skysight-inc/HackerNews huggingface dataset:
For those interested in getting a better handle on the vehicle thermodynamics, see[1].
Feel free to play around with the open-source python model here[2]

[1] https://mdao.grc.nasa.gov/publications/AIAA-2015-1587.pdf

[2] https://github.com/OpenMDAO-Plugins/Hyperloop

[3] http://www.popsci.com/hyped-up-startups-race-hyperloop-life
The speaker also has some more info in his blogpost about the talk: https://drmeister.wordpress.com/2015/06/15/i-gave-a-talk-on-...
When you sent it in you made an agreement that they are not responsible for your data. Read the fine print.
800km is not so far, it's much closer than Europe to North America, US East Coast to West Coast, etc. A round-trip at speed of light should take about 5.3ms.
Financial transparency and the political influence of commercial publishing
According to this [1]:

* Good health care

* Lots of time off

* A defined-benefit pension plan

* Good support for parents
In the comments, they indicate that they're in the process of sending out emails to users. Sending lots of emails takes some amount of time; hopefully those are arriving in inboxes now.

It's low key given the impacts as they understand them now, but seems reasonable unless there's more to it than it currently known. We'll see how things develop in the coming days - just being forthcoming days after it was detected and providing guidance on how to respond is commendable though.
New dark pool addreses this major headache for Bitcoin traders
Periodically shotgun a bunch of RPIs (or their sensible equivalent) on just big enough satellites. The "servers" are distributed across the little nodes. Assume they'll fail and burn up, or just burn up, and keep on shotgunning them up there as long as subscriber fees are profitable enough.

Maybe they don't even need to be profitable if they also serve some sort of propaganda/free speech function for regions of the world that the developed West wants to poke at.
http://crypto.stackexchange.com/a/5691/291
I think there is an interesting parallel to code here. Its not uncommon for published algorithms to be ignored by practitioners in favor of simpler ones because of the perception that they are too complicated with too many corner cases. SSA-PRE comes to mind.
I believe that with internet and open source idea, most human needed knowledge is free. What you need is cheap energy to realize what you want from it.
I use LastPass to also store the username I used, which is handy given that:

1. Some sites use email, others use username (and sometimes your usual username is taken), and a handful of sites assign you something (eg: with an old VoIP provider I used to use, I had to log in with my customer number instead of a username)

2. I use a unique email address on every site, in the form "domain-i-am-logging-into.com@something.mydomain.com", though occasionally I have "companyname@something.mydomain.com" (eg: I use "amazon@" because I my account works with both amazon.ca and amazon.com)

LastPass remembers all this crap for me, and it also lets me keep other notes, password history, etc, as well as being quite convenient.
That's a similar idea to one of the interpreters in SICP, where for each node in a lisp expression, you compile a closure with the code that knows how to evaluate itself.

This way you can save on parsing the same structure multiple times, and it makes it simpler to implement certain optimizations like compile-time lexical binding.
Put a MacBook to sleep with an iPad cover
The mobile app-install ad is driving a boom in mobile ad spend
I generally run it from a script that then prompts for the passphrase. I'm working on a little tool of my own to work as kind of a minimalist OpenBSD-specific network manager that'll store a list of encrypted passphrases and let me connect to a network without having to enter the passphrase and SSID each time.
You should at least take into account all the countries that seceded from the colonial empires in one form or another. Including Ireland.
A customer support team centered around a CSS theme? Seems a little unrealistic.
No, I don't think so. Some people are more intelligent than other people, and it flows through to all their endeavors.
> Or, and more to the point, having generated a different password how do you remember which sites need a V1 password and which need V2?

> When sites introduce silly rules around password structure, how do you make sure your passwords conform?

Store _THESE_ rules in a central database. Not the passwords. Those rules can be public at no cost to security to the end user.

But LastPass, KeePass, OnePass and all sorts of Password generators store the actual friggen password, instead of salts or public information (like "5th password on gmail")
The most complex game built by a scientific superformula
"For renters like Soni Fink, 91, the rules have meant she can keep living in the apartment she moved into in 1961. A move to market rate would easily eat up her retirement income, she tells the BBC outside her two-bedroom home towards the south of Manhattan."

Why Soni Fink, 91, is entitled to live in a two-bedroom home?
> as you write and rewrite the same sector, you're doing so against the same set of "tweaks".

> but as a backdoor, it's a pretty crappy one, because it requires your computer not only to be on and "unlocked", but also for you to continuously update the targeted blocks.

The hypothetical backdoor in this example would be in boot/hibernate/wake/suspend/whatever code - i.e. not "on and 'unlocked'". That's the entire point of this backdoor. If the computer needs to access encrypted parts of the disk during boot - even if encryption is done by an e-drive rather than in software - code that causes repeated writes (or even a single write) to an important sector could be designed to subvert FDE.

But it doesn't really matter about this particular hypothetical. We both agree that there is plenty of room to backdoor Bitlocker without having to rely specifically on bitlocker code.
I use wpa_supplicant directly on my desktop (running Slackware64 14.1) and have no problem doing so via the command-line and conf file editing alone, though in my case it required adding a snippet to /etc/rc.d/rc.local to get it to connect to my wireless network on boot.
Do you have any more information about the success of the UK's GDS? How do you evaluate their success? Are there any similar EU organs? Do you know any ways for a CS student to learn more about governance?
> And then there's the removal of other developer's attribution. Which he thankfully stopped after everything blew up. Or his personal site which initially gave the impression that he was the sole creator of uBlock.

https://github.com/chrisaljoudi/uBlock/commit/6850fa0a262b87...

> Can you remove me as collaborator of the project please? Thanks.

> @chrisaljoudi Remove me too from collaborators, please.

They asked for it.
You can't be seriously arguing for that TV muting analytics thing! That'd be, in my opinion, a terrible invasion of privacy.

Also, what if people have their TV plugged into a separate sound system? They could always use the mute button on that. The only way around that would be to equip the TV with a microphone, to check if the expected sounds are in fact audibly in the room ... (I kid)

(Another thought, would they also block deaf people for using the mute button on their TVs? But maybe they could request a special permit or something ...) (again, I kid)
For the first time a movie will accept Bitcoin for ticket purchases
Thank you for the overview. Now looking at that separate "extension" that has the new behavior... I see what people are complaining about.
Naomi Oreskes NYTimes Profile (Merchants of Doubt)
The most popular PHP packages
I'm very much a physical note taker, but like yourself I cannot grasp the attraction of Moleskines. Yes they're nice things but I'm constantly crossing out (only so much that I can still go back and reference if need be) and rethinking stuff on paper. At my current rate of scrawling Moleskines would be a hugely expensive habit to maintain.

Personally I prefer "Black n' Red"'s hardback ring bound note books. The paper's quite nice and there's no ink bleeding from my fountain pen (which incidentally is a cheap Parker Vector).

Maybe I'm just not artisanal enough.
Sorry, I meant the pdf. Is there a url for it that will work for everybody? The one I get when I click "pdf" on that ACM page seems unlikely.
Once you've used it more than once or twice, however, you will find that writing cfv is much more convenient than typing --create --verbose --file every time you want to tar something.
Yeah, you could date it from any time from the end of WW2 onwards, with the establishment of transnational institutions.
I've considered this before. It's a nice idea, but it suffers due to the arbitrary length and complexity requirements that many sites place on passwords.
Millennials' banking habits could make Wall Street obsolete
It really has it all, doesn't it?
God damn it! I just got used to the thing!
Great stuff, looks like you've come a long way.

I'd caution against the term "over-engineering." It is a straw man[1] — no one is pro-over-engineering — so it is only ever used to discourage long-term thought. It's a good thing to try and avoid, but maybe pick something neutral like "predicting the future."

Hacking, on the other hand, is sometimes advocated for (e.g. Facebook) and can be good or bad depending on circumstances.

[1]: http://seneca.systems/values#what-constitutes-a-value
Parallel construction is a recent term that describes the widespread use of unwarranted information. It seems reasonable to assume that beforehand there was less commonly used unwarranted information; in the 2000s they used it to arrest street gangs, in the 1990s they probably used it to arrest drug lords.
Ask HN: Places to see in San Fransisco
Hi!

I'm a competitive programmer who's about to visit San Fransisco for 2-3 days. I was wondering what places I should visit in the Bay Area, I mean, I think it can be a great place to learn and see how startups work, so, any suggestions as to which places I should visit while I'm around would be awesome. I'm looking for a little fun trip with some learning and new experiences maybe.

Maybe being able to visit the startup you work in would be great, I don't know maybe Dropbox, Facebook, Twitter, Box, or any other cool company that allows me take a "tour"...
ZenPayroll CTO here. At least for the stage that we're currently in, having high unit test coverage, high-level integration tests, a strong code-review process, and individual accountability for bugs has worked very well for us so far. So well, in fact, that we don't feel we need a dedicated QA team.

It's also worth mentioning that when coming up with our values/principles, we started with the understanding they can and probably will change over time, especially as we grow. So while we don't have dedicated QA team today, we'll keep an open mind do whatever works best for us in the future.
"The most memory anyone needs is 640k"...
Let's Code About Bike Locks
I think some lazy college administrators are happy to have another excuse to manage student behavior (in a way that minimizes inconvenience to college administrators).

>Unfortunately for them, something called the American constitution strongly protects free speech, whether divisive, upsetting or not.

That hasn't stopped many from throwing up "free speech zones" and attempting to ban activism in common areas.
Globe Making (1955)
How many times does LastPass need to screw up before you guys flee it? Pick your security vendors carefully!
It's a matter of target payoff. Dropbox, Drive, etc. are not specific to just storing password DBs.

If my account is compromised, the attacker has one DB for their effort. If a cloud storage is compromised, the attacker has to scan through everything looking for DB files.

LastPass cloud storage is meant only for storing password DBs, so an attacker knows that within a single target lies a large trove a specific type of data.
1Password can sync your passwords through WiFi [1] without going through some cloud service like Dropbox. This is the main reason I use 1Password, and it so far has met my needs. Caveat is apparently it can only sync with a single computer.

[1] https://support.1password.com/guides/mac/sync-wi-fi.html
Shouldn't station-keeping be nearly independent of mass? Devote the same percentage to the fuel tank and use the tiniest working thruster available.
Not discussed in the article's introduction is whether Mr. Tanyolacar, and by extension The Economist, might possibly have any learning to do about how race works in America, and whether that learning might be something that he and they are currently experiencing as trauma.

There's a point past which trigger warnings are silly; Klan hoods in the quad aren't past it. That professor's an idiot at best, and The Economist has again chosen a revealing bedfellow.
What's the standard license or understanding regarding RSS feeds? If the site has no terms and conditions, is it assumed allowed? If so, wouldn't that go against the practice of explicit permissions used in API?
Nodejs Web App Starter Kit
The mechanism for new rent stabilized units are set asides in exchange for tax credits and/or zoning variances in new buildings. They end up costing the city a lot more in forgone property taxes than residents save in rent, but nonetheless seem to keep getting renewed.
Of course I meant 8.5, not 1.5!
Don't take this as a harsh criticism but I'm also building a large JS-based application and things have slightly changed since Firefox 1.0 I think...
Eh...things would have been very different if the US had to remain inside roughly the same boundaries it had at the time of its founding, rather than having an entire continent to expand into.

France has been through multiple Republics but hasn't really had a huge civil war since the French revolution, and I don't think you can blame France for all the instability brought about by external aggression (Franco-Prussian War, WW1 & 2) notwithstanding France's own missteps. Again, the US is in the happy geographic position of only have 2 immediate neighbors, both of which are substantially weaker in military and economic terms and both of which it had already beaten in war.

I do think there is something worthwhile to the way the US Constitutional system operates, and that the difficulty of amending the Constitution has been a good thing overall. But to ascribe the countries' very different histories to legal structures alone without considering geopolitical and economic differences is a bit facile. One might as well argue that France had existed in approximately the same territory for nearly 2500 years while the US has only been in existence for about 1/10th of that time - it's approximately true but not really informative.
I smiled when I saw that a javascript browser has no javascript support. :)

I like it. I tend to usually remove the style when I read longer documents. This is prettier while doing the same thing.

What are your next goals with it?
I used to ask in interviews if they had a QA team, because it was on the Joel on Software list http://www.joelonsoftware.com/articles/fog0000000043.html

I stopped asking because the answers were always some variant on "that encourages programmers to be lazy, because they know QA will be there to catch it" and because it seemed like lot of companies treated that question as a culture fit red flag. The responses were pretty hostile, like I'd asked why none of the engineers were wearing suits.

I have no idea whether it's a good idea, but the current tech culture seems pretty opposed to it.
How to Build Great Founding Teams – Startups and Venture Capital
It's a pretty bold claim to say 0% sickness as even old fashioned games can make a lot of people feel nausea[0].

[0] http://www.theguardian.com/lifeandstyle/2011/dec/19/video-ga...
http://without-systemd.org/wiki/index.php/Main_Page#GNU.2FLi...
you had one job. one.
This whole situation has gotten out of hand in the US. The exercise of speech [even disgusting, offensive, and/or odious speech] is not a safety issue. Words cannot hold guns, knives, or other weapons. Yes, they can be unpleasant. Yes, they can be upsetting. Yes, people who have been abused can be triggered.

However, it is pretty clear the intent of the academic in question was to promote discussion and debate about racism. The fact that is not an idea worth defending because the manner in which it was done offends people is really depressing.

> The reaction among some black students was to fear for their safety, and that is not surprising. What is more of a puzzle—for anyone outside American academia, at least—is that students and UI bosses continued denouncing Mr Tanyolacar for threatening campus safety even after the misunderstanding was cleared up. In vain did the Turkish-born academic explain that he is a “social-political artist”, using Klan imagery to provoke debate about racism.

We can't bubble wrap the world for the adults that live in it. We can only provide support groups, make sure they aren't discriminated against in the marketplace, and other measures to help them cope.
Sorry, but that looks an awful lot like bad-mouthed rumours I don't like at all. https://github.com/chrisaljoudi/uBlock mentions gorhill and ublock origin in a positive way and asking for donations is totally fine - it would've been a bit strange if that was the first thing he did after getting the project, in an extensive way, but I did not see that while using the extension. Can't have been too bad. Seeking for donations is especially a good idea since the original developer left the project because it was too much work -> counteract that work with money.

And I saw the offers to give back the project, which does not fit at all to the negative image projected here.

The donations sought are maybe a bit high (which only harms him, since less people might donate), and the one thing that I also don't like. But even that is nothing really bad, setting the current author is what needed to be done, and finding a proper representation of the original author could be in another commit.

There were big expectations that ublock would be totally great, than gorhill left and the new developer (who acted not in a good way to prevent that) got the fallout of the betrayed expectations. And how gorhill acted did not help at all.
Anonymous is supporting a new privacy-focused social network
Are they sure this isn't a matter of people having seen the videos through other means? I've rated movies I saw in theater or dvd in netflix before so that it can know me better. Guess that's a waste of time.
Lithium is quite dangerous, though. The quantities have to be pretty exact and injected with syringe, if I remember correctly, which means a doctor will have to do it for you. Every time. That's obviously problematic.
I applaud such a clear document; this is how company culture should be defined. When people make decisions, at any level, they should be able to reference a document like this to ensure it is within alignment and is proper.

But these are engineering principals, not company principals. And "employees" is last, not first. Nor is it particularly clear in what sense employees matter. Saying they matter does not describe in what way, it's a blanket statement. Do they matter that you will pay them at or above market rate? that you will help them with training and certifications? that you'll take care of them when times get tough? You have to spell it out. Really spell it out. Otherwise, it's too ambiguous and it'll get swept under the rug.

each page is 75% art, 25% text. I think this ratio needs to be flipped.

Still, this is something. I don't think it's "done" but it's more than most have.
It's very interesting that the reported price was ~ 1/2 million $ per 150kg sat. SpaceX's launch price to LEO is ~ $4.6k/kg, or ~ $700k per 150kg. While the price to launch these guys would be a bit higher (they need something to aggregate a bunch of sats into a single payload), normally the cost to build the sat is a lot bigger than SpaceX's launch price.
The nice thing about initscripts, though, is that you can get the best of both worlds by sourcing in common functions, as is the default and recommended practice on OpenBSD. For example, here's the initscript for dovecot on my (OpenBSD-running) mail server (with some comments and newlines omitted for brevity):

daemon="/usr/local/sbin/dovecot"
. /etc/rc.d/rc.subr
rc_cmd $1

Pretty straightforward: you set $daemon to the path of your daemon's executable (in this case, dovecot), source in rc.subr, and call rc.subr's rc_cmd command with $1 (which represents a command, like 'start', 'stop', 'restart', etc.).

rc.subr, meanwhile, holds all the complexity one will ever likely need in an initscript, in the form of various shell functions encapsulating things like starting, stopping, etc. And if that's not enough for whatever reason, it's easy to add more functionality either to the individual initscript or to rc.subr, since it's shell scripts all the way down. In my experience, reasoning about this sucks a lot less than writing a systemd unit file, let alone an initscript on a system without such niceties.
Basically none, you agreed to this as part of the repair process, like what sansavarous said. And in general, the person that repaired your machine almost definitely never saw your note as it went through a receiving department first before it hit a testing line, in receiving even if they read the note, at best they might add a comment to the case. Most of the time in repair shops like this there is a standard process and reimaging the Hard Drive is likely automatic as it is also used as a part of the final inspection test.

When I send a machine for repair I have an old drive I stuff in it that has nothing on it except Windows. This way regardless of what they do my data never leaves my side and I won't lose anything. I'd suggest taking that approach if you ever have to do this again, because no "extra" instructions you give them will likely ever be followed. Honestly, you can't really blame them as they need a standard process that supports high volume, and custom instructions on every order would not make that reasonable.
similar for data science: http://datascienceatthecommandline.com/

https://github.com/jeroenjanssens/data-science-at-the-comman...
Programming and Reasoning with Side-Effects in IDRIS (2014) [pdf]
I encourage you to read the warranty terms that came with your computer. Particularly this section:

"Software/Data Backup. It is solely Customer’s responsibility to complete a backup of all existing data,
software, and programs on affected Products before receiving services (including telephone support) or
shipping Product(s) back to Dell. In addition, Customer is responsible for removing any confidential,
proprietary, or personal information and any removable media such as SIM cards, CDs, or PC Cards. DELL
WILL HAVE NO LIABILITY FOR LOSS OF OR RECOVERY OF DATA, PROGRAMS, OR LOSS OF USE
OF PRODUCT(S). You understand and agree that under no circumstances will Dell be responsible for any loss
of software, programs, or data -even if technicians have attempted to assist you with your backup, recovery
or similar services. Any such assistance is beyond the scope of any Dell warranty and this Service
Agreement."
Probably. Then again anyone with a transmitting dish can be triangulated by the government body that doesn't like people doing that.
So, he antagonized authority figures and went out on his own terms. Sounds like a life well-lived. :)
What a sales pitch!
Yes, 1password have official android and ios apps that are working quite well. It's possible to enter passwords without placing them in the phones paste buffer.
If you got a keyloggers on your machine, you are already fucked, and 2FA won't help you. The keyloggers can simply steal your passwords straight from the browser when LastPass fills them in.
JSONiq Development Tools
Dodge and weave? They're just avoiding aiming down when they are at the equator.

I really doubt they're going to hit anything, at least in a way that hurts more than one sat.