skysight-inc/HackerNews huggingface dataset:
In high-school calculus (if you've taken that), you apply things like "d/dx" which LOOKS like it is just a fraction, dividing "d" by "d times x". The notation was first dreamed up by mathematicians who were thinking "but if we keep making the d-slices really REALLY small we would move from the discrete approximation to the formula for the correct continuous answer".

Unfortunately, while SOME such formulas worked (the ones you learned in calculus - stuff like the chain rule), other formulas generated using the same kind of reasoning ("just imagine that d becomes infinitely small") come up with answers that are nonsensical or just wrong. How can we know when it's OK to just say "let things get infinitely small" and when it gives bogus answers?

The solution, which is taught in high-school calculus, was the "epsilon-delta" formulation. Instead of saying "let d become infinitely small" (a statement that may just be nonsense), say "I will prove that for ANY small epsilon (greater than 0) I can find a delta > 0 such that for values of x closer than delta, the error will be less than epsilon". That statement doesn't require an infinity to exist anywhere -- it is just a statement about particular finite numbers. And we can build calculus on such principles.

This isn't an EXACT analogy to your question about real numbers, but it uses the same type of reasoning, and I'm hoping the analogy is in terms of mathematical reasoning you are already familiar with.
Endurance mini DIY laser engraving and cutting machine
Endurance mini DIY laser engraving and cutting machine

Small, nice, cheap and endurable, cheap Endurance mini DIY laser cutting and engraving machine with 2.1W and 3.5W lasers on board.

https://www.youtube.com/watch?v=j1_itpuYNkE

If you have some suggestions, or if you want to know more,please write to me:

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The trailer didn't look bad in spots. Reminded me of a mix of Hollywood's epic movies set in Egypt and similar of the 50s/60s... the effects were off and on good looking. Still its so odd seeing a "Chinese" movie and everyone is white
No, this doesn't mean that at all. There are lots of other (accountable) structures in energy/angle correlation spectra like this, but it doesn't change the quantum mechanical aspects of it and the randomness in time distributions.
A Harvard student asks, 'Do we trust robots too much?'
And now it isn't?
That and the rather obvious 'sudo' in front of all the commands.

I mean, it's a cool tool; I use it on my NAS (particularly like the ECC mode instead of dumb RAID), but the git-equivalence aspect looks a little bit like a flamebait ;-)
You can't omit the second paragraph when quoting that, it's the punchline:

More importantly, a towel has immense psychological value. For some reason, if a strag (strag: nonhitchhiker) discovers that a hitchhiker has his towel with him, he will automatically assume that he is also in possession of a toothbrush, washcloth, soap, tin of biscuits, flask, compass, map, ball of string, gnat spray, wet-weather gear, space suit etc., etc. Furthermore, the strag will then happily lend the hitchhiker any of these or a dozen other items that the hitchhiker might accidentally have "lost." What the strag will think is that any man who can hitch the length and breadth of the Galaxy, rough it, slum it, struggle against terrible odds, win through and still knows where his towel is, is clearly a man to be reckoned with.
It's good news that they've changed the default PostgreSQL character set (encoding) from ASCII to UTF8 in Ubuntu 16.04. It'll definitely save a good amount of time of new PostgreSQL users who need UTF8 encoding as default.
This is practically hollywood hacking IRL.
Things like this instantly piss me off. Then I remember I use an adblocker and I calm down again.
In any case, they don't come from your kids' work. So you have to go back to arguing for voluntarism (step two of the carousel) rather than desert in order to justify your children enjoying something they didn't work for.

And the problem with that is that it really relies on a "facts on the ground" view on property entitlements. If our laws about property are man-made and supported with force, why shouldn't we change how they can be transferred (or possibly voided in case of death?). You can disagree, and you certainly can fight it, but you can't really morally condemn anyone for trying to take it from you.
Either way, how was the unit worth $7.2 billion in 2013 to anyone? Why did Microsoft pay such ridiculous money for a loss-making business, only to essentially burn it down over the next two years? From April 2014, when the deal was finalized, to May 2016, when the last employees are being laid off, the damage Microsoft incurred from this deal amount to about $1.8 million per HOUR of business. Did they really think they could pull off some magic trick to make Windows Phone fly, or were they bound by some backroom deal to buy the phone business at set price in case it started to weight down on Nokia?
Makes sense. The sooner they cut their losses and focus on cloud/productivity apps the better off they'll be. IMHO
Soon. https://www.youtube.com/watch?v=yelPlCVZLEE
That's cool. Maybe Google doesn't want to dominate, which would be cool too.
It's not so critical as that. Any transactions in flight when you take the snapshot won't be finalized and will be discarded when you start it back up from the snapshot, but that won't affect the consistency of the database.
The APK is downloaded and run on device.
I know I'm hanging out on the right site when a link like this gets promoted to the top spot. : )

A quick note to Hitchhikers Guide to the Galaxy newcomers, your mileage may vary depending on your background. I read all the books when I was a kid, and absolutely loved them. And when the most recent film came out, a bunch of engineer friends and I went to see it. Me and the other British friend howled with laughter throughout, but the two other (from India and Brunei) looked utterly baffled. So, it may, based on this limited sample, play better to those with a British sense of humour...
> I'd bet money Intel releases a high end 8-core around the same time as AMD releases zen so they don't "win" on top end performance (around 20k on that benchmark).

The rumour is the 6950X (the top-of-the-line Broadwell "enthusiast" chip) is going to be a 10-core part. And I suspect most people going for the more-than quad-core parts will take as many cores as they can get.
>I haven't seen a single proposal that does anything to realistically address it.

The solution is trivially simple: build a lot of public housing.

If you have a hard time imagining what any part of that plan might look like, take a look at Singapore: https://en.wikipedia.org/wiki/Public_housing_in_Singapore
> If you mix the pigments, isn't the effect really the same, but on a microscopic level rather than a macroscopic level?

No. It's the difference between colour addition and colour subtraction.

In a colour-addition (ie LCD) model, the maximum possible light transmission - what you get by displaying 'white' - is 33%, since it involves R, G, B side by side, all on. But in a colour-subtraction model (ie e-ink) you just remove all pigment and get 100% light transmission.

Another example: pure yellow. Addition: R, G on full, B off; total light transmission: (33% * 2/3 =) 22%. Subtraction: all yellow pigment, total light transmission: 66%.

Another example: pure red. Addition: R on full, G, B off; total light transmission: (33% * 1/3 =) 11%. Subtraction: yellow and magenta pigment mixed, total light transmission: 33%.

(to be clear, the numbers are waay over-simplified naive colour theory, not actual measurements or anything)
Multitenanted Graphite
Theft by force (or threat of force) is a subset of theft in the more general sense.

Fair enough, but how do you reconcile that with my point (3)? Police returning an item as in the given example means the police are thieves according to your definition.

If not, how do you propose mitigating this conflict?

In the same way as it is done today. Note that I'm not the one who is saying that land ownership is theft - you are, because you are trying so say "taking by (threat of) force is theft".

In reality, what is and isn't theft is defined by social convention. So land ownership, police returning items, and tax aren't theft, even though they all involve (the threat of) force. Taking an item from somebody else's home is theft, even when no force between humans is is involved at all.
Thank you. Looks perfect.
Recently (after a friend being hacked) I changed all my passwords and unsubscribed from as many services as (confortably) possible trying to reduce my 'digital footprint'. After reduction I still have 60 accounts/passwords.. So 100 passwords is very realistic IMO.
More like git-annex and git LFS.

ZFS can be good cms choice for large binary files.
30 minutes seems to be close to the upper bound of someone linking to Betteridge. It's impressive that this thread lasted almost 40.
No. It just means that there are some more events that may occur and may change the probabilities of some events slightly. That is, where before we assumed that decay only occurs through events A and B, with A chosen 45% of the time and B chosen 55% of the time, we now know (assuming all these findings are true) that there are actually B' and B'', chosen 0.001% and 54.999% of the time respectively, which result in the same outcome particle-wise but with take different paths to get there, resulting in different particle properties (momentum, mostly).

For systems using radioactive decay as seed, this should have very little effect, as the involved previously-unknown effects are extremely small and the properties influenced by them are unlikely to be used as a source of randomness anyway.
Is ‘grit’ overrated in explaining student success?
Nexus Player has been discontinued
I recently started carrying around a handkerchief. It's more useful than I would have thought, like a miniature towel.
Time Machine for directories? Directory Versioning using s3git
That doesn't mean much half of the applications you install and run these days are just wrappers for web components where quite often the logic outside of the initialization is not in the app it self.
ZFS doesn't have history in that way; snapshots are far too coarse. HAMMER, for example, is closer to what you want if you're going to replace git with a FS.

https://www.dragonflybsd.org/hammer/
This link (pdf) provides the missing context: https://www.ece.cmu.edu/~ganger/712.fall02/papers/p761-thomp...
Well penetration of WP is down yeah, but that only makes sense when Nokia Lumias immediately disappeared from shops upon announcement of the MS Lumia devices, and when MS did not market or promote those new devices very much. The 950 range was also largely unavailable due to stock levels. So for about two years there you couldn't buy a Lumia even if you wanted to. So it's not surprise that usage went down and that consumers weren't interested.

But my question is what was the corporate strategy? Did they see the success of the Lumia line and wanted control of it? If so, why did they immediately fire people and stop development of new devices?
American schools are teaching our kids how to code all wrong
Ken Thompson gave a lecture called "Reflections on Trusting Trust" [1] in 1984 that outlines a similar attack.

[1] https://www.ece.cmu.edu/~ganger/712.fall02/papers/p761-thomp...
Unfortunately I can't second that. I own an Edge cycling computer with which I'm happy in general, but which already had multiple severe bugs (like simply displaying "memory full" and not resetting itself in a loop) which required either hard resets or even reflashing the firmware to recover. Things which the average consumer might not be able to do.
Result: Towlie from 'South Park' =D
Easy. You keep people employed. The missing point in all of these discussions is the revulsion most people will experience being served by a machine.

I can't wait for one of these restaurants to go all automatic and go bankrupt because people simply stop eating there.
No, because it lets you toggle each pigment between colored and (nearly) transparent. An LCD needs to be colored or opaque.
I've lived in a bunch of US places, including rural Colorado and the Atlanta, Boston and DC metro areas, and I will say that Charlotte is a special case. People here complain about housing costs and traffic, and I just smile quietly.
The other major DAO was Digix, which set a target of $5.5 million and raised it in 14 hours.

They've got a more definite revenue plan: DAO token holders get transaction fees from transfers of the gold-backed tokens Digix plans to issue. For various reasons I don't think this is going to work out very well for Digix DAO holders in the long term, but it's an interesting experiment.
Ok, I'm willing to walk with you at least that far. Now take me on a journey to, "With a kill switch".
You're sarcastic, right? Surely you're aware that when you starve, your participation in the "market" is neither free nor voluntary? Your hand is just being forced.

Pushed little bit further, this could even re-introduce slavery: just give this little bit of "freedom": the right to renounce all freedoms. Surely that's better than starvation, right?
But what about on the mobile apps? I need a content blocker for apps.
Venture capital funding is flowing back to fintech startups
You use things he worked on everyday, one of them is UTF-8. He also designed and implemented UNIX. He was creator of B language, thanks to which we have C language. He also worked on Golang and Plan9.
These types of signals are a very common path that people who look for new forces follow. The phase space to search for deviations in the standard model is very big, so when things like this pop up they offer better avenues of exploration than throwing darts.

Is it a new force? It looks like the type of particle that would explain it hasn't been entirely ruled out from all the global data we have. If other planned experiments that will be sensitive to the same properties of the proposed particle and aren't dependent on nuclear decays do see it, then there you go. If they don't then they don't.
> Do not try to snapshot a running database though. Before you execute the snapshot you should make sure everything is flushed to disk.

Is a database (or anything else) really supposed to behave that way? Shouldn't every state along the way be possible to resume from? In particular, shouldn't database transactions take care of this?
The business case for fighting climate change
Interestingly, I really liked [spoiler] too, but I also hoped that this blog post could be reused in future language fights (and it is a shame that [spoiler] could prevent that). Potentially a revised version of this blog post could be helpful.

Anyway, this link (http://joelgrus.com/2013/12/24/why-programming-language-x-is...) is decent enough for copying and pasting.
When you use VLC, OpenOffice or Firefox, you don't read the documentation. I think that's what OP targets.
This 13.3 inch device which is 300ppi and runs on Android is in pre-release, expected to ship in volume within a month or so. http://www.amazon.com/Onyx-13-3-Android-Flexible-Handwriting...
http://ccdb5fs.kek.jp/cgi-bin/img/allpdf?199007095.
As an American, I think it's worth investing in the necessary background in British culture to appreciate the humor. If you don't, you miss out on Douglas Adams of course, but also the incredible and varied world of panel shows, everything that the alumni of 'Monty Python's Flying Circus' ever touched (Fawlty Towers!!!), and so on.

As a kid, Douglas Adams was my first major introduction to British humor, and questions about "what does that mean exactly?" drove me to learn a lot more about it.
Indeed, the article title, per HN rules, should probably be "A2: Analog Malicious Hardware [pdf]". Maybe with " - undetectable CPU backdoor".
> Get behind the $15 minimum wage. Then the 8 hour day and 40 hour week.

40 hour week? Try 32 (4 days a week). Active workers in the US industry are hardly working more than 30 hours on average anyway (lots of part time workers).

Of course, the minimum wage should be raised accordingly.
Except you'll lose all the data since you created the snapshot... You've been able to do this for years on Linux with LVM anyway.
The Ken Thompson thing is presumably in reference to his popular piece "Reflections on Trusting Trust" (https://www.ece.cmu.edu/~ganger/712.fall02/papers/p761-thomp...)

As the level of program gets lower, these bugs will be harder and harder to detect. A well installed microcode bug will be almost impossible to detect.

And this is even lower - in the hardware itself.

Really fascinating work.
ZFS and other advanced versioned/copy-on-write filesystems are really cool and useful but it's not a source code management tool.

E.g. the examples show branching but not merging.

On the other hand, this might be useful for storing binary large files that are not really diffable and mergeable, and thus a bad fit for Git. However, the typical use case for this is art assets in games, which means that it's the artists and designers who are the target audience. Git is often said to be too difficult for non-programmers, and ZFS or BTRFS is definitely not easier.
I guess RFID-tagged towels[1] is a start...

1. https://www.tnooz.com/article/when-pilfered-hotel-towels-bec...
Mind sharing why AGPL is not a good fit for you ?
Douglas Adams is pretty much the only "celebrity" whose death really touched me.

I am a big fan of his work and thinking about all the books he did not get a chance to write tears me up even now.
Google is increasing ad sizes and frequency because growth is slowing.

http://www.wsj.com/articles/google-to-increase-size-frequenc...
Weekly roundup of Virtual Reality, Augmented Reality news from around the world
Other relevant xkcd: https://xkcd.com/1174/
I think you are right. But I was comparing their English skills to other second language speakers of the same age, who are so much better than them, that the universities realized this and are now (rightfully) trying to benefit of the fact.
> but clearly Ballmer really, really wanted Nokia's phones and Satella really, really doesn't.

you mean Nadella?
I think it's ridiculous that you're being downvoted, it smacks of HN not wanting to admit they're susceptible to upvoting clickbait nonsense.

Just because your post is obvious doesn't mean it's not also the right response to this article.
If I understand this correctly, the search for another fundamental force is attempting to explain dark matter using the standard model? Are there any pools of thought that try to explain the universe without dark matter?

This may not be the right thread to ask this in but it's right enough I suppose.
And in security.

You can change your password as often and as frequently as you like, and you don't wear it for everyone visible over your shoulders.
Feeling Let Down and Left Behind, with Little Hope for Better
Ethereum's designed to allow very effective pruning of old transactions. Details here: https://blog.ethereum.org/2015/06/26/state-tree-pruning/

It's already implemented in one of the independent clients (written in Rust), and they plan to add it to the official client before the storage size gets too unwieldy.

In the long term they also have plans for sharding, so any given node doesn't even have to store the entire current state. That's more of a research problem but they seem to be making progress on it.
Amen. Likely there'd be still a strong Nokia brand producing cutting-edge Android phones and maybe some other would have vanished earlier. Who knows.
I already see plenty of logos on google maps here in Japan (mostly convenience stores), even without searching anything. I guess this news is only regarding results?

http://i.imgur.com/6eGBKN6.png
The thing is, murders of kids by strangers are so extraordinarily rare and horrific that people talk about them for decades afterwards, but that makes them a bad precedent to build your ideas of justice around.

Kids are far more likely to be killed by their parents or step-parents.
Taming the React Setup
What if there's no such a thing as radioactive decay and we've been observing interactions with dark matter all along?
How I designed a practical electric plane for a NASA competition
I'm doubtful that Hacker News would tolerate autoposts. But it would make for an excellent "Show HN" sideproject that somebody can make to boost their coding skills.
This looks like adobe flash all over again. It should not be used when a simple web page will do
It's hard to know what you're finding uninteresting/confusing from your description. Perhaps it would help to note that every possible pairing is given a colour, and in your infinite subset every possible pairing within that subset has the same colour. To me this is quite counter-intuitive.

There is a somewhat enlightening comparison to be made between Ramsey on pairs and the result that every real sequence x_n has a monotonic subsequence. You get this result as a corollary by colouring a pair of natural numbers a<b red if x_a <= x_b and blue otherwise.

Interestingly, the Ramsey theorem can be extended to three, four or any number of colours. I believe you can use this to show that any real sequence has either a convex or concave subsequence, but I'll omit the details :p

There's also a delicate balance between the infinite and finite going on. Clearly, with an infinite number of colours you could get a colouring without a monochromatic subset. More surprisingly perhaps, if you colour the infinite subsets of the natural numbers red or blue, then there exist colourings for which there is no monochromatic subset.
How to style the Google maps popup infowindow
It's not a Ponzi scheme. You simply tax the thing (savings from firing humans) that is increasingly eating the lunch of the other thing (humans being employed), which you want to subsidize, because of a constraint libertarians don't mention (we want all humans to live even if demand for their labor is low).

Here's what you do:

1) Tax the monetary gains made by corporations from greater automation, not enough to disincentivize R&D, but enough to counteract inflation from step #2.

2) Institute an unconditional basic income, like Alaska already does for natural resources. Everyone gets a check in the mail.

You balance #1 and #2 so there is no net inflation. The more corporations lay people off in the aggregate, the more wages will be replaced by UBI.
By "bad science" I meant bad health science and I apologize for not being clear. That also happens to be the department of science most obviously linked to commercial interest! A lot of studies have sponsored outcomes!

"Traditional" varies from population to population and that's a subject for Epigenetics and the fact that it takes 4-6 generations to fully adapt to a new diet.
I first listened to it as an audio-book (the version narrated by Stephen Fry) I highly recommend it, the narration is excellent.

(note: I never listened to the original radio series, that might be even better)
Interesting, but you are talking about the end of the exponential growth dictated Moore's law to quickly become nearly a flat line.

You sound like that guy back in the 1800's who predicted that everything that can be invented has been invented.

It's possible for that to happen, but why do you think it will happen now?
Those are icons, the post is talking about sponsored company logos.