skysight-inc/HackerNews huggingface dataset:
Seems kind of overdone. You can barely use the sidewalk in Tokyo without getting knocked down by a middle-aged woman with a huge sun-visor, a bag of groceries and two kids strapped to something like this:

http://us.sanyo.com/Commercial-eneloop-bike

They're just like a regular bike but they assist you when you climb up hills or just plain get tired. The battery behind the seat-tube slides out for a recharge. I would say about 20% of the bikes you see parked by a train station are electric hybrids.

edit: I will say though, that the foldability part of this is nice, but I prefer the hybrid approach of a standard bike.
Wow I feel old now - the first one I was around to buy in that family was the 8088! I remember getting excited when we got our first 286
On Linux you need to enter your password to run sudo. If someone can read all the files in your home directory but not make you enter sudo, then they can see your ssh keys but be unable to replace /usr/bin/ssh
Is Java A Dead End For Enterprise Application Development? [pdf]
I don't like your cow example because it really isn't a cow, that's the absolute truth.

Maybe a better example would be "is the earth rotating around the moon or is the moon around the earth?" What if the moon and earth had the same mass?
> You really have to know the fundamentals of design, grid system, the trends, psychology of UX, and know-how to using the software packages. ... golden ratio, rule of thirds, color theory ...

I disagree. I literally know none of those things, and have never even heard of most of them. I would consider myself a fairly competent designer having done several freelance projects and as well as my own (http://letspocket.com, http://madebyloren.com, http://snowday2011.com, http://beetnikaesthetics.com) and always receiving the highest complements on my work. I think you're approaching this from an academic standpoint and neglecting the fact that it is very, very possible to learn design from a "hacker" standpoint.
> Sure, we can allow that, but it makes the internet more confusing and less safe. When anyone can register microsoft.x, there is the legitimate use case for the ice-cream manufacturer microsoft, but more likely it will be a scammer or a phisher or something like that.

So we should give up our freedom because there are bad guys abusing that freedom?
JShowOff – Simple jQuery Content Rotator
Link to the article mentioned in the presentation:
http://blogs.forrester.com/mike_gualtieri/10-11-23-java_is_a...

Previous HN entries about the article (no discussion unfortunately):

http://news.ycombinator.com/item?id=1988695

http://news.ycombinator.com/item?id=1935838
How to make 3D Wheel and Rim in 3D Max
You do not really want the raw data (it generally looks something like this[1], from the COR telescope, "FITS" format[2]. Warning: mix of ascii and binary). Anyway, this[3] links to where they are putting the raw and first-order-derived mission data they have released so far (if you want more of what you saw, you probably want SECCHI). And here[4] is an example of said derived data. And this[5] seems to be where they seem to be putting highlighted derived products for public outreach.

Generally, there is very little money and little expertise for polished public outreach efforts (they are scientists, not web developers, after all). There is a good chance the scientists behind [3] are doing some of it in their "spare" time. Feel free to drop them an email and let them know it is appreciated :)

1) http://sharpp.nrl.navy.mil//postflight/lz/L0/a/seq/cor1/2011...

2) http://fits.gsfc.nasa.gov/

3) http://stereo-ssc.nascom.nasa.gov/data.shtml

4) http://cdaw.gsfc.nasa.gov/movie/make_javamovie.php?img1=stb_...)

5) http://stereo.gsfc.nasa.gov/gallery/gallery.shtml
Actually, I'd hope that he could take his politics/economics and reasoning and simply go elsewhere to expand on them, as this is not an appropriate venue for those sorts of discussions.
JavaScript Class Patterns
A selection of patterns to add class semantics to JavaScript - for object oriented JavaScript.
South Beach Diet
South Beach Diet is a new way of eating allows us to live contently without eating the bad carbohydrates and fats. South Beach Diet works in phases, the first two for a specific timeframe and the third phase for life.
"This is a big moment in solar physics," says Vourlidas. "STEREO has revealed the sun as it really is--a sphere of hot plasma and intricately woven magnetic fields."

Is it just me, or does that sound suspiciously like it is from an Onion article? I mean, it's very cool (and presumably useful) to have a full-time 360 view of the sun. But I'm pretty sure the idea the sun is a sphere of hot plasma is not startlingly new information...
Netbooks use way cheaper hard disks, instead of ssd.
Netbooks don't have touchscreens.
Netbooks don't have GPS, accelerometers, and gyros.
Netbook don't have a battery that last 9 hours.

If there is a netbook with this specs,witch they are, it is going to be as expensive as tablets.

So, there is no "equivalent netbook" with half the price. Putting a pixel qi screen to my netbook cost me $275, a touchscreen $100 plus shipping cost, plus my time, plus the risk I break my netbook(I nearly broke it when bending one of the screen connection pins).
The link brings you to an information-free landing page.
Bicycles enjoy a kind of special status in the US when it comes to tort law and manufacturer liability that is shared with many other older designs. People know they are dangerous and automatically accept this. Things like table saws, ladders, kitchen knives, and roller skates are other examples of things that fit this category.

Inventors of this type of device face a steep uphill climb in the litigious climate of today's United States because its so completely different than traditional bikes. I'm not saying its impossible, I'm just saying that things like this will be magnets for the lawsuit-lottery.

I wonder what the ratio of lawsuits/Segway vs. lawsuits/Schwinn happens to be...
>> So now the main accomplishment of the current project lead is writing detailed documentation. Those that can - code, those that can't - write very detailed documentation.

So we're now running people down for decent documentation? Seriously?
I was expecting some graph at least...
IMHO the foldability part is the main point. The typical usage seems to be home -> bus or tube stop -> public transport -> office. Here in UK you can't take bycicles in buses or tube. There are indeed foldable bikes (http://www.brompton.co.uk/) but they are a pain to (un)fold and they are not electric.

Still, price and limited autonomy are real issues. At 1K$ and 20 miles of autonomy I would probably buy one.
AP Fearful Russian lawmaker flees to US
I thought I did, and I would see the fixed frame of the distant stars as a "slowest timeframe," although I suppose there is obviously a slower one. Is that what you meant, or am I missing something entirely? Give us a clue!
Cell phone spy
retrieve deleted message
1. He says 150 light years out of 100,000 light years. Then he writes 50/100000, just losing a factor of 3 for no reason at all.

2. A typical sheet of writing paper is 10um or so in thickness and 20cm or so in extent. The ratio is 1/20000, which is 10x smaller number than even his (wrong) 50/100000.

3. His figure of 150ly is based on the distribution of molecular clouds. This seems an absolutely ridiculous way of measuring the thickness of the galaxy, about as sensible as measuring the dimensions of a human being by the distribution of their stem cells or something. It seems that the choice was motivated by wanting the smallest possible thickness figure.

4. The figure of 150ly for molecular cloud heights is too small. See figure 3 of http://iopscience.iop.org/1538-4357/619/2/L159/pdf/18343.web...; the right-hand portion of the figure shows average heights, which indeed are in that range, but as you can see from the left-hand portion there's a lot of variation and there are plenty of molecular clouds well above 150ly. (Note that the vertical scale in that figure is in parsecs; a parsec is about 3.26ly.)

So. The author of that page (1) selected the "thinnest" measure he could find, (2) used too low a value for it, (3) dropped a factor of 3, and (4) still got a result 10x thicker than a typical piece of paper.

(That's assuming that "flat" means "thin". The Milky Way is not particularly close to being planar, either.)
I doubt many japanese take those on the subway though! I don't recall seeing standard bicycles on the tokyo metro at all, in fact.

To the person who said you prefer to lock it up outside a grocery store - what exactly stops you from doing that with this device?

The cost is a major stumbling block; mind you, I see a lot of heinously expensive road bikes around London, and I suppose their actual utility is lower (harder to take onto buses and rail services; harder to store at home, in the street or at the office; not electric)

I'd be interested to see a study done on the device's eco credentials; I've heard persuasive arguments that electric bikes are greener than pedal powered bikes when you consider the petrochemical requirements of a pedal bike's energy source (your food)...
Yes, there are many definitions. None of them, however, gives the result that the Milky Way is flatter than a piece of paper. Not even the (rather silly) one used by the author of the web page you quoted; his numbers are wrong.
It would be great to see some real numbers on these graphs as there is a danger that some days are being reported as really busy when the n is really low.

e.g. http://whenshouldivisit.iamdanw.com/venues/2661544

Is this just one person each day?
Much discussion here:
http://news.ycombinator.com/item?id=2166555

Also submitted here, although subsequently killed:
http://news.ycombinator.com/item?id=2174333
RoboEarth: A World Wide Web for Robots
Paper Accelerometer Could Mean Disposable Devices
Do Mobile Electronics Really Interfere With Flight? They Could
Clearly someone hasn't read PG's The Trouble With The Segway: http://paulgraham.com/segway.html
Why do new build systems have to use some clunky old make style syntax? For me speed is hardly a primary goal. A build system must be understandable, readable and easy to debug. For starters, it should have an easy to read syntax.

If you have a build system which your users are also concerned about, readability and maintainability are a lot more important. SCons managed to achieve most of this by using a Python syntax. But its behavior can be quite unpredictable at times.
Glass-half-empty vs graph-half-full problems abound in UX and the answer is always to use the one that tells the least lies. So in this case the graphs should represent people - how can you represent emptiness?

I would like to see actual people on the graph (not one person scaling) as this will show you exactly how busy each place is - and, if you know how big a place is you can estimate how full it will feel.
AXA in £178m settlement for hiding software glitch
Amazon S3 Cloud Stores 262 Billion Objects
You can already run some CPAN modules in Rakudo (Perl 6) on Parrot. See Blizkost (which comes with Rakudo): https://github.com/jnthn/blizkost

Here is an example which works (using CGI module from perl5/CPAN):

use v6;
use CGI:from<perl5>;

my $q = CGI.new;
print $q.header,
$q.start_html('Hello World'),
$q.h1('Hello World'),
$q.end_html;

PS. re: some CPAN modules - Only "well behaved" Perl5 modules will work. I've tried four and got one to work. However this is a good start methinks!
What about multinational companies like paypal?

Would you recommend a non-internet-savvy user from china to rather go to paypal.cn or to paypal.com/cn ?

What would a non-savvy user normally do?

In this case paypal.cn redirects to paypal.com/cn, but would you have known?

Another example: Python.com redirected to a hardcore porn site for years. Not that there is anything wrong with that, but I think both sites and their respective audiences would have been better off if there wasn't .com, .net and .org
After Acquiring Huffington Post, AOL Renames TechCrunch To HuffingtonCrunch
Yup. And you can then use the FFT to do super-fast multiplication. (I think you omitted something like "pointwise multiplication" after "equivalent of".) This is called "Strassen multiplication"; you can actually do better by doing your Fourier transforms not with complex numbers but with a different algebraic structure; that's called Schönhage-Strassen multiplication. I've seen it claimed that Strassen is actually faster in practice than Schönhage-Strassen.

Your numbers need to be pretty big before the benefits of this sort of algorithm outweigh the overheads, though. For instance, GMP uses naive multiplication up to about 600 bits, various Karatsuba/Toom-Cook schemes (divide-and-conquer) up to about 120,000 bits, and FFT after that.
Thanks for the heads up, I've fixed the all.css 404.

The raphael code could do with cleaning up too
40k pageviews to a blog entry should never crash your server.

And yet it does all the time. It looks like this guy has a typical LAMP stack running on a Linode slice, presumably running a single query to return a single record and render it as HTML.

Even assuming that all 40k pageviews came in one single hour, that's still eleven requests per second, which gives you 100ms to serve each one. That's like years in CPU time. There's no reason that should even spike the CPU off of zero. There's definitely no reason you'd need to worry about caching for a load that small.

I just don't get it.

Is LAMP really that slow out of the box?
CSS Code Snippets To Make You A Better Coder
It is almost impossible to gather in an article all the CSS code snippets that could help you in the future but here are some of the ones that you would need more often than others. Don’t get scared by the length of some of these CSS hacks’s code cause they’re all easy to implement and where is the case, they’re well documented. Besides the ones that solve common and annoying problems there are also some that solve new issues brought by the new technologies.
I think the problem is that it would break existing network infrastructure.

You need a last component to the domain name to signify that the ip you want to resolve is outside of the local network. Imagine what would happen if somebody would register "localhost" or "main-server"
I've definitely had dreams with people speaking to me, but even in a language I'm learning -- the strange thing is that I can remember struggling to parse and comprehend what they were saying, as if their level of speaking ability was a bit higher than my own.
Cairo protestors sitting below revolutionary graffiti? [IMG]
Python.com redirected to a hardcore porn site for years

It could have redirected to an online store selling snake aquariums.

And which would have been more "legit" in the eyes of the public?

The homepage of an obscure tool related to software developers, or something actually related to pythons?
Seriously, I can buy 4 motorcycles for that kind of money.
How's it deal with rain/dirt?

Forget that, how's it even deal with rough/uneven pavement!?
UK startup, want to advise government about IP law reform?
Ernest McCulloch dies: Scientist who first identified stem cells was 84
Thank you for the 'how this works' section, which is 'must have' for projects posted here!
Focus of Cloud Implementation Depends on the Implementer
Text messaging has become the prevalent form of mobile communication worldwide.

an average of 357 texts per month in [Q2 2008 vs] an average of 204 calls

I would think this suggests that calls are still the bigger method of communication. The average call will last much longer than what could be written in 160 characters. Also, a ninety second call discussing something could easily span a number of text messages back and fourth.

Edit: New point after reading further:

Just look at your average e-mail today, he noted. Many can be summed up in the subject line, and the rest often contains just a line or two of text asking for a favor or updating about a particular project.

First, I don't accept the premise. Trying to suggest that 160 characters is more or less enough for the average email is laughable. Hell, a lot of the time it's not even enough for an SMS message or tweet.

Second, why are they even being compared? Is SMS meant to be just the same as email but on your phone? Not in my book...
U.S. mobile users sent an average of 357 texts per month in the second quarter of 2008 versus an average of 204 calls, the report said.

The average person sends ~ 10 text messages and makes 7 calls a day?

Wow, I'm behind the curve ...
As a ridiculously happy Brompton owner and fanboy (how's that for a disclaimer!) let me assure you that they are no pain at all to fold or unfold.

I have challenged a dozen people to get their bikes locked to a post in the time it takes me to fold the Brommy. No one has succeeded to date.
It is actually having quite an impact in Auckland. I don't care too much for the rugby, but I welcome any improvements to our transport system etc.

http://www.auckland2011.com/Getting-Auckland-ready.aspx
See also http://gittup.org/tup/tup_vs_mordor.html which compares tup to "the All-Seeing Eye of Mordor". Not an actual build system, alas, but a hypothetical perfect one that Just Knows what files need rebuilding and rebuilds them with no overhead.

It turns out (not terribly surprisingly, given how it works) that tup's overhead is very small.
Thanks very much for posting. I'd find it very irritating to have to rely on other CS students to give me any hope of getting to where I want to be, where as if I could program, I could build my ideas as they came, rather than having to wait 6 months before I built a relationship with a business major.

Programming seems the way to go :)
The image in the article is also not really low-res. As far as I can see Stereo’s CCDs have a resolution of 2048x2048, the image in the press release is 1280x720, that’s not exactly a substantial reduction (also considering that the two images from the two spacecraft were heavily distorted to create this side-view of the sun).

By the way, I found this wiki about processing and analyzing SECCHI’s images, if you wanted to you could presumably learn about it and start processing images on your own: http://secchi.nrl.navy.mil/wiki/pmwiki.php?n=Main.DataProces...
It isn't, he's from Slovenia. :)
Lots of the snippets mentioned (and even more that are not!) are already included in compass (http://compass-style.org).
Myrtle Beach Condo
The various Myrtle Beach condo accommodations utilize the space for all its worth by including 4 bedrooms, 3 bathrooms and a kitchen into the fold. The living room area also offers a vast space to move around in.
Sayali Bhagat, Vidya Malvade, Parizad Kolah looking Hot At Areopagus Spa Launch
the mean isn't a robust statistic. i don't think your inference is correct in this case.

a single user can theoretically throw the mean off from the central tendency completely. i would imagine there are a few users that send a lot more text messages and calling more than most people, biasing the result. it would be more useful to talk about the median in this case, i think.

http://en.wikipedia.org/wiki/Robust_statistics#Examples_of_r...
I remembered a mixergy interview with Andrew Mason, who said that Groupon's secret lies in their writing.

I duly subscribed to the list and unfortunately found it waffly and difficult to read. There is a thread on Quora about this.

I wondered if Groupon does any testing at all and Andrew doesn't claim to do so.

I think these ads are an extension of their smug copywriting. They'd have to do a lot better than this if they want to win hearts and minds.
None of the existing sites like this (http://npm.mape.me/, http://search.npmjs.org/, and now yours) don’t do anything special when a project has multiple maintainers, even though that information is all in the package.json file.
Possibly, a reason, but I think the main reason is to do with scale manufacturing costs and efficiencies.

It's fairly common practise to make 1 high spec version of a chip and then lock parts of it to make the budget versions.

For example, the AMD Phenom "Toliman" (X3) and "Kuma" (X2) CPUs are just "Agena" (X4) chips with 1 or 2 cores disabled. (http://en.wikipedia.org/wiki/List_of_AMD_Phenom_microprocess...)

When the X4 chips are manufactured they are tested, and if a core fails any tests it is just locked and sold as an X3/2. This increases manufacturing yields by making use of some of the failures. Of course as there is also higher demand for the lower-middle spec CPUs, sometimes perfectly working chips are restricted to meet the supply requirements for each market space.

And of course, often the different clock speeds are really just the same chips with locked multipliers.

I believe Sony followed a similar procedure for the PS3 cell CPUs - http://en.wikipedia.org/wiki/Cell_%28microprocessor%29#Comme...
They're not limited to 160 characters, any GSM phone is able to create and receive segmented SMS (a single message over multiple segments), up to 255 segments of 134 bytes.

I have read CDMA phones are not able to perform such an amazing feat though.
I think there isn't going to be a system where the domain name points to the site that is more "legit" or "relevant", that is the job of search engines. Laypersons already use google instead of dns and enter "facebook" or "facebook.com" because they 1) don't have to remember the TLD and 2) get to facebook even when they made a typo.

So a domain name should probably still belong to whomever registered it first. I'm not a DNS wizard but using whois I figure python.com was registered one year before python.org, which would have become python-lang.com or something more descriptive if there weren't these other suffixes.
Interesting. My logic says that nearby cell towers would cause more interference (during take-off / landing), because the tower is sending much stronger signal than a phone.

(A tower with high gain antenna can easily pick up a weak signal from a phone, while the phone needs relatively strong signal for its low gain antenna. Or maybe the phone signal is still stronger in the plane due to the inverse-square law?).

Then again, I'm not an EE.
Amazon drought: A growing concern
> Second, why are they even being compared? Is SMS meant to be just the same as email but on your phone? Not in my book…

They are both ways to interact with others. The argument here is that most communication do fit in 160 characters when pared down to its essential components, and thus for most communications SMS are sufficient to replace emails.
Frankly, I don't see the point of electric bicycles. I have not seen any electric bicycle that offered any real advantage to a normal muscle-operated one.

As a matter of fact, bicycles are one of the oldest and most refined technologies available to us. They are marvelously efficient, they are light and versatile. Adding an electric motor and battery makes them heavy, limits your range and decreases the amount of control you have over the bike. Which is nice for, say, elderly people.

And maybe you are American and you don't know this, but many European countries have excellent biking routes everywhere and cars actually brake for cyclists. All that talk about cycling being dangerous is mainly an American problem. In most other countries, bikes are actually a lot safer than cars for the simple reason that they don't go as fast.

I think bicycles are plain fun. I ride my bicycle to work whenever I can. I love my bicycles. All three of them!
Productivity tips, tricks and hacks
Here is a more recent article from the same author: http://spectrum.ieee.org/robotics/robotics-software/economic...
Age under 18, Mostly SMS
Age under 18, More SMS than calls
Age under 18, Roughly equal
Age under 18, More calls than SMS
Age under 18, Mostly calls
Age 18-25, Mostly SMS
Age 18-25, More SMS than calls
Age 18-25, Roughly equal
Age 18-25, More calls than SMS
Age 18-25, Mostly calls
Age 25-40, Mostly SMS
Age 25-40, More SMS than calls
Age 25-40, Roughly equal
Age 25-40, More calls than SMS
Age 25-40, Mostly calls
Age 40+, Mostly SMS
Age 40+, More SMS than calls