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User: hackertourist

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  1. Re:Original blog post on Build Your Own 135TB RAID6 Storage Pod For $7,384 · · Score: 1

    I'm just mentioning you can't take the random drive failure rates of one single drive and do straight multiplication to get to pod failure rates.

    ISTR that drives from one batch tend to fail in clusters, so when one goes it's time to assume the rest isn't far off. Does Backblaze have any data on this?

  2. Interesting idea on Wolfram Launches Computational Document Format · · Score: 1

    My initial thought was 'but what would CDF provide that a spreadsheet can't?"
    As it turns out the Wolfram website has some interesting examples. For example the user can drag a slider to change an input value and see the result in graphs, or use the same method to change a photo (using filters).
    I see some potential applications in my field (user manuals for complex machines).

  3. Re:Thunderbolt display on Apple Releases Mac OS X Lion, Updates Air · · Score: 1

    My misunderstanding: you talked about "two monitors" and I assumed that you meant laptop display + 1 external monitor.

  4. Re:Macbook no longer available on Apple Releases Mac OS X Lion, Updates Air · · Score: 1

    A USB adapter would only provide 100 Mbit Ethernet. GbE requires Thunderbolt.

  5. Re:Thunderbolt display on Apple Releases Mac OS X Lion, Updates Air · · Score: 1

    Huh? Companies that are too cheap to buy laptops that have a monitor port, aren't going to spend money on laptops that have Thunderbolt.

  6. Re:In other news... Physical Media and Thunderbolt on Apple Releases Mac OS X Lion, Updates Air · · Score: 1

    That's maybe an issue if you're driving a 2500x1600 display at 100 Hz. Apple has probably fixed the framerate of their Thunderbolt display at 60 Hz, so that's 7,68 Gbit/s for the display which leaves close to 2 Gbit/s for your file transfer. That's assuming the computer supports only one channel at 10 Gbit/s, but according to this page, the Thunderbolt interface has two channels at 10 Gbit/s each.

  7. Re:Shame about those on Leopard on Apple Releases Mac OS X Lion, Updates Air · · Score: 1

    borked the modal interface

    What do you mean by this?

  8. Apple needs to license Magsafe on Apple Releases Mac OS X Lion, Updates Air · · Score: 1

    Thunderbolt is an ideal port for creating a docking station (as the new Thunderbolt display shows). But a docking station needs to be able to power the Mac as well, so it needs a Magsafe connector, and Apple has been a stick-in-the-mud about licensing that. Come on Apple! Don't shoot yourself and your market in the foot on this!

  9. Thunderbolt KVM on Apple Releases Mac OS X Lion, Updates Air · · Score: 1

    Just in case a device manufacturer is reading /.:

    What we need is a KVM switch that can handle all these display standards. I can hardly find DVI KVM switches, let alone Mini Displayport or Thunderbolt.

  10. Thunderbolt display on Apple Releases Mac OS X Lion, Updates Air · · Score: 1

    and here's another display that looks fabulous, but will only work with the latest Macs (unless someone comes up with a DVI/DisplayPort to Thunderbolt converter so we can at least use the display).
    I should be used to Apple going whole hog for new standards every couple of years, but it's still annoying.

  11. Macbook no longer available on Apple Releases Mac OS X Lion, Updates Air · · Score: 1

    This means the least expensive Macbook is the Air, which comes with SSD only, the $999 model has 64 Gb of storage. And you need a Thunderbolt adapter to connect Ethernet and monitor.
    If you want more expandability (space for a HDD, DVD drive that can be replaced by a second HDD or SSD, ports) you need the Macbook Pro for $1199 or more.

    While Thunderbolt is a nice addition, needing an adapter to do anything is not in favor of the Air. It sucks that the price for a Macbook with specs I can live with has just gone up by $200.

  12. Re:Simple vs Short. Round one: Fight! on The Science of Password Selection · · Score: 1

    I tend to type passwords much more carefully than anything else. Rather than relying on my blind typing, I revert to hunt and peck, to make sure there are no mistakes since there is no feedback.

  13. Re:the intellectual side of WWII on Queen Elizabeth Sets a Code-Breaking Challenge · · Score: 1

    Unlikely. The original Apple logo was an elaborate drawing of Newton sitting under an apple tree. That evolved into just the apple symbol (white, then rainbow-colored, then white again).

  14. Re:What? on Firefox Is Going 64-Bit: What You Need To Know · · Score: 1

    Even then: there's a release already out that has the exact issues that TFA is asking feedback about.

  15. What? on Firefox Is Going 64-Bit: What You Need To Know · · Score: 1

    The OS X version is 64 bit already. At least, I can choose whether to launch it in 32- or 64-bit mode.

  16. Re:Looks like the old telegraph maps on Undersea Cable Map Shows Where The Data Pipes Are · · Score: 1

    Cable landing points are usually chosen in quiet areas: no shipping means less chance of some doofus dragging his anchor through the cable and causing the nautical equivalent to backhoe fade.

  17. Re:noticable difference between areas on Undersea Cable Map Shows Where The Data Pipes Are · · Score: 1

    It's also cheaper: most of the cost in the undersea cable will be paid for by companies outside the country (since the landing is only a small part of the cable).
    And it's more reliable. Stringing a cable overhead through jungle/desert/what have you isn't exactly foolproof. Burying the cable is a huge infrastructure project, way too expensive for those countries.

  18. Re:I haven't read it in years and years... on Undersea Cable Map Shows Where The Data Pipes Are · · Score: 1

    Calling it an article is quite the understatement. I've seen novels that are shorter. Still well worth the read though.

  19. Interesting idea, but... on Novel Drive Wheel System Based On Spinning Sphere · · Score: 1

    1. Why keep the motor running at constant rpm? Sure, those peelouts are fun but they cause tire wear and won't work too well on loose surfaces. And in the video, the wheel bounces off the ground when going from forward to reverse. That depends on the power-to-weight ratio and won't be so much of a problem in production vehicles, though.

    2. The video doesn't show how the system behaves at low speeds (ie with the wheel at an angle approaching 90 degrees). I suspect that at those angles, the direction of the drive force will start varying because even small imperfections in the floor will change the position where the wheel makes contact with the floor, so your course becomes erratic.

  20. Re:Making predictions can be misleading on Could PSTN Go Away By 2018? · · Score: 1

    Do you know who connects those cell towers? Those towers don't talk to each other wirelessly, they use terrestrial copper/fiber. If you sunset the network that keeps the copper/fiber infrastructure in reasonably good shape, the economics of maintaining the cellular network change, driving up costs significantly.

    Cellular traffic already is a significant fraction of total PSTN traffic, and provides much higher revenues per connection-minute than the PSTN, so I doubt that the cost increase is as significant as you think.

  21. Re:In some ways it's a better representation of ti on Digital Generation Rediscovers Analog Wristwatches · · Score: 1

    It's just a matter of what you're used to.
    All of the watches I've owned are digital, and as a consequence, I think of time in digital terms. When I see an analogue clock it takes me noticeable effort to convert the angles of the hands into hours:minutes.
    Calculating a time difference for me is a matter of adding and subtracting modulo 60, not visualizing hand positions.

  22. More information on the CCD array on Construction of ESA Galaxy Mapping Satellite Completed · · Score: 1
  23. Can it be closed? on Pdf.js Reaches First Milestone · · Score: 2

    I currently have PDFs set to be downloaded and opened in an external application, because PDF rendering in a browser tab (using Adobe's PDF plugin) fucks up important shortcuts: Cmd-W no longer closes the tab but throws up an annoying dialog. That alone would be reason enough to switch.

  24. Space is too big for one nation on Can the US Still Lead In Space Despite Shuttle's End? · · Score: 1

    The 'next big thing', manned missions to Mars and beyond, is going to be so expensive no single nation can afford to do it. International cooperation is IMO the only way forward. The ISS was a decent first effort in that direction, but also shows the problems that will crop up in such a cooperation. The weird orbit dictated by the requirement that it can be reached from both Canaveral and Baikonur, different docking systems being used, etc.
    Nations will have to put the cooperative effort above petty nationalism if these missions are going to succeed.
    Even then, we're stuck to our local neighborhood unless there's a quantum leap in space technology.

  25. Search improvement on Google's New Design · · Score: 1

    sometimes, the fuzziness in Google's interpretation of your search terms means that it's difficult to find what you want. E.g. I recently needed to find a combination like A[0-9A-Z]123. As far as I know, this is impossible with Google. Also punctuation is sometimes a vital part of the search term, but gets ignored by Google.

    Is there a search engine that allows for this type of exact searches? One that uses grep syntax would be ideal.