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User: dotancohen

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  1. Re:recipie for disaster on Nissan Develops Emergency Auto-Steering System · · Score: 2

    Seat belts are awesome when there are roll cages installed in the vehicle.... how many Corollas and Honda civics do you see out there with roll cages installed?

    All of them. Anything built for the European market has to have pretty good rollover protection, rather better than the protection afforded by a couple of lengths of scrap scaff pole welded in by Crazy Pete at the tyre-fitting centre.

    This topic needs elucidation. The chassis modification usually referred to as a roll cage is _not_ designed to provide rollover protection, at least not the way they've been made in the past few decades. The modifications are designed to stiffen the chassis to provide better high-torque-from-0 traction, prevent flex which could crack windshields, and provide supplemental side-, front-, and rear- impact protection.

    You are right, Crazy Pete does not have computer simulations or real empirical data about the roll dynamics of the particular model car he is welding in. However, supplementary impact protection is a no-brainer, so long as Pete understands other safety mechanisms in the vehicle, for instance by not welding in a door bar that would actually puncture the occupant in a side-impact collision, or prevent the stock side-impact airbag from deploying properly.

    I assume that the modifications are termed roll cages due to the historical fact that pre-1970s vehicles offered almost no roll protection, so _any_ cage no matter how ill-designed was better than nothing.

  2. Re:Dear /S/cientists on Alpha Centauri Has an Earth-Sized Planet · · Score: 2

    What are the prospects for a single orbiting planet (let's exclude other objects) orbiting both stars in a figure 8 configuration, crossing the barycenter of the star's combined rotations?

    I asked this very question not long ago:
    http://physics.stackexchange.com/questions/31201/might-a-planet-perform-figure-8-orbits-around-two-stars

  3. Re:Good to hear on Galileo: Europe's Version of GPS Reaches Key Phase · · Score: 1

    I see, thanks.

    One last question, if you don't mind: Why not use the GPS to lay a guide marker every 120', which can be later followed without satellite aid? I'm thinking along the lines of marked posts. Is the field to long to see a post on one side from the other? A laser might help in that regard, and the laser might also help in nighttime / foggy sprays as well.

  4. Re:Good to hear on Galileo: Europe's Version of GPS Reaches Key Phase · · Score: 1

    I see, thanks.

  5. Re:No, that's just a complaint on Linus Torvalds Answers Your Questions · · Score: 1

    Do you see how your response doesn't address the text immediately above it?

    Right, my response addresses the entire quoted text. See how you selectively misinterpreted my response in order to provoke a reaction? You're a troll, probably on a deliberate mission to cause open-source contributors like myself to divert resources to fighting you rather than doing something productive, so I'll not continue this discussion any further.

  6. Re:No, that's just a complaint on Linus Torvalds Answers Your Questions · · Score: 1

    I presume it works with OpenSolaris, FreeBSD, Mac OS, and/or iOS.

    You have an unsupported leap in logic there: that drivers don't exist because there isn't a stable ABI.

    Also, do show me the binary driver that works across two dozen cpu architectures. Or the manufacturer who is willing to release two dozen drivers for a niche platform.

    In other words, show that the lack of a stable ABI caused this problem, and then show that it would be a better solution. And don't ignore embedded linux; it's more profitable than the desktop.

    I have had the device distributor inform me that is the reason. Yes, I bothered to contact them and let them know that Linux support is important to me as a consumer.

    P.S. What resources have you contributed towards solving this problem?

    Are you implying that all users should be developers? Or is contacting hardware and software companies to request Linux support, and providing financial donations to the FSF, Anki, KDE, and other open source projects, and being active in open-source communities such as local LUGs, enough? And how would the situation be if I were "just a leech" who's interests are something other than IT and just wanted to use some Linux distro but not contribute, like most "computer users" do.

  7. Re:Good to hear on Galileo: Europe's Version of GPS Reaches Key Phase · · Score: 1

    Would that not help if 'real' GPS goes down, as per the Grandparent's concern?

  8. Re:Good to hear on Galileo: Europe's Version of GPS Reaches Key Phase · · Score: 1

    Satellite positioning doesn't work that way. The absolute error might be 10m, but it will be fairly consistent over tens of square kilometers and several hours. For reducing overlap it's fine.

    Thank you, I did not realize that the error is consistent. I'll look that up, but resources are welcome.

  9. Re:Good to hear on Galileo: Europe's Version of GPS Reaches Key Phase · · Score: 2

    In agriculture GPS guidance systems already have the capability of talking to Galileo when it is finished, and Glonass right now. After the military, agriculture is probably the most dependent on positioning technology these days. If GPS guidance goes down (IE our hardware has a problem), we simply cannot drive the machines. They are too wide to drive manually (my sprayer is 120 feet wide-- very difficult to drive that manually at less than 5 feet overlap even with markers) and the inputs too expensive to waste on overlaps. If GPS fails, everyone can switch to Glonass with Glonass correction signals, which should keep us going, but Galileo would offer superior accuracy and also precision. Such a switch, however, is not instantaneous. Would take weeks or months to get the firmwares updated (though the radios already are capable). And if that failed, I guess we can do terrestial positioning signals.

    But it's not a matter of if GPS will fail. It's a matter of when. Maybe the US will be able to replace satellites when they die, but if not, it should be very interesting to see what happens.

    If 5' of overlap in unacceptable, then Glonass will not help. The military signal provides 10 meter resolution, and the civilian signal provides one quarter of that (20 meter resolution - exercise to the reader why that is one-quarter resolution). In fact, I'm surprised that you can get consistent 5 foot accuracy with GPS. You might have more overlap than you think.

  10. Re:here we go again with the FUD on Linus Torvalds Answers Your Questions · · Score: 1

    I leave the floor open to anyone who has tried and failed to get driver code into the kernel: i.e. those with a legitimate complaint.

    I have bought hardware that does not work with Linux due to no stable ABI that the hardware engineers could target. Is my complaint not valid?

  11. Re:I wonder... on Woman Successfully Grows Ear From Arm · · Score: 3, Informative

    Was that JUST the canal regrown or the Cochlear as well??

    Just the outside cartridge. You can see photos of the whole procedure here, including the arm surgury (warning: gruesome):
    http://cbsbaltimore.files.wordpress.com/2012/09/sw-microvascular-ear-recon-rfff.pptx

    It is a Powerpoint slideshow, but opens fine in LibreOffice 3.4.

  12. Re:China did the same on Russia's New Secure Android Tablet Keeps Data From Google · · Score: 1

    I deliberately don't mention that as I don't want to change the subject of "the US's idea of what a country is differs from what that country decides that it is" to "your country is great/evil". Mentioning where I live (if it is not obvious already) would introduce a juicy red herring.

    By the way, the United States even disagrees which city is our national capital! We call city X our national capital and our seat of government is there, but US interests call city Y our capital and their embassy is in city Y.

  13. Re:China did the same on Russia's New Secure Android Tablet Keeps Data From Google · · Score: 1

    If you let an American company suddenly do your mapping for you, or tell you where you're standing with their satellites, then you might as well kiss whatever new territory you just claimed an hour ago good bye.

    You jest, but 1200^2 KM of my nation's land is listed in the CIA Factbook as belonging to an aggressive enemy who has not set foot there in 45 years. Therefore I cannot use FOSS maps such as Marble, but rather must use Google Earth. I regularly visit and have friends in that area, and my photo-organising software (Digikam) lists those photos (GPS-tagged) as being in a hostile nation.

  14. Re:If we exterminated them... on If Extinct Species Can Be Brought Back... Should We? · · Score: 1

    Though if we ever cross that goal post we'll need to come up with a good antonym for extinction.

    Intinction

  15. Sorry, but... on GNOMEbuntu Set To Arrive In October · · Score: 2

    Kubuntu is no longer an official Canonical distribution.

  16. Re:Just what the world needs on Russia Wants a Hypersonic Bomber · · Score: 1

    another hypersonic bomber

    I do not understand what the use of a hypersonic manned bomber is when we have guided missile technology today. What can the bomber to safe, cheaper, or more effectively than the guided missile?

  17. Re:Just a disk backup in your safe... on Ask Slashdot: Protecting Data From a Carrington Event? · · Score: 1

    A steel box is a perfectly good Faraday cage. Its a small antenna cross section, so you'll effectively get no effects inside the box.

    So if you are paranoid enough to care, just keep a backup of your data in your safe. Which you want to do anyway, since that helps mitigate many many many more risks to your data than a big solar storm.

    And the Faraday cage should not be, as the summary suggests, 100 km below the surface of the Moon. The Moon is outside the Van Allen belts, and gets pelted with more radiation than the Earth. Just put it 100 km below the surface of the Earth.

  18. No civilized country has ever stormed an embassy that I can think of, other than the Iranian revolutionaries storming the US embassy

    The Israeli embassy in Egypt was stormed just last year

    If you were to RTFA, you would notice that violent protestors stormed the embassy - the Egyptian government, OTOH, sent in soldiers to stop the protestors and protect the foreign embassy. i.e., the exact opposite of what the UK is doing.

    I was referring to the comparison to the US Embassy being stormed in Tehran. That was also a crowd, not government troops I believe. Yes, I have seen the photos alleging that Ahmadinejad was there.

    And I don't have to read in a newspaper what happened in Cairo on September 9th last year, thank you very much.

  19. No civilized country has ever stormed an embassy that I can think of, other than the Iranian revolutionaries storming the US embassy, and that was in response to 25 years of living under the Shah who had been forced on them by the US.

    The Israeli embassy in Egypt was stormed just last year:
    http://www.aljazeera.com/news/middleeast/2011/09/201199225334494935.html

  20. Re:Who would have thought... on Widely Used Antibacterial Chemical May Impair Muscle Function · · Score: 1

    You are going to die.

    Not necessarily. I drank four liters of water today and I feel fi##[NO CARRIER]

  21. Re:geekhack.org is ultimate keyboard site on Cherry MX Mechanical Keyboard Switches Compared · · Score: 1

    I frequent Geekhack often, in fact just last month I posted about the broken USB connector on my mechanical keyboard:
    http://geekhack.org/index.php?topic=33327

    It seems like this issue is not restricted to just one manufacturer as the fine summary suggests.

  22. Re:It's about damn time on TextMate 2 Released As Open Source · · Score: 1

    Um, vim? Vim has Unicode(multibyte) and SSH(netrw), and keeps everything in ~/.vim. Am I missing something?

    Yes, you missed the most obvious: .vimrc is _not_ in the .vim folder.

  23. Lots of good content in there... on The Internet Archive Starts Seeding Over a Million Torrents · · Score: 5, Informative

    ... for instance, here are audio recordings of Asimov's Foundation Trilogy:
    http://archive.org/details/IsaacAsimov-TheFoundationTrilogy

    _This_ is what the civilian Internet was intended for: spreading information and culture.

  24. Re:Hope they handle their code better than custome on How Intuit Manages 10 Million Lines of Code · · Score: 1

    Up until 2010 they didn't even support Linux for their web-based "online" version of the software, you had to spoof the user agent.

    If spoofing the UA worked, then they weren't "not supporting Linux" but rather "actively blocking Linux".

  25. Re:Hope they handle their code better than custome on How Intuit Manages 10 Million Lines of Code · · Score: 1

    So you filled out a crappy web form that makes you log in and got a reply within 2 hours from a large corporation with the correct answer without any lies or bullshit? That seems like perfectly acceptable customer service. That they did not give you the answer you wanted is inconsequential to the quality of customer service. Granted I don't believe for a second they actually ever intend to make a Linux version of their software, but they came right right out and admitted they have no plans.

    I am not complaining about the answer, it is quite what I expected. I am complaining about the process that one must go through to contact a sales rep.