skysight-inc/HackerNews huggingface dataset:
Ah its not so bad. If you have to take something radioactive, thats the one element I'd take because I'd pee most of it out in about a week.

The phrase no one on HN has mentioned yet is "biological half life". There's a pretty decent wikipedia article at

http://en.wikipedia.org/wiki/Biological_half-life

Whats important is the ratio of biological half life to radiological half life. Superficially it sounds like you're WAY better off with contaminated water, with a bio half life of about a week, than plutonium around 100 years, a difference of about 4 ords of magnitude. However the half life of 3H is in the 10s of years range and non-RTG Pu is about 20K years range or about 3 ords of magnitude lower activity. So the net effect is it hangs around 4 ords of magnitude longer, but specific activity is 3 ords of magnitude lower, so given X number of atoms, Pu is only about 10 times worse for you than 3H.

All bets off for the Pu RTG isotope that is so short half life it self-melts pretty easy, or that one Pu isotope thats mostly harmless but its decay product is icky (I think 241pu to 241Am where the 241Pu if it wouldn't decay is mostly harmless but the 241Am is icky)
It was kind of a joke, but here's the Chrome developer tools page on debugging JS: https://developers.google.com/chrome-developer-tools/docs/ja...
check out "macrophage and bacterium", by the same guy. All of the shapes of the proteins are informed by their crystal structures. The concentrations of them in the cell/plasma are also informed by known data about those environments.
Anyone can correct me if I'm wrong, but I believe for two years Tepco has been dumping about 150 tons of water a day on the melted cores at the bottom of the reactor buildings (or wherever they are), and pumping 100 tons of it out to filter and reuse.

Obviously, 50 tons/days has disappeared every day for 2+ years. Since that water came in contact with the melted cores is extremely radioactive (not just tritium). Measurements of the water filling the lower levels of turbine buildings supports this thinking (something like 1 Seivert/hr).

Since TEPCO has not allowed any independent measurements of the ocean within kilometers of the site, nor independent ground water measurements, and the independent ocean measurements taken at large distance from the site do not show a decrease in contamination vs. time, it appears likely they've been leaking substantial amounts of cesium and other radionuclides into the ocean for >2 years.

If so, an impressive coverup. The math is simple, water in minus water out, and where did the missing water go.
Well I don't think people ingest large amounts of seawater. :)

Perhaps fish and other seafood (assuming that the tritium concentrates in the seawater around Japan and doesn't get dispered into the wider Pacific). But then the tritium would be mostly "fixed" within the flesh of the fish and end up being mostly self-shielding. Perhaps the ATP w/ tritium and similar products get carried into cells but by that point we're talking about nothing worse than the day-to-day problems of life under the sun, eating bananas, breathing the sweet sweet scent of brick-induced radon, etc.
This is not a compelling reason to go solo but instead makes the case for being careful when choosing people to work with.
This casts only $sum to int. If $i is a float, the result is a float.

With 32 bits, $sum will be a float bigger than PHP_INT_MAX at some point, and the cast will truncate it, which is unlikely to give the right answer.

With 64 bits, which I assume is the platform you tested on, $sum is never bigger than PHP_INT_MAX, so it's never converted to a float, and the (int) cast does nothing (and the computation is done right).
If you want a guaranteed 64-bit type, put in your code:

#include <stdint.h>

then, use uint64_t for unsigned and int64_t for signed. If you want 128 bits, in gcc you can use __uint128_t (it has two extra underscores at the beginning because that size is nonstandard), but I don't think there is support for 256 bit integers.

Try a big integer library: http://stackoverflow.com/questions/124332/c-handling-very-la...
Taming OAuth's Split Personality
The S4 size tends to do poorly with women (not just anecdotally, but based on market surveys.) It's large enough that it won't fit into their pockets. But if you go even larger (Galaxy Note) then women start to find the larger size okay, because they're going to put in their purse/bag anyway (but men now find they can't fit it in their pocket easily, so they dislike that size jump more.)

So the 4" and 6-7" sizes end up being more popular for women, while the 5" sizes do worse, because they're not as big as the Notes but still too big to fit in a woman's pocket.

(Similarly, there's appeal to the 7" size for guys because it's something you can fit in a jacket pocket.)
How does this compare to Macaw: http://macaw.co/
It's been a long time since I've worked with PHP, I assume

$sum += (int) $i;

will still convert to float once the size of $sum gets to the requisite size?
Clojure:

(reduce + (range 1000000001))

Written that way, though, it takes a long time (108 sec, compared to 2.6 sec in C). So that's not fast, as elegant as it may be.

This is what I have for C. It's probably not great C code.

int main() {
long res = 0;

int i;
for (i = 0; i <= 1000000000; i++) {
res += i;
}

printf("%ld\n", res);
return 0;
}

Faster than (naive?) C is this Clojure loop (no range object).

user=> (time (loop [i 0 res 0]
(if (> i 1000000000)
res
(recur (inc i) (+ res i)))))
"Elapsed time: 1612.094 msecs"
500000000500000000
And yet we take another step closer https://news.ycombinator.com/item?id=6159633
Ah yes, there is that. And in fact a bit of searching turns up this is probably what Reuters was reporting [http://www.japantimes.co.jp/news/2013/08/03/national/huge-le...]

I had originally dismissed Tritium as a candidate for the contamination because its nominally only in the reactor water and the Reuter's article talked about 'groundwater' (which is the name nominally given to water that accumulates in aquifers as a result of soil percolation).

Apparently TEPCO is losing control of the reactor coolant water which is a different thing.

That said, Tritium [1] isn't a particularly "bad" agent as it decays into Helium3 (great for fusion reactors if you've got one :-) and then floats away.

[1] http://en.wikipedia.org/wiki/Tritium
Hey Max, you're totally right. Responsive Web Design is exploding, and it's great to see so much action in this space.
omg, secret political correctness police, please go away!
long long is merely required to be at least 64-bit and in practice is 64-bit on every platform. AFAIK no general-purpose processors support 256-bit ints. AVX2 has 256-bit vector operations, but that is not at all the same thing.
I suspect the former. Still, it is good to call attention to these things.
In the case of Android, I just wish developers would follow the design guidelines [0]. At a glance, just following the skeleton of those docs would address several egregious design issues I've seen.

Anecdotally, I see a strong correlation between adherence to Android style and app quality.

0: http://developer.android.com/design/index.html
I was considering using Jetstrap for a new project that I'm going to do after I finish up the Startup Engineering course by Coursera. I'm interested in using this instead afterwards.

I still don't know how to implement backend code with a front end website, but I'm sure this wouldn't be a problem considering the code is exportable.

Great work, I played with the demo for a while and I really like it.
If you're being pedantic, it is true that African Americans have on average about 30% European genetic admixture. The facts presented are still quite striking, no?
The benchmarks are impressive considering its older architecture. Combined with the fantastic battery life and novel features, this may be the Android phone to buy. I'm not exactly sure why Engadget concluded that it isn't worth $200.
WorldWideWeb, the first Web client
Please never run a restaurant.
(display (/ (* 1000000000 1000000001) 2))
BSD's nc doesn't have the (arguably unsafe) -e option.
There's no real urgency... this isn't really costing Apple any money.
I think S3 is a counter example.

Because you pay for S3, AMZN has many incentives to make it reliable and keep it going.

A free API might look like a giveaway, but it is ALWAYS a chance to take.
Once you get DOSBox running don't forget to boot up Win 3.11.
What I mean is that I am using Porsche as an example only as it pertains to its history of an independent company. I wanted to provide an example of an independent company that is limited to making expensive cars -- i.e., something similar to Tesla.
Slight correction. Alexander was speaking at BlackHat, not DefCon.
You should look into adding Pentax. There is tons of old Pentax gear out there with unparalleled backwards compatibility. Also, pentaxforums is a great community where I think you could easily pick up a lot of new users and gear.
I don't think attacking vegetarian and vegans goes well to your credibility.
Nice work.
I think I might have found a bug: Scalling the brush on the white board doesn't seem to work. (on my keyboard that would be alt+8 and alt+9).
Exploring the shapes of multivariable mathematical functions
Binding Forms in Racket and How to Implement Them
Or J, if you're into that sort of thing

+/i.1E9+1

You can get that here: http://www.jsoftware.com/stable.htm
I started using NS_ENUM, but I noticed that if I used it in a header file, if I tried to make a property or variable of the enum type: @property (assign) EnumType, it would require this to prefaced with enum, i.e. @property (assign) enum EnumType.

If you just type typedef enum {...} EnumType, you could write @property (assign) EnumType. I prefer this format in my source code, so I quit using NS_ENUM.
One interesting problem with "stuff" near Japan is according to western coverage, the only thing that happened was a nuclear accident.

However what actually happened was a huge disaster. So right off the coast lets say around 100K cars were destroyed, and the average car has a twenty gallons of liq petrochems like gasoline, used motor oil, and all the various hydraulic and coolant fluids... all floating in coastal water now.

Its like a live retro experiment of what if junkyards and the like were totally unregulated for awhile. There was a time when you'd just dump that stuff in a river instead of proper disposal and recycling, and we've got an interesting live example of what happens if we try it again...

So is the two headed fish because of modest radio contamination, or because it grew up next to a puddle of used motor oil, or the warehouse full of insecticide that washed into the ocean, or...
What makes you think that petrochemicals would be involved in growing synthetic meat? They could use all kinds of natural feedstocks (starches).
At first, I thought it was the same app.

They are suspiciously similar.
The number one thing I thought of is lost/stolen. On the front page you should advertise what you do to protect the lender from damages, and borrowers from accusations of damage.

According to your ToS you already 'guarantee' up to 5k, "Maximum Recovery Value within CameraLends is not to exceed $5,000" granted your borrowers are 'verified'.

When you are dealing with expensive equipment, this kind of thing is a must.
sigh Get a copy of the MMM and read it. TL;DR: adding more people to a project won't necessarily help make it go any faster and often will slow it down.
They will have a solution to the roof rack problem. No one knows what it is, but they've been asked about it enough, and are aware that they will need a solution. What that solution will be is less clear, but there are plenty of possible solutions.
Ask HN: Open source marketplace platform?
It seems like a fairly straightforward problem that lots of people are solving independently, so I'm just wondering if anybody's open sourced a marketplace platform yet. (If "marketplace platform" isn't clear, think Airbnb or Etsy.)
Anything that recognizes and encourages the good behavior of people.
Posted on stackoverflow, what an irony...
Correction, properly learning about data types and binary representation is critical to "get" programming.

I've found that web developers often undervalue (or even scoff at) web developers with CS degrees, but any first-year CS/EECE student at a decent university (or even someone who has taken a couple of Coursera CS classes) would have instantly recognized this to be a floating point related issue. Being able to whip up some scaffolds in Rails is great and immensely useful, but I'm of the opinion that a great Rails programmer will need a proper understanding of the C & Assembly that's behind all the magic.
Nice work Vlad! I am super excited that you've shipped!
Plus when we're talking about transuranics we have to account for the chemical toxicity which is normally much more dangerous than the radiation itself.

Great point bringing up biological half-life by the way, especially as that helps explain why some isotopes are considered more dangerous than others for what may seem to be counterintuitive reasons.
This is purely arrogant! Think of other such popular services they were much more concern about thier FREEMIUM users comparing to paid services like AppStore dev centre.

At least they should disclose why it is taking too long for restoring every services.
What Google’s First Enterprise PM Can Teach Us About Product Roadmaps
Researchers say Tor-targeted malware phoned home to NSA
Show HN: travel visualization - 3D geo mashup using D3 and FB
No Honestly, I'd appreciate it if you can shed light on this, imagine it was a smaller company like github, or dropbox, they would have come forward and explained things, CEO or CTO would have posted to their blog, explaining what happend and what the plan was, Apple does not even have a link to that status page from their developer.apple.com page.
Develop modern Web Apps with Dart
No, putting it on the label is giving the consumer the choice, as well as the ability to follow their food back to its source if they so choose. In a consumer friendly food economy (in other words, the EU, or at least Germany), almost everything is labeled sufficiently to follow it back to the factory or farm that produced it. That, to me, is a very good thing.

The idea that the government and corporations should decide what consumers need to know is repugnant to me. The consumer should be the boss, not the food industry, and certainly not the government. Knowing what you are buying is, in my mind, a basic right in modern society.
I don't think there is any developer lock-in. As you are saying it's the customers choice. When customers have more choice they can choose to go for an OS without Apple-control.
I'd suspect there are a number of people in your shoes and in the shoes of this entire thread.

I read these responses and thought "Hmm I wonder what it is they're doing. Maybe I could help or at least offer some brain power?" then realized clicking usernames revealed dick-all about any one of you.

I had a thought "Why hasn't there been a matchmaking service for entrepreneurs?" A quick Google search gave me the answer: some already exist. You could try one of those. Alternatively you could use HN to help solicit help by using the about section or use posts like this to give some modicum of detail.

When I see nothing in your about section and nothing in these messages that seem to explain the "what" you're trying to accomplish, I have a hard time believing you're really serious about your search.

It's more likely that you have your own system of who you deal with or you're just passively searching, severely. That's all perfectly fine, just not something I would be doing in either of your shoes.
If you have visionary guy in your startup, he should come with good marketing skills and that should be his main job, so that he can do what he is good at. Selling the vision to customers and investors can be very valuable. Guy who knows the product sells the vision and not the actual product can be very valuable, because the actual product is moving target anyway.

"Every successful enterprise requires three men - a dreamer, a businessman, and a son-of-a-bitch." -- Peter McArthur.
You make the claim that aversion to factory farming is rational, but you give no further explanation than to loudly exclaim that reality agrees with you, which is a singularly pointless thing to say.
It's more complicated than that. As of now, the major part of Tor's funding (still) comes from multiple sections of the US government. Nobody likes that, and this is being discussed. (e.g. [1])

The overall relationship between USG (which is, really, a society of different sections, this should not be forgotten) and the Tor project is complex and, I should say, schizophrenic. The initial motivation for developing Tor (while it was being conceived in the US Naval Research lab) as a civilian project was clear (need lots of civilian nodes and civilian traffic to drown out the spies' / army employees / whoever's traffic.) What is happening right now I don't really understand, but would like to, very much.

[1]: https://trac.torproject.org/projects/tor/wiki/org/meetings/2...
Why even teach it/include it at all?

I fear that other developers will read a comment like this three months down the road and take it hook, line, and sinker. It is in line with the narrative that AngularJS and similar tools hide their complexity/inflexibility, and that the up-front examples are marketing fluff. I know I am guilty of this when I look to comments like this one for the "on the ground" perspective.

Real-world AngularJS applications use multiple templates and {{ o.p }}. {{ o.p }} is the recommended way to render scope 99% of the time.

ngmin[1] solves the DI minification/annotation problem transparently and is trivial to integrate into any existing build process.

[1] https://github.com/btford/ngmin
Sure, but those same arguments apply to synthetic meat. If you're processing inputs in a lab, you can likely be far more flexible than how a specific animal's digestive system happened to evolve, and you don't have the overhead of running a cow for 1-3 years¹ before slaughter. From what I can tell, about 75% of a non-lactating cow's energy input goes into body gain. So that's 25% off the top before you even consider what goes into skin, blood, bones, and the less palatable organs. Apparently, beef yield makes up about 40% of a cow's total mass, so assuming uniform energy usage for all body parts (which could be wildly wrong), only around 30% of the calories actually processed by a cow will turn into beef.

¹And having searched for that statistic and read the necessary surrounding material, I need to lie down for a while. Jesus Christ.
There are vegan sources of Omega-3 fatty acids, flax seeds being the most common. And yes, vegan mothers should pay attention to their diet, just like omnivore mothers.

"It is suggested that vegans and vegetarians should use oils with a low ratio of linoleic to linolenic acid in view of the recently recognized role of docosahexaenoic acid [DHA] in visual functioning. If known pitfalls are avoided, the growth and development of children reared on both vegan and vegetarian diets appears normal." http://ajcn.nutrition.org/content/59/5/1176S.short
The trouble with this is that no centralized analysis can determine what "qualified" actually means; only an individual employer can determine that. So if they say there are no qualified engineers then that's the end of discussion.

Having more intelligent people in the US is a good thing.
I recommend people respect our planet, animals, and each other, and live responsibly and sustainably with what we have been given and has proven to already work.

I also recommend thinking critically, logically, and avoiding false dichotomies.
Thanks for pointing that out for those curious about organizations and history. The more I learn about history, the more I am reminded of the phrase: "It's complicated."
It is too bad you can't say more about this, one of the fun things I got to do a couple of years ago was to stare into the pool of the Reed Research reactor running at power and look at the awesome Cerenkov radiation (that eerie blue glow, it looked exactly like this : http://en.wikipedia.org/wiki/File:Cerenkov_Effect.jpg [yes that is the actual reactor, no I didn't take this picture :-)])
It describes what the article is about in general but removes why it is specifically relevant.
From the article:

>To be sure, using data to argue about contentious policy issues should always prompt skepticism.

Death of journalism right there. Data be damned!

On a more serious note:

>"There is, indeed, a shortage of tech workers in the Bay Area."

That's because it's so darn expensive to live in the Bay Area, and almost impossible at the wages that tech companies generally want to pay for talent. They're knotting their own noose and standing on the chair, screaming that they'll kick it out from under them, really, for serial this time guys!, if they can't have cheap, underpaid talent to exploit.
Ask HN: what is the best Mandarin Chinese audio course that you've encountered?
I recently started a job with a long commute, and I'm looking for purely audio Chinese language courses to listen to in the car. Free is good but I'd be willing to pay for effective resources. If any of you have suggestions I'd very much appreciate it!
> Does it taste like despair?

Synthetic meat doesn't, at least, taste like screams.
Interesting, sure, but incredibly hard to create with an uncoordinated Internet community. It'd take 1 good programmer/writer, ideally.

Without a clear, quantitative standard as to which Python* implementation is best, you'll find: a one-liner that claims to be 'pythonic', a 150-liner that's slightly more efficient, and a 30-liner that looks like it was written in C. The more popular the language, the wider the variety of responses. The more helpful the language (that is, 'newbies' can contribute solutions to otherwise difficult problems), the more solutions. The more divisive the language, the more bickering you'll have.

The Programming Language Shootout doesn't suffer this fate because it is 0% subjective. Discussion is only interesting with subjectivity, but technical discussion is presumed to be mostly objective. StackOverflow treads the line carefully.

1 writer could do it. 2, if they don't disagree on anything.

* I don't mean to pick on Python. Python is great. Insert language-of-choice
Mac Danzig seems to counter your argument that's it isn't possible.

http://www.ufc.com/fighter/Mac-Danzig
http://www.mikemahler.com/online-library/articles/mma-traini...
To me it sounds like someone is trolling. The NSA wouldn't have hardcoded a fcsking ip address in an exploit...that's just stupid.
Hello Relaxitup,

There are several projects to build a PaaS around Docker:
- Deis: https://pypi.python.org/pypi/deis/0.0.4
- Dokku: https://github.com/progrium/dokku
- Flynn: https://flynn.io/

Also, have a look at this blog post for playing with openstack + docker: http://blog.docker.io/2013/06/openstack-docker-manage-linux-...
The fun part is that the NSA's mission is not at all incompatible with the State Dept.'s, taking them both at face value.

If the NSA surveils a diplomatic agent in Iran reading BBC News then, well, whatever. No harm done, for either NSA or State.