skysight-inc/HackerNews huggingface dataset:
As far as we can tell. Pex is just polyethylene or (C2h4)n - there is nothing about that chemical formula to be particularly concerned about. It doesn't leach anything - when pure water is desired it the most common pipe to specify as it is cheap and works well (glass is better but that is mostly because glass does not allow air to through to dissolve in your water - and obviously more expensive)

The alternative is copper and cPVC. cPVP is just another plastic. Copper leaches copper into your water (though not harmful for most purposes), and is attacked by common water ph to corrode and ultimately break requiring replacement (though this takes about a lifetime). Copper is more expensive - 10 feet of copper pipe will cost as much as 100 feet of pex, and you have to join the copper every 10 feet: more expensive labor.

The claimed worry is impurities from manufacturing exposes workers to them when the pipes are first turned on. Note that there is no particular reason to believe those objections do not apply to approved pipes. My opinion is they don't like the idea of pex because it is less labor which means less money for them.

I personally use pex for all my plumbing in my house. It is cheap, quick and easy.
Ask HN: How do you deal with jealousy?
Some background - I am a mid career full stack engineer. Several of my friends work for Goog/FB etc pulling in close to 200K-250K base, while several others have risen to director level positions elsewhere. I still slog it out as a senior engineer making 150K in a startup. I've interviewed at some of the big techie brands, but did not get an offer. While I'm happy for my friends, sometimes I still cant help feeling jealous and a loser. Why them and not me ?

Wonder how you guys deal with such situations.
Bah Humbug!

Many academic fields, notably including astronomy and physics, have been doing heavy duty software development and data analysis for many decades, long before the current "data science" hype.

Chuck Moore developed FORTH in 1968 (yes 1968) for controlling radio telescopes: https://en.wikipedia.org/wiki/Charles_H._Moore

Astronomers developed a widely used interactive scripting language/tool for astronomy data analysis known as IDL in 1977 long before vanilla Python was created, let alone recent add-ons such as NumPy, SciPy, etc. Python is playing catch up.

https://en.wikipedia.org/wiki/IDL_(programming_language)

The Hubble Space Telescope was launched in the 1980s and has been using Python for over 10 years: http://www.fperez.org/py4science/2009_guido_ucb/perry_STScI4...

http://www.stsci.edu/institute/software_hardware/pyraf/stsci...

Perry Greenfield - The Development and Future of Python at STScI
https://youtu.be/R_UcjjUC8bE

Only a few of many examples of software development and data analysis in astronomy specifically.

The market leading data analysis tool SAS derived from academic agricultural research in the 1970s. Ronald Fisher developed many of his still relevant techniques for agricultural projects at the Rothamstead Research (https://en.wikipedia.org/wiki/Rothamsted_Research)

The second biggest data analysis tool SPSS is short for Statistics Package for Social Sciences, also came out of academic research ... in social sciences in the 1970s.

Mathworks MATLAB is derived from numerical and statistical software developed for physics research at the Argonne National Laboratory. https://www.mathworks.com/company/newsletters/articles/the-o...

Mathematica has its roots in Stephen Wolfram's work on SMP as a graduate student in high energy physics (particle physics) at Caltech. http://www.stephenwolfram.com/publications/smp-symbolic-mani...
It's great that only 5 actors control a majority of the value LMAO. Even Gnosis handled their roll-out more gracefully than the BAT team.
The effect of missing out on an upside is a lot less than taking a huge hit on the downside. It isn't discriminatory, it's protective.

It is sad but many people would put their entire savings and next months rent into a risky investment that is not publicly traded on a regulated market and basically lose their money most of the time because they invest on hype and because their buddy told them.

If an accredited investor loses his money, the nobody feels bad because they had the money in the first place and the means to either hire somebody who knows what they're doing or be responsible themselves.

I'd be fine with zero regulation on it all together, as long as I, as a tax payer, don't have to bail out all the idiots will fall for ponzi scheme after ponzi scheme. But do we let them dye on the streets because they lost everything? Hence why the regulation is in place.

You are also assuming that being an accredited investor gives you access to better investments, which is not entirely true. Many accredited investors lose their lunch on investments. Look at the number of hedge funds that beat a market index fund, it's like 10%. Or look at VC firms where 1 investment makes up for the loss of 10 others. Many never do get that return and just lose money until they're out. The best investment definition varies widely, and in actuality, most accredited investors would be better off just investing in an index fund because believe it or not, they don't know what they are doing most of the time either. Which is why many investments are high risk. So a test would not help either.
It's in the Wikipedia entry, even. https://en.wikipedia.org/wiki/Galois/Counter_Mode

GCM = CTR + GMAC

If you're, elsewhere, using GMAC for some reason and getting a different result when you combine it with CTR mode: Well, that's weird. I'd have to have two implementations to compare to analyze further. But otherwise, this conversation is moot.
Export filtered/pivoted result to CSV/TSV:

- a very important use case for my team in support of business users who are comfortable in Excel which cannot manage large (>1M rows) files. Tad is useful even with 10M+ rows, a user can import, review datafile and filter/pivot to desired subset. The next step for them would be exporting and creating formatted tables or charts for analysis/reporting documents.
Your answer would be correct, at least in my experience... the amount of times my DARPA RFP's have been shot down by some minor box that didn't get ticked in the RFP process is a bit absurd. We even had a dedicated contract officer who used to work there to help with the process.
Wow, cool, 30 minutes and two comments in and we're already tearing each others' throats out. God, I love the Internet.
And I think all of us here love hacker movies.

Sneakers, Hackers, Swordfish, etc. :)
There is a line to be walked. Having a gun that never runs out of bullets doesn't fly in most movies, even if they'll fudge exactly how many are fired before a reload. This is due to the general public's level of knowledge on the topic.

It used to be very annoying to watch certain parts of movies when I was younger. Computers and the internet were treated so haphazardly, it was cause for celebration whenever a contemporary computer interface was shown that wasn't entirely bullshit. This isn't relegated to just these topics, I assume there's a wide swath of annoying Hollywood misrepresentations on topics where there's a sizable subculture, and interest enough to sometimes be included in popular media, but with enough obscurity to the general public that Hollywood can basically make up whatever they want about it and most people won't know any better. For example, I imagine a good majority of car chases and slides around turns probably look like crap to stunt and race drivers, professional and amateur.

The effects of this range fro harmless to possibly shifting popular consensus in harmful directions (I could argue that a lot of early fear regarding the internet was misplaced, and the expectations of the public were so off that it may have retarded some basic security awareness for some time).

The annoying part is that all too often it's just a small matter of knowledge that keeps the representation from matching reality, and the only thing that stopped it from happening was a lack of care on the director's part for the subject they were representing. That's what the real shame is, because how hard is it for a director to get someone to sit in and consult on those topics?
Here's the preprint of the article in Phys. Rev. Lett. that this is a press release for. Note that it's been on arXiv for almost a year now.
Also note PRLs are brief and not very detailed, so it should be readable for physicists not working in this particular field.

https://arxiv.org/abs/1607.04217

Edit, TL;DR:

Yaida found that for mean-field models of spins with quenched impurities in an
external magnetic field, in three dimensions, the renormalization group flow admits a fixed point at the two-loop level of calculation. It was long known that a fixed point exists in dimensions d > 6, but earlier one-loop calculations didn't find one for d=3, so it was thought that the nice results from these mean-field models had no physical relevance. This new result indicates that we can indeed use these models to understand physical disordered systems.
The problem is there are desires for which there are no compatible solutions. One group desires to oppress another; those are the common issues we're polarized on. The right desires to oppress minority groups and the left refuses, there is no solution to this problem the right will accept as oppression is their goal. Conversely, the new extreme regressive left wants to oppress all who simply disagree with them in word; they oppose free speech, there is no solution here either.

When two cultures cannot agree, the only real solution is to segregate them, the US is too big, it needs to break down into several smaller countries where different cultures can go their own direction.
AFAIK, they can't for the first 12 months after the ICO sale (which happened a couple of weeks ago).
Yeah, this is also something that can be set using Transmit (my OS X GUI of choice). I guess I assumed that, given the size of the data they have to manage, they have something more sophisticated than file-management-by-click-and-drag but...maybe I'm giving them too much credit in terms of dev ops.
The US is doing a lot of building. Not as much as China, but more than enough to be good at it.
The search allows for filtering by licenses.

Not all content is reusable, for instance the Art Nouveau Posters [1] has :

Free Reuse 62 cc-0, pub domain, cc-by
Limited Reuse 142 cc-by-nc-nd, cc-by-bc-sa
No Reuse 64 in copyright

[1] http://www.europeana.eu/portal/en/collections/art?q=posters+...
> But I’ve always thought that the major advantage of using deep learning over simpler models is that if you have a massive amount of data you can fit a massive number of parameters.

The major advantage of deep learning is not that it works better on more data. It's that it automatically learns features that would otherwise take expert humans a lot of time and energy to figure out and hardcode into the system.
The main issue is that the VC dimension of a deep network is very high (iirc it grows proportionally to the number of edges of the network, which grows combinatorically with its depth), and for any dataset smaller than that the network can just learn the dataset and achieve 100% accuracy. However regularizing the network usually solves that problem.
Whilst you could deploy k8s to a single node, it's massive overkill for that kind of solution.

The benefit I see in it is orchestration of large clusters of containers. The offset against that benefit is that there's quite a lot of complexity involved.

For single node solutions, if you want to use containers at all, I'd just use docker.
From the FAQ:

> What do BATs represent?

> BATs are tokens in a new Blockchain and attention-based digital advertising platform.
They are not refundable, nor are they securities or for speculation. There is no promise
of future performance. There is no suggestion or promise that BAT has or will hold a
particular value. BATs give no rights in the company and do not represent participation
in the company. BATs are sold as a functional good. Any value received by company
may be spent without conditions. BATs are meant only for experts in cryptographic
tokens and blockchain-based software systems.
Massive HDFS Data Exposure
Or: "How to come up with a political ideology that better matches peoples' desires and beliefs," maybe?
>an overbought token market fueled by Asian countries for the most part

Chinese capital controls has a huge amount of blame here. Because the Chinese government prevents the foreign exchange market from clearing at a lower price, there's tons of unmet demand for converting Renminbi to anything that isn't subject to such restraints. Similarly, on the demand side - there's folks that would be induced to sell their foreign assets at a higher price if it was allowed.

So essentially, there's a "you can use this to avoid capital controls on your Renminbi" premium on all sorts of things. Real estate in Vancouver. Cryptocurrencies. Chinese companies acquiring foreign subsidiaries with no real business purpose behind it.
Stunning VR Experience Highlights Work of Maori Artists
Yep, as I said some tokens have smart contracts to distribute revenue - I don't know enough about Brave to say whether that's in effect immediately or something they plan to do in the future.

BAT tokens are already tradable on exchanges, and currently trading at 3x ICO price. The pricing is primarily speculative
I appreciate the explanation, and as multiple obviously-irritated k8s contributors have come in to counteract my other comments, I admit I have been curious how long HN would be willing to withstand the pressure from beings so highly-regarded and attached to such prestigious institutions. Surely, it is not wise to irritate powerful persons, especially not with semi-credible lambasts that affect an important centerpiece of their corporate strategy (k8s is part of the strategy to transition people to Google Cloud as opposed to AWS).

This is also good supporting evidence for the amount of SV heterodoxy that HN-the-institution is willing to stomach (that topic was broached last time we crossed paths).

Are perennial, cycle-of-life topics not expected to regularly appear on discussion platforms? I find it grating to see "k8s this, k8s that" all the time. Should I register a complaint as well, so that these threads can be killed next time they come up, on the theory that "many are bored" by the topic, based on the existence of my complaint?

Specifically, which things are not allowed to be mentioned in the future? Was it:

point 1, "Please consider whether you need k8s before you use it";

point 2, "Please don't run a database inside Kubernetes";

or point 3, "Yes, the software world is hardly manageable due to the unintended effects exposed by GitHub and friends"?

Which of these is too tedious and boring to express on HN?

I definitely would understand if only the flamebait comment were off-topic'd, as I know that was close to the edge. I'm more worried by the fact that counterpoints that are apparently "boring" or "tedious" justify censorship.
This article from 2011 (http://washingtonmonthly.com/magazine/marchapril-2011/more-b...) makes a compelling case that, after decades of cutting government jobs and creeping privatization, we simply don't have enough bureaucrats to organize and run large, complex projects anymore. These other countries having success with infra projects still do. Thus the issue.
In fairness, an "open source project" is not a business, and the same considerations are not in play.

When I work from home I accept there's a tradeoff. On balance, it's better for me and my productivity, but overall to the company the wins are less clear.
That's an advantage of convolutional nets. Deep fully connected nets don't do that afaik.
Have Perfect Postures Effortlessly by Wearing This 15 Minutes a Day
How do you propose to "eliminate the threat"?

The challenge is that Trump is a democratically-elected leader. Democracy sometimes produces results that you don't like, but if the alternative is to get rid of democratically-elected leaders each time one is elected that you view as a threat to the republic, you've just killed the republic to avoid potentially killing the republic.
NPM 5 released
The US non high speed rail network is also huge. However it handles freight not people so few people realize just how great the rail system is here. (our passenger rail is terrible)
Financial firms lead shareholder rebellion against ExxonMobil climate change
Do we have a choice?
> it's key not to let your larger and more important point get lost alongside that red herring, and it's one that gets little press here: China and SE Asia have shown, over a period of decades, that heavy-handed state-guided development alongside market forces is a credible third alternative to the One True neoliberal agenda the West has pushed since the 1980s.

Thank you for being a refreshing voice of reason.

I think China's "benevolence", if that's what it indeed is (only time will tell), may not look like it because they are working towards a longer term goal, and for reasons of prudence, sometimes you have to make unfortunate compromises (such as absolutely violating basic human rights of some of your citizens) to achieve goals in a timely manner (strike while the iron is hot).

This is just my theory, there's no way of knowing if it is correct.
It's really dumb and patronizing to believe that people who won't leave your organization chasing a dream are automatically your dumpy leftovers. A lack of ambition doesn't imply a lack of skill.
>Now, drawings are more detailed and contractors are incredibly reluctant to make even the smallest decisions on their own.

I also wonder about the effect of building codes, etc.. It might be interesting to plot construction costs and number pages of building code vs. time for the U.S., Japan, France, etc., and see if there are any correlations. That type of plot seems like it might almost be doable.
"Annual Review of $TOPIC"-journal papers are usually very good. Note also that the lead author on the review you linked is the advisor of the postdoc that did the work described in TFA.
It uses a Carter-Wegman MAC variant.
Sounds like you need to incorporate.
FWIW it doesn't need to be in the article for someone to provide their own viewpoint and experience
Also, to raise under the JOBS act, you pretty much have to do a full accounting audi to the same level as a publically traded company. And I think there is a limit of $50k for each person you raise from with a certain max in total raised. All in all, half of the money raised would go to paying for the funding to begin with, making it very very seldom used.
I may be missing something. They make USD by selling bonds, as long as they make more USD then the scheme has running cost they can increase the amount of USD they have right now by selling more bonds below value, leaving any future government in dept.
I don't remember where I read this, but it stuck with me:

A bag of coffee beans from the grocery might cost you 10c a cup. That's a Product.

A cup of coffee at a greasy spoon diner might cost you $1. That's a Service.

A latte at a fancy cafe might cost you $4. That's because you are paying for the whole Experience of the fancy cafe.

So, what comes after SAS? SAE.
The last coal-fired power plant in Massachusetts shuts down
I see I shouldn't have let the article's reference to stones stand; the specific experimental apparatus used by both sides was lead balls -- Galileo rolled them down inclined planes, while his opponents dropped them from the Leaning Tower of Pisa.

The article lost me when the author blithely claimed that it was Galileo who dropped two <droppable-item>s from the Leaning Tower of Pisa. The author clearly has no idea what happens when you do that; while Galileo was far too good at choosing the experimental setup that would give him the answer he wanted, while ignoring any such setup that would prove him wrong, to make such an obvious mistake.
I was going to ask for some stock market tips since KIA isn't supposed to be published until August 2017, but I see that MEAP means there is an early access version of it that gives you incremental updates. Thank you for the pointer.
Purchasing cryptocurrency, deleting the only copy of the wallet a year later, then posting on a forum two years ago that "please give me back all this money"?

If this was outside OP's control, what in the world is inside it?
From what I have read [0] the j-core people have that on the roadmap for 2019+.

Seeing that Sunway TaihuLight still uses DDR3 I wonder how much power they could save by going with DDR4 and it's lower voltage.

It's cool to see so many older ISAs coming back.

[0] http://j-core.org/roadmap.html
The Tiangong in the movie isn't a real space station so if the Chinese were to build it they could put it in any orbit they like, even one hypothetically 10m/s of delta-v away from the ISS and there might even be realistic reasons for them want to be energetically close to the ISS. There are reasons not to do it but if there's a good reason like the Chinese want to keep the option of physically linking to the ISS open then there's nothing actually preventing it.

So it isn't two known and far distant locations like New York and Berlin, its more like New York and an unnamed city.
Photolithography is only used in the very highest efficiency cells. The vast majority are polysilicon cells with screen-printed electrodes.

Also, low resolution photolithography is not that expensive.
About instant transactions in Dash. They did not implement yet a critical feature which would make instant transactions useful for merchants.

Currently a merchant is not able to declare his receiving Dash address as "Instant transactions only". Without this feature merchant is forced to trust that his customers would always use instant transactions.

https://www.dash.org/forum/threads/we-need-merchants-using-d...
Late reply, but so does setfenv:

> function foo()return function()return a end end
> =foo()()
nil
> a=5
> =foo()()
5
> setfenv(foo,{a=6})

> =foo()()
6
If you look at the block diagram in the GCM article you linked, you'll see that the second-to-last block of data added to the authentication tag is len(A)||len(C). These are 64-bit values, concatenated to form a single 128-bit value.

So if you use GMAC, you'll have len(A) >= 0, and len(C) == 0.

If you use GCM with encrypted data, you'll end up with len(C) > 0, which will give you different results from GMAC.

GMAC is a special case of GCM, and GCM is not simply GMAC + CTR. This is supported by the NIST publication which defines them:

> If the GCM input is restricted to data that is not to be encrypted, the resulting specialization of GCM, called GMAC, is simply an authentication mode on the input data.

Again, GCM != CTR + GMAC, if you make this assumption you will fail to interoperate with correct implementations of GCM.
On the same day that news comes out about the US withdrawing from the Paris accord. Sigh.
GS is buying debt that someone else had. That other group loaned Venezuela money and is now selling the debt at a discount.

Critically if GS did not buy the debt Venezuela would have exactly the same money and exactly the same obligations so the fact GS 'owns' the debt or bob the accountant owns the debt is only important in so far as GS can apply more pressure.
Why is "hacking a smart contract" OK but "hard forking in response" is not?
Who knows what dumb GUI they used that configures the bucket with public access by default.
Sounds like SaaS is falling under standard business rules. You have a core product and you have differentiators. A single, great core product was fine for a long time. As more players enter the market, the differentiators matter more.

Think AWS vs Digital Ocean as an extreme example.