skysight-inc/HackerNews huggingface dataset:
> You simply are not even reading.

And your evidence is that I quoted everything that I replied to, word for word, and quoted from the original NASA project documents as well?

> Nobody said anything about maintaining any steady state.

I did, and so did NASA. You missed its significance. Pulsed systems have an average power level, and a peak power level. Both need to be analyzed.

> That's needed for a generator.

Yes, and NASA wants a net generator of energy, something better than break-even, otherwise it's not worth doing. And they say this in their documents about the project.

> This project is talking about doing one off detonations.

I can't believe you missed the significance of NASA'a remarks about break-even. Don't you understand that, pulsed or not, break-even still has a meaning, and if they can't get to break-even, the project makes no sense?

A steady state generator either does or doesn't achieve break-even. A generator that consists of a series of pulses also does or doesn't achieve break-even. Here's what NASA has to say about this:

http://www.nasa.gov/directorates/spacetech/niac/2012_phaseII...

Quote: "A subscale, laboratory liner compression test facility will be assembled with sufficient liner kinetic energy (~ 0.5 MJ) to reach fusion breakeven conditions."

I can't believe NASA thinks break-even is an essential program goal. Maybe they should hire you as a consultant, so they won't waste taxpayer dollars trying for break-even, after all, according to you, because the output is pulsed, break-even has no meaning.

> But maintaining a steady reaction is not what this project proposes doing.

You very clearly do not understand the relationship between peak and average power. The device being described generates a series of pulses, but for there to be a point to the exercise, the average output power must exceed break-even.

A radar has a peak output power of two megawatts and a steady-state input power of ten watts. Does the radar violate the principle of energy conservation? Yes or no?

A fusion reactor has a peak output power of two megawatts and requires an average plasma sustaining power of 200 KW. Such a generator either does or does not achieve break-even over time, and as quoted above, NASA cares very much which is so.

> But maintaining a steady reaction is not what this project proposes doing.

You need to learn the relationship between peak and average power. Stop embarrassing yourself.

http://www.radartutorial.eu/18.explanations/ex28.en.html

http://hank.uoregon.edu/experiments/modelocked-fiberlaser/20...

> Do you get it yet?

You have managed to miss every key fact about this project.
What's good for porno is good for business.
Oh, I don't think it'd be too rough, but we were worried about encountering other boats at night etc
you did very well.
mtgox doesn't deserve to the first and probably not even the second largest exchange.
hmm. what about it makes it more risk than arbitrary domains?

I'm assuming we're talking about things like:

http://search/

http://weather/
Not necessarily. They might have bought to hold - expecting BTC to be worth more in a year. Not caring about day-to-day fluctuations.

That will depend on fundamentals - is it being used as a trading currency or store of value currency by millions of people for a long period, or not?
Why Ron Johnson Couldn’t Save JCPenney
I imagine sharing your IBAN or local equivalent does not imply any significantly larger danger than sharing your bitcoin address, am i missing something?
Same here, I bought mine 3.5 years ago and it still seems perfectly fast.

I did a speed comparison against someone who bought their's recently, and their's was only marginally faster.
Bitcoin Mining Hardware + Discussion
I've been looking at Bitcoin in the past few days (haven't we all?) and wanted to open a discussion with some HN members on hardware, mining, and all the other fun stuff - exchanges and "bubbles" aside...

You have two key players in the bitcoin mining ASIC hardware space - Avalon and BFL - and they're both sold out of multiple "batches" of products.

I get the hype - people want to mine as many bitcoins as possible hoping that they actually have real-world monetary value one day.

But isn't the real money in this business in ASIC-based processor mining hardware? (At least, at the moment)

How difficult is to build these ASIC boxes?

As far as I can tell, the more people mining Bitcoin (with mining pools, GPUs, CPUs, etc.) the more complex the hashes become. So clearly, a few things will happen:

1) CPUs and GPUs will become obsolete (if not already) in mining bitcoins. Primarily because they would be incapable of producing enough Bitcoins in an efficient manner (due to the amount of power required for mining among other things)

2) ASIC boxes will rule - but the more ASIC boxes out there - the more difficult the hashes become and the more power it takes to successfully mine the coins.

I'm not sure if Bitcoin will have real-world value in comparison to paper currency (although maybe it already does considering Namecheap accepts bitcoin).

And certainly the best ways to get bitcoins are mining them - and it appears that ASIC hardware boxes are the way to do this.

I wonder how many players will be born in the ASIC bitcoin hardware market?

What are some thoughts on ASIC hardware, the bitcoin bubble, where this thing goes in the next 6-12-18-24 months, and just a general hacker discussion on this insanity...
Google Docs version here: https://docs.google.com/spreadsheet/ccc?key=0AkJVUDhVuAHldE1...

Excel version available by emailing the author
Personal achievement stories pretty much always have good comments here for some reason - people share their stories etc. Sometimes it seems like this bit of the Internet isn't like rest.
Of course this has nothing to do with post-pc devices. It's obviously Microsoft's fault that Apple's Mac sales declined as well, for the first time in ages.
And the winner is ....!!!
I get they're hinting at using Google Glass for filming porn, but lets face it, no pair of glasses will ever produce high definition video as good as an actual camera. Maybe for amateur porn, but I'm sure amateur porn is probably being shot on mobile phones at the moment anyway. I'd take a Canon 7D for filming video over any pair of glasses any day of the week. Would a pair of glasses like Google Glass even have the capability to shoot long duration high definition video? Battery life, bandwidth and storage would be massive issues to overcome, you've seen what HD recording does to a mobile phone battery.

Google Glass will change how we access content on the go. The ability to look at a sign in another language and have it translated into your native language, now that's the kind of change I could get behind.

The one thing I worry about advances like Google Glass changing is child pornography. I believe devices like Google Glass will make it easier for creeps to secretly film children in shopping centres and parks, the beach or wherever. As someone who is planning on having children soon, that thought scares me.
Paracetamol and ibuprofen required? Are you waking up at night with raging ankle pain?
Why Chemotherapy That Costs $70,000 in the U.S. Costs $2,500 in India
NameCheap has been excellent. Moved over following the wake of the SOPA fiasco. No regrets. In fact, the move should have been sooner. Their service is far the superior.
It’s Public 77% of Java Users Are Operating Defunct Versions
Despite the recent outrage regarding the exploited vulnerabilities in Java, several organizations are still running on the outdated version of the platform. A survey conducted by web security firm Websense revealed that organizations across industry verticals are still using older versions of Java in their back-end, some of which are weeks, months or even years outdated.
What a great use of attention. Someone needs to integrate this with anki.

Although making sentences relevant to the learner is also a big part of language learning, and the FB part does help there. It's almost killing two birds with one stone.
Cool HTML Tag and Attribute Online Stripper / Sanitizer
How entrepreneurs really succeed.
There was a DDoS, as there has been an on going one for quite a while now and you can find so on the mtgox website news section.

However it was not a DDoS in the classical sense that brought mtgox down to its knees but nonetheless a DDoS has occured.

mtgox supports a weird feature whereby you're allowed to enter any buy or sell order even if you don't have funds.
This means that whenever the prices matches your order the system needs to check whether you actually can with your balance fill that position.

Via the api, it is possible to put tiny transaction even smaller amounts than what you're allowed via the webgui.

It doesn't take much review of the ask and bid to find out that there were a huge a mount of micro tiny transactions all over the place. Those are in an ever higher volume when system begins lagging furiously and people panic.

These are perhaps HFT, or maybe not, but those are the source of the lag and therefore the source of the panic.

This is DDoSing and it's also mtgox fault for having a a toy exchange and us bitcoiners for using it.

I long ago moved to bitstamp. You can find your local exchange i'm sure.
I moved to Bitcoin-24 (https://bitcoin-24.com/ - mainly EUR), they seem pretty popular and have no fees for trading.
To have any bargaining power you need either unions or open salary information.

We have neither. That's why it was so easy for someone without scrupulous like jobs to drive salaries to wherever he wanted.
Reinforced

There are multiple cues to the same information. Everything has both a symbol and spatial element, for all kinds of thinkers.

That doesn't strike me as a positive, really. I look at it thinking I must be missing something, especially witht he above, below and C symbols.

Quite a lot of musicians have their own 'private' notation and I'm no exception, I have shorthand for ideas that go in my notebook and which would make little sense to anyone else. Traditional notation is pretty awful in a lot of ways, but I'm afraid I don't see any real improvements here - it's still uninformative rhythmically, and still promotes chromaticism over scale degree.

I really can't see what the benefit is. Although I don't like traditional notation and can't sight read, at least it's consistent and reasonably easy to learn. This is no worse, but it's not so much better that it's going to cause any significant number of people to switch. People who play acoustic instruments that need to sight read will still need to be able to do so with traditional notation so I am having trouble seeing how this will get traction in that market. Guitarists already have tab as an alternative, drummers have drum grids, and electronic musicians use piano rolls or things like hex maps, to the extent that they use written notation at all.
> Actually hydrogen bombs don't use conventional explosives. They use fission.

Sort of, but because the fission trigger requires conventional explosives, one could argue that conventional explosives play a key role.

In temporal sequence:

1. Conventional explosives compress the fission core.

2. At maximum compression, a special neutron source releases a burst of neutrons to start nuclear fission.

3. The fission trigger delivers a huge pulse of energy to the mixed hydrogen isotope / fission secondary, compressing and heating it.

4. The secondary begins to fuse, releasing much more energy than the fission trigger could produce on its own.

The above is somewhat oversimplified:

http://en.wikipedia.org/wiki/Thermonuclear_weapon

It's our weak imitation of a star.
Ambrosia Software employees report layoffs, but company says it's in business
I can't believe I forgot about floppies and monitor hsync frequencies. Those were dark times.
Sometimes I skate from work to home and back in the morning, it's 10km and it takes a bit more than an hour.

It's slightly longer but much funnier than subway.

How would you call a scateboard with steering pole? That's what I use.
> Github would probably not have succeeded had git's command line interface been better? What rubbish.

Indeed. Except that it's your words, not mine.

I wrote: "Github mainly succeeded because of the various shortcomings in Gits command line interface."

The message, which apparently needs to be spelled out is that using a repo through a command line is a hard thing to do for many developers nowadays who think the command line is something for people with long beards. By putting a friendly face - and a web based face no less - on a really nice open source distributed repository tool github did exactly that which you need to do to gain mass adoption:

Make something people need easy to use and do it in a way they can afford. Then iterate like crazy to dig out a defensible moat around the basic core.

Github blew the doors of the competition including some corporate heavyweights by capitalizing on Git and the trend of collaboration in software development. If they had had to develop git from scratch, if git would have come with a web based front end or if an established competitor (say sourceforge) would have adopted git earlier or (when git was still just for open source nerds and SVN, mercurial or some other repo system used more for corporate) they would have had a much harder time of it.

History happened the way it did for a reason and git being very powerful but somewhat harder to use gave github an opening that they used to create a spectacular success.

Opportunities arise all the time, how you make use of them is what matters and without git as it was there would be no github today.

But why would I rephrase what the git guys said so eloquently on their first homepage:

"git repository hosting
no longer a pain in the ass"

And:

"GitHub is the easiest (and prettiest) way to participate in that collaboration: fork projects, send pull requests, monitor development, all with ease. "

http://web.archive.org/web/20080514210148/http://github.com/
Vulnerabilities in aircraft systems allow remote airplane hijacking
This brings a whole new meaning to the term: rockstar developer.
As far as I can tell, consumer disk prices for >= 2TB drives are still higher than they were before the 2011 Thailand floods.
advantage over what? a GoPro?

in terms of Glass as a tiny camera, that technology already exists and has for a long time.
All major search engines support https, which will become the norm eventually and not empower Google (or another redirector) to sniff packets.
"It's pretty hard to argue with the data."

Would be nice if there were any actual data in this article.
It's almost too good to be true. How can this $274 box[1] make $60 a day[2]? Why don't the guys making them just plug them in?

https://products.butterflylabs.com/homepage/5-gh-s-bitcoin-m...

http://www.alloscomp.com/bitcoin/calculator
1) They can't do it all the time

2) Some of the times they can do it, they do it when they control both the caller and the callee. In that case you can violate the ABI to your heart's content.

3) I don't really see TCE as an issue in Rust, since they seem to be going the RAII route and, as others have commented, RAII and TCE don't play well together (for the same reason a call at the end of a dynamic binding can't be TCE'd in common-lisp).
When it comes to food from china, it always reminds me of exploding watermelons due to excessive use of fertilizer:
http://www.bbc.co.uk/news/world-asia-pacific-13421374
The difference is academic. There still has to be a database that runs queries even if Meteor prefer to think of it as a subscription. The reason I used "big data" in quotes is because 100k rows isn't really that big. Most other web frameworks has no problem dealing with it, but with Meteor it's almost impossible.
Sadly, this is probably the best use-case-scenario yet for Google glass.

On a sidenote, the porn industry originally chose HD-DVD, not Blu-ray.
Perhaps I'm misunderstanding Google Glass myself, but doesn't the camera inside Glass capture a rather wide field of view? The Google Glass videos show that you can share your point of view with other people. The article is talking about filming this point of view, not to augment the porn actor/actress's experience during production.
SSH an ill-managed mess says SSH author Tatu Ylonen
So can I use this? If so, where do I download it? I connected to their site with Facebook but I see nothing about a lock screen.
Thank you for sharing the original story. In other news, definitely buying a skateboard next payday!
Substituting the postal service with private carrier services, the point still stands. People just not expect their correspondence to be peeked into, no matter how technically easy is that.

When you have a conversation in a busy mall, you have no expectation of privacy. When you communicate one on one in confines of private apartment, your speech isn't meant for others to be heard, even if that would be laughably easy to eavesdrop for a government agency.

It's not really a technicality we are arguing about but very basic expectations from a communication medium. If I write an email to my wife I don't expect it to be exposed to arbitrary strangers, although I understand that it's not as secure media as say diplomatic cables cough.
How is the typical person supposed to know that there are thousands of spammy backlinks to a site? As far as I know, Google doesn't provide any tools to discover this information. There is, of course, Google Webmasters Tools, but that would only apply after you have purchased the domain. It wouldn't do any good in this case.
Godaddy is far from being simple to use. And cheap... no, especially when it comes to renewing. I would never go there again.

I do recommend Badger.com - simple and honest. Also, a ton of other good services around. Just avoid Godaddy.
Are you speaking about an api or a url pattern after the response has been received from a uri:search? I believe such information would be set by the responding search server.

Also, if this thing kicks off in a good way, there is no reason why internal corporate networks shouldn't start supporting the same api/url as the internet standard.
At least in the US, you are also required to take dollars for discharging debt; you could refuse bitcoin if you wanted to, but not cash.
And I thought it was bad treading on a rat kidney the cat left on the floor last night (not one other bit has been found yet). Damn space turns, that's unpleasant.
I didn't mean in terms of numbers. Of course more people use Google, but lets not underestimate the impact Github has had and will continue to have. If you're a developer, Github has essentially become a requirement to have, it's a developers resume. If it weren't for Github the numerous open source contributions I've made as well as projects I've open sourced myself wouldn't have come to fruition, and while my contributions are small in the greater scheme of things, you never know, one commit might make all the difference between a good web application and a great web application.
when I link GitHub and then click 'setup sync', I get sent to a URL on old.kippt.com which results in an SSL error, since the cert presented is for *.herokuapp.com.

edit: obviously happens with anything that lands on old.kippt.com :)
> Imagine: There is an emergency operation. Patient is laying at the table and the surgeon could really use a specialist's help pronto. What better views can we imagine than the actual eyes of the surgeon? (Saving Lives)

BMW introduced a kind of similar concept years ago http://www.youtube.com/watch?feature=player_embedded&v=P... it's actually an augumented instruction set, but I guess it could as well be used for human consultation when needed.
Gartner: Apple should quit hardware business
Why do you say so? https and certificates will still be around.
Yes, in the way your snail mail is exposed to postal trucks, mail handling agents and office clerks.
Oculus rift?
I lost it at making a symbol to represent a note letter -- a terrible idea. Ex. D for Dot.

One thing to understand about music is that the letters are meaningless, as learning by letters restricts you to playing in a certain fashion. For some reason letters got introduced, I don't know why, but all that matters is the distance between notes.

Not learning letters first allowed me to easily transpose into any key since the LETTER DIDN'T MATTER.

Cool idea, but has some serious limitations in real music, the obvious one being transposition.
Just imagine - What if Apple followed this Gartner 'Advice' from 2006 :)
You're not misunderstanding. The field of view I am referring to is for viewing not recording, I should have probably made that more clear. Of course some will try and view porn on Google Glass, heck if you could view porn on a calculator I'm sure some people would try. As for filming I list a few questions in regards to quality, space and bandwidth. Will it seriously be possible to record a high definition long-duration POV porn movie on Google Glass? It doesn't sound plausible to me, not in high definition anyway.
Because the guys making them are making more money selling the boxes. BitCoins have no value, really. So it makes sense. People doing whatever they can do get their hands on BitCoin mining hardware is the play for these guys.
I think it's that a lot of people upgrade their OS when they get a new PC. So having a new OS is part of the appeal.

If Windows 8 is seen as worse or no better than Win7 , why bother upgrading?
written and spoken are quite different at the point of understanding, but mastering written language implies understanding grammar and vocabulary, and that does help with speak too (modulo tolerable pronounciation).

What I mean is, in an absolutely personal opinion/experience:

I still have big troubles understanding spoken hungarian in contrast to written, although pronunciation matches written almost 1:1 I just can't tell the difference between ü u ú Ű) etc.. but at least I can sort of express myself, even if I do it by mispronouncing most words.

So, written does not imply spoken, but it does help.
The original title has been updated with "...but company says it's still in business". We should probably update it here as well.
> What happened to the FDA's mission to protect the consumer? Why aren't rice imports tested for heavy metals?

You can thank Republicans, specifically the Bush administration, for neutering the FDA and the USDA.

Apparently profit is more important than whether or not Americans are consuming poison in their food.
The main speed increases as of late have been in CPUs adding more cores, most apps people use don't take advantage of all the available threads. Here I have a top of the line i7 3770k, a Samsung 840 Pro SSD, 16GB of RAM and Firefox will freeze up maxing out on 11% CPU usage and 3.5GB of RAM. I do use some apps that take more advantage of my hardware but most of the time all that horse power does me zero good.

Most computers nowadays have more horse power than most people need for all their common task, upgrading offers little to no advantage for most and as such is a waste of dwindling disposable income.
What Is Tail Call Optimization?
You seem to use words like "multiprocessing" and "multithreaded" without knowing what they actually mean. A multiprocess Firefox in the way envisioned by the original Electrolysis project would be a huge undertaking, and would break all add-ons.

Anyway, The project has recently been "rebooted", so to speak, and it looks like we can finally make it happen without breaking add-ons, which is great!