skysight-inc/HackerNews huggingface dataset:
rdiff-bachup will give you copies of the changed files (so 1.2TiB for the database file mentioned in the article) every time you run a backup for each old version you keep. It will not transfer that much data over the network (since it uses the rsync algorithm), but it stores that much on disk.

On the other hand, if you use a filesystem with copy-on-write snapshots and in-place modification of the changed files, you will only use as much disk space as there are changed blocks in the file for each version you keep. (Of course you have no additional redundancy if you keep n older version, as each bit of data is only stored once physically. But you only ever store one version of an unchanged file in the rdiff-backup scenario either, so you should alternate between different backup disks anyway.)
Safaricom is leading the surge in Kenyan communication services
No multi-tasking doesn't mean it can't be an OS, just not a decent OS. DOS was not a multi-tasking OS. Prior to ITS, the MIT AI Lab (which RMS was a member of) were opposed to multi-tasking OSs. Lack of that feature doesn't make it not an OS.
Show HN: A color picker I made without fiddly sliders
Your documentation seems limited to basic functions, with nothing explaining really what this does, or why I would need it. I've just spent like 20 minutes looking all over it and I have no idea what to do with it.
"I've shipped 2m downloads since starting"

You're ahead of almost every new CS graduate they'll see in that regard. I mean, CS fundamentals do matter and many companies will really need to see them. But no you're not the wrong type for a developer role, you can ship stuff.
Anyone going to this should take note: The Bay Bridge (between Oakland and SF) will be closed starting Wed night at 8pm and will remain closed the entire long weekend. This is mentioned in the linked post.

Ordinarily, the trip over the bay from Berkeley to SF is not that big of a deal. But with that bridge closed, any plans to just "pop on over to The City" would not be advised.
And to look at commerce in the other direction, how is access to things you need for home/work? Say you need a new development laptop, are you going to amazon, local retain, or something else?

More on the consumables side, how's the coffee?
I measure less than that:

dd if=/dev/urandom bs=1024 count=64 | base64 | gzip | wc -c
64+0 records in
64+0 records out
65536 bytes (66 kB) copied, 0.0127386 s, 5.1 MB/s
67302

This particular run comes out to ~2.7% overhead, and in fact it's very repeatable. The half dozen runs I did were within 20 bytes of each other.
Agreed. I didn't suggest otherwise. I'm just recounting a similar story about premium rate numbers in the UK.
Perhaps an expert in Groove?

http://grv.microsoft.com/
I think the standard solution for the mailing lists is the "subscription" email pays the hashcash, but has an automated way to whitelist the email upon receipt.
Witopia works for me and they have several local pops in various countries around the world.
They must be getting ready to release the next model of Nexus phone.
I also don't get the premise; e.g. while low level details have changed (in fact, for the worse and then for the better, e.g. memory management), the basic principles of software engineering I learned in the late '70s are just as valid. At the high level of modularity is a win. Non-local action, be it gotos then, or, say, call-backs today, is powerful but dangerous and confusing. Collect requirements before doing design. Do things from the top down and the bottom up as they make sense. Etc.
MPEG-LA ($6.5mm/yr max)

I presume you're getting that from here:

http://www.mpegla.com/main/programs/avc/Documents/AVC_TermsS...

But that specifically states that the maximum is per operating system.

Well, what if it turns out that's entirely too vague? What if MPEG-LA is telling Google that each ROM for each Android is a different operating system?

I don't know. Do you?
Flexible electronics allow us to cover robots and humans with stretchy sensors
Don't forget the ever reliable counter-script to use against them:

http://egbg.home.xs4all.nl/counterscript.html

FWIW I've set up some disposable number like this guy via Flextel.

If ever I've been looking for a new contract I put a disposable number on my CV. When I get a contract, i disconnect and they cannot call again
Surely the aspiration is for bitcoins to become a widely accepted alternative currency. If/when that happens, you won't have to "cash out" - you just finance your lifestyle with bitcoins.
Backstory:

I woke up this morning and saw the color pickers in http://www.uibox.in/ and started thinking about whether I could make a color picker that didn't require me to pick a color in multiple steps.

With a little bit of fiddling I came up with this. I'm sure someone with a graphic design degree will tell me some Swiss person much smarter than me invented this 50 years ago, but that's life. Instead of picking a hue and then picking a saturation/brightness you just pick the color you want.

This is not the color picker for everyone:

* It's not very fine-grained

* There's no pure white or pure black (you shouldn't need/use these anyway)

* Actually all of the really dark/really light/really unsaturated parts of the spectrum are removed because they all sort of looked the same.

* It forgets your palette when you reload the page

But it's fast, doesn't require you to grab any 4 pixel wide sliders, and it prevents you from thinking too hard. Might be useful for someone else, so I thought I'd post it.

I think it'd be a good basis for a color-picker for end users: it covers most of the useful colors without overwhelming people with complexity.
Why Big, Intense Wildfires Are the New Normal
Terminal (bash shell) and git are comparatively easy to learn. You can learn very basic functionality with those in a weekend... so no real downside to picking those up -- http://gitimmersion.com is good for git. CS fundamentals like algorithms and data structures are obviously another can of worms. Luckily, while knowing them will give you a far higher ceiling as a developer, they are not always required to contribute to a project in an employable way (depending on the company). So you could definitely get hired as an intern and then dedicate yourself to going back and learning the CS fundamentals over time. I'd say you would want to make it one of your primary personal goals over the first couple of years if you want to really get the most out of your potential in the industry. But it's not a barrier to entry.
Unexpected Origin of an Avian Virus
No, I want a real editor inside my browser.
I agree our ability to scale support is a problem. Very sorry it didn't work out for you. Unfortunately on our side it's a big challenge to provide detailed troubleshooting with individual users, especially if they are not paying. We took Patio11's advise and offer a money back guarantee for paid users, but we also do try to investigate and support them much better.

Since the product is zero knowledge, we can't just look at the server to see what a problem might be. Trobleshooting involves analyzing logs from the end point devices, find out all the relationships involved in the sync (one machine is Mac using case preserving insensitive unicode form D, the next is Windows with relevant regional settings, another is a Linux NFS server, a FAT32 volume that doesn't preserve certain characteristics and has a limitations for MAXPATH, etc.)

It often take a couple of hours of analysis to understand what a specific situation's problem might be, and the median case is that it comes down application level things that SpiderOak can't do much about other than explain to people why syncing (for example) Quickbooks files between two open and running instances of Quickbooks at the same time is not going have the effect they desire. Or any number of combinations like that. People put very weird stuff in filesystems.

In any case, sorry it didn't work for you. We did recently finally resolve a couple of long standing edge cases in the Unicode sync logic in the 5.0.3 release. Let me know if you'd like to give it another try. In any case, thanks for your interest in SpiderOak.
linked in got really weird when it started suggesting to people to endorse people.
most people don't use status and most of those who do abuse them (always away or busy or invisible etc) so I've always found them unreliable and useless. If you need to contact someone, just send the message, he'll answer when he can.
You're forgetting convection.
Might want to see whether this varies with the number of images (instead of 1) and the size (instead of 25kb).
There was a post on here yesterday about setting up your own ad hoc system https://www.tinfoilsecurity.com/blog/dont-get-pwned-on-publi...

I've also put together a listing of over 90 providers http://www.proxy.ie/blog/ultimate-vpn-list/ you should find one there ! Personally I've used Overplay, HideMyAss & IPVanish all to great success. HideMyAss have an offer until Sunday for $60 for a year's access which is quite good.
You are correct. I'm pretty deeply involved with telco fraud and it's countermeasures. This is really tip of the iceberg as to what goes on.

The latest scams involve making your iPhone show missed calls even though your phone didnt ring by sending it a really short call attempt. Guess what the caller ID of the missed call is? Premium rate number. The amount of people who ring back these calls is incredible.

When you call the line you hear a long dial tone. You think its dialling the number but its already been answered and is charging you per minute...

Again, I'm not making any representations that these things are ethical, but they absolutely go on today, and these are the only kinds of scams I feel comfortable sharing - the reality is a lot scarier.
I was joking with a friend and endorsed him for "Knife Skills" -- which is one of the presets you can choose.

(It's intended for chefs, not game developers.)
Surely the design is the easy bit? Boarding passes operate in a highly regulated and legacy-technology _and_ heterogenous environment (technologically, culturally, legally, and in terms of corporations involved). Overcoming all those challenges to gain agreement is the hard bit.
I'm endorsed for "Social Justice"
You appear to be suffering from a misapprehension.

Psychology: http://en.wikipedia.org/wiki/Psychology

Psychiatry: http://en.wikipedia.org/wiki/Psychiatry

Note the not to be confused with introduction on Wikipedia.

They are quite different, and while I agree that DSM-5 was a disgrace, that was somewhat inevitable given the commercial pressures involved.

Its worth noting that I agree with your major point, but it applies to psychiatry (more specifically, the DSM) rather than to psychology.
Thanks, it's the first time one of my posts has made the front page of HN and it kind of took me by surprise.

The cache should be able to deal with it now, but I appreciate the mirror. :-)
the problem is discrimination lawsuits.

an old person contests a no-hire decision with "I wasn't hired because I was old"

option A: Hiring manager says "well I just thought you were a jerk"

option B: An objective and universally applied test scores the applicant as being 95% jerk, which is above the 60% cutoff that the company uses globally

which would you rather defend yourself with?
Push-button endorsement systems are meaningless without a corresponding downvote mechanism. There have to be both sides of the coin, or else you get nothing but meaningless and empty results.

Of course, if you had more of a "karma" style system, you'd have to implement a way to mitigate abuses of the downvote mechanism. But I feel like that's an easier task than trying to derive meaning from endorsements that cost the endorser nothing, and hence mean nothing.

If the stakes aren't real, the results aren't real.
@Doug: have you tried our (free) product: http://ncryptedcloud.com? We currently work with Dropbox and will eventually with Google Drive & SkyDrive. Our product works with Windows, Mac OSX, iOS & Android. We also have the Cloud Web Portal which allows you to see your secure file via web. Keys are generated client-side. We use open standard. We don't have access to your data AND you can securely share your files with other people (nCryptedCloud user or not!).

I've written about the problem of cloud security and cloud privacy here: http://vuongnguyen.com/personal-business-cloud-security.html.

We're just a startup who was trying to solve our own problem with the cloud security & privacy. Would love to hear from you.

-V.
I joined Linked In 3 months ago. Personally I did it as I was starting a new company and wanted to "discover" this magical sales and marketing tool I've been disappointed by the noise, and general low level of barrier to entry on most things. The fact that endorsements are so easy, or that making a good profile, filled with content look attractive decreases the value of it as a tool. I dislike Linked In, I wish I hadn't joined it.
I was trying to figure out the economics... 10p - Is that roughly 15 cents? I assume that's a per minute charge. So he gets 60 minutes/hour * 15 cents/minute * 1 dollar/100 cents = 9 dollars per hour talking on the phone?

It seems a correct cost - probably a little more that the fellow on the other end of the line, but he's the one with the money. It also seems very cost-ineffective unless he's a minimum wage employee or very lonely.
This is disturbing on many levels to me. Someone who is "maddened" when a guilty criminal goes free demonstrates clear ignorance of the justice system as well as a tendency to be instigated by demagogues.

On the other hand, this test as a whole seems to be selecting for someone who is pliant and believes whatever he is told to believe, the sort of person who actually believes the HR indoctrination and the like. In this regard, I think the question is very revealing - someone who would answer "Disagree" to this question reveals that he understands that our judicial system is not perfect and reacts with skepticism whenever he is told by the media not to value human rights. Such a person would be more likely to stand up for himself in the workplace when his rights or the rights of others are violated.

It's actually rather clever if you're looking at it through the eyes of an asshole.

By the way, your username cracks me up.
Google patents ‘Scroogling’
Instapaper Redesign
"The Postal Service is unable to assure that a Business Reply Mail piece will only be used in a manner and for the purpose intended by the distributor; this is a risk assumed by the distributor. If the piece receives postal handling, the legal rate of postage and appropriate fee should be collected for the service given the piece upon delivery to the distributor. The fact that a returned BRM envelope may be empty or a BRM card may not have been completed has no bearing on the distributor's obligation to pay postage and fees on all returned BRM pieces."

So if you just send back the empty envelope, it sounds like it will cost the company postage, even if it's less than a brick.
They could call themselves, cognitive scientists, or behavioural economists, or something!

\snark.
Sell it to them for a million dollars then.
This is pretty impressive, i wonder what the update interval and source is.

http://www.mapbox.com/labs/forecast/temperature/
I really like the interface, even the zoom buttons could be removed or hidden as you can scrool-zoom.

Make the temperature in Celsius please!

EDIT: There seem to be a problem with the algorithms, the largest zoom displays colder temperatures( look at the temperature map ).

Largest zoom,

http://i.imgur.com/GVt3iSy.jpg

Normal zoom, picture was resized by me

http://i.imgur.com/t1GgrOM.jpg
Yes, we once had a more or less finished base product. But at that time my co-founder had to start doing sales so he shited his pants and suddenly invented a whole new addition that would surely sell.

I worked my ass off, and in the end when it was released, it turned out more than 90% of people only use the base product.

I think I'm still mentally recovering from that one and it it was the initiator for the spoiled relationship with the co-founder.

It takes courage to contact people, ask for a meeting and tell them what your plans are.

But it beats spending months working on something no one wants.

And every time you do it, it takes less courage.
Who says guys can't multitask? Also, autocorrect needs to die a slow, agonising death. Sorry, again with the violence.
Samsung beats Apple to release of smart watch
The HN title is very misrepresentative. The actual stat is 55% of users WHO HAVE GOOGLE MAPS INSTALLED use it weekly.
Well the classic example of garbage data is all recruiters getting endorsed for the two dozen technologies they are headhunting for.
I think the new 'Hive' feature makes things a whole lot easier. Just drag-and-drop (as you would with Dropbox) :-)
I'm still trying to figure out something that cannot be linked to the real world
Why the heck do you still work there, anyways?
It's quite common. I've worked at several companies, including BSkyB where the developer team is supported by a devops team - the devops write Vagrant scripts which bootstrap a VM that closely mimics the production environment and include all the necessary services ready to run such as nginx and php or ruby, meanwhile the devs all work on Macs and have enough command-line-fu to do development work, but certainly not enough to provision a Linux virtual machine and set up said services.
Power is fine 95% of the time, but yes outages happen though infrequently for long. We work on laptops so it isn't a huge issue, but you do learn to plan around it. (aka, keep said laptop charged)
I agree with the points he makes and have had a similar experience. I have worked desk jobs with minimal movement for the last 10 years and getting into resistance training plus cardio has made a huge difference in the amount of energy I have, mood, posture, etc.

One statement I take issue with is this line "I put on 40 pounds of muscle one year alone...". This is essentially impossible barring a malfunctioning thyroid. I don't doubt that he put on 40 pounds of weight in a year but I can guarantee it wasn't all muscle.
If you are 17-20 and finishing up puberty, using anabolic steroids, working out incredibly hard 5-6 days per week, and eating 4000+ calories per day every day _maybe_ you could put on 30 pounds of muscle in a year. If you are in your late 20s early 30s as he was, not using steroids (I assume), and working out hard your max muscle gain in a year might be around 20lbs. For a normal 30 year old working out 3x a week it's closer to 12-15lbs/year after newbie-gains have ended.
I say this not to discourage but rather to give people realistic expectations, I believe the most common reason people fail at exercise is they are overly ambitious and burn out quickly when they don't look like Hulk overnight.

If someone was looking for a good starting point for fitness I recommend scooby1961 on youtube, he has been around a long time and has a ton of videos on fitness and nutrition aimed at newbies, and takes the perspective of an engineer looking at the body as a machine.

As someone who has been into this for a while my advice would be:

1. Start small and ramp up, if you do nothing currently start with walking 20 minutes per day.

2. Do not spend a bunch of money on fancy equipment, like all hobbies until you get deeper into the game you won't even know what you should get.

3. Avoid injury, esp your lower back and shoulders. The best way to do this is perfect form. Always have perfect form, cheating with bad form to get one extra rep is only cheating yourself, the goal is to work the muscle to failure, not hit some number.

4. If you want to do a home gym you can work 95% of your muscle groups with dumbbells, a barbell, and a pullup bar. The only thing you cannot work out well with these is your quads. For that you need a leg press machine or a squat cage (ie: a gym).

5. Most suppliments are unproven snake oil that waste your money at best, and at worst destroy your kidneys/liver or give you heavy metal poisoning. The only supplements I consider proven effective with minimal side-effects are caffeine (pre-workout) and creatine. I will not recommend any brands but look for ones that are quality tested by independent labs (like USP).

6. Cardio with resistance (weights) is best, but if you only have time for one make it cardio. This is more important for your long term health.

7. Sticking to a routine is not about will-power, it's about habits. The first time you work out with weights it's intimidating as hell and you feel like a bumbling idiot, you do that 2 or 3 times a week for a few weeks and it feels like a chore, you do it for a year and it happens on auto pilot, you don't even think about it.
Just as the scientists and tinkerers of yester-year once appropriated the term Engineer from the well respected steam engine operators, today's programmers have grabbed the still respectable term and ran off with it.
I think the showbot suggestion below is great - and it can be implemented with no extra effort.

So how about a throwaway account, so karma issues are put aside, that posts each Friday evening a thread that anyone can attach their maker projects to - a "MadeByHN" thread?
Thanks! Appreciate the link. I have looked at some third party add-ons, but don't want to use two cloud products when one will do.

I will take a look at ncryptedcloud.com though in case it's useful for people I advise. :-)
Junkmail is not a public service. Or at least, not to everybody. If it was solely good then I highly doubt it would be called junkmail, my suspicion is that it is called junkmail because a large chunk of it ends up unread in landfills.

Where I live we have simple stickers that allow you to pick yes / no for receiving unaddressed mail and free periodicals. We simply slapped a no/no sticker on the mailbox and forgot about the junk mail problem but not every country has a system like that.
Watch a Jaw-Dropping Visualization of Every Protest Since 1979
7 & 8 is fixed and is online.
Most of the top comments are restating a common belief among technical workers: HR managers (or all of HR) is worthless, especially when they try to be more than paper-pushers. Lumping all HR people into a single category is foolish and unfair.

I admit that most HR managers are just paper pushers who are simply not knowledgeable enough to make hiring decisions. And shame on the manager who allowed such a useless position and department to persist. If these people are not qualified to help make hiring decisions, why would you even trust them to find and filter candidates?

I've worked places where the HR personnel understand the business, know the team, and were aware of heaps of research on hiring and keeping people happy. Their feedback on hiring processes was extremely valuable, and they made contributions to the culture and environment. They were the first to attack "corporate bullshit" as it sprung up. In short, they knew how to build and foster a productive, creative environment better than anyone, and we listened. That, in my opinion, is what HR should do.
Bitrate and resolution of a video encoding are two independent variables. I can encode 4K video at 50kbs or a 480p stream at 10mbs. That 4K stream is going to look like crap, but I can do it.

They may not bump up the bitrate exactly proportionately to the increase in resolution, so the effect may not be as pronounced as you think.
I remember I once setup a js script which ran every 5 seconds and clicked the 'endorse-all' button. In this way within 30-45 minutes I endorsed many of my friends of skills which they don't even know.

Was good return for me as many returned back favor thinking I spent time for them.
Emacs as default init, shell, window manager and "desktop" environment. Emacs has a reimplementation of almost all basic shell commands [1][2], in eshell. You get a unix style shell that works in windows too.

[1] http://www.gnu.org/software/emacs/manual/html_mono/eshell.ht...

[2] http://www.masteringemacs.org/articles/2010/12/13/complete-g...
Nintendo 2DS - Introduction