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  1. Artificial structure = land? on Answers From Sealand: CTO Ryan Lackey Responds · · Score: 2

    There seems to me to be one fundamental hole in Sealand's claim of sovereignty: their claim of Sealand as a territory (land). International law principles such as they claim (midline principle, for example) only apply to populated land. However, Sealand, being an artificial structure, could just as easily be qualified as a vessel (ship), in which case it is merely an abandoned, now salvaged, vessel anchored in what was once international waters, and now is British territorial waters. Since Sealand isn't likely to move, it's stuck there.

    Ships in international waters are subject to the laws of their country of registry; ships in territorial waters, however, are also subject to the laws of the country in whose territorial waters they are operating.

  2. Anyone saw this little gem on Real Working Mach5 On eBay · · Score: 3
    The bottom of the page says:
    In order to maintain bids from qualified buyers, you must contact the company that owns the Mach 5. They will ask for information that will verify your ability to purchase the vehicle. This will assure that unqualified bidders do raise the price.


    My emphasis... :)

  3. This article is bogus on Radio Astronomers Win Spectra · · Score: 3
    This Slashdot article is completely bogus. The quoted article says:

    WRC 2000 has protected for science all the frequencies between 71 and 275 gigahertz that radio astronomers currently use.

    Translation: the radio astronomy allocations in the 71-275 GHz band was not diminished. This is a far cry from claiming that over 200 GHz of EHF spectrum (of which there is 270 GHz in total) would be allocated solely to radio astronomy.

  4. Re:About the Kernel and newer users. on Linux 2.4.0-test1 Released · · Score: 2

    Don't use "make bzlilo". Use "make install". "make install" can be customized to fit your distribution by putting a script in /sbin/installkernel.

  5. Re:ISS_UNITS==customary on Astronauts In Florida For Space Station Mission · · Score: 2

    It's worse than that. The American modules only are using American units... all the other modules are metric.

  6. Re:The cool thing about jamming... on Engineers Build Satellite Jammer · · Score: 2

    GPS uses 12-hour inclined orbits. Not exactly Low Earth Orbit (LEO), but definitely not geostationary. Apparently the 12-hour orbits wasn't such a great choice... it makes them cross one of the Van Allen radiation belts which wears on the satellites.

  7. Re:How big an area do you want to jam? on Engineers Build Satellite Jammer · · Score: 2

    Oh, it's spread spectrum/CDMA alright, specifically the kind referred to as Direct Sequence Spread Spectrum (DSSS). That's what the pseudo-noise (PN) sequence, also known as a spreading sequence, is all about. Look up the definition if you don't believe me.

    The Russian GLONASS system doesn't use spread spectrum; there *each satellite* has its own operating frequency.

  8. Re:About the offset... on Engineers Build Satellite Jammer · · Score: 2

    Differential GPS relies on being able to yank the signal over the selected area in an emergency. It should be noted, though, that the Russian GLONASS system doesn't have Selective Availability, and that a combined GPS-GLONASS receiver can be build to achieve very good accuracy. The European Galileo system is supposed to be launched this decade, too.

  9. Re:What they don't tell you about GPS... on Engineers Build Satellite Jammer · · Score: 5
    Actually, this isn't any kind of secret at all.

    GPS contains the following capabilities:

    Selective Availability adds some noise to the signal received by civilian receivers; military receivers can tune this one out using a specific cryptographic key. Selective Availability was actually turned off during Desert Storm, because the U.S. military didn't have enough "military" receivers for their troops!

    Anti-Spoofing makes it cryptographically impossible to give a bogus signal to a military receiver.

    The P code (P for Precision) gives very high precision to certain military receivers which have been equipped with receivers for the P code signal, in addition to the regular (CA, for Coarse Aquisition) code. The P code is not receivable by civilian receivers.

    The GPS signal is jam resistant by being spread spectrum, but as the poster points out, there isn't any defense against wideband ("barrage") jamming.

  10. How big an area do you want to jam? on Engineers Build Satellite Jammer · · Score: 2

    Jamming radio signals isn't high tech exactly -- dicatorships have been doing it for many decades to keep real news out. The only question is: how big an area do you want to jam? The bigger the area, the fancier the jamming.

    You need wideband jamming to block GPS, since it uses spread spectrum, so the cost goes up (you need wideband amplifiers etc; you may be able to boost the efficiency by mimicing the real spreading sequence, which would add complexity.) However, the biggest cost is still going to be your wideband power amplifier stage. The bigger area you want to jam, the higher the cost.

    Oh, the military has played with GPS jamming for years. There has been several Notices To Airmen (NOTAMs) from the FAA warning of GPS outages around <military base> at <time> over the past few years.

  11. MIPS is not the plural of MIP on Proposal For Open-Source Benchmarks · · Score: 1

    MIPS = Millions of Instructions Per Second.

    Talking about "a MIP" or "bogo-MIPs" is absolutely idiotic.

  12. Re:I'm Not Sure on Best Live Streaming MP3 Solution? · · Score: 1

    Note that a "powerhouse" isn't really that expensive a machine these days, especially not if you consider the price of other audio gear. A PIII/450 can easily do realtime 44.1kHz stereo MP3 compression at 128 kbit/s, and they're not really that expensive.

  13. Mirrored at kernel.org on Microsoft Loses · · Score: 1
  14. Re:The advertisement on Mir Reactivation Mission to Launch Monday · · Score: 1

    Challenger was lost because of the seal between the shuttle and the external fuel tank leaked. No SRBs involved.

  15. Re:if you hate the utility bill... on Electric Car Drag Racing · · Score: 1

    Orbital engines have been widely discredited. Why? Because the surface area of the combustion chamber is too large. This causes very inefficient combustion, with severe pollution and fuel consumption problems.

    The Wankel engine looked like a great idea, but it didn't pan out.

  16. Re:So the main Space Shuttle engine burns clean?! on Sunlight + Algae = Hydrogen fuel · · Score: 1

    Several manufacturers (including DaimlerChrysler and Ford) have announced fuel-cell powered cars for the 2004 model year. Fuel cells that are powered with hydrogen produce zero pollutants -- the only exhaust is water, and unlike combustion engines they don't spark any of the secondary reactions that produce nitrogen oxides.

    Although fuel cells require hydrogen as fuel, the cars that are to be introduced in 2004 will typically run on methanol (CH3OH) which will be converted to hydrogen and carbon dioxide (2CH3OH + O2 -> 2CO2 + 4H2) by an onboard chemical reactor. This is due to the fact that hydrogen fuel isn't readily available at this time, plus the fact that methanol is liquid at room temperature, and thus easier to fit the existing fuel model (gas stations.)

  17. Re:Some issues on 24-Hour Power Cells for Wearable PCs · · Score: 1

    That would be a phenotype, not a genotype. The phenotype is a manifest expression of the genotype; it is common for multiple genotypes to express the same phenotype -- the most common example is of course in the case of a 100% dominant trait the genotypes DD (homozygotic dominant) and Dr (heterozygotic) both exhibit the same dominant phenotype.

  18. Re:And W2k uses some kind of funky PAE on Trillian Project Release Linux for IA-64 · · Score: 1

    Actually, in many ways it's *MORE* braindead than segmented memory was in protected mode.

  19. Re:Two things: on Linux 2.3.40 released · · Score: 1

    : korell 1 ; finger @linux.kernel.org
    [linux.kernel.org]

    The latest stable version of the Linux kernel is: 2.2.14
    The latest beta version of the Linux kernel is: 2.3.40
    The latest prepatch (alpha) version *appears* to be: 2.3.41-2



    What does seem to be the problem?

    However, I have just added a "finger.kernel.org" CNAME to avoid confusion on this subject.

  20. Re:Two things: on Linux 2.3.40 released · · Score: 1

    If you find an out-of-date mirror, please send a message to ftpadmin@kernel.org with the IP number (not the DNS name) of the failing mirror, thanks...

  21. Re:Crusoe as hard Java VM on UPDATED: Transmeta's Crusoe Unveiled · · Score: 4

    Already doing it. It was demoed at the launch.

  22. Re:Transmeta could be pulling out leg here on UPDATED: Transmeta's Crusoe Unveiled · · Score: 1

    Since V is fixed by the battery technology, you have a proportional relationship between P (the symbol for power is P, it's measured in W; just as the symbol for current is I and it's measured in A) and I. You don't use linear voltage regulation in a laptop; it is far too wasteful.

  23. Re:Crusoe not needed on Portable Fuel Cell Technology · · Score: 1

    *Ahem*... if you want a small machine, you need low power. ALL the power expended in a computer becomes heat, and you have to get rid of it lest it melts the case. Remember the Apple Powerbooks that caught fire?

  24. Re:Fusion ain't clean ... on Combining New/Old Approaches for Nuclear Fusion · · Score: 1

    This is correct, but even deuterium-deuterium fusion will produce neutrons. The problem is that a nuclei formed by a collision almost always has excess momentum to the point where it will spontaneously blow up. Therefore, deuteron fusion has the summary formula:

    3H2 -> He4 + p + n

    and the reaction formula

    H2 + H2 -> H3 + p
    H2 + H3 -> He4 + n

    No neutrinos are formed; that is only true for proton fusion (where some protons get converted to neutrons, releasing an positron and a neutrino.)

  25. Re:WRONG! on Combining New/Old Approaches for Nuclear Fusion · · Score: 1

    Sorry. Most ICBMs are hydrogen (fusion) bombs.