skysight-inc/HackerNews huggingface dataset:
Philosophy is such a broad field that I think it would be hard to give a good overview of the entire field.

Philosophers love formal logic, so that's one thing that's of interest.

Once you have a good understanding of logic, Philosophy aims to investigate important questions that other fields don't seem to have a good grasp of. Here are some of them:

- How can that sensation of redness that you experience when you look at a ripe tomato arise from or be explained by scientific law, which seems to only answer questions that are very qualitatively different from this question? And how do you know that your friend has that same sensation of redness? Perhaps when he looks at a ripe tomato, what he experiences is what you experience when you look at a blueberry.

- If Star Trek transporters work by ripping apart all your atoms and then making a copy of you at the other end from atoms at the destination, would that still be you? Or would you have died, and there be a new person who is deluded into thinking he's you.

- When you push around a wrinkle in your bed-spread, is that wrinkle itself a real thing, or is it just similar different bunches of your bed-spread?

- If you could murder one innocent person to save ten people, would that be the right thing to do? If so, why? If not, why not? What if you could save a million people instead?
This is just pessimism. Yes, there are other hurdles to overcome for hydrogen. But this is a major advance in one of the primary pieces necessary for a hydrogen economy. What makes you think advances in other areas are impossible?

And to answer your question, much better energy density by mass.
What did Moxie say about me?
Adding (Warning: Autoplay Music) in the description would be the the courteous thing to do here.
Well, if they claimed that using batteries was "emissions free", I would complain about that, too.

With hydrogen, the issue issue is that (at least to my understanding) if you have electricity, we already have a far more efficient solution: put the electricity directly into a battery and use it to power a motor. Going the route over electrolysis->hydrogen storage->fuel cell imposes such efficiency penalties that it would need extremely compelling other advantages to be competitive, and I don't see them.
Vanilla Forums (hosted) Adds GitHub Integration
How to Lose Weight Fast by Abigale Kirsten
I get the PR angle... But over-representing Docker is doing more harm than good. People are reading things like "We would like to add feature X" or "Implementing feature X is on the roadmap", but interpreting it as "Docker does all these things right now". Soon people will be talking about how Docker makes pizza too.

Can Docker be secure? Sure -- is it? No.
> ... and not a single word about how the necessary electricity needed to make this "zero emission fuel" is supposed to be produced.

At some point you have to trust the reader to understand things that are completely obvious. That's a necessary quality of good writing, even if you're adhering to the newspaper standard of targeting someone at the 8th grade reading level.
Being a bit pedantic here, but shouldn't it be specified as a URI, "tel:0000" not a URL-ish "tel://0000" with 0000 as the authority?
Previously submitted to HN here: https://news.ycombinator.com/item?id=6376191
I've seen /proc permissions from version to version. For example the available of /proc/last_kmsg changed at some point. In kitkat its only available to UID system and apps with android.permission.READ_LOGS[1]. Not sure exactly when this changed but this line wasn't present in 4.1.2.

1. https://android.googlesource.com/platform/system/core/+/mast... line 218
Ignorance. The news here isn't "we discovered electrolysis!" It's "we developed a new, efficient, and cheap electrocatalyst!"

Did you do that when you were 9 too?
Kids losing limbs/lives in sweatshops certainly gives rise to emotions, yes.
The attitude people have towards price gouging in general is very strange. I never understood it until I read this: http://www.overcomingbias.com/2009/09/the-dark-side-of-coope...

>For example, in big disasters like hurricanes, certain goods like gas, wood, water, or food become especially valuable. While natural selfish reactions lead to higher prices for these key items, humans clearly evolved to see this behavior as uncooperative; we resist such price rises, and want to punish those who allow them.

>Perhaps this made sense for our distant ancestors, but today it is counter-productive. If these goods are not allocated by price, they will instead be allocated by standing in lines, personal connections, etc., processes that are consistently worse at giving goods to those who value them the most, and do worse at creating incentives to prepare for such scenarios.

EDIT: I'm getting a lot of replies with about the same argument so I'll just make a response here.

Uber and gas are not essential for survival. You can make the argument for water, but even that isn't necessarily better distributed with fixed prices. E.g. the recent water crisis in Toledo where people cleared out the shelves in minutes buying bottles of water they didn't need.

The biggest reason to allow price gouging is that it incentivizes increasing the supply. People come into the city bringing bottles of water to sell, people sell their personal supply. If price gouging was legal, people could make money storing supplies of resources to sell off during criseses. Supply and demand would eventually lower the price to what it costs to store resources for rare events. This kind of economic emergency preparedness should be encouraged as much as possible.
I recently used Thumbtack and had a good experience. Unfortunately, there were no movers in my area so it was a short-lived deal. After a day or so they e-mailed asked me to take a survey and I obliged. I noted in the survey that I wasn't able to find anything in my area, but I liked the site UI. A few days later I got a human-written e-mail with a list of moving companies in my area.
A number of kids' lemonade stands have wound up closed by police/health inspectors in the US for lack of permitting. Heh.
It makes me super proud that he used Panoramio, a site I created 9 years ago. Nowadays with the prevalence of Google Street View is less useful than it used to be for this kind of stuff, but there are still places that the GSV guys have not (yet) covered.
How Flash changes the design of database storage engines
For a while LEGO had 'modulex' and 'plancopy', at least one segment of which was targeted at lego based planning boards.

http://3.bp.blogspot.com/_1NgBBDpSJ34/SNm7FhCVdNI/AAAAAAAADX...
They're overselling the science. This is certainly not the first time anyone has used non-precious metals to split water at low voltages. Both Ni oxide and Ni-Fe oxide systems that they use in their paper are well known in the literature. Ni oxides have been published back in the 1950s while Ni-Fe oxide catalysts were introduced in the 1980s. However, they do claim that their NiO/Ni/CNT system is novel, which may be true.

In their experimental setup, they target 20 mA/cm2 current density. To achieve that, they can just increase the amount of catalyst they use. The geometric area (cm2) will remain the same, but the surface area will increase which will correspondingly raise current density. For example, one can stack sheets of carbon aerogel to achieve the same current density.
I'm not saying IS are the Donetsk separatists, just that they're not hiding in mountain ranges or tunnels and there's never been a question of "where are these guys".
Relevant comic: http://www.qwantz.com/index.php?comic=2672
Hey, I like chemical batteries too, but they're not capacitors. You don't put electricity into them. You drive an electrochemical reaction with them, which is subject to its own inefficiencies, as well as wear and tear on the battery, which isn't a problem with hydrogen fuel cells.

Hydrogen fuel cells also tend to be highly efficient.
This is only a story for those who ascribe some special property to a mechanical gear.
Reminds me of Stanley Meyer's invention:
http://youtu.be/Vd7QL1-NnlU
A claim of hydrogen obtained by water splitting fueled car.
Very intriguing case of potential pseudo science.
Using a AAA battery demonstrates that the process can be done using low voltage.
Why would you plan an airstrike and destroy a major highway because ISIS took a picture of themselves there?
Using the batteries is emissions free. Claiming anything else is just bringing emotional baggage and irrationality to the situation.
I think that paragraph is a problem of poor formatting. Observe the context:

> So pundits have proffered a number of suggestions for solving the public relations problem.

> The company itself should take no money during surge periods… Or when prices rise really sharply, Uber should donate its take to charity.

> These are all interesting ideas. But it’d be a mistake for Uber to let public relations trump economics when it comes to dynamic pricing.

That is, the author isn't actually proposing these ideas, but is repeating and disagreeing with ideas that others have proposed. However, the context should be moved to that paragraph for clarity; as written, it's way too easy to misinterpret.
Should change the title to "I couldn't believe what I saw: this browser plugin is hated by clickbait websites and the reason will blow your mind!"
Electrons moving in a magnetic field exhibit strange quantum behavior
The "takeover" button is evil. Please lower the volume for my fragile heart.
This is a big factor. The only place in my hometown that hires for IT related jobs is an international law firm. In that case the lawyers are top dog and you are just some lowly engineer. Where as at large tech companies you are the company's bread and butter and you usually get treated like it. Like you said in most businesses IT/development staff is just an overhead costs.
A car which runs on hydrogen can be refueled in a few minutes. Batteries need an hour of charge or a battery swap which costs labor.
Actually, the kids chemistry book that I read as a 10 year old or so had a very clear picture in it of one of the electrodes made of a guilder (dutch coin at the time) and noted it worked better than other coins because of its high nickel content.

That may have been coincidence but it certainly wasn't new knowledge to me that Nickel works well as an electrode when splitting water in Hydrogen and Oxygen.

I wished I'd kept my books from childhood and I'd be able to show you. It wasn't a particular fancy set either, just a bunch of test tubes, some leads to attach to a 4.5 V flat battery (I haven't seen those in ages either) and a bunch of basic chemicals.
Heh, it reminds me of cloud-to-butt.
Ask HN: Show your GitHub graphs
I've been working on the 1st project in which I've really needed to use git. I'm using github. I like looking at the graphs. Heres mine..

http://postimg.org/image/7a60z9kk9/

I wonder is this sort of typical? Start off good, then doldrums in the middle, followed by a few pushed and final insane puch to git 'er done.
I think I read somewhere that gravity waves travel at the speed of light. Does anyone know if they can be slowed down like light through glass/other materials?
Agreed. I've been successfully using mylvmbackup on 10gb+ databases for a few years now.

http://www.lenzg.net/mylvmbackup/
NRO has such a large budget because they design, build and launch a ton of satellites, high-altitude equipment and a number of ground and space-based comms networks. They provide that raw data to CIA, NSA & DIA who do analysis.

NGIA do GEOINT - think of them as the government's own Google Earth but with a ton more detail and live or near-live tracking in areas of interest. They provide maps to troops on the ground, determine what the NRO satellites should be looking at and merge all they produce (optical, IR, etc. imaging) and merge it with their geospatial and cartography data.

CIA, NSA, DIA along with NRO and NGIA are the big five. Think of the later two as tech departments for the intelligence community.

CIA, DIA, NSA and State (and others) will analyze ISIS propaganda using data from all these orgs and convert data to intelligence.
Low contrast, thin text on top of images? Seriously?

This is completely unreadable.
Zombie Sponge Reefs Are Lurking at the Bottom of the Sea
More Than 1,000 Businesses in U.S. Affected by Same Cyberattack That Hit Target
It really is a case of the government crying wolf. If there is always a drought then people get used to that as the normal.
They didn't comment about it because it's not relevant. As nardi and others have said, think of water splitting as a battery... or a way to store energy as a chemical fuel (i.e. hydrogen gas). Because your energy input can come from any source, it doesn't matter.

Agree that hydrogen isn't an ideal fuel though. They're overselling that point. But the science is about how to split water efficiently. It's outside the scope of this research to address how to handle and use hydrogen after that.
We're more likely to say "what a huge burden was NSA!". Major crypto breakthroughs created there (in either breaking something/creating something) would be kept secret for years, so it just bogs down innovation. GCHQ infamously invented public key crypto but no one was allowed to show outsiders for comment so it just died there until it was reinvented a few years later.
> why is y defined? its being called out of the block it was declared in?

Javascript doesn't have block scope; above example is equivalent to:

(function() {
var x, y;
x = 1;
console.log( x );
if ( x ) {
y = 2;
}

console.log( y );
})()

Variable declarations are always hoisted to the top of containing scope.
On traditional Wall Street, IT is considered a back office cost center.

Back toward the end of the dot-com boom, investment banks were grumbling how the dot-com boom had loosened requirements for IT to wear suits to work, and how with the bubble coming to an end, maybe they were going to try to bring the suits back. Sticking to that dress theme, what were financial analysts talking about when Facebook was doing its IPO road show two years ago( http://www.cnet.com/news/zuckerberg-takes-heat-for-hoodie-on... )?

While some unbehagen is felt with these sartorial changes, the real threat to traditional Wall Street comes from hedge funds like Renaissance Technologies, which hires no financial people, yet has spectacular financial returns, pushing Jim Simons up to #34 on the Forbes richest list. Renaissance hire astronomers as well as people like Peter J. Weinberger and Leonard E. Baum, but no traditional financial Wall Street people. Tossing the usual nonsense has led to spectacular success, meanwhile banks like Lehman Brothers go under.

Other companies of a similar model have sprung up such as D. E. Shaw. Many of these hedge funds are under the radar. I noticed Andy Lutomirski of AMA Capital Management on stage at Linuxcon this weekend along with Linus Torvalds, Andrew Morton, Greg Kroah-Hartman and Shuah Khan. These hedge funds are popping up and well-financed, and the traditional investment banks are beginning to build out in-house clones of these successful hedge funds. But the culture hurts it - at Renaissance the quants and computer scientists are the profit centers, at traditional Wall Street investment banks they are still considered cost centers who take orders from the "financial people" in other departments. How many people who start as programmers or systems/network/database/etc. administrators in the IT department at investment banks versus those who start off in sales or investment banking? It's a sign of how things are that so many of these hedge funds are popping up outside of investment banks. It's not just due to regulations.

One nice part of working at a large bank is they are global, and a software change you push out can go to London, New York and Tokyo, and be used by people worldwide, within a massive software, systems and network architecture and IT staff. But you can get that experience working at Google or Facebook or Amazon as well.

There's not much going for you if you work IT at an investment or commercial bank. There are sinecures here and there, but usually you're better off at a technology company where you're seen as part of a profit center, not as part of a major cost center. Banks are being forced to change due to outside pressure, but they are resisting the change from within. If you like dealing with bureaucracy more than technology, working at a bank may be for you. Otherwise you're better off working at a technology company - or at least a hedge fund.
> The Brigade 2 path tracer was developed as part of my promotion at the University of Delft, and developed into a product for OTOY.

https://www.linkedin.com/pub/jacco-bikker/
"For instance, the mountains on the surface of the Crab pulsar could be as high as a few meters, while in PSR 1957+20 they cannot exceed a few microns!"

What's the reason for the difference? What causes one pulsar to be able to have mountains a million times as high as another?
Why We’re Not Driving the Friendly Skies
A Flew, "An Introduction to Western Philosophy"
It is absolutely possible. My University offered them.

Now what I am about to say is "unfair" but realistic: Many people within the technology world won't respect a Web Development degree as much as other similar degrees. They're seen somewhat as an "easy" degree where you learn "soft" (non-transferable) skills.

So you might graduate and be great at PHP/MySQL/etc web-apps, but ten years later you need to learn some new language, and how flexible will you be? A Web Development degree only marginally adds to your flexibility.

My University offered the following courses: Computing, Computer Science, Software Engineering, and Web Technologies. Here's a brief overview of them:

- Computing: Computer Science without the Maths (it is actually fairly theory heavy in programming, software engineering, and computers in general). Just CS if you took out the maths and put in other generic computing courses in their place.

- Computer Science (same as Computing but with a lot of maths classes and less generic filler)

- Software Engineering: "The business of software development" (this has all of the 101s from above, but is more business focused and management focused, it is a software project from the top down for medium to large-ish teams).

- Web Technologies: Same 101s as all of the above but in the final years you don't do maths OR heavy theory, but instead do actual practical web development (using Java, PHP, and similar).

CS is the most well respected, then I'd say Computing and SE are similar, and finally Web technologies is last. SE has a nice niche for people who already have the industrial experience but lack a degree (essentially turning them into a future manager). SE is quite popular at Masters level after people do a CS at degree level (again, for manager credentials).

There's also a lot of Game Development degrees around now, and some fledgling "Mobile Development" ones. I have no knowledge of how respectable Game Development degrees are in that industry but I will say a Mobile Development degree suffers some of the same pitfalls as a Web Development degree (no flexibility, just platform specific knowledge).

So decide wisely. As a final thought: Whatever degree you pick make SURE it is one you're going to be able to pass and finish. The most important part of a degree is frankly a piece of paper that you spend $30-60K on, everything else, including actual learning is almost secondary. There are far too many CS washouts who couldn't cope with the maths and who should have just done Computing or heck even Web Development (since a "lesser" degree beats no degree at all).
> I can't imagine that a dynamic pricing algorithm is terribly innovative.

I took that as "... relative to the fixed costs charged by the rest of the service car/taxi industry". As the article notes other industries have been doing this for decades but Taxis still have pricing systems that have probably been in use for most of 100 years.
Electric skateboard's torque can push a car
Why the Robots Might Not Take Our Jobs After All: They Lack Common Sense
Jacco worked with/at OTOY for at least 9 months (until March 2013 according to his LinkedIn profile) on Brigade2. Perhaps this is a follow up without him directly involved?
Maybe something to do with the location being in the middle of a city full of civilians.
Do you really expect someone with the authority to make a strike is going to post about it on the internet?
New Fintech Lab, $30M Backing from JPMC
My understanding is that after the war, the rest of the world needed to buy stuff, but the U.S. was the only major country with an intact manufacturing base. So that's why the U.S. made 30.5% the world's manufactured goods exports in 1948, compared to 15.3% in 1938. See table XXIII on page 52 of:

http://unstats.un.org/unsd/trade/imts/Historical%20data%2019...
I thought we were talking about a 10 year old developer?
Hi everyone,

First, thanks for all the interest, it’s quite sudden and unexpected.

Actually, LowDB is an extract from JSON Server, a mocking REST server based on plain JSON (https://github.com/typicode/json-server).

So, basically, it's not meant to be used in critical / intensive applications.

Instead, it's much more a new convenient way to store data in simple use cases.

Regarding file writing, if your database is small or if you don't run a cluster of Node processes, you should be fine.

Regarding benchmark, as someone pointed it out, it’s mainly to show that storing to JSON file is fast enough and to compare operations speed. I agree that it says nothing about other databases and LowDB doesn't try to be the fastest either, just fast enough.
By the way, 'npm run benchmark' lets you run it on your machine.

However, keep in mind too that LowDB official release is quite recent so it should be improved over time.

Anyway, thanks for all the feedbacks and I hope you’ll have fun with it :)
It's also on github: https://github.com/evanw/webgl-path-tracing
Charles Sanders Peirce is worth a look, http://peirce.org

"Who is the most original and the most versatile intellect that the Americas have so far produced? The answer "Charles S. Peirce" is uncontested, because any second would be so far behind as not to be worth nominating. Mathematician, astronomer, chemist, geodesist, surveyor, cartographer, metrologist, spectroscopist, engineer, inventor; psychologist, philologist, lexicographer, historian of science, mathematical economist, lifelong student of medicine; book reviewer, dramatist, actor, short story writer; phenomenologist, semiotician, logician, rhetorician and metaphysician. He was, for a few examples, the first modern experimental psychologist in the Americas, the first metrologist to use a wave-length of light as a unit of measure, the inventor of the quincuncial projection of the sphere, the first known conceiver of the design and theory of an electric switching-circuit computer, and the founder of "the economy of research." He is the only system-building philosopher in the Americas who has been both competent and productive in logic, in mathematics, and in a wide range of sciences. If he has had any equals in that respect in the entire history of philosophy, they do not number more than two."

Quotes: http://en.wikiquote.org/wiki/Charles_Sanders_Peirce

Edit: from http://plato.stanford.edu/entries/peirce/, "Currently, considerable interest is being taken in Peirce's ideas by researchers wholly outside the arena of academic philosophy. The interest comes from industry, business, technology, intelligence organizations, and the military"