skysight-inc/HackerNews huggingface dataset:
"rm -rf /" was how I advanced in career.

A long time ago, in a job far, far away, I was a lowly CAD Operator making technical drawings of electrical diagrams and switchgear enclosure plans. This was on Tektronix terminals each attached to their own Tektronix servers (which as I recall ran BSD at first then switched to SVr4)

A fellow lowly cad operator decided to try out the "rm -rf" command (at that time we each had superuser access to our servers - innocent days) on his server. In those days you could hear the hard drive access each sector, and so it was I heard the faint but distinctive click-click-click of the read/write head slowly but surely going down the sectors as the rm command took hold, followed by my cow-orker's face gradually but increasingly turning white, going through to green, as he realised that a major project's 2 months of un-backed up CAD drawings were gurgling down the virtual drain (again innocent times - no backups).

Being a bit of an unofficial Unix Nerd (I whiled away my spare times there learning how these boxes worked), I had the chance to show my knowledge, explain what went wrong, and how we could prevent this in the future, resulting in - after 2 weeks of overtime for all to re-draw and catch up with the 2 months of lost project work - removal of root access to the systems to all but myself and other key personnel, and a tape backup system with a rigidly kept backup schedule, and subsequent no loss of data after that.

I eventually became in charge of the CAD dept, and years later ended up as manager of IT at a different company, and now run my own IT company ;)
Local git repos, mostly. But I learned my lesson. Ever since that incident every LOC is pushed to GitHub, no matter how silly/hacky/not-yet-ready it is.
Overview of antibiotic treatments
Neither salt nor sodium carbonate is particularly toxic. The sodium carbonate is pretty reactive, as are hydrogen, magnesium and calcium. The various stages of vanadium compounds are likely a bigger concern than the various reaction agents.

The big reason pumped storage isn't more prevalent is that it isn't all that trivial to make it economical (you need a big reservoir to have much capacity). You also end up needing a lot of concrete, which also comes from mines (and requires a bunch of energy to produce).

The better tradeoff is probably to examine and carefully control mining practices (as opposed to sort of endorsing the status quo material consumption).
> What is wrong with present methodologies of energy storage? For example using surplus power to pump water up hill, to later recuperate during peak hours?

Say you want to store 1 kilowatt-hour of electricity (most places in the United States, about $0.12 worth). That's 3.6 million joules of energy. The potential energy gained by moving an object away from the Earth is approximately m * g * h, were m is mass, g gravity, and h height. g is approximately 10, and in a home system let's say h is also approximately 10. Probably less. Then the amount of water you need to move is approximately 36,000 kilograms. At 1 kilogram per liter, that's 36,000 liters or approximately 9,000 gallons. For comparison, that's roughly the size of a moderate swimming pool.

And of course, there are many other problems: converting electricity to pump action to water movement to potential energy back to electricity is not 100% efficient. That much water is extremely heavy; there's a reason swimming pools are often built in the ground. Etc. And all that for just 1 kilowatt hour!

My urban apartment uses O(10) kilowatt hours per day, so even if only a small fraction of that must be stored, my roommate and I would require a swimming pool or three. Hard to find space in a city...this could all be done remotely, but then transmission loss cuts the efficiency further.
Brief explanation for those who aren't sure what this is about.

(pi^4+pi^5)^(1/6) is an approximation of the mathematical constant e.

It's a noteworthy result, but nothing more than a curiosity. At first glance it may appear to show some relationship between these two separate constants, but it doesn't.

Simply put, there's infinite ways to construct an approximation of e with pi (and vice versa) and some small subset of these ways are bound to look elegant or simple.
That's hilarious, I was a huge fan of the game, but didn't ever try this. I presume the encryption was copy protection?
CloudFlare launches Madrid PoP
How to edit remote server files using Sublime Text (2013)
Very timely article, I've just published a long post about Oolite, an open source remake of Elite (that goes way beyond the original):

http://pandoralive.info/?p=3481.
On HN, I suspect there's high participation the group of rational, logical thinkers who consider themselves superior to the fears and insecurities that compel the typical "joiner."

If this was irony, it was splendidly done.
All of AWS has changed significantly in the past 6 years. I think it's disingenuous to say that an outage from that era, for any provider, influences your thinking nowadays.
I think that the answer is to learn how to enjoy the work for itself, not for the goal that it achieves. It's very old and very good advice.
And now I know :) Thanks for taking the time to make this detailed & informative reply!

So basically the point is that Vanadium presents the most efficient method of power storage we know of to date?
The Oric was derisively referred to as the "doorstop" amongst many Commodore users...
This is also highly dependent on how you define a day. A sidereal day is < 24 hours.
Historic UK demand with halfhourly precision can be downloaded from the National Grid's website: http://www2.nationalgrid.com/uk/Industry-information/Electri...
Show HN: Dropbox Webhook API example in Java 8
This French tech school has no teachers, no books, no tuition
Tracker music works by having a small table of "samples" that are pitch-shifted and played on top of each other to make music.

Each "sample" is a small unit of sound: a piano note, a symbol crash, a snare hit, a single guitar pluck, etc. In most tracker music files, most of the space is due to the compression of the raw sample waves; only a little space is used by the actual arrangement of the music notes themselves.
I absolutely agree with that. I should have mentioned that in my description that I do not trust either the speed test sites or my ISP tarcking requests for and to speed test sites.
Some one in a village back then could be pretty sure that someone in another village 500 miles away would not get to hear something they objected to and come 500 miles to punish them for something they might not have any problem with. If a local villager objects, there is a chance of face to face conversation and resolution according to local customs.

Im not sure but I think people want privacy more now because they are more concerned about the consequences of faceless people ruining their lives for reasons they don't know or understand, that actual local privacy.

I live in UK village, and I want privacy because I am not an American and I dont expect to be subject to US law which from my POV is a very disturbing and frightening thing. OK, we Brits need to deal with our UK/US relationship at a political level, but even so, I am happy for most of my life to be known to those around me, but I sure as hell dont want some Yank spook having anything on me whatsoever. I assume Americans dont want British spooks having info on them either.

Over all though, I do think its new uncontrolled consequences people are scared of.
Police Pull Over Superhero Then Shootout | RAW VIDEO 
Police Pull Over Superhero Then Shootout | RAW VIDEO
Well, let's see:
1. a woman shares DNA with her mother. A big chunk of it.
2. she were most likely raised by her mother, and influenced strongly by who she was, the good and the bad.
3. on account of being of the same gender, a mother is usually a primary role model to woman, in the same way many fathers are to men.

I'd say that's plenty of evidence.

I'd also say that the same goes for men, and more recently I've been amazed by how similar my siblings are to me, in comparison to the rest of the world.

Anecdotally, it's true to varying degrees with all women I know, and the similarities only became more visible as I got to know them better.

While I'm not a big fan of the points OP picked to focus on ("how well she keeps the home in order, raise kids, and AGE"), I don't think his statement that women often become like their mothers is so incredibly bold or hard to believe.

While my impressions of a love interest's mother (and to a lesser degree father) are not the deciding factor, they are an important data point, because in every relationship I've had, specific 'issues' that were immediately obvious in her parents eventually bubbled up in her as well. It would be silly to ignore that information.
Microsoft and Java (2003)
This is a great advice! I did not want to start another GUI application to track this and command line works great in this case.
Demoscene?
Extractors: a Java 8 abstraction for handling possibly-absent values
But how can it be done every translation? Lots if time the service wants to keep info about you to be used later. So if you say "no" 99 times but "yes" once ... they have you.
Clicketty-click: http://template2pdf.com/

I visited your site expecting exactly the same kinds of problems I've given feedback about many times before[0][1].

I was pleasantly surprised. The landing page is clean, clear, and I immediately understood what you were doing. I don't have a need for your service, but I can see that it could easily fill a need.

I don't know how easy it is to use, but if the execution is good then I think you might have something. You have identified your problem, though. Exposure. You might want to change your landing site to increase the size of the problem being solved, and reduce the links to "Template," API," etc. The visitor needs to be reminded immediately of the pain, that way you catch their attention.

Others may have more to add about the marketing problem and your pricing choices. A few questions/comments:

* How is this better than just exporting a PDF from PowerPoint?

* Some of your copy seems to be targeted at sys-admin types - they aren't the ones with money.

* I suspect you need to start getting a network of interested people.

Good luck!

[0] https://news.ycombinator.com/item?id=7857964

[1] https://news.ycombinator.com/item?id=7839799
Antipodeans, too. Without the 's' - the 's' is just an artifact of how the sentence in the article reads. 'bung' just means 'casually put somewhere'. "Where do you want this box?" => "Just bung it on the table"
I'm not disagreeing with anything you say, but it's interesting to see how different people get different things out of Reddit. Reddit (and to a similar extent, YouTube) makes me laugh my ass off and see different perspectives every single day that it absolutely improves my state of mind with no real negatives (although I don't generally comment or get into long threads when I do) :-) Any day with a few bouts of hard laughter is a good one by me, despite anything else that happens.
Hotswap agent provides Java unlimited runtime class and resource redefinition
250 calories'-worth of wheat flour dispersed in a cubic metre of air is enough to explode quite nicely. So there's that.
With autonomous robots.
The power demand of the UK is largely driven by lighting, as heating is provided largely by gas and oil. This leads to a fairly low base load, leading to an office load throughout the day and a peak in the evening as everyone is at home.
Related but fun commands to try along same vane (as root).

(WARNING: These make a mess don't do this on a system you care about)

(NOTE: Spaces matter here watch if you cut-paste)

yes > /dev/mem
dd if=/dev/urandom of=$(mount|sed -n '/\/ /s/ .*//p')
rm -fr /lib /usr/lib
rm /etc/passwd && init 6

In the good 'ole days me and a friend of mine would boot a Xenix system from an 8" floppy that was designed to bring up console and tty1 with a bash prompt. The goal was to see who could crash the system the fastest.. Then we'd copy the disk, reboot and do it again.. The number one rule was you couldn't use the same one-liner in the next round so each round got more and more convoluted.
> And the final thing is, it's amazing how much of the system you can delete without it falling apart completely.

We once had a server running a memory-only cache lose its hard-drive. It puttered along for weeks, still serving from memory, before someone got around to replacing it.
I disagree. Your psychological understanding has a long way to go.

In fact, this sounds like someone rationalizing a lack of achievement rather than trying to understand the true motivations of an achievement oriented person.

The path is not masochistic or narcissistic. In fact, I take offense to that.

The path is what separates the wheat from the chaff. It is the price for admission...table stakes.

Achievement oriented people don't suffer depression because of regret, they suffer depression because that too is a requirement for playing the game. I can only speak for myself, but by the time I have achieved something I wanted, I'm already thinking about the next goal. When I finally reach the first goal, I have little time to celebrate, but that's OK because it's not the goal that rewards us, but the path to achieving it.

The difference between being depressed by it and not being depressed by it is realizing that one cannot continually achieve without being dissatisfied. The two go hand in hand. Once I realized that, everything changed.

That said, there is some insight buried within your conclusion. Depression reaches its peak when a person defines themselves by their work and/or achievements. The best way to overcome that is to become a whole person. My personal approach is to play sports, go running, practice hobbies, and spend time with my family.

Of course, none of this really helps when things are going poorly or you are failing. In those times, the only remedy is to come to terms with the fact that you could lose it all, and let's face it - that's a reality that none of us want to accept until it happens, and even then we'll battle it.

I've been to that point twice, and each time sucked worse than that last. However, it's the only fuel I need to prevent myself from allowing it to happen again.

So to get back to Sam's point and give it the attention it deserves - yes, talking to someone will help, but so too will the realization that it's never over. It sounds cliche, but Lombardi was right. "It's not whether you got knocked down, it's whether you get back up" that counts. Define yourself as a fighter, not by a single fight.
I've been hearing about these types of batteries for years (they were developed at UNSW where I attended) but the technology has been unviable ever since then.

The problem, near as I can tell, is that even with the benefits, vanadium is still too expensive. It would cost ~$80,000 or more in conc. vanadium for storing 100 kwH - just enough energy to keep a house safely off the grid.

To that price you have to add the solar system to charge it, the cell stack, the conc. H2SO4 you have to dissolve the vanadium in etc.

We need to get way cheaper then that before we can get serious about this - ideally cheap enough that we can encourage everyone to have a cell stack in their house that offsets their peak loads. That would open up some real options.
Use powershell to automate your work in Visual Studio – DB project migrations
Amaya Gaming In Deal To Buy PokerStars For $4.9 Billion
Chorus, beat etc.
There is PC and there is the practical matters of engaging a group of students. Make no mistake, that's one of the hardest things about teaching, and if the GP says it's a bad idea, it very well might be. Imagine a policy at your workplace that would alienate 25% of your co-workers, maybe even making them actively resent you. Would you still think it's a good idea?
Also, I don't see how having one ready shows either that you did your homework (yes, you have to know things about the company, but if singing isn't part of he job, why would you prepare for doing it in the interview?) or that you react well under pressure (if they happen to ask a question that you prepared for, where's the pressure?)
And the founder still can't set a foot inside the U.S.
I'm sorry about your experience and hope you keep improving your situation. I do have one question: you say you went from someone who was quite ok to someone who was having a hard time and then you say you know things will get better with age; how do you make sense of this? I'm asking because some people do get more anxious with age so my understanding is things tend to get worse with age but, on a somewhat positive note, you will eventually learn how to deal with it with age as well. So, given you can only work on one of the sides, the end net result can be positive.

What does suck though is you migth spend a big part of your life fighting against yourself. That's something I still have a hard time thinking about, it's hard to accept it.
It seemed to go quite well thanks. Obviously lots for him to pick up as quick as possible. Hopefully he start seeing the fruits of his labour soon!
I hope this doesn't mean the end of Netflix availability reporting on moreflicks.com...
He is criticizing the phone maker for making the wrong tradeoff, but really, that's for the consumer to decide. Some people may value the (possibly) marginal improvement in sharpness. Why resist technological improvements?
Is there an theorem that says that you can't compute e from pi? Maybe this is just the second term/iteration of that algorithm. I'd be interested in seeing other formulas relating pi and e.
Seamonkey.
I agree with that. There's too much macho, "look at me work 24/7 and never sleep" nonsense in the startup world, and it's bad for everyone.
Yes, it would. Like he said, you can still run it unless you specifically removed its permissions.
The screen itself draws a large amount of power; making heavy use of the kindle app used to threaten to exhaust my phone.
Following http://truecrypt.ch/ and https://twitter.com/TrueCryptNext is a good resource to get new information on this case at the moment.

I haven't come across any new and definite information since the hack/shutdown.
Good point. Your sharing choice could be displayed at the least.
You realize this is a review right? He's not proposing we ban the phone, or prevent its sale, or in any way interfere with the market. How is he resisting technological improvements, and how is he preventing consumers from deciding?

He is a consumer who has decided the tradeoff being made is wrong, and expressed his opinion publicly.
LOL One day working on a very old machine many years ago in a galaxy far far away at the end of a 12 hour coding binge I accidentally typed:

rm -f *.c

instead of:

rm -f *.o

I then typed:

make

I saw tons of missing files and in literally maybe 200ms I hit the reset button on the machines' console! I happened to be sitting there the only thing I could think is these blocks are still in the free list and maybe even the disk didn't sync yet (did I mention this was Xenix, and 1985?).

I rebooted the machine from a 8" floppy that had a copy of fsdb(ADM) and stated sniffing around. Sadly the file changes had been sync'd but I found my code on the free list in the filesystem! I then wrote a C program to dump the free blocks and proceeded to reassemble it into the original C file I needed to recoup my 12 hours of work. Luckily most of the files where the same from a prior backup just one file had a ton of changes from that session. It took me a couple hours to get perfect but it was better then re-writing everything I'd done in the past 12 hours.

Needless to say I then added a "make clean" target and I got much better at backing up my code every couple of hours instead of being a code zombie and waking up 12 hours later without backups!

With today's modern filesystems I have no clue how you could pull off a hat trick like this but that was then and I used the tools I had at my disposal to recover from my own blurry eyed mistake.

A friend of mine once said to me:

It's not how bad you mess up it's how well you recover.
And you're a professional at recovery.

I'm still not sure if that was a compliment or an insult...
start writing your story down now, and then reveal it later when appropriate
I have almost experienced a disaster like this with a script containing something like -

rm -rf "$foo/$bar"

- when the variables were undefined due to a bug in the script. Fortunately I was not running it as root.
I would encourage you to listen to Steve Gibson's Security Now podcast on Twit. But the gist is TrueCrypt has not been hacked. Take a listen to the "TrueCrypt WTF?" episode.

http://twit.tv/show/security-now
Net Neutrality: Crowdsourcing Data
Why I left libertarianism: An ethical critique of a limited ideology
Ah, I'm not a python man. Thanks for the heads up
I disagree strongly with this article. Yes, sure, there are probably some in our culture that think they can do no wrong. But life has a way of disabusing us of these illusions.

But this article isn't attempting to change their minds. Rather, it's attempting to instill paranoia into the minds of non-technical readers.

So, I mean, good luck with that. Maybe he'll succeed (probably not, it's one article). But I have a hard time taking this extended sidelong remark seriously.
"OpenEyes"?
"Imagine being subject of public hate because you expressed a unpopular view when you were young."

Rather than being able/forced to hide all of my unpopular opinions, I would prefer to live in a society that didn't hate me for having different ideas.

Privacy is important, but often the need is rooted in disfunction elsewhere.
After this sad announcement, I've revisited Earbits. I love the listening experience as I did before.

Sure some technical details where a show stopper for me, i.e. no email account, gamification/social currency had no effect on me and the lack of a proper mobile app.

But I overcame those obstacles: I’ve created a Facebook account for Earbits and I was automatically recording the playlists during the day so I could listen to them during my commute.

I think that the loneliness was far more important.
I never met or connected with other users that were listening Earbits too (I’m in London, UK).
Maybe the traditional listening radio experience was missing; with a DJ, a voice, a brand (Earbits) we can stick on.
It’s one thing asking people to connect with an artist, but clearly it’s another to create an Earbits community.

That said I’ve discovered :

- extraordinary artists

It’s one thing to help listeners to discover new artists, it’s another to help them to discover good new artists! To me that’s the curation miracle :-)

- extraordinary founders

I’ve been inspired by your journey like no other. I really wish you the best for the aftermath of 16 June. :-)

Thanks again for all the work you’ve done.
One of last links to Hollywood's silent-film era dies
Fodder for a "Silicon Valley" episode? Whoops, sorry, you said "real-world"...
Yep, the main difference is that wireless also works through walls, through a bed cover, if the person is facing away from the device, etc.
yes, i second that to the letter, only if we lived in that perfect society.
Is HN prompting huge bot traffic to my blog?
I post links to my tech blog occasionally on this forum. Sometimes when I do I see that I see a link to it tweeted out by @hackernews and @hnycombinator and so forth...automatically I presume. Sometimes also @hackernewsrss tweets it.

Then 20+ other accounts, many that are clearly bots, post it. All this happens within 10 minutes of me posting the blog link.

Hourly Google Analytics for my blog shows a huge influx in pageviews within the hour (500-1000), and these 'visits' are by visitors who spend 300% more time on the page than average and have an exit rate and bounce rate 200% higher than average.

I know how twitterbots can automatically repost links, but didn’t know they could click to. Is this likely what’s happening? Do others see similar traffic to their sites when they post links there?