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+ - 32 Raspberry Pi cluster built to support PhD research->

Submitted by Noryungi
Noryungi writes "Joshua Kiepert, a PhD student at Boise State University has created a small 32 node Beowulf Cluster, (PDF paper) running Arch Linux to support his PhD research. This allowed him to avoid running his simulation on the official (Xeon-powered) cluster of his university for a cost of slightly less than US$ 2000 — which is the price of a single Xeon machine. While the cluster will never break speed record it allowed him to work on his research for quite a reasonable price."
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Comment: Re:"Importing" labor? (Score 3, Insightful) 292

You're confusing Europe for the United States. We just made labor exploitation legal. Not exactly a new concept -- the H1-B visa program might have screwed up, but we built our entire railways at the turn of the last century on the backs of chinese immigrants. The European Union has much stricter laws regarding labor exploitation, and also immigration. It's flat out near-impossible to immigrate into many of those countries.

Nope. First of all, re-read the original article: we are talking about people working illegally in European countries. It is entirely possible to move to Europe illegally - just like in the USA, get there with a student (or tourism) visa and just stay in the country instead of going back home. Sure, it sucks because you can be caught (asked to provide valid ID, etc.) and sent back to your country, opening a bank account, renting a place, etc. all of these things are somewhat harder to do when you are illegal, but they can be done in every European country that I know of.

Second, European laws are sinking very fast to the level of the USA. More and more EU countries, under pressure by the same kind of people that are described in the article, are dismantling the only thing that makes life bearable: the protection they gave to their workers. In France, where I reside currently, a law is being considered that would make hiring/firing even easier than in the USA, while reducing social benefits, including firing compensations and unemployment benefits. And it's the same thing pretty much all over Europe.

Remember that unemployment is rising to never-before-seen levels. Youth unemployment stands around 25%-30% in Southern Europe, and sometimes much higher. In the meantime, start-ups are looking at illegal immigrants for techie jobs... Why is that? Because, yes, these people want to stuff as much money in their pockets as possible.

Again, this has nothing to do with finding labor - it has everything to do with screwing Joe Techie. Same as the US H1-B visas.

Comment: "Importing" labor? (Score 5, Insightful) 292

Yeah, right.

It's more like: "We don't want to pay proper wages for good techies, so we are breaking/bending every rules to exploit cheap illegal labor and keeping more of the venture capitalist money for ourselves".

Seriously, I have seen this in many a start-up, in France and elsewhere: pay people low - even though their knowledge is what makes your bloody start-up possible - and fire them as soon as they start demanding correct wages and reasonable working hours. Meanwhile, the CEO is looking for the nearest Porsche dealership. It's simply disgusting, and it has nothing to do with France laws and regulations (which can be a pain in the neck, I admit).

+ - Hanford nuclear waste vitrification plant "too dangerous"->

Submitted by Noryungi
Noryungi writes "Scientific American reports, in a chilling story, that the Hanford, Washington, nuclear waste vitrification treatment plant is off to a bad start. Bad planning, multiple sources of radioactive waste, leaking containment pools are just the beginning. It's never a good sign when that type of article includes the word "spontaneous criticality", if you follow my drift..."
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Comment: Re:What's mild to moderate? (Score 1) 190

by volkerdi (#43639843) Attached to: Tylenol May Ease Pain of Existential Distress, Social Rejection

Aspirin is actually used as the generic name in the US (and Canada?) from what I understand. It's certainly easier to read and remember, but doesn't say anything about the structure of the molecule.

Neither does acetylsalicylic acid. The IUPAC name is needed for that, which is 2-acetoxybenzoic acid.

Comment: Re:Early Crimefighting Crowdsourcing in Salem (Score 1) 270

by radtea (#43526637) Attached to: Crowdsourcing Failed In Boston Bombing Aftermath

But that's not the same as a lynch mob.

"Better than a lynch mob!" is hardly the standard the American legal system once aspired to. Although I guess people with darker hued skins might disagree.

There are innocent people being held in Guantanamo Bay without access to the rights that the American legal system was supposed to protect.

Shrugging and saying, "Well, at least we aren't burning anyone at the stake! I don't see what you're making such a big deal over!" is not a civilized response to this situation, and making out like the procedural snafus were the biggest issue kind of misses the point.

Comment: Re:Will Box for Passport (Score 1) 1109

There's only one thing all terrorists have in common, and in light of recent events I thought it important to point it out. You know what I'm talking about, don't you? It's the one thing that unites terrorists all over the world, from the United States to Russia, India, the United Kingdom, Japan, Spain, Italy, Germany and even Canada?

In every case you find one and only one thing that is exactly the same amongst all of them. Every single one. You know what it is, don't you? It should be obvious now after decades of senseless attacks on innocent people. The thing that unites them all is only too clear.

It is the ONLY thing that they all have in common.

You've figured it out, haven't you?

That's right.

Every single one of those terrorist attacks was carried out by a human being.

Comment: Re:Moore's Law has nothing to do with this (Score 1) 272

by radtea (#43466807) Attached to: Moore's Law and the Origin of Life

Not only is the Moore's Law reference in TFA, it is also in TFPreprint are arXiv.org.

Apparently, some /. readers can't understand that the editors of /. are not the originators of every stupid idea we see here, like the idea that the /. editors are the originators of every stupid idea we see here.

Comment: Re:Cataclysmic events may be required (Score 1) 272

by radtea (#43466761) Attached to: Moore's Law and the Origin of Life

This may be one factor (of possibly several) that explains the Fermi paradox.

Another factor is that specifically human intelligence of the kind that proves theorems and builds spaceships is almost certainly an accident of sexual selection. There is absolutely no utility in being able to prove theorems or build spaceships in the stone age, so there couldn't have been any selective pressure in favour of that type of specifically human intelligence.

This is likely why specifically human intelligence is so rare, despite all the apparent building-blocks being common. Rudimentary tool use isn't especially rare, nor are basic communication skills that appear to be the basis for language. But since the selection for these things is an accident of sexual selection and not a predictable product of natural selection there are a lot of co-incidences that have to happen to make beings like us.

It is quite likely from what we know of abiogensis and evolution that life will prove to be quite common in the universe, and intelligence extremely rare.

Comment: Re:Looks like creationism... (Score 5, Interesting) 272

by radtea (#43466383) Attached to: Moore's Law and the Origin of Life

On the other hand evolutionists rarely notice that a process of natural selection doesn't create something "new", it only causes a (mathematically preexisting) potential arrangement of atoms, one of an infinite set, to actually appear

The problem with "philosophical literacy" is that it makes you say things like "mathematically pre-existing" as if it meant something other than "non-existent".

You seem to want to reify the mathematical language we use to describe reality, as if the tool we use to describe the world and which we have invented and adapted to describe the world ever more deeply, somehow "predates" the world that language was invented to describe.

I see no reason to privilege math over English in this regard. Both are just languages we use to describe, understand and communicate our understanding. Neither has any ontology apart from us, the beings who invented them, and to impute otherwise is both unwarranted and uninteresting. There is no explanatory need to do so, nor any operational test we can apply to test the validity of the hypothesis (although it would be damned interesting if you could come up with one.)

There are certainly many cases where our mathematical description has to be "fixed up" by hand to actually describe the world, the most obvious one being the excess of solutions to almost all the basic differential equations we use in physics, particularly the things like the backward-in-time solutions to any given wave equation. (That the time-reversed solutions of the Dirac equation can be given meaning does not change this, it merely emphasizes what a poor tool mathematics is for describing the universe in all the other cases where the advanced wave has no apparent physical meaning.)

Given what a lousy tool math is to describe the world, it would be very, very weird if the world were somehow "following" math. The hypothesis that we invented math to describe the world in much the same way we invented to stone ax for changing the world looks a lot more plausible.

Comment: Re:High School Students (Score 2) 41

by radtea (#43465933) Attached to: Slashdot Goes to the FIRST Robotics Competition (Video)

I was an FRC mentor for several years and it was both incredibly demanding and incredibly rewarding. You'll see high-school students go from clueless newbies in their first year with the team to competent, confident and capable young men and women by the time they're done.

A lot of it is the unplanned activities. One of my favouite memories is teaching a couple of students some vacuum technique for ensuring the pneumatic system was sealed properly. The students are motivated, interested and eager to learn, and you get to see their competencies undergo these sudden upward steps where they are frustrated and confused one minute and doing the job properly five or ten minutes later.

It's really worthwhile for everyone, and if anyone had told me how much fun it would be to work with teenagers I would have laughed my head off. But it turns out it is.

Comment: Re:Good thing it's dead (Score 1) 138

by radtea (#43465617) Attached to: The Forgotten Macro Language of HTML: XBL 2.0

Although you're more correct than most of the people posting here, much of what you say is wrong.

SGML is a very flexible language created (pre-web) to be a universal document format - or perhaps a meta-format.

Meta-format is close. SGML is a language for defining markup languages. That's what the "G" is about (it stands for "Generalized" but should have been an "A" for "Abstract"). You're correct that with suitable clever ticks you can make almost anything a valid document against some SGML language. The "" to "/>", which is very clever but incompatible with HTML.)

SGML plays the same role in markup languages that EBNF syntax plays in programming languages.

You're right about the power and flexibility, though: I once created a concrete syntax and DTD that would let me use SP to process RTF documents.

XML and HTML were both subsets of SGML.

"Subset" isn't the right word to be using here (why yes, I did take a double-dose of Pedantic Pills today!) XML and HTML are both concrete markup languages whose definitions are valid SGML DTDs and that use the SGML concrete reference syntax (mod the redefinition of NET used by XML).

XML somehow became popular for serializing data, but it's just not a very good tool for that. JSON is far simpler and less verbose for object serialization, but I couldn't see using it for sparse document markup.

XML is just fine for serialization, and no more verbose than JSON when used properly (contrived examples to the contrary). What it lacks is a lightweight parser: the compelling advantage of JSON is you don't have to pull a huge parser over the wire to handle a few hundred bytes of information. JSON would be a bad tool for document markup, though.

Comment: Re:Escalator to hell (Score 1) 104

by radtea (#43452979) Attached to: Passthoughts, Not Passwords: Authentication Via Brainwaves

It is a bit like voice recognition: the voice may be personal and unique (or personal and unique enough), but recording a voice and playing it back is dead easy.

And yet people remain fascinated with these unchangable, non-repudiatable, easily spoofed means of biometric identification. I really don't get it.

Comment: Re:GASP we break the law all the time and no one d (Score 4, Insightful) 400

by radtea (#43407167) Attached to: Speeding Ticket Robots — Laws As Algorithms

I make a distinction about that being a good safety regulation imposed by law, versus speed limits where one driver can be safer over the speed limit than a less capable driver under the speed limit.

There are no less capable drivers. I mean seriously, just ask any driver. They are all more capable than average, and therefore it's safe for them to flout the rules of the road, speed laws, you-name-it, because they feel safe, and really, when have feelings ever let anyone down as a means of perfectly objective self-assessment?

"Facts are stupid things." -- President Ronald Reagan (a blooper from his speeach at the '88 GOP convention)

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