skysight-inc/HackerNews huggingface dataset:
For starters, lasers rely on population inversion and thus the idea that atoms exist in discretized states, which are really consequences of the quantum theory that emerges in the early 20th century. Likewise, modern solid state physics, which enables semiconductors and LCDs, is really built upon quantum mechanics.
This should read "why developed societies no longer..."

The population growth rate in developing and 3rd world countries is still pretty high, despite what the author claims in the first paragraph.
That was one of the rationales for keeping it so long. Maggie Thatcher was not a fan of such reasoning, hence the change ;-)

But, well, locations and families vary. I've lived here over 30 years and Sunday has a distinctly restful vibe for most groups of people I know. I imagine people down in the Home Counties are more rush-rush-busy-busy nowadays than we country folk.
"3740 flying hours" ... Since built in 1988!

"The lifespan of the airplane is 8000 flying hours, 2000 takeoff-landings or 25 calendar years."

A 1980s 747 could expect 100,000 hours or more. I'd be interested in learning what exactly is so different about this plane to create such a vast disparity in reliability. Was it built, like with the Tu-144, using massive single billets?
Surprise, surprise. So nothing really changed. Network is still what matters.
Boeing for one still uses a lot of Ada for critical flight systems. The 787 flight control software for one.
Intrest rates generally take into account inflation (the rate should be greater than anticipated inflation as part of risk) unless there is a consumption deficit (e.g. China can't use all the dollars it earns without overhearing their own economy so it lends them back to the US at a small loss; the US's role as debtor of last resort is what makes the dollar appealing as a reserve currency).

If you have savings and investments, inflation puts pressure on you to make them perform, otherwise you are losing money; it works like a capital tax in that regard. You just can't sit on it since money can't really be saved without someone else borrowing it (production and consumption have to even out at the end of the day!). So no, the rich don't really get richer off inflation. They aren't brorowing money from the poor at any rate.
A small handful of unique individuals winning a contest and then improving themselves using a support structure is universities. It is just a less structured institution. Although, I don't know much about Thiels Fellowship.
Police: Gunman who shot three people at Pittsburgh-area mall arrested
Cool! But, is it possible that this violates Apple's TOS or any legal limitation on use of the Swift language? I remember there being a lot of heated discussion about making Swift officially open source back when it was announced, but I don't recall ever hearing anyone suggest a community project to make an OSS compiler for it. This is most interesting, but I'd love to know that Apple would be okay with this, or would have no recourse to shut it down, prior to putting in the time to pick it up.
A New Renaissance for Startup Funding
Mostly useful, however a lot of the comments are unnecessary noise. And some could be eliminated with better naming, intermediate variables and refactoring.
The view will switch to this layout if you make the display window narrow enough (320px)

doco.css:202

> /* ---------------------- Low resolutions (> 320px) --------------------- */

> @media only screen and (min-width: 320px) {
So, is the Java version now a JVM language, like Scala and Groovy? Can I use it in IntelliJ or do I have to use this IDE they made?
Not the parent, but I prefer footnotes/sidenotes when reading physical texts, but prefer inline commentary when reading on the computer screen. Jumping up and down to read a footnote (either manually scrolling or with a hyperlink) or having the sidenotes take up a large percentage of the screen is disorienting for me.

It helps if the inline commentary is differently colored or in a separate box.

I also use light colors for comments when reading source code, but I personally prefer this over having them as footnotes or sidenotes.
Comments get in the way of the flow in reading code; they are often of little value that easily goes negative when they distract.
I have in fact noticed that most of my friends are more honest than me. Everybody seems generally more candid, more honorable, more trustworthy than myself.

So I can see the day coming where I'm gonna have to face the facts and admit I'm a big phony.
Apple needs to buy this company in 3, 2, 1... This is an ideal start to countering the concepts from Xamarin out of the .net camp and I would love to see them build up some form of XAML-like UI tech and tooling for x-plat UI dev so you could push the envelope on code-reuse. That would take a big dump of capital.

It would also make for a push in the market for this style of x-plat dev. If you can get to the major and minor platforms with one code-base and a single-stack dev team, oh what a smooth world it could be.

Windows 10 on all devices, written in Swift to a universal in visual studio. Wonder if I'd get to see a macbook running windows with a dev writing swift in VS.
I hope this doesn't come across as rude, but I can't tell from the site: will this be "free" as in open source or "free" as in freeware?
> yet it takes ~5 years to master a framework

kinda hard when frameworks completely refactor themselves or fall out of style within 18 months
Also is there criteria difference between Indiegogo and Kickstarter? Other than the fact that Indigogo allow you to have the money even if you don't reach the target.

Do we have to be a non-profit?
Photoeus Eyepoppicus.
The incredible complexity of the machinery behind many rather plain web sites is embarrassing. There are a lot of web pages which would look exactly the same if implemented in HTML with no Javascript. Except that they'd load faster.
Required reference:

David A. Wheeler’s Page on Fully Countering Trusting Trust through Diverse Double-Compiling (DDC) - Countering Trojan Horse attacks on Compilers

http://www.dwheeler.com/trusting-trust/
I think the idea that investment in a child's education is more to the benefit of the general society than the benefit of the parent is a good point, but the author obstructs himself by saying that the state claims the child's future earnings.

The state doesn't make particular claim to the child's future earning. It makes equal claims to the parent's earning.
So either, this argumentation goes down a path about taxes vs. no-taxes, which should be irrelevant to the overall topic or the argument should stick with the claim that a productive members is useful to society in a broad sense, but doesn't directly pay back the cost of raising it to its parents and just leave it at that.
This aircraft certainly doesn't get to supersonic speeds
It threw me for a bit that x here refers to the distance from the origin, whether or not that distance is leftwards or rightwards.

Anyway, the function's being described isn't really the way water waves actually work, is it? Surely, dropping a stone in water does not start out disturbing every portion of the water immediately like "sin(x)/x", but rather, the disturbance only emanates out over time from the origin, with at any moment only so much water disturbed. (Then again, I'm not a physicist, so what do I know?)
I don't have a specific answer for your question, but I know this site was written specifically for game programming patterns:
http://gameprogrammingpatterns.com/contents.html
This appears to be another language frontend for their existing proprietary compiler.
The amount of blogs that require javascript for the designer's special snowflake layout are what kill me.
It's far, far easier to record a song or even an album than it is to make a movie. The former is something you can literally do alone in your bedroom with a fairly modest outlay on equipment, if you're willing to work on the craft of sound engineering or team up with someone skilled in that area if your main skill is as a musician/songwriter. Of course it's not the same as going to a studio with outstanding acoustics and great session musicians etc. etc., but it's very feasible nonetheless.

Making a movie is simply not something you can do on your own - it's orders of magnitusde more complex and expensive, in both time and dollar terms. Also, you can't make money on live performances or merchandising swag in the same fashion that musicians do; it's not impossible to build other streams of revenue besides ticket/rental channels, but it's a lot more difficult and the ancillary revenue potential varies enormously with the subject matter.
Mine is 20,000 lines including assembler unassembler and HolyC compiler. It doesn't use an AST, it uses a stack machine intermediate code. Mine is JIT and AOT. It doesn't support elf, just my own BIN format. It doesn't translate to ASM on back end, straight to x86_64 machine code. Mine can compile 100,000 lines a second.

Mine is divine intellect.
Genuinely curious.

Why Swift for multi-platform rather than C#, Clojure, JavaScript, or <insert other language here>?
What possible reason would Apple have to buy this company?
That's a bias, but it's not sufficient to guarantee that the highest "creativity" scores show a lower prevalence of self-reported honesty than the lower scores. It could easily be the other way around.

If I measured creativity in a group of test subjects using the Gough Creativity Scale and found that, e.g., the people in the top 10% of measured creativity were Honest at double the rate of the bottom 90%, would that finding be invalid because of the design of the Gough Creativity Scale?
Programming languages cannot be copyrighted. It doesn't look like they've reimplemented any Apple APIs, so there wouldn't appear to be any room for an Oracle-style lawsuit claiming that standard library code was copied.

I don't know what the trademark situation might be, though.
A collection of useful .htaccess snippets
That's from Linux.conf.au 2013, but still a very good video.

From the more recent developments, Nvidia is getting closer to enabling Wayland support in their closed driver.
SR-71 Blackbird pilot explains how the cockpit works from the inside
In a hurry? Let a robot valet park your car
Swift is statically typed, so it doesn't really compete with JS or Clojure. The company already has a C# implementation for sale.

Also, Swift was designed to compile to native code, unlike any of the other three languages.
Seems like a really good designer working with knowledge of manufacturing would design an aesthetically pleasing zipper pull with an asymmetry sufficient to allow such automated orientation (e.g. one end thicker across the width of the pull).
Having watched a C-5 Galaxy fly low overhead before, I can only imagine how ridiculous this thing must look during take off. "When pigs can fly."
https://www.youtube.com/watch?v=O4seubKdRs4
Digital Nomad Documentary
Silver itself might be free, but I think only if you bought the compiler already,

http://elementscompiler.com/elements/pricing.aspx
Here is the official document from the Swiss government wherein they dictated to other countries how much their money was worth: http://www.snb.ch/en/mmr/reference/pre_20110906/source/pre_2...

This became news several days ago when they let their currency float again, resulting in a jump in its value and the ruin of multiple firms involved in foreign exchange trading.
Show HN: Website for my high school wood shop class to learn parts on machines
I don't think apple wants to push for cross platform development. Looking at the last decades I would sustain the opposite idea, they are trying to just build tools who can work only on their own ecosystem
This looks interesting, although adding language extensions makes me a bit nervous. What's the ABI compatibility story when targeting Cocoa? Can I mix and match with native Swift classes? Is the native Swift runtime used?
Well, yes, that was my point. However, that particular subreddit has been reincarnated as another I have no particular inclination to name. As yet it's unbanned.

By banning that subreddit, and creep pics etc. the admins have already made some broad stances on what is or is not acceptable. Banning them as the reemerge can not be, I imagine, such a huge task as to require multiple people.
I don't think Apple would like to support other platforms.
The baby that divided a nation
Reposting as a Show HN
See randsinrepose.com - blog by Michael Lopp and his book Managing Humans - http://amzn.com/1430243147
> That answer isn't based in economics.

of course it is. Economics is not about money, it is about wealth. And wealth is ill defined, because it can be all sorts of things (gold, food, a tropical island, lots of children)

As long as humans have a desire for something, it can be analyzed with economics. Because as soon as we have a desire to get something, we must make a choice in order to get that.

Opportunity cost measures everything we choose to get in terms of things we could have gotten otherwise and labels that as its price.
Welcome to my browsing experience using a 3 year old phone.
I suspect if Apple wants Swift to target other platforms they'll use their own compiler.
http://en.wikipedia.org/wiki/Airbus_A380#A380F
I like Date's SQL and Relational Theory (http://shop.oreilly.com/product/0636920022879.do). It won't tell you about the latest changes to the standard, but it will help you get a handle on the relational model, which is the key to using SQL intelligently.
Over the years I've found that whenever I want to make something look sort-of-physical, it winds up being quicker and easier to use real physics than to hack up something that isn't physics-based but looks close enough.

For example, I once made a wave animation just like the one in this post (in 2D but otherwise the same), thusly:

1. Make an array of height values initialized to zero

2. Run a tick() function that applies a spring force between neighboring values, then updates their position/velocity

3. Perturb the middle value by a large amount

Not exactly real fluid mechanics but convincing enough. Perhaps best of all, fine-tuning is easy because the model matches your intuition - if you want the fluid to look more viscous you don't need to guess what to tweak, you just dampen the velocities, etc.
note my choice of words "wherever you can get away with it" :-)

because I do take those situations into account. if it would cause a problem with others I don't do it. in my own notes or when dealing with others whose brains I know can handle it, I do.
Fantastic images.

The world over, and yes, both Mriya and I, aloft and aground, only accept dc headsets, the David Clark Company, USA.
Looks pretty shady. Proprietary code through-and-through, and it's "cross platform" because it compiles down to their own proprietary language. It's unclear how you deal with native libraries, if at all.

I'll pass, thanks.
> Silver itself might be free, but I think only if you bought the compiler already,

so it isn't free software at all.
Show HN: The Longest Chain – A site about writing and sharing
Why not just write your app using F# w/Xamarin. Target iOS, Android, Windows Phone using a decent functional language.
I'm not sure about the technical reasons why the An-225's reliability would be so much shorter. It would make sense that a one-of-a-kind special purpose aircraft has a shorter intended lifespan than a high-production commercial airliner.

This bird is so special purpose that, from what I understand, it's primary purpose was to transport the Soviet Union's Buran spacecraft (an attempted Soviet version of U.S. Space Shuttle).

http://en.wikipedia.org/wiki/Buran_%28spacecraft%29
Using a Middleware in Your Go Web Applications
Online C++ compiler now supports ARM64 and PowerPC
That's interesting. Where I live (India), we didn't have a currency symbol until recently. Our currency is the Indian Rupee and we used to prefix "Rs." and "Re." to the value.

The govt. invited people from around the country to send in their designs and we finally chose one (20B9 on unicode). But it took us 2 years to start using the symbol on currency notes.
it all mostly just works

Yes, that sums up MySQL pretty well.

And then one day, one of your masters segfaults for no discernible reason. And when you restart it, the replication process (or even the InnoDB recovery) fails to resume with a generic error message that you can't find any useful information about in the mess that MySQL calls "documentation".

That's when you realise that "it all mostly just works" is really not what you want from your database.
> Thst's rather a pointless comparison - the AN-225 is a
> MUCH more capable aircraft.
> http://www.aviationexplorer.com/Antonov_An-225/an-225.jpg

They stuck the shuttle on a 747, and there's no particular reason to think it couldn't go on an A380.

> When dealing with air cargo dimensions are more
> important usually than weight

Weight and fuel efficiency are by far the most important air-cargo considerations, absolutely dwarfing _every_ _single_ other concern. Awkward loads are a miniscule edge case, which is why there was precisely 1 AN-225 built, 5 Belugas, and 4 Dreamlifters, as compared to the mind-boggling amount of air freighters, and passenger aircraft carrying freight.

> you need to engineer from the outset for a pivoting nose
> and/or full size rear ramp

The Beluga and Dreamlifter both are modified version of existing non-pivoting-nose airframes, and there's even a 747-400 (747-400F) modification where the front lifts up.
Awesome, so useful! Thanks :)
The best part is when they seem to load and display just fine, until at the very end of the document where there's some element that'll suddenly cause everything to disappear...
General thoughts:
Cancer patients—in particular those with blood cancers—are routinely immunocompromised and put on antibiotics. Any potent effects would almost certainly have been realized by now. There are a lot of people who have made their careers by tracking what therapies work and which don't—and that includes controlling for "confounders" like those given antibiotics, etc.

Oncotarget isn't a bad journal—and this is certainly a good idea which may have applications we can't quite imagine yet. But it's unlikely to be a potent cancer therapy.
Nice code. Thank you. Are those ball-to-line collisions energy preserving? I believe they are...
However it seems there might be an edge case, where moving a colliding circle until it no longer intersects the line, might cause it to skip past another line. Because of this, the lines should not intersect each other.
Sorry to ramble but I love this sort of stuff. Collision detection is covered well in many game development texts.
I'm curious to know how well it performs. I spent the better part of this weekend rewriting 4k lines of Swift in Objective-C because I couldn't deal with the 60-90 second compile times.
Really nice! I like the fact that I can access all sections i.e. new, ask, show, etc.

Nit: I often get "Story type not supported" when tapping on posts.

Any plan to open source it or some parts?
What interests me is that he has managed to openly ask students to drop out of mainstream education without much public outrage. Is it a sign that the society at large has perhaps stopped associating failure with dropping out?

Or is it because the people who joined the fellowship were too different to be called "normal" already?
Why not create a Swift Compiler and Toolchain for LLVM?
You can disable all triggers in a session.

set session_replication_role='replica';

If memory serves me correctly. Foreign keys are maintained by triggers.
Linux kernel 3.19 released
Man Dead in Shark Attack (New South Wales, Australia)
I do think its interesting - his dropout club is filled with individuals that dropped out of already elite and prestigious institutions. Many of them have already signaled their intention to return to school after two or three years.
For sure, but an order-of-magnitude disparity in lifespan remains huge.

And the Buran was no "attempt". It was a working shuttle that flew to space and was in many ways superior to shuttle. It just didn't make economic sense, nor did shuttle imho.

The Tu-144 "Concordski", THAT was a true attempted copy woefully lacking in many many areas.
BTC is still very overvalued if there is still surplus profit.
Because every time Amazon echo comes up, people always rush it "don't worry guys, it's not actually recording anything until it has to send to the cloud" and by Amazon's own admission, that's patently false.
And what's even better is that Angular is throwing everything out an starting over with 2.0.
Sure, and the Hughes H-4 Hercules, which had a wider wingspan, although it was a bit shorter, first (and only ever) flew in 1947, and was MADE OUT OF WOOD. It's reasonable to assume the AN-225 benefited significantly from material advances (like not being made of wood) that the H-4 Hercules didn't have.
It did relate to electrification. Metro-North uses a third rail system where the pickup runs on the underside of the third rail, rather than the top. That style of third rail isn't as solidly mounted as ones where the pickup runs on top. In this accident, the third rail broke loose and penetrated the first car of the train, with the power still on.

There's a solution available to prevent railroad crossing accidents, but it requires blocking the highway for much longer.[1] This is a fully interlocked grade crossing. There are gates on both sides of the tracks, vehicle detectors for cars on the tracks, and interlocking with the railroad signals. As a train approaches, first the bells and lights come on. Then the entrance side gates go down. The control system checks that there are no vehicles on the crossing; there are traffic detectors and radars for this. Only then do the exit side gates go down. When all gates are fully down, and the crossing is clear of vehicles, the train gets a clear signal. If there's an obstruction or a damaged gate, the train will slow and stop if necessary.

This requires that the gates go down about a minute before the train arrives, because the stopping distance for trains is so large. Drivers hate that. Railroads aren't too happy with it either, because they're going to have to stop trains when someone is still on the crossing a minute before the train gets there. Current FRA rules are that such a setup will be required for grade crossings with trains operating above 110 MPH. Only the Northeast Corridor has such speeds.

There's been one accident at the US at a fully interlocked gate. A car went through a lowered gate into the path of an Acela high speed train.[2] Barrier gates capable of stopping a truck are being considered.

[1] http://www.ansaldo-sts.com/sites/ansaldosts.message-asp.com/...

[2] [http://www.nytimes.com/2005/09/30/nyregion/30acela.html]
How about a Minnowboard Max?
> At my previous job, site was rendering on server. It was old, and we wanted to redesign it. I wanted to keep rendering on the server. CTO and VP wanted to build Angular site because everyone is moving to Angular and its easy to find Angular developers. Company's 30+% of new visitors comes through SEO.

I think I missed the point of your second paragraph, I'd be interested to know what you meant to say. (currently working with Angular on a small hybrid app and thought about experimenting with it on the web but SEO concerns were the first thing that came to mind, so it feels like a relevant piece to me!)
iOS Devs – how to load different views on UIPageViewController
Kamcord is looking for an iOS App Engineer who loves mobile games
This article should be required reading for every web developer / web development course etc.
You don't even really need the book keeping - you can update the hash in place as you say, then just try both eg bcrypt . password and bcrypt . md5 . password. It would be even simpler to style all future passwords as bcrypt . md5 . password but I'm not sure of the security implications of that as a permanent measure and so wouldn't do it personally.