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User: marcosdumay

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Comments · 6,436

  1. Re:Perch? on Micro Plane That Perches On Power Lines · · Score: 1

    Take a second look in that page. You'll probably notice that the inducted potential is proportional to the inductance of the secondary coil. Guess what, the wiring of portable equipment is very small, and, thus has very small inductance. Nearly all of the power emanating from your EMP will go to power lines.

    Unless you have a very good directional antenna on your EMP generator (better than anything you can carry on hand), you'll fry everything connected to power lines before you have any impact on the surrounding mobile equipment.

  2. Re:Perch? on Micro Plane That Perches On Power Lines · · Score: 1

    You don't need two motors if you can adjust the airelons to compensate the motor rotation. That can be quite a feat to a human, but easy with a computer.

  3. Re:Perch? on Micro Plane That Perches On Power Lines · · Score: 1

    It is probably light and powerfull enough to keep itselt flying even with the nose up (ok, not just like an helicopter, but with the same apearence).

  4. Re:Perch? on Micro Plane That Perches On Power Lines · · Score: 1

    Too bad that EMP probably won't work against mobile equipment, but will toast everything connected to any power line near you.

  5. Re:Traditionalists shouldn't panic anyways on eBook Sales Outpace Hardbacks · · Score: 1

    The iRex DS series do accept drawing and scribbes.

  6. Re:Traditionalists shouldn't panic anyways on eBook Sales Outpace Hardbacks · · Score: 1

    You can make notes on most ebook readers out there (I own an iRex, ditto for it, the Kindle, and most Sonny's). In fact, note taking on ebooks is supperior to note taking on paper books, since you can erase them without any loss of books contents. If you zoom, you also have more usefull space, but that is slower than note taking on paper.

  7. Re:Free as in beer; comes with required crapware on Valve Releases Updated Alien Swarm For Free With Code Base · · Score: 1

    All DRM need to take control of your computer to (kind of) work. So, all DRM is evil. Ok, that may be a bit exagetared, any DRM that (kind of) works is evil, nonworking DRM may not be.

    I don't know it Valve (kind of) works, tough. I've never cared to read about it or to test. And I'm pretty dam sure it won't run on Linux, so I'm not even thinking about giving it a try.

  8. Re:hydrogen is a joke on In Oregon, Wind Power Surges Disrupting Grid · · Score: 1

    Keeping the hydrogen in site doesn't negate the hight cost of storage tanks, and the hight pressure (wasting energy) needed for them. It also does not negate the inneficiency of electrolisis and of fuel cells. Also, it does not negate the fragility of those fuel cells. Now that you said, the only problem that keeping the hydrogen in site solves is the tanks weight.

  9. Re:From TFA, wind is fine. on In Oregon, Wind Power Surges Disrupting Grid · · Score: 1

    That's funny that you remember that. Because their long term seems to be around now. And yep, most of the adults ot the 30's are now dead, they were quite right.

  10. Re:It's about being truthful on Windows vs. Ubuntu — Dell's Verdict · · Score: 1

    Why choose Windows if you also have no idea what it is?

    Let's face it, that announcement is targeted to a kind of audience that, despite we wanting not to exist, is way too common to be ignored.

  11. Re:Modern GPUs, for all their hype, are just DSPs on Why 'Gaming' Chips Are Moving Into the Server Room · · Score: 1

    "The reason that we don't is that modern optimizing compilers have made doing so almost a complete waste of time except in very highly specialized or niche applications."

    Most programmers don't know assembly because high level compilers made things simpler, and that increased the number of programmers out there by orders of magniture. Most of those extra programmers were drawn from a pool of people that (lacking education or just intrisical capacity/motivation) couldn't learn to use machine code. Ok, it not being needed made some people that could learn it simply not making the effort, but those are a minority.

    "The hardware is so ridiculously cheap now that programmer time is far better spent writing elegant and abstract code that will run on anything that supports the VM rather than hand-optimizing for a particular piece of hardware."

    Hardware being cheap doesn't make programmer time better spent not optimizing things. Your argument is true for some applications, and completely false on others.

  12. Re:If you live and work in NZ, great on Software Now Un-Patentable In New Zealand · · Score: 1

    Wouldn't help, but wouldn't hurt either. If a corporation has (or intends to have) business in a country where software patents are permited, it must apply for the patents there, even if it holds pantents at home. Making software not patenteable in one country changes nothing at all.

  13. Re:If you live and work in NZ, great on Software Now Un-Patentable In New Zealand · · Score: 1

    IANAL, but as far as I understand it, yes. That would make the Mozilla corp out of the reach of MPEG-LA, but MPEG-LA would still be able to sue users of the product.

  14. Re:Huzzah! on Software Now Un-Patentable In New Zealand · · Score: 1

    "Meanwhile in the US, the way has been paved for business method patents."

    You should take a look on the case on Blinsk, recently decided by your supreme court. Some time is needed to see how far that will affect software patents, but the tide has clearly changed.

  15. Re:Question.. on RIAA Accounting — How Labels Avoid Paying Musicians · · Score: 1

    At some kinds of work people define it as slavery. I guess it doesn't apply here, tough I can't imagine why.

  16. Re:11 million years on Sun's Dark Companion 'Nemesis' Not So Likely · · Score: 1

    There weren't a lot of mines and graveyards before the industrial revolution. Maybe those were enough, I really don't know. Those lumps of iron won't probably be there in some milions of years, but yeah, the gold is quite a big cue.

  17. Re:ARM vs Geode on Surveying the Challenges of Linux On Cortex A9-Based Laptops · · Score: 1

    For the programmer, there is no differency, but I was talking about hardware.

  18. Re:ARM vs Geode on Surveying the Challenges of Linux On Cortex A9-Based Laptops · · Score: 1

    "x86 is nothing more than a model at this point"

    See, that is the problem. To get something usefull out of the x86 architecture you need a turing complete prefetcher, cache capable of varying instruction length, and a pipeline that will either slow (latency only, but it is more of a problem than it seems) every instruction down or will have a variable length. ARM needs none of that.

  19. Re:heh on How To Use HTML5 Today · · Score: 1

    That is not a list of reasons for the video tag not taking up. That is a TODO list from somebody that is helping that tag to take up. You should be able to know the difference. Most problems will be sorted out in no time, content protection (AKA DRM) won't and neither will camera and microphone access. Ok, the later may be solved by JavaScript someday, but it is out of the HTML domain.

  20. Re:11 million years on Sun's Dark Companion 'Nemesis' Not So Likely · · Score: 1

    They'd have to use some fuel that burns. That means, exactly the same that we use. The same holds true for ore.

    Don't you think it is funny that the entire surface has been reshaped several times, yet we are able to locate bones of creatures that survived hundreds of milions of years ago, and calculate their age? That is because your statement doesn't imply what you think it does. The surface changed, but under it, lots of places are still the same. Space derbris (like somebody already pointed) also won't go away in a few milion years, the ones in highter orbits will stay there until some rock puts them away, there will probably be some there when the Sun turns into a giant star. Of course, none of them will work anymore.

    But you are right on a point. If we were extinct two hundred years ago, nearly no evidence would remain. Future geologist would be very luck to gather a piece of glass, nothing else would remain. We'd probably disapear by then.

  21. Re:E-Readers? on Hands-on With Pixel Qi Screens In Full Sunlight · · Score: 1

    As somebody already said, that device would have tablet like capabilities. It will also have tablet like weight, and tablet like battery life (ok, some doulbe or triple of tablet like battery life, still, you can't spend a week reading it without recharge). I wouldn't classify that as an ebook reader, I'd go for something more adventurous, like calling it a "tablet".

  22. Hey that sounds nice on Student Wants Science To Name 'Hella' Big Number · · Score: 1

    I always wanted to deal with hella lots of atoms anyway.

  23. Re:DIY? on Good IC / Electronic Component Inventory Software? · · Score: 1

    It is hard to get a good epistemology of electronic components. Well, at least when it comes to ICs, it is very hard, for passive ones, it is easy. If there is some free one out there, why not go for it?

  24. Re:ARM vs Geode on Surveying the Challenges of Linux On Cortex A9-Based Laptops · · Score: 5, Interesting

    A previous poster already answered, on a nice manner. But to make things clear, x86 is a bad architecture, and to make it run any fast, you need to create a very power hungry chip. ARM is a much better architecture, leading to smaller and less power hungry cores.

    There is also a problem of scale here. It is cheaper to make an ARM that everybody uses than to make a x86 that will fit only a ninche. But that doesn't completely apply to the current situation, since the A9 is also ninche. (For the A8 things are different.)

  25. Re:Dark Matter on First Full-Sky Image From Planck Mission · · Score: 1

    At first, I wouldn't expect them to. It is dark matter afterall. But they did detect something interesting that I don't know enough to judge.