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User: ObsessiveMathsFreak

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Comments · 4,938

  1. DRM on Amazon Plans Music Service To Rival iPod · · Score: 0, Flamebait

    Is it going to be so crippled with DRM that I can't so much as plug a second set of speakers into my PC to listen to it on? This is all from the same company that stocked those Sony rootkit CDs. Do you really want to trust your system to them?

  2. Re:What about n00bs? on Meng Wong's Perspectives on Antispam · · Score: 1

    Seriously, I sometimes wish you needed a license to operate a computer.

    You do. It's called an EULA.

  3. Re:-=M-O-D Parent D-O-W-N Please=- on Toxic Toads Taking Over Australia · · Score: 4, Funny

    What a gay attempt at FP'ing. +5 just because you can cut and paste? Give me a break. But these people are the ones who get the modpoints.

    Good Sir, know that you speak of TripMasterMonkey, whose karma whoring has passed into legend, even on these most whore filled of boards.

  4. Re:Shamir on Cellphone Could Crack RFID Tags · · Score: 1

    Want to think of another reason why no one is encrypting email?

    Because unencrypted standards are firmly entrenched... thanks to RSA!

  5. Re:The Law of Inintended Consequences on Tech-Ed Funding to be Tied to Copyright-Ed? · · Score: 1

    But, so long as the education is accurate, can you think of a better thing than a population who understands copyright law, what a mess has been made of it, and how crippling the status quo is? Anything that serves to inform is good.

    You've obviously never heard of abstainence only sex education.

  6. Re:Users.. on Advanced Requests and Responses in Ajax · · Score: 1

    Between 7% and 10% of web users have JavaScript turned off either implicitly or due to their IE security level. Surely if you're creating an AJAX application then you must realise the application is already unavailable to 7% of users even when your server is up and running?

    Those users aren't cool enough to count. Not for AJAX man!

  7. The Corpse Floats on Opera on the Nintendo DS · · Score: -1, Troll

    Within just five seconds of turning on the system, the Nintendo DS is already fully operational.

    80 seconds after this, Opera should be fully loaded and ready for browsing.

  8. Hmmmm.... on Developing Games with Perl and SDL · · Score: 5, Interesting

    It sounds good as a learning tool. It would be great if budding game coders, especially younger coders, could be given a simpler enviornment in which to begin toying with graphics and sound coding.

    However, it's in Perl. And I really have to ask myself; Do I want to play games coded by people who started programming games in perl?

    But seriously, whenever you code a game, you always end up using a scripting language of some kind. Perhaps this just cuts out that virtual middleman that is c/c++?

  9. Slash-farr on Computer Addiction or Just Modern Life? · · Score: 1

    As logical as your comments may seem, you forget that Slashdotter mating rituals revolve around the Slash-farr, a time of great illogic and ungeekery, where basic instincts rage to the fore and Slashdotters seek out a mate.

    It is a dangerous time. The Slash-farr can only be quelled by a Slashdotter taking a mate; by ritual flamewar; or through deep meditation involving the fabrication of a sufficiently advanced "gadget", such as an OS filesystem, device driver, esoteric hardware project or three dimensional video game.

  10. Re:It's Light on Einstein's Theory Improved? · · Score: 1

    My point is, this 1/r effect affects nothing. You always measure the same value as you would if you assumed 1/r^2 only. Furhtermore, if you move towards a star, you will see its mass decreasing, this is true. However, if you move away from a star, you will ALSO see its mass decreasing, because you are always travelling slower than the light that is bringing the mass away from the star.

    That's right, but I'm not talking about moving away from the star or measurments at a fixed distance. I'm talking about the fact that essentially, different observers measure different masses for the star, depending on their distance, at the same points in time. Those farther out, measure more than those closer by. The net effect of all this, is that if you're applying a 1/r^2 law to the effect of a star on all the stars in its local galaxy, then that isn't going to give you as accurate an answer.

    I believe that the measured speed of rotation in galaxies supports a 1/r rule for gravity, and this I believe is what MOND theory is all about.

  11. Re:Shamir on Cellphone Could Crack RFID Tags · · Score: 5, Insightful

    For one thing, mathematics should never be patentable. For another, there was already Prior Art invented at GCHQ in the UK -- but because of its nature, it was kept hushed-up.

    This "prior art" did not count as it was unpublished. However the point about the mathematics is exactly correct. Shamir is one of the the greatest trinity of conmen to ever plauge the computer industry.

    If you ever want to know why you still don't have encrypted email, this guy is 33.33333....% of the reason.

  12. Re:It's Light on Einstein's Theory Improved? · · Score: 1

    Remember, they are using the arriving light to make the measurement. They see the sun as it was at the time the photons started their journey.

    Right, yes sorry. They will "see" the same mass that they measure using gravity. OK.

    Now rethink what happens.

    I did. The gravity from the light decreases as 1/r. It's like a planet with an atmosphere whose density is proportial to 1/r^2. Objects closer to the center expierience less mass at the center than those further away.

    If you think otherwise, could you not phrase your point in the form of a question.

  13. Re:If you replace enough files... on OSx86 Cracked Again · · Score: 3, Interesting

    If not, why not? Why buy multiple copies for multiple machines? It's only the "license" that is preventing you from doing otherwise...

    And the licence is justified because.....?

    Software doesn't just want to be free, one must go to extraordinary lengths to make it un-free. If Apple want to put some ridiculous EULA in their shrink-wrapped software, fine. Expect me to laugh at it while I do whatever the hell I please with my purchase in the privacy of my own home.

  14. Re:If you replace enough files... on OSx86 Cracked Again · · Score: 1

    I see it as just a semblance of respect for the work of others.

    What exactly makes Apples product worthy of my respect to the extent that I won't try and exercise the rights I obtained on purchasing it?

    Are we all just supposed to sit an gawk at the OSX Kool-Aid after we've bought it, skipping gleefully through the sparkling SVG hoops that Jobs and Co have ordained we dally through. Maybe we could all just do whatever the hell we want with our own property and if people spill their cappuchinos in shock at our irreverance, well sorry, that's just how the beans boil.

  15. Re:US censorship exists! on Chinese Claim Internet Censorship Modeled on West · · Score: 1

    All those 19 million results? Not that much horse sex, and even fewer videos!

    Thank you for restoring my faith in humanity.

  16. Re:It's Light on Einstein's Theory Improved? · · Score: 1

    So, if you sit at some distance from the sun, and measure its mass by both its radius and its gravitational pull, what result will you get?

    Different answers. Keep going.

  17. Re:It's Light on Einstein's Theory Improved? · · Score: 1

    I'm not sure how the size of the sun comes into it, but if both observers could somehow "measure" the suns mass from its gravitational pull, they will both come to slightly different answers.

    The result is analagous to decreasing gravity as one moves towards the earths core, instead here, the "density" of material is proportional to 1/r^2, in a very simple model.

  18. Re:It's Light on Einstein's Theory Improved? · · Score: 1

    Think spatially.

    There is more mass from the sun pulling on earth than there is on mercury. Take a snapshot in time.

    For both the mass is slowly decreasing, but at a moment in time, both expierience a different "mass" for the sun.

    Now go out to galactic distances and do the maths.

  19. Re:That's great! on IM On Mobile Phones · · Score: 1

    It'll be over IP, and most people already pay (through the nose) on the volume they send.

    Too true. Let's put an estimate of 200 bytes per message sent, say, including all the communication overheads. Current rates for my operator at least are around 2c per KB. Times say, 25 messages per session, adds up to about 10c for a fairly brief chat.

    I'm probably off on the message content size. Obviously this will vary a lot. Clearly, images are out of the question. leet speak would be a must here to keep the message size down. It's still cheaper than SMS, but this was hugely overpriced anyway.

  20. Re:Buzzword alert on Online Ajax Pages The New Web Desktop? · · Score: 1

    Does this make sense now?

    No. I still cannot see how AJAX can magically make bandwidth "disappear" by implementing dynamic formatting. You seem to assume that Slashdot is already using such a database query system. It isn't.

    Content on slashdot is delivered using perl to generate html when customisation is needed. This introduces overheads, but is still a largely minor operation. Database caching is used to cut down substantially on overheads.

    With AJAX, you introduce search, communication and query overheads that a simple perl script based on string queries simply does not have. Users clients will request data all over the place, and with AJAX, typically there is no idle time as comments are constantly being retrieved and updated. In other words, AJAX clients will want "everything", and they will go looking for it. Otherwise, what's the point of AJAX? Your database caching will now have to cache "everything", not just what people are looking at.

    And the cost of such a system? Enormous. Both in terms of time, money, and testing. Not to mention the fact that javascript is not a standard browser feature. Many clients have it disabled. So now what? Serve HTML and AJAX?

    What's the benefit of AJAX? All that additional code and complexity for perhaps 20% bandwidth gain on markup costs? And how much of that will you lose on all the additional communication overheads and extra queries, not to mention all that unrequested data being shuffled to clients.

    Running AJAX on Slashdot would be like running a newsreader that fetches all messages _and_ their content on USENET. All you want with a newsreader is the headers, and then you decide if you want to get the rest of the message. This is what Slashdot currently does and this is the smart way to do it.

    If you've got some smaller site with perhaps 500KB worth of comments, fine, go ahead and use AJAX for that "loadless" feel, but be prepared to pay the price for it. On Slashdot, that price would quickly entail Taco's vaporisation faster than you can say "Skynet has gained sentience".

  21. Re:It's Light on Einstein's Theory Improved? · · Score: 1

    (Hints to get you started: That light has to come from somewhere. Mass-energy is conserved. Alternatively: Orders of magnitude.)

    That's really the whole point. The mass within a sphere surrounding the star is not constant as this sphere increases. Objects father away from the star detect more "mass" centered at it.

    If you think about it for a while, it makes sense that it's not right to assume that every object surrounding a light emitting star will experience a gravitiational field caused by the same "point mass" simplification. The point mass grows as you move father away from the star in space.

  22. It's Light on Einstein's Theory Improved? · · Score: 1, Interesting

    It's not dark matter. It's light.

    If you check the equations, you'll find that light from a star causes its gravitational field to fall off as 1/r, whereas its mass causes it to fall off as 1/r^2. This is an old equation, originally derived for the gravitational field of a candle.

    Needless to say, this effect is only present within the "sphere" of radius (speed of light)x(age of star), but of course for most stars, this is enormous. Galaxy spanning in fact.

    This is all relatively offtopic by the way, but given the controversy surrounding dark matter, and the dubious qualities of "landscape theories" lately, I thought I'd throw this one into the mix as well.

    I wonder if this is what the guys have come up with actually.

  23. Re:Buzzword alert on Online Ajax Pages The New Web Desktop? · · Score: 1

    Slashdot currently serves static HTML pages. User clicks, a wad of text/html is sent to their client. No mess no fuss.

    With AJAX, Slashdot must serve terse content on the fly. Users will each request different updates, to different sections at different times. Th eserver will have to analyse th erequest, fetch the data from a database, and send that to the users. Searching a database is a far, far more computationally intensive operation than simply serving up a static webpage.

    If you decide to somehow solve this by feeding some kind of static "update page" to the AJAX clients, that won't work either. Most clients will get a lot of comments they weren't going to read anyway, so you've just wasted bandwidth. A lot of clients won't get what they want, or won't get it fast enough, so you'll have to either give them everything in the beginning and frequent updates, or go back to the custom request database model mentioned above.

    AJAX on Slashdot sounds nice in theory, but is in fact a rather silly idea.

  24. Sediment? on Mars Rover Finds Unusual Rocks at 'Home Plate' · · Score: 3, Interesting

    I'm no geologist, by those layered rocks look like some kind of sendiment formation to me. Which would make sense if mars had water bodies of some kind.

    Then again they could just be volcanic rocks.

    Can any of Slashdot's resident geologists solve this mystery in three of less posts?

  25. Re:Minimum standards on US Lawmakers to Keep Google Out of China? · · Score: 1

    1. Child Labour laws ....grumble....

    2. Free Speech ....hmmmm....tutut.....grumble.....

    3. Environmental regulations

    AHA!!! COMMUNIST!!!
    Disregard 1 and 2. On with the profiteering!!!