Is that a legitimate question?!

Face recognition is one of the most human traits. Making it into software humanises anything that that uses it.

What about that awkward situation where you forget someone's name?

Building on that, auto linking twitter/linkedin profiles with people at networking events or conferences

Auto attendance monitoring at school/work?

Indexing TV shows/movies/online videos by who was on the screen at any given time?

Retail analytics, to track who keeps coming back to look at the same thing every day?

Automatic scene extraction for action cams, where it scan hours of footage from multiple cameras for scenes with the same person?

"best scene" generation for videos, where it software synthesizes new video scenes from footage of multiple people and stitches together new scenes.

I could keep editing this comment and thinking up new ideas for hours. Face recognition has to be one of the most exciting pieces of technology available.
Vídeo Viral das Redes Sociais em 2013
How did you lose your best friend?
Changes to the SecretKeyFactory API in Android 4.4
Has Microsoft Gone Nuts?
The main thing for me is that its virtually impossible to build a complex system (essentially complex that is) without having good feedback and then adjusting the design to fit. That feedback comes from testing, review and the customer. The shorter the feedback cycle the quicker you settle on the target. The XP book helped spur this on in an age where a lot of people had lost the run of themselves. However these ideas were around and practiced since software development started:

http://www.craiglarman.com/wiki/downloads/misc/history-of-it...

And before that for other activities: "Plans are nothing; planning is everything." - Dwight D. Eisenhower
The chat box is incredibly obnoxious, as is the big red "BUY NOW" button right on top of the video I am trying to watch in order to _learn about your product_.

The site feels desperate for sales. Preventing the chat box from continuously popping up and killing the "BUY NOW" video overlays would be a big help.
Great answer.

I caught myself thinking along the lines of "of course it's not possible, that would be preposterous!", but as you say, a watch spring mechanism does exactly this.

The key concept here is "stores energy".
Anyone visiting from Google sees the full article with no paywall.

You can test this yourself:

https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&c...
Except that Austrian "Economics" takes an ideologically anti-empirical stance, so it can't actually be called part of any reputable science of economics.
The animation tears, and it needs antialiasing.
investment and speculation are two sides of the same coin (pardon the pun). all investment has risk. bitcoin speculation is a high risk investment. this may not be good for everyone but its an investment nonetheless.
What would you do with this case then?

.outer {height: 1200px; width: 800px;}
.inner {margin: auto;}

<div class="outer">
<p class="inner">This is centered vertically</p>
<p>But where should this go?</p>
</div>

And what if both p elements had the `inner` class?
Wrong question, I think. This thing is barely a currency. It has built-in deflation, which makes it a great long-term store of value (assuming it isn't killed somehow) in a world of depreciating alternative stores of value, but a bad currency. If you want a currency for day-to-day use, USD is what you want. If you want to hedge against USD depreciation, BTC is one option.
Thanking in advance is either rude, because you're expecting them to do something, or different, because you're thanking them for taking the time to read the email and consider the request.

If I do something for someone and then never hear from them again, I would be somewhere on the scale from disappointed to annoyed. A one line genuine expression of thanks takes very little time for the recipient. Composing it and getting it right can be difficult and time-consuming, but is, to my mind, always the right thing to do.

Make it brief, make it genuine.
Is that a joke? Why would anyone vote to make that a crime?

I through that three felonies a day is an exageration, but I'm definitely guilty of switching train cars.
As far a web stuff is concerned, I wouldn't call anything other than pure HTML minimalist. Maybe I'd suggest a table is a minimalist framework.

But judging by the other comments, Im the weirdo. Which is fair enough.
The only reason I can think of is that there might be penalties for paying off the car loan early. But there is no excuse for the credit card debt.
The tyranny of choice [pdf]
Native "enums" (types) in PostgreSQL are a mixed bag. They do have some advantages:

- you can treat them like strings (e.g. `SET status = 'approved'`, but they are a fixed size (four bytes)

- when queried they appear as strings too. Nice for debugging

- if you enter an invalid value (anywhere, not just in Rails) PG will throw a wibbly

But the biggest problem with enum types is if/when you want to add a new value to an enum type, it's annoyingly non-trivial. You can't run `ALTER TYPE ... ADD` because it doesn't work in a transaction. [0]

Instead you need to drop the type, recreate it (with the new value) and then alter all the tables that use this type. If you have a huge DB this can get a bit silly, although you can at least do it all in a transaction.

It is fairly trivial to add support for real Postgres enum types - https://gist.github.com/clarkdave/5936375 - but it's not as elegant as having it properly supported by ActiveRecord.

As other posters have mentioned here, it'd be useful if Rails' enum support used text instead of integers. You could then set up a Check constraint in PG to enforce the correct values and stop invalid data slipping into your database from other sources, whilst keeping the nice sugar in ActiveRecord.

[0] http://www.postgresql.org/message-id/3543.1317224437@sss.pgh...
Are you with the right partner?
Clustering nginx with DRBD, Corosync and Pacemaker
This is such a beautiful result.

The simulation method used is Material Point Method, a technical that is used in engineering simulation but hasn't really been used much in Visual Effects. This will likely change now that there are these impressive results.

The one issue I've seen people in the industry mention about this paper is that the the simulation times are quite long.

https://en.wikipedia.org/wiki/Material_Point_Method
51 US Sailors from Fukushima radiation illness
Business cards can slide
Am I right in thinking that at 1:20 there's a drone flying along behind?
I think this became recommended practice in the days when usenet and email delivery was unreliable, bandwidth was expensive, and clients didn't have threaded interfaces or fold quoted sections. It's since been slavishly enforced on newcomers by groups that often have no idea of the original reasons for these protocols and why some may be no longer relevant.

Obviously sometimes it's most efficient to quote and interleave, when you want to reply to several points in a way that would be confusing without it. But with modern systems it's also fine to write a reply that doesn't make sense without the message it's in reply to, or a reply that quotes the whole message.
Yep, loved this one. Brilliant!

"You network privileges will be revoked". Well that worked.
>It has built-in deflation, which makes it a great long-term store of value

It also has a very large risk premium, which makes it inferior to other options for solely a long-term store of value.

>If you want to hedge against USD depreciation, BTC is one option.

Bitcoin is an imperfect hedge against U.S. dollar depreciation. There are valid reasons for investing in Bitcoin, but this should not be one of them.
That's nothing.

I went in a BIG well known UK hosting company DC (which we colo'ed in) back in 2003 and they had racks of machines sitting on top of books on the bottom of comms racks rather than proper racks. We had to get a DL380 out from underneath a pile of 5 others. Not as easy as it sounded.

Cables everywhere. Power cables taped to everything. Total mess.

OpenBSD one is bliss.
Exposed Vocals - Be Heard - Magnificent
Loosen the newsroom’s chokehold on the brand
Why is thanking in advance not an expression of professional confidence in the person you are emailing? And there for a huge compliment?
This list is a lot more extensive for javascript: http://microjs.com/#
What Logic Is Not
There's a few things weird about this story. Are you really proud you have a leveraged position in bitcoin? Isn't that among the riskiest positions you can take on a very volatile, illiquid, and possibly illegal asset? That's totally a personal choice, but it's certainly not one I would or a typical retail investor should ever take. Your decision to buy-and-hold during a sell off in the Spring is at best an anecdote and certainly should not be used as any evidence on what behavior to do now.

Government intervention is just one of a few significant black swans: blocksize changes, verification (i.e. mining) fragmentation (effectively doubles the money supply for each split), and SHA collision attacks becoming practical. None of this should ever happen, right?

However, this line should be clarified in every context:

> took out a student loan and bought in at $225.

In the US, this is generally _not OK_. To everyone else in the US, do not read this as a positive example. Do not use student loans for bitcoin or any other investment.

What can I use my federal student loan money for?
You may use the money you receive only to pay for education expenses at the school that awarded your loan. Education expenses include such school charges as tuition, room and board, fees, books, supplies, equipment, dependent child care expenses, transportation, and rental or purchase of a personal computer. Talk to someone at the financial aid office at your school if you need more details. [1]

[1] https://studentaid.ed.gov/sites/default/files/your-federal-s...

(Of course you may have been one of the small percentage who took out an unregulated private loan, but the principles behind those are generally the same).
Or, the price could plummet even more. Money invested needs to be disposable, otherwise, it's just too risky an investment right now.
In the short section entitled "Success" toward the end of the article, the author repeats the sentence "Extreme Programming succeeded" five times, slightly rephrased each time. To be perfectly honest, I find it hard to comment on this without sounding derisive. There is no hint at what "succeeding" even means for a software methodology, and even if we assume we know what "succeeding" means in this context, there is not a shred of evidence for the truth of the statement. A poorly defined statement repeated five times without evidence or proof.
I used to slightly better hours in Hong Kong, but now I hear it has got worse (i.e., other have echoed the 10 hours per day number that you mentioned). I was offered an Executive Director role at a big bank and could not get myself to say 'yes' because we all know what that means : blackberry operator 24 x 7. :-(
Factors Preventing Start-up Success
HoverZoom for Chrome is infected with malware
Buildings stock Footage
Couldn't this be fixed with some high powered UV lights? (Though I recall some interaction between sunlight & drinking water)

And wouldn't flouride/chlorine kill it?
We are the freak show
French here, same things happens here to a lesser extent.
The fact that foreign don't have to pay fees (as well as the local), lots of foreign students come here and go home once they completed their studies.
Nice read; R. Ellis nails it by picking out the key sentence:

My rules are the axioms, and they are axioms not because they are really, really true; they are axioms because I say they are.

Always remember: mathematics are abstract, you (the mathematician) control the system, so you pick the axioms.
After the peak of $1100 and being pretty happy last week, and the subsequent decline, I sold my stash at $800 last week, no regrets.... yet.

Probably a great time to buy.
Earn It. Don’t Buy It: An Interview With Jim Tobin of Ignite Social Media
Yorkshire and Humberside Police "Mad Friday" Tweetathon
> Probably a great time to buy.

Why?
I dont know anything about rendering or simulations, but would this method be possible for real time rendering? or is it only applicable for offline rendered stuff (like movie sfx)?
RAM pricing is ridiculous, no one will order it like that, you can buy RAM for 1/3 the price and just replace it yourself. But i will buy a stock version. Plus a Dell 4K 28'' monitor. As soon as my Christmas bonus arrives :)
Business Guy: Why Engineers Don’t Like MBAs Looking For Tech Cofounders
> Probably a great time to buy.

He or others like him may not have sold off all of their coins and need dumb money to keep the price afloat just a little longer...

If it were a great time to buy, he would have. Follow the actions and not the words in markets like this.
List of mergers and acquisitions by Facebook
Not a terrible choice. Most people are free from school and work around this time. With the course being short, it should be doable during the holiday break.
Useful. Been using pngcrush on the console but it can't compress much images with alpha transparency afaik.

Do anyone know of a CLI-alternative to pngcrush that would support alpha transparency as well?
Smarter log handling, the case for opportunistic logging
Unfortunately it only becomes increasingly evident to me that most people don't make any decisions based on merit. The dog and pony show is much more important than knowing your stuff because honestly, most people don't know anything well enough to know if you know your stuff or not anyway.

If your benefit is dependent on any level of critical analysis, you've already lost. Learn to create a positive emotional response in people. Don't rely on their ability to rationally function.
I know very little about it too, but I think advances in video game visuals have shown that it's really just a matter of time. Check out Uncharted 3's real-time dynamic water effects: http://www.youtube.com/watch?v=BhzMR-vxYIk (Skip to about 2:50)
So gross exagerrations is OK but technical nitpicking is not,right?
He thinks that the price is near or at the bottom, I suppose.
Clearly my sample size is too small!

Any insight into how foreigners take positions in the Chinese economy with RMB they obtained through USD->Bitcoin->RMB transactions?

- Currency: easy, as you just need a passport to open a bank account
- Starting a company: harder, as I thought that opening a WFOE required the capital to be injected in a specific way at a specific step in the process
- High interest deposits: these seem either risky (some of the bonds sold by banks) or unavailable to foreigners (yu'ebao 余额宝)
- Real estate: some cities require a hukou or minimum duration of residence
- A shares: need to be a PRC national
- Angel investments and unofficial loans to small businesses?

What else?
I've tried sticking to the proper way for a long time (there was even a plugin for Apple Mail at the time), but eventually gave up on it after getting one too many responses of the "I can't see your email, all I see is my own text quoted" type. This saddens me, but I wasn't about to go on some holy crusade of educating everyone I needed to communicate with about the sin of top-posting.
That's just the specification. Doing exactly what the spec says is the definition of a naive implementation.
True, sorry for not being more sceptical in the title. If I could edit I would. I don't particularly follow the Mac scene, I picked this up on Twitter from some hardcore game developers I follow.
It's possible, but not too likely at all at this point, that China will reverse this decision. I don't know how far BTC will fall, but let me tell you this. If it falls to under $10 like this person[1] says, I'm going all in... $5,000 USD's worth because I'm a fool. If, by some improbable & unfeasible way, China does reverse and BTC reaches $1,000+ again my cheers will be so loud that everyone on HN will actually hear me.

1. http://www.businessinsider.com/williams-bitcoin-meltdown-10-...
I don't know how complex the computations are, but if it's close to the computing required by standard loose-accuracy water fluid simulation, we could certainly see it in-game, definitely possible even for this gen of consoles. I speculate as water simulations is quite doable even on 5 year old hardware, though tends to be inaccurate. I remember seeing some Nvidia demos showcases things like softbody destruction and collisions a few years back too, so that also could translate.

There are also some really rough tessellation techniques in use to simulate ground snow walking in games out now, like that Assassins Creed with the native americans.
This simulation takes on the order of minutes per frame. Perhaps an optimized and simplified version could work in real time in the future.
Wrong question, I think.

Bitcoin aspires to be a currency and is presented as one, at the same time as trying to boost adoption by presenting itself as a cannot fail investment (hence built-in depreciation, mining etc), so I think it's a fair question.

If I declare white pebbles currency, and that there are only 20 pebbles acceptable, and each year I'll throw one into the deep sea, I have an appreciating currency. What is missing in my pebble currency is confidence, an intangible and difficult thing to acquire, and an easy thing to lose.

If you want to hedge against USD depreciation, BTC is one option.

If you want a hedge against USD depreciation, given the huge volatility of Bitcoin, I'd say it's far worse than most other assets, or even most other currencies. A hedge against inflation should not be volatile, it is meant to reduce risk, and ideally it should have an intrinsic value or very predictable demand.

It should also be in a regulated market - I wonder which of these exchanges will go bust because of this crash? If they guarantee a price in USD for bitcoin to users and the price plummets straight afterward, or regulations mean they can't sell the coins, they're going to be in an awkward place. There are no guarantees that anyone who has money in bitcoin will ever be able to convert it out into another currency, because any of these companies could go bust and leave their customers with nothing. That's a very different situation from most other assets.
Ask HN: What tool do you use to manage your app's assets/images?
An app, whether a SaaS or mobile app, needs many images of different sizes for all different platforms:
- the iOS App and Google Play stores (icons in sizes X/X'/X''/..., screenshots, ...)
- your app's Facebook page (icon in size Y, cover, ...)
- its Twitter account (icon in size Z, cover)
- ad campaigns
- ...

What tool(s) do you use to manage (upload/resize/edit/version) them?
It says on the about page it is updated every three hours.

http://earth.nullschool.net/about.html

EDIT: If you click on 'Earth' it brings up a menu with time controls.
The top 20 most viral companies of the decade (and how they performed)
Perhaps in China agency needs court order? :-)
Then people like you would dismiss that "unreliable source". Like how the mass surveillance stuff had been leaked previously even by insiders, but was dismissed for years.
But you can pip install any other templating language and use it in flask. jinja is just the default.
The video is well worth watching. After several minutes of dry technical commentary, you suddenly get "Now we destroy a castle with a cannonball!"

The snowballs colliding is extremely impressive.
> It is more ethical for McDonalds to make a higher profit, and pay lower wages

This is a perverse use of the word 'ethical'. It attempts to remove corporations from any responsibility towards their employees.

If it is, as you say, ethical for a corporation to follow their shareholders wishes and maximize profits and the cost to wages,

then I consider it extremely unethical for shareholders to insist upon this, knowing that the result is exploitation of employees.
A program made up of loosely coupled pieces has several advantages over one that is more monolithic. It is composable – all you have to do is put the parts together, then you have your complete program. It is easier to modify, because parts can be swapped out with minimal impact. It is easier to test, since the parts can be tested in isolation, which makes testing the complete program much easier.

As for reuse, I like this quote: "Don't aim for reuse. Write small, independent components you can reason about, and the right pieces for reuse will fall out."
Jessica Kerr @jessitron on Twitter
> Skip to about 2:50

I think you meant to say 5:20 ^^