skysight-inc/HackerNews huggingface dataset:
I don't get what his results have to do with the Fibonacci sequence. Between his "control" and the design he was testing, he changed:

1. panel heights
2. panel angles
3. whether panels were stacked or not

I would guess that any of those three things matter way more than the position of the "leaves" following the Fibonacci sequence. He needed to compare his design to a similar tree-shape whose "leaves" were, say, uniformly or randomly spaced; not to what amounted to a patch of moss.

(Which brings to mind: solar panels which were shaped more like moss (i.e. rough) would probably perform even better. I'm pretty sure I remember MIT or some place building a prototype like that.)

Finally, he measured voltage but made claims about power, which is a huge no-no for solar PV. Solar PV panels have highly nonlinear voltage/current characteristics, which means that increased voltage does not correspond to increased power, especially in setups such as the tree where the solar panels are not uniformly illuminated.
Maybe not. Trees have to keep their leaves clean, and perhaps the Fibonacci placement doesn't only improve sunlight collection, but also rain collection for cleaning.
Reloj espia
Reloj espia tipo sobremesa con camara oculta
I guess it depends on how much you are making. For 300k, I'll work 75 hours a week and not burn out. The incentive is there.

If you con me into working 75 hours a week for 70k, I'll burn out when I realize I've been wasting my time propping up a loser.

I'd imagine most people are the same. Pay them enough, and they will cope with terrible conditions. Con them, and they will lose interest a lot faster.
Told that there were three groups and how they were distinguished, but not told their relative sizes, we have found that computer scientists and other programmers have almost all predicted that the blank group would be more successful in the course exam than the others: “they had the sense to refuse to answer questions which they couldn’t understand” is a typical explanation.

I almost cracked up at this. As much as we'd like to say that's how we behave, I'd say just about all of us are more likely to try to answer anyway.
Are all VCs this smart??
We use the Devise gem https://github.com/plataformatec/devise and the default subject line is: "Confirmation instructions". I can't say anyone on our team thought to change it. Good clear language like "Please confirm your email address" would be great to have as the default in gems like devise
The Americas, Not the Middle East, Will Be the World Capital of Energy
Heads up! That your idea is similar / same as one of the 7 most interested start ups shows that you are on the right track! You should be happy! Find more customers and keep developing, maybe find a co-founder.
Just say fractals. We already knew they appear everywhere in nature.
Duke Nukem Forever.
Not sure how true that is.

At their most basic they do text classification and extraction, as well as document comparison. So you can index a whole load of documents, then train the system to recognise a particular type of document (based on any number of other training documents) and give it a specific classification.

The marketing spin is that you can extract 'meaning' from a whole load of text and deduce what a document is 'about'. Its not strictly true, but you can get a close approximation of that idea with decent training sets and classifications.
Its not a science experiment unless you quote some famous math principle :)

Anyway, go ahead, do the experiment yourself! Its not rocket science. No need to guess, when the answer is only a little effort away.
That's really a cheap shot after Colin's kind reply to your informational question from just the last month.

http://news.ycombinator.com/item?id=2831538
Thanks this was really a good article
JavaScript is kind of functional. It pretty much forces you to use functional stuff like closures.

It's not a pure functional language, but it's sure not pure OO either.
7/8:ths into it hung chrome and I had to kill the page. All my progress disappeared. :(
I don't think it really matters that people don't finish games. The point is that for £40 I can get between 10 and 100 hours of entertainment (Portal to Zelda). That is a bargain and it much better value than many other forms of entertainment (cinema, DVD, Gig, Pub, Theatre). The only thing that beats it is a book.

Although there can be a feeling that you've paid for N levels so you should get to see N levels that just isn't going to apply to some games.
In the example given, it's really $1.25, but even at $0.25, I'd still disagree. That's just the cost of getting someone in the door. If your sales process is just people browsing in a physical location, possibly that's OK. If it requires a lot of interaction with staff, that's cost that needs to be factored in.

Should that be factored in to the groupon price? Absolutely. Will most people know to do that (and goes groupon counsel people on how to do that)? Based on most groupon horror stories, absolutely not.
Given the HP CEO was at SAP he is probably wants to compete with Oracle.
Inside look at HP killing WebOS
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Upvoted you both. I did do a little research before interpreting the original "sour grapes" that way. I, too, think there's room for debate about that interpretation, but I stand by it. Thanks for the exposition.
Anecdotal evidence against anecdotal evidence against more anecdotal evidence.
There is extensive market research on the distribution of brands. People estimate proliferation by analyzing user agents of web site visitors, surveys, sales numbers, and more -- and even those numbers often vary greatly.
Guessing the distribution, or even forecasting a trend, based on your analysis of the 5 people sitting next to you in a café or how many Mac Stores exist in your vicinity doesn't contribute to the discussion.
The problem is not with the guy, the problem is with the journalists.
I completely agree with you that some people, right now, cannot think in abstract terms. My point though, is that they could learn it through deliberate practice, unless they have a severe medical condition that affect the way they think.

Maybe they don't know they can learn it (possibly because others have told them that they would never get it), maybe they try hard but fail to do deliberate practice (which is different than programming every day), maybe they aren't interested and still want to have a programming job (that's a problem and they should be redirected to a more appropriate position).

Another book I really like to recommend for people who hate maths or don't understand them is Innumeracy by John Allen Paulos. It really helps you get a more positive view on maths. The sequel, Beyond Numeracy, is less groundbreaking though.
I agree, but I have no idea how to get that information out of github, aside from perhaps iterating over every project there.

I think it would be cool if they made some aggregate data like that available though. =)
If you visit http://bodybrowser.googlelabs.com/, does it work? In particular, does http://bodybrowser.googlelabs.com/body.html load and let you rotate the body around?

If possible, can you DM me your IP on twitter, so I can see where in the logs you showed up? If it's weird giving out your IP to random people on the internet, you could just visit endlessforms.com / DanielRibeiroDebug , and I'll find the 404 in the log file.
So - ask for stuff if you want stuff

And do it in a nice and courteous way.

Literally decades ago I flew into Chicago with a connection to Oakland via Salt Lake City (actually wanting to get into SFO, but that was the cheapest connection) and it was miserably cold and snow stormed throughout the Midwest.

The plane was delayed for a couple hours and - of course - there went my connection.

Now you had some 150 or so angry passengers also having missed their connections yelling at the three ground staff, hurling abuse and insults and giving them a piece of their mind, just about as if the weather is their damn fault.

When it was my turn they informed me that there's no way I can connect to Salt Lake today and they'd put me up in a hotel in Chicago overnight. I informed her that my final destination is actually San Francisco and being nice, polite and understanding that the weather was really not her damn fault she completely went out of her way to rebook my ticket to a non alliance carrier that took me non-stop to SFO a couple hours later. Oh, and that at no additional cost to me.

Until today I'm convinced that just being nice after all those assholes hurling abuse at the poor employee did the trick.
Wouldn't it be possible to track the sun with the tree model as well?
"Just with more text" is too simplistic.
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State of the Lambda (Single Abstract Methods in Java, etc)
Yes, but IMO JavaScript, again, is not as easy to read (especially for a person who's just learning it) as Java.

(And why the downvote?)
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Things I have made by wiggling my mouse
Trees have been attempting to capture the suns energy for a long time and I'd like to see a comparison to other plants efficiency at capturing energy. Nature is powerful.
Towards the bottom of the lunk-to page:

Meta-analysis of the effect of consistency on success
in early learning of programming is our fourth paper
that was presented to Psychology Programming Interested
Group (PPIG) Annual workshop on July 2009.

Abstract: ... The test does not very accurately predict
levels of performance, but by combining the
result of six replications of the experiment,
five in UK and one in Australia. We show
that consistency does have a strong effect
on success in early learning to program but
background programming experience, on the
other hand, has little or no effect.

http://www.eis.mdx.ac.uk/research/PhDArea/saeed/SD_PPIG_2009...

In short, the jury is still out, but there is some sort of effect showing up, and it's going to need careful experiments to find out what's really going on. It does seem to show promise, though, of finding a predictive effect.
Not quite the same as an export. We do get the cash yes, although we will be paying dividends abroad in the future.

I think the thinking is long term they might invest less in the uk, and it is one of our larger companies.

On the other hand it is a great uk startup story, we just need more of them... Though there was Xensource out of Cambridge too.
Previous HN discussion of paper by same author:

http://news.ycombinator.com/item?id=1145654

Edit after kind reply by Colin:

I think the earlier discussion was especially valuable because of a checklist of factors to look at in further research offered by one of the HN participants who commented there.

http://news.ycombinator.com/item?id=1146044

Here in this discussion that began today, in another reply, a participant posted

it seemed like there was a "programming gene" (not literally) that gave some people innate ability, and without this you were sunk.

Some kind of "nature" explanation is what the human mind jumps to as an explanation of individual differences, by innate human cognitive biases. To tease out causation in such a matter would take what Robert Plomin and other behavioral geneticists call a "genetically sensitive" study design, which is lacking here. But there is such a huge body of human behavioral genetics research already, that I can confidently predict what the finding would be for anything properly called "programming ability":

1) Programming ability will be found to be heritable, that is that it shows tighter correlations among closely related persons than among distantly related persons, because all human behavioral characteristics are heritable,

and

2) programming ability is still exquisitely sensitive to environmental influences (which perhaps are not well understood), especially influences of "nonshared environment," the kind of environmental variation that results in siblings brought up in the same household differing from one another.

A reference for both general propositions that is well worth reading is

http://people.virginia.edu/~ent3c/papers2/Articles%20for%20O...

Johnson, W., Turkheimer, E., Gottesman, I. I., & Bouchard, T. J. (2009). Beyond heritability: Twin studies in behavioral research. Current Directions in Psychological Science, 18, 217-220.
0ρ☐←"Really?"
Fabric is a good choice for that. I'm worried that you don't seem to have any kind of release process in place. I hope you at least tag the code you are releasing.
Though this is only relative to current techniques for teaching programming, and we shouldn't assume we know all there is to know about how to teach programming.

There's reasons to think there's a lot of scope for improvement.

For a very general reason: that we don't really know that much about how our brains and thinking work. Once we do we are likely to be much better at identifying precisely why some people are poor at certain tasks, and at knowing how to train people to improve their skills at those tasks.

[EDIT: wording]
It seems like trees are trying to maximize the density of leaves they can accommodate, balancing that against the decreasing usefulness of each leaf. I suspect using the tree placement you could produce much more energy per square meter of land, because you could fit so many more panels.

Imagine if a tree's leaves were arranged in a grid. The footer would be enormous. If you are making a solar farm. In the desert with sun-tracking panels, I don't know how much this improves things, because there isn't much limit on land. But in a city, on rooftops, in backyards, etc, you might be able to get a lot more total energy out of a given plot this way.
It's not impossible, because the sun's relative position changes, and the closer to orthogonal the light, the better the efficiency of the solar cell. By taking optimal advantage of the height, this design is closer to orthogonality more of the time, and is thus more efficient per ground area (though not per solar cell area, as you demonstrate).

Now, if your solar array were mounted such that it actively maintained orthogonality to the sun (heliotropism), I expect you'd do even better, but that kind of active system is more subject to failure.
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All I'm asking is that if he wants more quality he contribute more quality. Yes; I'm doing what I'm complaining about him doing, however I've done it exactly once, how many pages and pages of his comment history are filled with these aforementioned comments?
Cool analysis.

Doesn't it make sense that an empirical test would not reach a theoretical max? For instance you've discounted shade effects as where he went wrong. Maybe its exactly the shade issue that makes his findings significant. Every urbanite will have to deal with it, and his array may do a better job in intermittent shade.

If mass-distributed, most folks would not be optimizing anything - install-and-forget - so its a real solution to create something that works in most environments.
They seem very pricey. They do have a huge list of document templates but I would maybe use just a couple of them over and over again. It seems to me that 300$ (I need it to be bilingual) is overkill for that sort of stuff, but again maybe it's what it costs.

Also, I could only find one plan, do you have a link to different plans?
I haven't downvoted, but you've not given any reasoning behind why you think OO code is more readable than functional.

I suspect most people think readability is more affected by style rather than choice of programming language.
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You might find some value in this article: http://www.randsinrepose.com/archives/2011/04/19/summer_inte...

Best of luck, mate! :)
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It's a facile dismissal - exactly the kind of fanboy behaviour you're accusing others of engaging in. "Oh, it's just the brand" claims imply that the speaker a) either doesn't understand or is ignoring the relationship between correlation and causation and b) appears to think complex decisions are binary.
I've wondered if engineering/CS undergrads should be forced to take a Design 101 class to learn:

* design is everywhere
* having a sense of taste is vital to anyone who makes things
* end users are severely affected by every design decision you make

I run into too many engineers that try to disregard the subjective aspects of development (architecture/UX/etc) because they believe the only worthwhile things are the logical ones.
I don't think you determine a passing result correctly.

I made several attempts as "Lesson 8: Take a While", all fulfilling the brief, and all telling me "Oops, try again".

I wasn't even being particularly perverse on all of them. In fact, when I did try being perverse, I got it to pass even though it technically should have failed.

This is an example of perversely passing:

var times = 0;
while (true) {
print( "hello" );
if(times >=100) {
times = 2;
break;
}
times += 1
};

The brief is "Your turn! Let's make a while loop that prints "hello" twice. It's outlined in the editor."
It's actually up to you whether or not YC made the right decision. If you stop now, they were right to not accept you. If you keep pushing forward, you can make them wrong. If you push forward and get some traction, they might realize their mistake when you apply next time. A co-founder is probably a good idea regardless.
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I actually like long games. I don't think I've ever played a game without finishing it. Maybe I'm a bit obsessive, that's why I try to not play video games any more!
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And I really appreciated that. It was the first time I had read a comment by him that wasn't putting down someone's submission or complaining about there being a similar article. I wish he'd spend more time contributing comments like that. By the way, thank you for your comment there Colin. I truly was glad to see you don't only make comments on dupes.
Actually no, WoW is certainly one of the games that a lot of older people play, in my view that's because if you get addicted to a specific game (which for games like this does genuinely happen), you are less likely to stop and think "what do other people think of me playing this". But certainly WoW is dominated byy younger plays in their teens and 20s.

The real thing that skews these stats is that "gaming" includes angry birds, it includes facebook games, it includes... etc. etc. Those are the games that skew the stats.

People actually in the industry see past it, when marketing WoW, or Call of Duty, or whatever latest big title, the focus is generally described as 18-30 (or sometimes 18-25), with the assumption that despite not saying it, naturally you also want to attract the under 18 market as well. It's just the media who get fooled by the figures into thinking gaming is for the old, now.

Edit: that's not to say that it isn't going to go up (and has already begun), because obviously as the generations move up, they carry with them acceptance for gaming. But it hasn't yet happened nearly as much, for what we think of as big video games at least, as numbers suggest.
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It reminds me of the text-based Nethack, Moria, Angand (rogue-like) =)
The goal of information design and visualization is not "stunning infographics," it's finding ways to visualize data and make it more viscerally understandable.

Ben Fry is an amazingly talented information designer, and his book Visualizing Data is a must-read for anyone interested in the field.

Sadly, most of the "infographics" craze right now is focused on being "stunning" rather than being informative. Graphic designers run amok, creating beautiful (or at least cutesy) images that fail to clarify, or worse, confuse with inaccurate scales, inappropriate juxtapositions, or sins of omission.

Data visualization can be elegant and informative. "Infographics" usually live somewhere on the pages of USA Today or GOOD magazine.
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Maybe you're working long hours to fix the process?

That's the only reason I work long hours.
I don't think it will happen, but the fact that it seems entirely plausible is what is interesting. Can Google keep buying platforms and keep make it free?
I already contribute items I believe to be of quality, both submissions and comments. Ceasing to comment on duplicates and breaches of the guidelines won't change that.
This is great. As a designer, I've wanted to find some sort of learning mechanism that walked me through coding and really explained what each part does. I found TryRuby the other day and loved it. This seems to be in the same vein but Javascript focused (which is awesome because I want to develop a better knowledge of front-end dev). Really enjoy this and hope it sticks around for a bit, I think it will be really helpful.
Another reason, not covered in the story:

Of your production budget for games of yesteryear, ~90% went to creating art/story assets (which can be trivially stolen) and ~10% went to creating the multiplayer mode (which, if you host it on your servers, can't be trivially stolen). Multiplayer programming is more sophisticated these days than it was previously, but hasn't increased in expense by orders of magnitude. Asset budgets have gone up by over an order of magnitude.

Gamers influence the production of future games by voting with their wallets. They overwhelmingly vote for value locked down on servers (or consoles, I suppose) because that is what they actually buy.

Similarly, why do games with persistent characters keep doing well? Is it because gamers are completionist and we are learning how to push their buttons with regards to avatar attachment really well? Yes, true to a point. Is it because persistence is achieved via the server and this acts as DRM-by-stealth? Also yes.
Hey.. physical working is not lifting heavy stuff all the day, you know... esp. not when doing carpentry which I explicitly recommended. Your physical effort is kinda split into small chunks, you do different things! It's hardly like a competitive sport, where you do the same small closed set of things for, say, two hours, without interruption.

Please also consider that sports, while wonderful, are still somewhat artificial activity. It's not what you do to get things done, it's just some extra stuff.
I'm not so sure I wanna use anything from a site which claims I'm using a buggy version of Chrome that they don't support.

Especially not as I'm actually using Safari 5.1.
Good lord, thank you. As a math guy, numerology drives me apeshit.
I wonder, if they checked some languages that includes pronouns in verbs.

For example in Polish pronouns are mixed with verbs - you say "szła" (she went), "pójdzie" (he will go) or "idę" (i am going), you can add pronouns "ona szła", "on pójdzie", "ja idę", but that's only stylistic choice.

Most people rarely use pronouns (it's considered verbose, and sometimes egocentric to add "ja" (I) when you don't have to).

I suppose in Polish usage of pronouns would not predict anything, because it is not determined by structure of text (like in English), but by stylistic choices of speaker.
Is it just me, or do most articles about young kids doing intellectually notable stuff start out with something along the lines of "while most 13-year-olds spend their free time playing video games or cruising Facebook...."
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