skysight-inc/HackerNews huggingface dataset:
Notify Mee performs a very simple but invaluable task:

I may be alone here, but I get rubbed the wrong way when people presume to tell me how invaluable [definition: having incalculable monetary, intellectual, or spiritual worth] their service is. Especially when, you know, it's not.

That whole first sentence can go.
Why not link to the book's page on Google Books? It has a better preview than Amazon's:

http://books.google.com/books?id=wUdtVHBr-OQC
From the real number axioms:

Let x \in R. Then we have that

x*0 + x*0 = 0*x + 0*x = (0+0)*x = 0*x = x*0

by commutativity of multiplication, distributivity, the existence of a neutral element 0 for addition, and the commutativity of multiplication once again. Thus, we have that

x*0 + x*0 = x*0.

For clarity, define

A = x*0.

Then we have that

A + A = A
A + A + (-A) = A + (-A), by the existence of additive inverses.
A + (A + (-A)) = (A + (-A)), by associativity of addition
A + 0 = 0, by the definition of additive inverses
A = 0, by the definiton of the neutral element 0 of addition

which gives us our desired result.
I guess that doesn't fit very well with my notion of what an option is :-)
Always is the operative word in that sentence. Most of the time they know quite well what they want, sometimes they don't.
You man it's not a get-rich-quick scheme ?

There are many routes to success, having a dedicated team that is co-owner of the project is one way of achieving that, but just like any other route it is not a guarantee.

'going nowhere' and 'being a regular business' are not the same.
You nailed it there, that is the key. And when such a thing comes around we'll see how strong that google brand really is.
I have a copy and dip into it regularly. As I read I can't help but see Tom's enthusiastic lecturing style. Although it's now 25 years since I took lectures from him, and more recent contact has been purely social, I am always impressed and humbled by his breadth and depth of understanding, and his ability to make material approachable. Understanding becomes your task - he has done everything possible.

Not everyone will like every part of this book, and it's not a book of study. For understanding the range and scope of mathematics, and for seeing the thought processes in action, it's excellent.

I recommend it unreservedly.
From what my high school math teacher told me, it's because the modern U.S. curriculum was last drastically revamped in wartime to pump out future engineers and physicists, which is why there is so much emphasis on trigonometry and calculus rather than sets, logic, statistics, or discrete math.
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In the 'rants' ( http://www.gigablast.com/rants.html ) there is a lot of background information, he says he originally released when he had only 8 servers.

Also, there is no way he has 100,000 servers, he never took in outside capital. I think that part should be read as 'it scales to 100,000 servers), probably wildly optimistic since I highly doubt there is a gigablast implementation anywhere that has that many servers.
I'm curious as to why the parent is being downvoted. He asked an honest question that raises a valid point: Who are these guys, and if [he's] never heard of them, why is this news?

As far as I can tell, they're an online shoe store that focuses on customer service. I've never personally used them or been to their site, but I hear the occasional good story about them.
I know two totally beautiful, very smart women in my own city who have been single for months, in their late 20s and early 30s. My circle of friends includes any number of other attractive, smart women who have spent substantial periods of time single — not just not in a steady relationship, but not even dating anybody casually. (I can think of one who spent, I think, most of a year single in San Francisco. She has a steady girlfriend now.)

On the other hand, I've also experienced the case where someone I wanted to date (beautiful and smart) was single for only a week or two, and I was too late in finding out. Amazingly, this happened during the six weeks when I myself was single! I'm sure glad I didn't end up with her, though. Compatibility was pretty low.
I would really like to know the details of Guy's contracts with these publications. He must be raking it in shuffling and reshuffling his posts from site to site.
In practice, N=1 (just you), a>>b,c, so it is p->1 and you have to go for it :)
Gordon Brown: Wiring a web for global good
Yes, but those offspring would (theoretically) be less likely to reproduce.
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Is there any reason not to use these new drives for server workloads with lots of random access? The specs are quite close to the SLC X25-E in most cases, and even better at some, at a fraction of the price/GB.
Wouldn't it be nice if the only companies that could be sued should have more than 100 patents, and that you can only bring suit if you or someone else you are closely related to is marketing a working product based on your patents.

That way all the abusers of the patent system can go and sue each other, and the rest of us can get on with the actual invention.
Time and again, it's been shown that businesses who seem to truly care for their employees, or just the People in general, are richer than any business that cares only to turn a profit.

A big thank you to breadpig for its charitable efforts.
It's expensive but the joy from growing your own food, the aesthetic pleasure of the dome, the mathematical pleasure of the structure and the knowledge of EXACTLY what's in your food are worth it IMHO.

For more pleasure: get a pen and paper out, design the structure, calculate the angles, buy wood and build it yourself.
Am I missing something? This doesn't work if the hash is salted. Are there people who use md5 without salting?

Oh, sorry, silly me, of course there are.

Anyway, if you want to try this without giving your password to some random person on the web, here's some code:

# python
>>> import md5
>>> md5.new('Anthony').hexdigest()
'20f1aeb7819d7858684c898d1e98c1bb'

I'm sure you could all have written that, but I've saved you the effort.
Yeah, that (or something like it) is why I added the second half of that sentence.
Are you by any chance not in the U.S.? I've always gotten that error message trying to get to blog.facebook.com (from Japan).

Go in through some U.S.-based proxy and it ought to work.
Too complicated to teach quantum principles or too complicated to be fun? Actually, I don't agree with either. It seems to illustrate the concepts pretty well, and (on a 3x3 board) the game space is far smaller than that of chess.
Carol situation is a case of prisoner's dilemma, which may be presented in a bit shorter way than the article does. Let's use standard game theory terms for the possible actions of one male individual:

'Cooperate' (C) = to publicly approach an attractive girl

'Defect' (D) = to ignore the girl, read the paper instead

So, imagine yourself walking into a cafe and seeing Carol at a table. She has been there for a while, and you have no way of knowing if some other guy has already approached her (or if Carol has a boyfriend). Let's assume for the sake of simplicity that the first man who dares to approach Carol always gets her telephone number (her nice way to reward him for being brave). That automatically means that the second guy will be rejected and feel bad.

The outcomes are (in order of preference):

CD = You dare to speak to Carol, you are the winner, the other guys didn't dare to approach her.

DD = Every man in the room reads the paper, Carol sits alone.

DC = You choose to ignore the girl, then some lucky bastard walks across the room and gets her number. Bad, but you have not lost your face.

CC = The worst outcome. You have approached Carol, but she is already involved with someone else. You walk back to your table, feeling miserable.

You notice that second and third outcome are somewhat identical, there is no gain, but also no real damage. A rational person may well prefer to do nothing and land in the 'neutral' area where 50% of total outcomes lay, rather than to approach Carol and to have 25% chance of success vs. 25% chance of a complete disaster.

---

I think it is not the women's attractiveness that acts as a repellent, but uncertainty of her status (has or has not a partner already). The way for Carol so improve her situation is to develop some sort of signalling that says she doesn't mind to be approached (flirting used to do the trick in old times).
(Note: this is not so much anti-Java as anti-today's-implementations-of-things-surrounding Java)

How is that not anti-Java? Today's implementations (there's more than one?) of things surrounding Java are all we have.
Hm. Nice idea but like the 5 slice toaster I wonder how many times in a year the sites that I use are down (well, other than HN of course, which crashes at least once a day and then takes several minutes to come back up again).

You'd still have to poll your email to see that whatever it was that you were looking for is back up, some kind of IM coupling would seem to be a more convenient vehicle (or a text message to a cell phone).

Still, it's a nice idea even though the current design looks like an email address harvester, no privacy policy and no 'terms of service' as far as I can see.
The whois on dingitsup does not inspire much confidence.
Even though I risk being downvoted, I am amused by froo's imagination. I hope HNers agree that probability of this happening is non-zero, no matter how small
I get that. But I think there is an additional element of explanation as to why standups are less disruptive.
The pain is completely in your head. And the more you do it, the less it hurts.
True. At the end of the day, Zappos is/was really just an online shop. Amazon at least were the first/biggest online shop in a field where infinite shelf space means a lot. Shoe stores on the other hand, could easily have been bigger if bigger meant better. What strong reason was there at the time to believe that Zappos would grow so much more then the many other online retailers with similar numbers.

Growth: http://i.zdnet.com/blogs/zappos-revenue.png

YC's 'How to Apply' recommends against saying you will win because your app will be well-designed and easy to use because presumably that is what everyone tries to achieve. Zappos eventually succeeded because they made the online shop equivalent: efficient back-end, excellent customer service, lots of products that people want to buy, low prices.
Is it me or is he basically saying: no one wants to spend the money to buy my products?

He talks about global changes and stuff, but he prices his things too high. I really wanted, and could have used, a segway - but I took one look at the price and just laughed.

I don't know how much the slingshot costs, but I bet he wants tons of money for it.

He is great at making stuff. He's great at selling (as in convincing) people. He's terrible at selling (as in moving product).

He needs someone to act as a reality check, AKA market research person.
mudenhat.com
Here's why: http://www.appropedia.org/Slingshot_water_purifier

It costs WAY WAY too much. He "hopes" to get it below $2000, which means right now it's more than that. And after you read the $/L estimate, add in the cost of fuel and you'll see the device is not cost effective (when compared to other devices that do the same thing).

According to here: http://www.ecofriend.org/entry/powered-by-cow-dung-slingshot... the system cost is $5200.
I like that websight. I'll send emale to it's author with mor suggestions.
"get a pen and paper out, design the structure, calculate the angles"

In that vein, this can be quite fun -

http://sketchup.google.com/
Funny, the windows shutdown bug that is linked at the bottom was marked as "Fixed" 3 hours ago. I guess someone who works there reads this blog.
I liked the subnavigation "Giga Bits" link.
Weird that they would block non-US access to their blog.
This is a significantly better explanation of the FSF's concerns than Stallman. His post reeked of FUD, but this post actually makes sense to me.

I quite like C#, especially 3.0, as a language. I am equally saddened that it is encumbered by hate as it is by fear. I honestly don't think Microsoft would start a mutually assured destruction war, but I've been wrong in the past. That said, I still wouldn't use it for an open source project because it is a political death sentence for any community-driven project :-( can't we all just get along?
this is dumb http://istwitterdown.com/
but this is dumber http://isistwitterdown.com/
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I'm suprised that something like this actually works.
# python
>>> import hashlib
>>> hashlib.md5('Anthony').hexdigest()

In later versions of Python (md5 module got killed)

Your right about the salting. I bet a google for the actual password would be more useful / worrying
I really like scala a lot - it's a joy to write fast, succinct code with just a pinch of magic, but I have to strongly agree with all but the first critique. Scala has the underpinnings of an absolutely incredible language (fast, expressive, jvm compatible being the highlights), but the surface implementation leaves a lot to be desired.

Basically, scala is desperately in need of a "Scala: The Good Parts" book.

On a side note, using scala has really served to increase my respect for many of the apache java libraries. They're horrible to use from java, but really top notch when you have access to a higher level programming environment.
Does MySQL care about Windows users? 
MySQL developers are showing indifference to Windows users - even though Windows downloads outnumber other platforms by a huge margin.
What about an online meeting? On an IRC channel? Can a hacker working on a project multitask and attend the IRC meeting while simultaneously coding (perhaps he has 2 monitors, he codes on the larger one and IRCs on the other one) ?

I'd like to hear some thoughts on this.
Modern, first-world standards cannot be applied to the third world...

That's part of the problem, though, isn't it? The tremendous migration of manufacturing jobs to third world countries has been in large part because they are not limited to a 40 hour work week and first world safety standards. Of course it's cheaper to manufacture in China, their regulations are a lot more lax than ours, although that may be changing.

I, too grew up in a Third World country. My parents were missionaries in Central America in the 80's. I grew up playing soccer with children who's bellies were bloated from parasites and could not afford shoes.

I've worked in communities that were essentially indentured servants to the tomato packing industry. The tomato company owned the housing, ran the schools, provided plumbing, etc.. to their workers. The employees were willing to put up with indentured servitude, because on a certain level because it was better than starving. It was better for their children to get a 6th grade education and then go off to pick tomatoes than to have no education at all.

Why did that happen? So we can have tomatoes at our local grocery store for $1 a pound.

I agree that it is better for the people in the third world to have jobs rather than not have jobs, but I'm pretty conflicted about the entire situation. Starving children, vs children working 16 hours a day in a tomato field? That's not a good choice to have to make.
One goal means you have no choice in what you are focusing on. At least with two goals, I can pick the better of the two to fit a specific mood or situation I am in (e.g. maker's versus manager's time per Paul's recent essay).
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How do you mean "we are forcing"? I don't think "we" create the economic realities. We don't live in paradise where we just have to lie in the shadow of a tree all day and only occasionally have to reach up to grab an apple. Life isn't easy.
The blog's author was one of the senior developers at OLPC -- he designed Sugar's innovative security model: http://wiki.laptop.org/go/OLPC_Bitfrost
VBoxHeadless - Running Virtual Machines With VirtualBox 3 On A Fedora 11 Server
> I honestly don't think Microsoft would start a mutually assured destruction war

I don't think they would, at the moment. I do think they might at some point in the future.

> can't we all just get along?

Sadly, Microsoft's business model and future profits depend on limiting our freedom when we use computers, so no, we can't just get along.
Zivity Splits Employees, Execs, Venture Funding Into Two Companies
It certainly is not all clear cut to decide, but I tend to think that competition is the only way to solve these things. If the economy where stronger in 3rd world countries, there would be more competition for workers. Therefore the companies hiring would have to offer better conditions to keep the workers.

I guess that is assuming an open market, too. It does not quite apply to dictatorships and slavery. Unless you count "flee to a neighboring country" as an option, which it probably isn't in most cases.

Edit: I guess even slavery does not completely invalidate the concept. If demand was high enough, prices for slaves would rise. Eventually it would be high enough for slave owners to sell, and effectively the new owners would have to offer freedom as a price.

Also neighboring countries would be willing to accept refugees if they had a high demand for labor.
I think he is trying to imply you cannot catch up. Doing that lost hours work consumes another hour and so on. The only way to catch up is to extend your working day by an hour.
Soon enough when there is no manufacturing left elsewhere China will capitalize on their monopoly and the rest of the world will have to work 7 days 80h+ shifts to make a living.
Yeah, XP is kind of predicated on people working in the same place at the same time.
Well the first half of my statement is obviously true (todays computers are not self-aware). The second half contains the word "probably".
My point was that it is silly to talk about robot ethics or something like that, since it just distracts from the real problem: the men building and using these robots/machines need ethics!
I feel this should be a browser feature rather than having a website. One has to search for the book mark and then provide email id, enter the captcha. Instead of these whenever there is HTTP 404, browser itself can give a icon in the address bar to keep polling the website. Firefox plugin may be?
I try. I support fair trade wherever I can. Mostly groceries but there is fashion as well and I hope soon more tech products will be available in the near future.
I just finished developing a web app with mochiweb. I started out porting one of our applications over to erlang but due to time constraints and my lacking knowledge of erlang I ended up just wrapping a php application in it to make use of some of the features of erlang. From my initial implementation though I was quite impressed at the ease of use and am definitely considering it for other applications in the future.
I want to know what Zappos' net income is. I don't think it is or ever has been, positive.
We have 3 XO's in the house. None of them work much. Well, one of them has been drawn on by the 2 year old who loves to play TamTamJam on it, but thats all. Everything else is borked, and to be honest I just can't be bothered administering the thing. The 2 year old gets more excited playing with the Aspire One running UbuntuStudio than he does with the XO.

A pity, because they sure are shiny.
It depends how you read the title - in fairness to jacquesm it does read like they have actually lost something. Which isnt technically true - they missed a great opportunity sure, but there is no loss, purely a failure to gain (IMO that's a huge distinction).
This is not some new insight pg just came up with. In fact it is pretty common knowledge, as Joel and many other has written countless times before, that interruptions are costly for software developers. Slapping new words on a well known and well understood problem, is not insightful.
[x] requisite light hearted "we are a different kind of company" tone

(agreed)
The ambition of the project has been inspiring, the slowly encroaching failure is a little disheartening. If it's true, however, that the XO spawned the netbook than OLPC has succeeded in an indirect way. First netbooks, then kindle, then Apple's answer to the netbook, then the commoditization of these products, then hopefully the ubiquity of these devices brings cost to a point where something like the XO vision ends up in the hands of the children by shear momentum. Negroponte, and OLPC, has been a catalyst. Don't deny them that much!
"but it works, it generally works well, is very well documented, and can be easily enhanced by myself or someone else."

Yeah, but maybe for you "excellent, clean code" means you have moved everything into XML configuration files. I thought the general consensus was that real experts can never know that they are experts, therefore your claims would make me wary of your skills.

Isn't there always a way to write things even better, cleaner, more effective, more modular, whatever? In that sense I think all of my code sucks. I am sure some people out there write worse code than I do, but I am also sure there is much better code.

If you think you are so good, are you even still trying to improve yourself?

The only way I see to write "perfect" code is to adhere to some standard perfectly. Like J2EE development: you have strict rules for putting stuff into XML files and so on. So if you did all that, and raked in the money, you can call your code "perfect". It would still suck, though.
Just wanted to comment on how elegant your site is - it's almost a work of art I think. That being said, does being simple and elegant sacrifice the ability to cross-sell other products simultaneously?
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Trao đổi trực tiếp khi phỏng vấn
> If Apple were aware of the patent infringement back in 2004 and Tsera knew that; why did they not take action then?

This is always my issue over these high profile cases. Patents are crucial protection on an invention - but it would be nice to have a time limit in the law; requiring the patent holder to prove that they only found out about the infringement within the last X years/months.
First Nation To Go 100% Solar
It seems the situation must turn desperate for nations to act. Tuvalu is almost drowning so they go solar. When will the US follow suit?
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Blatant content theft without so much as a link to the actual comics.
Does the preponderance of MySQL users care about Windows?
"financial exploitation, physical exploitation, and psychological exploitation and we’re all part of it"

Yes, we are. Even if the factories are "no prisons" etc. People in China live in the factories and sleep in dorms because they work 7 days a week for a wage that does not even allow them to pay rent. Even in case they could afford a flat they wouldn't have the time to go back and forth after a 12 - 14h workday.
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