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User: robslimo

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  1. Re:Obviously... on Putting the TV Broadcast Spectrum to Better Use? · · Score: 5, Interesting

    Sell it all to ClearChannel

    Maybe, but if the FCC dude is right about the future of TV program distribution, ClearChannel won't want it. It might be great if some goes to Hams and other bits to commercial radio and unlicensed (low-power) data transmission (upper UHF freqs).

    There are a couple of problems with it his idea/prediction, the most important is the shear momentum of the number of TV broadcasters and receivers using this part of the spectrum. Sure, over time the broadcasters could stop transmitting and broadcast only via cable, but that will take some time... and leave rural viewers out in the cold.

    Second, with today's technology and demands for data transmission, there are some limitations to this part of the RF spectrum that might make it unattractive. With the longer wavelength (especially VHF as compared to new cell/mobile phones, 802.11x, etc in the GHz range), efficient transmitter/receiver antennae would probably be too large for most modern applications. Granted, in the upper UHF region, it gets better, but modern, high bandwidth data transmit/receive devices aren't using 1GHz and up just because of frequency allocation... there's beau-coup bandwidth to be had up there, without a lot of the terrestrial source interference issues that bug over-the-air TV viewing.

  2. [OT] Re:No. Apple cuts a cheque... on iTunes Indie Meeting Notes · · Score: 1

    etymology is the word you meant to use. Entomology is the study of insects.

    Easy mnemonic: Entomology, think ants. Works for me anyway.

  3. Re:Argh on Two New Mars Rovers Will Be Launched In June · · Score: 1

    Same here. Couldn't they devise a simple mechanism similar to a windshield wiper to keep the dust off? Or perhap something akin to the plastic sheet roll that they use in racecams to keep the rubber/tar/smoke/dust from blocking the view? Maybe a low volume air compressor that would occasionally blast a little jet of martian air over the panel surfaces?

    That ain't 'rocket science'.

    -robSlimo

  4. Re:What are you doing? on Surviving Tornadoes · · Score: 1

    From your link:

    The entire premise of estimating wind speeds from damage to non-engineered structures is very subjective and is difficult to defend from various meteorological perspectives.

    The ratings in the F scale are for wind speeds, ergo the damage that could be done. Unfortunately, we don't have accurate methods to measure the actual wind speed, so the best we do is estimate if from the damage done to non-engineered structures, meaning that a tornado that passed through a relatively uninhabited area should be rankable by damage to trees, etc. It is still the *intent* of the Fujita scale to rank tornados in terms of wind speed.

    -robSlimo

  5. Re:MMMM... Oklahoma on Surviving Tornadoes · · Score: 1

    I've lived in Stillwater since '84. In 1992-ish, I was in an office that had a nice, big ol' plate glass window in it when a twister started wandering around in town. As I cowered under my desk, I watched the plate glass window breath in and out (never broke, though).

    Here's what really scared me: I was watching out that window at a 30' tall elm tree that was bent way over under the force of the wind for a long time... then suddenly, it flipped around and leaned hard in the *other direction*. That twister ripped up utility poles, houses and apartment buildings, but I eeked outta that one with nothing but an increase respect for Mother Nature.

  6. Re:Crazy Winds~ on Surviving Tornadoes · · Score: 1

    I don't know why, but the home builders in Oklahoma just don't put in a storm shelter unless you specifically ask for it (and pay extra, of course). I heard one builder say that the red clay soil of OK doesn't place nice with basements, but I think that's a cop-out.

    In Kansas, it seems like most homes have a basement; that's just how they build them.

  7. Re:What are you doing? on Surviving Tornadoes · · Score: 2, Interesting

    That's right, pick on us Okies when we spin a little figure of speech.

    What I take exception to is this phrase:
    Unlike the tornadoes of May 3rd, 1999, which killed 47 and injured more than 800, we now have much better tornado information and prediction technology.

    Perhaps the fact that '99s tornado was an F5 and this one was a F2 to low F3 has a little to do with the difference in damage/causualties?

  8. Re:Tip #1 on Surviving Tornadoes · · Score: 5, Interesting

    I suppose. But being a wide-load also makes you a bigger target for flying debris.

    I live in Stillwater, OK and was watching the news very closely yesterday afternoon/evening just to make sure those twister weren't headed my way.

    Sure, the early warning systems are better, but the main improvements are:

    (1) Modern variants of doppler radar (and software for it) that can better identify wind velocities in terms of rotation and likelihood of funnel formation. However, the radar can rarely (if ever?) tell for certain if a rotation in a storm is actually a tornado or if it is on the ground.

    (2) Communication. The National Weather service and the Severe Storm labs in Norman work closely with radio and TV to get the info out about severe weather. But too often, they know to report actual tornados only after an eyewitness has called to report one on the ground.

    The one thing they do know fairly well is the conditions that could lead to tornado formation. But the presence of those conditions (as we can sense/interpret them now) does not tell us that there *will* be a twister or *where*.

  9. Re:How will they retrieve the samples? on MUSES-C Launched · · Score: 3, Informative

    Still no complete answer, but I found this link:

    http://abob.libs.uga.edu/bobk/ccc/cc011698.html

    Excerpt: Muses-C spacecraft will also fire explosive charges into the asteroid, collect the samples that are ejected from the impacts, and return the samples to Earth in a capsule for
    laboratory analysis


    and this:

    http://www.isas.ac.jp/e/enterp/science/lunapla.h tm l

    In this mission, the spacecraft will land on the asteroid surface, sample the surface rocks/soils and encapsulate them into a container. We will recover the samples carried by the entry capsule which will provide us with many findings of primitive bodies in the solar system.

    -robSlimo

  10. How will they retrieve the samples? on MUSES-C Launched · · Score: 3, Interesting

    OK, Apolloa 17 brought samples back from the moon, but astonauts more or less hand carried them back. How are the Japanese exepecting to get their samples back? I never heard of a space probe designed to return anything back to earth, so I'm curious. Are they going to drop the craft back to earth on a trajectory that minimumizes re-entry heating?

  11. Re:FINALLY! on Floppy the Robot · · Score: 3, Interesting

    When I saw the article title, I immediately thought of some 8" floppy drives I've got. The neat thing about them is that they've got a standard (8051-ish?) microcontroller and socketed EPROM to control them... re-programmable floppy robot!

    Unfortunately, they also weigh as much as my 3 week old baby. I do plan to do some boating this summer... boat anchors maybe?

    -robSlimo

  12. Re:... and what if things go wrong? on Common Cold A Cure For Brain Tumors? · · Score: 1

    What happens if the virus ends up killing normal brain tissue for some reason?

    I understand your point and I would further assert that yours is a generic concern in the area of genetic engineering. We know how to sequence DNA (mostly error free), we can look at a segment of RNA and predict what protein(s) it might produce, but we really don't know enough about the big picture to predict side effect and the potential for mutation to be able to 're-program' a bacteria or virus to do what and only what we want it to do. On NPR, I heard a scientist refer to DNA as spaghetti code that's been tinkered with by a bad programmer for millions of years. How are we to unravel that code and manipulate it to our end confidently?

    On the topic of cancer treatments, though... todays chemo-therapy treatments most definitely *do* kill normal tissue. They basically pump a patient full of poisons and hope they kill the cancer and not the patient. If the infectious aspect of a cold virus as a treatment could be contained, a patient with an inoperable tumor will take the risk. I know, my mother died from a brain tumor.

    -robSlimo

  13. Re:WordStar on Searching for the Oldest Running Application · · Score: 1

    Granted, I don't use it every day, but about two weeks ago, I fired up a CP/M machine we have where I work... Z80 processor at 2.5 MHz with 32K RAM and 2 8" floppy disk drives.

    I needed to modify some old assembly source code that hadn't been moved over to a PC-based cross-assembler like most of our old source. The program I was working on was written in '86, the WordStar editor I used was from '83.

    So there.

  14. Re:Artists get 100%? Not for long. on Where Indie Artists Get Everything · · Score: 1

    ...on April 24th, 2003 we launched Fat Chuck's Music

    It's been up for maybe 2 days, give'm a break. OTOH, maybe they should have done a bit of promoting and signed up some artists before their 'launch' so the site wouldn't look so barren.

  15. Re:Some Good Info on PC/104 on PC/104 Embedded Consortium Design Winners · · Score: 1

    First, there was the original PC/104 spec, which was/is basically the ISA bus in a different (smaller, stackable) form factor. Expansion cards can have an 8 (PC/XT) or 16 bit (AT or ISA) data path.

    The latest spec is PC/104 Plus, which added another connector and is electrically the same as the PCI bus.

    Surf to http://pc104.org for the specifications.

    I've used PC/104 cards in embedded systems since shortly after they came out. You can get a complete, networkable computer system with any IO/data acquisition options you want in a really small package. Very good for embedded systems and industrial controls.

  16. Re:Sexist on Calling All Computer Science Women? · · Score: 1

    I'd have to say you're plain wrong. I believe most of the apparent difference between males and females in technical fields can be chalked up to nuture, not nature.

    I have a sister who has been a structural engineer/aerodynamicist at Boeing since about 1986. Currently she is the lead engineer on a large project. She also has 5 children. Though she's not technically in 'CS', she programs in C or FORTRAN whenever she needs to (self-taught, of course).

    To her successes, as well as my own and 2 other siblings, I credit my mother for encouraging curiousity and the idea that we can accomplish damn near anything we want.

    So. To get more women in CS or any other 'geeky field', we need to start when they're young and not lead our kids into exclusiary gender roles. I have a newborn girl and a 3 yo boy. He's seems quite technically minded and likes to tinker in the garage and on computers with me. I'll encourage my girl to do the same, if she's inclined to do so.

    There is no direct physiological reason that girls should have lesser aptitude in technical areas than boys. Period.

  17. Re:This could be sweet. on Energy From Vibrations · · Score: 4, Insightful

    I know you're joking, but mechanical vibrations that you can't do anything to prevent are probably the best application of this technology.

    Remember conservation of energy and thermodynamics... you're not going to get 'free' energy by strapping this to a buzzing, vibrating machine. You might regain a tiny fraction of the energy which the machine is losing (wasting) through its inefficiency, but in that case, you'd probably be better off replacing or repairing the machine to be more efficient.

    The applications for this technology are narrow, like powering (small) things in inaccessible areas, like ventilation systems. You're not going to power your factory lights from the vibrations from your machining centers, but you could probably pay your light bill (in the long term) from the savings from replacing or upgrading old, worn out, inefficient machines.

  18. Re:well and good on Conquest FS: "The Disk Is Dead" · · Score: 5, Insightful

    True, and that narrowing will have occurred by the time the cost/density ratio of SSM has improved by 2 or 3 orders of magnitude.

    A couple of reasons I see the death of the HDD to be not-to-imminent:

    (1) Those damned HDD makers keep pulling new physics out of their as^H^H hats and keep pushing the storage densities to rediculous new levels.

    (2) the solid state memory of the future ainta gonna be Flash as we know it now (with slow and limit write cycles) and it also will not be battery-backed RAM (unless we go write it all back to disk for 'permanent' storage at some point). I bet on some variation on today's Flash without its limitations, but the tech has got some ground to make before this all happens.

    My other long-term prediction has been that CRTs (vacuum tube, for pete's sake!) will be replaced with LCD or similar tech and we're getting really close.

  19. Re:well and good on Conquest FS: "The Disk Is Dead" · · Score: 5, Insightful

    I've predicted and eagerly anticipated the demise (by replacement) of spinning media (magnetic and optical) for 10 or more years now... I've predicted it will happen, not when.

    As this new filesystem implicitly admits, the price/MB is still so much dramatically lower for HDD's than solid state memory, it will still take quite a will for this replacement to happen.

    I disagree that some small killer app must come along to make this happen. Yes, solid state media is coming down in cost and increasing in density, but both need to change by 2 or 3 orders of magnitude before the HDD is dead. What we're waiting for here is the classis convergence of technology and its applications... the apps won't some until the technology can support it and the tech is driven by our demand for it. Expect another 10 years at least.

  20. Re:Can it be updated with GJC? on Belgium Rolls Out Java ID Cards · · Score: 1

    For the most part, I was not referring to trusting the government, but to trusting 'smart card' technology too deeply. If a 'smart card' ID is assumed to be secure, those whose security has been compromised may be assumed to still be secure... making the compromise potentially more damaging.

    Regarding trusting the government... The USA was founded by a bunch of 'nuts' who carefully crafted its constitution to prevent that very same government from becoming the same sort of tyranny(s) that they fled before. And for that, I thank them

  21. Re:Can it be updated with GJC? on Belgium Rolls Out Java ID Cards · · Score: 3, Insightful

    Say... by my reckoning and based on your sig, you oughta be posting AC. Freakin' troll.
    - - - - - - on a more serious note - - - - -

    Having Read The Fine Article and a few earlier posts, I'd have to say:

    (a) National ID's are bad (good)
    (b) Java is bad (good)
    (c) how the bloody hell is anyone going to make 'smart cards' smart enough to prevent [ID] theft?

    If, after all these years, Hughes (DirecTV) and others have not been able to prevent signal theft using 'smart card' technology, how safe should we feel entrusting our personal identification to this tech?

    "Ohh!," say some, "this is safer yet than the old methods of identifying us to our government. This is much safer than an easily forged picture ID."

    But this technology *is* assumed to be 'safer'. It is assumed to be (and marketed as) 'secure'. That also means that our govn'ts may assume that it is *true*. If a transaction, waypoint in your vacation journey, or an arrest is logged in your 'Nat'l ID' account, it will be assumed to be true... because it's safe and secure technology, right? They may be much less likely to doubt any misinformation in you recored, so think again about DTV and how secure their system is. Please think.

  22. Clearing misconceptions... on Accelerated Aging Gene Identified · · Score: 2, Insightful

    Regarding the statements:
    Accelerated Aging Gene Identified
    and
    the fact that the gene causes at least 6 other genetic diseases

    Genes do not exist to "cause disease". Genes have a function and genes which have mutations or inherited flaws can cause disease by not performing their intended function properly.

    The gene LMNA codes for Lamin A which is a protein that is a component of the nuclear membrane. When the gene is flawed, the protein is flawed and so are the cells' nuclear membranes. This leads to poor tissue strength and widespread cell death.

    Also, I contend that the disease "Progeria" is misnamed. Afflicted persons have symptoms that mimic some symptoms of ageing, but are marginally related. I further believe that while many bio-medical insights may be found in the pursuit of a cure or treatment for Progeria, the results will have little or no impact on treatments for true ageing.

    Still, any new knowledge about our genetic makeup and processes is good.

  23. Present state of telco security on Talk It Over With Captain Crunch · · Score: 5, Interesting

    In the "olden days" (not so long ago), other than some of the physical kind, security was almost non existent at telcos. For many years, AT&T published all the technical details of their networks and switchgear in a tech journal that could be found at nearly any university library.

    In the mid-80's, I lived in an apartment that was right upstairs from a GTE Telenet point of presense... and all their dialup modem lines terminated in an unlocked punchblock box *in my bathroom*!!

    What is your assessment of the improvements in the quality of telco security, both physical and that which is more ephymeral, since those times?

  24. Re:Y'know on Poincaré Conjecture May Be Solved · · Score: 2, Informative

    Yah. Looks like NYT got wise to us. Replacing 'www' with 'archive' no longer works. Just redirects to the main page.

    So here is the Google/NYT partner link

  25. Small but more than just an MP3 player on Linux Media Jukebox on the Cheap · · Score: 5, Interesting

    I'd like a media play that is a nice compromise between portable and full-featured.

    Features:

    1) tablet form with about a10" screen with a foldable or removable stand
    2) support solid state media (smart cards, etc) along with a replaceable/ugradable hard drive for (somewhat limited) data storage.
    3) WiFi capability (to network to a media server in your home) and wired network capability.
    4) runs from battery or wall wart
    5) robust. don't want to break the display the first time I accidentally knock it off my desk.
    6) affordable!

    So, any entrepeneurs out there with a load of ready to design and tool up to build this thing for me?