skysight-inc/HackerNews huggingface dataset:
There are lots of small and medium sized reactor schemes.[1] As of 2014, there were four from the US alone, and 36 worldwide. Nuscale is covered starting at page 80 of that study.

NuScale wants to operate their reactor modules in a water pool, with all the reactors at a site sharing the same pool. If anything goes seriously wrong with one unit, the pool gets contaminated. Then all the units, and the spent fuel pool, are inaccessible, and repair becomes a huge problem.

The only reason NuScale is supposed to be cheaper is optimistic safety assumptions. "The NuScale Emergency Planning Zone (EPZ) is expected to
be as near as the site boundary rather than the current 10 miles required by large traditional plants in the U.S." - IAEA. NuScale's design focuses on emergency core cooling, with their water pool approach. But other things can go wrong. Such as leaks. There's a long history of nuclear reactor leaks.

[1] https://www.iaea.org/NuclearPower/Downloadable/SMR/files/IAE...
The+Viral+Generation
Anyone else notice the tumbling object ahead and to the left that appears at about 34:38? https://youtu.be/tTmbSur4fcs?t=2078
> I'd venture if you asked a bunch of teens what an ethernet cable is I imagine it'd be similar to the number that knows what a rotary phone looks like.

Not if they participate in the "PC master race" (i.e. are passionate PC gamers). These people typically strongly prefer ethernet over WiFi for the lower ping and insensitivity with respect to disturbances (also from microwave ovens; cf. https://xkcd.com/654/).
I think they want to prevent foreign rich parents from scamming the program? They want honest entrepreneurs? Not just the rich kids, with crafty parents?

(Personally, I don't like these programs, except in extreme cases, like letting in accomplished scientists--for a limited time. And only from countries that reciprocate.)
According to w3c:

> The error flag indicates some type of network error or request abortion

and in their spec for "network errors" at https://www.w3.org/TR/2012/WD-XMLHttpRequest-20120117/#reque... unless you're using it in synchronous mode, it just sets the error flag. There's an onerror callback, but it doesn't appear to get any information about what went wrong than the WHATWG version.
The population should be evacuating anyways. And it's much preferable than the alternative, which is lost power and also a meltdown...
So, at the risk of sounding foolish: what's the advantage of a fast reactor? If I'm remembering correctly, U-235 has a much better thermal than fast fission cross section.

As to the rest, I'm sure there are risks to pressurizers and natural circulation, but they seem a lot more comfortable than trying to avoid sodium leaks. Or is there so little corrosion in sodium systems that it works out pretty well?
What's awesome is watching the commentators trying to hold back their excitement a bit. Awesome job SpaceX!
I'm sorry, but once again: this thread began with a different claim. I'm not interested in debating whether it's easier to audit C code or assembly code: I've repeatedly acknowledged that it is.
A single accident can kill thousands, cause cancer for several hundred thousands more, cost billions of dollars in clean up usually tax payers pay for, nuclear plants have no concept of proper disposing and dismantling a reactor, have byproducts with unacceptable half lives, are potential targets for terror threats, use other harmful chemicals (people like to ignore) etc. etc. etc.
> So the idea that the compiler for that language gives you useful feedback before your dynamic system gives you feedback from actually running the code is at best dubious.

Working in Haskell, I get useful feedback about code before I write it! I find this very conspicuously missing when I work in Python. I can't ask "what's the shape of what I need to put here?"
The problem AMP is trying to fix is very real. Its just a shitty powergrabbing fix
>When people can charge their car overnight for free with a wind-turbine

When the HOA/planning commission determines that wind turbines are not eyesores, and property speculators decide to install more than a small handful of chargers in the garages under the apartment buildings they own...

It's going to be a long climb. I'd guess that in the immediate term, we'll see a Luxe-like service to come get your car in the middle of the night, charge it, and put it back. This should be substantially more expensive than the amortized cost of a charger in your garage, so renters will eventually start demanding chargers, and over a few decades things will change.
Heh, I used to use my first cellphone for dialup back in the early 2000's with T-Mobile USA. The setup was via bluetooth from a Sony Ericsson t68i (amazingly this phone still works) to a Palm Tungsten T. Then I could get a 9.6kbps connection to do IRC with it. TMUS never deployed HSCSD since it would have stressed capacity on the network (eating up more timeslots)

The reason I used this method over GPRS was that T-Mobile started to put in port blocking for their $2.99/mo T-Zones WAP plan so IRC wouldn't connect (I later on figured out I could run SSH on imap port 143 and forward through there).

I had unlimited nights and weekends and CSD used minutes, not data buckets. So what I did was connect to a free dialup provider in New England. It worked well except for dialup time and dropoffs if the signal got low.

EDIT: More recently I used a globalstar phone to mess around on IRC like the old days, also with a 9.6kbps connection BUT CONNECTED THROUGH SPACE! (pic: https://farm9.staticflickr.com/8356/27784526013_bee94fd5dc_h... )
How do you look at the last 15 years worth of Microsoft Windows OS advisories and conclude that closed source has prevented hats of all colors from discovering vulnerabilities?
Leishmaniasis is the big disease soldiers are supposed to watch for when deploying to the Middle East. I can spot those little flies anywhere.
Well - devs and admins spend the minimum effort required to reach their primary goal. And I believe most of the time that it is in line with their employer's policy.

I'm too young to remember how it was in the old times (would be glad to hear a story or 2), but since my very first job, the internal policy (the real one - not the one presented to customer or auditors) has always been "scew firewall, selinux, principle of least privilege. Disable everything so it works right now and grant the dev team root access to the prod environments - they need it for an urgent customer issue!".
It's almost like the path to Mars can be divided into a series of small achievements -- like some sort of small steps before a giant leap, if you will.
print function is so superior than print statement. I use to (long ago like v1.5 or 2.0) create stupid little functions that put print into a function (also raise and some other statements cause it's super fucking annoying that some language elements can't be used in expression context) or use sys.stdout.write() and get pissed off cause that doesn't auto append newline.

print (and I'd argue raise) aren't special enough to be statements, to have special syntactical rules, to be so special cause that works different.
Landing is here: https://youtu.be/7WimRhydggo?t=2194
Are you asking me to "back up" the claim that security researchers use BinDiff tools to reverse out vulnerabilities from vendor patches?

At one of the better-attended Black Hat USA talks last year, a team from Azimuth got up and stage and walked the audience through an IDA reverse of the iOS Secure Enclave firmware. Your argument is that it's somehow harder to reverse a simple iOS application?
Applying deep learning to Related Pins
Thanks --- this one's the technical webcast and not only gives you a much better view (mostly side-by-side streams of the video feeds from the two vehicles), but there's no commentary and the audio feed's from mission control.

No onboard ascent footage or fuel tank footage this time, alas.
The USS Enterprise (the carrier, CVN-65, not the fictional one) had modular nuclear plants. It had eight submarine-sized reactors. Later US nuclear carriers had only two, larger, power plants. Although the military likes modularity and redundancy, the headaches of staffing and operating eight plants were not worth it.
Around here they don't pay for blood, they give you things like movie tickets or restaurant gift cards... sure the recipients could sell them for cash but it's not as easy.
> If people are willing the give a unit of plasma for $7.50 and supply is meeting demand, it seems precisely equitable.

The US actually provides 50% of the world's plasma supply, because there are more people in the US willing to donate under the current system than there is a need for it, whereas most of the world (which does not pay for plasma donation) has an ongoing shortage.

Plasma, like whole blood, also has a relatively short shelf life and cannot be donated on an as-needed basis, so it's preferable to have more than you need, since you never know when there will be a natural disaster, etc.

I've donated plasma. I think the whole process, from the moment I walked in the door to the moment I left, was about two hours. I read a book the whole time and they paid me about $100 (I don't remember exactly how much). It was pretty easy, and I'd do it again if I could.
Is this project current?

The timestamp on some of the photos shows: 2012
Should you not be offered some sort of permanent residency in return for "growth and job creation that they would provide a significant public benefit to the United States", especially after the first 30 months?

So you get 60 months and then have to leave the country? How is that attractive?
Are you concerned about the acreage?
Luckily there is a report for you out there that looked at the potential for solar energy in the US. In short, it is about 1000x higher than what would be required to provide the US with power.
Startup idea: electricity delivery trucks making house-calls, or a fleet of workers driving cars to charging facilities and back while their owners sleep.
fwiw tag lines in english are often chosen specifically for their ambiguity. i.e. for multiple meanings.
Also - I don't think the naming issue with LibreSignal was necessarily a legal one per se. Moxie just expressed his opinion that he didn't like that they were using "Signal" in the name. He didn't specifically ask them to rename it. They offered to rename it, to which he replied that he'd appreciate that. (They didn't rename it since they just discontinued it instead).
> If I understand correctly, you're wanting to implement Keygen into an on-premise infra app that you would be selling? If so, that's definitely the sort of thing Keygen was designed for, even giving you the ability to lock down licenses to specific machines.

Yes, that's the plan in consideration. I'll get in touch should that pan out.
"It's not a perfect example, but it does hint at the possibility of people coming together to solve a communal problem using communal funding, and individuals having the option to leave if they don't like it and don't want to consent."

Not unlike the way that (for example) local road maintenance in a particular city is typically funded by citizens of that city, who always have the option to leave should they tire of paying the taxes the fund said maintenance.
You don't? To build iOS apps you need X-Code. So you need a Mac.
Peak Uranium: the uncertain future of nuclear energy
Does anyone else feel like the COPV problem was not truly solved? This is the second mission loss caused by the same exploding COPV's.

They need to be redesigned and SpaceX is twiddling around the issue to avoid the r&d cost. If I was NASA I would be very hesitant to use their rockets for people at this point
I didn't know the pronunciation was simplified with the creation of pinyin. That is really interesting. Could you give an example (e.g. two words or sounds that used to be different and are now pronounced the same)?
Requiring 'traditional' reactors for baseline is a myth. Renewables work just fine.
Very openly history?
If you chime with the flavor of most articles in the Guardian you'll love this piece about the 'deplorables'.
If their goal is marketshare and then profit, then step 2 is raising the price. Be it slowly (so it is less apparent to avoid bad publicity) or quick (guaranteed uproar, but only once).

An alternative theory could be their business case is related to "Xiaomi Can Silently Install Any App On Your Android Phone Using A Backdoor" [1]. One could come up with a theory their business case is related to that kind of behaviour. Ie. a front for Chinese government.

[1] https://thehackernews.com/2016/09/xiaomi-android-backdoor.ht...
Is the 100k cap official or is it just an idea so far?
while the iSeries (think AS/400) has a shorter history many programs compiled to earlier versions run on later versions due to the separation of hardware layer from operating system layer. The system can recompile existing programs without human usable/retrievable source due to the method use to encode them.

there is code from the eighties running in slightly updated form on our z and even the i series systems have twenty year old code. both systems have web facing extensions that directly map to older code (as in, green screen 3270/5250 that has no change to its code) pretty much seamlessly. new code is often employed as necessary but the idea that stuff that worked well that is a decade or more old still works today is what amazes me about the various IBM platforms
Spoken Mandarin is virtually always spoken with tones (except when sung, or when foreigners speak it), but when written virtually never has tones (e.g. signs). Only childrens books write the tone marks. So, along with various other intonation, there's a lot more information communicated during speech.
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Meanwhile, any kid can go buy a gallon of petrochemicals without any kind of license and contribute to one of the most deadly and dangerous problems our species has ever faced.
So, I'm calculating a material buckling for S6G that's only one-fourth that of the described SMR, and I know S6G is highly enriched. Why is the SMR so close to parity for power density, especially if it's using natural circulation?
The long time horizon to recover from any disaster is scary. Chernobyl (clearly inadequate safety planning) aside, is there any reason to believe that a Fukushima-type disaster would not be possible (or inevitable)?
Why does Space X land on barges while blue origin land, well on land. Also does anyone have a pictures of iterations of Space X's landing methods and strut setup?
It's also one of the coolest features in Elixir IMO.

http://elixir-lang.org/getting-started/enumerables-and-strea...
This reminds me of "The Copenhagen Interpretation of Ethics": http://web.archive.org/web/20160806191858/https://blog.jaibo...

Our culture has a very strange belief that you shouldn't benefit from the less fortunate. Even if you benefit them too. People that have never donated a dollar to charity in their lives, will come out of the woodwork and complain about "exploitation".
Renewables is the way to go. No waste problem, vastly reduced risk. Why bother with this?
This proxy argument can also be applied to EEG.

Anyways, the signal you get from fMRI is enough to reconstruct sequences of images:

http://news.berkeley.edu/2011/09/22/brain-movies/

EEG can't even come close.
Good thing T-Mobile made a commitment to keep their 1900mhz GSM working through at least 2020. (UMTS might actually sunset first)

Source: https://newsroom.t-mobile.com/news-and-blogs/att-2g-iot-life...
Mission loss?
Clearly NASA & FAA know a lot more than you and most of us do. If they choose to let SpaceX continue launching their rockets, there must be a good reason behind it.
I read a while ago that they were restricting the fuel tank footage going forward for ITAR concerns.. Can't seem to find my source but it feels like it's been a long time since we saw the inside of the tanks.
Installing partitions in the pool to isolate each reactor should be a very minor expense. They need not even be self-supporting, just watertight enough to prevent mixing.

Builing a larger or more partitioned pool shouldnt even enter into the cost equation imho. Water and concrete are rather cheap given the context.
Why do you keep raising this straw man? It is obviously possible to reverse engineer object code and find vulnerabilities. But it is (equally obviously) easier to examine source code to find vulnerabilities.
Show HN: Coggy.pw Helping freelancers work better, I would love some feedback
Post a link to help others find it. (=
Stop looking at nuclear.
(Maybe read up on the nuclear disasters so far and think about that when they install a nuclear power plant in your neighborhood...)

Also, again, why bother?

https://www.greentechmedia.com/articles/read/how-much-renewa...

Vote this down all you like, it doesn't change the facts.
Guessing "hostile" was intended.
Your point being?

Yes, there would be a trace in the binary. Potentially detectable by maybe one person in a million. Is that supposed to keep WhatsApp from including malicious features? I do not think so.

What happens is:
1. researcher finds a malicious part in WhatsApp binary
2. WhatsApp declares it a bug and fixes with a new binary
3. we are back at square one
The point I was trying to make was to eliminate fines and court costs as a form of punishment for traffic offenses. The only penalty would be demerit points on one's drivers license.

That removes the revenue aspect from traffic enforcement, but still will lead to eventual license suspensions for repeat offenders.
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It takes a lot less gin as well, since kids have such a smaller body mass than adults.
Controller inputs and outputs features rugged protection circuits to operate the in the harsh environment. All interfaces work up to 30VDC and has overvoltage, overcurrent protection. Output pins can control relays and stepmotors directly.
Currently, we use a Cortex-M3 ethernet microcontroller, and running bare metal firmware in it. But we have a plan to migrate ARMv7 processor and run an embedded Linux, to improve security.
Two issues I remember hearing - there's a much larger launch window for landing on the ocean barge and something regarding approval/ regulations being more stringent for a land launch. Blue Origin's test flight didn't go too high so it didn't face the same issues.

I may be completely wrong here but I'm fairly certain that's what I remember reading.
Yeah, in retrospect I responded without thinking.

Of course the semantics of a language can impact how easy/hard it is to write a fast implementation for that language. And as far as I know, there isn't anything special about the ECMA specification that makes it any harder to speed up compared to other languages in the same space (dynamic languages, whose specifications were written with an interpreter approach in mind).

Still, in my mind, speeding up any sufficiently dynamic languages with eval and metaprogramming without straying at all from the language spec is like "fitting a square peg inside a round hole." And I think that has been done successfully with JS, at the cost of making it harder to reason about how the compiler is going to treat my code.
Likely to be the fairing.
I've always imagined the jury system as being the least of all evils, not an expression of faith in the decency and competence of your fellow citizen. It's the same thing with Churchill's famous quote about democracy: just because it's better than all the alternatives doesn't mean that voters have to be even attempt to be remotely reasonable.

I'd imagine that this "last question" guideline exists because of the experience of trial lawyers, so I'm certainly not saying it's wrong. I was just surprised that that's the way it shakes out. The closing argument thing does make sense, but that seems like it would also deprive the jury of the opportunity to piece it together themselves.
I think they're referring to the incident that caused this RTF to be necessary, but yes, confusing.
Sounds like you have just worked in web dev in the US. If I'm wrong apologies and please elucidate me.
There was another article claiming there's no backdoor. https://news.ycombinator.com/item?id=13394900.

Anybody with any ideas what is happening exactly?
> Very openly history?

Given krakensden's posting (https://news.ycombinator.com/item?id=13399853):

> Especially given Docker Inc.'s history of counterproductive Red Hat hostility.

I think that it is clear that andrewguenther meant 'hostile' instead of 'history' in (https://news.ycombinator.com/item?id=13400383):

> Docker has been very openly history towards Red Hat in the past.

Let he who has never typed a passing thought rather than the word he meant cast the first stone.
They use the barge as they are firing much harder than blue origin and don't have the fuel to make it back to land
Sounds like you'd enjoy the field of "media studies".
> Seriously, egg donation seems to affect your health more than plasma donation

Yes, for a healthy individual, the act of donating plasma is about as risk free as you can get. Perhaps sperm donation is the only less risky live tissue donation. The reason we pay for it is that, if we didn't, we wouldn't have enough, and people would die. That's not speculative - countries which don't pay for plasma donation end up buying it from the US.

Donating eggs can have really serious complications even for healthy individuals - its not a trivial procedure, and even when performed correctly, it carries a small risk of infertility.

That's not to say you shouldn't do it, but there's another reason that we shouldn't expect women to do it for free - that actually becomes a lot more exploitative than providing up-front compensation and a full explanation of the risks, which we do.
I wonder how this style of advertising would work in a modern SaaS product.

It would be a rebellion against virtually every principle of modern ad copy while still being rooted in something that sold units. Might try it.
All of these are perfectly defensible - the info in question was a 'smidgen' compared to the total amount of data taken, there is no universal agreement about the constitutionality of the program. There's no mention of morality in the bit you quoted. The author is a lawyer.
True it'd be rather nice to not have to read another article like: http://www.npr.org/sections/thetwo-way/2016/02/25/466555217/...

in 30 years
No, it's not! It's easy to fetch a url's content into a bag of bytes. That's it.

If the content of the page happens to contain an emoji (which hey, more and more do) or even a friggin' unicode double-quote mark, then you're no longer fetching it into a valid string, if you take string to mean faithful textual representation. You've got all the bytes there, but you can't interpret it correctly.

This is a real problem that has caused real pain for me with various tools written in python2
Ooh, that is a heck of a lot better than the last time I looked at it. And a very neat link - thanks!
> Haskell's claim "If it runs then it's likely correct" is a deception

This is missing some context. If we generate random functions until we find one that compiles, of course it's not "likely correct". But that's not what people are doing - they are setting out to write correct code. If the types they use exclude functions that are almost correct, then it's likely when they actually hit something that compiles it will also be something that's correct. All of that said, it's true that the claim is sometimes made more strongly than it deserves to be.

> because no compiler can catch logical errors.

Not without my help. But I can certainly write my code such that the compiler will catch certain logical errors I'm likely to make. I have a pile of examples, but not the time to elaborate - I'll add them later.