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User: SteveAyre

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Comments · 193

  1. Re:The Space Elevator is a great idea, on Interview with Dr. Bradley C. Edwards · · Score: 1

    Shoot the Muzak speakers :o) It'll be at least 4 days before they repair them. Heaven.

  2. Re:Phishing is still a problem on Lloyds TSB Pushing New Online Security Protocol · · Score: 1

    Ah. See what you mean.

    I use Lloyds TSB banking and they do do this, so the device'd be useful after all! :o)

    (For those that don't know it currently only needs the login password and not letters from the memorable phrase again so even a normal keylogger'd give enough to get around this on the first go).

  3. Re:Phishing is still a problem on Lloyds TSB Pushing New Online Security Protocol · · Score: 1

    But if they're a site which is a proxy that you're viewing the real site and they share the same login session (possibly with the proxy going to a dummy page when you click Logout so the session doesn't expire and the phisher stays logged in) then it does defeat this system.

  4. Will have no effect on some phishing methods on Lloyds TSB Pushing New Online Security Protocol · · Score: 1

    Surely if there is a trojan acting as a proxy to several online banking sites running instead of a keylogger (the possibility of which was raised in an article posted on slashdot noting the banks are always several steps behind) where the user logs in *for* the phisher (logout is ignored, gives a fake page at which point the phisher can keep using their session) this will have not effect at all?

    This type of phishing attack may not exist yet (I haven't heard of any real world examples of it yet) but it's definately feasable.

  5. Re:I wouldn't hold my breath on Finding Coding Work Through Placement Websites? · · Score: 1

    I've got the same problem. I'm from the UK.

    I joined the site years ago, but I've never actually bid? The reason being that the bids already made are usually a tenth of what I'd want as a minimum.

    You could make higher bids yes, and hope that the guy decides you're likely to make a better job and pick the higher bid BUT if it's the first project you've done on the site, you have no feedback and show up as having done 0 projects.
    Not the best looking profile.

    So you'd find it hard to get onto the first rung of the ladder unless you lived in a country where you could afford to make a lower bid. I'm sure some (but as with anywhere else, not all) of them are quality programmers as well at that price.

  6. Re:hmmm, matter absorbing energy? on Solar Flares Shield Astronauts from Cosmic Rays · · Score: 1

    "Some parts are North poles and some parts are South poles so the overall poles shift as they move around."

    Oh and just to clarify, I hadn't meent these were monopoles although I do see why it reads that way.

    Each convection hotspot creates its own magnetic field. Thus has a North and South pole and flux lines between them.

    There are many hotspots, hence many North&South pole pairs. They move around as the hotspots move around.

    They all add up when combined in the core to produce one large magnet with a single pair of North and South pole.

    As the hotspots move, the magnetic poles move (this is well known). The strength of the field also changes as some of the convection currents are making the overall field stronger while others are making it weaker - as some appear, disappear or reverse direction the overall field's strength varies.

  7. Re:hmmm, matter absorbing energy? on Solar Flares Shield Astronauts from Cosmic Rays · · Score: 2, Informative

    Ok, didn't check that bit - it was from memory.

    Looking on Google again I found what I'd been think of. It's the Geodynamo if anyone want to look for it.

    "Currents flowing in giant loops through the earth's core."
    You're pretty much correct there on how they think it happens.

    Basically the guy noticed that the direction the molton core convects is different in some places than others. And it changes the way the magnetic flux acts.

    When the convects in one direction, the flux goings in one direction; when it convects in the other the flux reverses the direction (which is what I was thinking of when I said about the North/South poles).

    Lots of pretty pictures on a few sites talking about the Geodynamo, I'm sure there'd be more stuff around if anyone wants to look for it.

    http://www.psc.edu/science/Glatzmaier/glatzmaier.h tml
    http://www.psc.edu/research/graphics/gallery/geody namo.html

    The first two animations on that page show fairly when what's happening.
    The core of the Earth is rather chaotic in terms of which direction the convection is happening in and therefore which direction the magnetic flux is in (this is what I'd been thinking of).
    These bits change over time and move around to different points under the Earth's surface (think hotspots which move and cause chains of volanos which are all dormant apart from the ones at the end).
    Which direction the flux moves in overall is essentially a complex summation of where these lines of flux are moving.
    During the reversal lots of areas of convection change direction and change the direction of their flux. As they do so the overall lines of flux move and weaken, until they swap around.

    This is quite an informative page on magnetic field reversals, and it talks about the Geodynamo at the end.
    http://www.geomag.bgs.ac.uk/reversals.html

    Obligatory Wikipedia links:
    http://en.wikipedia.org/wiki/Magnetic_polarity_rev ersal
    http://en.wikipedia.org/wiki/Geomagnetic_reversal
    http://en.wikipedia.org/wiki/Geodynamo
    http://en.wikipedia.org/wiki/Dynamo_theory

  8. Re:Being pedantic perhaps... on Arrays vs Pointers in C? · · Score: 1

    Depends what your doing I guess. Some things might be easier to track and others not.

    I'd say it's more useful in situ - malloc followed by memcpy or str(n)cpy yourself would let you copy it first if you you didn't want to change the original string while you could still do it on the already allocated string if you wanted.

    Besides which if you do a malloc then you're wasting extra memory - which is what the submitter said he didn't want.

  9. Re:hmmm, matter absorbing energy? on Solar Flares Shield Astronauts from Cosmic Rays · · Score: 1

    Lots of results on Google.

    Turns out that the last time was 780000 years ago. It's not very precise but they usually happen every 250000 years so we're *long* overdue for it. And it does appear to be happening now, so the flip will slowly happen over the next couple of millenia.

    Some scientists aren't so sure it is going to flip though, as the past 2000 years have seen it just about the highest it's ever been, so it might just be returning to a reasonably normal level.

    The reason it flucuates so much by the way is it depends where the rocks in the core are. Because they're all molten, they flow and move around. Some parts are North poles and some parts are South poles so the overall poles shift as they move around. I remember someone modelling these movements on a computer and that model said it would collapse over the next 1-2 millenia.

  10. Re:hmmm, matter absorbing energy? on Solar Flares Shield Astronauts from Cosmic Rays · · Score: 1

    Every few thousand years the Earth's poles shift. From various volcanic rocks we can see how often it happens and it's a very regular occurence, every few thousand years.

    The people looking into it have already noticed the field is weakening and has been for hundreds of years. The rate at which it gets weaker will also get faster and faster until it collapses entirely.

    I think it's due to completely collapse in 500-1000 years or so, before growing again but the other way around.

    You're right about deflecting the particles though - while it's collapsed the Northern Lights'll be visible from as far south as London and I think Paris and the extra radiation exposure will probably mean cancer rates skyrocket.

  11. Being pedantic perhaps... on Arrays vs Pointers in C? · · Score: 1

    Being pedantic perhaps, but you might get a buffer overflow in your code if for some reason it doesn't have a NULL at the end.

    Better would be to call the subroutine with (char* str, size_t length) and to replace strlen(str) with str+length.

    The subroutine then becomes useful more often too - you can then reverse portions of strings as well as the entire string if you want to.

  12. Re:What if their anxiety disorders involve needles on Anxiety Disorders Discoverable by Blood Test · · Score: 2, Informative

    Actually I think they were refering to needle phobias. My girlfriend has one.

    It's nothing to do with *what* is being injected/taken out. It is the sight of the syringe or needle. She cannot watch anyone else having one done without feeling sick and used to be unable to even look at a photo of a syringe on its own.

    As far as having an injection, such as for a vaccination she gets hysterical and loses control. In the past several people have had to pin her down while she has the injection.

    I have always thought the extra trauma of this probably just makes matters worse. Giving her a temporary anesthetic which lasts only a minute or so would be far nicer.

  13. Re:NOT Informative on Good bye Dark Matter, Hello General Relativity · · Score: 2, Insightful

    If the only way we observe Dark Matter has now been explained by something else, and it interacts with the rest of the universe in NO OTHER WAY, surely we can just assume it doesn't exist, whether it actually does or not? If it does exist it's not making any difference so everything is occurring in the same way as if it didn't.

  14. Re:Wafer? on Carbon Nanotube Memory on the Way · · Score: 1

    Wafers are normally cut up into many smaller chips, so it could be a 13 inch wafer holding n 10gb chips. Not sure whether that's the case or not.

    It's probably also a prototype and the size'll shrink more soon.

  15. Re:SImple viscosity? on 2005 IgNobel Prize Awards · · Score: 1

    But what you're pushing against is denser, so can grip against it. You don't waste energy as much energy moving the water, so you'd get a bigger push forwards instead. The question is whether it'd make up for the greater drag (due to viscosity) or not.

  16. Re:Hmmm... on Schneier: Make Banks Responsible for Phishers · · Score: 1

    Actually, I don't believe adding additional protections to the websites is the idea.

    Indeed. It's been already pointed out (on an article on listed on Slashdot some time back) that all they need to do is get a trojan onto your machine which either logs keystrokes, mouseclicks etc to see what it your authentication details are, or for the sites with methods of defeating that have a trojan which makes the user without knowing it connect to the bank via a proxy you're running. When they get log in, you gain the same login tokens and can 'borrow' their session. Only by clicking logout would they stop you using the session, and even then you could direct them to a fake page. Should the banks use SSL, you simple have the SSL connection only going so far as your proxy and between the victim and your proxy either use no SSL or use SSL with your own certificate.

    At the moment unless the victim notices your trojan or their proxy settings (assuming they're not hidden) there's no way of knowing.

    The only way I think banks could avoid this at the moment is to shut the website access down, not what they want to do as it's a step backwards. Any sort of authentication tokens you propose using could be borrowed by the phisher without them needing to know it.

  17. Re:Some windows problems on Windows Incompatibilities Frustrate D.C. Schools · · Score: 1

    Installing Apache/MySQL/PHP under Windows has always been very straightforward for me and never a problem to configure.

    I don't use Apache on Windows for a production server and would never want to do so though, for that I run it on a Linux box. Far more secure when properly configured.

    The only time I've ever had problems is trying to rebuild from the sources to compile extra modules etc. (applies more to PHP than Apache), but then the main problems were a lack of open source build tools for Windows which aren't a pain in the arse to use or nonexistant and nothing to do with the code itself. (VC++ would solve that problem I think, but I don't really want to spent the money on it).

  18. Re:Boot CD. on Best Way to Port a Windows Game to Linux? · · Score: 1

    Indeed. I'd thought we'd got beyond the days of having to reboot... using a boot floppy disc with different autoexec.bat and config.sys files, just so That Game would run.

  19. Re:Does time travel as well on 6.8GHz 1TB RAM and 2TB HDD Laptop? · · Score: 1

    That would be the Deadline Extending Feature(tm), which is covered by a non disclosure agreement hence the lack of mention in the specification.

    Oops, I shouldn't have said that...
    *sounds of scuffle followed by dragging of body across floor*

  20. Re:Excellent. on Automated Pool System Saves Swimmer · · Score: 1

    Indeed. To clarify, the computer systems are relatively dumb, they cannot understand what everything in an image is.

    What they can do is spot shapes (eg human) in an image and compare two images to see if the shape has moved at all.

    The system will presumably take photos, spot the human shapes, take more photos and compare each human shape to check each one has moved slightly.

  21. Re:KISS on Automated Pool System Saves Swimmer · · Score: 2, Informative

    Good idea, but I think it might be more of a risk though.

    What if you tangled your foot in the netting? You might pull up and thus no longer be at the bottom of the pool setting the alarm off, but be stuck underwater and in a 12ft deep end no-one would be able to survive that sort of a manual rescue.

    Having such a system would also make the budget constrained councils probably stop employing lifeguards thinking the system would replace them. However they're still needed, for manual rescues, in case the system fails, for first aid such as if someone slips while walking alongside the pool and hits their head.

    There are too many pools already doing away with a lifeguard and instead relying on "parent supervision". An untrained parent whose attention is not guaranteed will never be as safe as a trained lifeguard.

  22. Re:But it did spark a tasty open letter on Scientist Says Most Scientific Papers Are Wrong · · Score: 1

    And why the old cold fusion experiments were not repeatable.

  23. Re:Call of Cthulhu ? on Nintendo Patents Insanity · · Score: 1

    Interesting.

    One of the chapters in Eternal Darkness: Sanity's Requiem (for the GameCube so I assume is the one the patent refers to) is called The Lurking Horror,

    Coincidence?

    It's a great game though, and the insanity effects are really cool. Particularly the ones that make you think there is something up with the GameCube, so the insanity leaves the realm of the game (as an example for those not familiar, error messages saying the controller is unplugged, BSODs, the flash of light when turning a TV off, a volume slider appearing and turning down, ....)

  24. Re:Give it a rest, OK? on WinFS Beta 1 Released Early · · Score: 1

    They probably wouldn't do this, to maintain backwards compatibility.

    In any case Samba cannot really be locked out. It connects to the Windows machine and pretends to be a Windows machine, so the other end can't tell it's Samba. Short of rewriting the entire SMB protocol or removing it from the OS (see above) they can't. Even if they did, it would simply be reverse engineered again.

  25. Re:Neither does the sun on College Libraries Without Books · · Score: 1

    Actually economics would stop that happened so abruptly that it'd cause power shortages.

    As the oil supplies decrease, the price would go up. It'd no longer be the cheapest option, so the electricity companies would start building new power plants that don't need oil. At some point the oil plants would just be turned off because the oil is too expensive, but this would be before we'd run out of oil entirely. We'd know we were running out several years before we actually did so there'd be enough time to build the new power plants. You can expect the electricity prices to skyrocket to pay for the more expensive oil and building the new plants though, but they'd probably drop back after a few years.