skysight-inc/HackerNews huggingface dataset:
First Startup Chile Meetup in NYC
If you're curious to learn more about Start-Up Chile and are thinking of applying (round 10 applications are being accepted from March 4 - 25), be sure to join us.

I'll be giving a presentation on the organization and walking you through the application process and finish the hour with a Q&A session.

Food and drink will be provided by Perkins Coie so we can mingle on the premises.

RSVP here: http://bit.ly/P4nkfe
I find the comments that people can't understand this method to be kinda bizarre.

I haven't heard of common core, but after a few moments of looking at this, the algorithm becomes clear: 432 is between 80 and 800, so repeatedly subtract 80 until you get below 80. Then repeatedly subtract 8. Keep track of the subtractions you're making, and add them up.

Slower and more verbose than the method I learned, and I'm not defending (or condemming) it, but I kind of wonder if some people have a reaction like "this is not what I would have expected to see, and I can't immediately understand it, so it sucks".
Bookmarked! + Nice work!
I agree. The fact that they pulled a black box up from the bottom of the Atlantic after sitting on the bottom of the ocean for two years show how durable those things are.
I find the Facebook comments interesting - lot's of "I can't figure this out". I suspect, strongly, that a lot of people learned the traditional manipulation but never understood why they were doing it. This just make it explicit: 4 ten's, and so on.

Now, if children are being forced to use this technique throughout their education something is wrong. If this is a step on the way to the standard technique, then so much the better. I recall pre-calc: we were forced to do a bunch of cumbersome math to compute limits before being taught the 'easy' way, because the easy way, being symbolic manipulation, could obscure what is going on and keep you from learning the concepts behind limits. Same thing. I rarely do any math the way it is initially taught. When is the last time you wrote -3 = -3 on both sides of an algebraic system to move a 3 to the other side of an equation?
Every commercial airplane has a GPS tracker and a transmitter which sends its vital info on air, which everyone can receive and track on sites like http://www.flightradar24.com/ .
Mega bullshit!!!
Pure waste of time
Not really the same thing as an arbitration clause unless you can persuade a judge that the arbitration decision would have contradicted employment law in some way.
I don't think people realize that the purpose of elementary education is not to teach the kids how to do something -- it's to teach them how to think about doing something.

This method is longer but it helps them grasp the concept of what division is so that they can then extend that thinking.
> because the only way we can stream such data over oceans (which make up most of the world's surface area)

I think this hits an important point that's lost in the media scuffle that inevitably ensues.

Because modern travel has made the world so much smaller, most people have a difficult time trying to fathom precisely how vast the oceans are and that we base our notion of coverage on what familiarities surround us--that is to say: land.
Can someone explain how these guys managed to write their software in such a way that there was zero automatic verification that what their database said matched what was in the wallets, even just a cron job that ran once a week or something? I mean, I'm assuming there's a good reason, because I can't figure out how anyone could overlook something like that.
Some of my older relatives spend a lot of time going on holiday. They get to go on coach tours, see lots of airports, take cruises, swim with dolphins and all that stuff. Clearly they enjoy being waited on at various hotels around the world or they would not do it. However, it is not like they ever have 'the time of their life' and an experience that they just have to tell everyone about. They are content doing what they do, it fills the time.

For me though I need more. I need to not know if I will come out alive, I need genuine hospitality that need not be paid for, I need to meet people along the way that are not directly connected to the tourism industry. I need to be treated as a guest and a human being, not just a nice-enough tourist. I also don't need to be poking cameras in people's faces or writing about them. In summary, I need adventure, as in the stuff you cannot have an itinerary for.

In some ways your back-packers comparing notes on who stayed in the scummiest places are a bit like my relatives, just at a different point in life and on a different trail. At times on my travels I have crossed paths with them and their backpacker dives, however, I am typically able to avoid all that. I can call someone up that I met on the road and stay with them, unannounced. They might live in some unusual house, have some interesting job and be more than willing to give me an insider view of town rather than what I would discover as a tourist. That is what 'authentic travel' is about.

I should say that I have a secret weapon - a bicycle. With a bicycle you don't stay in the small out of the way places just to be more 'cool'. It is a necessity, you cannot just blast 500 miles along the big highway, at best you can do 50 miles in one burst before needing to stop for at least water, and on little roads 'off the tourist trail'. On the bicycle there is no windscreen between you and the world, you are actually in it and part of it.

Regarding writing, a retrospective account is always wrong, even if filled with tedious 'specifics'. There is no way of conveying genuine anticipation once the moment has gone, in your writing this knowing-the-answer-already aspect is not something you can disguise honestly, merely feign as the feeling has passed.
There are things that are open source but not "Free Software" in the FSF sense of the term. Android springs to mind (not all pieces are open source, largely developed as close source with the source published after the fact, etc.)
> a status report every two minutes or so would be technically feasible and not terribly expensive?

...but also not very useful. Two minutes is a long time when you're traveling at 570 MPH - in the event of a catastrophic explosion a plane could be on a perfectly normal flight path one minute and then gone the next, and you still have a vast radius to cover when looking for the wreckage.
Yet, we still lack rail on routes that would likely prove to be popular in West. E.g., between LA & SF or LA & Vegas.
The daughter is correctly conceptualising number by following this method (and, although I cannot see the answer, her method is executed correctly up to the point I can see). She doesn't seem confused.

Her method is not perfect but is very well developed if we compare her handwriting. If the father genuinely thinks that this is an easy problem for her age group, then her handwriting is behind where it should be.

So, Daniel Bongino, what's your problem with this? Your child is developing her number skills just in the same way that she is developing her fine motor skills. That's great.
Having seen this talk, I highly recommend it, even if you don't know Erlang (just skip the Erlang slides). It's a great overview of Haskell for anyone looking to quickly become productive(-ish) with the language!
Thanks dude :)
Despite claiming you don't understand the gain, you just said it: students gain a more complete understanding of how multiplication and subtraction are related to division, which is the primary goal of this stage of math education.
The obsolescence of Hedge Funds & the rise of digital agents
Let's start estimating the technical challenge here (we're supposed to be techies, after all).

Bandwidth: quick googling shows that a flight data recorder records between 64 and 256 12-bit words a second, i.e. 1-3 kbps. Browsing http://en.wikipedia.org/wiki/Bit_rate shows that another 2-8 kbps is needed for voice recording (from one microphone). Let's call it 10 kpbs all together.

Number of simultaneous connections: there are around 20,000 (ballpark) airliners in the air at the peak time each day.

Compare this to the rather old Iridium satellite network: 2400 (uplink) baud rate, 1100 calls simultaneously per satellite (of which there are 68). Not quite enough, since airplanes are not evenly distributed over the Earth or under the satellites, but not outrageously far from our requirements.

Cost: several billion dollars (under 10, I think) have been invested into building the Iridium network, and their operating expenses are around 100 million per year (they are a public company).

Clearly, it would not be unrealistically expensive, in the world of 500 million dollar airliners, to build and maintain a network of satellites to record all black-box voice and data in real time.
This example is overly conservative, but the approach is sound.

Yes, one should expect students to know that you can fit eight five times into 43, but things start being different fast when doing trickier divisions. For example take 903/13. I don't have to think to know 6 times 13 equals 78 and 7 times 13 equals 91, but the average student? Forget it.

I would be happy to see the average student take out a 5 first (903 = 50 * 13 + 253), then another one (903 = 50 * 13 + 10 * 13 + 123). From there, I would have to think a bit to realize that one can take out a 9 (123 is very close to 113). The typical student? Forget it.

And that gets increasingly difficult when the divisor gets larger. What's the first digit of 9230/131?

So, yes, this strategy isn't optimal from a # of operations viewpoint, but for many students, it probably is the best way to get an answer. What would you prefer, a student who doesn't get the answer, or one that gets the right answer in a suboptimal way?

For me, the main question is what the teacher taught: did (s)he only tell students about this slowest, sure-fire way, or did she teach them the 'right' way and told them "if you aren't sure what digit to take next, pick one that you are sure about"?
The common core standards which talk about division are described here http://www.corestandards.org/Math/Content/7/NS

At no point do the standards direct you how to teach long division. Rather they try make sure that kids who go through 5,6,7 grades have a basis in division and consequently long division. Claiming that common core directs teachers to teach division in a certain manner is false. The fact that the kid is learning how to do division in a weird manner is probably the fault of the teacher who does not understand it herself.

Common Core is a set of guidelines regarding what should be taught in a curriculum to provide some structure to the curriculum variability across classes, schools, districts and states. Common Core definitely has some problems and most of them pertaining to implementation, teacher training, and the fact that due to standards some students are being set up to fail. However, it definitely does not direct anyone how to teach, but rather what they should be teaching at the minimum.
The planes are traveling 8 or 9 miles a minute. If it goes down mostly intact (i.e. not a lot of debris), there's a lot of ocean that you'll need to search. Personally, I'd feel better if the plane simply pinged its location every few seconds to a satellite so rescue teams know immediately where to look. Btw, what's the transmission range of a black box? If it's 10,000 ft down, how close do you have to be to hear it?
Don't use Europe as an example for an efficient train system. Learn from the best: Japan. New York - Washington? Sure, no problem, takes about 2h 15min[1][2][3]. New York - Chicago? 8 hours [4]. Looking at the American timetable - holy crap, 19 hours for the same distance by train, 12 hours by car.

[1]https://maps.google.co.jp/maps?saddr=Tokyo+Station,+Tokio&da...

[2]https://www.google.com/maps/dir/New+York,+NY,+USA/Washington...

[3]https://duckduckgo.com/?q=230mi+in+km

[4]https://maps.google.co.jp/maps?saddr=aomori&daddr=okayama&hl...
There was an interview (in french, sorry) of the developers on Clubic yesterday: http://www.clubic.com/internet/financement-participatif/actu...
hmm. skyproogled.
If that's the 'express', I'd hate to think of what the non-express train's travel speed & time is.
Is there any part of a plane likely to float with a black box attached to it? I can't find data on Google, but I'd guess they're pretty heavy?
In both Air France 447 and Malay Air MH370, local authorities found traces of crash / wreckage within 1-2 days.

People don't fully appreciate how difficult it is to find anything in the middle of ocean when there's no visual trace.

Even if you can narrow down the point of impact within a few square miles, you won't know for sure until you get underwater equipment. When you're dealing with deep underwater recovery, all bets are off.

I think low-tech solution would be effective. Perhaps install a few dozen chemically activated florescent devices throughout the plane that would float.
I was hoping you'd chime in on one of these discussions, given your history in the aircraft industry.

What are your thoughts on the rather knee-jerk articles as of late that seem to think that some form of streaming technology is somehow absolutely imperative, and how might that compare to the tried-and-tested flight recorders given what we know from AF447 sharing periodic updates as to its status?
What's your issue with that statement?
Looks like mathematica in a web browser to me. Probably cheaper as well.

So it's not all that high level. It is compared to Fortran and floats somewhere between R and Octave.
Snowden's response to the European Union on Mass Surveillance
A progress bar for AJAX requests
You don't have to be Garriott to be credible, but he is credible. Because he has a track record. If they do have a track record of building quality projects (and they say they do), they aren't substantiating it. See the problem?

I don't have a shipped-product track record, so I'm going to have a playable vertical slice--not a complete game, not narrative-based, but a demonstration that our features are already working, that our game isn't just hype, and what we need a Kickstarter for is assets and content creation. Because I understand people do and should laugh at projects that handwave this stuff.
I run https://xp-dev.com and more recently http://deployer.vc and https://zoned.io - all as a solo. I am hiring now, have used freelancers for help over time, but generally it has been a solo effort.

Do tell if you have any specific questions, and I'll be more than happy to help out!
If the rumors are right, then Gox not even had unit tests or a version control system go figure.

Bitcoin squarely is in the hand of amateurs - good ones like the dev team and bad ones like Karpeles et al.
Here's what we use at StatCounter when compiling Global Stats data:

http://gs.statcounter.com/detect

Can you check if that detects your IE11 correctly?
" However, it definitely does not direct anyone how to teach" I'm a parent of 3 kids in a NY elementary school. Several members of my family are teachers or administrators in schools. As a parent I disagree with that, and every single teacher/administrator would disagree with that. The entire point of COMMON core is to have everyone doing the same thing. This is one of the many reasons teachers hate it.
We can and do track aircraft through several systems: ACARS, ADS-B reading position info through GPS (and others)

Wifi and cell-phone have speed limitations (receiver transmitter), also, they are not adequate for something flying 500knots at 35kfeet

However, it is true that systems could be upgraded and offer a bigger bandwidth (within a certain limit)
The burden of proof [animated gif]
"or did she teach them the 'right' way and told them" ... there is ONLY the right way to do it. If the kids do it "the wrong way" they don't get credit.
Not sure that I'd consider 'many trains have a smoking area' as a good thing. Last year, I spent two weeks travelling around China via trains, and without a doubt the most annoying part of the experience was the rampant second hand smoke wafting throughout the entire train. While there are designated 'smoking areas' on the trains, they don't work so well when the train staff keep all the doors wide open all the time. And I tried closing them a few times, and less than a few minutes later some 'helpful' train car attendant had re-opened the door. I'm pretty sure I increased my likelihood of contracting lung cancer by a few percentage points from the two weeks that I spent on Chinese trains (not to mention the polluted air throughout the country).
Agreed. And ADS is mandated in commercial aircraft. It's part of the system that prevents aircraft from colliding with each other in the air (TCAS/ACAS).

But as I understand in this situation they were not out of ADS-B range nor were they out of radar range. While ADS-B requires the aircraft to transmit, radar does not.

An example of an in-flight breakup happened in 2002 when China Airlines 611 which broke into 4 pieces about 40km off of an island. Looking at the radar returns they found the aircraft broke into 4 large chunks and they were able to tell where items would be due to the radar tracks.

I'm really not sure what's happened here but my hunch is that the incident happened at the boundary of one or more countries' radar systems. So Malaysia needs Vietnam and/or Thailand and/or Cambodia and/or China to turn over their radar returns so that everything can be lined up correctly.

If it was all within one radar system you would have a location pinpointed within an hour.
> Btw, what's the transmission range of a black box? If it's 10,000 ft down, how close do you have to be to hear it?

Apparently 2-3 kilometers according to [1], which I found in the comments from here [2].

[1] http://www.hydro-international.com/issues/articles/id1098-Ai...

[2] http://www.aticourses.com/blog/index.php/tag/side-scan-sonar...
What the, why? Who thought this matched any sane API authentication pattern?
WebAWK – AWK in JavaScript
Anyone interested in my new blog post? I'm currently looking for work and this blog I've made is documenting the work I've done in trying to make my self more employable.
Not well. OTR doesn't integrate with XMPP in any way, so adding carbons is just going to feed undecryptable garbage to your other clients. Solving that is pretty much the same problem as mpOTR aims to solve. There's also a new proposed end-to-end encryption spec for XMPP being developed: http://tools.ietf.org/html/draft-miller-xmpp-e2e
In which jobs is this not a requirement?
Too many people are confusing "Capitalist" with "libertarian."

Learn the difference, then understand that there's nothing "libertarian" about making money from avoiding a sovereign power's taxes while sabotaging their communications infrastructure.
There were certainly parts of Air France 447 that floated. I think the largest piece may have been a section of tail. I don't know if there are parts that reliably float in the case of an accident over water but I'd guess that tail sections and winglets are good candidates.
Hackers Hit Mt. Gox Exchange's CEO, Claim To Publish Evidence Of Fraud.
Khrushchev's great-granddaughter talks Crimea
Agreed. Not funding until they get there. :/ Looks like an interesting game though.
It's pretty easy to miss "basics of a good design" like a cron job job when you are also missing actual basics like source control or any release process whatsoever [1]. I understand the Wired article to mean that for awhile they were actually editing source code on production servers in some cases.

This really is a case of a company managing assets well in excess of the limitations of its experience or ability, literally a trading card company that found themselves operating as a bank.

The thing I don't know was whether their customers had adequate notice that mtgox was grossly incompetent. Smart people have told me they did, but at the same time, the list of services I use where I have personally bothered to check if they use source control and have a test environment is not very long.

[1] http://www.wired.com/wiredenterprise/2014/03/bitcoin-exchang...
Weird how there is a culture of seeing spies and their craft as special. They are at best Peeping-Toms and stalkers.

Also, keeping secrets is no big deal. Every family has them. Every school has 'secrets' that they don't tell the children. Every company board has 'secrets' they don't share with the staff or the outside world.

As for personalities and the need to keep different persona, who really is the same person at work as they are in their private life? It is not hard to compartmentalise your life and be a different person for work.

However, ultimately, what these agencies are up to is quite sick and twisted. They are not out for the common good. Some of the psychology behind that could be a better basis for an article.
Then do the update every 5s. You don't even need to do a full update, just coordinates, heading, altitude and speed. Still technically feasible, still not terribly expensive (seriously, ~80 bytes every 5 seconds) yet potentially very useful since you can pinpoint an aircraft's location to within less than 1/2 mile at any point during its flight.
is this system really needed in order to grasp the concept of division? isn't saying "divide these 30 oranges to 6 boxes" enough? what does this system add to grasping the concept beyond this sentence?

actually i think the two methods of division are entirely pointless to teach youth. they are both mechanical algorithms that contribute very very little to the logical sophistication of kids, especially when you consider the other things you could teach them instead (set theory).

in other words, one method is short but easily forgotten, the other is long and remembered, but actually in real life you don't need to remember how to divide numbers and you also don't need to do it fast.
Junk Food Mind Control
I am suspicious of it because it seems to mire the situation with division in which there isn't an integer answer, whereas the traditional long division method provides an intuitive method for extracting digits beyond the decimal.

But the method presented is simple and easy to remember. Seems like a simplicity vs. efficiency debate.
To be fair, even major financial firms and hedge funds have these types of problems. Lack of pre-trade risk controls and position checks (not too dissimilar to what happened with MtGox) contributed to the spectacular blow-up of Knight Capital a few years ago
Exactly right, and people here seem to ignore that in favor of convenient ideological screeds.

Look at the EULA of what you pay for. It's amazing how little you're entitled to. Even if you paid for it~~~~~
A report from the International Language-Level Assessment Body.

Seriously though, it doesn't seem too far-fetched a claim after seeing all the stuff demoed in the screencast they put out:

http://youtu.be/_P9HqHVPeik

Getting pedantic, I suppose there's a distinction between the language in isolation and with its stdlib/environment.
Satellite could just be a fallback only used when you're not over ground. This would remove the load of all US/European intra-continental flights (the vast majority).

It looks like ACARS already uses Iridium http://en.wikipedia.org/wiki/Aircraft_Communication_Addressi...