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User: marcosdumay

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Comments · 6,436

  1. Re:Um... That is why it is called a "TEST" on Failures Mark First National Test of Emergency Alert System · · Score: 1

    How much can failures pay anyway?

  2. Re:Fine. You find an asymmetric primitive on Ask Slashdot: Post-Quantum Asymmetric Key Exchange? · · Score: 2

    They not being as inspected as RSA is a rational reason for not using them, and not using them is a rational reason for not inspecting them. Thus, I forsee that they stay less inspected than the RSA until we discover some importan weakness on RSA, then that fact won't matter anymore. Notice that I'm not complaining about that, this is a reasonable way of handling things, and nobody is getting hurt.

    Now, to answer the original question. People are ignoring quantum computing because it is not even on the horizon. Entangling 11 bits (we are here now, aren't we?) is hard, 12 is way harder, and your breathing space gets exponentialy smaller when the number of bits increase. So, when people finally entangle 127 bits, what means that we are roughtly halfway through a quantum computer that can break the currently outdated 128 bits RSA, wake me up. By them I'll be willing to consider those computers a threat.

  3. Re:FTFA: Not sharing so much as building together on Teaching Programming Now Emphasizes Sharing · · Score: 2

    That is probably because the goal of this one teacher wasn't to grade each studenty individually, but to help them learn something.

  4. Re:solar panels, CCDs or camouflage? on NASA Creates Super-Black Carbon Nanotube Coating · · Score: 1

    For an infrared cloack you need an astounishingly good insulator with some kind of venting, not a heat absorber. For a more efficient solar cell (photovoltaic cell implicit there?) you need a better solar cell, what is completely unrelated to this thing. The same applies to CCD arrays.

    Now, about some other uses. For a good insulator that things isn't usefull at all. If you put it facing an air (or vacuum) gap, you'll make it a poorer insulator, not a better one. For thermal solar electricity generation you need something that is good at absorbing visible light, but bad at absorbing infrared, so, doesn't apply. It could be great for heating things at low temperature environments, but I bet any dark painting will be nearly as much as good, and you can probably get much cheaper paintings with other technologies.

    All said, the summary already enumerated the best uses.

  5. Re:Clashes with data retention directive? on Upcoming EU Data Law Will Make Europe Tricky For Social Networks · · Score: 1

    $ mail everybody -s "Get out of my lawn!"
    >Get out of my lawn!
    ^D
    cc:
    $

  6. Re:Surveillance on Upcoming EU Data Law Will Make Europe Tricky For Social Networks · · Score: 1

    How many people think that today without doublethinking? He didn't fail to take marketing into account, he didn't even forget to take nothinking into account, there is an entire passage on 1984 telling who doublethinking is for, and who doesn't need even that, because they aren't thinking at all. All said, he made marketing as powerfull that it is implicit on the book that even the people fighting Big Brother were convinced to do so by the MiniLove.

  7. Re:Frankly... on The Political Assault On Los Alamos National Laboratory · · Score: 3, Informative

    Yet, from what I remember from the movie, Yoda was talking about family and loved ones, not material possessions.

    Excuse me, but I refuse to learn to free myself from them. All you saying you have nothing to lose aren't looking very hard.

  8. Re:Exaggerated by about five orders of magnitude on The Political Assault On Los Alamos National Laboratory · · Score: 1

    That is because they are replacing single huge bombs by composite smaller ones, that are able to destroy the same area, but cost way less to build and maintain. Ok, there is also some dismantling, but total power is not a usefull metric at all.

    Composite bombs avoid problems with the destruction radius being just proportional to the square root of the power.

  9. Re:Snake on A Cognitive Teardown of Angry Birds · · Score: 1

    A game people played at their telephones before the smartphones era.

  10. Re:It costs $650 on Asus Unveils Quad-Core Transformer Prime Tablet · · Score: 1

    It is a powerfull computer, with a longer battery life and lighter than any full-sized laptop you'll find out there. Also, it has a touch screen, and can be used as a tablet. There is no mention of networking, but I bet it is capable of both WiFi and 3G

    As cons, there is no option of spinning disk, no carring lots of data. And it is small (altough that can be a pro for some people).

    I'd need to know if it is powerfull enough to run emacs on a TTY before buying one ;)

  11. Re:Their doing it wrong... on Asus Unveils Quad-Core Transformer Prime Tablet · · Score: 1

    It has a 12 or 18 hours (depending on the configuration) battery life. Extra life isn't that relevant.

    Anyway, I don't understand why people use backlights on led screens. Shouldn't the screen already be bright enough? Also, as far as I know, transreflective display only works for LCD. For using that they'd need to make their device thicker, and somewhat less apealing.

  12. Re:Had to be asked. on Faster Algorithm for Sphere Packing Discovered · · Score: 1

    The first time I saw the problem, it was stated as a question. After you formulate your second "right" answer, it stops being obvious.

  13. Re:I get the feeling.. on Gadget Allows You to Keep Bees In Your Apartment · · Score: 1

    We won't hear about that history. That is because PR only works one way, but it is also because of other things:

    1 - The bees won't survive on apartments. They won't have anything to eat, so all the other problems won't happen. There won't be bees attacking people, difficulty on getting the honey, birds suddenly deciding to live inside your house, this thing breaking, it getting ugly with time or any other problem.

    2 - It won't sell nearly as much to get at the news again. People aren't that crazy, and are lazy enough to not want to keep bees (even if they could survive on the environment). Also, it will probably be too expensive.

  14. Re:There will be no pr0n in the .XXX domain on ICANN Begins "Land Rush" For .XXX Web Domains · · Score: 1

    By the other side, it just makes it easier to google with "site:.xxx". Anybody with more than one neuron will probably get both a .xxx and a .org or .net domains for the site.

  15. Re:illumination on NASA Snaps New Photo of Incoming Asteroid · · Score: 1

    The asteroid is projected on the image in a way that makes the illuminated part be up. With a different projection, if could be down, or on the middle.

    The bright part is what is headed to us.

  16. Re:What worst case? on World Emissions of Carbon Dioxide Outpace Worst-Case Scenario · · Score: 1

    First, by fossile you meant fossil or fissile?

    Now, about the actual content... You are ignoring the different severity between kinds of emissions, different half-life, natural sinks and sources, and plenty of things that I also don't know about, and thus can't point to you. Also, I second the "citation needed" for that 6 degrees celcius part.

  17. Re:Didn't see it on Brazilian ISPs Hit With Massive DNS Attack · · Score: 1

    At Brasilia (not a small city, but smaller) I've seen nothing either. The first time I've heard about the attack is here.

  18. Re:Amazon abandoning what was good about their pla on B&N Nook Tablet vs. Amazon Kindle Fire · · Score: 1

    Web browsers that display static stuff well is viable and quite easy to imagine on e-ink. Any refresh rate that is enough for reading a book is also enough for reading an article on the web. Yet, it would need some developper time for customizing the browser (hight upfront costs, for a feature that is demanded from several people, no, big corportations aren't fit to that market).

    Calculator, calendar and a few other tools are quite viable, and just common sense. I can't really understand why no e-reader comes with those.

    Now, for color and video you are right. Those aren't fit for e-paper, at least for now.

    What would be a killer feature of the newer devices is a highter refresh rate on non-epub files. Now that we have better bateries there is little reason not to put a faster processor on them and deal well with every kind of file. But I really don't expect that feature to come from Amazon.

  19. Re:Funny Interference Pattern on Hubble Directly Images Disc Around a Black Hole · · Score: 1

    The image in the article looks like one'd expect a disk to look like through a lens. That means that it is a raw image (or a reconstruction of what a raw image is like) from the study, not the resulting render of the disk.

  20. Re:I can go one better on Mathematically Pattern-Free Music · · Score: 1

    Why dd? Neither is a block device.

  21. Re:Funny Interference Pattern on Hubble Directly Images Disc Around a Black Hole · · Score: 1

    If my understanding of the article is correct, that is what they did.

  22. Re:Amazing on AMD Layoffs Maul Marketing, PR Departments · · Score: 1

    Except for the repetitive redundant part where you keep saying "engineers, engineers, engineers", lots of companies seem to not understand that at all.

  23. Re:Good? on AMD Layoffs Maul Marketing, PR Departments · · Score: 1

    "No need to guess where their market is going, since there's always a call for more cores and more clock."

    What is different at the CPU market? More cores, more clock, less power consuption, price (you forgot the later two). Ok, there was the change to 64 bits, and the doubt about ARM vs. x86*, but if they had an entire team just to figure those, they were really throwing money away.

    * ARM vs. x86 is easy. What plataform will be better in cores, clock, power consuption and price? Each will win the markets that need whatever of those three they are best at. If you are the one designing the chips, it changes from a prognostic to a decision.

  24. Re:Bring back ability to use plus and quotes... on Google Tweaks Algorithm As Concern Over Bing Grows · · Score: 1

    I was under the same impression. Also, the + makes google consider some words that are normaly ignored, like "and".

    Anyway, Google always ignores symbols and numbers (and anything with non alphabetical characters, even when they are words). I'd easily switch to something that takes those into account, and make the + operator really to what was on google documentation. (That means, searching for +1234 return sites with 1234 on them.) Up to now the competitors aren't good enough.

  25. Re:Does that explain the arrow of time? on Fine Structure Constant May Not Be So Constant · · Score: 1

    Observation in quantum mechanics isn't symmetric on time either. It tends to be ignored, because we have no good definition for it, but it exists, is central to one of the most important theories of physics, and is assymmetric.

    It's also badly defined, what is worth repeating, because it is simply incredible for a concept that is central to one of the most important theories of physics...