skysight-inc/HackerNews huggingface dataset:
So, it's been a few decades since I took physics (and thus pardon conceptual and terminological errors in my no-doubt-fatally-naive question).... but isn't the atomic binding energy maximized at Fe (element 26), and thus a fusion reaction that transforms Ni (28) into Cu (29) will actually consume energy?
Xerox, Post-it, Frisbee, Roller Blades, Q-tips, White Out, Windex, Viagra, Aspirin, Escalator, Zip-loc, Scotch tape, Polaroid, Jacuzzi, Walkman, Velcro, Super glue

All become common English words, many of them in the dictionary but started as brands.

There are plenty more if you go back to the 19th century (eg. Heroin)

edit: Wikipedia has a list:

http://en.wikipedia.org/wiki/List_of_generic_and_genericized...
Impressive--but likely uncomfortable to wear because of the thickness and square edges. Perhaps a comfort fit finish on the interior, with rounded corners, and a third less thick.
ZohoMail seems to be a decent replacement for Gmail/Docs. I've set up one of my domains there now (free for up to 5 users). Looks pretty nice. Has email/docs/wiki/chat/calendar. It's very much designed to be a gmail alternative. I like.
On old Macintosh systems, JPEG files would often be labeled "JFIF file"[1]. This created some confusion which I believe contributed to people adopting the hard G pronunciation.

Back during the dotcom boom, there was a joke: "We'll hire anyone who can spell GIF." At some point even the joke transitioned to a hard G sound. Some of us long ago decided to 'go with the flow'.

[1] This was due to a freeware program called JPEGView, which was often set up as the default viewer for .JPG files.
http://en.wikipedia.org/wiki/JPEG_File_Interchange_Format
Adding to that its not ever worth that much trouble.

1. Master algorithms.
2. Get a job at <insert a big famous web company>.
3. ???
4. Get rich.

What exactly is 3) ???.

Really if you are joining a big company. Whatever that company is. Way to financial safety is not mastering algorithms and data structures. Its more like knowing how to do politics, being your manager yes men etc.

And very rarely are you ever going to get some work where its going to demand some algorithms mastery.
What an awesome idea! You should have patented it!
There's no wall; the spec is public, and the implementation is open source. Any other browser could add direct Dart support tomorrow if they wanted to.
Pointing out the existence of externalities is not sufficient. You need to show why government (loosely defined here as an organization with a well-accepted legal monopoly on the use of violence to resolve conflicts) will lead to fewer negative externalities than other means of conflict resolution.
Totally agree that such a party would be great.

Does left wing social policy include e.g. universal welfare, health care and access to education though? Or are you thinking mainly of "liberal" rather than "left wing"?

Part of the problem is that left wing social policies cost money and have to be administered, conflicting with low taxes and less bureaucracy.... :(
I am sure Rossi is a fraud, because this is not how science is done. Science isn't done behind closed doors, outside of the literature, and in hidden chambers. Nobody has bought this kind of nonsense since the mechanical Turk. It doesn't matter what goes in, or what goes out- if there was any truth or decency to Rossi, then he would have properly published all of his findings in the most honest way possible.

But even beyond that, he is such an enormous asshole that I want him to be wrong. If he actually is right about all of his cold fusion claims, than he has kept what is both the solution to the world's energy problems and an enormous break through in applied nuclear physics from the world simply because he wants to capitalize on it in the most lucrative way possible.

Either the man is both a scientific fraud and unethical, or merely unethical.
> However, afaik, these days the designs of Mach and Hurd aren't looked upon very highly, the stability advantages of microkernels aren't as important anymore with rock solid traditional kernels, and instead of figuring out how to empower non-root users on Unix systems we just give everyone their own VM.

On the other hand QNX, a closed-source Unix-like microkernel OS, has been used commercially for a long time - for instance, it powers Blackberry phones nowadays, and I heard the performance is quite decent.
For x == 0, this also blows up.

And for x > 1, which base you use matters. E.g. if x == y == 2,

>>> from math import log,e
>>> 100 * log(2,2)
100.0
>>> 100 * log(2,e)
69.31471805599453
>>> 100 * log(2,10)
30.102999566398115

I'm aware it's meaningless, but which base did you intend? :)
SIGGRAPH 2013 Technical Papers Preview [video]
Indentation, yes. Braces, no. He uses K&R style because he was the R (obviously). But nothing new is being written in K&R C these days, favouring ANSI C (99/11 or 89 if you're stuck on cl) with usually Allman/KNF style or a variation thereof instead.
Ask HN: Do you know any good books on management?
I've been working on my video game start-up company for a while now. Our team is a diverse group consisting of developers, artists, designers and an audio person. I have a background in software so I understand how to handle developers.

A concern of mine lately is that I realize I'm not leveraging my team member's full potential, particularly the non-programming roles. Do you know of any books where I can gain some insight in management?
"It was not possible to evaluate the weight of the internal steel cylinder or of the caps because the E- Cat HT was already running when the test began. Weighing operations were therefore performed on another perfectly similar device present on the premises"

Danger, Will Robinson! "Perfectly similar" according to whom?
What's your email? I'll shoot you our custom solution that uses Campaign Monitor to collect emails.
Just kill the browser and restart it. They were useful at some point yesterday. You don't need them today, or if you do, you'll soon find them again. Chill out.
Everytime I see a news report from a field that I'm familiar with, I get disappointed...

Definitely, congrats to the student! He really did astonishing work. But, nothing that could be useful in production. As I'm familiar with use of computer vision in traffic from academic and industrial point of view, I know situations this system has to deal with. And, I know what are the state-of-art results in that area.
Computer vision is heavily used in traffic, but, self driving car is still out of its reach.
I sure hope self-driving cars have dual redundant systems.

Segfaults are going to have a really bad result.
I always have 2-5 windows open with 5-30 tabs in each. This is an interface problem that needs to be solved, nobody really needs that many tabs open. It becomes ridiculous when you don't want to update your browser incase you lose all your tabs.

I noticed that I am really using tabs as a form of nascent bookmarking. Each window is a group or project and serves as a reading list, and then each tab is an item to read.

With option + click it is easy to add items to the reading stack that you can go back to later.

This could all be replaced with a simple plugin that manages these stacks in a sidebar. You could then go back to using only a single window and the tabs as collections.

Bookmarks are too permanent, while tabs are too temporary - browsers need something in between that is a way of arranging what to read next.
UnQLite (http://unqlite.org) is still faster than SQLite
That would only apply to specific airbnb stays which cause negative externalities like discomfort to other apartment residents. Do you really think that this is a measurable problem?

I don't. I think that hotels are just pissed because airbnb provides a fairly thin layer of technology that allows property owners and renters to use their property more efficiently (by having it occupied more often) and therefore threatens the very core of their business.

It's the same story with taxi drivers opposing ridesharing services. Does anyone really think that taxi drivers are mad because they're worried that these new services will provide a less safe or comfortable experience to passengers, which is supposedly the point of taxi regulations? Nope. I think they're mad because ridesharing services allow more efficient use of automobiles and therefore threaten the very core of the taxi industry. Any bets on what taxi drivers will think about Google's automated cars when they start offering shuttles for hire?

If we want to talk about externalities, we should at least recognize the possibility (and, I dare say, the near certainty) that many government regulations themselves have considerable negative externalities.
I've got one of the schnozzle bags with a compatible mat. It is categorically not cumbersome, not tedious, weighs the same and is filled with down so it has an R-value[1] of 5.9 instead of 1 which is what really matters when you're using a sleeping mat in a tent on a cold night.

[1] The R-value is a measure of how insulating a mat is, higher is better.
One thing is that the compiler can warn about missing cases when using enums (GCC optionally does this); with defines, it's not clear that several values form a closed set.

The other thing is that function signatures can now show 'enum myenum e' instead of 'int v', which is much clearer.
The only problem with big companies is, no matter who they are on an average large set ups are almost the same. There are some minor variations here and there. But your net experience will converge or move around the same point.

I don't know much about Google. But from whatever I've heard. The awesome projects where all this nirvana level work happens are very difficult to get into and bulk of the work is really maintaining legacy system.

Or in other words, its your usual large company. There is a possibility that the experience is marginally better. But as I said will on a average converge to any large corporate experience.
Levi, at least, is real.

http://www.unibo.it/SitoWebDocente/default.htm?UPN=giuseppe....

Several of the others seem to have papers in Google Scholar in somewhat relevant fields (e.g., electrochemistry).

From a quick once-over, I'm more concerned about the "perfectly similar" device that was used to calculate the presumed mass of active material inside the test cylinder. Stage magicians have been taking advantage of "perfectly similar" props for centuries.
Amazon's new HQ design
>The same morphing procedure was applied to a picture of a stranger, whom the study participant met three weeks earlier during an unrelated study. Participants tended to select the unmodified picture of the stranger.

This is the dumbest reasoning I can fathom if they wanted to prove that others think we are less attractive. All it proved is that other people have a good memory of what we look like.

They should have done this the opposite way. (Show the stranger an ugly-morphed version of the person's face and the regular version, if they chose the uglier version it would prove they remembered them as being uglier than they saw them originally.)

All they proved in that study is that the majority of humans have a good memory and that we WANT to look more attractive than we actually are. We don't think it, not most of us anyways, but we sure want to look better. When you show us a good picture and bad picture of ourselves and ask us to choose, we're going to pick the good looking one without a doubt.

"Oh yea, the one with the buckteeth and zits over there is me!"
Never using a space before the paren is more consistent. I don't know why people put a space there...
Ahh yes, the "job creator" myth of low taxes. http://www.youtube.com/watch?v=CKCvf8E7V1g
Yep, "Read Later" and Instapaper for the WIN. http://www.hanselman.com/blog/TwoMustHaveToolsForAMoreReadab...
And if you want something a little more complete, there's uzbl-browser: http://www.uzbl.org/
>Unknown Mathematician Proves Twin Prime Conjecture

This headline is misleading. The wired headline reads: "Unknown Mathematician Proves Elusive Property of Prime Numbers"

This mathematician (impressively) proved that there are infinitely many primes that have some integer N between them, and then bounded N by 70 million.

The twin prime conjecture has N=2. A very different result.

EDIT: The title has been edited
These kinds of interviews essentially ask: are you willing to put in the time to be one of the best in the world at what you do? Are you gritty, or wishy-washy? If the answer is no, don't bother to apply. That's not an unreasonable way to hire, in my opinion.
Really?

Most true startups are in need of developers who can actually ship something of value in an efficient manner. The last thing they need is an "engineer" obsessed with algorithms and data structures who turns a practical development task into a computer science challenge.
Ask HN: Is anyone being able to use Django+MongoDB in production successfully?
We're a startup and we chose to use the Django framework and we're more or less happy with that decision. However, we're constantly facing some problem or the other with our data store, MongoDB in conjunction with it. We are currently using the django-nonrel fork.

It seems the only two ways to use Django+MongoDB together are either using the django-nonrel fork of Django 1.3 which has its own problems (e.g. pretty much no more development) or to use MongoEngine (active development but no Admin UI). Both of these are causing us to sacrifice features of Django at the very least.

Are there any applications out there that have managed to use Django+MongoDB in production successfully and are those apps still running? How have you gone about it?

Do you think at an early stage its worth spending an extra 1-2weeks shifting back to PostgreSQL and not worry about scalability and multiple requests? I'm not the most talented DevOps guy, I would prefer a solution that would abstract all that away as much as possible, but then again, am ready to do what's best for the product.
> This guy has gone from self-experimentation (and caution about letting other people try it) to a full blown sales pitch full of errors and over-blown claims.

So it's exactly like any other campaign for supplements. But he is one of us, so apparently we cannot let him get away with it.
>Similarly, OVH's budget brand KimSufi is unlikely to go under any time soon, but your questions won't exactly be a priority for support.

What kinds of questions won't be a priority specifically? "What is linux?" or "Can you please reboot my server?" types of questions?
The dancing baby that started it all... I can't believe that was 17 years ago...
> Master at least one multi-paradigm language ... Some good candidates are C#, C++, Java, PHP, Python, and Ruby.

They all look imperative to me, what happened to multi-paradigm?
Read http://arxiv.org/abs/1305.3913
Statistics vs. Data Science vs. BI
Amazon Mobile App SDK Eclipse Plugin
JSLint recommends declaring vars at the top of the function because vars have function-scope regardless of where they appear in the function ("variable hoisting").
Particularly for the non-programming roles, I recommend the One Minute Manager (http://www.amazon.com/The-Minute-Manager-Kenneth-Blanchard/d...). This was written long before agile became a "thing", but it was a way of managing effectively with very little effort. It's a bit dated (my copy had advice about briefly putting your hand on the employee's shoulder to let them know you really care about them. Do not do this!)

Aside from that, here was my experience with the book back in the 1980s: I was managing a small family entertainment center and I was working too hard and was on the verge of being fired. I was told to buy the book. When I got done with it, I applied what it said, I dramatically reworked procedures to be clearer and simpler and found myself with too much time on my hands and the center was much easier to run. I wound up going from being on the verge of getting fired to getting multiple promotions and transfers to better locations.

Some people don't like the book, claiming it's too simplistic, but it's short, and both easy to remember and apply.
>Seen that "WAT" talk? None of that.

You realize Dart literally has broken generics? That the team thought covariant mutable collections was a good thing?
How does Yahoo plan on monetizing Flickr?
Does anyone know how he addressed the issue of bright lights hitting the camera sensor? or too low of light levels for he camera sensor to pick up quickly? I imagine that was the reason a $70,000 dollar 3d radar was even used in the first place.
As a person who made his own titanium wedding ring, I have to laugh a bit. It appears this ring is chamfered on only one side. That makes it a bit of a chinese finger trap, easy to put on, uncomfortable to remove. A good metaphor.

Don't tell my wife, but cutting a round chamfer on the back side of a ring is really hard. I built a custom chock and ground a tool to do just that.

Assuming the diamonds are all recessed, cutting a backside chamfer shouldn't be impossible. Just chock, indicate, and re-chock, repeat, until you get it aligned.

This is a brilliant piece of art.

The only thing I would add is that titanium is a PITA, but while I have no experience, apparently most of the problems go away when you have coolant. I have seen production cutting tools at GE Aircraft and they rough cut like it is butter.
Wow, thanks for this! Didn't realize that the suckless project had a browser. Finally I can get back to controlling web pages with my OSs window manager instead of the weird in-application mechanism that tabs are. I've been missing that since the days of ie6 (seriously).
Re-invent the wheel.
You should implement the most common data structures
in your language of choice. [...]

While I agree that it helps a lot understanding those data structures by implementing them, it might be good to add "Don't use them in production!" paragraph.
Slightly related (to the fact that the idea we have of ourself is different by how others see us) I suggest you to read the italian classic "Uno, nessuno e centomila" (One, No one and One Hundred Thousand) by Luigi Pirandello:
http://en.wikipedia.org/wiki/One,_No_one_and_One_Hundred_Tho...
Ridiculously cool. Thanks for posting this!
There's no point in reading the paper, it has near-zero information value. All it contains is as an assertion by the authors that the electric resistance heater (nice photo attached) emits more heat than it draws from the electric outlet it was plugged into. That one assertion, embellished with tables of numbers showing the claimed temperatures of resistance heaters and computed thermal radiation and so forth.
As I say, I'm trying to stay out of it. But I'll suggest that to my sister.

My past experiences say that a lot of crazy stuff happens in rural areas, and nobody hears about it.
Look, I can see you're really upset about this. I honestly think you ought to sit down calmly, take a stress pill, and think things over.
if(foo)

I avoid doing this because it looks like a function call.
The mass of the stuff inside shouldn't be a significant factor of the thermal energy-in energy-out measurements in steady state operation.

I think that was mostly to calculate a lower bound on the energy storage density of the trade secret magic pixie dust, not to validate the over-unity operation.
You might be right. I'm betting on the fact that if you compose your system of small decoupled components you can change your mind at a later time. Lets see what happens :)
The giveaway is this line:

> The research paper, which hasn’t yet undergone peer review, seems to confirm ...
We have always hosted email (to use your own domain you will need an Enhanced or Premier personal account, or any of the Family/Business accounts). We support XMPP fairly completely I believe; you can certainly set a status! Chat history is saved by default and delivered as emails to a Chats folder in your account (so nicely searchable by our swish new email search infrastructure).

You need to pick a FastMail username to use to log in, even if you want to host your own domain. You never have to use this email address if you don't want to.

Family and business accounts are designed for hosting multiple separate accounts (with full separate logins) under the same (normally custom) domain, all on a single bill. There are features for administrating the different accounts and a shared address book. A personal (e.g. Enhanced) account is a single set of mailboxes/login, however can be used with multiple email addresses/domains.

Hope that answers your questions.
Netflix Is Bringing Back Arrested Development
Shark Tank: The 3 worst startup mistakes made on TV
Nope, you're mostly right. If the wiki is to be believed [1], then nickel's a little bit of an exception to iron's rule. But the curve itself plateaus in that range, implying that there isn't an extreme preference in output like helium fusion: at that end small jumps in atomic number result in colossal energy changes, whereas fusion in the mid range result in rather small energy changes. (I certainly haven't jumped toy textbooks, but I suspect the energy released is noisy enough there's plenty of opportunity for both endo- and exothermic transmutations in this region (though only one maximum, Fe).)

Of course, small for fusion can still be enough to make something glow orange, just not enough to vaporize the lab (if the pictures in the paper are legitimate).

[1] http://en.m.wikipedia.org/wiki/Nuclear_binding_energy
I think that the first Google car will be very expensive anyhow. One of the reasons is, that you can fit a $40k sensor package into a $400k car. And going with a similar argument, self driving is probably a feature that warrants a 10% - 30% markup, so for a $40k car somewhere between $5k and $15k.
I wonder how cheap every other car manufacturer that has been working on self-driving technology can make it. I also wonder if tech geeks even realize they have been, especially when Google's "self-driving cars" is cited as a reason for Google's continued growth.
The problem is that you're trying a bunch of fad diets.

Weight loss is deceptively simple. Take in less calories per day than you burn, and you will lose weight. That's it. "Types" of calories is important too but is focused on too much. Exercise is very important, but trying to lose weight via exercise is ridiculous. It's much easier to just not intake those calories in the first place.

There are calculators that will help you to figure your BMR (basal metabolic rate) which will allow you to figure out the corresponding amount of caloric intake you can have that will allow you to have a net caloric "loss".

Actually putting this into practice does involve meticulous calorie counting and very probably feeling hungry a lot of the time, as you are used to a higher caloric intake; that is where the "deceptive" bit comes in.
Emitting significantly more energy than it consumes in steady-state operation as measured on multiple occasions by independent reputable scientists is a pretty big deal.

But extraordinary claims and all that. It could be still be some sleight-of-hand fraud, though concealing a power source of such energy density or fooling those instruments would be quite a trick.
Are you getting lazy with your social media?
The HN title is really bad and just plain misleading. It needs to be changed to the original news article title. The student didn't take a Google prototype and modify it. He built his own car and software. I'm pretty sure none of it was from Google.
Next project, the ring of power with glowing inscription?-)
It seems that feeding and cuting speeds are quite different from aluminium or steel. Also if it overheats it's like if you heat treat it, it becomes almost impossible to cut. That's why you must use coolant if you want to have some good results.