Slashdot Mirror


User: polymath69

polymath69's activity in the archive.

Stories
0
Comments
222
First seen
Last seen
Profile
(view on slashdot.org)

Comments · 222

  1. Re:Ackthpt's Theorem on Bloggers 1, Smoke-Filled Room 0 · · Score: 5, Informative

    Pretty much the only way Alaska could come up with that money is to increase taxes.

    On some level that's true, but is it an informed opinion? Are you aware that basically Alaska doesn't have any taxes?

    In fact, Alaska gives away money to residents due to its huge oil surplus.

    But they still want everybody else's money for their pork.

  2. Re:Elections on Company to Pay for Election Problems · · Score: 1

    This is the final time to make changes - choose to make a change and the ballot is visibly shredded and you get to try again. Choose to accept and the ballot is visibly inserted into a voting box.

    [...] This would be foolproof.

    And if you see a playing card or a dollar bill torn up before your eyes, it's gone forever; and if you see a lady visibly cut in two, she's got to be daid, right?

    You can't trust your eyes. The system you describe might have two printers, the fake one of which shows its output through the window. It might use thermal paper with overprinting where one output fades and another appears. Who knows? But don't just trust your eyes.

  3. Re:Not sure how it works... on Computer Voodoo? · · Score: 1

    This trick even works non-destructively: dd if=/dev/hda of=/dev/hda bs=512

    This is an intriguing idea and probably a very good one; it seems logical enough. But it would be remiss of me not to shout with the voice of painfully acquired experience:

    Don't ever try this on a disk with any mounted filesystems!

    Boot Knoppix, DSL, or something of the sort before even considering this.

    Painfully acquired. Learn from my mistakes.




    On the other hand, it's sort of interesting watching your system disappear due to a typo like

    # rm -r . *
    and suddenly /bin/ls isn't working, /bin/ps isn't found, puzzled huh? Best bet is to hit the power 'cause you're a lot slower than the computer.

    But there is a situation where this tip can help; that's the out-of-memory condition where you get messages like "can't fork: /bin/ls". Rely on the shell builtins. "echo *". "cd" is always a shell builtin. "exec" as a last resort, but know the builtins because when your system is at this point, "man" isn't a shell builtin.

  4. Re:Sun or Earth? on Our Moon Could Become a Planet · · Score: 3, Interesting

    I think Asimov said something like this in one of his thousand books. His argument was that, unique among (known) moons, Luna's orbit is always curved towards the sun, making it more of a coplanet than a proper moon. But I can't remember which book it was, unfortunately.

  5. Re:Where do scientists think the edge is... on Voyager 1 Passes 100 AU from the Sun · · Score: 4, Informative

    To the best of my knowledge, friend, there is more than one definition of "edge".

    There's the magnetopause, where the magnetic influence of other stars predominates that of our own... to my knowledge, both Vger's are beyond this point.

    There's the heliopause, where the outward flow of solar gases finally doesn't have enough pressure to overcome whatever's coming its way... to my knowledge, neither Vger has hit this point yet.

    And considering that both Vgers were both launched basically along the ecliptic, neither one is likely to be headed towards the closest heliographic star, which is in the Southern hemisphere (Terran, not ecliptical; but if something's never north of one, it's probably never north of the other.) Neither is the shape of either 'pause likely to be spherical; they would depend upon the distances, relative magnetic field strength, and relative gaseous flux of every star around us.

    Finding these things out, in some small way, is one reason I'm very glad the Voyager spacecraft have lasted so long beyond their design dates.

  6. Re:In breaking news... on RIAA Ends Harassment of Grieving Family · · Score: 1

    I know you were trying to be cute, but RIAA is compensated for music played at a funeral if the music is supplied by the funeral home.

    You're probably thinking of ASCAP and/or BMI. Here's a little bit about how they work.

    Technically, any performance of a copyrighted work entitles the copyright holder to whatever royalties they see fit to negotiate.

    Fortunately, in most cases all they can ask for is up to the price of a compulsory license, which is generally set to be quite inexpensive.

  7. How do you trust? on Best Online Remote Backup Service w/Linux Client? · · Score: 2, Interesting
    Presumption: Backups are intended for crash or loss recovery.

    Presumption: After a crash or loss, you may not have access to any of your own encryption keys.

    Query: How can you possibly trust any third party not to take liberties with personal or business information entrusted to their care?

    I really think you're better off taking care of backups in-house, along with of course keeping some of those same backups off-site in a secure manner.

  8. Re:It's not really a 'hack' per-se on Cell Phone Reception Hack · · Score: 1
    Well, the word "hack" and "hacker" originates from the hardware side of things.

    Well, that's certainly true. But all this guy did was extend reception by 5 feet on a fixed unit. 5 miles on a mobile unit would be a hell of a lot more signifigant, and much more in line with what I expected to find from the article title.

  9. Re:The easy way on Managing Parallel Development in Two Languages? · · Score: 1
    I am not picking on you, but the thing that I am about to say is one that I wish appeared on the record more often.

    So it won't be nor faster nor (a lot) easier.

    This should have read, "So it won't be either faster or (much) easier." This could be rewritten in ways providing a choice between "either/or" or "neither/nor" but "nor/nor" doesn't make sense. There is also the misuse of "a lot" to mean either many or much.

    My own imperfect skills in grammar were not drilled into me by nuns with their rulers across my knuckles, but by the fact that most of the reading materials available had been either properly written, or properly edited. I absorbed these rules more through osmosis than that anyone ever taught them to me, or even tried to.

    But isn't it obvious that the less children are exposed to proper grammar, the less they will be able to absorb the proper principles, and so the less they will even try to produce it? Our language just might deteriorate into nonsense if everyone doesn't take steps to preserve it.

  10. Re:one comment, one addition on Stupid Engineering Mistakes · · Score: 2, Informative
    The specs called for two "C" shaped beams to hug a metal rod as so - ]|[

    They were assembled like this - [|]

    No; that was true of both the original and the assembled plans. What failed was (a) the original plan could not be put together as designed and (b) the suggested change seemed innocuous to the guy on-site.

    The plans were for one rod to carry the weight from the ceiling through to all the walkways, being threaded at each level and bolted on. Problem was, you can't fit a threaded rod through a straight hole. So it was changed to make it possible; only now rods weren't simply under tension, but I-beams were under torsion too. So they tore out.

    One error + another error = 144 dead and 200+ injured. But not the way you said.

    Source: Why Buildings Fall Down, pp. 224-229, Levi & Salvadori. If you don't have this book on your shelf, why don't you?

  11. Re:Painting something black doesn't make it invisi on Cloak of Invisibility Coming Soon · · Score: 1
    James Bond had an invisible car? I don't remember seeing that...

    Invisible cars... *snap* that explains it! Here it is, after the year 2000 and I'm always wondering, where are all the flying cars? They must be invisible. So simple an explanation... I wonder why it never occured to me before...

    But seriously, the biggest problem with traditional invisibility is that the user would be blinded, as any photon sensed by the user is one not passed through. The third biggest problem would be non-invisible surroundings like dust, clouds, water, etc.

    Second biggest, though, is that any non-magical "cloak" would have to operate slower than c. In normal transparent materials this happens too, causing the effect we call refraction. Thus the user of such a device would appear as a large, irregular lens. I'd love to see a raytraced short of just what this would look like.

    (I really don't remember Bond having an invisible car. What film was that?)

  12. Re:GPL? on Real Networks to Linux - DRM or Die · · Score: 2, Informative
    a rewrite of an X server where the display device is "a file on the harddrive"

    No need to rewrite; the Xvfb (virtual frame buffer) server has been part of X for a long time.

  13. Re:Is it tasty though? on New "Hairy Lobster" Crustacean Discovered and Classified · · Score: 1
    Water is most dense at 4 degrees celsius [...] the water in the ocean's depths is 4 degrees celsius

    No. It's the pressure.

    It is true that fresh water at one atmosphere is most dense at 4 degrees C. But neither of those is relevant here. See lovely chart here for temperature patterns above and below the thermocline.

  14. Re:Is it tasty though? on New "Hairy Lobster" Crustacean Discovered and Classified · · Score: 4, Informative
    A lot of deep sea creatures have ammonia in them for anti-freeze

    Not saying you're wrong, but why would they? It doesn't make sense. After all, the pressure at depth stops the water from freezing, and so would automatically do the same for any creatures adapted to that environment. Chemical antifreeze would only be required for near-surface beasties, where the pressure isn't there to do the job.

    What I'm wondering is what the hairs do when moulting: do they stay with the old shell, or pull through leaving sieve-like holes? The latter would seem to be extraordinarily difficult.

  15. Re:Not too sympathetic. on Third Party Code Review? · · Score: 1

    Adjust the last line
    Make it "Having fries with that?"
    And you've got Haiku.

  16. Re:If I was going to buy it.... on The Optimus Mini Keyboard · · Score: 1
    I'd be more interested in programming the displays to show something useful.
    You wouldn't want to use the Optimus, then... a display lifetime of 5000 hours is under 7 months full-time usage. As pretty as it is, who'd want to replace it all the time?

    You want something more like one of these. (And, for that matter, so do I.)

  17. Re:According to my standards... on When Should You Stop Support for Software? · · Score: 1

    What do you have to do to get a page that works in Lynx but breaks in Netscape? (Just curious.)

  18. Re:HD for dummies on 50% of HDTV Owners Don't Use HD · · Score: 1
    Can't seem to find the original slashdot article though.

    Search by score (why is "by date" the default?) and find:

    MGM's DVD Class Action Settlement.

  19. Re:National TURN IN YOUR: Pringles cans? on Possession of Cantenna Now Illegal? · · Score: 1
    In other words, as soon as you finish eating Pringles, you've committed a crime.

    Lays: "You can't eat just one"

    Pringles: "You can't eat the last one"

  20. Re:That's slick on Deep Impact on Comet Theory · · Score: 2, Interesting
    Yeah... did they mean "faster than about 1000 km/h" or "faster than 0 cm/yr"? Of course, once you have a cloud of dust in space, it's no longer quite a vacuum, so maybe some sound could travel through it in some fashion, depending on its density.

    The article looked like crackpot stuff to me, but what clinched it was this from the linked article on megalightning:

    One might have expected this photograph to catch the attention of media around the world. But NASA officials seized both the camera and the photograph itself, prohibiting the San Francisco Chronicle from publishing it after the newspaper had received the picture.
    Yeah, sure NASA has more authority than the First Amendment. Bet these crackpots buy their tinfoil in bulk.
  21. Re:How hard is it to find the same brand. on Safeway Club Card Leads to Bogus Arson Arrest · · Score: 1

    TFA said it was a store brand firestarter with the label still attached. Why would any store carry advertising in the form of a competitor's product? Perhaps you have succumbed to the influence of your .sig ...

  22. Re:If I break in your car... on Security Researcher Faces Jail For Finding Bugs · · Score: 1
    Yes, I do know what a ward is; that's why I used the term. However, it might have been a pin lock for all I know.

    It's mostly your use of the phrase "there weren't enough sizes for each ward" that throws doubt on your understanding. The sizes of the wards don't matter; their position does. Meanwhile, the sizes of the key landings in other types of locks are the critical characteristic.

    I suppose you might consider an incorrectly set pin to be a type of ward, but that's certainly not how the term is normally applied.

    In either case, the point is that there wasn't enough variation in the key patterns.
    And that point was quite correct. Cars can often be opened by keys from similar models.
  23. Re:If I break in your car... on Security Researcher Faces Jail For Finding Bugs · · Score: 1
    The key was short, with only a few wards, and there weren't enough sizes for each ward.

    Doesn't sound like you know what a ward is. Basically, in a warded lock, a ward is a part that prevents the wrong key from working. (In a pin or disk lock, the key parts allow only the right key to work.)

    The best-known warded locks are those cheap Master padlocks where the keys look sort of like herringbones. If you file off all of the intermediate pins from a given key, the result will open any lock of that design, because it's the bit at the tip that releases the lock, and all the other bits are only there to stop wrong keys from turning.

    (There's a bit more to it than this, but this isn't the place for it.)

  24. Re:PDFs are there... on Tax Time Again: Any Linux Solutions? · · Score: 1

    And why should anyone trust this? The site looks like phishing to me.

  25. Re:Microsoft Windows is the problem, not the devic on Limitations in Current Breed of Palm Handhelds? · · Score: 1
    Grandparent wrote -

    Also there seems to be no way to copy arbitrary files to the Palm -

    Let me just amplify one point about pilot-link -- one which had eluded me until recently. Yes, it's a great toolbox and this is one of the things it handles. The tool for this is called pilot-schlep.

    A quick read of the manpage makes it look like pilot-schlep is for installing files to the Pilot. As such, I mistakenly decided that I'd just learn and use pilot-xfer, which is more general-purpose. But pilot-schlep isn't for schlepping files onto the Pilot, but for schlepping files around with one. Just what you need. In short, it packages up arbitrary files into a .pdb format for installation and unpackages them later. Dandy!

    The dlpsh debugging shell is pretty cool, too.