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User: vrt3

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  1. Re:$500 - not a bad price on DARPA Develops Dolphin-like Tail For Divers · · Score: 1

    On the contrary, I think it's not easy to accelerate that slowly: 2 knots an hour is only 0.000285802 m/s^2.

    If you start from zero speed and accelerate with uniform acceleration of 2 knots an hour, it takes you just over 24 minutes to cover 300 m. The speed at the end will be 0.414 m/s = 1.49 km/h = 0.80 knots. Nothing spectacular.

  2. Re:Yes and no on Forget Math to Become a Great Computer Scientist? · · Score: 1
    I don't know what language you are thinking about, but in C and C++ the evaluation of the arguments is exactly the same in the two forms.

    If you don't believe me, run this small example:

    #include <stdio.h>
     
    int a(int i) { printf("a"); return i; }
    int b(int i) { printf("b"); return i; }
    int c(int i) { printf("c"); return i; }
     
    int main(void)
    {
        int i, j, k;
        for (i = 0; i < 2; ++i)
            for (j = 0; j < 2; ++j)
                for (k = 0; k < 2; ++k)
                {
                    printf("%d%d%d\t", i, j, k);
                    !(a(i) && b(j) && c(k));
                    printf("\t");
                    !a(i) || !b(j) || !c(k);
                    printf("\n");
                }
        return 0;
    }
    Output:

    000 a a
    001 a a
    010 a a
    011 a a
    100 ab ab
    101 ab ab
    110 abc abc
    111 abc abc
    As you see, the same short-circuit evaluation in both cases.
  3. Re:A question for large print graphics designers.. on The History of Photoshop · · Score: 5, Insightful
    Some quotes from that page:

    "A plugin providing rudimentary CMYK support for The GIMP"

    "this is experimental software"

    "This plug-in goes some small way towards rectifying the situation"

    I like Gimp, but that plugin doesn't sound like it provides professional CMYK support. And it looks like the project is dead:

    The plugin is unfinished, but usable for its primary purpose, and since I'm unlikely to have time to develop it further in the near future, I'm releasing it as is.
  4. Re:Patronising BS on Why Work Is Looking More Like a Video Game · · Score: 1

    ... why are we still using paper checks?

    Completely off-topic, but that's something I often wonder about. Why *are* you still using paper checks? Over here in Europe, I see checks only very exceptionally. Personally I have used a check maybe two times in my whole life (I'm 32). I remember my parents using them when I was a kid though.

    Nowadays virtually all payments are done cash, via debit/credit/stored-value card, or wire transfer (depending on the circumstances, amount, type of transaction). Wages and salaries are always payed with a wire transfer. Seems so much easier.
  5. Re:And? on The Clueless Newbie Rides Again · · Score: 1

    And this is the part of *nix that has always scared me. :(

    I don't know what GNOME or KDE means. I don't know if they're acronyms or abbreviations or what. I'm sure 5 minutes on Google can help me, but I don't want to spend 5 minutes searching for everything "new" in *nix, because, well, EVERYTHING is new to me! If I were to spend 5 minutes on each new *nix term I heard, I would end up spending the better part of a weekend just learning. That's not what I want to do with my weekend.

    Your comments, jZnat, look like they're trying to be helpful, but things like this are where people like me get worried and/or scared. I totally understand there will be a learning curve; I expect there to be one. However, I've only just decided to install, and already I'm worried I'm going to do something wrong.

    In that case, my advice to you is: try Ubuntu with all the default settings. There's really no *need* to change anything from the default, since the Ubuntu folks have chosen sensible defaults for everything.

    Just remember that in Linux many system components can be changed, if (and *only if*) you desire to do so. Possibly you find out that you don't like a particular component or setting after you have been using the system for a while. If that happens, that is the moment you can try to find out if there's an alternative that better suits your needs. By that time, you'll have a much better understanding of how the system fits together, and consequently you'll be able to make a much more informed choice.

    But, again, you don't *have* to make all those choices; if the choices make you uncomfortable, just leave everything at its default.

    Good luck!
  6. Hooverphonic's laptop guitar on The Laptop as an Instrument? · · Score: 1

    Alex Callier of the Belgian band Hooverphonic uses a guitar with built-in laptop. It's a Fender Telecaster with a laptop built in, and allows for more flexibility in sound effects and between concerts he can use it to surf the web.

    There are many results on Google, but almost all of them in Dutch apparently. Here's the only English result I found: http://www.newsenginepr.com/documents/intel.xml (see section 'Hooverphonic on tour with one of a kind Intel Guitar'). Ah, Intel has a page about it too, but without reference to Hooverphonic: http://www.intel.com/cd/corporate/pressroom/emea/e ng/248418.htm

  7. Re:top posting on Must-Have Extensions for Thunderbird 2.0 · · Score: 1

    If you ignore the previously sent emails, why not just delete them?

  8. ogg doesn't require floating point on Apple's Move May Make AAC Music Industry Standard · · Score: 2, Insightful
  9. Re:WTF Register quote? on Vista Slow To Copy, Delete Files · · Score: 4, Funny

    I realize "The Register" is the "National Enquirer" of IT, but what the heck does this quote in TFA mean: "it's as if you're copying over a 64k link using only 256mb of RAM"

    Note the small m and b: it's not 256 megabyte, but 256 millibit. That's not a whole lot of memory.
  10. /usr on Define - /etc? · · Score: 1

    I've seen /usr referred to as Unix System Resources, but that doesn't seem very logical either.

  11. Not new: Garmin has done it before on Upside Down Phone Patent · · Score: 1

    My Garmin Geko 201 (http://www.garmin.com/products/geko201/) has the same layout, for the same reasons.

    But I don't like that layout a single bit. It may be great in theory, but in practice my hands always obscure the screen if I use the buttons. Even more so if I mount it on my bike's handlebar.

  12. NoSquint on Firefox 3 In Alpha · · Score: 1

    There's a plugin to help you with that: NoSquint remembers on which sites you customize the font size and adjusts it accordingly when you return to that site.

    One of the benefits is that new tabs automatically get the correct size too.

  13. Re:"Moon is a Harsh Mistress" anybody?? on Magnetic Ring Could Launch Satellites, Weapons · · Score: 1
    Of course, maybe I'm just doing my math wrong. v^2/r at v = 7,800 m/s and r = 1,000 m gives you over 6,000 g's, not 2,000. Did I get something wrong or did the article?

    I wondered about that too. Maybe with "a 2 km wide ring" they meant a radius of 2000 m, not a diameter of 2000 m. But that still gives over 3000 g's.
  14. Re:I don't get it on Google Relents, Publishes Belgian Ruling · · Score: 1

    The problem is not with new articles; the problem is that the newspaper has a model where everybody can read new articles, but only paying subscribers can see old archived articles.

    If Google stores the articles, everybody can read the old articles without paying for a subscription.

  15. ThreadMaster on Permanently Set Process Priority in Windows? · · Score: 1
  16. Re:why am I hand-rolling my crypto? on Crypto Snake Oil · · Score: 1
    In CTR mode, the each encryption doesn't depend on other data encrypted before it. Thus someone could change a single 128-bit area in the cyphertext and it wouldn't affect anything else. This greatly reduces the difficulty at changing my cyphertext to change the plaintext in certain areas without it being detected after decode.

    I'm a layman in the field, but it just so happens that I just read Practical Cryptography. The book makes it very clear that you should never depend on encryption for checking the authenticity of a message. You should *always* use a cipher like AES in CBC or CTR or whatever mode for encryption and something else, like HMAC, for authentication.

    I guess on of the most important things is that I'm using crypto for authentication more than message hiding.

    Please use HMAC instead of AES with CBC or CTR for that.

    In other words, as far as I know anything about it, this shows exactly why it's dangerous for non-experts to create cryptographical applications.
  17. Thanks on YouTube Used for Whistleblowing · · Score: 1

    Thank you for taking the time and effort to make a transcription!

  18. Re:Wow a TubeCast! on YouTube Used for Whistleblowing · · Score: 1

    In my case it's the other way around: I prefer reading the text instead of watching the video, since I can read the text *much* faster than the time needed to watch the video. And also since it's easier to stop reading for a moment and come back later if something else grabs my attention.

    In fact I don't feel like watching the video at all, while I'm probably going to read the text if I come across it.

  19. Re:Biased question on A Working Economy Without DRM? · · Score: 1
    I think DVD releases with lots of extras, including some that aren't digital, are a good model.

    That's something that's often said, but is it really true?

    I know I don't care about any extras; I've watched the director's commentary, the interviews with the actors and the other extras on some of my DVD's and I thought it was just boring. I don't watch them anymore, and in fact I don't know anybody who likes them, let alone is prepared to pay more for the extras.
  20. Re:Many things will happen ... on Our Moon Could Become a Planet · · Score: 2, Funny

    A towel should be all we need.

  21. Re:Regular gas in a Ferrari? on A Memory Card Torture Test · · Score: 1

    Over here in Europe we use liters per 100 km. My car consumes about 5.6 l/100 km (it's a diesel), which is 42 mpg according to Google's unit convertor.

  22. Re:Aw piss on 'em on ABC Wants DVR Fast Forwarding Disabled · · Score: 1

    Damn, I wass still hoping (and even expecting) they would make God Emperor (and perhaps even Heretics and Chapterhouse) until I read your comment.

    Not living in the US I have never seen Sci-Fi channel; I only know them from the Dune DVDs. I had no idea that their quality was going down, but from your description it really looks I'm going to have to give up my illusions about the three last books.

  23. Re:Captcha is a nice idea but... on Web Users Angered by Anti-Spam 'Captcha' · · Score: 1

    A short and simple multiple-choice or true-false quiz might determine with some level of accuracy if the poster is a person or not.

    Spiro Agnew is
    a. a form of social disease.
    b. a jazz-fusion rock band.
    c. a former Vice President.
    d. the first woman in Congress.

    Making a "Hole in One" is
    a. every golfer's dream.
    b. too dirty to discuss here.
    c. something carpenters do.
    d. best done with scissors.

    My boss is
    a. a jerk.
    b. a total jerk.
    c. an absolute total jerk.
    d. responsible for my paycheck.

    Whips, chains and handcuffs are
    a. kinky.
    b. used by police departments.
    c. usually in text adventures.
    d. only permitted in Eastern schools.

    The G-Spot is supposed to be
    a. Ground Zero at a nuclear blast.
    b. a female erogenous zone.
    c. an unexplained astro- nomical discovery.
    d. the place where the FBI was first established.

    Lee Harvey Oswald killed
    a. Harvey Milk.
    b. Charles Nelson Reilly.
    c. John Fitzgerald Kennedy.
    d. William Randolph Hearst.

    etc. etc.

    Or just CTRL-ALT-X iirc.

  24. Re:POSIX on Squaring the Open Source/Open Standards Circle · · Score: 1
  25. Re:My Own Personal Thoughts On The Subject... on Bloggers are the New Plagiarism · · Score: 1

    This must be the Slashdot article with the most compressible collection of comments ever, with all those redundant repetitions copied over and over.