Slashdot Mirror


User: viking80

viking80's activity in the archive.

Stories
0
Comments
456
First seen
Last seen
Profile
(view on slashdot.org)

Comments · 456

  1. Doomsayers should and was taken seriously. on LHC Success! · · Score: 1

    When you do an experiment that creates black holes, it is prudent to do a risk analysis. That very high energy cosmic rays hits earth and we are still ok is not a sufficient analysis of the problem. That ern did de diligence and did a lot of risk analysis on exactly this as well as other failure modes was the only prudent choice.

    To brush away any critics as doomsayers is on the same level as the most irrational of the doomsayers.

  2. Re:It is recoverable, but at a price. on The Great Zero Challenge Remains Unaccepted · · Score: 1

    Where did you pull out that comment? We actually did recovery on magnetic tape, so that is where 90% comes from.

  3. Says me on The Great Zero Challenge Remains Unaccepted · · Score: 1

    Did you bother to read GP? We recovered data from magnetic storage. An no, not government nor universities.

  4. It is recoverable, but at a price. on The Great Zero Challenge Remains Unaccepted · · Score: 4, Informative

    It is likely that there is a hysteresis in the platter causing a "0" written on top of a "1" to be slightly "weaker" than a "0" written on top of a "0".

    On old tape, this hysteresis was about 10%, and was actually visible with a magnetic loupe, so depending on s/n ratio, you could recover quite a bit, no pun intended.

    The problem with a HDD is that the signal from the heads go through a lot of signal processing including Extended PRML or EPRML. There is also an algorithm like RZ to not have a long series of the same bit written physically. If you take the electrical output from the read head, you will have a big task reconstructing the data, even if there only good data.

    The only places today that can analyze well what is read physically is at HDD manufacturers research lab, and probably using custom HW to read the platter that collects all the errors and offsets. For a recovery company to do this, they probably would have to invest millions of $$$, so they will not.

    So bottom line is that you could send the drive in to Western Digital, and they could probably recover the raw data with about 90% accuracy. If that is enough for the error recovery to chew on, I am not sure, but here and there, long strings would be recovered. They can for sure give the exact probability for the recovery of a bit.

    WD however does not have any incentives to demonstrate that wiping their drives with "0" is not sufficient. aux contrare, they may consider this an undesirable property. Therefore, the only ones that can recover this is unwilling.

    So the challenge remains unaccepted.

  5. Quite the opposite on Hans Reiser Gets Sentence of 15-To-Life · · Score: 1

    No need to offend or feel offended. My experience anyway is quite the opposite. The owner/manager's attitude and is invariably mirrored in the organization underneath him. Often for better, sometimes for worse. Even if it is not intended.

    I was actually hoping for someone with real insight would reply.

  6. Namesys' customer service was 'painless' on Hans Reiser Gets Sentence of 15-To-Life · · Score: 5, Insightful

    I wonder what kind of service Namesys gave to any of its customers and users. Reiser was arrogant and annoying, and that is toward the people with the power to send you to jail forever.

    His attonery also says "Hans killed Nina for making a 'cavalier' remark", but he killed her painlessly.

    Are anyone that reported defects in the Reiser FS still alive?

    Was the level of customer service that you would be killed painlessly as opposed to really bad customer service where customers are tortured before they succumb?

  7. Add microsoft windows to products damaged by DRM on Chronicling the Failures of DRM · · Score: 2, Interesting

    Most problems with MS windows are amplified by DRM. I have had system crashes at multiple occasions, and when trying to reinstall XP on a new HDD I run into issues like this:

    - The version of XP you have is upgrade only, and can not be used on a clean HDD.

    When trying to recover by installing from CD:
    - The version of XP you are trying to install is older than what is on the PC (upgraded with service packs). This is for upgrade only.

    I also have a test machine with multiple languages and test with different HW configurations. After using it for a few years, now, every time XP is reinstalled, I have to call MS to get the license key.

    I agree with TFA: DRM'ed products will fail.

    What a breeze to install Ubuntu.

  8. Microfilm etched on silicone geologically stable on Digital Storage To Survive a 25-Year Dirt Nap? · · Score: 1

    Store in these 3 formats:
    1. Microfilm etched on silicone (B/W only) with binary copy etches as well That should have geological stability. >1My (million years) Recovery: microscope
    2. Add a CD glass master and/or a commercial copy. This is much more stable than burnt dye CD >0.1My Recovery: CD player
    3. Print on acid free paper with archive quality ink. >0.0001My Recovery: Human eye

    Option 1 is not as expensive as it sound. You can probably get material for free or for a few $$. Etching you can do yourself in a photo lab, or if you want finer detail, use a commercial stepper a few generations old (i.e. 200nm feature size)

  9. Re:Asbestos would have saved the buildings on NIST Releases Report On WTC 7 Collapse · · Score: 1

    It only causes cancer if you breath it into your lungs. Mesotheliomas is found in people working in asbestor mines and production facilites. Exposure from use in buildings has basically zero health effects except saving your life in case of a fire.

    From wikipedia:
    Asbestos exposure becomes a health concern when high concentrations of asbestos fibers are inhaled over a long time period. People who become ill from asbestos are almost always those who are exposed on a day-to-day basis in a job where they work directly with the material

  10. Asbestos would have saved the buildings on NIST Releases Report On WTC 7 Collapse · · Score: 1

    New building code forbade use of asbestos. If asbestos had been used to protect the steel from heat damage during a fire, the buildings would not have come down.

  11. And slashdot uses doubleclick & google-analyti on Google Using DoubleClick Tracking Cookies · · Score: 4, Informative

    And slashdot uses doubleclick & google-analytics as well.

    Try disabling scripts with firefox "noScript". I think /. is more readable without allowing doubleclick.net & google-analytics.com

  12. The GrayWulf cluster from Microsoft on Tracking Near-Earth Meteors With a 1.1 Petabyte Database · · Score: 1

    From TFA:
    A new feature allowing big distributed databases with MS Server 2008. This setup is called a GrayWulf cluster.

    I wonder if this was the idea of the new PR company MS hired after the marketing failure of Vista?

  13. Seem R&D did not need MIT. It's on sale now! on $12 MIT Computer Based On NES, Not Apple II · · Score: 3, Informative

    Not sure why MIT needs to get involved in anything here. This $12.50 computer is currently produced, and sold on the street in India *now*. So R&D, manufacturing, distribution and marketing is done and working.

    Computer includes word processor, games, a gun for gaming, as well as BASIC.

  14. Getting weaned off welfare is hard on Navajo Nation Losing Internet Access · · Score: 1, Interesting

    They complain they have to drive up to 60 miles to Page, AZ to get internet access.

    It should be trivial to set up a 60 mile WiFi link for pennies compared to satellite internet.
    Also, laying down fiber is cheap. A lot of long valleys with a few hundred residents have fiber laid. A little innovation and community effort here can solve this for the better.

    Maybe getting weened of the satellite access paid for by your internet tax may actually do them some good.

  15. Dont get your hopes up; D.C. loves RIAA on RIAA Gets Nervous, Brings In Big Gun · · Score: 3, Interesting

    The republican party is prioritizing business interests over consumers any time the have a chance.
    And the democrats are all cozy and in bed with the Hollywood elite.

    Expect RIAA, Viacom, Hollywood and all other companiers with IP content to consistently get everything they want from Wahington. As a consumer, dont even try to get your hopes up. You will continue to get screwed.

    Just as a reminder: After entertainment became a big business with lobbyists around 1920, *no* new copyrighted work have expired. Every 10 years or so, it has been extended by at least 10 years, and is now about two lifetimes.

  16. HELP How can I make my laptop fail? on Laptops With Certain NVidia Chips Failing · · Score: 1

    I have one of these chips in my laptop, and I would rather like it to fail now when the laptop is under warranty rather than later.

    Can anyone come with a good solution?

    I would like it not to be obvious abuse.

    Exactly what kind of activity exercises/heats this chip a lot?

  17. Simple is often best on Software, Tools, Or Techniques For UI Review? · · Score: 4, Informative

    1. Define what the software should do
    2. Make the UI, even a mockup will do
    3. Invite users to test drive the UI while video taping
    (See (1) and ask the user to do each one(with no help))
    4. Measure the users success (clicks, wrong clicks etc)
    5. Score each screen with the predefined metric from (1) filled inn in (4)

    Done.

    Often the real problem is that nobody really knows (1): what the software should do. Marketing thinks it is "one click purchase" and engineering thinks it is "fully configurable shopping view". So agree on 1 first, and maybe your problems go away.

  18. Re:Cinas "Golden shield" now copied in USA and Swe on FCC Commissioner Urges, Don't Regulate the Internet · · Score: 0, Offtopic

    What do yo mean by "illegal"?
    I believe "illegal" is a term used in criminal law, and referring to things like illegal drugs.

    Or are you referring to work under copyright or products that are not "Genuine" as in Microsoft "Genuine" products?

  19. Cinas "Golden shield" now copied in USA and Sweden on FCC Commissioner Urges, Don't Regulate the Internet · · Score: 5, Insightful

    It looks like USA and Sweden is copying Chinas "Golden shield" to protect its citizens. Sweden with the new FRA law, and US censoring Usenet.

    I really hope we can stop this before the politicians try to "protect" me too.

    Most muslim states are of course already "protecting" its citizens heavily.

  20. The mob running the country on Olympic Media Village – Most Expensive Internet In the World? · · Score: 5, Interesting

    Imagine New York when the mob was running a lot of it. Now imagine the mob winning the battles with the police, and taking over not only the whole city, but the entire USA.

    That's what China is and feels like.

    So be careful, and give them whatever they want.

  21. Engine geometry and air pressure on Cambridge N-Prize Team To Build Balloon-Assisted Rockets · · Score: 4, Interesting

    You are correct in your energy estimates, but a high altitude balloon launch has other significant advantages:
    1. Your rocket engine can be an engine with vacuum geometry meant to work well in space. This differs from an engine meant to operate at low altitude.
    2. Your rocket design does not need to include complicated supersonic flight in dense air, so your vehicle can be more optimized for the mission at hand rather than aerodynamic.

  22. Both republican & democrats are against the pe on PRO-IP and PIRATE Acts Fused Into New Bill · · Score: 4, Interesting

    The republican party is prioritizing business interests over consumers any time the have a chance.
    And the democrats are all cozy and in bed with the Hollywood elite.

    Expect RIAA, Viacom, Hollywood and all other companiers with IP content to consistently get everything they want from Wahington. As a consumer, dont even try to get your hopes up. You will continue to get screwed.

    Just as a reminder: After entertainment became a big business with lobbyists around 1920, *no* new copyrighted work have expired. Every 10 years or so, it has been extended by at least 10 years, and is now about two lifetimes.

  23. Screen material on Consumer 3D Television Moving Forward · · Score: 1

    Used Costco's DuPont interior latex. Polarization is maintained fine. Use "eggshell" rather than "flat" to get brighter screen. More shiny paint does not give a flat image.

    Instead of a gray screen, use a high quality white paint. Remember you are taking away half the light in the polarizing filters.

  24. Use circular polarizing filters on Consumer 3D Television Moving Forward · · Score: 1

    You should use circular polarizes. One with left and one with right polarization. This way they will work independently of angle. If you use linear polarizes you will also get a funny effect when you twist your head while you watch.

  25. Simple, cheap and high quality 3D home theater on Consumer 3D Television Moving Forward · · Score: 2, Interesting

    You need:
    1. A PC with support for two monitors (most)
    2. Two projectors
    3. Polarizing filters for the projectors (standard from photography store)
    4. Polaroid sunglasses (lightweight and cheap)

    I suggest circular right and left polarizes. Now set the two projectors next to each other, and superimpose the two images, put on glasses, and voila, you have a great 3D movie theater.

    It it great that video standards are emerging, but it you can also DIY.

    Still:You could use two cameras, but one camera in "rapid shoot" from a moving vehicle works beautifully; just take two sequential pictures on the two monitors.
    Video: More of a hassle, but basically shoot the scenes with two cameras separated like your eyes, and play them. You will have to use special effect to merge the two videos together to get one that spans both monitors, or use video editing tools to synchronize two separate video signals.

    Have fun

    The new video 3D video standards will help making this easier.