skysight-inc/HackerNews huggingface dataset:
2675 kWh system (about 3/4 of the yearly use of a regular family in the Netherlands) costs 6379 euros (9346 USD as of now) + 1498 euros (2194 USD) for installation. The system is sold as 'DIY' though so it should be possible to install it yourself.

Where I live there is a 1500 euro subsidy for the installation, putting the payback time (assuming constant energy costs) at around 7 years; with opportunity costs accounted at deposit account rates around 11.

I haven't decided yet but I think it's already an OK investment (not great but OK), mostly because of the subsidy; without that it would require significant increases in energy costs over the next couple of years to make it attractive.
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C ext support shipped in an "experimental" form in JRuby 1.6. The main problem is that C extensions suck in so many ways:

* Can't have multiple VMs in process, because C exts load all their state into C globals
* Can't run them concurrently, because they can't be trusted not to segfault
* Don't participate well in modern GCs, so they have significantly higher call overhead in JRuby or Rubinius than they do in MRI

FFI is a better option in almost every case, although it is admittedly a much trickier path to cross-platform library binding. The best thing the Ruby community could do to move Ruby forward is to either come up with a better C API or start using FFI for everything. C exts suck.
Sadly, you will find that HN tends to be very anti-Android from a UI perspective.

I read comments like this a lot, and I don't really understand them. There is no such thing as HN, just a bunch of people posting with differing opinions - including yourself. There are plenty of Android die hards here just as there are Apple/iOS ones.

Also, people who post on HN tend to be passionate consumers and producers of technology. It's silly to pretend they don't understand the trade offs of permitting preemptive multitasking on a mobile device or the use of a back button.
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Sadly, there is no version control back in that area all we have are backups of different subsets of what they wrote.
Examples are great documentation. Python's doctest automatically tests them ensuring they still work.
I suspect the middle courtyard will have a lot of features not shown in the design, including meandering pathways, benches and lawns for laptop jockeys, full wifi coverage, and maybe even an outdoor cafe (or two, or three).

It's the job of a landscape architect to create an environment that is both inviting for those walking outside, and serene for those looking out the window. Somehow I doubt they'll screw it up. (Even if they did, it's comparatively cheap to fix compared to bad architecture.)

With so many employees, I suspect it will be very well utilised, particularly on warm sunny days.
What do you think of short methods?
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I work in a small office park located quite similarly on a grassy field locked entirely by some freeways and other large roads, though the buildings here are cheap and ugly, but even if they weren't, it'd still totally suck. It's isolated, not a part of the city, essentially, it's just a large parking lot (most of which is below the ground, but that doesn't really change anything).

It's quite disappointing. Maybe it's a marvel of architecture, but indeed it's a failure of urbanism (which, I believe, is much more important). It's 2011 and we're still building things while thinking in predefined square lots separated by roads? Such a shame.
MyColorscreen.com announced 4 NEW features.
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Your reluctance to install Java on the servers you're on means you're missing out on one of the best Ruby implementations available. You'd be well served by putting aside your prejudice and just giving JRuby a try.

That said, there's certainly domains where JRuby is not a great fit. C extension-heavy systems are one; because C extensions are so crippling to more modern VMs like the JVM or Rubinius, you're better off using the implementation the C API was designed for (MRI). Or if Rubinius suits your needs and C extensions work well enough, I'll recommend Rubinius over JRuby any day. I hate C extensions, or at least I hate them in the form they exist in MRI, since they're invasive and damaging to modern VM features like good GC and concurrent threads.

In any case, it's worth seeing if FFI (the Ruby API that Rubinius pioneered and JRuby made generally available) serves your purposes, because it works extremely well in JRuby and requires no C extension support. And I'd suggest you actually give JRuby a try; it's so much more than "Ruby for Java interop" and may work better as a "plain old Ruby impl" than you expect.
0, currently just doing my own thing at home.
sorry if it felt like that.
The biggest problem IMHO with the APIs is inconsistency, for instance on the FB graph API on some calls it gives you a 302 redirect instead of returning JSON.

so instead of { image: "http://foo.com/image.jpg } you have to catch the Location header and write it into your object.

Next up would be how to represent a date in JSON which seems to vary between an time_t cast to an "int" and a string in ISO-8601 format.

Lets not even get started on XML and attributes vs. elements.
I would like to second that :D
Somehow I don't know people willing to do stuff like this. I'm an Android dev but don't have apps in the market yet. But I would definitely like to change that and I'm really on it right now.
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I hope not. Game Center, iMessages, App Store? I haven't heard anything about twitter coming in through the OS, just going out. AppleIDs are even more important now, listen how often Blsckberry users talk about their BBM pins/IDs.
Sorry, but what/how exacly are you actively contributing? Other than yesterday's naive port of mod_pagespeed, I didn't find any of your contributions and you make it sound like something you're doing on the regular basis.

Don't get me wrong, I love the idea of your product from the very beginning, but don't say that you do things when you don't.
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There is no clear explanation of why he thinks C is suboptimal - his statement implies to me that there are other languages that are clearly better for writing things like OS kernels etc. and I'm not that has been demonstrated yet.
Except in this case, thanks to DRM, obfuscation, "secret-club-ism" and some generally really ugly examples of rent-seeking, you're the sidewalk.
No, no-one suggesting removing non-free OSs. However the grandparent post suggested removing shared hosting, since IIS doesn't compete there. This would fudge the stats in IIS's favour, in the same way that removing non-Free OSs would fudge the stats in Apache's favour.
Had an awesome time at the last meet. Looking forward to Friday's.

Thanks Ravish,
Best,
- Jassi
Anyone think this might be his way of calling the hackers out and try and get some logged information about them?

I probably am way off mark here but do you think there is a chance he was running some monitoring software on the server tracking their every move.

As someone stated, would you really stake $10k when you are running proprietary software that the world has open source access to??
What's wrong with Drupal?
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Obvious point, yet horribly argued.

It is clear to everybody that iMessage is not a platform-independent to send messages today. Thus, there is still a need for BBM, SMS, and all.

However, the distribution of people who own iPhones is not as uniform as the author seems to imply. Sure, maybe there are only 5 iPhones for every 95 other phones; however, I know my girlfriend, parents, and close friends all own at least one iOS device. The service will remove the need for SMS for those who are in the same situation, and the extent to which this happens is not addressed here in any valuable form.

It is also true that GTalk may have a higher usage, and I'd be thrilled if iMessage worked with GTalk (I think). However, iMessage will be tightly integrated into the Phone application, which makes it much more convenient to use than any other IM service on the iPhone. Maybe iMessage/GTalk interoperability would make iMessage more effective; this doesn't mean as it stands iMessage will be ineffective.
It's the engineers that generally come up with solutions, which management can't see or does not deem important because they are generally too far removed from the problem. Which is why having managers wield what gets done and what does not leads companies to operate in a very non-startup way regardless of how hard they try to avoid the inevitable.
Twitter mail.
Even the simplest phrase in Mandarin Chinese is incomprehensible to someone who hasn't learned the language. That construct is easily understood by anyone who has learned some basic Go.

I have taught Go to many classes of complete novices and none of them found the syntax difficult. On the contrary, many complimented its simplicity and consistency.
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This is not the case with passwordcard.
Well put. JRuby and Rubinius both have rich futures ahead of them, and they're going to be largely separate.

If you want to use C extensions, Rubinius will be a better fit since it matches the MRI process model better. Rubinius will also map more directly to underlying OS APIs and quirks than JRuby, since we have to either use the JVM's vanillified versions of APIs or do the hard work of routing around the JVM with our own native libraries. And if you're a Rubyist looking to hack on internals, Rubinius is certainly more approachable right now. We hope to implement more of JRuby in Ruby in the future, but we'd need a really good reason to throw out fast, working code to make a move right now.

If you want to run an entire Rails site in a single process, JRuby's going to be the best option for a long time. C extensions required for native Ruby impls to interface with databases, etc, will always force trade-offs in memory management, concurrency, and process models. Those trade-offs do not exist when running on JRuby and using Java equivalents of those libraries. As a rule of thumb, the more unmanaged code you have in your application, the more hassles you're going to have. Native impls do almost all their interaction with the outside world via unmanaged code (C exts for DB access or fast memcaching, C-accelerated servers like Thin or Unicorn, etc). That's a problem.

If you just want to run some Ruby code, both implementations are going to serve you well. You're going to need to evaluate all options before deciding, and both implementations are going to be excellent Ruby implementations first and differentially interesting platforms second. And therefore, as you say, it's not a zero sum game. We'll all bring different features and weaknesses to the table, and users will choose which impl fits their needs best.
The project looks like a literal approach to the walled garden idea.
Did they intentionally make it easy because they have a different agenda, or are those hackers really that good?
This usually just means that your taste has grown more refined and you no longer find the culling upsetting. Just keep doing what you're doing until you hook the big one.
SC2 is actually a great way to meet and befriend people remotely

Too bad they removed playing on any servers except your regional one...
How did you block that?
Also, if you're doing it all over again after a respectable exit, you're more likely to keep going for the really big prize. Which is what investors are after.
My preferred solution: http://blog.jgc.org/2010/12/write-your-passwords-down.html

For those who don't want to write code, I shared an implementation of that here: http://www.loup-vaillant.fr/projects/password-generator (please tell me if I made any error)
There's always a really simple solution to those rules: post-its.
Only one way to find out :)
99.99% of people won't have an IPv6 connection and can't be bothered to set up a tunnel. However it's still possible to play with IPv6 on your home network, and relatively simple too if you have at least one Linux box:

https://rwmj.wordpress.com/2011/06/02/ipv6-lan/
(Make sure you read the comments for clarifications and fixes)
I understand that Apple is a very important company to Cupertino, but I've never need a city counsel so lovestruck at a meeting. They should just give him a rubber stamp for whatever he wants to do.
Lots of apricot trees... perhaps the odd McIntosh Apple? [1]

[1] http://en.wikipedia.org/wiki/McIntosh_%28apple%29
How to protect your brand in the new .XXX extension
He did mention that his manifesto is meant to be provocative.

1) The difference is that the experts' opinions are not being amplified anymore,as there is no reliable "authority index" on the web yet. Should we trust wikipedia to build, say, LHC?

2) People actually read less books http://www.newyorker.com/arts/critics/atlarge/2007/12/24/071... . I guess he's referring to works of fiction and philosophy that require long linear reading, not reference material.

3) Classics are called "classics" because they convey fundamental ideas that shape our society. I would argue, though, that the problem is that "classics", as in "seminal books" are not being written anymore. Btw, Socrates never wrote anything.

4) True, i dont see what's bad about foregoing memorization of facts that are not relevant to one's pursuit.

5) Getting through college is just the start for academics. Making a profound discovery is the goal and it's much more difficult than making a moderately successful business. [My theory is that the role of luck is much bigger in entrepreneurship than in academia]
IMHO: don't see no problem or valuable advice in the post above. If you are really interested in helping person, you will explain the need for specifics. If not, you'll give an answer you gave.

Move on, nothing to see here.
The DS screens are roughly the same distance from your eyes, though, so switching between them doesn't require refocusing, which is both tiring and slow.
I've started to feel that startup culture here in Bangalore is not as much as it is believed. I want more fellow hackers to confirm this.
I personally thinks that this sounds like blackmail by the xxx registry and that registrars try to cash in.
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HTML5 Canvas powered, with a flash fallback so it even supports ie6 (very slow on it though). Supports twitter, facebook, and pasting in anything you like.
HTML5 Canvas powered, with a flash fall-back so it even supports ie6 (very slow on it though). Supports Twitter, Facebook, and pasting in anything you like.
Designing with C.R.A.P.
I worked in one of the main campus buildings that's been there for a while (Bldg 25) over the summer and walked to work every day. That is, hands down, one of the most pleasant walks I've had the joy of taking. I absolutely love the Microsoft main campus and think their design blends in perfectly. I'm not sure how to describe it but it just has this Seattle feel that makes the buildings seem very harmonious with the lush greenery of Seattle. If I had the chance, I'd probably pick that area over almost any other in the country to walk.

In case you can't tell, I've been back in Chicago for a year now and the weather is absolutely killing me.
Good for you - the healthcare system (worldwide) needs more objective people like yourself. Good luck!
They defeated the Persians in one of the most important battles in the history of western civilisation.

http://en.wikipedia.org/wiki/Battle_of_Salamis
While not explicitly stated anywhere, it seems the Wii U only supports a single new controller, as they haven't ever shown more than one. It probably ships with it, so you won't need to buy it on its own.
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When I talk about the platform I am talking about the whole lot. The ecosystem that ties it all together. Surely you won't argue that Google makes more money on mobile ecosystem than apple does on theirs.
Au contraire, Steve had his share of nasty events dealing with bureaucracy, see http://en.wikipedia.org/wiki/Jackling_House .
Had a great time meeting like-minded people last time. Looking forward to this one.
They've only mentioned 12cm discs so far, and no word on GC controller ports.
They had me nailed! Sort of embarassing.
Well, I don't know about Bangalore. With events like Triggr and these meetups, the culture Delhi and NCR region is evolving into a tight and supportive community. Glad to be in Delhi!
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I thought the question about traffic was good - there will be congestion, with so many people gather in one place.

I'm surprised that Jobs attended - the project must be very important to him personally, and he didn't want the slightest risk of it being derailed.
Perhaps not unconnected to the following
http://www.rediff.com/business/slide-show/slide-show-1-benga...
Sounds like UOH and the court were against it, not the council.
I would like to build something with you too. My email is mephju at gmail com. I can't write you an email because I guess my karma is too low :)
Same here, never been to Banglore. But, ecosystem in Delhi NCR is heating up. I wouldn't want to live in any other city in India.

Hope we could get few nice co-working spaces in Delhi.
Already hacked ? :O really ?
This is what happens when you put your money where your mouth is :P
Your numbers are odd.

I would discount the .c code. Rubinius's native code (excluding third-party code) is largely C++, so better to focus on .cpp and .hpp files.

The .rb count is way higher than what I got. The line counts I got (on master, not hydra):

vm / {cpp,hpp}: 162kloc

kernel / rb: 31kloc

lib / rb: 145kloc

Oddly enough the total ratio is roughly what you came up with, but I'm not sure where your numbers came from.

It's worth noting that the density of .rb source is considerably higher than that of .cpp source; a few lines of .rb can do what might take dozens or hundreds of lines of .cpp. I wouldn't fault them based on LOC; Rubinius is still implemented more in Ruby than any other implementation out there.

Let's say .rb is conservatively worth 10LOC of C++. That puts them at more like 10% "not Ruby", going by the amount of work they get done in each language. Even if you only consider kernel / rb versus vm / {cpp,hpp}, the 10X ratio means they're less than 1/3 "not Ruby". That's pretty good.
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So why you applied for a position at Google? You just want to have such an exprience or you really want to work at Google?
The point of the day is to ensure that enabling AAAAs on the server side does not break the world. clientside IPv6 connectivity is a nice plus, but optional.

A couple of corrections:

1) ULAs are normally not routable over the internet. Though of course blocking them explicitly would not hurt.

2) depending on the RFC3484 configuration on the hosts, this "IPv6" might break connectivity to dualstack sites.

Please - go to tunnelbroker.net (or sixxs.net) and get yourself a tunnel - it is not that difficult, really.
How many people use this stuff in their daily job coding? Does this really matters and matters what?
other than having a good weather, the other problems related to culture, language and connections are too high for someone coming from north. I am not sure if I am much happy sticking to Bangalore for long enough.
You can test clients and servers on a LAN, far more simply than setting up a tunnel.

Anyway, I'm trying to get everyone to test IPv6, and believe me most people are not going to want to set up a tunnel to do this.

Edit: and the "point" of today is to test IPv6 in software. Only a tiny part is to make sure that IPv6 can be routed across the internet-at-large.
Sneaky? It was slimy if you ask me. Their job is to represent the best interest of community. Building this campus may indeed be in the best interest of community. But there is no need for them to wag their tails and squeal at Jobs like they did.

The guy on the left at managed to pretended that he knows why he is there.

But I must admit that I have no clue how I would react after having mind blown like that.
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The best comment i would be able to write was already written below the article itself:

" "a campaign of misinformation against Wikileaks and it’s supporters"

No apostrophe in possessive "its".

We are English teachers.
We are reading what you write.
Expect us.2
Proofread."
Djangocon.eu 2011: Day 1
Taking the author's point of view, one can spot 2 underlying assumptions about the world in today's digerati:

1) The more information we consume, the more likely we are to come up with a useful theory, tool etc. Our brain is designed to process and recombine stimuli and come up with innovative things, so the more combinations we do, the more likely we are to succeed. This is sort of like a darwinian theory of science and technology. There also an anti-specialization trend among geeks.

2) People have an equal opportunity to create new and significant knowledge.

While (1) is debatable, (2) seems to be outright wrong. Some of our greatest scientists, from Newton to Einstein were "lucky" in coming up with great Ideas more than once in their lives. They also had a narrow field of focus, and it's doubtful they could keep up with Twitter today.
Ah, if the intent is to test the clients/server in an isolated LAN - then, yes, ULAs might work.

Though you can as well use the 2001:db8::/32 and later you can also publish your examples readily.

My comment was about any testing that involves the boxes that may want IPv4 or IPv6 connectivity to external world, apologies if I misunderstood.
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I found the hacks for display issues in various clients to be very helpful.

It's increasingly difficult to design HTML email templates which render well across all clients, this usually leads to design for the lowest common denominator. Usually Outlook and Gmail.

I'm sure there are loads of considerations for ISP's with regard to spam and other issues, but forcing design/rendering of HTML to 1990's type style and functionality is rather restrictive.

At some point I hope things will change, but with the popularity of mobile clients growing (and their small screen issues), I suspect if anything it will not.
The Return to Profitability: 2011 Product Innovation Priorities Report