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User: Mathinker

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Comments · 1,998

  1. Moonbase LIGO on Gravitational Wave Detection Imminent? · · Score: 2, Interesting

    Wouldn't that make the Moon the perfect place to set up a detector?
    Vacuum at no cost, no tectonics(?)

    I'm not considering travel expenses and room and board... :-)

  2. Re:Top Speed on No One Wins NASA Space Elevator Contest · · Score: 1

    > Even for personnel, that's on the order of time it took to sail from Europe to America via
    > wind power, and people did that.

    They didn't need to bring their own air with them. They may also have caught fish for food and were able to obtain drinking water from rain or distillation (but possibly didn't know how to do that, I'm not an expert on sailing tech history).

    Of course, nowadays we'd be far ahead if we consider the problem of social isolation.

  3. Re:I like the idea of breaking up families. on RIAA Sues a Child · · Score: 1

    Reality check: from Wikipedia

    "A guardian appointed to represent the interests of a person with respect to a single action in litigation is a guardian ad litem."

    In other words, this guardian isn't going to replace the child's parents in any other respects...

  4. Re:Why are people so illogical about the RIAA? on RIAA Sues a Child · · Score: 1

    Since most of your interpretation of the facts seems to conflict with my idea of reality, I'd just like to emphasize one of the few things you got right:

          RIAA: "they might as well go out of business"

    Yup. Since in their segueing from a technologically-challenged business model to a public-relations-impaired one they show everyone that their forte is corporate greed rather than encouraging and selling music.

  5. Re:how they can stop piracy... use markers in the on Universal to Offer its Movies Online · · Score: 1

    Uh, ever heard of SDMI?

    Up to now, it doesn't look like industry is up to the really hard challenge of inventing a good watermarking scheme...

  6. Get rich quick on Short Gamma-ray Bursts Traced to Colliding Stars · · Score: 3, Funny

    The merger of two dense bodies causes gamma-ray bursts?

    Wow! Now I can get rich selling lead underwear the next time there's a Microsoft/AOL merger hoax

  7. Re:Well... on Stem Cells Restore Feeling In Paraplegic · · Score: 1

    Interesting...

    Ever worry about that "gray period" sometime in the (probably far)
    future which we will experience when AI systems start to approach the
    point where almost everyone will consider them as having
    consciousness? By your argument, after that point, we will have to
    start treating them as people (something which I generally agree
    with).

    With an AI system, the problem of deciding if it is conscious is
    much more difficult; with organic organisms we ordinarily use the
    criterion of "responsiveness" heavily, but that fails badly with
    AI systems, as they are (almost) all responsive.

    I think we're in for a tough time, ahead...

    Of course, much of the religious right will probably have no problem,
    by canonically denying the possibility of a non-organic entity with a
    soul.

  8. Dependency hell squared on Zimbra Collaboration Suite Launched · · Score: 3, Insightful

    I have a feeling that I'm not going to be installing this myself from source, seeing as they boast that they depend on 40+ other open source projects.

    And for anyone who was confused, it's not a drop-in replacement for Exchange servers or clients, it just does what Exchange does, differently. More or less, I guess, not having used it yet :-)

    Still, looks like a pretty cool piece of work.

  9. Re:Could be worse... on U.S. Announces Global Intellectual Property Plan · · Score: 1

    No, that would probably be much better, since it would mean as a side effect that Bush would be funding NASA to try to get to other planets.

  10. Re:remember the argument for not cloning MS? on Under the Hood of Office 12 · · Score: 1

    Hopefully they'll come to the conclusion that OO needs to be designed like Mozilla's products, where, if understand correctly, the UI can be (relatively) easily mutated into almost anything by changing XUL files.

    Then OO can easily accomodate users wanting clones of any past versions of Office's interface.

    Of course, I have no idea what kind of overhead that would entail.

  11. Reality slowly undermines corporate fantasy on Camera Phone As High-precision Scanner · · Score: 2, Insightful

    This is another nail in the coffin of corporate's insane fantasy of "copyright is our right to deprive the public of their rights", leading them to try to push DRM and anti-fair-use legislation.

    Looking at them reminds me of a drowning man trying to grab at anything to stay afloat. Unfortunately, they're more like the infamous 800 lb. gorilla-octopus which is making it unpleasant for me to live during their death throes.

  12. Side-channel attacks are not new on Keyboard Sound Aids Password Cracking · · Score: 1

    Many, many crypto papers are based on "side-channel"
    attacks like this one. These attacks are common and hard to overcome by design.

    I remember reading a comment at Bruce Schneier's blog that that when the AES competition was running, the NIST did not consider papers using side-channel attacks because the consensus was that no matter what algorithm would be chosen, it would be vulnerable to various side-channel attacks.

    Browsing the FA, I don't see any new material other than instead of learning to identify the keys from recording them being pressed one-by-one, the attack automatically calculates the sound-to-key correspondance using sounds of typing text from a known low-entropy source (like English language, or C code).

  13. SALT server supernovas on SALT Telescope First Light · · Score: 4, Funny

    In other news, an enormous emission of light and radiation is observed from SA as SALT's servers get slashdotted...

  14. Re:Speech interface made easy! - correction/bug on Top 8 Reasons HCI is in its Stone Age · · Score: 1

    Damn! Premature submitjulation! Messy!

    Didn't manage to properly redo the double French brackets of the quote or my parody in "Plain Old Text"...

    But why should "" disappear in "Plain Old Text" mode?

    See! I typed "<<" and got ""!

    Does "&lt;&lt;" work? Ahhh, of course!?! (don't ask what I have to type to get that)

    Maybe you should call it "Plain Old Text which will be interpreted as HTML"?

  15. Speech interface made easy! on Top 8 Reasons HCI is in its Stone Age · · Score: 1

    Say Tip a quarter to the right, crop by half and e-mail to Stevie Wonder.

    This guy deserves it when his computer promptly sends a micropayment to the person in the right side of the image.

    Oh, and all you slashdotters worried about Stevie Wonder's blindness preventing him from benefitting from that image, don't worry, he'll just:

    Say >>Tell me what is in the image.

  16. Re:As a record store owner, on Australian Court says Kazaa Users Breach Copyright · · Score: 1

    It might be clever understated satire, but it gets posted EVERY time the copyright/piracy/P2P thread hits Slashdot.

    Enough is enough...

  17. Re:Region Coding = Irony on Blu-Ray To Punish Users for Modifying Hardware · · Score: 2, Insightful

    Nah, it's not ironic, just $'s... region coding is designed to enable Hollywood to sell DVD's for big bucks and first in rich companies and cheaper and later in poorer countries. That way they can maximize their profits from globalization.

    Frankly I think they see most of the world market (e.g., China) as a burden rather than a benefit. Especially given the piracy which originates from that front...

    As for this Blu-Ray madness, I think it's more a reflection of the corporate schizophrenia of Sony --- you know, that company which is has a big division which sells media content and another big division which sells hardware to play content?

  18. Paypal - uggh! on PayPal Freezes Hurricane Relief Account · · Score: 1

    After trying to submit a comment on their privacy policy, I quickly became convinced that their customer service department was either reply-bots or incompetents.

    It took at least 4 iterations until I finally got what could have been an immediate no-brainer "We forwarded your comment to our lawyers"...

    Or maybe the CS staff has guidelines like "only people stubborn enough to reply 4 or more times to off-topic garbage can get forwarded to the legal department"...

    After that it only took me a quick Google search for all the disgruntled customer sites to convince me to avoid them if at all possible...

  19. Re:too late on Apple Is Accused of Violating Software Patent · · Score: 1

    Wikipedia http://en.wikipedia.org/wiki/Allan_Sherman
    says he actually died of emphysema, which although usually a self-inflicted disease falls short of what most would classify "committing suicide".

    Personally, I remember being told it was a heart attack...

  20. Wistar Institute's own PR on Australian Science Makes the Regenerating Mouse · · Score: 1
  21. Re:Isn't there a -1, WRONG? on Hashing Out the Next Step in Biometric Security · · Score: 2, Insightful

    OK, "mea culpa" --- I got bits and bytes mixed up
    in the calculations of my previous post.

    It looks less impressive when you have to divide
    by 8 to get bytes...

    That still doesn't make doubling the
    hash lengths every time they're broken a good idea.

    Unless you think the minimum message length will
    be increasing similarly?

  22. Re:Isn't there a -1, WRONG? on Hashing Out the Next Step in Biometric Security · · Score: 2, Informative

    Although I agree that the GP seems pretty clueless with respect to basic cryptography, as you say, I have to correct you and the numerous following posters about the "irreversibility" of cryptographic hash functions.

    It is true that theoretically, these functions map an infinite domain of messages into hashes and therefore every hash has an infinite number of possible pre-images. This theoretical irreversibility is dependent on any random string being considered a possible pre-image.

    In practice, if one hashes a message with very little entropy, e.g., an English ASCII message is known to have 2+ bits of information/byte so given a 128-bit hash one would expect to be able to be able to find only O(1) English ASCII pre-images of lengths up to 512 bytes (rounding 2+ down to 2). If the message were to additionally be known to include a signature by a known public key using a 160-bit hash function you could then invert messages whose English text was up to 1152 bytes long!

    Your "solution" for making "virtually unbreakable hash" functions just makes this problem much worse. And the idea that you seem to espouse, that just making a hash "large enough" is going to make it useful cryptographically is just ridiculous.

    The first thing that should be taught in a "basic cryptography" course is that doing cryptography right is hard. Read the "Beware of Snake Oil" section Phil Zimmerman wrote in the manual for PGP 2.6.2...

    (Oh, one more thing --- you should beware of throwing around buzzwords like "RSA" and "quantum cryptography" until you check out what they really mean --- or at least check your typing)

  23. Summarize Proust on Sony and Toshiba Give Up On Unified DVD Format · · Score: 1

    I predict that the average Joe, confused over the options, will choose the format....

    ...(drum-roll)...

    which looks cooler when hung from his rear-view mirror!

    (Your average Jane, however, doesn't always choose the better-hung format!)