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  1. Feynman's books rock, so does Halliday, Resnick on Science and Math For Adults? · · Score: 1

    All of Feynman's books rock.

    My favorite textbook for all time is a physics book, Halliday, Resnick et al's Fundamental's of Physics. (Some of the problems are mediocre, but the text is wonderful) If I hadn't had it in my university physics classes I would've gotten an F instead of an A.

    Also, as some other posters have said, Calculus is extremely important. It is a different way of thinking, better in many cases.

    Ben

  2. Re:[If you didn't read the article] Diebold seems. on Slashback: Blender, Paly, Dragon · · Score: 1

    Potentially whether the votes are transferred using the modem doesn't matter if it allows someone to compromise the machine itself.

    I'm not saying "a network is bad" I'm saying a modem with a live wire (or apparently, a live connection) certainly defeats the defense that Diebold is using. Using the modem at any time between a reformat and the removal of the certified card means they need to be thinking about it being hacked from that angle.

  3. Re:Troubling. on Linksys and the GPL, Again · · Score: 1

    Although I can understand why you took issue with it, his statement wasn't wrong, it just wasn't lawyerly enough.

    Under the GPL, in a common class of changes (those that are distributed) he'd likely eventually get to use the changes. Reading his other posts, I think he understands that there are limitations to this.

    His point was about the GPL being an obligation, but I guess you can't make a point on Slashdot without mucking around in the details. : )

  4. [If you didn't read the article] Diebold seems... on Slashback: Blender, Paly, Dragon · · Score: 2, Insightful

    [If you didn't read the article] Diebold seems reasonable

    Their rebuttal said that. But they're using a wireless network to the stations, and sending results over the web.

    Whether or not their systems are actually vulnerable, they're clearly lying.

  5. Re:Psychologists versus ethologists on Psychotic Lab Mice · · Score: 1

    I have a real difficulty with your use of the phrase "American psychological tradition" there. I'd suggest that Skinner would say people could easily be reinforced and trained if you could find reasonable reinforcers, like their animal counterparts. Of course, this is an affront to everyone's concept of free will.

    On the other hand, what I would consider to be the "American psychological tradition" at the moment seems to say that people can't be controlled and therefore that you shouldn't try. So things like phonics are deemed useless by extension.

    I certainly think that animal behavior observed in situ using a strong numeric method is better than some obscure case. However, using a bad method makes both of them useless at best and dangerous at worst, and the difficulty of repeating it lends itself especially well to being tainted by the researcher's prejudice.

    At least in Skinner's experiments you knew reliably that weird mice like X in Y situation did Z.

    Check carefully to make sure the best possible repeatable result isn't "situation strongly tends to evoke the idea of and papers about "K" in researchers from "J" society" I think this is tricky but not impossible to avoid, especially in a natural setting.

    Sometimes there is value in such a study, but not science. It might at least give you an idea where to focus some science, for instance. Or it might win you a grant to do that science. : )

  6. I have a Apple Powerbook and an IBM Thinkpad on Apple-Quality Intel Laptops? · · Score: 1

    The Powerbook is a G3 Pismo, the Thinkpad a 233Mhz 600E. So neither is fast, but both are nice. The Apple's slightly newer.

    I love OSX. I love Apple. There are features of the Thinkpad that make me like it better. This amazed me. For instance, the texture of the body plastic near the keyboard is PERFECT. Much better than the G3. Of course, it has a couple extra mouse buttons. It's incredibly easy to swap the HDs, even when they're still warm, so I can have an easy multiple boot setup. (I prefer this to a partitioning scheme because I HAVE several HDs, and I don't have a single much-larger one.) IBMs latch for the PCMCIA slot is superior.

    (These are the machines I use every day)

    I've seen a lot of laptops, and I definitely think IBM is the PC-way to go.

  7. This is Slashdot, I can tell you anything. on Sports Technology? · · Score: 1

    This is Slashdot, I can tell you anything: true, false, some of each. Funny, not funny, some of each. On topic, off topic, some of each. Poorly written... (there's an opposite, I just can't locate a good example ; )

  8. No, you'd expect it to be a few hundred more on New G5 Power Macs "Fastest Desktop In The World" · · Score: 1

    First, Apple crams all sorts of stuff in there, some of which you don't need, but it's standard on all the macs of a class. This matters when you need one of those things, and it's absolutely already there, and very few people have marginally compatible upgrade cards. Do I need gigabit? No. Firewire 800? No. Is it cool? Yes.

    Second, Apple's stuff is "highly engineered" meaning that they made sure it all behaved fancy and looked fancy, and absolutely charged you for that improved experience. Yes, this is a higher margin for them, but the added value is in the overall experience.

    Third, I consider OSX at least the equal of XP, and Apple's more expensive. So consider a several hundred dollar OS premium that you might not be adding in otherwise.

    In the end, these are surprisingly cheap. (Although I still tend to add in some third-party components...)

  9. It is a theory - and I don't have proof (SCO?) on What's Behind The Odd Data? · · Score: 5, Informative

    But it isn't _my_ theory, it's a theory present in both the cited articles.

    The following is my theory, and it is also without proof, but I'll provide some logic at least.

    My supposition is that it tries to talk to lots of IPs, spoofed from lots of IPs. And that since it's not self-propagating, it's either 1) wasting time or 2) mapping. 3) doing something we haven't managed to detect.

    People don't usually like to give answer 3, answer 1 seems like a silly reason for the author to put in so much work, so we're left with answer 2.

    Now, does this mean this mapping is nefarious? Not itself, except that it's being done by someone ok with hacking and apparently skillful. To blatantly rip off another poster, maybe it's SCO trying to find all the linux boxen : )

  10. For those too lazy to read the article : ) on What's Behind The Odd Data? · · Score: 5, Informative

    Basically, there's a new trojan, sortof.

    It apparently requires being installed by hand by the originator (or someone else, I suppose) But then it makes the machine into an effective zombie for the originator.

    It does a good job of hiding the infection - sending out 1000 spoofed addresses for each real one.

    It targets linux only, at least so far.

    It is apparently trying to map internet connected networks.

  11. No, Communes and Communities are very different on Last-Mile Solution For A Rural Land Co-op? · · Score: 2, Informative

    Communes and Communities are very different, although I suppose it might be hard to tell just visiting. I suspect most communes are examples of Intentional Communities, but not the reverse.

    In short, a community is a village; an Intentional Community is a village founded and tended on the principle that everyone really, really likes the color blue; and a commune is where everyone who's part of it dedicates all of their possessions and income to the community's goals of promoting the color blue, kindof like they're all married to each other.

    Basically, any group of people who live together and interact are a community. A group of people who live together on purpose are an Intentional Community (or generally capitalized Community) who will generally share many ideals.

    The governance and ownership of the IC could be open to everyone living there or more restricted, sometimes to the founders or long-timers. Or pick any governance system you like. Typically there is some kind of arrangement where you have to work and/or pay to live there.

    In a true commune all of your possesions and income are shared within the community. Being in an IC _often_ does not involve giving up the ownership of personal possesions or whatever income you might have. And some people do live in Communities and have "normal" jobs.

    Of course, a bunch of people who don't believe in possessions living in a Community would be pretty hard to tell from a commune, even if the part about the possessions wasn't a prerequisite for living there.

    (My sister lived for a while at the Dancing Rabbit EcoVillage in Missouri, which has some people who hold communist ideals but also some who are downright capitalist)

  12. Legal vs technical vs payperemail on Earthlink Wins Another Spam Award: $16 million · · Score: 4, Insightful

    I used to believe that legal remedies couldn't stop things like spam, but I think I was wrong.

    The very fact that spam is only a problem when it's on a large scale (don't think about recieving on a large scale, think that the list has to be large...) means, I think, that legal solutions can prevail.

    arete

  13. good air filters, HEPA, allergies, & some myth on An Affordable Air Purifier For Dusty Computer Labs? · · Score: 4, Informative
    There's only one problem that I see with your inexpensive setup - not enough fan. Although, perhaps it's enough for your situation, putting in a larger fan could make much better use of that large filter media. You didn't specify, but the fans ought to suck from the filter, so they themselves are protected, too.

    A short description on filters: There is, roughly, how many particles they catch of different sizes and how much air they attempt to filter. (Back to the ionic breeze later) In general, the latter is actually the dominant force in really helping you.

    The HEPA standard is irrelevant (and no longer current) in any case where you might be standing in the unfiltered air. It's designed to keep radioisotopes from escaping laboratories. That doesn't mean HEPA filters are bad - but the HEPA standard is tremendous overkill in terms of what's important to you. A small HEPA filter, for instance, might have filtered 99.97% of very small particles out of 10% of the room air in the time another filter would have filtered out 80% of 90% of the air. (Math: about 10% vs. 72%)

    That said, traditional furnace filters still suck :) as they barely do any filtering at all. In fact, I have a box of 20x25 for sale at http://www.xig.net/sale/ near Chicago. Filtrete is a wonderful solution that doesn't cost very much - and while the parent post mentioned this, I'm not sure they put enough emphasis on it. I ended up replacing my furnace fairly soon after moving here for other reasons, and I have a Honeywell F50 electronic filter on my furnace. It's not even a very efficient filter compared to HEPA, but it uses the gigantic fan that's on my furnance, so in the end, it's better.

    There is a basic difference between electronic and physical media filters that _in general_ means electronic filters work better on smaller particles and media works better on big ones. The ideal solution typically is to put a large media filter in front of the electronic air filter - which is exactly what my F50 does. (There's a washable metal mesh filter) I believe this is the nature of the Ionic Breeze controversy - that it is ineffective on industrial debris in the air, but effective at pulling out allergen-sized particles. (Yes, allergens come in many sizes. But they're all pretty small. And, you're probably not allergic to dust mites, but to dust mite FECES - just in case you weren't sure it was tiny) I certainly think a fan might help it, but in my bedroom, for instance, it probably wouldn't matter because there's a ceiling fan and quite a bit of airflow (partially from ~ 12 case fans so it varies depending on exactly where...) My supposition is that it was designed with some sort of "average" room air circulation in mind.

    If your goal involves making it easier for someone to breathe, make sure you catch those pretty small particles - Filtrete at least, electronic ideally. If you have allergies, there are lots of other things that help tremendously - like (now NOT just plastic!) covers on your mattress, hardwood floors, washing bedding in hot water... (Perhaps I'll turn this page into a webpage. Heh. I'm happy to answer questions, though, in the meantime. If I do, it'll appear at http://www.xig.net/allergy

    Disclaimers and notes: I have a degree in Mechanical Engineering, I don't have an Ionic Breeze (they cost HOW much?), nor have I read the relevant Consumer Reports articles. I do think CR usually does great work, and I purchased my washer, dryer, and dishwasher from their reviews, but anyone can make a mistake. I do have pervasive airborne allergies, and have made a great many modifications to my surroundings to improve them.

  14. Fines to the offender on Credit Suisse First Boston Fined $100 Million · · Score: 2

    If the principle PEOPLE all got PERSONALLY fined, I still think this would happen a lot less.

    Jail time vs fines and corporate vs personal punishments for wrongdoing are not really the same issue.

  15. Powerbook vs ibook & PPC vs x86 processors on How Unix-like is MacOS X? · · Score: 2

    My processor rule of thumb goes like this:

    AMD's "1800+" type labels, while cheesy, are essentially accurate in comparing in to the latest P4 generation. I normally give G4 hardware about a 2x advantage clock-for-clock to a P4 - so an 800 Mhz G4 ~ AMD 1600+ ~ P4 1.6 Ghz. I don't have a handle on Transmeta. PIIIs and G3s seem to not be significantly clock-for-clock worse than the newer generations, but the G4 and P4 achieved much higher clocks.

    Is this perfectly accurate? No. Could you spend hours listing things that affect speed? Yes. Are various bus and interface speeds probably more important than the CPU? Yes, especially if one of them is slow, because the bottleneck has the most prominent effect.

    The upshot is that the fastest x86 chips are faster these days, and cheaper. OTOH, raw CPU is probably not your bottleneck.

    Laptop wise, you should be aware the PPC chips are fairly power friendly, and x86 chips are hogs. iBooks have ludicrious battery life, and that's good. Also, "SpeedStep" is tricky: SpeedStep does NOT reduce the power consumption of the CPU by idling it when it's not being maxed - it reduces the power consumption AND the clock rate WHENEVER the laptop is unplugged. There might be a way to supress this, but it would make your battery work even less time than they start with.

    I'd certainly get a Powerbook G4 before I'd get an iBook, if I could afford it. The flexibility is awesome. But I'd be able to afford an iBook sooner...

  16. The magic word for you on LindowsOS.com Email Lists Collected For MS Suit · · Score: 2

    is "Suite" or STE

    I put "Suite #####" or "Suite SLASH" for instance on a lot of my mail, and they DO put it through, and keep it there, because they believe it's important.

    I'll give you that for free :)

  17. Campaign finance reform is another way on DeCSS Injunction Reversed In CA Case · · Score: 2

    We have, of course, a chicken and egg problem, but the way to attack the RIAA problem is that they shouldn't be so ABLE to buy congressmen - and the way to stop that is real finance reform.

    The way to do THAT is to vote out the people who won't vote for it, and not be distracted by shorter term issues.

  18. That's not a true story on Undercover Hacking, For Money · · Score: 1

    It's the introduction to a true story. :)

  19. Physics, Psychology, Calculus on Texts for Autodidacts? · · Score: 2

    I do recommend Feyman's books, (which aren't really textbooks) as mentioned by others, as a good introduction to advanced physics. Before that, I recommend "Fundamentals of Physics" by Halliday, Resnick, et al, which is imo the best textbook I've ever used. I don't vouch for the problem sets, however. The book TAUGHT me everything, but the prof was the one TESTING me.

    If you don't know calculus, learn calculus. Very basic trig is useful, advanced trig is arcane. Basic calculus makes life much clearer (The first two semesters, involving derivation and integration) After that it becomes arcane too. I can't recommend a book, as I haven't been able to find the one I used in HS.

    I strongly recommend "Don't Shoot the Dog" by Karen Pryor. This is a behaviorist book, but not a textbook. But it teaches you a lot about how life works. (Note: conventional psychologists tend to consider behaviorists insane, and vise versa. Engineers side with the behaviorists, and buildings rarely fall down. YMMV) Ishmael is another highly recommended behaviorist book, but I haven't gotten to it yet.

    The other books I strongly recommend for the experience you gain are Go Rin No Sho by Miyomoto Mushashi (sp?); Robert Pirsig's books, particularly Zen and the Art of Motorcycle Maintenance; old hardcore science fiction writers, particularly Asimov and Heinlein.

    I have a bunch of engineering texts I liked at various levels...

    I'll see if I can think of anything else to add later.

  20. Technical Answers about transfers, firewire, MP3 on Apple releases iPod · · Score: 3, Informative

    Firewire, in fact, is a total of 50 MB of transfer. Furthermore, it's QOS'd and has significant overhead, so you're likely to peak at 10 MB/s (although you can perform 4 transfers each of which is GUARANTEED 10 MB/s, so you'll have 4 quality video transmissions, for instance) But that is certainly less than ATA 100. Except that no single current hard disk or CD drive can match ATA 100. (and, incidently Apple's hardware is essentially the same now)

    What you forgot is MP3 compression. IF you already have your whole CD transfered into your computer as MP3s, then you can transfer it in those seconds. This works well because the mac stuff is very seamless... So IF you've got your whole music collection already on your PowerMac, then it's 10s/CD.

    This doesn't work for data, of course.

  21. Re:Apple vs. Apple - reply to another poster on Apple releases iPod · · Score: 2

    I'm replying to someone who might've been already modded into oblivion, but I'll try anyway.

    Normally, it's difficult to trademark a word like Apple, but you can go ahead and try. It's NOT incredibly hard to defend a name like "Apple" in a relatively narrow field, like music. (It'd be much harder if, say, you were "Apple Sauces, Inc.) Furthermore, this already happened, and Apple Computer signed a settlement agreeing not to delve into music.

    When they did, they said "so sue me"; see my post above.

  22. Sosumi on Apple releases iPod · · Score: 5, Interesting

    Apple (AAPL) essentially already violated that. The engineers, at least, seem to think they violated it when they added sound effects, speakers, and microphones.

    Therefore, one of the original sound fx was called Sosumi ("so - sue - me")

    Your daily dose of apple trivia.

  23. only "sometimes" exactly on Carbon Magnets At Room Temperature · · Score: 1

    This isn't exactly true, because boiling-point measurements also depend on the pressure. It's exactly 0 and 100 at a particular pressure, but it's non-trivial to establish that you have that pressure without knowing the temperature already - so you have a circle.

    You can determine the triple-point of water, which is the pressure, temperature combination where it is a solid liquid AND gas simultaneously. I believe this is something like 0.16 C, but I'm not going to look it up right now. And it's at a fairly low pressure.

  24. I don't remember the IBM problem on Data Recovery for the Rest of Us? · · Score: 1

    But, you've basically got three kinds of problems:
    systemic hardware problems (doesn't read, reads only half the bits)

    Localized hardware problems (killed or kills some sectors, possibly an increasing number) Possibly causes filesystem problems.

    software (filesystem) problems

    Now, 1) you really can't recover from, unless it's intermittent 3) doesn't happen by disk failure... if it's 4, you need a utility that grabs what it can, runs, and can get past filesystem errors.

    But if your drive is really splattered, it won't work. Try dd /dev/hd2a see if you can get anything. If you can't, you're screwed unless you can perform a physical repair.

    (I spent hours running repair software on a floppy with a big project, to no avail, before a friend ran his direct sector read on it - with no success. He then removed it and pointed out that the metal had separated from the media, and the media wasn't spinning. So, using a toothpick, I superglued them back together, and recovered 97% of my data (but no FATS) )

  25. Anyone know anywhere you can still get one? on Hucksters, Suckers, and the Cue:Cat · · Score: 2

    And, I do mean one. Anyone take pity on me?

    I wasn't really paying attention to /. at the time, don't live in TX, and don't have a subscription to anywhere that gave them away - so I heard about them late.