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User: IWannaBeAnAC

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  1. Re:Hope it's going in the new Mac Pro on Next-Gen Intel Chip Brings Big Gains For Floating-Point Apps · · Score: 1

    Most of the people in the physics department here use windows desktops, but pretty much all of the numerics people use linux desktops. Naturally, all of the computing clusters are linux. It seems that virtually all laptops are macs though, which is curious. Possibly people would like to use macs on the desktop but there is some barrier (eg, purchasing or IT administration policies) ? I'll have to find out!

  2. Re:Total bullshit assumption on NASA IG Paints Bleak Picture For Agency Projects · · Score: 1

    Contracts, basically. You've probably never had a job before, but when/if you do, you'll find out that people always have some kind of contract. Once you have a permanent position or a fixed term position, the employer can't simply say "you don't have a job anymore, I'm not paying you past Monday". Any termination clause in the contract is going to specify some period of salary that still needs to be paid. For programs that are currently part-way though, even shutting them down requires money. Eg, putting equipment into storage or transfering it elsewhere, paying off orders that have already been put in. So sure yes there are always ways to cut money, but a very large fraction of costs simply cannot be cut, at least not overnight. NASA has had a tight budget for many years now - they do an awful lot with it, but they've been stretching it very thin and wide for a long time.

  3. What? on GNU Hurd To Develop SATA, USB, Audio Support · · Score: 4, Funny

    Is this a joke? I had to look at the date again, I thought it was 2003 again for a bit.

  4. Re:Aussies, now you know why... on Australian Government Censors Draft Snooping Laws · · Score: 2

    The USA in 1776 wasn't a democracy, it was a colony of England. (England may have been a proto-democracy, but the colonies certainly were not.) Nazi Germany wasn't a democracy. Adolf Hitler never won a popular election. He wasn't elected as chancelor, but appointed by Hindenberg in a constitutional crisis.

  5. Re:Aussies, now you know why... on Australian Government Censors Draft Snooping Laws · · Score: 1

    Ok, but none of these are western democracies. We're still a tremendously long way away from seeing why guns would help Australians in their particular situation.

  6. Re:Aussies, now you know why... on Australian Government Censors Draft Snooping Laws · · Score: 1

    Can you point to any protest in recent history of any western democracy where having guns made any such difference? Or even any example at all (eg, in a non-democracy, or not recent) ?

  7. Re:Aussies, now you know why... on Australian Government Censors Draft Snooping Laws · · Score: 3, Insightful

    Err, what are you saying would be different about the situation supposing that every person in Australia did have a gun?

  8. Re:Will it be practical? on "Twisted" OAM Beams Carry 2.5 Terabits Per Second · · Score: 1, Informative

    Sorry, that whole post is nonsense! OAM is a clearly defined mechanism, and the different OAM states are orthogonal. See for example http://physics.aps.org/story/v17/st15 for an explanation.

  9. Re:Wasn't this already known? on Volunteers Use Annular Eclipse To Measure Sun More Accurately · · Score: 1

    Indeed. And the value elsewhere http://solarsystem.nasa.gov/planets/profile.cfm?Object=Sun&Display=Facts&System=Metric of 6.9551 x 10^5 km implies also an error of the order of 10km. But it differs by 500km (or 50 standard deviations)! This is an incredibly large difference between the measurements, given the error bars. Perhaps they are measuring different things, the radius at the equator won't be the same as the radius at the poles.

  10. Done to death already on New Study Suggests Wind Farms Can Cause Climate Change · · Score: 3, Interesting

    This has been done to death already elsewhere. The bottom line is that increasing the surface temperature (at the expense of cooling the air) increases the thermal radiation into space and therefore has the overall bottom line effect of (very slightly) cooling the earth.

  11. Re:So how do they know if they actually wrote it on New Technique Promises Much Faster Hard Drive Write Speeds · · Score: 1

    Harddrives haven't used coils for a long time. Nowdays they use the GMR effect http://en.wikipedia.org/wiki/Giant_magnetoresistance and in principle the CMR effect could give another few orders of magnitude more sensitivity. That only solves the size problem, it doesn't do much for the speed problem.

  12. Re:Somewhere in the engineering process on US Sentinel Drone Fooled Into Landing With GPS Spoofing · · Score: 1

    Right, but you don't do it that way. You trick it into thinking its got a strong cross-wind.

  13. Re:Quite possibly, the most useful study EVER on Internet Explorer Users Have Low Risk Intelligence · · Score: 1

    I'm not sure that that is inevitable though. I think it would be possible for a politician to be successful and still avoid perpetually lying. Most political lies come about because politicians promise something and then it turns out for various reasons that they can't deliver on it, or they end up bargaining that promise away in exchange for achieving something else that they consider has a higher priority. But think it would be interesting if politicians started using different language; "I'll do my best to get X done", or "I don't know what we'll achieve at the next tax summit but some options are .....". I can't think of a recent politician anywhere in the world that has tried it, which maybe means that people who say things like this never get past first base, but on the other hand, the generally cynical public might just appreciate the honesty.

  14. Re:Once Again... on In the EU, Water Doesn't (Officially) Prevent Dehydration · · Score: 2

    My understanding (which may be wring mind you) is that iron supplements indeed don't do anything to cure or prevent iron deficiency. To be effective, the iron has to be absorbed by the body. That is rather tricky with iron, and simply taking something with iron in it isn't enough.

    There is also another point here, which is that using iron supplements to cure or prevent iron deficiency would be very easy to clinically test. The reason the FDA hasn't approved of it as a drug is almost certainly because the studies have been done, and the supplement was not shown to be effective.

  15. Re:So on Climate Panel Says To Prepare For Weird Weather · · Score: 1

    Isn't the IPCC report consider and has been considered a 'respectable' presentation of scientific fact that has been peer reviewed, to make policy decisions on? I thought so. Indeed it has. And it has a track record of being wrong, not once, not twice, but several dozen times.

    Oh and of course there's no shortage of respectable journals which have used the IPCC as a source for these inaccuracies, and reprinted them as fact.

    Whoa, slow down the trolling.... The question was: Can you point to even a single article published in a respectable scientific journal that claimed that "New York city would be buried under ice as part of the new ice age to be here by the year 2000. That was in the 70's...".

    The IPCC didn't exist in the 1970's.

    On the topic of the IPCC, some inaccurate statements are almost inevitable in a report of many thousands of pages. The fact that it took years to even notice the inaccuracies is an indication of how important they are to the main conclusions.

  16. Re:So on Climate Panel Says To Prepare For Weird Weather · · Score: 3, Insightful

    Who has a track record for being wrong? Can you point to even a single article published in a respectable scientific journal that claimed that?

  17. Re:Frosty Piss on German Government's Malware Analyzed · · Score: 5, Interesting

    nope, as german law doesnt exclude illegaly obtained evidence from use in court.

    Right, but that is appropriate. The USA is the only country I know of that does exclude evidence like that. In most jurisdictions, the aim (idealized, not always realized) of a court case is to uncover the truth of what happened. If the law was broken in the process of obtaining evidence, by all means prosecute the people who broke the law, but to exclude that evidence is a weird thing to do. At least, 90% of the planet thinks so...

    The situation in the US is based on a rather bizarre interpretation of the constitution set by the supreme court, actually not so long ago, starting from around 1920. The Fourth Amendment of the constitution is the one about "no unreasonable searches and seizures", and requiring "probable cause". But it doesn't specify what the penalty should be if those rights are violated. In much of the rest of the world, the equivalent violation (eg, of police or some other person obtaining evidence illegally) opens the offender for prosecution but whatever evidence is obtained can still be used. That was the case in the USA before the early 20th century. But several court cases in the 20's and 30's established the "fruit of the poisonous tree" doctrine, in which evidence which was obtained illegally is not admissible in court. This has resulted in many farcical court cases where the facts of the case are well established, but can't be presented in court because the evidence was obtained illegally (in some cases, due to some technical omission). It also results in lots of arguments where opposing lawyers have a big bun fight, and make lots of money, arguing at length over whether a particular fact is allowed to be presented to the court or not.

    It has also resulted in the attitude that cops who break the law are already "punished" by being unable to present the evidence in court (and often therefore unable to convict a criminal), and that this is sufficient punishment for the cop. Whereas in other jurisdictions the cop would lose their job, or end up in jail themselves, in the US they typically don't. This is an encouragement towards corrupt behavior.

  18. Re:Bwahahahah on Hot Multi-OS Switching — Why Isn't It Everywhere? · · Score: 1

    Point out ONE emulator that doesn't emulate the CPU. Go ahead. I'm waiting.

    Dosbox.
    Wine. (plus various offshoots)
    Dosemu.

  19. Re:Deitel & Deitel on What Is the Most Influential Programming Book? · · Score: 1

    Yeah, that was a very good book. Back in the days when it was possible to more-or-less understand exactly what was going on inside the CPU...

  20. Re:False dichotomy on C++ 2011 and the Return of Native Code · · Score: 1

    Even an assembler will link in those libraries that you're talking about.

    Assembler has a main() function? That must be new, didn't have one back when I used to do a bit of assembly. In the old days, the loader simply used to jump to a specific address in the executable and then you were on your own.

    Even an assembler will link in those libraries that you're talking about. Objective C clearly has a runtime that is deeply involved with the application, and imposes a runtime model that C doesn't have, and that C++ doesn't have unless you use RTTI.

    Your point is? The runtime can be a substantial piece of code (eg a VM) or it can be simple (eg in C), or it can be entirely non-existent (nothing more than a loader, as in old-style machine code). So what?

    But you still have to have a runtime to handle dynamic method dispatch, especially if you use reflection, making the Java and ObjC runtime requirements about equivalent. (They both have, in their present incarnations, garbage collection, for example.)

    Again, so what? You could use a garbage collector with C++, for example (eg the popular Boehm collector). And you can implement your own dynamic method dispatch in C++, if you wanted to go to the trouble. Dynamic dispatch (with a bounded set of types) is way different to a full-blown VM. But they are still part of the runtime environment. I don't understand the point of your post, you seem to be saying basically the same thing I said, but you've written it in a way that makes it look like you disagree. Exactly what do you disagree with?

  21. Re:False dichotomy on C++ 2011 and the Return of Native Code · · Score: 1

    all languages have a runtime environment, but it isn't necessarily a virtual machine!

    The runtime environment for C++ is often fairly simple, it handles the operating system program entry point and passing arguments to the main() function, as well as initializing parts of the standard library.

    The runtime environment for Java is a bit more complicated, it usually involves a bytecode interpreter.

    But that is mostly a choice of the implementation. Native compilers for Java exist, and so do C++ interpreters.

  22. Re:Too good credit rating anyway on S&P's $2 Trillion Math Mistake · · Score: 1

    That is true, but my point is (which I concede wasn't stated properly) that the USA certainly has the capacity to pay down the debt, and the only impediment to doing this is political. So it is not comparable at all to a typical debt holder. The comparison with someone who could potentially become insolvent is meaningless.

    Its rather hypothetical, but possibly one could even argue that the constitution actually allows the USA to sell off California to China in order to repay debts. But no way could china seize California!

  23. Re:Too good credit rating anyway on S&P's $2 Trillion Math Mistake · · Score: 1

    Is there a total of 40 man-years of work going into constructing a house? I think that's an interesting question, and I suspect its probably less than that, I'm not really sure, and its certainly a lot more than it might seem at first glance. Consider all of the work that goes into preparing the building materials and so on. I reckon the cost of the house itself probably does reflect, quite accurately, the amount of total work that goes into it. The cost of land however, is a different question. That is a question of how much you value a particular location, and can get crazy high, but on the other hand its probably worth it, for the people who actually want to live there.

  24. Re:Too good credit rating anyway on S&P's $2 Trillion Math Mistake · · Score: 1, Insightful

    The total debt US has is way too high anyway, if a person had same sort of debt load they would be insolvent.

    That is a pretty astounding thing to say. Most people who have a mortgage have a far higher debt load than the US government, and sub-prime victims excepted, the vast majority of home-owners do not go insolvent in the process.

  25. Re:Not so bad to have different systems. on Why Does the US Cling To Imperial Measurements? · · Score: 1

    I can do a lot of the conversions between the systems and within them in my head in just a few seconds. I'm sure many of you can too. What I'm trying to say is that if we do all standardize on the same systems, we're losing the ability to cope with different systems.

    I suspect it is very uncommon to be able to do conversions between metric and imperial in your head. Indeed, theinability to convert to metric is the principal excuse for not having converted everything already. What I am totally failing to see is any reason why the 'ability to cope with different systems' is useful for anything. Even in the bizarre example posted earlier of communicating with an alien race, it is unlikely that anyone other than a handful of specialists would ever need to do any unit conversions. Just like today; only a handful of people (eg, scientists, engineers) regularly need to do any metric/imperial conversions.