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User: Intron

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Comments · 2,179

  1. Re:I saw this in "The Core" on Scientists Find Hole In Earth's Magnetic Field · · Score: 1

    What is the normal amount of solar particles when facing away from the sun? I'm thinking not very high.

  2. Re:How deep? on British Royal Navy Submarines Now Run Windows · · Score: 1

    If it was smaller you could carry more than two across a crowded pub. But with pints, you can just buy for yourself and a sheila and let your mates buy their own.

  3. Re:Who is this grrlscientist? on Convergent Evolution Upends Honeyeaters' Taxonomy · · Score: 1

    "Where'd all these girls come from lately, anyway?"

    Just because someone doesn't advertise their gender, why would you assume they are male? Do you believe that you can tell from their comments?

  4. Re:Pneumatic tubes over long distance? on 100 Years Ago, No Free Broadband Pneumatic Tubes · · Score: 1

    You can have secure long distance tubes using IPSEC - Internet Pneumatics with Steel Enforced Cases.

    What I want to know is what about Net Neutrality? Do I have to use their expensive pneumatic cylinders or can I buy my own?

  5. Re:Slow down there on DNSSEC Advances in gTLDs; Bernstein Intros DNSCurve · · Score: 0

    It only requires one extra bit if they would just implement RFC 3514. In case anyone thinks it is obsolete, the IETF RFC 3514 Working Group (IETFRFC3514WG) should have it updated for IPv6 by 4/1/09.

  6. Re:Awesome on New Hampshire Law Students Take On RIAA · · Score: 1

    That's true. 99% of the lawyers make the other 1% look bad.

  7. Re:You don't need an engineer on New Hampshire Law Students Take On RIAA · · Score: 1

    But you do need an expert witness to dispute the testimony of a credentialed engineer.

  8. Re:PC ONLY? on 'Greasemonkey' Malware Targets Firefox · · Score: 4, Funny

    It's javascript in firefox, so the malware writers could have made it platform-independent with a little bit more work. But did they? NO! Yet another example of ignoring the Linux platform.

  9. Re:NO DRM! Can you hear us now? on EMA Suggests Point-Of-Sale Game Activation To Fight Piracy · · Score: 1

    Did you know bad/cheap memory can cause memory leaks? {citation needed}

  10. Re:The Text on Twenty Years of Dijkstra's Cruelty · · Score: 1

    Estimates of software reliability are 1 - 10 errors per 1000 code lines in production code. Hardware is many orders of magnitude more reliable, so spending any lines of code worrying about random hardware errors is a mistake - it introduces more errors than it will ever fix. The system reliability has to be based on other factors like redundancy, end-to-end parity/ECC, journalling, etc.

  11. Re:The Text on Twenty Years of Dijkstra's Cruelty · · Score: 2, Insightful

    OK, perhaps I should have mentioned "in the context of avionics systems." A watchdog timer is a timer that resets a CPU system if a timeout is reached. It is a way of attempting to achieve reliability in the presence of less reliable hardware.

    A watchdog timer is a timer that is periodically reset. If it times out the system does whatever it is designed to do in that case, which is not necessarily to reset the CPU. The use in high-availability systems is usually to transfer control to a standby when the primary system has failed.

    Do you believe it doesn't? The atmosphere stops gamma rays from hitting your equipment. These gamma rays change the value of variables (as in, the gamma ray flips the DFF circuit to the opposite value in your CPU). That means you cannot rely on variables to make sure your loop exits. Therefor loops are bad.

    Hogwash. If you can't depend on variables or CPU registers, then you can't depend on your if-statements branching to the correct location. Your example makes no sense.

    I have a multimillion dollar budget that says I am not - how about you?

    The CEO of AIG has a bigger budget than you, so is he even more correct?

  12. Re:The Text on Twenty Years of Dijkstra's Cruelty · · Score: 1

    > OK, and I don't want you working on avionics, thanks!
    >
    > There are several ways to deal with the problems presented

    what problems are you talking about?

    > - apparently you are not intelligent enough to judge that the industry-wide best
    > practices for avionics software engineering are good.

    ad hominem attack

    > Learn what a watchdog timer is,

    I have

    > and why it is a bad idea for avionics,

    No clue - It's used in vital logic for failover between redundant controllers.
    I bet it is used in avionics systems for the same purpose.

    > and why loops in avionics controls are bad

    No clue

    > before telling me that I "don't understand how to prove a loop will exit."

    Saying that one type of control statement is good and another one is bad
    is absurd: if and loop are both just conditional branch statements.

    > (Hint: Avionics often flies above the atmosphere - variables do not necessarily
    > keep the values you given them)

    What does the one have to do with the other?
    Do you believe that flying above the atmosphere changes your variables?

    I think you are just spouting random gibberish.

  13. Re:If Bush wants it... on Bush Demands Amnesty for Spying Telecoms · · Score: 1

    Executive Orders are not law, and neither are "signing statements", no matter what GB thinks. The big difference with Watergate is that this was done to combat terrorism and not for politics. I think many people disagree with Bush's beliefs and methods who don't disagree with his motives.

  14. Re:The Text on Twenty Years of Dijkstra's Cruelty · · Score: 1

    Thank you for proving my point! The proper, best practices way to program a flight control system is a huge series of if statements. No loops are allowed, because the computer hardware has to be considered in the engineered design! If you put in loops, an infinite loop can occur - if you use a series of if statements, that is not possible.

    That's absurd. If you don't understand how to prove a loop will exit then you should not be working on critical system software. I've seen vital logic designs (vital == human lives depend on correct operation) and there was no restriction on use of loops. There was an emphasis on proving correct operation.

  15. Re:this is a tracker problem, not a client problem on Making BitTorrent Clients Prioritize By Geography? · · Score: 1

    Since ISPs pay for inter-ISP data and get intra-ISP data "free" you would think they would be willing to spend money on developing the tracker software. Downloads are a significant fraction of their traffic.

  16. Re:Tax Dollars on FCC Considering Free Internet For USA · · Score: 1

    google much? Average sentences imposed on Federal offenders sentenced in U.S. District Courts Oct 1, 2000 to Sep 30, 2001.

      Violent_Felonies 90.7_months
      Drug_Felonies 73.9_months

  17. Re:Python has "perfect syntax"? on Solving the Knight's Tour Puzzle In 60 Lines of Python · · Score: 2, Interesting

    http://anthonyf.wordpress.com/2006/07/07/solving-the-knights-tour

    I think even if you didn't know any lisp you would find this solution to be pretty readable.

  18. Who we are giving to this Xmas on Should Taxpayers Back Cars Only the Rich Can Afford? · · Score: 1

    Some top charities in 2007:

    Salvation Army. Highest salary $187,482. Revenue that goes to charitable services 83%
    Nature Conservancy. Highest salary $406,933. Revenue that goes to charitable services 78%

    Some top charities in 2008:

    Citigroup. Highest salary $14.4M. Revenue that goes to charitable services 0%.
    AIG. Highest salary $7.66M. Revenue that goes to charitable services 0%.

  19. Re:What I still don't get is... on Ubiquitous Hydrogen Power Not Getting Any Closer · · Score: 1

    Storing energy. And apparently not a very efficient one.

    But then again, the first internal combustion engines weren't very efficient either and look where we are now.

    Ha ha ha... Wait...

    I assume that was a joke? Because ICEs are one of the most inefficient sources of energy in the world, they waste about %80 of their energy.

    Any car energy source is inefficient. If you drive 100 miles and then drive back you have done no net work, so any energy you used is "wasted". I don't think that any car can live up to your standards.

  20. Re:not so fast on Experts Tell Feds To Sign the DNS Root ASAP · · Score: 2, Interesting

    Unfortunately, the comment is wrong. The Kaminsky bug is not cache poisoning by fraudulent UDP packets (which is a concern), it is using glue records to provide false NS address. Example:

    You visit a website which pulls an image from subdomain.malicious.example.com. To get that, you need to know its nameserver. So you ask malicious.example.com who tells you that the nameserver is ns.citibank.com and oh, BTW that address is 666.666.666 (glue record). Now your cache has a phony address for ns.citibank.com. This would be the same whether you were using TCP, UDP or carrier pigeon. Glue records are part of the DNS protocol.

    The way to fix the Kaminsky bug is not to switch to TCP or DNSSEC, it is to not cache glue records.

  21. Re:I still don't get it though. on South Carolina Wants To Jam Cell Phone Signals · · Score: 2

    USA has the highest incarceration rate in the world; mostly due to stupid, zero-tolerance drug laws.

  22. Re:That's no moon! on Dropped Shuttle Toolbag Filmed From Earth · · Score: 2, Interesting

    That's a tool bag!

    Sigh...

    There go another set of $10,000 government hammers -- not to mention the $24,000 socket set :(

    (Ha. As an aside, I wonder how much that tool bag really cost when you factor in its mass during launch.)

    Not the worst accident that's happened due to a dropped tool.

  23. Re:I still don't get it though. on South Carolina Wants To Jam Cell Phone Signals · · Score: 4, Insightful

    "I don't get why are cellphones themselves a problem, and why the solution is jamming them."

    http://mediaresearchhub.ssrc.org/grants/funded-projects/prison-phone-service-provider-contracts-kickbacks-and-fiscal-impact-on-prisoners2019-families

    The state makes a fortune off prison telephones. All of the talk about "planning crimes" or "drug deals" is total BS.

  24. Re:Economy class arm-rests on Obese Have Right To Two Airline Seats · · Score: 2, Funny

    For those ones you need a screwdriver.

  25. Dear Slashdot on Is Open Source Software a Race To Zero? · · Score: -1, Flamebait

    I am a large convicted monopolist software producer. Over time I have seen the price of my product driven downwards by free competition. Fortunately, I have been able to maintain some price level by using secret APIs to link my OS with proprietary application software and by illegal deals with hardware manufacturers. But over the long run I can see some problems with this business model. Can you help me?