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User: neodymium

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Comments · 75

  1. Re:What about the copies? on Has Anyone Seen the Moon Pictures? · · Score: 1

    All the copies available from tv stations are of inferior quality. The original magnetic tapes were in some obscure format, with much higher contrast and resolution, compared to tv tapes. In fact, all the material had first to be converted for tv broadcast, and NASA engineers admitted that they lost lots of quality due to improper brightness settings and so on.

  2. Re:BBS Days... on 7 hour BBS Documentary Nearly Ready · · Score: 1

    if you mean runtime error 200, this can be fixed. your computer is just too fast for some borland pascal crt unit's delay calibration routine. inofficial patches are available at http://www.brain.uni-freiburg.de/~klaus/pascal/run err200/download.html#TpPatch, tppatch.zip.

  3. Re:Already in place. on New Technique Could Trace Documents By Printer · · Score: 1

    There is only one situation for color printers to print an identification barcode, namely if someone tries to counterfeit money. Most color printers do this, usually in a very pale yellow which cannot be seen with bare eyes, but easily recognized using UV light.

  4. Myths and reality about hydrogen cars on BMW Shows Off World's Fastest Hydrogen Car · · Score: 1

    Just to clean up some myths about hydrogen powered cars:

    Myth: In an accident, the whole car will blow up in a giant fire ball.
    Reality: Hydrogen is a highly mobile gas molecule. It is also much lighter than air. This leads to very quick dissipation, and normally, the lower combustion limit, which is 4.0 volume percent in air, is never reached.

    Myth: Fuel cell powered cars are always more efficient than ICE (internal combustion engine) cars.
    Reality: Not always true. Fuel cell powered cars lose efficiency, if temperature gets higher, due to the entropy of the hydrogen oxidation. OTOH, ICE engines are limited by carnot cycle efficency. The higher the operating temperature, the higher the efficency. Cross over (the temperature, where combustion is more efficient than fuel cell) is at approx. 900 degC and 70 percent theoretical efficiency.

  5. Re:German c't magazine showed how to disable USB.. on iPod: Your Portable Corporate Hellraiser · · Score: 1

    With NT or W2k domain security, it certainly does.

  6. Technologies.. on Microsoft Offers A Peek At New Search Engine · · Score: 0, Flamebait

    Their site seems to rely on javascript and ASPX heavily. I seriously doubt that these technologies will help creating a larger market share...

  7. Re:fix? on Fingerprint Scanners Still Easy to Fool · · Score: 1

    Did you read the thesis at all ? In there, it is explicitly stated that epidermic temperatures at extremities like hands are between 26C and 30C. Thin silicone oder gelatine layers lower the temperature by max. 2C, so it is well in the accepted range.

  8. Re:Nice on Water-Cooled Half-Life 2 Case Mod · · Score: 3, Funny

    Unfortunately, his machine would be outdated then...

  9. Re:Speed on Using a 747 to Fight Wildfires · · Score: 4, Informative

    a 747 in full flap configuration can be slowed down to 210kt (approx. 340km/h) IAS fully loaded, and close to 140kt (approx. 220km/h) IAS empty. the maneuverability is a little bit limited, i.e. bank angles over 25 are forbidden. no steep turns are possible, so it takes over 1 minute to do a 180 turn.

  10. Re:How Slow on Using a 747 to Fight Wildfires · · Score: 1

    >What effect does this kind of dump do to the
    >aerodynamics?

    If you keep the center of gravity in the middle, the impact on aerodynamics is not so bad. But with lots of liquid on board, this can be quite difficult, as the liquid moves during flight. So either have lots of small cells containing the liquid, or make sure that all maneuvers are well coordinated. NO straight climb up then.

  11. Re:More Info? on Factory Testing of Airborne Laser Cannon Completed · · Score: 1

    Basically, you don't want to use aggressive chemicals as fluorine or hydrogen peroxide in some large aluminum tubes (aka aircraft). Al is pretty stable in oxygen, due to a thin oxide layer on top. Fluorine destroys Al in a matter of seconds.

  12. Re:Mirrors? on Factory Testing of Airborne Laser Cannon Completed · · Score: 1

    I guess, because the beam is not focused there ?

  13. Re:Mirrors? on Factory Testing of Airborne Laser Cannon Completed · · Score: 4, Informative

    This depends on the reflectivity of the mirror. If it would be 99.999%, only some 10W would get absorbed by the missile. Un(?)fortunately, it is not possible to make mirrors with such a good reflectivity across all possible wavelengh. Especially in the IR range, it's quite difficult to make mirrors with >98% reflectivity. And I suppose the laser will be in the IR range.

  14. Re:New MMO? on Army Discusses MMO Troop Training Sim · · Score: 4, Funny

    Probably at the closest army recruiting office ?

  15. Re:April 7th, 1969 on Happy 35th birthday, RFC 1! · · Score: 2, Interesting

    isn't that why some older OS treat time() as signed int ?

  16. Re:Instructions for 2.4 to 2.6 upgrades for Luddit on Linux 2.6.5 is Released · · Score: 1

    Thats why I didn't give the whole sources.list line. Even though it may work, choosing only some packages is way more effective and also beneficial to system stability...

  17. Re:Instructions for 2.4 to 2.6 upgrades for Luddit on Linux 2.6.5 is Released · · Score: 2, Informative

    With debian and apt-get, thats easy. Just choose from one of the many sites offering testing or unstable backports for the stable distribution (I recommend www.backports.org), add their site to /etc/apt/sources.list, do apt-get update && apt-get dist-upgrade, and you are finished...

  18. Re:Does this include on Wearable Technology Fashion Show · · Score: 1

    Yep, it does... Citation, pic 15: "The JoyDress is integrated with flexible vibrapads that vibrate by programmed impulses from a thin, user-controlled command pad connected by tiny wires. It enhances the feeling of body consciousness with pleasant sensations that energize feelings, stimulate blood circulation, and give you a gentle massage."

  19. Re:FreeBSD is a solid OS on FreeBSD Based Live CDs · · Score: 3, Interesting

    Normally, one logs to a remote syslog host...

  20. Re:FreeBSD is a solid OS on FreeBSD Based Live CDs · · Score: 4, Interesting

    Especially for Firewalls, it is a good idea to use (modified) live-CDs. This way, everything is stored on a read-only filesystem, even in the rare case of a BSD remote root exploit, a reboot fixes everything.

  21. Re:What they found. on NASA Mars Press Briefing & "Significant Findings" · · Score: 1

    In one paragraph they cite NASA scientists saying that these sulfates were "definitely" formed in standing water. In another paragraph, the newsmag says they might have been formed there. Whatever, it sounds pretty definite.

  22. What they found. on NASA Mars Press Briefing & "Significant Findings" · · Score: 5, Informative

    German newsmag "Der Spiegel" has the story: They found a certain kind of iron sulfate compound, which forms only in bodys of standing water. Discoveries were made using the MIMOS-II Moessbauer spectrometer and the APXS x-ray spectrometer. Images are available in the article.

  23. Re: EVA on Hubble Snaps Farthest / Oldest Galaxy · · Score: 5, Interesting

    Don't the astronauts have to do EVA anyway while doing the Hubble service ? I mean, they should be able to spare 10mins for checking the shuttle... No reason for a second EVA.

  24. Re:Latest and greatest not for everyone on Talking With 2.0 Kernel Maintainer David Weinehall · · Score: 1

    >You can strip it all the way down to a CLI if you want.
    IIRC, its called DOS6.22 then...

  25. Re:for those in the dark on IETF Approves XMPP Core as Proposed Standard · · Score: 1

    The IETF is the Internet Engineering Task force, http//www.ietf.org.

    IESG is the Internet Engineering Steering Group, http://www.ietf.org/iesg.html