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User: Gis_Sat_Hack

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  1. Re:Reminds me of a joke... on 18th International Obfuscated C Code Contest Opens · · Score: 3, Informative
  2. Re:Don't bother reading the article on Is Your OS Tough Enough? · · Score: 1

    Interestingly enough, a year long study at http://zone-h.org/en/winvslinux2 has it that the Linux family is attacked (probed, not comprimised) more than Windows.
    As with all studies, your mileage may vary, how was it setup, how many IP's etc. - but a fun set of graphs in any case.
    ( What's that line down the bottom .. ? Is it BSD ? )

  3. Re:They *are* in your tires now... on RFID: The New Big Brother ? · · Score: 2

    Actual RFID for Tires Here's one example for the curious

  4. Lightning on Demand ? on Build Your Own Tesla Coil · · Score: 2

    If you like liked this artice, you'll love :

    http://www.lod.org
    http://www.lod.org/electrum.html
    http://www.lod.org/electrum/electrumpics.html ;-)

  5. slashdotted in _under_ a minute on When Spun Really Fast, CDs Explode · · Score: 2

    I hope the server doesn't explode as well ...

  6. Re:120 TB == one snapshot on The Past and Future of the Hard Drive · · Score: 1

    As I see it, a single one metre resoltion image of the earth's surface *is* a Mom & Pop application that in 5-6 years time if it's not standard with every computer should at least be in every school and library of the world.

    It makes an ideal backdrop for xchat, can show children were the ares damaged by radiation are, and can have little blinking lights for all the toxic waste ghost ships floating about looking for somewhere to dock.

    The 'high - storage' demand apps are those that have the above data in a time series or with deep 3D layers for seismic exploartion of atmospheric modelling, etc.

    I'm just talking about a good school atlas of the near future. :)

  7. 120 TB == one snapshot on The Past and Future of the Hard Drive · · Score: 5, Interesting

    There are already a number of Terra satellites downlinking data at about 4GB/hr, circling from pole to pole in orbits lasting under 2hrs.

    There are multitudes of airborne surveys churning out digital snapshots at 400MB a frame.

    Mosaiced together at 1m resolution with R,G,B and mean height above sea level, how much storage will a single global snapshot of the earth take ?

    Then consider for historical and environmental reasons, most urban/semi rural areas deserve a mosaiced snap at least once a year.

    120 TB is just the start . . .

  8. Re:people in windows dont know about gimp on Lycoris - Linux for the Masses? · · Score: 2, Informative

    700MB TIFF => NSA ?!?

    Stop smokin the grass.

    ONE (1) RGB aerial photo taken in a standard 6 monthly air survey is about this size.
    When producing a mosaic for that boring local Govt Land Admin dept of a single urban area,
    several hundred of these are mosaiced together to create a (typically) approx 32 GB image
    that is generally compressed to about 8GB or so.

    NSA, hrmmpt, they'd want something better . . .

  9. 1, 2, ternary computer simulations also ? on The Computer History Simulation Project · · Score: 4, Interesting


    "It is known that the ternary arithmetic has essential advantages as compared with the binary one that is used in present-day computers."

    Knuth himself predicted the flip-flop being one day replaced by the flip-flap-flop.

    I'd like to see this project tackle the simulation of the Setun series of Russian ternary computers.

  10. Bruce Schneier has said: on Exploring Apache's SOAP Serialization APIs · · Score: 5, Interesting

    Implementation of Microsoft SOAP, a protocol running over HTTP precisely so it could bypass firewalls, should be withdrawn. According to the Microsoft documentation: "Since SOAP relies on HTTP as the transport mechanism, and most firewalls allow HTTP to pass through, you'll have no problem invoking SOAP endpoints from either side of a firewall." It is exactly this feature-above-security mindset that needs to go. It may be that SOAP offers sufficient security mechanisms, proper separation of code and data. However, Microsoft promotes it for its security avoidance.

    source:
    http://www.counterpane.com/crypto-gram- 0202.html

  11. Re:Longitude on Centuries-Old Longitude Clock Runs Again · · Score: 1

    and, of course, the sources that Sobel drew upon.

    eg:
    "The Marine Chronometer, It's history & Development"
    http://www.rog.nmm.ac.uk/museum/harr ison/gould.htm l

  12. Re:FrazierWall Linux on Captain Crunch's New Boxes, Part II · · Score: 1

    With regard to "passing Sheilds Up & Sygate Scans",

    I feel compelled to point out that the box
    I am currently using is a bog standard Wintel
    setup running win 98 connected to the internet
    via a garden variety cheap ISP.
    The only 'security' running is an early version
    of ZoneAlarm & the use of Junkbuster's IP forwarding
    through a proxy.

    This combo *also* passes these 'security' scans.

    With the proxy in place, they get the _wrong_ IP address & scan my proxy host, not me.
    With the proxy disabled, they get the box IP correct, but ZoneAlarm happily blocks all ports
    in stealth mode.

    I _don't_ regard this box as secure at all, in fact
    it's the 'fun, toy, browsing & downloading' box that sits on the *outside* of the real firewall
    that protects my actual working & developing network.

  13. Re:Rupert Murdoch, please come to the courtesy pho on Slashback: Decade, Fragmentation, RDRAM · · Score: 1

    Ah Rupert,
    What we lost by importing the cane toad,
    we gained by exporting Rupert.

    I think you err in assuming that the man has an ideology beyond that of paying no taxes, expanding without limits and eliminating all competition.

    What he is doing to America is an extension of what he has done to Britain & what previously he & his forebears did in Australia.

    He makes little apeal/concession to the poor, 'cause frankly, they don't have any money.
    He rarely targets the rich, it's hard to prise $$$'s from their grip & after all, there aren't that many ++billionaires.

    His market, & thus how he positions his media empire, is all the others.

    The horror of Murdoch is that he is a mirror to the dark underbelly of the middle classes.
    That, and the fact that he charges $1.50 a peek . . .

  14. Re:Stirling Engines ... on Capturing Waste Heat with Quantum Mechanics · · Score: 1

    oh & for further info ... Google Stirling Engine Directory

  15. Stirling Engines ... on Capturing Waste Heat with Quantum Mechanics · · Score: 1

    Are _ external _ combustion engines that can be run (with appropriate mods) from ANY heat difference.

    Although displaced by the internal combustion engine, the stirling engine has still continued to advance. Modern Stirling engines can be smaller than a coin & used in satellites, or larger than a house.

    They are ideal for the recovery of energy from waste heat, exhaust's, furnace flues, domestic heat, etc.

  16. Terra Earth on The Amazing $5k Terabyte Array · · Score: 1

    Actually, it's the land surface that's approx
    100 x 10^12 sq metres (100T sq metres).

    Using a rough radius of 6,378 Km & assuming the earth to be a sphere, the surface area of the entire earth is approx:

    511.2 x 10^12 sq metres.

    What to store ?

    let's say color+height+simple usage byte.
    color = 3 bytes
    height = 2 bytes (16 bit signed int => MeanSeaLevel +/- 32,000 metres)
    type = 1 byte

    Storage = 6 x 511.2 TB = 3067 TB

    ( Aside:
    ocean floor color ? yes - most geophysical / geological imagery uses 'psuedo-color' created from measurable surface properties.
    )

    And that's _*just*_ the 'instantaneous' surface, as humans we would be most interested in the surface +/- 10Km about sea level, projected both forwards and backwards in time.

    The current batch od low orbit earth scanning satellites have instruments that (each) deliver approx 1GB data/hour & thats round the clock for the lifetime of the package (est 12 years).

  17. Cheap way out of the gravity well . . . on Public Survey For NASA's Planetary Research Priorities · · Score: 2, Interesting

    it must be time for the Clarke Space Elevator :

    http://www.spacescience.com/headlines/y2000/ast07s ep_1.htm?list

  18. Real Predictions, anyone ? on 10 Linux Predictions For 2002 · · Score: 1

    In mid 2004 the standard 'hard drive' from the local elCheapo discount should be approx 1 TB (terrabyte).
    What kind of GFLOPS are we expecting at K-mart ?
    Network speeds ?
    & what kind of apps will be running 'standard' on these boxes / wristwatches ?

  19. HUGE privacy threat? less than from light aircraft on DigitalGlobe To Sell 61cm Resolution Satellite Photos · · Score: 2, Informative

    Working with both satllite & airborne imagery, I can assure you that:

    a) can get *much* better photo from plane
    b) can pick out crop types (eg: yr mates pot) with right kind of filters. & can do this with higher res from light aircraft.

    To this day, most airbourne photographic surveys are carried out with large format traditional wet photography. The negatives are then scanned at desired resolution. A high res negative taken from 1000m altitude can be magnified to remarkable degree, even more so if a zoom lens was used.
    Many urban surveys are flown at about 4000m.

  20. Data rates . . . on DigitalGlobe To Sell 61cm Resolution Satellite Photos · · Score: 2, Informative

    Most of these satallites in polar orbits that precess with the sun line require three (3) days to return to the same position.
    Thus it would take three days to cover ALL the US, & so you'd only need 77.6 TB per 3/days NOT per second.
    Furthermore, there is probably a lo-res FOV of the order of about 1 pixel per 1 SqKm which is the FOV that covers the whole earth every 3 days.
    The hi-res 1 pixel per (61cm)squred FOV instrument more than likely has a keyhole FOV that can be targeted from the ground.

    The downlink data rate is prob about 4GB/hr and prob will continue for about 12 years (based on other similar sat's)

    Still, it's nice to the numbers. Western Australia is about 1TB uncompressed in R,G,B & Height.

  21. Re:Waste of a class? I think not. on University offers 'Simpsons' as Philosophy Class · · Score: 1

    Maggie' first word . . .

    I actually seem to vaguely remember, just might of been, ...

    dodecahedron.

    { I think Lisa was doing flashcards & when they were all 'off camera', Maggie spoke the word.

  22. Dead end - very likely. on Sony's Double Density CD-RW Drive Reviewed · · Score: 2

    Only doubling the normal CD capacity at a time when greater capacity R/W media are on horizon leads to a problem of the timing / critical mass variety.

    I work in an industry where files & data sets routinely range from 400MB to 32GB.
    For archival and client data purposes we use 1-4 CD's for stuff under 2GB & tape for larger sets & permanent archive.
    With 30 years of data in the vault, we tend to stick to 'long term' methods & only upgrade storage media types on a 5/6 year time frame.

    Even with the advent of DD-CDR's we are unlikely to change over as we would end up posting clients data on media that they can't yet read.
    Halving the number of CD's stored or posted isn't worth the data portability issues created.

    By the time DD-CDR's have matured and become common, we would be looking for the next great portable media with a capacity of 2-4 GB's.

    This kind of approach would be pretty common in many established industries & government departments.

    The exploration industry still embraced CD-R's wholeheartedly when they first appeared, quite a few offices still have original model KODAK external SCSI single speed CD burners, from the days when these weighty beasts cost a few grand $US.

  23. empeg - in car MP3 player on "Open-Source" ARM7 Core May Be On The Way · · Score: 1

    http://www.empeg.com/

  24. Re:Maybe this will be more efficient on Eidola - Programming Without Representation · · Score: 1

    IIRC, Russell & Whitehead had it that the lowest level of 'anything' was a "set" which was "a carefully defined logical abstraction".

    Others may (hell, others DID) differ.

    It took many pages to arrive at unity & many more to arrive at "mathematical abstractions" such as addition.

    Reading the Eidola pages, this is a project more in the spirit of studying formal languages, and more focused on 'semantics' as opposed to 'notation'. Thus the absence of a "Hello Dolly" program.

    I seem to recall that Turing spent a number of years on the sematics & logical design of ACE, & the damn thing was never even built.

  25. "terrible joke, very offensive" on India To Become Aerospace Powerhouse? · · Score: 1

    Close, but no cigar.