skysight-inc/HackerNews huggingface dataset:
Perhaps there's a difference in intensity and duration.

Wikipedia indicates[0] that an EMP could generate 50kV/m electric fields lasting ~1μs, a second component similar to lightning lasting ~1s (electric field intensity not listed), and a third, long-term component that lasts hundreds of seconds.

CMEs, it appears, only generate the third, long-lasting type of electric disturbance. According to NASA[1], these have electric fields up to 26V/km, which is a much lower intensity, but for a significantly longer duration.

[someone please check my numbers; they seem wrong but I'm posting them anyway; my guess is misinterpreting electric field potential as actual induced voltage]

To estimate how much power would be dissipated in transmission lines, let's consider a disconnected 1km wire with a DC resistance of 30 milliohms per kilometer (based on [2]) and ignore all other losses. The so-called E1 pulse at 50kV/m would generate a voltage of 50MV across the wire. Let's assume that lasts 200ns. Power is V^2/R, or (50MV)^2/30mohms=83.33petawatts [3].

That sounds enormous, but it's for a short time. Energy is Pt, or 83.33PW200ns=16.7GJ. To find out how much the wire heats up, let's assume a perfectly straight copper conductor 2cm in diameter. That's a volume of 1kmpi(1cm)^2=1.257m^3 or a mass of 2815kg[4]. Taking energy/(specific heat * mass), we get a temperature rise of 15410K[5]. Copper melts at 1357K, so if the math is right that transmission line would be toast. These numbers seem way too large.

An E3-type pulse from a CME lasting 1000 seconds would generate up to 26kV across the length of wire. That's (26kV)^2/30mohms=22.5GW. Over 1000 seconds that generates 22.5terajoules[6]. I'm not even going to bother calculating a temperature rise for that (okay, it's 20.8 million K[7]). Again, this seems several orders of magnitude off.

I've ignored capacitance, inductance, increased resistance with temperature (up to 170milliohms if I used [8] correctly), and no doubt a lot of other things that would significantly affect the current flow, so keep in mind that these numbers are probably way off. I've also ignored heat dissipation to the air, which would mitigate the energy input a bit but also keep the resistance lower. I welcome any corrections.

Assuming these numbers are completely bogus, it seems to me that an EMP would be more damaging to small electronics, while the CME would be more dangerous for transmission infrastructure.

----

[0] https://en.wikipedia.org/wiki/Nuclear_electromagnetic_pulse#...

[1] http://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=4189

[2] http://large.stanford.edu/courses/2010/ph240/harting1/

[3] http://www.wolframalpha.com/input/?i=%2850MV%29^2%2F30mohms

[4] http://www.wolframalpha.com/input/?i=1km*pi*%281cm%29^2+*+de...

[5] http://www.wolframalpha.com/input/?i=16.67GJ+%2F+%28specific...

[6] http://www.wolframalpha.com/input/?i=%2826kV%29^2%2F30mohms

[7] http://www.wolframalpha.com/input/?i=%2826kV%29^2%2F30mohms+...

[8] http://hyperphysics.phy-astr.gsu.edu/hbase/electric/restmp.h...
"map of int to string"
map [int] string

"map of state to map of int to state"
map [state] map [int] state

In Rich Hickey terminology, it seems people reject that it is simple (non-interwoven) because it does not strike them as easy (familiar / close to hand).

( ...Any excuse to link to this excellent presentation: http://www.infoq.com/presentations/Simple-Made-Easy )
Yes you can. Shadowsocks was intended for the similar purpose of tunnelling traffic and it is a bit more flexible than GRE-based VPNs
In China, the rule of man above the rule of law...the man who accuse the ISP for cannot access google in China has been arrested..(sorry for my poor english..)
Seeing the position of the US and UK governments on encryption is coming in-line with china, I would be careful of traveling to those countries.
When I was in China last year I had no problems using OpenVPN on my Holland based server.
Don't worry, western leaders have figured out one doesn't need democracy or free speech for capitalism to function, China set an example. So with all the spying , ban of encryption , limits on freedom of the press with laws such as "the right to be forgotten" or making illegal to criticize cops or politicians in Spain , we have already entered in a post democratic era . And people in Europe take their freedom for granted forgetting they had to fight to death to win their freedom at first place.
Mycotoxin
Per the other comment, MS-CHAP2 is crackable. The PRC govt is probably happy to encourage people to think they're secure using it.
Really well. The one stumbling block is that git branches are mapped on to hg bookmarks, and it's not quite seamless --- I haven't figured out all the subtleties yet, but it doesn't seem to get bookmark deletion right, for example (the bookmark will reappear the next time you do an hg pull).

I use github as a backend, so I tend to do branch manipulation using the github UI, so this isn't an issue for me.

Everything else Just Works. Highly recommended.
It's of no use. If he's lucky, he would "receive" a fabricated charge; if he's not, he would simply disappear.
It already comes a few years ago when Xi got the power..(I mean the hole country is in winter, including movie Animation..)
AI – Thought vectors
Sure, that is not the best point, but I like to have as little stuff as possible installed and polluting servers with Ruby doesn't feel right to me. Of course this is just a personal taste.
It was blocked months before.
> "My cousin in Perth was earning AUD$100K+ driving a bus. But...you guessed it...as a fly-in, fly-out employee of the mining industry in Western Australia."

I wonder what the pay would be if the Australian mining industry wasn't so corrupt (this isn't a slight on your cousin in any way, it's those who arrange the tax breaks and lie about the economic impact of mining in Australia that are at fault)...

http://mobile.abc.net.au/news/2013-06-25/nrn-dist-mining-sub...

http://m.theaustralian.com.au/business/mining-energy/mining-...
Can't agree more..(same as a Chinese developer)
Absolutely. He's a charlatan.
Was in a bubble, it's not looking too hot now with current iron ore prices.

$40k is staggeringly crap pay for a chef; minimum wage for a full time job in Australia is about $34k ($17.29/hr minimum wage). Average salary is somewhere north of $70k and that's roughly what my brother in law earns as a full time chef.
aliyun sucks when connect to github
Here is report of one life ruined by modafinil
https://www.erowid.org/experiences/exp.php?ID=92932
On the one hand that's some admirable persistence right there.. on the other I don't know.. how would you feel if your doctor had been rejected 14 times from med school before getting his degree?
Is this then a sign that the network architecture of back hauling everything to SF in order to send it back to Beijing so one can update ones neighbours wall, that architecture is flawed and needs to fall back to a peer to peer approach - one that truly can route around censorship
Apple have recently made a few changes to how you enable/disable System Integrity Protection...

https://www.reddit.com/r/osx/comments/3hv3kk/update_on_rootl...
Move to Shanghai. I make 20k rmb a month, roughly 2.5k usd and rent is a fifth of that. I eat out regularly and save half what I make. I teach English too.
687 forks. Good luck to the authorities!
can't agree more, law in china is a laugh
Wow, I'm surprised by the amount even in my small city in Sweden!
A little bit off-topic but... what are the cognitive benefits of solving mazes? Would it be good to increase our concentration/focus on things?
Hi - heads-up, your site http://symbolflux.com seems to be down.
How the Sophia database works internally
This is literally the second paragraph:

"The goal, as you might recall, was to go into a closing warehouse of manuals, take as much as we could, and store it somewhere so that it could be properly “dealt with”, with the rest ending up in the trash."
Maybe this is a not-so-frequent thing, but I know it's not just me: As I see it, the big advantage of Git over other attempts at DVCS is that its internal model of the world is very simple and just right.

Early on when Git was still new, I read about the different types of objects (files, trees, commit objects) and how they interact, and everything just clicked. It's the correct model for version control, and I like to believe that that's why it's winning.

In fact, all your praise for Git is something that, as far as I see it, flows directly from Git having the correct model for version control.
Solid points - especially the left turn thing and neighborhood lights. Half my commute is caused by waiting on a major road for one car to pull out of a tiny street.

This is a slightly more nuclear option, but a fleet of self-driving cars operated by a third party (like Uber or Lyft etc) could hit the problem at its main cause - too many cars on the road. Most cars spend the majority of their time motionless, if the ownership model changed, the the cars in use could operate nearly all the time, driving directly from one pickup to the next. This could significantly reduce the number of cars required, removing all need for street parking and freeing up the majority of off-street parking.

Less cars on the streets = wider city streets for free, and self-driving cars could more efficiently use that extra space. There would be other side effects too - coordinating carpools would be relatively trivial, and people wouldn't have to worry letting strangers into their personal vehicles. The freeways could operate at higher speeds with significantly less follow space and lower friction at interchanges. Routing optimizations (like what you describe in #1) could be implemented at large scale, and the whole grid could effectively be load-balanced.

Some people will still probably want control over their vehicle; individuals could still own private cars alongside the shared model. Those cars would just be like private autonomous limos. This option could let people who could afford it use their car as a private office during the commute, without having to take all of their things out after every use. Families could more effectively share a single vehicle, because it could drive back home after the daily commute. I'd imagine that most consumers would opt for low cost and no ownership risk over that convenience.
Yep, no money to renew web hosting atm :(
> What is this, third grade.

What are we, in a retirement village?

As long as the science is good, I don't care how it was written. Could we at least get the reporting to be factual before we worry about proper style.

And I thought it was kinda novel unlike the research paper which is a pretty hard read for someone not researching this topic.
3D Printers with GoLang and Raspberry Pi
Government used to block Github in past few years.
Then lots of programmer strongly disagreed with it.

however,browse github has been harder in 2015.

I love my motherland but i really hate what the government has done.

sorry for my poor english
Russian parliament asks to prohibit Windows 10 use in state organizations
How I share your thoughts.

Been in the industry since the late 80's. Eventually one gets tired of listening to every single fad.
I really like C++, but I think it mainly won because it was friendly to the huge number of programmers that already had years of experience with C at the time. Easy use of existing C projects was also a huge benefit.
Since they get the cashmoney from the sponsoring search company/ies doesn't that (in web 2.0 language) make us (Firefox users) the product?

So literally, the only thing we can do is to stop using Firefox and wait it out?

Is there any way to block the install reporting? or to keep using Firefox without passing on the "hits" to Mozilla reporting systems?
That could presumably be solved by allowing developers to sign their own add-ons and tying the ID to the key they used to sign it - it doesn't require a centralised signing system of the kind Mozilla introduced.
> This is the market at work

We hear this in the UK quote a lot about the pay of charity CEOs e.g. National Trust ( looks after old houses ) £180k salary, Dogs' Trust is £120k, Salvation Army £150k.

I think it's the result of the Boards and Trusts of organisations being staffed with Directors of other market organisations, rather than those concerned with the charity alone.

To them these salaries are par for the course, whereas to the potential donor looking in it is difficult to associate the levels of renumeration with the goals and performance of the charity.
In what way has that book changed your way of thinking?
Analyzing Crop Yields by Drone
> That's all. The winter of China's network comes.

Is there technical reason to believe that shadowsocks or similar technology is the last stand against automated censorship?

I would just say this is just yet another stage in the censorship/anti-censorship cycle.
Want to learn how to talk money with your children?
Now the company doesn't exist anymore, but Burroughs was very influential company once and they had their model B25 which they already advertised in 1984 and it already used the "books on a shelf" method:

https://commons.wikimedia.org/wiki/File:CTOS-B25.JPG

The magazine ad in "Black Enterprise, Jul 1984," obviously produced earlier:

http://s10.postimg.org/si1xx4l89/B25.jpg

To compare, the article about the Jonathan computer starts with "in late 1984" and the mockup was "unveiled to the Apple Executive staff in June 1985."

There were the real products in use in the "books on a shelf" form and the form seems to be convenient.

The reasons for the rejection are certainly interesting, maybe the real reason why the form didn't survive.

> Jean-Louis Gassée, who at time was Apple’s VP of Product Development, observed that they would have to sell two or three Jonathans to equal the profit of a single Macintosh II.

Apple even today prefers to sell "everything at once" (like the iMac, or the effective weakening of the newest Mac mini lineup).
I don't think Amazon and the other corporations perceive this as a broken system. It looks like they want/designed it like this.
I am the founder of Codeanywhere, and I totally agree with ajhit406.

This is why we active support non profits like Coderdojo and Codestarter (while it was active).
To be honest, miles on a bike is not much difference from miles in a car. Average speed is like 10 mph, without any of the traffic jams.
You can take something like LLVM, add a backend for a new processor or a new programming language and never release it back to the LLVM developers.

Thus getting for free the work invested into LLVM, being able to sell the modified version and LLVM developer don't see a dime from it.
Overwork is directly related to the impossibility of measuring performance, and the cargo cultish attempt to increase output.

Say you're doing some white-collar job, like managing a set of accounts for a large corporation. In all likelihood, you didn't build that business. You inherited it from some other guy. You can't say to your boss you're responsible for 100M in sales, because a good chunk of that would have been there regardless. There's also the noise: other firms are doing things too, there's an economy that goes up and down, customer orders may be lumpy. So how much did you make? Hard to say.

What you can do is to look like you really care.
My "career" is the prof one can have a career without being a slave of capitalism.

It helps when companies play by the rules with the Works Council and the respective unions.

And yes, I am one of those guys that would disclose bad working conditions to the Arbeitsamt.
I think the "enterprise support on premisses" is the main deal, along with the fact that we have already used it for some of our big projects.
Ok. I'll drop you an email and see if I can help.
In praise of Bayes (2000)
What if you could earn a living wage on part-time hours, would you take that opportunity?

The underlying message of the article may be not obvious at first, but my impression was that it's a criticism on the effects of unrestrained competition.

On the surface it's about how the game is structured, people are rewarded for the hours spent working rather than their work output, and questions about why do we need to do more work once the work we have signed up to do is done. However, if you dig deeper a different message emerges... imagine every worker was on flexitime, and could choose how much or little they worked so long as they got their tasks done, companies would start expecting more and more tasks to be done right? The blame for this isn't solely with the employer, whilst they might be partly motivated by greed, there is also the issue of competition, and as a general rule the more competitive a market is, the fewer resources are directly available to a company, and the fewer resources available the more demands are going to be placed on the worker.

Imagine what work would be like if we didn't need to compete in order to earn a living. It's not a pipe dream, it could happen, for example a universal basic income would be a step towards this.
>then you can probably get into the BACK of the popularity line, after REBOL or whatever

I don't know. Golang, Rust, Clojure and Scala seem to do quite well for themselves, quite better than Smalltalk.

I don't have exact numbers of course, but considering job postings, use by high profile companies, books coming out, conferences, tooling created, blog posts and HN articles, they are way ahead of Smalltalk today.

Besides this:

>as basically you aren't worthy... not even close to worthy...

Sounds fishy to me. Even if you're not worthy there's no reason not to try if one wants to. And that's how we do get the 1 in 10.000 languages that ARE worthy anyway.
nanoDLP is a Raspberry Pi Based Host Software for DLP based 3D printers.

How it works:

It gets ziped PNG files of layers as input

Output the images on HDMI port of RPi

Control Z-Axis Stepper motor directly through driver
Exploiting Similarities Among Languages for Machine Translation (2013)
Somewhat anecdotal, but try IPv6.
Internet Download Manager 6.23 Crack Full Free Download
Yes, but how many C# projects ever need that scale? If it's an internal enterprise app, the bread and butter of C# apps, it's a totally useless optimization. It wouldn't reduce the size at all.

The kind of web scale business that should be using async, let's be frank, those kind of projects don't use C#. Go look at the YC list of technology, not a single C# user on there.

If that's all you the benefit of using async is, it hopefully looks like I'm ok not using it.
Sounds like an overseas vendor needs to drop a blanket of satellite internet coverage over mainland China.
Rather than comparing the availability of modern conveniences, it's more informative to compare stability. Are modern lives more stable in the face of unexpected events than historic lives? Is getting sick for a few days and then getting better worse now, or worse historically?

I would argue that the levels of instability make modern stresses higher. Even though there are many luxuries to help deal with these stresses, they are maintained only tenuously. The slightest disruption to a break-even lifestyle can result in disaster, and even if everything goes perfectly there may not be any spare cash to save for an eventual escape.
That's mixing speed up with volume. It would only matter if the volume of requests was higher too. If everything runs faster, the number of required threads goes down as the requests will be less likely to happen at the same time.
>As long as the science is good, I don't care how it was written.

That's a bad attitude to have. Sloppy writing messes the science the same as sloppy measurements. Science is not some inate quality, it stands by how well it's communicated.
Glad to see that this guy doesn't appear to be politically connected. So many astros are that I had assumed anyone taken into the program so late in their career would be related to a senator or three. It's nice to be proven wrong.

But I remain under the impression that astro selection is very political.
Trial and error is not ugly
If you can flash these phones then $50 would be great for a GPRS/Bluetooth/Wifi development kit.
A Plea for Culinary Modernism
I think the astronauts are more patients than doctors. They are test subjects. Every move in space is carefully planned by committees on the ground. No doubt it is a demanding job requiring all sorts of skills, but it isn't the same as a surgeon. Absent some worst case scenarios, responsibility and decision making is far more shared.
Out of curiosity, how do you deal with not having some of the things that IDEs support?

I too am firmly in a text editor camp, but I've recently been basically forced to use Eclipse while writing Java (ick) at work. The fact that it knows a lot about the code is invaluable sometimes - auto-importing package names as you type, fixing build rules in other files automatically, code completion, type-definitions that appear with inline usage notes, etc. Granted, enterprise Java in a build environment is the ideal use case for an IDE, but many of those features are useful all the time. Now when I write other code, it feels somewhat archaic that my text editor of choice isn't giving me function docs/typedefs and managing dependencies as I write.

As much as I despise the text editor in Eclipse, living without those things is basically impossible. I have "solved" this problem by constantly switching contexts between my editor of choice and Eclipse, whenever I need to do something crafty. What do other people do about this?
now we know how many holes it takes to fill the albert hall
"on some misguided operating systems" — on which well-thinking systems does printf crash in this case?
For me Modafinil does not help me to concentrate at all, instead making me feel non-jittery-jitteriness is the only way I can describe it.

If you are looking for cognitive enhancement and focus improvements nothing will help more than yoga and meditation.
Sounds like you live in a world where you didn't notice that China became the second most powerful economy, and which will become the most powerful economy within a decade or so. Of course they're going to have the military to go with that:

https://en.m.wikipedia.org/wiki/2007_Chinese_anti-satellite_...
I agree, performance-led cultures can lead to overwork, but non-performance-led cultures can do the same. Let's just say I've worked in companies where the level of bureaucracy and inefficiency has been sizeable... copious amounts of meetings, work that could easily been handled automatically been done manually, etc... I didn't say anything because I didn't want anyone to lose their job, the company was still stable enough to support the people they employed, and whilst I don't regret that decision, there's no doubt it added to people being overworked.
I believe one of the tricker question is whether your revenue is truly recurring.

E.g. you may say consulting services or just charge monthly support subscription.

Especially in short term it is easy to convince yourself that it is recurring (e.g. monthly access to tutorials) when really churn is so high, since people use it on-need basis rather than long-term.
wish you all the best. I pay 5$ for a digitalocean droplet to provide my family in Iran with an OpenVPN connection. This works quite well, we do not have any issues so far.
Did Google decide India’s election?
Modafinil has always made my mind feel like a jet engine out of control! And I have never managed to avoid having headaches the next morning.
Terminator, multiple terminals in one window
Really sorry, down voted you by mistake with a loose finger. App I use has moved the vote buttons right where I scroll.