skysight-inc/HackerNews huggingface dataset:
I think I said this in the last thread about interstellar spacecraft, but rockets are probably the wrong paradigm for interstellar travel. People are right to point out that the amount of energy and mass ratios needed are huge. However, if instead you leave your reaction mass behind, and use reaction mass from where you arrive, then this is much less of an issue.

The classic example of a system which does something like this is the Bussard ramjet. Another would be beamed power or beamed propulsion, ala the Moties from Niven's The Mote in Gods Eye or Leik Myrabo's work. My personal favorite idea is using electromagnetic interactions to accelerate using the Sun itself as the reaction mass, and then doing the same process in reverse at the arrival star to generate power at the other end. The power could be put in using a beamed system or other system where the infrastructure would stay in this star system. But the energy could then be used at the other end to either power needs for exploration or colonization, or to re-accelerate the ship for another trip to another star.

To go travel to another close star in tens of years, you will need to have around 10% of your mass energy in kinetic energy (a Lorentz factor of around 1.1). So, as a first approximation, if energy alone were the issue and a reaction mass the size of a sun were used, an amount of energy equal to the US energy consumption in 2008 could accelerate about 30 tons to 10% of c (see http://en.wikipedia.org/wiki/Orders_of_magnitude_%28energy%2...). This is big, but not out of the range of human capabilities. And if the energy were recyclable many times, then this amount of energy would be essentially the largest investment in the creation of a true reusable starship.

This is interesting, because it gives us a good minimum cost for such a starship. If we assume a typical cost of energy of 10 cents per kWh, and a 60 ton vehicle (around the size of a Space Shuttle orbiter) going 10% of c, this gives us $750 billion for the cost of energy alone. This is about six times the inflation adjusted cost of the Apollo program.
That is really an awesome explanation, thank you! And thanks to the other commenters as well.

I think my interpretation of the 2nd law as "static" (like on a TV) misleads me because static seems so uniform, and really increasing entropy is the opposite of uniform. It is n[i] = rand() rather than n[i] = C. So your explanation helps a lot!

EDIT: So a followup question: Does information theory have anything like the 2nd law of thermodynamics? In the digital world we are used to lossless transfer, but children know that when you play "telephone" you lose information (or "gain" it in the sense the new message can't be predicted). Or maybe the analog of the 2nd law is the pigeonhole principle---I'm not sure. But if there is so much symmetry between the two kinds of entropy, is there a 2nd law for information?
We’ve Been Acquired but Wait, There’s More
While FOSS developers share political beliefs relating to the benefits of sharing software, FOSS traditionally had a culture of putting unrelated politics to the side. Strategically, FOSS couldn't afford to be seen as partisan given that it already encountered resistance from people who viewed it as a suspicious, vaguely communist, movement.

Now that FOSS is established, and there are developers that have grown up with FOSS existing unchallenged in society, political agnosticism isn't seen as important.

In contemporary Western culture, ideology seems to be taking the place of religion in terms of regulating morality. Social media has been instrumental in this transition. We're now seeing the emergence of global, ideological tribes that can communicate in realtime. Those who have power within these tribes are largely untouchable within the sphere of social media: they have the power to direct followers to lobby against others for perceived abuses, yet the power they wield intimidates many who would criticize them for abuse of power.
No, "unlocking" in this context refers to the baseband lock which prevents your phone from joining another carrier's network. This form of lock vastly predates phones with customizable OSes and was originally in place to prevent customers from receiving a subsidized phone, re-selling it for use on another network, and then breaking their contract, or trying to arbitrage a margin between early termination fees and remaining phone cost.

This guidance requires that phone companies allow their phones to join networks they are technically compatible with (i.e., have the radios and baseband support for). It's generally unrelated to the OS or bootloader, as this form of lock is often implemented at the baseband level.

The issue is that phones can be "unlocked" (made able to join another network at the baseband level) but non-configurable at the OS level, barring features requiring OS configuration, like MMS, from functioning. This doesn't seem to be specific enough guidance to prevent phone carriers from playing this trick, as they can continue to provide technically unlocked phones that don't work properly on other networks.

This doesn't really change much these days as the US market is gradually moving towards a financed (rather than subsidized) phone sales model where early termination fee arbitrage isn't possible and collections for broken contracts are more conventional. In general, carriers have less of an incentive to carrier lock their phones than they used to. Plus, some carriers (like Verizon) are already required to supply their LTE phones unlocked due to agreements made to acquire spectrum licenses, so this doesn't really affect them.
> In Germany, people have been fired for instigating the mob - not necessarily for saying things that offend others, but rather for rabble-rousing and trying to get the pitchfork brigade riled up.

One of the reasons I love Germany and Germans. They like to solve the root problem rather than trying to pretend to.
You'd think a PR person would know PR doesn't take breaks or consider unofficial stuff to be out of bounds.
I'm rather partial to the differential form version. Something about the neat almost symmetry (in the layman's sense) of the two equations. And how deceptively innocent looking they are.
It's worth noting that Homebrew has "gpg" and "gpg2" as aliases for the "gnupg" and "gnupg2" formulae, respectively. This might be confusing to some people wondering why there are two versions of the same thing.
Also predicted in the movie 'The Fly' where Goldblum's character fails the voice recognition during his transformation.

All future technology has, apparently, been predicted by 1980/90s sci fi.
Brendan Eich wasn't purged for anything he put out on social media, it was for a past political donation. But you are correct that minimizing social media use, or at least viewing what you publish with a PR perspective, will minimize risk of becoming the prey of ideological mobs.
A fair point but comparing the ideal that people should be held responsible for their actions to a bad racist joke intended to highlight that "living in America puts us in a bit of a bubble when it comes to what is going on in the third world" is apples and oranges at best.

If you feel like Gawker would be interested in running a piece on my comment then feel free to go ahead and submit it.
I am tempted to upvote this with the HN accounts of my desktop, my laptop, my work laptop, my phone, my work phone, my tablet and my TV. ;)

Separation is good opsec.
I'm not 100% sure on this, could you only delete albums for users who had given access to your app, or was it any user at all?
That's very likely due to size. Things like powerplants get more efficient as they get larger. (And as they get more complex by piling on more optimizing subsystems.)
(Drone) No Fly Zone
That is one implication. But as I explained in my other comment, the nonexistence of one-way functions does not imply the resolution of P versus NP. So the two problems are not equivalent.
I'd like to live to a world where your actions outside of the workplace in a physical or online sense don't affect how you're perceived but it's just not true.
Faraday sure did.
Physicists like to say Lorentzian (or sometimes Breit-Wigner) instead of Cauchy.
The event is the transaction.

For example of I have a 'make_user_preferred' event, I just transact the database and then add any metadata I need to the Datomic transaction.

Datomic is Event Sourcing if you create a realized version of your database on every event. It is just smart about it and keeps diffs.
Yeah, the most important benefit of Facebook is that you can say things "privately". But even then, it's a lot harder to portray someone as an evil villain cartoon when there's context.

Even if most people don't read more than a sentence or two, it's possible to look like a real human being, whereas on Twitter you get your 140 characters, and that's that. By the nature of the network, nobody cares or sees the ten tweets that come before/after the offending one.
Good work. I see a lot of people are surprised at the amount received for this report. Yes, that is typical of both Facebook and Google (and to a lesser extent, Yahoo will pay large sums for particularly bad bugs). They are extremely generous - Facebook recently paid $5000 for a bug report that existed in their careers portal despite that infrastructure being entirely third party.

If anyone wants to try and replicate this sort of thing, consider this: the mobile applications (touch.facebook.com, iOS/Android apps) that Facebook use very often take advantage of legacy api calls and code that the main web application has long since disposed of.

A well known researcher, Stephen Sclafani ('ssclafani) receiced a bounty of $25,000 for arbitrary account takeover using the legacy api.

Legacy code is generally the first place to look for vulnerabilities. Legacy apis which are still allowed to exist for backwards compatibility are prime areas to search for bug bounties.

Good luck.
Ask HN: How to open up side-project to potential partners
TLDR; My side-project has attracted a couple of devs looking to contribute (pro-bono). It will most likely remain a side-project, but has a small chance of gaining traction and becoming a "thing" (product? valuable resource?). How do I trial and/or on-board these people to help for free without jeopardizing my stake (hours worked, pride of creation/ownership)?

---

I created a side-project (to learn a web technology, as I'm a non-web developer) and to scratch-my-own-itch in the sports space. Embarrassingly, I've spent 3 years on it now (sporadic hours, several breaks) and gotten it to the point where it's live and shared with a few people in that niche. The feedback is that the concept is novel, useful, but that the website needs work, especially the design (I fully agree).

I expressed interest in getting help on that front and I've gotten some offers to help out. Although I'm interested in seeing how these people could help out, I'm not sure how to best on-board them.

Part of my problem is that although so far this is clearly a side-project, I admit to having a small hope that it could become something more. I've already had minor interest expressed by a sizable player in the space that they like the idea and are considering doing something similar themselves (which could just mean doing their own version of the same idea - there's nothing proprietary about it).

Whether it's warranted or not, I feel some pride of ownership over this project (and have invested many hours), so I'm wary of letting someone else on-board with no stipulations, entering a grey-area in terms of ownership. Don't get me wrong, I want outside help and eventually a co-founder/partner (I know; it's a side-project), but that decision should be made at a later point with more information.

Some would just say to open-source it and be happy with any and all help that you can get, but I'm not there mentally (pride, desire to steer the vision).

Advice on how to proceed?
Building the right thing, for the right people by using customer interviews
Ask HN: Implementing business processes
I'm going to do my next venture right, and I want to develop processes for everything. Even though I'm bootstrapping and starting solo, I intend to scale and I want the business to be able to function without me.

Problem is I've never actually worked in a corporate setting and have no experience developing business processes.

Does anyone have any book recommendations or advice? Thanks
Looks cool but anyone know what the hardware specs (CPU/RAID/SSD model/etc...) are?
They abort fetuses, they don't murder babies. A baby has gone through the process of birth while a fetus has not.

I understand that this won't change anyone who's already formed an opinion on abortion but lying about your opposition shows a weakness in your position.
Experiments in Visual PGP Fingerprint Representation
where can I download it?
among the five buttons at the bottom of the page, the one next to the leftmost button is undo.
Talking Machines Ep 4: Using Models in the Wild and Women in Machine Learning
At least it does it when you perform an action. It could have just popped in your face after 10 seconds... Either way, it's obnoxious and makes me want to not use that site.
http://www.rubylane.com/info/careers

If you want to code in TCL for the web, we'd love to hear from you.
There's a qualitative difference between making a joke, which probably had no bearing on her actual opinion or position on AIDS or Africa, and actively trying to deny rights to other people. It's not like she donated money to Stormfront.

The equivalent comparison to Eich would be if he made a joke ending with "... Oh wait, I'm not gay" or something.

(And wasn't a lot of the Mozilla thing really a disguised way at getting back at him for JavaScript?)
Phorm – World's First Morphing Touchscreen Case
Interesting! this looks like the kinda direction i was thinking my cloudspeq gem could go.
It would be interesting to examine the type of startups this attracts
It seems like more than just one stupid tweet.
Thermal inertia. Boilers have to be brought up to temp, and do not take well to throttling like a combined cycle natural gas plant.
I'd add: "All data-models have strengths and weaknesses. The event-log is weak on its own, but its strength is that it nurtures an ecosystem of other models for specific use-cases."
You do realize that a concept in HIMYM does not accurately apply in real life, right?
if the joke had come out of Louis CK's mouth, its intention would have been obvious.

given that, as she said in the article, "only an insane person would think that white people can't get AIDS", and the phrasing is obviously comic (dour opening, sudden & glib reversal, edgy punchline), I literally cannot read the tweet as bigoted or racist. Is the joke off-color? yes. Is it obviously self-deprecating, and aware of the fucked-up-ed-ness of white & first-world privilege? yes.
>That kind of person does not belong in a position of power

That position of power, and Mozilla as a whole, would likely never have existed without Eich.
But also, from the immediately preceding paragraph: "Several later studies did appear to confirm its findings — for example, Bozarth, Murray and Wise in 1989, also published in Pharmacology, Biochemistry and Behavior — but nothing came of those either."

That paints a confusing picture, so without looking at the specifics of the later studies for possible differences, I think it's hard to come to a conclusion.
Thanks! I have no idea the answer to your followup question, heh.
Morrisons Fajita Meal Kit 500g Recalled due to undeclared Almond – nut allergy
Hey srjk, I write for Gigaom and I'm hoping to talk to some developers about the news. Up for chatting about why you saw this coming awhile ago? if so, drop me a line at carmel.deamicis@gigaom.com
Video: Guy Steele’s Growing a Language Talk
Her Biggest Save
> It cannot become mandatory to read Reddit before publishing a paper.

No, but if reddit does better than your review team, your journal is less worth reading than reddit. That's not a good place to be.
MIT's OpenCourseWare is Creative Commons licensed, the only restrictions placed on a third party who wanted to caption the courses are 1) attribution, 2) the derivative work must be non-commercial in nature, 3) that the license remains the same.

A building without a ramp can't be copied and rebuilt with a ramp without rebuilding the entire thing, but a video without a caption can be copied and captioned without having to recreate the original. MIT went out of their way to make sure this sort of thing is legal to do.
Codius + Rust = ❤
It'd be nice if we could proactively repair DNA to prevent cancer from arising.
Spot on. Wish somebody would have told me this when I started out.

Though I probably wouldn't haven listen ;(
The National Association for the Deaf settled with Netflix in 2012. I couldn't find any follow up lawsuits since. It seems like an advocacy group just trying to make sure their members are represented.
Can this possibly be accurate? Does "disciplinary detention" really mean "solitary"? Reporting on South Carolina prison abuses in other circumstances seem to indicate that it's exactly that.

Here's a report the SC Department of Corrections produced. The numbers are right there. Can SC possibly be acknowledging that people spend hundreds of days in solitary confinement for Facebook? Or, really, for virtually any offense at all?

http://www.doc.sc.gov/pubweb/research/SystemOverview/social-...
Termbin
Yes, that is a disappointingly baity title. We changed it to one that attempts to describe the article accurately, but if anyone can suggest a better, we'll change it again.
What if you put the panel on the shed roof?

Also, there are solar 'panels' in the shape of shingles or roof tiles that blend in much more than the 'traditional' ones.
This is from the USAA mobile app.
Hey vivek, same thing I said to srjk goes for you as well. I write for Gigaom and I'm hoping to talk to some developers about the news. If you're up for it, would like to hear about why you started migrating awhile ago. I'm at carmel.deamicis@gigaom.com
Nope. I interact with them on WhatsApp, text message, email, phone and in person. Twitter is like a crappy version of text messaging on a feature phone for chatting with friends.
Thanks for refuting by example all the other comments that say "The author is wrong because no one actually believes those things."
It is worrying that there is a PIN try counter that can be reset so easily.
To clarify, the P85D model has a peak draw of 490-510.
Bootstrapping vs. Billionaires: 4 Secrets to Writing Content That Connects
Hacking real estate with a web scraper to find the best off market deals
> why those tweets in particular?

Because those are the tweets that got him fired. Obviously!

Fine, let's say Pax Dickinson is a completely wonderful guy without a bigoted bone in his body.

He still showed monumentally bad judgment. I don't buy your premise that losing your C-level position (and being unable to find another one) after carrying on for years the way he did is such a "profound and disproportionate impact". He demonstrated repeatedly that he's not willing to comport himself in a professional way in public. I also dispute that he is "effectively unemployable". He can certainly go get a job at McDonalds, because he's demonstrated that he's unqualified to be a corporate executive.

Edit: After reading the links you sent, it seems like the women he's worked with don't have a problem with him. So maybe he's not an asshole, he just plays one on twitter.

Still, you've really shot your own argument in the foot here:

> Shevinsky told me just the other day that she was still a bit uncertain about Dickinson after returning to Glimpse. “I was hoping he wouldn’t blow his second chance, because a third chance would be a challenge.” Now he’s co-founder of a company with a strong female CEO and a strong female advisor

Tell me again about how he's "effectively unemployable" and has disproportionately had his career destroyed forever?
(^Exploiting)\s*(CVE-2015-0318)\s*(in)\s*(Flash$)
Florida as well. Their state law specifically prohibits HOAs from disallowing solar panel installation.
Tesla didn't use that standard because it doesn't provide enough charging power due to being lower voltage.

The Tesla charger is actually better tech:

https://transportevolved.com/2014/06/16/nissan-bmw-look-adop...

I suspect the standard will go no where as Tesla also owns more charging stations than anyone else and is expanding them constantly:

http://www.teslamotors.com/supercharger
Thanks! Performance should be on par with high quality VPS providers like EC2 using SSD instances. We're using all modern Intel CPUs and Samsung SSDs with Linux software RAID, currently.
Whatever they were smoking, I want some:
http://bloomberg.com/404
http://bloomberg.com/500
If nothing else, this succinctly describes how to vet decision processes based on statistical tests.

I ran into a situation within my own organization where costly decisions were being made on variations in statistical test results that I suspected were local minima/maxima in natural variance. Replaying the decision process against the same target multiple times provided strong evidence towards changing how we did that.

It wasn't enough to just calculate the estimated population variance, etc., because explaining the significance of that was essentially a TL;DR problem to anyone whose opinion counted. It also required significantly better stats skills than I had, since adequately explaining the issue generally requires more expertise than recognizing it in the first place.

However, empirically demonstrating that the decision process was flipflopping on the same available information was extremely compelling.
http://www.rubylane.com/info/careers

We'd love to hear from you if you're interested in coding for Naviserver and have HTML/CSS/JS skills. We're working to launch www.rubylux.com now.
Most state's do have a sell to grid system for commercial scale.

Though maybe a new type of renewable power that is easily distributed will pop up.

I think the solar rush is mostly because of the subsidies. I think I'd rather fund commercial scale solar.
> That is the best description of the problem event sourcing tries to solve that I have seen.

Huh. I always thought that the problem event sourcing was trying to solve was more that modeling complex interactive systems through their static state rather than modeling the interactions directly as the principal domain objects is invariably futile. While "we're dropping all sorts of interesting data on the ground" may be one manifestation of that, I think the more common manifestation is "we bear too high of an expense when adapting our information system to changes in business process".
Great advice! Read this if you are thinking about starting a company.
Linus Torvalds awarded Arch Linux as the most consumer friendly distribution
I'm gay (& partnered, fwiw), and I'd have to agree that there certainly aren't any good arguments against gay marriage; at least, not any arguments we'd accept in a wealthy, industrialized, western society at the beginning of this millennium, but do keep in mind that the great, great majority of the world does not agree with that assessment.

So, what makes an argument legitimate? In order for one to suggest that there is no legitimate argument against gay marriage, you'd have to rationalize what it is that we in the west know better than those living in less-wealthy, less-industrialized societies outside our corner of the globe.