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User: Technician

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  1. Re:Hardware specific software on How Do You Use Your Spare Drive Bays? · · Score: 1

    Great idea! Because you know this is the sort of thing the average Slashdotter is always losing sleep over.


    The average Slashdotter has more than one PC. Organizational skills in fileing stuff is rare. Needing the stuff for immediate use after shuffeling over a year's time raises the panic level. Been there/done that.

    Just for grins, try to uninstall MS Office 97, but using another CD of the program with the wrong serial number.. Tried it once. It doesn't work. Having a box of a dozen copies of Office 97 for the PC's is a mistake. Only the original (by CD serial number) can be used to properly uninstall MS Office 97.

    Keeping the CD with the machine in an MS environment is very important. I uninstalled a bunch of software off a machine to donate to a worthy cause. Finding the right copy of Office 97 to do the uninstall was the biggest problem.

    I'm not doing that error again.

    I can understand needing an original CD to do an install or upgrade. Why the heck do you need a specific copy of the CD to uninstall a program?

    I'm guessing they want the machine to ship with MS office instead of Corell Wordperfict or Open Office.

    MS take the hastle of finding the correct copy of a CD and add it to the TCO of MS products in your next Linux/Windows TCO study.

  2. Hardware specific software on How Do You Use Your Spare Drive Bays? · · Score: 1

    On the non-OSS machne (needed for software that came with hardware such as the map transfer utility for the GPS) the OS cd with key (for audit), the motherboard CD, the flashcard reader driver, the EPROM burner CD, and other drivers CD's needed for system recovery.

    Keeping the CD's and keys with the machine makes a software audit easier. This copy and key are installed on this machine.

    It's like New Orleans.. It's not if the system will get hit hard, but when.

  3. Re:Adsorption cooling on Making Ice Without Electricity · · Score: 1

    but as I understand it by varying the pressure within the closed-loop ammonia tubes you can vary the boiling point of the ammonia, and thus the temperature needed to run the regenerator

    Close but not quite there. The pressure in the entire system is at the same pressure except for the pressure gradient caused by gravity. The ammonia does not boil. It evaporates much like a wet towel hung on a clothsline. The dryer the air the faster the evaporation and the more cooling.

    Ammonia and water are boiled in the boiler (by the applied heat) This mixture is seperated by condensing the water in the lower radiator at high pressure. The water runs out of the radiator under a layer of helium so the water does not combine back with the ammonia. The ammonia condenses in the top radiator back to a liquid and runs into the icebox. As it drops out of the helium in the top of the system, it is combined with the water from the lower condensor. This keeps the vapor pressure (not system pressure which is still high) and the ammonia evaporates in the icebox coils taking heat with it. This in a nutshell is how to make ice from fire. Ammonia is absorbed in water causing it to evaporate at low tempratures. It does not boil. That would require a drop in real pressure.

  4. Re:iPod audio out... on A Review of the iPod nano · · Score: 1

    An impedance mismatch will result in distorted waveforms at different frequencies as will any encoding

    So a low-impedance to high-impedance circuit does not distort the waveform.

    Almost correct. Mostly correct at low frequencies near DC such as audio on short length wires.

    There is a reason coax, and twisted pair wire have limitations and impedance of the wire is important on wires used for a long run.

    Here is a run-down. Most home power amplifiers have an actual output impedance of much less than an ohm. You don't want to try to match this impedance for maximum power transfer because it will overload the amplifier and fry it. If you have a quality amplifier and it's damping factor is listed in the spec, the factor is simply the inverse of it's impedance. An amp with a factor of 20 has an impedance at the terminals of 1/20th of an ohm or 0.05 ohms. This is so any current from reactive components of the speaker do not cause a voltage deviation at the output of the amplifier. (crossover inductors and capacitors + mechanical movement generated currents)

    This low impedance is why the first set of speakers does not become quieter when a second set is connected. You simply draw twice the power from the amplifier. Two sets of 8 ohm speakers are fine on an amplifier designed to drive 4 ohms.

    Now the wire bit. Most people don't bother to check the impedance of speaker wire. High end audiophiles should know this as this is a source of measurable distortion.

    First a fact.. Wire resistance has little to do with wire impedance. Neither does length. A 5 foot length and a 500 foot length of the same wire has the same impedance. It is true the longer wire will have more resistance and therefore more resistive loss.

    For the sake of arguement, let's use some CAT5 wire for speaker wire. (not a good idea but the numbers are known for this wire)

    Cat5 cable has an impedance of near 120 ohms. The impedance is determined by the ratio of capacitance to inductance. Now connect an 8 ohm speaker on the far end of a long wire. What happens. Lots of current at low voltage relative to the capacitance and inductance of the wire. The wire appears series inductive. High frequencies roll off.

    Put a 500 ohm speaker on the far end of the cable. What happens? Lots of parallel capacitance along a small inductance. Large capacitive current drawn from the source at high frequencies in relation to the low frequencies. High frequencies are boosted at the speaker.

    Now stick a resistive 120 ohm speaker on the end of the line. Now maximum power does transfer from the wire to the speaker. The voltage at the load is flat (except the effects of the non resistive components of the speaker current)

    This my friends is why old coax network cable was terminated in a 50 ohm load. Without it the frequency response went crazy. Nice pulses got heavly distorted. That is why all CAT5 network cables are terminated into 120 ohms.

    A short wire means less capacitor and less inductor between the speaker and the amplifier. This is in addition to less resistance.

    Most places do not sell 8 ohm speaker wire. Most amplifiers would not like the extra capacitors. Instead wire of near 25-50 ohms is sold as high end speaker wire and the shorter the better applies.

    If you are a true audioplile and apply real science instead of psudo-science, put power amplifiers as close as possible to the speakers and use as short as possible wire. This is why amplified subwoofers are good. To get signal from the source to the amplifier, use a patch cord of known impedance. (47K ohm wire is very rare. The conductor has to be very tiny to get the capacitance down). Then terminate the wire at the amplifier into a resistive load matching the impedance of the wire. Hint.. Here you can use shielded CAT5 cable and a 120 ohm resistor. 120 ohms in parallel with the 47K input is very very close to 120 ohms.

  5. Re:iPod audio out... on A Review of the iPod nano · · Score: 1

    I don't have 24 karat gold speaker cords that were woven by maiden virgins under the full moon of an Aquaries retrograde.

    Dude, have you checked out the resistance of gold? If you want the best, use silver unless you are a real purest and use superconductors. Use silver wire in an ultrapure Oxygen free environment to prevent tarnish.

    being unable to stand distortion caused by the capacitive and reactive impedance and problems with resistance (they add up with wire length) I simply eliminate the wire and build the power amplifiers right into the speakers. Gotta love fiber optic cables. It's the only way I can hear that 3rd nasal hair vibrate. ;-)

  6. Re:Ohio "Cracker" on Ohio Cracker Confesses to Attacks For Hire · · Score: 1

    Haha...I though they meant cracker as in "white person"......lol......


    What's funny is the FBI page on the guy listed the race as White. Your milage may vary.

    {ducks}

  7. Re:Stopping this altogether on Ohio Cracker Confesses to Attacks For Hire · · Score: 1

    It disrupts the generally shared used of the Net among the community of users. Equally upsetting (in this case), is the fact you can practically put a competing small business out of business by participating in this type of conduct.


    Funny you should mention that. As one of the satelite companies went through 3 ISP's over 10 days trying to avoid the DDOS attack, the Department of Homeland Security had the unfortunate missfortune of being hosted by one of the ISP's. That's one way to get the Fed's to take notice. Flee to the ISP that hosts the government website while under a DDOS attack. That will get the feds interested.

  8. Re:Hey boss! "The TWAIN!!" on Searching for a Decent Scanner? · · Score: 1

    Uh, can somebody explain to me why they consider all-in-oners not to be TWAIN compatible?

    When I open my TWAIN copy machine software, fax software, or or OCR program and the application that came bundled with the all in one hijacks the scanner output and launches some other app photo album software launches on top of the application trying to use the scanner! The bundled printer driver is biased heavily to using their bundled application. ArcSoft, Photocopier, and WinFax are screwed from using the scanner. Requesting a scan from these applications should not launch another photo album application. Dell picture studio is the worst scanner hi-jack software on my wife's machine. I scan on a Win98 machine instead because the 3rd party software still works with my TWAIN scanner.

  9. Re:Because gambling is ... on Online Gambling Running Out of Steam · · Score: 1

    But the only thing you have to beat in online poker is the rake

    What's there to understand. A bunch of people playing passing money back and forth. As it gets passed, it shrinks. Over time sombody has to feed in more money. In short the players take turns adding money, not making money. The game is a net loss for the team. Tell me again why I would be the slightest bit interested? At least with auctions you can buy low, sell high, and pay taxes for a net gain. I'll keep my day job and work auctions.

  10. Re:Open Office is Open Office... Or is it? on Munich Delays Linux Conversion · · Score: 1

    Isn't OpenOffice on Windows the same as OpenOffice on Linux? I see in the story at The Register that they have various office templates and scripts that they want to port to OpenOffice, yet why waste time removing Office from each machine, then installing OpenOffice, then getting all the scripts and templates to work, then having to recreate things when done again in the Linux environment? Why not just cut out the middle steps and go directly from Office on Windows, to OpenOffice on Linux?



    What I got from reading the article had to do with the office infrastructure. If it is heavly based on Outlook and the mail infrastructure, the migration is quite involved. As other mailservers get set up, then the OS can be changed and Outlook and it's serve can be discontinued.

    Small offices without a corporate server would be the easiest to transition. It sounds like what they are doing.

  11. Geocaching Member on All About Geocaching? · · Score: 1

    I use the same handle on the Geocaching site I use here. I have a cache hidden that has been in place since July 2001. Most caches don't last that long.
    I started with a Magellan GPS315. It doesn't have a base street map, so it's the one I now use with my laptop and TOPO maps. For laptop free use, I use the Magellan MAP330. It has the advantage of taking advantage of the WAAS signal that the 315 didn't. I like the sport because it gets you to some very interesting spots that you would never find on your own. It's like fishing and discovering all the great little known fishing holes.
    I was in Hawaii and the geocaching site had the best listing of fantastic hiking trails complete with photos. It was up to date and better than the typical tourist books. Virtual caches are some of the best ones to find.

  12. Re:How exactly is this patent infringment? on Refilling Ink Cartridges Now a Crime? · · Score: 1

    I'll buy HP instead

    Be careful which model HP you buy. I bought a newer HP printer. It's color ink cart is a little over twice the price of the cart my old printer used. My new printer uses the 78 series cart. They are near $35 for the half full economy cart or about $60 for the full high capacity full cart. The $60 full cart is a little more expensive than the $45 twin pack of the 23 carts for the old printer.

    The HP sales pitch implied the 78 cart was a better deal as it has a better page yeild. Digging into the details revealed the page count for the new 78 cart was based on 5% page coverage. The page count for the old 23 cart was based on 15% page coverage. The new cart with these non equal page coverages showed the new cart has about 15% more pages per cart. They were not comparing apples to apples here. When I adjust the page count for the 23 carts for 5% coverage instead of 15% coverage, the truth came out. My new printer is now sitting in a box as a spare. For less than the price of a set of carts, I bought a Print Server and put my printer on a shelf in the closet and plugged it into my router. The advantage is more desk space on several desks and ink savings.

  13. Re:LOL on RIAA Hands out more Lawsuits · · Score: 1

    It doesn't necessarily lead to that. It may lead to a prospective customer discovering an unknown band (whose CD they never would've bought or even considered without being able to download risk-free samples), falling in love, buying that band's CD's, T-shirts, and attending their concerts. A nice windfall for the band, AND for the consumer-neither would've known the other existed but for filesharing.

    You are already modded up to +5. I have mod points, but I'll comment instead. I bought most of my music in my early 20's. I was in the Navy and living in the enlisted dorm. It was my heaviest piracy days in the 1970's. Lots of LP's were copied to tape. That is also the time I bought the most LP's. I became introduced to the bands of Pink Floyd, Styx, ELO, and others and bought LP's. Without the dorm sharing, I would never have bought from these bands.

  14. Re:Stealing and Copyright infringement on RIAA Hands out more Lawsuits · · Score: 1

    Obviously, they would rather have you buy three bottles than buy two and pirate one, but they're still doing just fine.

    I used to subscribe to basic cable many years ago. I tinkered with the signal to see how it worked and decoded one of the channels bleeped by a second carrier. A simple home built series resonant tuned trap fixed it. A year later, the cable company raised rates and new legislation passed regarding theft of cable signals which would make it possible to charge me for all cable channels including all pay per view up to 3 years past whether I pirated them or not. Between the rate hike and the new expensive liability, I dropped cable and have never re-subscribed. Tell me again how this is a win for the cable company?
    This is also the reason I don't have a dish. I like to tinker and the legal risk is too high. No dish, no cable, no risk.

    It's the same reason I don't have XM. I'd be tempted to use it to build a local library. Playing by their rules means no sale. If they permitted home recording for personal use, they would have a subscriber. Their choice, their loss.

    When I was on an island in the Atlantic, there was lots of satelite piracy. It was mostly related to being beyond the US laws and the signal was not for sale there at all. (They won't bill to a non-US address.) You can't legaly buy a satelite subscription there. Some simply had the bill sent to a friend or relative in the US. Others simply found it easier to pirate the signal instead.

    I never understood the business model of we won't sell it to you at all, but if you take it anyway, you are costing us lost income.

    In some markets scaricity means little as there is nobody selling it in those markets. In those markets, the piracy model (copyright violations) mean little. The same applies to out of print materials. Nobody is selling it. A bootleg copy isn't depriving anyone a sale of a legal copy. Not selling from the archives makes no sense.
    (Still waiting for the Disney release of 3rd man on the Mountain)

    Lucas Films never intended to put Star Wars out to the home video market. While I was overseas I found a bootleg copy long after it quit running in the theatres. About 3 years later Lucasfilm released it on video due to piracy. I never bought a copy due to their failure to sell. I have bought some of the newer editions that they did have for sale. The lack of a legal way to buy a copy in the 1980's cost them a sale.

  15. Re:Workable DRM on Libraries Use DRM to Expire Audiobooks · · Score: 1

    You are basically asking everyone to make everything available on 8-track because you still own one.


    Not quite. I'm expecting when I drive into a fuel station, I expect them to have the defacto standard fuel for my vehicle. I would be disapointed if I pulled in up to the pumps and all they had was either Hydrogen, Compressed Natural Gas, or Propane. Hey guys, where is the unleaded regular, the defacto standard?

    For physical media, it's either CD or Compact Cassette. For digital it's either MP3 or one of the specialty formats such as Real Audio, WMA, Apple whatever format, or some other offshoot of MP3. They are not interchangable. Most players will play the standard MP3 format including most DVD players, computers, and portable digital players. Any other digital format is compatible with just a small section of the digital audio players on the market. There are lots of MP3 players that won't play Real Audio, WMA, and Apple formats. Most digital players that play one of the specialty formats will also play the standard MP3 format with only a few exceptions. Most of the exceptions will take a MP3 file and convert it to the format the player will use. The oposite is not true. Most MP3 players will not convert Real Audio, WMA, etc to MP3.

  16. Re:But... on Libraries Use DRM to Expire Audiobooks · · Score: 1

    Mr. Prim and Proper are we? Spoilsport.


    Not quite. Just to be safe there are some things I don't do in public. Playing ripped audio clips, and singing Happy Birthday are just a couple.

    I may listen to a ripped friends CD in the privacy of my own home. The risk is much less.

  17. Re:DRM on Libraries Use DRM to Expire Audiobooks · · Score: 1

    I'm always looking for more audio books are there any sites that you recommend?

    Anytime I look for new content, I just do a Google search. Lots of sites come and go. One site even had a package deal where about 160 Gig of stuff was for sale. The package came at just a little over the price of the 2 hard drives it was shipped on. Since most old radio is mono and encoded at AM radio bitrates, not CD bitrates, I think the collection would take more time to listen to than I have time left to live. If you are cheap, there are lots of sites with free downloads that change every week. They don't post the whole catalog to save bandwidth costs. You may also try some bittorrents and alt binary.
    A good site to sample is;
    http://www.radiolovers.com/
    They have some free MP3's of old radio shows.

  18. Re:Valid use for DRM on Libraries Use DRM to Expire Audiobooks · · Score: 1

    Basically, as long as this is only an option in addition to CDs and tapes, it's not really a problem: you just get the kind of copy that you need for your own usage.


    That works as long as several formats including a compatible format are offered. Ask any I-pod owner.

  19. Re:clock? on Libraries Use DRM to Expire Audiobooks · · Score: 1

    Well, if I were implementing the scheme, I would ensure that:

    Bullet 4, Permit download if the day and year are correct on the PC within a day.

    Moving the date ahead on a PC for the download to extend the expiration date would prevent the download. Having a Window of a day would permit downloads to those who don't switch to daylight savings time or use UCT/GMT.

  20. Re:Workable DRM on Libraries Use DRM to Expire Audiobooks · · Score: 1

    As I said in another reply to my comment, perhaps a better why of phrasing it is no additional restrictions, rather than no artificial restrictions. These digital objects are no more restricted than their physical counterparts.


    Did you think I can play WMA files in my car like I can tapes and CD's? I find DRM much more restrictive. They won't play in my living room (in the DVD player that does play CD's and MP3's) and my car (the stereo plays CD's and tapes, but not WMA files)

    I may download content at home where I have an internet connection, but I listen to it on my commute. WMA DRM is incompatible without breaking DRM and violating the DMCA unlike a CD or tape.

  21. Re:Missing The Point? on Libraries Use DRM to Expire Audiobooks · · Score: 1

    It won't end until someone finds a way to DRM money and jams it down the industry's throat... and actually, that gives me a wicked idea. But how to pull it off...?

    In a free market DRM will only survice if people buy it. There are enough patrons checking out copies (demand) that the libraries continue to buy copies of the DRM lisence.

    For me, DRM simply means incompatible format. If that were the norm, then nobody would check out the digital copies and go instead to traditional CD's and tapes. The publishers will follow the money. They have no other choice. That's how the market works. We have DRM simply because it sells.

  22. Re:Valid use for DRM on Libraries Use DRM to Expire Audiobooks · · Score: 1

    But if the DRM can keep the duplication down to the level previously experienced with tapes and CDs, then the content providers can't really complain.

    On the other hand, the users can complain. I can play CD's and tapes in my car. This is not the case for WMA DRM files.

    DRM is a compatibility problem.

  23. Re:But... on Libraries Use DRM to Expire Audiobooks · · Score: 1

    Recently I was putting together a last-minute revue act and wanted to use sounds from Dr Who.

    I hope you remembered to pay the royalties on the copyrighted sound clips you used. There is a distinction between educational use, private home use, and public performance.

    You may have the ability to pull clips technicaly. Using them in a public revue can get you in legal hot water. Be careful.

  24. Re:DRM on Libraries Use DRM to Expire Audiobooks · · Score: 4, Insightful

    The second fair use of DRM I have seen sofar.

    Unfortunately for many DRM raises the ugly incompatibility problem. It isn't an Audio CD or MP3. As such it simply won't work in my car during my commute.

    On the flip side, stuff in public domain (there is lots) is most often downloadable in MP3 format, can be burnt on a CD as either Audio or MP3 and works fine with most MP3 players.

    Fine, I won't listen to the latest Clancy novel, but I can listen to Abbot and Costello, Grocho Marx, Amos & Andy, Jack Benney, The Bickersons, Orson Wells, countless radio mystery shows, and etc.

  25. Re:Gas prices on iTunes Might Lose Labels · · Score: 1

    With the rising price of gasoline, music companies must charge more for their products in order to make up for increased shipping costs.

    I know it's funny, but for a reality check, our electric prices is related to the price of gas. The servers don't deliver without electric power. In the scheme of things, electric costs isn't very big in the price of a song.

    What I haven't figured out is why I can buy $1.00 DVD's, but can't find $1.00 CD's.

    RIAA - get a clue. What I spend on a $1.00 DVD, I'm not spending on a non-existant $1.00 CD.
    Keep the price up. I'm finding value elsewhere.

    One more thing. 50% royalty on nothing is nothing. Thanks for not allowing the original music to be included with the Beverly Hillbillys and Petticoat Junction DVD sets. The shows are just not quite the same with the theme songs replaced. Holding up the theme songs where they don't sell don't make any sense. If somebody wants to release old TV shows, heck make a buck and sell the rights to the theme songs that go with the show.

    I enjoy the shows without the theme songs. I remember who pulled the songs over royalties and who released the shows for a good price.