skysight-inc/HackerNews huggingface dataset:
One fantastic presentation given at HomeCamp 4 last month was by Moxia. Their angle on this is retrofitting homes to use DC sockets rather than AC (via USB ports and convertible DC cables, so you don't have to carry the brick around with you). They install batteries, an AC/DC transforming battery charger (charging overnight, using off-peak, cheap electricity) and solar panels (presumably wind turbines and other generators can be used too). All with clever management and monitoring integration. The point of this (besides the convenience of having DC sources for everything, and LED lighting) is shifting your power consumption off-peak, and to an extent, offgrid.
Given that they seem to favor consistency in the CAP model, it would be closer to Hbase in this regard. Cassandra is, by design, eventually consistent and can not offer these same guarantees.
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The article outlines the security of the market place. They rely on mandatory TOR to protect connectivity endpoints for buyers and sellers.

Financially, bitcoins are traceable as every transaction is public and recorded. It will be more difficult to trace back to an individual without some serious international warrants. But it's doable since you can't just buy bitcoins with cash. The purchase has to go through a clearing house using credit card, wire transfer or cheque. Not sure if Western Union is accepted but that might help anonimity.

What I find interesting though is that they allow buyers to trust sellers based on reputation and feedback. It makes it much harder to infiltrate the system. A highjacked\confiscated account with good ratings is probably how law enforcement might try to take this down. But it's difficult because the work that needs to be put in to catch 1 individual will not get you very much. I doubt law enforcement will do very much about it when there are much bigger fish to fry in local cities.
So the operators of a web dev education site apparently don't know enough themselves to at least look at their website on Windows before launching?

Hint: if you are trying to sell stuff, it's probably best to reach out to the widest possible customer base. I can see no business reason to target Mac/Linux users only.
Did you intend the flurry of "mee too" comments?
The amount of control the Debian team wants to retain and the speed at which the Ruby/RubyGems community moves are incompatible. Trying to use Ruby from apt is some kind of sick, masochistic joke.
Consider adding a feature to view the videos at higher playback speeds.

Even someone who is only comfortable at 1.1x (not hard) could save hours of their time if they like your site.

(I watch TV at 2x generally, huge time saver.)
Well yeah, but then you're proposing a brute force against the salt and the salt can be anything of any length.

So if you're assuming a salt that can contain standard latin letters and digits and is 256 in length, that's 62^256 possible variations.

Do note that I'm not saying here that MD5_HMAC doesn't have flaws, but it definitely doesn't have the same flaws as MD5, cracking it ain't easy and I can't find a reference for an instance in which this was actually done.
Whatever Happened To Anonymous' Operation Cartel?
Save Our Nature with Forestry Investment
That's good news.

The Introduction to Development video does not currently have them and I haven't really poked around at other videos.
Samsung VP Gavin Kim to lead Microsoft’s Windows Phone product management
My samsung is very bright, but luckily it has presets I can cycle thru... 100% during the day, 0% at night.
> Covering the whole solution space would be an enormous (as compared to just huge) undertaking

A HD 5870 can churn through MD5s at about 2.8 billion/sec - 62^8 inside 24 hours on a single unremarkable GPU.
Agreed - if testling/browserling are not positioned for functional testing, I'm sorry for not catching on to that. In my defense, you could easily market it as a functional testing tool (sort of how Selenium could support unit testing in the browser since it can modify the dom letting you mock out external calls, even though it's not a natural fit for the tool)

Also, thanks for explaining stackVM. That's a pretty cool idea - it's not a problem for me where I am now, but anecdotally the flash/java console plugins can run into issues with corporate firewalls and browser security policies so something based on html5 canvases / http long polling (if I'm not assuming too much on the implementation side) could help solve that.
except you shouldn't have 'the' salt, you should have 'a' salt for each user...
uTorrent's UDP congestion control algorithm (LEDBAT) goes further than playing nice with TCP. Unlike TCP, which only responds to packet loss, LEDBAT also responds to delay. This makes it yield remarkably quickly to anything else that might use the link.
It's hoaxes all the way down.
I think it could have worked a year ago. Then, they had a very plausible "reader's tablet" - something with a reading focus that does more than an e-reader, but without being as bulky/expensive as the iPad.

But they launched it with no 3rd-party apps, so instead it appeared on the market as merely a "color e-reader" - something that costs more and has less battery life, all in the service of a color screen that mostly only provides a tangibly better experience for a subset of periodicals. But nobody really reads The Economist for the pictures, and People subscribers probably aren't big players in the target demographic.

They did later bring out an app market. But it was months late and anemic; not the kind of thing that was likely to turn many heads. And they didn't push that idea hard. So Amazon comes along and does, and I fear that from here out anything that B&N could possibly do will be too little, too late.
Hack of the day: Rendering HTML to a Canvas Element via SVG
3. It's like the Mozilla Firefox vs Debian Iceweasel controversy. Or Redhat vs Centos. The code is open, but the trademarks are copyrighted. If Growl is a trademark and the brand artwork is non-free, then forks can't use it without permission.

I kind of respect the choice of Mozilla and Redhat to defend their trademarks because it's partly an issue of quality control and reputation. But I do prefer projects that put branding under a creative commons license. It's closer to the spirit of free software. I suggest the forked Growl choose a new name and put the branding under a free license.
Rackspace cloud was down a good part of this morning
These are just tools. Each has its place.

Example: I wrote a GA-based solver in Objective-C. It worked but it was painfully slow. I re-coded in nice-clean C. The plain C version was incredibly fast and efficient in every way. Best of all, it is highly portable too.
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A question on the practicality of expensive compute time for password hashes:

If somebody got read-level access to your password hashes, it follows (based purely on the assumption that any app with the rights to read the hash will probably have the right to change it when applicable) that one could simply overwrite the password hash with a new one that is already known, gain unauthorized access, and change the hash back to prevent the user from finding out. Unless you really need that password to crack multiple accounts that might be reusing it, it seems unnecessary. (And honestly I wouldn't care to implement these special password hashes just to protect extraneous accounts of my customers which I don't control)

edit I should clarify that while I agree that expensive compute time for password hashes helps prevent the ultimate compromise of a user's password, I find it a much more worrisome prospect that somebody got access to the database in the first place. To me, a person's password strength is almost irrelevant compared to the importance of preventing brute-force attacks on a login API or ensuring the integrity of the password database and db apps.

That being said, for those wishing to implement a bcrypt-type hash:

perl -le'print crypt("something", "\$2a\$random")'

should give you blowfish-encrypted password hashes on systems with it patched into glibc. ("6" instead of "2a" for SHA-512)
I think the best thing for everyone to do is to calm down and not go running to Costco/Amazon/Newegg to hoard hard drives.

http://www.npr.org/blogs/thesalt/2011/11/02/141771712/how-fe...

The perception of scarcity, which leads to hoarding, only makes the scarcity problem worse for everyone.
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Joel Spolsky made a similar point in one of the stack overflow podcasts.

He and Jeff were talking about twitter's downtime and Joel said something along the lines of "and look at how all those other startups destroyed twitter by having more up time."

The point being is that twitter just went ahead and shipped. They were able to fix their software issues after they found out what their product actually was.
Sergio Focardi Presents TED Talk on Nickel/Hydrogen Cold Fusion
They should do some kickstarter projects around this. I bet they could find a load of libertarians going all nuts over the idea. Wouldn't mind throwing some money at it myself.
POLES MARMER MURAH JAKARTA - Bloglog.com
No one made any architecture decisions in the few hours this was a story. You managed to cause a dustup and come out looking like a sociopath.
Function Hooking and Windows Dll Injection
Good to know. It could have been clearer, though :)
We've added a lot of new content that wasn't on Think Vitamin Membership. However, yes, all the older content from Think Vitamin Membership has been retained in the Archive. It's still valuable so we didn't want to throw it away.
This is akin to greeting Google's launch with:

"LARRY PAGE this is lame in that it's a crummy featureless version of http://www.yahoo.com

You are using the same internet to search on.

Yahoo makes you actually log into a nice portal and had search capability long before you guys."

Just because there's a competing product in the marketplace doesn't devalue what Ryan's doing here.

In fact, I think Treehouse is already outstripping Codeacademy on breath of education and video quality.
Nimbus Data, a maker of of flash storage, wasn't too happy about NimbusDB and the brand confusion
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if they can't keep up a demo website, there is no reason any developer should trust pioneer to invest their time in testing / using zypr...
I'm very interested with that kind of projects, but I'm always wondering what to do once the hardware part (and software controller) is done. By that I mean the artistic part of it.

For example, take this sculpture: http://vimeo.com/21904379. I was thinking it could make for a very cool sculpture at home. Hardware-wise, it's very straightforward, but I wouldn't know what to hook it up to software-wise and how to show interesting patterns.
If this is true then that was a particularly shitty troll. What motivation would someone have to do this? It couldn't possibly have been for the lulz, or could it?
I hope entrepreneurs don't start confusing accountability with narcissism because of Steve Jobs. You don't have to be a rude, difficult, bully to get things right. Not only would Steve tell people that their work sucked, but when they finally produced something he approved of, he would often act as if it was his idea. His romanticized view of the world was also impractical, from the meaningless paint job of the NeXT factory to his refusal to have his body "invaded" by surgery. What point does it serve to go through 64 nurses or worry about the design of your oxygen mask? It's absurd and accomplishes nothing.
Thanks for the heads up. We're currently working on the PC font issue.
Great idea, kind of like home user asset management i guess. I'll definitely be signing up. It's looking pretty polished too.
Self-service kiosk
Could we please never ever use the term 'hipster' in relation to software development ever again?
Although immature code may work fine and be completely acceptable to the customer, excess quantities will make a program unmasterable, leading to extreme specialization of programmers and finally an inflexible product. Shipping first time code is like going into debt. A little debt speeds development so long as it is paid back promptly with a rewrite... The danger occurs when the debt is not repaid. Every minute spent on not-quite-right code counts as interest on that debt. Entire engineering organizations can be brought to a stand-still under the debt load of an unconsolidated implementation, object-oriented or otherwise.

Ward Cunningham (http://c2.com/doc/oopsla92.html)

See also, Technical Debt (http://en.wikipedia.org/wiki/Technical_debt).
How can it take 3 days to find someone at a hospital? I mean, obviously it can, but still, this seems to be an inordinate amount of time to find someone.
If true, a truly shitty thing to do.

It would be great to find out who did the (possible) troll - tarnish their brand.
I'm afraid we're not officially supporting Linux, so we've done zero testing on the platform. I'm sorry.
The person claiming it is a hoax submitted the story to HN, but only after another account (nomoremongo) posted it in a comment. These do not appear to be the same person:

http://news.ycombinator.com/threads?id=nomoremongo

http://news.ycombinator.com/item?id=3206367
Untethered jailbreak for iOS 5:Chronic Dev Team found bug
An interesting map to look at: http://www.ie6countdown.com/
Take a look at http://camelegg.com (a Newegg price tracker). Search for a hard drive, say 'Western Digital Caviar Black'.

Click on any of the drives and notice the more than 100% price increase on every single drive.
Internet thugs Realnetworks lose case against Hilbrand Edskes
I don't say anywhere that the full tail doesn't exist, do I? I simply point out that it's very lucrative for the platform provider and not very compelling for a content provider.

What counts is attention not access: there is no long tail of attention, full stop.
Google Creates Job Search Engine For U.S. Military Veterans
This link, posted here on HN, contains barely anything except a summary of another thread here on HN, which is barely even off the front page. Time to take a break, guys.
It's interesting that he started the discussion with a reminder of externalities, pointing out that the negative externalities from fracking were not properly internalized.

I'm surprised he didn't mention the FITs in Europe, and the cheap loans in China. Was he making a singular point of the United States, or did he overlook places where solar is relatively advantaged relative to fossil fuels?
Hydro is already used for peaking power, at most we would retrofit things it increase peak power output where it's reasonable to do so.

Building 4 hours of storage is a rather extreme step that's also extremely unlikely. California already has a 40c/kwh cost differential between peak summer demand and the middle of winter, but nobody is building massive grid energy storage to smooth that out. Even over the course of a single day you could make 10c/kwh just from grid storage but nobody is building it. Rather we add peaking power plants because base load power + storage costs more than peaking power plants and that's likely to continue to be the case even in a world dominated by solar + wind power plants.
The parent to my post specified "all use the same salt".
Moore's and Kryder's law are about feasible storage/transistor fabrication density increasing, not about whether or not those advances translate into savings for the consumer.
Something like 40% of Mozilla code is written by community contributors, which is quite remarkable. How many of those non-employees are paid by someone else specifically to work on Mozilla I don't know. i.e. I don't know if IBM pays people to work on Firefox they way they pay people to work on Linux.
That's a book I'd love to read: "How to Mesmerize Like Steve Jobs"
There is a significant difference between European privacy laws and those in the US. Generally in Europe privacy is treated as a fundamental right; in the US privacy laws are implemented only when it is necessary to protect the citizens from harm by corporations or industry.
I had an opportunity to try out the Fire and didn't think that the display was terrible at all, for what its worth. Seemed crisp enough to me.
I felt a bit bad a about the lack of figures in my assertions.

Regarding supply:

"HDD shipments in the fourth quarter will decline to 125 million units, down 27.7 percent from 173 million in the third quarter [...] Thailand is the world's second-largest producer of HDDs after China."

Regarding parts:

"component makers like Nidec [...] supplies more than 70 percent of all global HDD motors"

In other words, production will likely continue to drop until production resumes.

Source:

http://www.macworld.com/article/163336/2011/11/thai_floods_h...
Lovely, now the cycle is complete and we're reading about (and commenting about!) stories that refer to Hacker News comments.
Specs on the new Canon EOS C300
A while back I tried learning Objective-C on Linux. My end goal was to do iOS development, but I wanted to try it out before I spent the money on a Mac. Maybe I'd hate Obj-C and know immediately it wasn't for me...

Using the Objective-C language on Debian was as easy as doing "apt-get install gobjc". But, as you stated, most of the utility comes from Cocoa.

Even though it's technically possible to use Objective-C without Cocoa, in practice it's almost not worth it. It's not like C++ where you can chose between Qt and Gtk+ or some other big library. There's Cocoa/Foundation or there's nothing. It would be hard to find learning material that didn't use Cocoa, even if you wanted to try it.

There are a few alternative Cocoa implementations that run on Linux and even Windows.

Cocotron lets you create Windows apps using Cocoa, but it's a cross-compiler that runs in XCode. Didn't fit my needs, so I didn't try it.

libNuFound was pretty good for the Foundation part of Cocoa, but it took a bit of work to make it work. Objective-C with only Foundation has a lot more functionality than plain Objective-C, but still no where near the usefulness of Cocoa.

The most complete and most popular option is GNUStep. It implements Foundation and a good chunk of Cocoa. They've done good work, but the documentation was lacking, and I never knew whether code I saw on the web and in Cocoa tutorials would work under GNUStep, without trying it. Apple's developer documentation is really good, and I used it as much as possible, but it was pretty common to run into stuff that didn't work under GNUStep. My other big complaint was that it's a really heavy weight "library." I don't know if it's their fault, but I vaguely remember having to install a bunch of seemingly unrelated dependencies just to get their *-dev packages installed on Debian.

Perhaps not the best comparison, but for me, using GNUStep libraries to develop Cocoa always felt like using Wine to run Windows programs.

I had a few other links about setting everything up, but these two were helpful:

http://blog.vucica.net/2010/12/getting-objective-c-2-0-to-wo...

http://orangejuiceliberationfront.com/playing-with-objective...

FWIW, I did eventually buy a Mac, and can say Objective-C and Cocoa on iMac is much easier on OSX than Debian.
Feedback: The "Treehouse Profile URL" field on the sign up page is very unclear. I assumed you wanted a URL of my site to put in my profile, when it looks like you want a username to put in the url to my profile.

Also, when I select PayPal as a payment method, you should hide the credit card fields. It's confusing to click the button when I have a required field showing that doesn't need to be filled out.
This is why I don't get the fuss everyone is making about Siri in relation to being an "{x}-killer". While the tech is impressive, it's going to be reproduced very easily- Google could dedicate a tiny amount of their resources to it and have a Siri competitor on Android within a couple of months.
Thanks for the suggestion. Good news, it's already on the product roadmap1 :)
The $PATH problem has actually been fixed in Debian unstable; they caved on FHS-compliance and let Rubygems place things in the right bin/ dir. Not sure if other issues persist, but finally some progress has been made.
The UX is great, I agree, but I can't stand how you put emphasis on every other word in the web design intro video.

It reminded me of an Ira Glass segment where he talked about his early radio career (See http://transom.org/?p=6978 and scroll down to "1. Learning Curve"). He also made this mistake, to the detriment of the story.

Please fix this when you have time. Maybe consider hiring a professional actor to read the script in a more natural way.
Where did the HMAC come from? I thought we were discussing plain MD5.

And yes, a huge secret salt will help. Of course, if your source code is ever visible to anyone you'll have to lock all accounts.
Official Release of Google+ Pages
Maybe I'm just weird, but all of this drama around a database does not make much sense to me.

To me, it is simple. Do your research:

* Go to https://jira.mongodb.org/ and look at the issues

* Read the documentation at http://www.mongodb.org/display/DOCS/Home

More than likely, if you have to ask the question "should I use a NoSQL db" then the answer is no - just stick with SQL. MongoDB (and most other NoSQL dbs) is a specialized tool that is fit for specific use cases only.

There is no need for all of this ridiculous hyperventilating drama.

I have heard it said that the marketing department at 10gen was not good at "managing expectations". If you are working with a database, I would hope that you do not allow your expectations to be set by the marketing department. If you don't do your due diligence then you deserve to be bitten.

As to the original "Don't Use MongoDB" post. Whether it was a hoax or not was completely besides the point. Every single section in there was completely unsupported by any evidence other than the authors experience.

If you are going to talk about data loss then link to a bug report or a Google query pointing to a bug report or something. Anecdotes are not data.
Although this story is 90% fabulous news, the most disappointing part is how Google is only using Schema.org when they need to scratch their own itch.

In June, I pushed hard for Google to launch a schema to focus on job postings - http://blog.linkup.com/2011/06/02/linkup-recommends-new-job-.... It was completely ignored on every venue where I mentioned it. Now they make their schema - http://schema.org/JobPosting - public 3 days before announcing this initiative.

Google postponing progress on Schema.org until it best suits ensures that I won't take any of those schemas seriously ever again.