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User: X-rated+Ouroboros

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  1. FDMA, TDMA, CDMA, oh my! on The Real Reasons Phones Are Kept Off Planes · · Score: 2, Interesting

    Only if you've got a first generation analog brick-phone using FDMA. Since G2, the handset/cell interaction has been digital (The cell network was always digital) using TDMA or CDMA.

    TDMA on a moving target requires the handset ensure that the transmission occurs during its assigned timeslot. There is an acceptable amount of error built into the length of the guard interval between assigned timeslots. Violate the TMA assumptions of the code for calculating transmission timing significantly enough and the handset starts blabbing over into someone else's timeslot. Degradation of service occurs. This can be fixed by increasing the guard interval, but that reduces available bandwidth.

    CDMA was created with the shortcomings of TDMA in mind and does not suffer from them for the most part. The "soft-handoff" the CDMA performs as a handset moves from cell-to-cell could present a problem for the handset if it transverses through many cells rapidly and simultaneously. How the network deals with a rapid string of handoffs is entirely up to the carrier. One carrier flogged "no connection charge for dropped calls" back in the day, kept the code around, and ended up with malicious users being able to get unbilled calls by forcing handoff back and forth between cells before the tab started. The same thing happens unintentionally if you fly across a city and are legitimately changing cells fast enough. Who knows what other weird implementation specific things happen... The problem isn't with the technology, though.

  2. Re:voting machines waste of money on E-Voting Reform Bill Gaining Adherants · · Score: 1

    Voter 1 needs a ballot for District 13 in Portugese. Voter 2 needs a ballot for District 7 in English. Voter 3 needs a ballot for District 3 in English. Voter 4 needs a ballot for district 3 in Spanish for the Vision Impaired. With a fully realized electronic voting system, all of these people can be served by the same machine, at the same polling station, with the same basic procedure.

    The statistical skew from top balloting or voter fatigue can be eliminated by displaying to voters equivalent ballots with the order of candidates and/or races/measures/referenda presented randomly.

    A lot of things become enabled by removing the burden of generating and distributing physical ballots.

  3. Re:Do you really want a law breaker? on Scientist Organizes Resistance To Polygraphs · · Score: 1

    So should we sack all government employees who receive a speeding ticket?

    Funny you should mention it... speeding tickets can get you disqualified from nuclear work.

  4. Microsoft is intent on keeping their products... on Vista and the Music Industry · · Score: 1

    "Microsoft is intent on keeping their products out of the realm of content creation and editing."

    You've got it all wrong. Microsoft is intent of keeping content creation and editing out of the realm of the average computer user.

  5. Tracking Tags on DARPA Funds Remote Control Sharks · · Score: 1

    I was thinking about how we'll tag whales and dolphins with low power radio collars. It tracks time and depth and maybe a few other parameters. When the animal surfaces to breathe, the tag squirts off its collected data.

    Why not tag animals with something that measures, say, salinity and temperature and then gives this data to our submarines? Or that detects the presence of explosives trace? Radiation? Large sound transients... like a mobile living hydrophone network.

  6. Re:Finally on YouTube Stays Relevant Despite Pulled Content · · Score: 1

    The message isn't as strong as you think. There are definite... irregularities... to the comments posted to CBS content.

    CBS clips have an unusually high comment:views ratio and they usually read like text from spin control or a marketing campaign.

    Don't get me wrong, though, I've watched more CBS content on YouTube than I'm likely to ever watch on the TeeVee...
    I'd like to see someone "get it" and legitimately succeed by pursuing the Free and Open path.

  7. Re:Future Quantum Nerd Problems on Malware In Quantum Computing? · · Score: 1

    My pr0n-collection has wormholed itself to another dimension :(

    HAWT! Did you get video?
  8. Re:Land-based power supply troubles? on A $200-Million Floating Nuclear Plant? · · Score: 1

    Even without continuing fission, you will still have a not insignificant amount of decay heat to be removed from the core. As far as ZOMG METLDOWN!!! is concerned, you don't need to remove decay heat in a good plant design. If you don't, don't expect to be starting back up any time soon, though. Your auxiliary equipment (coolant pumps, drive motors, instrumentation) will almost certainly have to be replaced. I'd also like to point out to the USN Nukes, Naval Reactors, especially the submarine plants, are hugely over-engineered to handle maneuvering transients and for when something breaks out in the blue. Commercial power generating plants (even if they happen to be installed on a ship) have a completely different design philosophy built around operating steady state at near their design limits indefinitely.

  9. Re:Land-based power supply troubles? on A $200-Million Floating Nuclear Plant? · · Score: 2, Informative

    In multi-core facilities, it's not uncommon to have power for the offline plants' coolant pumps supplied by the operating plant. I'm not aware of any nuclear power plant design that is not capable of being self-sustaining insofar as suppling it's own power loads while operating. If this is a single core design (haven't RTFA), you'd need shore power to keep the plant systems running when the reactor is shutdown for maintenance. Also, the fuel doesn't move. Control rods of neutron absorbing material are moved to control core reactivity.

  10. Re:Yes. on Publishers Thank Google for Book Sales · · Score: 5, Insightful

    If they are using this privilege we have granted them to line their own pocketses at the expense of the advance of science and/or art... seems it's our duty to revoke the copyright we have granted them.

  11. Re:Can I get a shoutout from all the foodies? on Creating Water from Thin Air · · Score: 1

    Hygroscopic.... unless you actually mean salt and sugar allow us to see underwater?

  12. Re:bullies on Student Faces Expulsion for Blog Post · · Score: 1

    rights granted by the Constitution- which in this case means protecting this student's freedom of speech

    Within the philosophy upon which the US government is based, The Right to Free Speech exists independent of the government. We create and authorize our government only to the extent that it is representing our interests. Yes, it is the duty of the government we have created to protect our Rights, but the government does not grant us the rights we have authorized it to protect. If the government ceases to serve our purposes, we are also free to revoke the authority we have granted to it.

    Or at least that was the case until about the 1850s. Currently the government serves nothing but its own headless bulk.

  13. Obligatory on Telecoms Facing $50 Billion Lawsuit for Wiretaps · · Score: 2, Interesting

    The erosion of civil liberty is a threat to national security.

  14. Erosion of civil liberties... on U.S. to Gain Access to EU Retained Data · · Score: 5, Insightful

    ...is a threat to national security.

  15. Efficiency? on Japan's JT-60 Tokamak Sets New Plasma Record · · Score: 1

    The previous record of approximately 13 seconds, set by the Large Helical Device (also Japanese), was accomplished at 60% breakeven.
    What was the peak and integrated efficiency of this 26 second run?

  16. Many hands make light work. on Slashdot CSS Redesign Contest · · Score: 1

    "We don't have the source material and time to rebuild 153 icons."

    But you have the source material and time to rebuild the site's CSS several hundred times.

    All you have to do is ask.

  17. Re:200,000 Electron Volts on Team Confirms UCLA Tabletop Fusion · · Score: 1

    200KeV is about 3.2E-14 joules. So... if they can just make it about 100000000000000000000000 times more powerful it can operate a flux capacitor.

  18. Re:IS this really FUSION? on Team Confirms UCLA Tabletop Fusion · · Score: 1

    Neutron bombardment may results in fission. It might also result in absorption/capture (thus changin the isotope), or a number of different scattering reactions (the neutron whacks into one side of the nucleus and another neutron, a proton, or possibly an alpha recoils out the other side). It would be less-than-correct to call anything that happened "fusion".

    The production of neutrons is an indication of some nuclear reaction occurring... but since the article says it's D-D fusion, that's a kind of odd result. D-T fusion results in alpha and free neutrons, butD-D fusion primarily releases radiation. It might be the article is wrong and it's a tritium target. If they are getting a significant number of neutrons using only deuterium that would seem to suggest they've found a way to manufacture Helium-3. He3-H fusion has some interesting properties, but isn't considered viable due to the scarcity of He-3. I'd like to see a isotopic analysis to see what ash they're producing.

    Table-top neutron generators are hardly spankin' new technology, though. Look up Philo Farnsworth some time.

  19. "...so labels can get paid..." ? on Tension Between Record Labels And Digital Radio · · Score: 1

    "But over the long term, the music industry says, Congress should find a way to regulate these new digital radio networks so labels can get paid when consumers keep copies of songs,"
    Congress should find a way that the artists get paid. There will always be people that produce music and there will always be people that listen to music... there will not always be people that sit in the middle and skim off whatever they can.

  20. Re:Cross polination is a myth on GM Crops Create Herbicide-resistant "Superweed" · · Score: 1

    The phrase in question was "viable offspring" not "viable breeding population".

    In plants, a "viable breeding population" could be a single fertile individual.

  21. Re:Cross polination is a myth on GM Crops Create Herbicide-resistant "Superweed" · · Score: 5, Informative

    Two different species are geneticaly incompatible to produce a viable offspring.
    I think you mean fertile, not viable. Plants are dirty whores. They'll have sex with just about anything and, a surprisingly large number of times, viable seeds will result. The plants that grow from these seeds are generally infertile (not unlike a mule), but not always.

    As for the "only kill 90% of 'em" comment. It comes out of antibiotic research... and while I'd be wildly suspicious of anyone trying to draw a direct analogy between bacteria on a petri dish and multicellular eukarya in the wild... you don't even have the regiment right. Basically it was the comparison of the evolution of antibiotic resistance in bacterial populations where a plate was allowed to be recolonized by suriviors v. a plate that was reseeded with the wild population. The analogy to farming would be to purposefully plant non-resistant strains of undesirable plants so they could compete with any resistant varieties... not "don't kill all of 'em".

  22. Re:I don't understand this approach on Negroponte's Talk at Emerging Technology Conference · · Score: 1

    Probably because he doesn't want market forces to enter into anything but the production of the laptop.

    He's trying to make it so the laptops have essentially zero non-intrinsic value.

  23. Re:So what happens when... on Run Linux as a Windows Screensaver · · Score: 1

    Well, I know what I'm doing this weekend!

  24. Re:Size of a salt cellar??? on Robot Saves the Day at Radiation Lab · · Score: 1

    That was the size of the canister- not the Co-60 itself. Generally, you get however many microCuries embedded in a poly cylinder or disc to make something large enough to handle.

  25. Re:someone smarter to me on Robot Saves the Day at Radiation Lab · · Score: 2, Informative

    Irradiation doesn't make things radioactive. Exposure to a neutron flux can cause materials to become activated, but unless you've got a nuclear reactor around this isn't likely to be a problem.