skysight-inc/HackerNews huggingface dataset:
You write: "With Calculus, the mapping of math to real-world objects leads to all sorts of messy realities. With group theory, you dodge that mess by simply stating rules upfront."

(Prologue: I encountered group theory first by drawing pictures of pegboards and strings to illustrate permutations (before I knew the word!), not by reading the rules up front.)

You are describing a schism between pure/formal and applied mathematics (and between formalism and intuition, to some extent). It's completely cool for you to have an interest in pure math completely separated from applied math, real-world physics, programming etc. It is also cool for someone to pursue applied math,physics, etc without any pure math, but that is sad because a lot of beautiful symmetry and cross-disciplinary value would be last. (Goodbye, encryption!)

I personally strive to connect pure and applied mathematics. After getting burned (in an emotional/psychological way) by chasing pure math study beyond my ability to intuit and apply it, I now commit myself to learning theory and application in tandem. (I'll certainly appreciate the fact that pure theorists such as your ideal have gone several steps ahead and I can study their results without trying to discover them from scratch.)

In fact, my most recent flight of fancy / big dream is to write math/CS tutorials that provide such a tight integration of theory and application, abstract and concrete, general and specific. And I want to use modern web tools (hyperlink, animation, multi-dimensional page layout) to do so.

I'd love to talk to anyone interested in working with me on that :-)
What makes a game world different from a virtual world or a simulator? Motion.
What kind of marketshare is that though? Especially since the mobile platform invariably replaces Flash apps with native apps rather than HTML + JS ones.
Since 93 satellites measure precisely the ocean level and the level typically went up by 1.7mm per year. In the last 2 years it is going down by 2mm. From reading the different article and explanations my conclusion is that at this point scientist do not really understand what is going on. There are too many variables and not enough data collections to draw a better conclusion.
How well does IQ correlate with intelligence?
Just a note for anyone reading the Crenshaw book, in chapter 9 he notes:

The C language is quite another matter, as you'll see. Texts on
C rarely include a BNF definition of the language. Probably
that's because the language is quite hard to write BNF for.

There is now an excellent reference that includes a full BNF Grammar for C(C99): http://www.amazon.com/Reference-Manual-Samuel-P-Harbison/dp/...

(This book didn't exist when the tutorial was written)
"We know the iOS 5 is coming, and very likely alongside the iPhone 5. There will also likely be a cheaper “iPhone 4S”, perhaps sold contract-free. Apple will also undoubtedly refresh the iPod lineup as they always do around this time. And there is talk of the company having some tricks up their sleeves when it comes to new content for iTunes."

Notice a conspicuous absence from this list? A revamped, much better Apple TV. As he says, Jobs' two biggest successes was to break the monopolies in music and cell phones (the latter thought to be impossible to do just few years ago). One thing he (or Google or anyone else for that matter) couldn't do is to break the cable TV stronghold form the leech-like grip of the likes of Comcast.

So, maybe the mindblowing thing this fall will be something like that. Would be super. I doubt it.
Thanks for your feedback! Our unique value proposition is that designers can build custom site templates quickly, without coding. Most existing solutions (Weebly for example) require coding html / css templates for implementing custom site design. Our target market are designers who don't have a lot of coding skills or those who don't want to deal with coding for smaller projects.
Use Facebook to figure out who our mutual connections are, but don't send the pitch in a Facebook Message. Facebook is my personal space and I like managing my pitches in one central location.

Other journalists may have different feelings, but I think most of us prefer email.
Set gfxpayload=keep looses functionality, black console screens again
Intuit Entrepreneur Day 2011
By letting inventors use their inventions without trolls getting in the way. The patent system doesn't recognize independent invention though reality does.

Imagine having your valuable R&D rendered worthless by an injunction prohibiting you from distributing your product, that's what patents do.

Very little of what patents describe could be called original and they aren't described in a way to help people learn. While congress may have enacted them thinking they'd spur invention it's pretty obvious to developers operating in a patent-laden world that they do nothing of the sort. We aren't allowed to look at patents and when we do they aren't written to educate but to obfuscate. When our companies milk us for ideas they aren't interested in our ground-breaking earth-changing ideas, but simple (easily infringed) ways to do [common thing] [in a slightly new medium].
Now that I think about it I wonder if there's an opening for an app that helps journalists manage and keep track of pitches.

Does something like that exist? I feel like email isn't necessarily the most efficient system for it.
And no, don't negotiate for as much as you can get =/.

Why not?
I'd wager that more nerds run Linux on the desktop (or laptop) now than they did back when Slashdot was getting started. The biggest loser of developer mindshare in the years since has been Windows.

But, no one (in their right mind) is using Mac OS on the server, and any developer with a successful website has a lot more servers than they have laptops or desktops, so I reckon they're more of a "Linux user" than a "Mac user".
Net Neutrality: A Layman's Guide
There was a delay with sending form submissions through email. I disabled it, works much better now.
Man on the Raft - 133 days lost at sea
If you only use it as a link aggregator... sure. That's not even close to what everyone uses G+ as. I know for me and most of my social circle, we use it as a replacement for Facebook/Twitter (sans the random links from the internet we all saw on reddit anyway).
for one i remember apple suing it for using appstore.

but there is no line for that
Hard as hell guitars intro and then cut to a shy mumbling nasally guy, beet face and old lady room taking up half the room on the screen.
Money arises when neighborly debts are combined with the threat of violence
What was the flooring before? Is there any way to temporarily lay hardwood over carpet?
Wow, thanks for the kind words, I think? :)
I have been told catchy image or quick video would make it than short text. Also heard that money plays a role (You won't be covered unless you get funded enough ). Thanks for the pointers.
Don’t Blame HP. It Was Palm That Killed WebOS 2 Years Ago
This is in the case when the program is pure-clojure.

In my case, I'm trying to bring some Clojure into an existing project with a sizable Java codebase.

Anyway, I think that your clojure code would use String. Or joda's DateTime and zillion other brilliantly useful classes. It's not practical to either wrap or rewrite all the Java richness.

Concerning your example: Clojure also does a good work of inferring types given a few type hints, and that I good use. Just a few hints, a great speed up.
Thank you for taking the time and your thoughts.

Investing in a product is an interesting idea, but: 1) I'm out of the loop as you mentioned. 2) Bad taste from my little adventure. 3) Lack of motivation and 4) Lack the sales channels especially for enterprises.
The Impact of Multitasking: A Challenge
Holy crap, what is your secret?

I average 15K impressions a day on one of our games, and get maybe 30 clicks, and make around a buck.

You get ~2K impressions and close to 115 clicks and make ~$5-$10

If I could get your numbers I'd be making a killing.
Lots of problems here. First, his apps are Live Wallpapers, and he only shows ads on the preferences screen. Second, his sample is only ~500 installs and 600 impressions!

AdMob isn't killing it for me, but is a lot better than the OP portends. Here's my stats so far today:

http://i.imgur.com/CNJb1.png

FWIW: 25k installs, ~38% active, 1.7 MM impressions to date (2 months).
Oh god, put some tennis balls on those threaded rods sticking out from the bed.
Capital One Bank closed my account b/c balance $0 for five consecutive days
I have had a checking account for over 12 months, and get two direct deposits per month for over $4500 totally. Yesterday I logged in, and my checking account disappeared. I am not going to get my salary. Why? According to customer support: "once the account has a zero balance for five consecutive days, it will close automatically". WTF!
Watch 5 Days Of War Megavideo
Watch 5 Days Of War Megavideo
Propaganda of action movie heroics 5 days of the war presumably to focus on the sacrifice of war correspondents but it s really awkward attempt to write a 2008 mandate from the Russia Georgia conflict in black and white.
It's true you can learn to code on your own but a good college education is about more than career training. It can give you an introduction to things you'd never come across otherwise, teach you critical thinking, the scientific method, academic discourse, writing skills and life skills. It also teaches you to jump through hoops, which is no fun but an essential part of life these days, and gives you a safe environment to experiment, fail and try again.

I took the author's tack and took classes I was interested in and hacked in my free time. It worked out wonderfully for me as now I have a job at one of the top game development studios in the country. College + hacking broadened my horizons and gave me the career skills I needed. I've been surprised many times how things I've learned in completely unrelated classes have been come back to help me.

It's been especially fruitful when coworkers who are much better programmers than me want to write good code on top of poor decisions based on a lack of inter-disciplinary knowledge. Being able to adjust the course upfront has saved many hours and resources.

If you can go to college, but like the author said, if you're not engaged in your learning you're doing it wrong.
I haven't gone through the application very thoroughly, but it's good to see something spreading outside of the Yahoo Groups set up.

Thanks for the effort.
How to get rich quickly
Yes. Good find!
I was asserting different language because I've never heard of Steve being so kind. Competent professional adults don't collude to not be in the elevator with someone who simply kindly asks someone to move on.

Steve is a genius, but he leaves a huge trail behind for HR/PR to clean up.

A fun anecdote from a friend of mine, who was excited as someone can be to meet Steve for the first time. It was a press meeting at the Macworld conference, years and years ago. Steve asks his handler who my friend was, she replied it was so and so from MacCentral. What followed was something to the effect of, "MacCentral? I fucking hate MacCentral. How did he get in here? Who the fuck invited MacCentral? What have they ever made?" End of meeting followed by profuse apologies from everyone but Steve. Friend was still stoked, reality distortion field and what not.
I remember reading the original blog about this, and just breathing a huge sigh of relief. That was around 3 years ago, and I've been sharing it with people since.
The traditional and very successful approach to getting past the brittleness of "What would you pay for this?" is to sell vaporware. It's how Micro-Soft (before the S was lowercase and the hyphen was dropped) and many others got started.

You say to yourself: "I have a pretty good idea of how much work and expense it will take me to build this", then you go off and try to sell it as though it was already done or just getting polished for release. Once you have orders (or even better, cash advance!), you (privately) commit to either finish the product or cancel/refund orders if you fail^Whave a great learning experience.

It's dishonest, but it works, and if you structure your offer fairly (don't induce reliance on the vaporware, only induce desire), it's not evil.

Successful established authors do this before they write books. It's a standard technique in publishing.

See also KickStarter.
I thought Krypton was destroyed?!?
It's a potentially neat idea, but keep in mind that many people already use their email for such a purpose. Rather than a specialized app for managing and tracking pitches, consider building something that integrates into mail clients ala Rapportive?
I had a similar experience. I wrote an app that helped parents choose a name while my wife and I were expecting. I thought I'd see how admob performed, so I put some unobtrusive ads in.

You might expect with the keywords that I was sending, oh I don't know, ads somehow relating to parenting? When you're a new parent you have to buy a ton of new things. What could be better for advertisers?

Not a single ad in the app's entire existence ever targeted anything to do with the app's audience. The most common ad that I saw was for gamers. Trying to enable local ads didn't help either, the same ad displayed over and over again for a spa -- over 200 miles away.

Needless to say, the advertising barely paid for the coffee that I drank while developing that app...
With regard to licensing, this graphic is incomplete. It would be interesting to see a thorough version.
Introducing Stasis: A new way to build static sites with Ruby
If your store isn't bringing in enough customers you can upgrade the facade to bring in more traffic, but it's still up to you to make the sale once they walk inside.
Sleipnir is a new OS X web browser
We can agree to disagree. You have clojure.string. For Joda DateTime you have clj-time. There are a growing number of Clojure libraries that provide an idiomatic interface to Java functionality w/o resorting to pervasive type-hinting.
You seem to be saying that you wish that passion for work, or gobs of money, (or maybe genius, it's ambiguous from your wording) were a way to escape mortality.

I'd rather live in a world where everyone has a roughly similar risk of mortality. I wish Steve Jobs genius were a way toward curing every case of pancreatic cancer; I don't wish he had a non-scalable way to cure only his own.
Ha! That's awesome.
Counter Strike: Global Offensive Video Preview
Or Apple is a convenient target with lots of cash. Or, more likely, Apple feels like it really does own its IP and that it would be catastrophic to it's business to see hundreds of iPhone clones running around. Apple is also trying to jump into lawsuits they weren't named in for their develoers' sakes.

Just knowing how many lines are coming out of a place doesn't give knowledge of who is right or wrong. The stupid laws beget stupid law suits.

More interesting will be to see the outcomes. Apple doesn't generally like cross-licensing, so they may go all the way to verdict. If the suits were frivolous, we should find out.
Thanks for taking the time to do the screencast and release it, I always find screencasts are a quick way to get a feel for how a new technology is going to work.
Are you talking about efficiency of the compiler or efficiency of the resulting code?

If it's just an inefficiency of the compiler, you can dismiss it. But if it's an inefficiency in the resulting code, then perhaps the many-pass design isn't adequate for teaching optimization.
A Hard Day’s Night
Always a fun read :)

>The absence of a golden rule for mattress flipping is a disappointment, but it does not portend the demise of Western Civilization. We can adapt; we can learn to live with it.
Considering that it is designed to measure intelligence in a way that can be objectively defined, I'd say it correlates pretty good. Can you think of many intelligent people with a low IQ or unintelligent people with a high IQ?
An API for Browser Screenshots
Following up on this, once the first 'major tech blog' has covered you it is a whole lot easier to get the others. For my last project, GroupTabs (didn't work out, but that is another story) we id'd a journalist who had been working our beat (LBS). He was very receptive (http://venturebeat.com/2010/08/09/grouptabs-rewards-groups-f...) and once that hit, Mashable followed (spark of genius is invaluable press opp).

After that the bloggers started coming to us.

People also did seem to like our video as an 'outrageous' pitch: http://www.youtube.com/watch?v=ACh-FqQqU4Q
Make education software like Tamahagane blades, not Swiss-army knives
No problem, thanks for the feedback! I really enjoyed doing it, hopefully more to come! :)
Ahh ok excellent.
In most (all?) of the cases listed in the graphic, apple is the one that started litigation, and then was countersued, this has nothing to do with apple being a "convenient target with lots of cash", nor are any of these suits "for their develoers' sakes".
Why I Expect MYI To Increase Over Last September
Razer releases 'World's First True Gaming Laptop' -- for $2800
This is a list of books for people who wanted to know how Entrepreneur works.

Entrepreneur should do 2 things:

1) Work

2) Stop doing stupid things.
You mean they won't work on iOS phones, that's like 2% of the web browsing market. Not to mention iOS HTML5 support is shit.
> Under oath, Buckwalter said he did not examine Duncan on her first visit because he "did not have time," yet prescribed her 300 tablets of Xanax, an anti-anxiety medication, and the painkiller hydrocodone, a synthetic opiate.

Yikes! This guy is scary.
Is this available without logging into a proprietary service to read it?
And absolutely any combination gets named "baseUrl".
How To Get Ahead of the Pack at Your Startup
I only said that that kind of thing is a story. That is also why the tabloids are full of stories of the rich people, not the poor people, and fairy tales are about princes and princesses.

Also if he could cure his own, it would incentivize other people to become rich so that they could also cure their cancer.
CTR on mobile ads averages around 1%. So you're spot on :)
Use your blog to get design jobs
Are you a freelance designer? Are you interested in boosting your credibility, building your client base and increasing your number of paying projects? The answer is obvious, but knowing where and how to get started can be daunting, especially during the periods of low client work (you know what I’m talking about).
New gaming laptop with innovative UI by Razer
How to raise money - with Martin Soorjoo, aka "Pitch Doctor"
I think you're missing the point of "Trust no one".

You don't scan it, just use it in a disposable environment (usually a VM, on a non-valuable machine) and see what it does.
Intelligence is not defined precisely enough to speak of correlation here. Maybe a better question to consider is: is it fair that salary is correlated with IQ?
don't sweat it, thanks for the hour long screencast on backbone.. that must've taken some time to put together
Apple's One-Dollar-a-Year Man (2000)
Garage48 gives fast-track access to Seedcamp
I'll do a bulk reply since there's lots of comments here I would reply to.

Clojure doesn't need invokedynamic in general because Clojure doesn't really dispatch dynamically. It's dynamically typed, but calls are made via a known path to a specific function, and only via rebinding can that target change. The general case goes straight through.

In a sense, it's like Clojure is JRuby where all classes only have one method. With only one method, you can always just call straight in, no lookup required, and avoid dynamic lookup.

If Clojure had to deal with dynamically selecting a method based on a target object type, incoming parameter types, and so on, invokedynamic would be more useful. Indeed, Clojure often hacks around such cases by allowing you to specify Java signatures (to avoid reflection) or primitive types (to avoid boxed math). Both cases could be improved without ugly syntax if invokedynamic were used.

So to summarize, Clojure could get benefit out of invokedynamic...if it hadn't already added hacks and syntax to allow opting out of the most-dynamic cases.

In JRuby, we could avoid a lot of dynamic dispatch by allowing type signatures, type declarations, and so on. But that wouldn't be Ruby, and we don't control Ruby. JRuby compares favorably to Clojure without the typing syntax, performance-wise, which is quite acceptable to me. With invokedynamic, JRuby even compares favorably to Java, with the exception of boxed math (which is very hard to optimize in a dynamic language). For equivalent work, JRuby with invokedynamic is within 2x slower than Java, and that will continue to improve as the Hotspot guys optimize invokedynamic.
Well, we do all sorts of websites for different types of photographers (see my profile for links) so we had an existing client base and a pretty good audience in the industry in general.

When the iPhone first came out, I jumped on it and created some simple pages/scripts that could be uploaded (along with some directions for detection/redirection). We sold a good amount of those for $79.

Now we just offer them as part of our overall website offering (and it's a full web app similar to cilantro here).
Walking on a cube-shaped planet
Backbone.js - Model and Views: Image Gallery Tutorial
Good Morning America
I've thought about it -- I know one or two make Google Docs for pitches. Problem is getting the people who email me to change their behavior.
Sure, no problem. Funny thing is that I basically did it all in one take. That's just kinda how I roll. :)
Fair enough, however I don't see a benchmark which measures the performance of Clojure in a situation described as above (dealing with a lot of mutable java objects) compared to other (JVM) languages. He clearly mentioned, for such tasks, clojure is 1000 times slower than Kawa. The fact that Clojure is fast for other types of programming problems is irrelevant for this particular case.
invokedynamic is extremely powerful whenever there's a need to dynamically bind some function or variable. That means even statically-typed languages might benefit. In JRuby, it brings us within a stone's throw of Java performance for simple algorithms, provided that the Java version is doing the same work (e.g. doing boxed math for math algorithms).

Regarding [1], I made the build myself. Here's my build script and instructions: https://gist.github.com/1148321

To get the best possible performance, you'll want several unapplied patches from the Hotspot team. Ask on the mlvm-dev list.
> Embedding an iframe with the url in a html page will cause all visitors to the page to get the affiliation.

Won't a simple <img src=...> work? Why go the iframe route?

I don't think this is going to be the final affiliation implementation they are going to use. It's more like adding special touches for a community where he is showcasing, and they will turn it off in a day or two.
Ask HN: What happened to the flagging option?
This came about due to a discussion yesterday http://news.ycombinator.com/item?id=2925292 about the decline of discourse.

During that I mentioned that I used to go in and spend 5 minutes each morning flagging spam in the new tab, but I no longer have a flag link. Some one mentioned that I might have tripped some automatic flagging limit and lost the privilege.

Has the flag link been removed or was I punished for too much flagging? Is such a think possible?

I don't need the ability back, I'm just curious and it might help someone else from getting into this situation.
I remember reading a similar thing in a Barnes and Noble. Oh, bookstores...it was a fun read.
Personally, I would make something up. If you want it to be useful, make it into an embeddable scripting language. But if you're doing this to learn, I wouldn't worry too much about making it "useful", at least not the first draft.

This is the approach I'm taking; I got into compilers because I had ideas about languages. YMMV