skysight-inc/HackerNews huggingface dataset:
No. Even if shit gets real and the reactor goes Chernobyl, Japan is sufficiently far away from the western world that it doesn't matter at all. People weren't concerned about radiation from the nukes in Bikini either.
I think you're right. I'm not sure on how PWR vs BWR plays out in this case though, but it definitely seems like they knew this explosion would happen. It looked very "controlled", even if it seemed like there was a lot of vapour and debris on video.
I read somewhere that this design does not have a containment dome. So basically containment wise (in comparison to Chernobil) this reactor is a bit better that it uses reactor containment vessel, but it does not use containment dome.

I also read that on TMI a similar hydrogen explosion occurred but it was contained by containment dome.
It was this one, last June: http://en.wikipedia.org/wiki/2010_Central_Canada_earthquake .
Hewlett Packard to Switch to WebOS on Future PC’s
However they're "classified", some of them (ABWR, ESBWR) work by boiling water inside the core at atmospheric pressure and using the steam to turn a turbine, and some of them (AP1000, EPR) work by heating pressurized (borated) water inside the core, which then transfers heat to other (pure) water at a steam generator, which (pure) steam is then used to turn a turbine.
Got a mail from WANO relayed to me, below is the interesting part about the explosion.

-----

1. Hydrogen explosion occurred at 15:36 between containment and reactor building of Fukushima Daiichi unit 1. Walls of reactor building were blown out or damaged.

2. It was confirmed that unit 1 containment integrity was maintained.

Explosion was not inside the containment as it is inert.

3. Radiation level at the Fukushima Daiichi site border once increased when containment vent was conducted and reached 1,015 micro Sv per hour around the time when explosion occurred; however, the radiation level turned to decrease after the explosion down to 860 at 15:40 and 70.5 micro Sv per hour at 18:58.

4. Government has agreed to TEPCO decision to fill the entire containment up with sea water. The filling sea water will contain boron. TEPCO started the work for filling up at 20:20.
Ask HN: How many of you are still going to Chirp?
Given Twitter's latest dick move towards the ecosystem, I'm wondering how many developers / entrepreneurs will still be going to Chirp?
The reason for the building blowing out:

"Edano said due to the falling level of cooling water, hydrogen was generated and that leaked to the space between the building and the container and the explosion happened when the hydrogen mixed with oxygen there."

It looks like they're about to use this:

Low Pressure Coolant Injection System (LPCI)

Then this:

Standby Liquid Control System (SLCS)

http://en.wikipedia.org/wiki/Boiling_Water_Reactor_Safety_Sy...

Looks like they've given up saving the reactor.
iPad Starts in an Instant
Fukushima reactor emergency: media clip service from American Nuclear Society
How this works...
Henry Baker has copies of many/most/nearly all of his papers on his home page, in this case: http://home.pipeline.com/~hbaker1/LinearLisp.html
Ask HN: Any example of a community owned web service? (thinking of Twitter)
we know open source software, community driven standards like W3C and Unicode, etc. why not to make a Twitter clone so that everyone would be free to use it in any way? are there some examples of something similar? big members like FB, MS, Google would pay for hosting, bandwidth :)
The entry point for new smokers is a little older than 10. I think it's more like the early teen years. At that point, I think the "gruesome is cool" phase has abated a bit. Besides, the attraction towards gruesome has to war with young people's preference for sweet tastes. There is nothing sweet about the smell of cigarette smoke. It's incredibly bitter and acrid smelling. The smell was one major reason I never tried tobacco despite both my parents being smokers.

To catch young people in their market, I think tobacco companies focus more on teens' need for social belonging and defining their identity.
Be kind and provide some references.

I'm pretty certain that heavy industry is helluva big consumer.

Regarding home cooling and heating - I would expect that at least heating is primarily done via other means not electricity. Cooling may be a bigger problem, especially in the most developed countries.

In any case I agree with you that we need to make our housing more energy efficient. And there are a lot of ways to do it, once we realize that concrete bricks might be fast and cheap to produce but beyond that not quite the best option.
Yes, PWR vs. BWR is definatly an issue when comparing the two events.
Spellchecker for the DOM
I suspect the decision to use sea water to cool the reactor means that they have decided to write off the plant. It was 40 years old anyway and nearing the end of it's service life.
Video CAPTCHAs Promise Better Security, Less Frustration
IPad 2: Don't take it apart, or risk cracked glass
The Three Mile Island accident occurred on Wednesday, March 28, 1979. TMI Unit 2 received its operating license on February 8, 1978. So the Fukushima I appears to be slightly older than TMI.
Well not any robot will do in high radiation environment, since radiation tends to fry their circuits...

They tried it in Chernobyl but it didn't really work, so they had to use humans to do it. Every soldier got to run in, move an item, run out and be dismissed from this nuclear cleanup duty, due to irradiation received in this one try.
EMBARCADERO DELPHI ENTERPRISE NEW USER
Embarcadero Delphi enterprise new user is programming software.
Hey, I have a video for you to add to the list of Summer 2011 applicants.

http://gamerhighway.posterous.com/
Internet declares war on Louis Vuitton
Pics of Verizon HTC Incredible 2
Gen. Wesley Clark says Libya doesn't meet the test for U.S. military action
What Does Anonymous Have on Bank of America?
It is worth mentioning that France is still big on nuclear and we will likely be buying French power from nuclear plants.
Personally, while high oil prices hurt in the short to medium term, hopefully it sends the US economy towards less dependence on oil. To me, this is a good thing. I just hope the US is smart enough to invest in reducing demand rather than increasing supply.

Also, if this type of story is interesting to you, I highly recommend Paul Krugman's blog at http://krugman.blogs.nytimes.com/ . Also NPR's planet money (blog & podcast) has great information and is much less slanted than Krugman's. http://www.npr.org/blogs/money/ .
GNU Emacs 23.3 Released
he lied a number of years ago about what he'd supposedly done with wifi, a couple high-gain antennas and a corner reflector.
FUKUSHIMA DAIICHI-1 was already scheduled to be shutdown this month.

http://www.icjt.org/plants/uni/a/uni194a.html

neutronicus has even more reasons why what Bob says is very likely wrong.
Backup: a RubyGem that allows you to configure and perform backups
I like to have heated discussions... Helps getting to the deepness of the topic :)

I think I provided more link that most of the people contradicting me here. You are one the few providing links.

Yes you're right: note than electricity is a subset of energy, so the part of nuclear in the total energy produced is even smaller. Think of transport. Electricity heating is strong where nuclear is strong, take France. So I think both are related, but your point is still valid.
While true, this reactor was built by General Electric in the late 1960s.

http://www.icjt.org/plants/uni/a/uni194a.html
maybe not in Japan, but here in Hawaii, oil is used to make electricity.
Except the prevailing winds called the westerlies would put the radiation over California in a matter of days.
the end of its service life was this month!

http://www.icjt.org/plants/uni/a/uni194a.html
the generators in question are used to run pumps. you wouldn't need to phase match them to the plant's electric system, per se. (you would need to phase match them to the other generators, but that is straight-forward)
Themes of nokia 2730 classic Ship
What happens when you hire someone new?
Does anyone know what the flashing colors and lines separating regions on the map of Japan in the lower right of the screen represent?
Music As Data - Music programming with Clojure
Areas under Tsunami watch (I believe)...
JFK's problem was that he wasn't sufficiently terrified.
Someone has compiled information about the structure of the reactor in question.

http://uvdiv.blogspot.com/2011/03/some-links-on-fukushima-da...
Jeff Vincent: You can always finding him listening to good beats.

I'm thinking this is a typo. I mention it in hopes of helping you present a good public image. God knows, I can't proof read my own crap.
I don't understand what you are trying to say, the moderators only improve the grammar or remove spelling mistakes. They never (in essence) change the question, they help the person get the question across properly.
> It will not greatly affect the orbit of any satellite, because the Earth's center of gravity can't be shifted ...

Even if the center of gravity is not moved, there is an impact on trajectories. We are used to use a simplification that consider only the gravity center (using this theorem http://en.wikipedia.org/wiki/Shell_theorem) but this theorem doesn't apply if we want to be really precise.
I find this rather scary; most 'programmers' under 20 I know 'learned' programming like this. I mean; most PHP programmers you'll encounter on the web only know how to combine snippets; they don't think for 1 minute, they just search everything they need, copy/paste, change a bit. And what is frightening that actually quite large sites are made like that. And this practice gaining popularity too.
WNN (http://www.world-nuclear-news.org/RS_Battle_to_stabilise_ear...) was updated with news that the sea water injection has started.
As someone who used to smoke "Black Death" cigarettes, I'm inclined to disagree. Perhaps they should put Goatse on each pack, and then people wouldn't be inclined to carry the packs around.
Yeah, Ben Goldacre is a great read. If you are interested in bad science from a medical angle (as opposed to 'creationists are being silly' kind), then check out his book Bad Science or the rest of his website
Anyone know what kind of drop tests these devices are subjected to? For our industrial handheld devices we need to survive 6ft on concrete multiple times and end up potting connectors and stuff like that. I don't see anything like that in the iPad.
The only use I've seen for it is making trinkets (paper knife anyone) out of wood. Like carving but less refined, only using ones general duty knife not carving tools (chisels, etc.). Like scrimshaw but using wood only and not spending so much time and care.
Know why Japan is now clearing all this up now?

Cuz the USA offered to send emergency help.

Imagine the USA team going over and finding nothing really happened, an entire hoax.

This bombing was crafted to short the stock markets.

It's pitiful what the rich do for their market gains.
The Best Entrepreneurs Have Some Common Traits
I have a feeling most people on HN know how to calculate the area of a circle. ;)
Tweetdeck is pretty good.
I thought we are not supposed to post stuff here thats reported by ordinary news channels.
5 Reasons Why Corporate Partnerships are Important in Social Entrepreneurship
What about errors and exceptions?
Will they propagate to the calling side?
That 's cool! Music notes as variables and code at the same time. Genious!
I depend on my GMail account for business and I am not enthusiastic about authorizing 3rd party access.

I think a better idea would be a local app that indexes our own material, keeping local search indexes and that shares nothing with 3rd parties.
Thx for the post! Feel free to ask anything you like!
According to our data, 90% of active Twitter users use official Twitter apps on a monthly basis.

As soon as I saw that, I immediately thought "I'd like to see the breakdown by tweet source," since that's really just a hollow number that means that 90% of active Twitter users sign into Twitter.com at least once a month. Much, much more of the actual content creation and consumption still happens on third party apps.

And to continue the recent pie chart hate on HN, I really wish this was just a series of bar graphs or something that gave me exact numbers instead of having to guesstimate that web makes up 1/3rd of tweets.
I think there's also a big difference between learning as a team and learning as an individual. You can probably become a very good pianist on your own if you follow lesson books from start to finish. It's harder as a team because the social interactions are too many and too varied so you need an outside observer.
The things we should fear are myocardial infarction [1] and cerebrovascular accident [2]. These are what will probably kill us in developed countries [3]. The good news is that we know how to prevent many of these deaths: regular exercise, not over-eating, not smoking and moderation in alcohol and drug consumption. Other causes of death and ill-health are also reduced by these actions.

[1] http://en.wikipedia.org/wiki/Myocardial_infarction
[2] http://en.wikipedia.org/wiki/Stroke
[3] http://en.wikipedia.org/wiki/List_of_causes_of_death_by_rate...
Building FrostWire on a new MacBook Pro vs an older model
I think a Twitter inspired version of this already exists:

http://identi.ca/doc/faq
20 of the World's Most Famous Libraries
20 of the World's Most Famous Libraries
I tried adding this to my tumblr, but the hello bar unfortunately conflicts with the tumblr controls at the top right (it gets pushed down). Not sure how to resolve that. :/
I'm confused by trying to join a channel without seeing a clear list of what channels currently exist and how many people are in them (two things which you can do in IRC and most chat apps). So I can enter any word in the box and "Join Channel" and just hang out in there by myself? That made me think, this is a good use case for private chat where you could tell your friends "join me in 'secret' channel" and they could do so, without being listed on the site. That would be cool. However, since I was just taking a look at it by myself I couldn't test that. Does the landing page look different if you are signed in? I'd like to see an About page on there to get a better idea of who is running this site before I give over google/facebook login.

Pros: I love the name and the simplicity.
Can you add a 3D graphics library as well so we can have an awesome (modern) replacement of http://www.pawfal.org/fluxus/ ? :P
Exactly. It's not the commodities that's rising, it's the fiat currencies that's falling.
I smoke and know a lot of people who does as well, and I can confirm that these imagery has little to no impact on smokers. I believe it might affect young people who are about to become smokers, but I seriously doubt it.

It's an addiction after all, and I doubt if you wrapped any other drug (cocaine, meth, etc.) in a bag with these images drug-addicts would stop buying. Most likely, the anxiety of seeing something so horrific would make a drug-addict use more substance to escape from yet another worry.

I'm not into conspiracy theories, but in this case, I believe governments make too much money through cigarettes to really want to help people quit. These measures are just to make them look morally correct.
I'm curious. Did the imagery influence your decision to start or your decision on which brand or both?
The Highly Effective Habits of Millionaires
"If NaCl gains enough traction, Chrome could become the next IE6."

Since Chrome and NaCl are both Open Source and Auto Updating, this has to be the dumbest analysis ever.
I have an 11 year old daughter who I help with math homework every week. Some of the new methods work for her, and some are terribly confusing to her. I think it's good to expose kids to a variety of methods in math. I am concerned, however, and the near-complete lack of emphasis on memorizing the basic math tables and doing calculations in your head. Doing that at a young age really helped me to understand numbers. Many of the techniques they teach in school are techniques I figured out on my own by exposing myself to large numbers of calculations.
I'm sorry, was that a stupid question? Perhaps you could have told me why after you downvoted.
Either way is fine, I think, if you the child understands the underlying mechanism. I'm the father of a 3rd and 5th grader in US public schools and I think the math curriculum is very good. However, sitting down and explaining basic arithmetic is important. I also teach them to estimate and come up with a quick upper and lower bound before they start the problem.

I went to school in Germany and our methods of multiplication and especially that of long division were a little different. When I first looked at the way long division is done in the US I thought it was confusing and my first reaction was that my method was better. It took a little time to overcome my cultural bias but I'm all better now.

Still waiting for the US to switch to Celsius and metric, though...
<pedantic>
True, but calculating the land area by doing so is a mistake because ~50% of that 20KM circle is over the ocean.</pedantic> http://maps.google.com/maps?hl=en&biw=864&bih=471...
This is somewhat misleading. Yes, it's true if

3 * 123456789

counts as one multiplication.

But if you're doing the 'old' version you implement it as 9 single digit multiplications:

3*9, 3*8,....,3*1

all written down with appropriate carrying.

If you do it with the new method you again get 9 'single' digit multiplications:

3*9, 3*80, ..., 3*100000000

which you then add up.

---

The old methods efficiency comes from writing the steps out in a compact notation, not from reducing the number of multiplications or additions.
> Is it fraud to "market" something in a not-entirely-honest manner to someone who is not and will not be your customer?

IANAL, but my reading of UK law is yes. The relevant law is section 2 of the Fraud Act 2006 -- http://www.legislation.gov.uk/ukpga/2006/35/section/2

Fraud is (I paraphrase) lying to get money. It doesn't matter if the person you're lying to isn't the person you're getting money from.
The Science of Stout Beer
The Top 18 Billionaires In Tech
Only the first page of the full article, unfortunately; I hit the login wall when I try to go to page 2.
First, I am not against nuclear and hope the fallout from this incident isn't used as fuel for damaging propaganda.

But this >Solar? Workable on small scale, physically impossible to provide the majority of humanity's energy needs. is wrong. Efficient use of all sustainable earth's solar input is a hard engineering problem (how best to stick satellites in space and then efficiently radiate back to base stations) but not impossible and would compete with anything Fusion (yes fusion) could produce. The world's current usage is estimated at 1.6 x 10^13/yr watts while 5.2 x 10^16 watts (30% of the sun's constant input to us) is completely reflected and never used by Earth.

And the end game in some far flung future would be solar taken straight from the sun. The Kardashev scale is a probably not useful but nonetheless interesting take on this.
> Making every part in a device like the iPad replaceable would not make a very nice product at all.

Why not? What is wrong with sockets? Or plugs? Or screws? How would they make the IPad significantly thicker, heavier, more fragile, less powerful, or clunkier? It would at worst make it 10% more expensive. But that would waste so much less resources when it's time to upgrade, or when one piece is broken. Oh wait, it wouldn't be as profitable, so let's pretend it just sucks and forget about it.

[a]: Good example, actually. They could either have put the camera anyway, knowing the software could be patched later, or just wait until it's ready, or make it possible to add the camera later (maybe requiring an approved specialist to solder it on). They just preferred the more lucrative path. Like nearly everyone else in this planet. I can hardly blame them personally for that, because:

> Indeed they would be stupid not to capitalize on that.

From a selfish point of view, I agree: companies would be silly not to do everything in their power to maximize profit. Even taking advantage of human weaknesses, or waste resources, or dumping trash in the wild, or <insert lots of horrible things here>.

I just say that something is wrong with such a system.
> But I think that layer is best implemented in Javascript upon SVG/DOM.

Could you, please, elaborate on this choice?

Why not, for example, Tcl/Tk? For a simple example, take a look at http://www.tkdocs.com/tutorial/firstexample.html. I doubt it would be simpler in any combination of HTML+CSS+SVG+JS (and, for example, it would be problematic to have system-wide look-and-feel)
I agree. For learning, the method shown is fine. Why? Because it teaches and honors place value, an extremely important concept in developing numeracy. I'm fine with any method that uses that.

I am not fine with something my kids call the "lattice method." The point of this method is simply to get the correct answer for multiplying large numbers. Is it clever? Yes. Does it work? Yes. But it does not teach math. If the educators' goal is simply to give a technique that works and gives the correct answer, teach them to use the calculator on their cell phones.

Lattice method for multiplication:

http://www.coolmath4kids.com/times-tables/times-tables-lesso...
This is your lucky day! It's built on top of processing so you have access to awesome visual effects!
Trolling? Performance irony? Confusion?

"Reading the book" of your text, I just can't tell, but if we were face to face I could probably feel out what you were doing. Some things, especially assisting learning, require intense feedback loops, which happen much better in person. You can learn heaps from books, but a book can't notice when you've gone off track...
AND helping yourself, making your name known on the web

so that you'll be easier to be hired or funded! :)
The comparison doesn't make much sense.

Google has a wide range of services in multiple fields, while Facebook has a single product, a social networking platform.
Lean Startups Rule
on both my old machine (2.8 GHz Intel Core 2 Duo with 4Gb ram 1067 MHz DDR3 and a regular 7200 RPM drive) and a new MacBook Pro (Intel Core i7, 8 GB 1333 MHz, and a solid state drive)

I suspect the results are more based on the addition of the 4GB of RAM and the solid state drive. I have the last gen of core-duo with 8GB and the 250GB SSD and after playing with one of the latest models I decided to forgo this refresh and wait for the next.

While there is definitely a noticeable difference, it really was not enough for me to chuck down another 4 grand for a top of the line MBP 17. I think if someone already has a last gen like the authors machine he was replacing, they may get more bang for their buck by upgrading the 4GB to 8GB and swapping in an SSD.

I use mine for pretty much the same uses, lots of virtuals that run all of my servers and compiling apps. I never ran a 7200 RPM drive, as I bought mine from the factory with SSD, but I did order it with the 4GB and later upgraded to 8GB which did make a remarkable difference in the performance of my virtuals.

SSD is definitely one of the biggest performance boost you can do, if one is looking to upgrade on the cheap and does not already have a SSD I would suggest making the move to SSD. The performance gain is very noticeable.

I would like to see what the same task done with 8GB and SSD in both machines would result in. While I am sure the new processor and memory architecture creates a noticeable improvement, it would be nice to see and Apples to Apples (pun intended) comparison.
Everyone says stupid things on emails. Specially on PRIVATE emails.

It is funny, sounds stupid what he is saying, but how many stupid things we say on email, IM etc on a daily basis? Don't judge just because of it...