skysight-inc/HackerNews huggingface dataset:
> Or is there a silicon junction that can convert 40% of the light energy that is incident on it?

This. The main benefit of concentrated solar power is that the area of the photovoltaic cells can be a lot smaller than the area of the collector (on the order of 100-1000 times). This in turn allows having expensive, but highly efficient PV cells, so you can convert 40% of the insolation on a given area to electricity, instead of only 20%.

A side-benefit is that you can actually use the waste heat from cooling the cells. The ETH Zürich is doing research on this, I think.
Not easy to answer without more detail. Monetisation depends on the type of people you have visiting. StackOverflow had a lot of difficulty monetising with adverts for books from Amazon, which they concluded was because people come there looking for free stuff, rather than to buy things (http://blog.stackoverflow.com/2009/11/our-amazon-advertising...). Other sites find this works well.

Who are your main users and why would they come to the site? Teachers? If so, what level - school, college, postgrad? Managers who purchase stuff for the teachers, maybe?

I would imagine you will also have to take into account the skills being demonstrated on the site and the value they have to employers. If your site will attract the best and brightest (e.g. top coders on StackOverflow) whom employers want to recruit, then I think the job listings would be more valuable than if it's mostly made up of people looking for free stuff to save themselves the hassle of making it themselves.
In my opinion the VAST majority of people never fact check, and most of the remaining people don't fact check unless the reporter's views strongly conflict with their own. In the current case being discussed, some embarrassment, and probably some figurative spanking are the aftermath.

In other more serious cases (crime, armed conflict, group terrorism, state terrorism) the aftermath of such a pattern is much more dramatic.

The hard truth is that media outlets need money to survive, to get that money they do two things: publish News/views that won't upset people paying for ads; and publish scoops that sell. No one is going to read a magazine or news "paper" that is broke.

But the hard question is: how do you effectively encourage properly done objective journalism? Is there a Reddit style karma scheme for news outlets? I imagine this will be effective if taken into account as an SEO signal.
The evidence says capitalism cannot be balanced:

http://en.wikipedia.org/wiki/Copyright_Term_Extension_Act#me...

The 9 trillion dollar bank bailout
https://www.youtube.com/watch?v=eVjz1OyBJCc

Libor scandal

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

Like I said... The rule of law is impossible under capitalism, since the kings of business (he who has the gold makes the rules) get to do whatever they want and the public gets fucked.
I'm colorblind and some links on the documentation https://docs.djangoproject.com/en/1.7/ don't look different enough from normal text. Mostly I'm having a hard time identifying links that aren't underlined.
Do you mean using an in app browser? Those hits still count IIRC
Nobody is in the "side of good", everybody is in their own side, that's all. If you think killing 130 hospital patients is bad then this is a bit tad worse: http://www.informationclearinghouse.info/article4068.htm
The ROI for a given bit of science over a one year span will almost always be a big negative. The ROI for "Science" over the last century is a huge portion of the GDP of the world.

I'd assert that for optimizing some mostly known process, building an ROI model for investment decisions is valid, but for long-term exploration of the unknown it's meaningless because you can't build a predictable model for ROI.
An American insurer would rather put you on the older treatment and make your life so miserable that you switch to another insurance company at the next open enrollment. It makes no sense in the aggregate, but it makes sense for any one insurer.

The thing is, that's not happening at all. Nearly all US insurers are covering the new therapies. There are a couple that are holding out and only doing individual approvals.

You have to remember that private insurance competes on coverage, particularly for the insurance purchased by large employers.

Your comments about the NHS having a different viewpoint is correct. Since the NHS looks at total societal costs, they can reap the benefit of any immediate costs.
Thank you, that is great information to have in mind! As I wrote in another answer, the subscription will most likely end up as a separate service so it wouldn't be a problem for customers to access the application if I get trouble with Stripe, at least. I would imagine that having a third party gateway would add to the expenses. I am not really too interested in that in the beginning.

Could you educate me when a chargeback would occur using Stripe?
Perhaps I could start a Change.org petition.

I find it really irritating that a company the size of Google, doesn't have a way to contact a live human for customer service.

Yes it's my own damn fault I forgot the password, that's why I'm OK with paying to have it reset. But I do want to have at least the opportunity to have a live human deal with it.
Thanks. Yeah I've used browserify directly within gulp before, and frankly I just find it too much of a hassle to write configs for either build tools. I use npm to script production builds and use reserver for debugging, which is working really well for me.
You have an idea, or vision, that you're passionate enough to move, learn, chase, fall, get back up, and continue to chase. This is so much more important that the Technical or Marketing knowledge that so many people have. Its something to be intimidated by, even if you're the worlds greatest Marketer or Full Stack Developer. Finding an idea you're passionate about is infinitely harder than learning skills required to make that happen. Most people's reaction to seeing that is a sense of inadequacy in their own life, which leads to jealousy & some "advice" that is meant solely to make you question your cause....bring you down to their level, and impart a feeling of superiority in themselves again.

How hard was/is it to decipher advice from jealousy?
Looking for Love in All the Wrong Places – How to Find a Co-Founder
Depends on your niche.

If you are catering to a very select, focused audience then you don't need volume, because the specificity is your selling point.

There is a lot more than traffic that companies look for in a job board. Since your site is based around educational content, try to find profitable, untapped markets related to this and focus on only those markets at the beginning.

You can be creative with this: for example, hedge funds routinely pay top dollar to find the best PhD students in math-related subjects, so maybe there is a way to bring both together.
And the real winners here? The media.
Uber limits 'God view' to improve rider privacy
We changed the URL from http://www.sciencedaily.com/releases/2014/12/141207091648.ht..., which pointed to the original UNSW release.
I like new design, but I think it's quite bright.
OK, let's put it this way. I have an entirely arbitrary calculation, taking input A and outputting B. I want to ensure that this calculation is implemented according to specification.

How on earth do you write a type, or set of types, for that that actually bear some resemblance to the spec and don't simply reflect the details of the implementation?

To simplify it to the point of near-nonsense, how would you write a type which says `append "foo" "bar"` will always result in "foobar", and never "barfoo" or "fboaor"? Or that a theoretical celsiusToFahrenheit always works correctly and implements the correct calculation? If you can't do that, how can you do it for more complex data transforms?
The juxtaposition of buying a This Old House subscription with bitcoin is fantastic and I may have to make that purchase.
Yahoo the most popular, AOL 5th and Glam Media 7th in 2013? There's something fishy about these rankings.
Apple (very) recently purchased this patient
Vesta Control Panel
I've argued with grown adults about childhood facts learned in error. It's frustrating, although I'm certain I have beliefs of my own that are still incorrect.
Maybe, and in my view, PR reps interference just makes things appear a bit worse.

The way I think about this is that if I was Sty teacher who wrote Mohammed's college recommendations, I would be very uneasy right now and think really hard about what I do next. If they really like the kid and believe in him, they may leave it as is and perhaps write it off to youthful indiscretion or lack of life experience (and there is a ton of that, starting with choice of friends - Kazakh "oligarch" heir made me puke on the inside a couple of times). On the other hand, they may be worried about their reputation with college adcoms' and really smart talented kids they write recommendations for in the future. Bottom line - they may be inclined to write a retraction.

I just fail to see this in a positive light. At the end of the day, when you stack up with a ton of other smart talented kids (as is 100% the case at Sty and with credible applicants at all top schools), intangibles like judgement, view and character become really important. He unfortunately failed on those just at the time when colleges are rolling out their decisions. I, perhaps naively, refuse to believe that duping a reporter with lies would give you any good credibility.
Analyzing 500,000 playlists with BigQuery
Sheeeeyet this is so cool. My team uses gulp and we all HATE it. Going to play around and see if we can replace gulp with this!!
Here's another helpful resource:

http://enetium.com/resources/Bitcoin.pdf
OMG. I can think of no stronger endorsement of a technology. take my money NOW
Looks like they used comscore for the bulk of their sources -- which only looked at US traffic to "web properties."
> an industry (small or large) that needs to cripple its products in order for people to be willing to pay for it

you are very strange. your goal appears to be primarily to annoy me. I admitted that I found your comments rude, and you still keep going. do you get pleasure from this ? do you just look for any argument on the internet about piracy and then show up to argue ?

you even purposely INCLUDE small music labels in your statement above. this comes after me pointing out to you that none of the thousands of labels and musicians that I have known and worked with have done any of this DRM stuff that you are so obsessed about. none of them.

none of them "cripple" their product.

that's sociopathic behavior. just so you know.
It must just be me, but it feels that the site is optimized for mobile browsing. There is very little content and my eyes have to move massively just to read the page. I actually prefer the old layout. :/
£1.1bn allowance for 100-mile Moray Firth subsea cable
Poor Sleep Tied to Brain Changes of Dementia
How Dolby Labs is open to hiring anyone for their summer internship
Dolby Laboratories is making it's internships available to candidates with any background, school or GPA.

In order promote diversity in the hiring process and make quality the only yardstick, they've adopted an unique approach to their internship application process.

All applicants interested in an engineering internship are invited to apply to the Advanced Imaging Group and showcase their creative and problem solving capabilities.

--------------------------------------

Interested applicants will be considered by taking one of their challenges and directly engaging with the engineering leads.

https://www.gapjumpers.me/questions/dolby-laboratories/

--------------------------------------
Uber's Response to Senator Franken [pdf]
Social Media Marketing – 5 things you can do with GetSocial
TRAVIC – Transit Visualization Client
The hinge that connects each blade to the rotor is angled with the same pitch, but on opposite sides of the rotor, like this:

------/ || /------

When the rotor applies more torque than the current angular momentum of the blades, the blades lag behind the central hub, pushing them the same direction against their hinges. On one side, that increases the blade pitch. On the opposite side, it decreases the blade pitch. The motor could also apply a slight braking force, to pitch the blades in the opposite direction.

The flight computer determines the correct timing at which to apply more oomph to the drive motor, which translates to the same effect as a mechanical swashplate due to the angled pins. The total energy imparted to the blades over a single rotation remains the same as with a motor operating at constant torque.

One disadvantage is that you will need a motor that is capable of applying more maximum torque, because you won't be running it at 100% all the time, but with a sinusoidal power level that will go both above and below that steady level. The other disadvantage is complexity in the computer controlling the motor. The advantage is mechanical simplicity.
Seems logical and expected. I was wondering if MongoDB would have to pay some licencing fee to WT for using their technology in document level locking and compression. Works well for us Mongo users :)
Excerpted from what I wrote a few weeks ago at http://www.dbms2.com/2014/11/30/thoughts-and-notes-thanksgiv...

WiredTiger has the same techie principals as SleepyKat – get the wordplay?! – which was Mike Olson’s company before Cloudera. When asked, Mike spoke of those techies in remarkably glowing terms.

I wouldn’t be shocked if WiredTiger wound up playing the role for MongoDB that InnoDB played for MySQL. What I mean is that there were a lot of use cases for which the MySQL/MyISAM combination was insufficiently serious, but InnoDB turned MySQL into a respectable DBMS.
It goes against the US tradition, but I'd prefer to not have the 'fruit of the poisoned tree' doctrine but instead direct penalties for violations by police.

As it stands, it has the following effect:

1. If illegal actions by policemen violates the rights of someone commiting a crime, then the evidence obtained this way is discarded, letting a true criminal go free, assuming that the evidence actually proves guilt.

2. If illegal actions by policemen violates the rights and privacy of an innocent person (e.g. me) then nothing happens.

In both cases, any benefit of the doctrine goes to people who don't deserve it - the lawbreakers with or without badges and uniforms.

For most law-abiding people who value their rights and privacy it would be rational to request that the doctrine is "violations by police in gathering evidence get handled by existing law".

If a policeman obtains evidence by breaking down a door without a warrant and taking some documents, despite being a professional with special training on what their specific rights and duties are, then let the evidence stand but let also the policeman stand trial (not disciplinary action, but a proper trial) for breaking and entering. Just as for cases of policemen shooting people - at least worldwide, given the recent events I'm not sure anymore how it's in USA.
> Any law making it illegal for him to possess firearms is likely unconstitutional. The only places where citizenship is explicitly mentioned in the US Constitution is in regard to eligibility for federal offices and jurisdiction of the federal courts. To a non-lawyer, it looks like a slam dunk.

It's not a slam dunk. The second amendment reads:

> A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed."

Who are "the people?" In the Preamble to the Constitution, the phrase "the people" clearly refers to the political community creating the new government, which arguably excludes illegal aliens. The Supreme Court in Heller v. District of Columbia construed "the people" in a way that is consistent with that use, and which lower courts have taken to mean that illegal aliens don't have second amendment rights.

However, the bill of rights uses "the people" to refer to the first amendment right to peaceably assemble, and the fourth amendment right to be protected against unlawful search and seizure. If "the people" is interpreted consistently for all the amendments, that implies that illegal aliens don't have several rights under the bill of rights, which is problematic.

See: http://scholarlycommons.law.northwestern.edu/cgi/viewcontent....
You forgot the BitCoin creator story,that was entirely fake.The guy didnt even know what Bitcoin was.Just because he was called Satoshi it was good enough for the journalist.
Even after "Clang"?
This looks like a well thought-out project, but I am unsure how it would realistically fit into an actual project. It claims that "it does not tie you to a web framework", which I guess is technically true... but the amount of setup involved on the server basically makes this thing its own framework (in terms of having to manage it on the back-end). And if you're already using a framework then it most likely includes its own form generation/processing system.

Seems to me that a more practical "framework-agnostic" form library would be one that is completely on the front-end, and assumes a REST-like API exists on the backend that it can communicate with.
Egloo – Candle Powered Heater: Heat Your Room for $0.10/day
Ask HN: How many billion dollar YC companies had traction before YC?
Stripe: Known founders (sold a company for several million) but had few users.

Dropbox: Launched on HN before YC interviews, might have had traction.

Airbnb: Maybe some from before they pivoted?

Twitch: Evolved from Justin.tv, which had some traction, but Justin.tv evolved from Justin casting his life. No traction beforehand?
In 2014, China produced nearly 1/4 of the world's CO2 emissions, with the US coming in second at 15% (however, I believe we're the worst emitters per capita). Within the US, 32% of our emissions come from powering the electrical grid. So globally, that's 32% of 15%, or a little less than 5% of the world's total emissions. If we were to start building nuclear plants and replacing coal plants, the most we could really hope for is a fraction of that 5%, maybe 2 or 3%.

In my mind, the negatives of nuclear outweigh the positives of potentially reducing global emissions by a percentage point or two. Since you agree that nuclear is only a stopgap measure, doesn't it seem like a drastic move?

We're talking about demolishing coal plants to build nuclear reactors within our borders that will produce long-lasting radioactive waste material and pose Chernobyl/Fukushima/Three Mile Island-style threats to public safety, simply so that we can demolish those in a few years when solar/wind/fusion "gets there."

On the other hand, if we used a combination of wind power and home-installed solar panels to simply reduce the energy draw on our coal plants, that would also reduce our home electricity draw. And imagine the economic boost we could see if the government was suddenly offering vouchers for home solar. Not only would that provide a lot of jobs for people to do the installations, but it would boost public interest and investment in solar, strengthening the technology as we spread its adoption.

This isn't to say that I don't think nuclear has its place. I think it belongs on the enormous ships that produce the world's worst pollution. You may have recently heard a report that 16 supertankers produce more (sulphur) emissions than all of the world's automobiles combined. These massive ships aren't held to environmental standards, and they burn some of the filthiest fuels. Yet we've been running nuclear subs without major incident, far away from the general population, for decades.

Why not use nuclear reactors in the worst-polluting vehicles, and encourage the proliferation of safer technologies domestically?

sources:
http://www.statista.com/statistics/271748/the-largest-emitte...

http://www.epa.gov/climatechange/ghgemissions/sources.html

http://www.dailymail.co.uk/sciencetech/article-1229857/How-1...
Hrm. I hope he doesn't get distracted from writing books. I love his books, but don't care much about video games. I wonder if he's tired of writing, or just wants to do something different...
[GoLang] The development principles of libcontainer
The claim was that his main markets were gold and oil futures, not other derivatives. It's technically possible in those markets to earn 100x in two years, albeit with extreme amounts of leverage. (You may be able to borrow twenty times the amount of funds you have in your account.)
> The only features it has regarding that is GC, built-in hash-table and type inference.

No, the real feature is understanding that a language doesn't stop at the syntax, the tooling and the environment are extremely important:

- unless you want to build multiple binaries in one command, there is no need for any build helper.

- hack-compile-test cycles are really short, to the point you can run simplest go programs as scripts

- go has its own package manager, allowing you to manage dependencies extremely easily (not technically specific to dynamic languages, but in practice often associated with them) (Note that I'd prefer if everything was managed by my OS package manager, but we're not there yet)

The go creators (and community) has spent a lot of effort in improving the overall development environment, and this is a characteristic I have seen more developed in dynamic languages (again, I'm not saying that it's tied to a type of language, but I have seen this more developed with the pythubyerlascripts)

> It's not like Rust is only (or primarily) for anything much lower level than Go.

It's not, It's just targeted at different problems. You wouldn't use Go to build a game engine [1] (you need tight control over memory and have some realtime requirements), and I'm not sure you need the tight control that Rust gives you over memory when you build an image processing server [2] (you'll need concurrency primitives for this)

[1] https://github.com/Jeaye/q3

[2] https://github.com/ReshNesh/pixlserv
When I heard of Magic Leap, "Snow Crash" is one of the first things that came to my mind. I really want to see a Magic Leap demo!