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User: JKR

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Comments · 243

  1. Re:Solar + Ocean Water = fuel on Getting Serious About Fuel Cells · · Score: 1
    You're missing the fact that if you electrolyse salt water, you mostly get hydrogen and chlorine, not hydrogen and oxygen. The oxygen stays behind with the sodium to leave you with sodium hydroxide (and small amounts of hypochlorite).

    Jon.

  2. Re:How about PGP encrypted mail? on Deleting E-mail Could Get You In Trouble · · Score: 2, Informative
    In the UK at least the R.I.P. (Regulation of Investigatory Powers) bill makes failure to produce decryption keys a criminal offence.

    Jon.

  3. Re:What makes you think it isn't a Microsoft thing on CERT Warns Of Multiple Vulnerabilities In Libpng · · Score: 1
    What makes you think it isn't a Microsoft thing?

    Well, maybe the fact that MS didn't write libpng? D'uh.

  4. Re:Figures on Intel Begins Shipping 64-bit Prescotts · · Score: 1
    The last great chipset Intel made was the BX.

    Hell no, the E7205 was pretty good; rock solid stable and very overclockable (mine is running a HT 3GHz chip with 1GB RAM at 800MHz perfectly). It's a shame that they were eclipsed so quickly by the 875 et al

    Jon.

  5. Re:Anti-Piracy Schemes on Doom 3 Gets Reviews, Piracy Questions, Exultation · · Score: 0
    Not buying it, then, if that's true. I use CloneCD to make un-fucked-up copies of audio disks that use Cactus et al, so I can play them in my car CD player. I'm not uninstalling it for some shitty "anti-piracy" system which actually disadvantages the sucker that PAID for the game.

    Jon

  6. Re:Windows+X on How Microsoft Could Embrace Linux · · Score: 1
    In the meantime the Cygwin X server works well for me. It has normal (entire x desktop in one huge window) and root (X and Win32 windows mixed) modes, with a special window manager for the latter. There's an experimental GLX accelerated build as well.

    Jon.

  7. Re:Not fairies, just hard-to-make sounds on Tubes vs Transistors: An Audible Difference? · · Score: 1
    the parent poster was trying to say that tube amps were better because they made his guitar sound better

    Actually I was just responded to someone who didn't seem to understand why anyone would want to use DSP to emulate tubes. Most guitarists would agree that:

    1. Preamp distortion is nice but not the whole story; you need to drive the power stage hard too.

    2. The actual "amplification" bit is really a pain, and has spawned many workaround like dummy loads and speaker cab emulators. Life would be much easier if one could parcel up the sound of a 100W stack in a box.

    Personally I think the problem is one of scale; if you want the sound of 4 x 12" speakers driven to the point of breakup, you just have to shovel that much air. It's not helped by the inherent non-linearity of the human ear & perception.

    Now if you're talking pro sound reproduction, I'd go with solid state simply for ease of use. It's just SIMPLER to design a good solid state power amplifier, right up to the point where you need silly powers (MW) at silly frequencies (MHz). Then the valve is still attractive, whereas a lot of the advantages of solid state design start to look less good - both designs are going to need water cooling systems, and designing an unconditionally stable negative feedback amplifier gets hard when your power devices start to run out of gain whereas valve designs tend not to rely on negative feedback so much.

    Jon.

  8. Re:Not fairies, just hard-to-make sounds on Tubes vs Transistors: An Audible Difference? · · Score: 2, Interesting
    Not a guitar player, are you? A guitar amp that amplifies "evenly and without clipping or distortion" is exactly what we DON'T want.

    The reason why valve amps are still popular and DSP hasn't completely replaced them is because an overdriven valve amp colours EVERY aspect of the sound, from additional harmonic content through dynamic response to filtering. The transfer function is extremely complex. I believe that the modelling amps & preamps (like Line 6 POD-type devices) involve convolving the input with the measured impulse responses of the real thing, under controlled conditions. This is necessarily limited to the precision of the DSP and the original measurements. Don't forget that there's all sorts of bizarre coupling going on in a valve amp; even new valves can be microphonic, and if the head is sat on a 4x12" cabinet then the vibrations are going to couple back to the pre and power valves. Then you have the coupling transformer and the power supply (often also using a valve rectifier, which makes its own contribution).

    Finally you have nutters like Vai, who on "Skyscraper" with Dave Lee Roth apparently drove (and destroyed) 50W speakers from a 100W head for the additional tonal qualities resulting from speaker cone break-up & mechanical clipping.

    Hell no, we don't want a CLEAN amp.

    Jon.

  9. Re:An important difference on Linux vs. Windows: What's The Difference? · · Score: 5, Interesting

    Here's your loop; run along now.

    for /L %I in (1,1,10) do @echo %I

    Jon.

  10. Re:Download the Service pack before install on How To Avoid Viruses At Windows Install Time? · · Score: 1
    So you have no internet connected friends, no white-collar job, and no net cafe?

    Fine, WRITE to MS and ask them to send it to you on a CDROM, for the princely sum of about $3.00 shipping.

    Jon.

  11. Re:Like Unreal Tourney on Theora I Bistream Format Frozen · · Score: 1
    Er, no. They'll follow suit because MP3 costs $$$ to license in commercial applications, and OGG is free beer. They could care less about the tiny performance differences.

    Jon.

  12. Re:Hmm on Water-Cooled Half-Life 2 Case Mod · · Score: 1

    It looks like a solution of fluorescein, which is an organic fluorescent dye. It's used as an injection in angiography to allow small blood vessels in the eye to be examined, and in anti-freeze so that leaks can be found more easily.

    Jon.

  13. Re:Solar power is going to be big on New Material for More Efficient Solar Cells · · Score: 1

    Actually, IIRC the BMW prototype hydrogen car on display in the BMW museum in Munich used a pretty much stock 3 litre V6 with some carburettor mods.

    Jon.

  14. Re:where's the 8 lbs of lead?? on Intel To Make A Greener Microprocessor · · Score: 4, Informative
    In the monitor glass; the alternative is not having children ;-)


    Seriously, look at the bigger monitor tubes (especially in the EU); they have a radio-dosage sticker certifying the level of beta radiation emitted, usually at the preset acceleration voltage.


    Jon.

  15. Re:Perfect Example - ImageMagick on The Command Line - Best Newbie Interface? · · Score: 2, Informative
    OK. Open Adobe ImageReady and create a history script of the actions that you want to perform, using a sample image. Note that because it's a GUI application you have immediate visual feedback, and will thus get it right. Now export that script as what Adobe call a "Droplet", setting default options for output file naming, directories etc. Now, using your file explorer, drag and drop the files you want to convert onto the droplet.

    Your point, caller?

    Jon.

  16. Re:Good for all sortsa reasons on Windows XP SP2 Could Break Some Applications · · Score: 1
    Provided we teach them that recompiling applications in Linux is a fairly easy task, or better yet, make recompiling applications in Linux even easier


    What? EVEN easier? How is recompiling things "easy" in Linux? Most end users don't have a clue what to do with a compiler for EITHER architecture; expecting granny to rebuild & relink her apps is not going to happen. Hell, I'm a professional software developer with 10+ years experience of both Linux and Windows, and I just wasted a weekend trying to rebuild Kerberos on Linux because of symbol versioning problems. This is EASY?

    From a developer point of view, the hard work in this sort of change is TESTING, not COMPILING. And precious little of that gets done by developers on EITHER side of the FOSS fence.

    Jon.

  17. Re:What we really need on HDTV On Your PC - ATi's HDTV Wonder · · Score: 2, Informative
    A studio quality uncompressed HDTV stream (at least as per BBC R&D Kingswood Warren 10 years ago) was about 1.2 Gbit/s (I believe that's 1250 line 50 Hz interlaced). We used to fit two of them into an STM-16 over fibre for the studio optical routing project I was fortunate enough to work on, back in 1993. MPEG-2 was still being worked on back then, but wouldn't have been used for studio quality signalling anyway.

    So, probably more like 150 MB/s (less for the US / Japan since they use 1080 lines). Now, MPEG-2 might get you 10-fold compression or better, but that requires a hardware codec.

    Jon.

  18. Re:Not So Fast Junior... on Munich Struggling with Linux Transition? · · Score: 1
    You have GOT to be kidding; on my Windows Domains, it is ABSOLUTELY trivial to install printers & network print queues and push them to client desktops; it's this little thing called a "directory service" see; now while I'm sure Active Directory isn't the greatest directory service ever written, it's lightyears ahead of anything on Linux in terms of integration, ease of use, and functionality.

    Sure, you can roll your own (probably superior) solution from the standard OpenLDAP, Kerberos etc. packages (unless you run Debian, in which case you'll also end up compiling your own support libraries to get usable version). However, AD is there, it works, it offers a migration path from NT domains, and it provides a huge degree of control over the client machines.

    Jon.

  19. Re:Other Microsoft Drivel in XP on MS May Be Forced To Sell Stripped-Down OS In EU · · Score: 1
    Add or Remove Programs -> Add/Remove Windows Components. Stop whining.

    Jon.

  20. Re:With respect to dot matrix printers... on Ten Technologies That Refuse to Die · · Score: 1
    Exactly that point was made in the article, you karma whore!

    Jon.

  21. Re:I suspect the viruses aren't the worst on What's The Actual Cost of A Virus? · · Score: 1
    Lock the machines down. Use a filtering proxy server for HTTP. Don't let users install stuff or change system settings. Set up a separate class of domain users & machine security groups for public access machines, or firewall them off completely. Disable Javascript as a system policy and DON'T LET THE BUGGERS CHANGE IT BACK. This is all stuff that the domain administrator can set as policy for groups of machines running NT4 or later.

    Alternatively, a locked down linux install might be good enough for casual public use (but watch out for people with their entire thesis in a single bastard-sized Word document complete with 200 high resolution images who WILL make your life hell when OpenOffice can't import it exactly the way they want.)

    Even better, just ghost the install over the network every night; reformat & reinstall automatically.

    Jon.

  22. Re:Slightly more sarcastical view on Mine The Moon For Helium-3 · · Score: 1
    Of course, these estimates depend on which scientists are making the estimates--the ones who predicted we'd all be living in a utopia of perfectly fitting unitards or the ones who've crashed two space shuttles in 17 years

    I think you might find those scientists were managers...

    Jon.

  23. Re:turned off on BSD For Linux Users · · Score: 1
    You seem to have confused BSD and Interix.

    Jon

  24. Re:Bad ideas and good ideas on Adopt a Lost Technology Today For R.O.S. · · Score: 1
    But that IS where the per-user registry settings are kept, in a binary hive in the user's profile directory. The only difference is, it's not a plain text file. Instead, you can load the hive using the registry editor, separate from the currently loaded registry settings.

    Jon.

  25. The BIG news here... on Windows Services For Unix Now Free Of Charge · · Score: 2, Informative
    isn't the rather poor shell utilities, it's the extensions to the Active Directory schema that allow you to authenticate users on Linux against a Windows 2000 DC using OpenLDAP and PAM. It works very well to give a single sign-on setup in a hetereogenous environment.

    It's marketed as a means of migrating NIS users to AD, but it works even better for LDAP, with suitable libnss_ldap.conf and pam_ldap.conf files. The only previous solution was AD4UNIX which no longer seems to be maintained, and is flaky on later service packs. For us, having this for free is good news.

    Jon