skysight-inc/HackerNews huggingface dataset:
Mods, please add (2013) to the title.

Thanks.
The good thing is that you get a lot of energy density this way. The bad thing is that hydrogen is difficult to store, and you basically have a fuel-air bomb on your hand if anything goes wrong with your tank.
Someone building a processor from discrete transistors
Ditto, in a decade of UI dev I have never actually implemented MVC or used it. A lot of Apple iOS/Mac books claim that Cocoa is MVC, contributing to the confusion and now there's the JavaScript libraries which also claim to be MVC.
They booked me and detained me in a cell for a few hours. They gave a cup of tea though.
Venus has a very thick atmosphere. At the height of a few miles above surface, there are layers with room temperature and human-acceptable pressure. Of course, the atmosphere is still CO₂ with some nasties, so a gas mask is required. But a Star-Wars-esque floating city would be quite manageable there. You can use hydrogen for floating because there's not oxygen around, so no risk of a blast.

NASA is already working on it: http://www.cnet.com/news/nasa-wants-to-build-a-floating-city...
My understanding (from reading the article) is that the single Li-ion battery lasted for a week.

Considering that these are extremely common metals, I can't see why this wouldn't be viable, even with anode/cathode degradation.
The strike price for options you receive two years from now will likely be much higher than the strike today.
Episode 170: Children of the Magenta (Automation Paradox, Pt. 1)
One positive way of looking at this is we can get Jevon's Law to work for us by applying it to renewable energy sources: something that we see right now. As the price of solar energy in the home falls, we'll see increasing adoption, and it will be put to more uses. At some point, it will fall to the point that it becomes attractive to commercial users.

I'm not trying to imply that this will happen automatically, of course. However, there's ample opportunity to get a virtuous cycle of efficiency and increasing demand for renewable energy.
> what he/she thinks about me personally as long as he performs his job well.

Those two things go together most of the time though. Someone who doesn't like you will simply not do as good of a job. People are not robots.
With this efficiency, it could be feasible to just split the water at the point-of-use.

If you have the power source at the point of use, it's still more efficient to just use that for propulsion.

There has to be a way to store the hydrogen for later use.

I'm reminded of the "run your car on water/save fuel" scams which involved "HHO generators"

I used to work with a guy who was convinced that his HHO generator would yield all kinds of increased fuel efficiency on his gas guzzling pickup truck.

He didn't have the background to understand why it's not possible to get more energy out of burning the brown's gas than he used to create it.

While increased efficiency in the splitting of water molecules is a great thing, there's still basic thermodynamics.
After blowing so much of my youth on dust and then dust2, this was a very cool read.
The only disadvantages I can see on a federated service are security and the cost of running it.

Compared to the benefit of not restricting one-self to a platform, I would say federated is better.
I'm guessing this was inspired by IRC eggdrop bots? Seem awfully similar, just different comms mechanism
Redis is an in-memory "data structure server", in that besides simple key-value (think memcached) storage you can also have sets, lists, sorted sets, hashes and more. See redis.io.

This extension adds geo-specific commands and storage to the list of operations supported.
Ask HN: What is the current standard for rendering HTML after page load?
I'm familiar with pre-rendering but this case requires the use of JS variables defined on the front end.

Hopefully one that has no negative effect on SEO, quick to download/render and seamless from the user's perspective.

Any help is greatly appreciated.
Hi dang, this is unrelated (feel free to remove this reply) but it seems that my post at https://news.ycombinator.com/item?id=9774037 has disapeared? Could you look into it?
As a student, I used to see all high valuations of upcoming companies, and think that getting options at a startup is the best strategy for an employee, and one can get a shortcut to be rich. Then, I woke up and realized its not really true 99.9% of the time.
This ("Unpacking Git packfiles") was a CTF challenge a few weeks ago (at the Haxpo CTF in Amsterdam), except we weren't given the original repository, we only got a pcap dump of the traffic. Using `git extract-objects` I was able to unpack them into object files (stored in .git/objects/xx/*) but even these were not readable. Eventually found some zpipe command that did the trick. What a pain to do this with common tooling if you don't have the time to dive into the format and write a real unpacker.
Honest question: is everyone supposed to have a lawyer on standby? Who exactly am I supposed to call if I need one in this kind of emergency situation? Do I just look in a phone book for "lawyers"?
I absolutely love dust but then he also made the sequel cobblestone which was one of the most frustrating maps ever created!
When I read this article, I felt a sharp pain, as it sounded as if it could be directed at our company [1]. Acquiring pricing for local governments through online reverse auctions is what we do.

Your observations are poignant. There is strong incentive to treat everything as a commodity these days. Part of our business is in helping buyers structure their RFQ documents so that the product or service can be competitively sourced. In the government sector, however, we rarely participate in this process.

Governments must purchase based on their state and local laws, which often ties their hands. A local school system may want to purchase better quality chalk for a reasonable premium, but the laws pertaining to procurement frequently prevent them. It's a really bizarre circumstance where public perception of government waste has resulted in laws that eliminate buyers' ability to cut deals that are better for everyone. I'm not saying it's impossible; it's just much easier for a procurement officer at a local government to follow the standard process (which prioritizes price) than it is to fight for quality.

There are pockets of innovation, however. Our eRA platform stands out because we offer the ability to incorporate non-price factors in to our ranking algorithm. This gives a buyer the ability to "weight" one bidder over the others. We developed some of our most advanced features jointly with local governments in Arizona. I'm not sure I should name names, but there are people doing really great work out in Arizona.

We have even considered founding a separate not-for-profit organization whose entire purpose would be to assist local governments in improving their procurement laws so that there would be a better balance of good sourcing practices and the ability to incentivize quality over price where appropriate. That's a huge challenge though. You frequently end up directly opposed to special interests with very deep pockets and a financial incentive to keep procurement laws just as they are.

1: If you're wondering: http://www.eauctionservices.com
It did ok with a leopard print sofa :)
http://www.robots.ox.ac.uk/~szheng/crfasrnndemo/classify_url...

But not so good with this chair:
http://www.robots.ox.ac.uk/~szheng/crfasrnndemo/classify_url...
This is awesome and gives me a chance to extend an editor in Haskell. I'll have to retry extending Yi again and see if they've made it easier than in the past.
Anecdote:

In our company, we recently switched from Jabber to Telegram.

Telegram is easier to use on multiple devices (it synchronized automatically and you don't have to worry that if you leave one device open, you won't get the message elsewhere), has both a usable mobile app and a usable web/desktop app, it has the "private" chat that's much easier to use than OTR (Pidgin, Gadjim and Adium each implement OTR differntly and it never works right cross-client), and, as one co-worker noted, it finally looks like something from 21st century.

TextSecure/Signal/what's the name now has - in addition to confusing branding cross-OS - strange SMS reliance and no working desktop app. I would prefer it to Telegram though, if they had some reliable destop application, but they don't.
Living on Venus won't save you from a future red-giant-phase Sol. Mars may not either, but it's a better bet.
Not really, no.

We're finding water (even liquid water) is actually _really_ common in our solar system (and presumably, in the universe as a whole).

Breathable atmospheres, on the other hand, are pretty rare.
I think lot of these idiosyncrasy stems for arcane SEC rules like 500 investors and restrictions on IPOs. Startups and tech community should lobby to change all these. Why can't we have full fledged public exchange where anyone, any startup can come in and sell its stock with no restrictions at all. If people want to buy in to their vision, sure let them be. Lot of rules around IPO and SEC are placed to protect the general public from fraud and prevent their confidence evaporate from investments. But let's say if you build an exchange called "High Risk Securities Exchange" and let anyone list themselves, publish their stocks and allow anyone buy or trade them as they like then lot of artificial artifacts we see today will be gone. These kind of trading exchanges can live side by side of conventional public exchanges.

One thing we need to understand is that starups most likely won't have money to pay same amount as their established counter parts. All they have is their vision to sell and that means options must remain critical part of their offerings. If IPOs are fizzling and employees don't get rewarded for the risks they took then ultimately existence of startups itself is at risk.
I think you can do it, but you'd probably want to start with density matrices, or use the Heisenberg picture to keep your wavefunction super-simple. If we're talking to geniuses then maybe we can include a one-off statement, 'if det ρ = 0 so ρ = ψ ψ† for some "column vector" ψ, then the squared magnitudes of ψ's components are probabilities to be in that component's corresponding state.' to get the gist of it.
> We should also have public subsidies for nuclear and solar to ensure rapid deployment."

Can you elaborate on the relation between the nuclear energy industry and insurance companies? Even as someone who sympathizes with the goal of "smashing global capitalism," I would find it interesting to know what the free market has to say in this respect.
> With this efficiency, it could be feasible to just split the water at the point-of-use.

Hu? Why? You have electricity, you use it to make hydrogen, then burn the hydrogen and power something?

Why not just use the electricity directly?
Going deeper into Neural Networks
How Educators Can Respond to Charleston
I thought the 80% efficiency metric meant they were successfully converting 80% of the water into gas.

Edit: I guess they mean they are producing enough hydrogen that they could burn that hydrogen (recombine it with water) to generate a constant 1.2v of electricity.

Also, what amperage is required for this to work?
Office on the Mac was called Multiplan in 1984 [1]

Office 1.0 came out November 19, 1990 but Word itself was 1983 [2]

People still used the original VisiCalc in the DOS days. Visicalc itself was an Apple II program [3]

Lotus bought and killed it but botched the transition to Windows, leaving the door open for Excel (ably assisted by the Windows API team no doubt).

[1] http://nl.newsbank.com/nl-search/we/Archives?p_product=AT&p_...

[2] http://toastytech.com/guis/word115.html

[3] https://en.wikipedia.org/wiki/VisiCalc
> Open specifications and federated services. It's called XMPP and if it's not enough, then something better should be developed.

Matrix project is an interesting effort to replace XMPP: http://matrix.org/
Lenovo Thinkpad X1(1st gen) running ubuntu - my god this laptop is gorgeous. Best purchase I've ever made.

Emacs with org-mode for all the writing, notes, organizing information. I absolutely love this editor, makes you 100 times more productive, and also very fun to learn and use.

i3wm - brilliant window manager, after using it for a while it's hard to imagine using anything else.

draw.io - cool tool for drawing diagrams and organizing information. Helps me to think.

pelican - python markdown static website generator. I was looling for a perfect blogging tool for a long time and this is it.

iPad mini with only 4 apps installed:

- Editorial - insanely good text editor. Supports markdown, python scripting with all kinds of extremely convenient automation, looks gorgeous. It blew my mind when I first installed it, after taking most of my notes on android I had no idea a text editor on a tablet can be that freakin good.

- iThought - great mindmapping tool, for thinking and coming up with ideas.

- Track & Share - super convenient habit tracking tool.

- iBooks

Basically I don't use an iPad for anything but writiing, reading and thinking. Don't even use a browser, and it is mostly offline. Perfect distraction-free tool.

Also old second-hand Nexus 7 I bought very cheaply, for watching tv shows, youtube videos, and browsing HN/reddit. It is very helpful to have a device for all the time-wasting activities. Every time I want to do something dumb I use nexus, that way it's not hard to avoid doing pointless things on my Laptop/iPad, which makes them into perfect devices for focus and productivity, and it is always clear whether I'm doing something useful or screwing around.
This has been discussed a lot in the issue thread. Key exchange really isn't the issue.

Scanning a QR code or creating a secure connection between the clients to exchange the keys isn't that hard.
???

It's powered by electricity. Where are you getting that electricity from?
Only if you had current hooked up to it.
... Ireland has less than a fifth of the population density the Netherlands has. They don't particularly strike me as a "jam packed horror".
I think this is the first time in a long time that I see a startup that aims to solve the hiring problem with something other than technology (with people), so my sincere congratulations.

As a CTO of a successful startup, I would sign up as an expert if you were a non-profit in a heartbeat - and I don't mean that you don't charge your clients, just a B corp or something that aims to solve this problem without getting rich. If you are successful and have a solid network that works, you will still prioritize paying clients over non-paying ones, no-matter how hard you try not to. Convince me otherwise?
For the fee of taking half the company, in this situation the VCs:
-- Cut the valuation by %90. If we had been allowed to execute the founders vision (which could have been done bootstrapped) we would have exited close to $300M. (A competitor went that route, they started after us, exited before us for > $300M

-- Set us back by 6-18 months. One of the decisions forced on us by the VCs was to build on top of [another one of their portfolio companies technologies, we'll call it FOO], but FOO didn't have the performance or features we needed. Literally lost at least half a year on the product because of this (And a whole lot of money paid to FOO and their consulting arm.)

-- Forced us to sell before we were ready. When the economy looked like it was turning the VCs needed to raise cash to make their funds look successful, and decided that we weren't going to get 5 years after investment, since they could offload us now for a nice multiple they did so.

It happens this company could have gone without the VC round and bootstrapped its way. If it had done so, it probably would have exited for around $1B, maybe much more given that it was kicking google's ass.
Because when the four years are up, you don't automatically keep getting more options.
What's that medium? Methane?

Edit: You could not possibly be talking about water, could you?

How exactly were you planning on extracting the hydrogen from the water?

No, there's no way you were talking about water, that would be far too stupid. So please tell me what medium you meant.
That's why we should be worried. The ease of using Telegram over any other service is clear and that's why most companies and public institutions are moving their old messaging services to Telegram. Without wanting to say that Telegram's job is easy (it's not), it's too easy to run a centralized service and make it easy to use.

Of course companies should use whatever is most cost effective to run their private communications. But when running a public communication channel restricting to a centralized service should not be an option.
Videos of All the Functional Programming Talks at NDC Oslo
> There are plenty of less glowing stories to tell about tech's top executives: narratives of privilege, excess and incestuous ties to the rest of the power structure

So true of small tech companies at which I've worked. External PR is a rags-to-riches story, the truth however involves mainly being middle/upper class. Even as the company grows, you know you'll never rise anywhere because they won't permit the advancement of anyone who wasn't born in to money or those that didn't attend Oxbridge.
This process still requires electricity to pass between the anode and cathode. It doesn't just magically split water.

To address your hypothetical though... Both would happen. Air pressure is just the weight of the atmosphere above you. If you add more gas to the atmosphere, it would indeed get 'bigger', and would therefore weigh more, resulting in higher air pressure.
> The bad thing is that hydrogen is difficult to store

True, because it's hard to make materials that will hold it. It tends to damage metal and leak through other things.

> and you basically have a fuel-air bomb on your hand if anything goes wrong with your tank.

No you do not, there is no air in your tank. Hydrogen is much safer than gasoline, if released it rises up in the air almost instantly. So a hydrogen fire would put itself out pretty quickly, and would not burn much that is around it.
A red-giant Sol might be.
Usually, the problem is the opposite. A 30MM acquisition is a limping outcome for a VC. Usually, the problem is that the team wants to sell, so that equity will be worth something, and VC wants the company to shoot the moon, because a 1.5x outcome doesn't move the dials, and the model is that the 10x's pay for the 0x's.

There's not a lot you can do as an employee about mismanagement that results in crappy outcomes. But it's an orthogonal concern to how equity is allocated. The commenter upthread was right when they said: part of your job as an employee is to pick the right company to work for.
I'm not sure which is better
Exactly, because if it was a purely functional language, they would have started the project, worked on it for a week, blog about it and said purely functional language for a year, then throw it away.
Don't be silly. Putting in 3 million and taking 15 million out in 2-3 years is not a "loss after banking fees".

VCs can want $100M or $1B, but it was the VCs that chose to sell this company for $30M when it could have been $300B

Here's the ground truth: VCs are idiots. Yes, that one too.

They have money, though, so people pretend otherwise.
Yes, it really took them quite some time to make this a compile-time diagnostic. But before you could've used the static analyzer (/analyze). However GCC's format attribute doesn't work with wide character functions (which is important on Windows) and the produced diagnostic doesn't suggest a correction.
The telegram client is open source. But the server side isn't. At least that's what i gathered last time I read about it.
Maybe? The article was actually a little unclear on that. They may not have been able to run the experiment longer than a week. The only comparison they provide is the conventional catalyst which degraded significantly within 30 hours of operation.
Trapped in the Virtual Classroom
Yes, this process requires so little electricity that it can be powered by scrap solar panels. I've got 2 at home that provide 1.5v each. TFA hasn't provided other details, such as required amperage.
"People like me"? I think you're reading way into my comment. I don't care what you do with your money, it's yours.

Gambling is defined as "an enterprise undertaken or attempted with a risk of loss and a chance of profit or success." That's exactly what people do when they buy a stock or invest in a start-up. They just go to sites like E-trade and Schwab to do it rather than PokerStars. Unless you know of some risk-free stock where chance is not a factor (I'm all ears).
Better than expected! http://i.imgur.com/zsNXxzx.jpg
Me and 2 friends decided to get rid of WhatsApp. We told our friends to get Telegram and left the group chats altogether. They joined Telegram that same day.

I guess it's not that simple when you're alone, but getting people to switch with a few people is fairly simple.
That doesn't make much sense. How are you going to make H2 inside a car? You need lots of electricity. Why not just have an electric motor?
I got to know the Matrix project on the last FOSDEM and it definitely seemed a step on the right direction.

I guess then it's all a matter of waiting for it to happen.
Symphony: Fixing Email, Collaboration and Social Networking
No, it is not a good time. It will be a huge mistake. There will be not much VC money after 6-12 months and you will most likely end up in a time frame where big companies start laying off people. Good luck! Please read more on HN about stress and boom related posts.
Might this have value as a desalinator/purifier? Hydrolyze some dirty/salty water, then immediately recombine it in a fuel cell to produce some power and fresh water.
Ahh I see, excellent answer, very informative. Thanks for taking the time to help :)
Hopefully our robot surgeons and anesthesiologists won't be programmed to be such horrible assholes.
Yeah but in order to manufacture that computer and projector you needed vast amounts of energy, water, minerals, plastics, rare earths, compounds that don't exist naturally in our planet, pollution disposal, such as heavy metal contamination & arsenic compounds, waste acid, strong bases.

In fact the cost things like PECVD or dry etching is so disproportionate compared to drilling a hole in the ground, that I'm willing to bet a computer is the equivalent of hundreds of years worth of a blackboard with chalk.
Here's the ground truth: if you build a company with someone else's money, they're going to get a huge chunk of the upside, and the original management is going to retain control only as long as they hit their numbers.

Hopefully, nobody is saying employees shouldn't be wary of VC funded companies. They definitely should.
How do you think the IPCC gets funded? Do you honestly think they would publish a report that bites the hand that feeds them? We need more independent studies.

If this were a big corporation funding a study on Climate change and it didn't fit the narrative, this is exactly what you would be saying.

When Money and Politics gets involved, the facts get muddied and hidden.
Looks like you're based in SF. Do you primarily work with West coast based companies? Because I love where I live right now (unwilling to relocate atm), and that limits my options quite a bit.
The biggest downward ticks to my personal net worth have been due to me relying on skills that I dont exercise often. Over time I have calibrated my judgement to mark the value of infrequently exercised skills to zero even though I might think I am a natural at them.
What I find amusing is that there are a whole ton of disaster scenarios for Earth that still leave Earth in a more hospitable condition than Mars.