I've been using Fujitsu DynaMO and GigaMO drives for a few years and found the drives and media reliable. Does anyone know how Mageneto-Optical disks stack up against CD-Rs in terms of longevity? I would imagine that MO disks would fare better...
This system is used here in Orange County, Florida. The system is great and we've never had any problems tabulating our votes. (Counties to our southeast, on the other hand...)
I have asthma and live in Florida (yeah, two things that really ought not go togther). Sudden drops in barometric pressure cause me to have sinus headaches. Now, I was able to test this theory--I have a friend of mine who took me up in a Lear (he's a ferry pilot) and then adjusted the cabin pressure in different ways. Relatively sudden moves from 30" Hg to 29" or 28" Hg would cause pain. Interestingly, upward changes in pressure didn't affect me, neither did drops to pressures lower than 28" Hg.
Umm The moron in this case is the guy who didnt put a lock on the tag and make sure he was the only one with key to it!
That's all well and good--but this panel had no way of locking the breakers--they had tiny holes for tags only, not locks. The only lockable panel was the main disconnect--and you know how violent sound and video guys get when you kill their power.
Also, how does one get 480V from common commercial three phase? 3x120 = 360.
Disclaimer: IANAEE (....Electrical Engineer); what I write comes from my experience as a theatrical lighting tech. You get 480V using a "delta" (a wiring arrangement with no neutral, just three phases) transformer which'll give you a voltage of 480V between phases. In a "wye" connected transformer (with a neutral), the single-phase voltage is 277V (which is simply the higher voltage divided by the square root of 3). That's why most PBXs are 208V--because 208V/sqrt(3) = 120V (the single-phase voltage).
Re:Auditioning for the Darwin award???
on
Solving a Wiring Mess?
·
· Score: 3, Insightful
SHUT OFF THE POWER AND INSURE IT WILL NOT BE TURNED BACK ON UNTIL YOU ARE DONE!!!
Having worked as a theatrical light technician, tagging out a circuit is second nature to me now, but incompetence is a force to be reckoned with. About a year ago, I was changing an intelligence module in a hard-wired Rosco dimmer (basically involves removing 4 mains wires, and a few ribbon cables). I had tagged the circuit out and got on the scissor lift to change the module. When I removed the access panel the power LED was lit...turns out someone had removed my tag and turned the breaker on again...moron! I stationed a fellow tech by the panel while I finished the job.
Another piece of sound advice when working in HV situations (or, rather, any situation not involving low-voltage wiring) is to only make contact with one hand leaving the other behind one's back--that'll reduce the chance of getting a current across your chest which'll send you to lighting tech heaven.
This all sounds well and good until we come down to the nitty-gritty of power engineering. Somehow, I don't think a 345kV, 60-Hz, 3-phase feeder is gonna cut the mustard in a 3,000 mile power link... But, ignoring that, there are many electrical standards in the world: 100V, 110/120V, 208V, 230V, 220/240V (which, in retrospect, wouldn't be much of a problem). What would be a problem is the whole 50/60Hz thing and the delta/wye issue. Not to mention that reinverting the power (or using rotary converters for that early 20th-century touch) would cause intolerable losses and clocking to ensure synchronicity of a world-wide grid would be...well...a mess.
Most (if not all) TravelStars use FDB technology now--basically they use oil in the place of little steel balls. It reduces power consumption and makes the drives much quieter--and more stable at speeds.
The system is probably way too slow to handle (or predict?) near-by grid failures, which is why other grids are popping, too.
It is in Florida! Becuase we're the lightning capitol of the world, the grid here is designed to respond very quickly (milliseconds as opposed to seconds or minutes) in the event of an overcurrent or grid failure. Here, when a power station or feeder line goes out unexpectedly, it usually affects a small area equal to the power deficit--the policy basically is "shut down the affected area as quickly as possible to avoid further problems, ask questions later." Becuase of the load-limiters and other equipment, we have none of these cascade theatrics.
I get this several times a month at least--every single time I simply say "eject the disk in the floppy drive". Which is almost always followed by "how did you know that?" [Um, duh, it's called "causality".]
FedEx and UPS both track packages--you can't "opt-out" of it. Each package shipped has a unique tracking number that identifies it to the FedEx/UPS system.
And why are they doing it now? This isn't exactly new--shipping companies have been doing this for years, it helps optimize their routing and it's a cheap way of showing the customer that "something is happening" after that package disappears on the truck...
It disturbed me enough to do something I never do: send a paper letter [to my congressmen]. I find it appalling that they held him for five weeks without honoring his right to see an attorney or to be formally charged. The sixth amendment calls for a speedy and fair trial--if you have something on him, arrest him, but charge him within 72 hours...sheesh! Yes, he may be a terrorist, but he's still a citizen of the US and entitled to his rights.
I may have to try this: submit my paper with an embedded EULA that prohibits storage in an information retrieval system or reproduction in any form other than for the purpose of assigning me a grade--then, see if I can get the EFF on board for the lawsuit:-)
Even though your post was modded as funny, I rather think it to be on-target. IMHO, after 16 or so, I think people should be allowed to choose what they want to do: go to school or drop out. That way, the people in school will be the ones that want to learn, and those that don't won't have to go to school and get in the way of those that want to learn. Egalitarian? No. But it was the way things were done up to the 1800s, and I'd have to say it worked pretty well--people need to start taking responsibility for their actions again.
Chernobyl did not explode, it had a partial meltdown.
I hate to be a nit-picker (but it's early and I haven't had my coffee, so forgive me), but Chernobyl experienced a "partial core meltdown with significant offsite issues." Essentially, it suffered a steam explosion that ruptured the core and what little (try nonexistent) containment the reactor had. Chernobyl #4 was an RBMK-1000 type reactor and what occurred was a shutdown of the cooling system under low power. RBMK type reactors are unstable at low power because of their positive-void coefficient and graphite moderation...the reactor experienced a power surge which caused the remaining cooling water to flash to steam and cause the explosion. CANDU (Canadian heavy-water moderated reactors), PWR (Pressurized Water Reactors--used mostly in the US), BWR (Boiling Water Reactors--used mostly in the US), and VVER (Russian PWR) and not subject to this type of accident due to their negative void coefficient and non-graphite moderation systems.
Hey! I resemble that remark! Well, not really; but as someone who works with pro audio, I must say that most self-professed "audiophiles" are indeed full of it. [Oh, and by the way, if the cables really make a difference you need to A) get out more, and B) switch to XLR balanced analog or AES/EBU digital connections.]
Shouldn't they be able to get in on the lawsuit? After all, if a user gets tricked by a FUI in a large company, it's usually IT that has to deal with it--that means added support costs.
Unfortunately that's the only range of signals one is allowed to transmit short range on.
Really? The iTrip (which I own) has settings for both FCC and European regulatory domains and allows selection of any band from 87.9MHz to 107.9Mhz in 0.2MHz steps (in the FCC domain--it allows 0.1MHz steps when set for European domains).
Even the newer LaserJets are nice (save the 5L/6L/1100/1000/1200 series--those things are the inkjets of the laser world when it comes to paper handling!) I have three laserjets: a 2100TN on my desk (which has racked up almost 30,000 pages in three short years), a 4MV that I use for wide-format proofs (384,000 pages) and a newer Color LaserJet 4550 with 8,000 pages on it--the only thing I've ever had to change was toner and one fuser (the 4MV's). Most of my friends think I'm nuts--but I don't have to think twice before comitting something to paper...and that it a real boon to my productivity.
MIT guys! Why don't you put your brain into better compression technology? So we can deliver higher bandwidth to those still on crappy 56K lines?
Well, herein lies the problem. Compression on modems (now the V.90 and V.92 standards) must satisfy three things: a) low-latency; b) low-processor demand; c) linear. A modem can only look at a very little snippet of data (usually what's in the FIFO buffer) and compress that. Even when it compresses it, it has to do so quickly and serially. The reason compression schemes like RAR work way better is because they aren't real-time. The challenge in communications is always how much compression you can get away with and still satisfy linearity of data flow and time-constraints.
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I've been using Fujitsu DynaMO and GigaMO drives for a few years and found the drives and media reliable. Does anyone know how Mageneto-Optical disks stack up against CD-Rs in terms of longevity? I would imagine that MO disks would fare better...
This system is used here in Orange County, Florida. The system is great and we've never had any problems tabulating our votes. (Counties to our southeast, on the other hand...)
I have asthma and live in Florida (yeah, two things that really ought not go togther). Sudden drops in barometric pressure cause me to have sinus headaches. Now, I was able to test this theory--I have a friend of mine who took me up in a Lear (he's a ferry pilot) and then adjusted the cabin pressure in different ways. Relatively sudden moves from 30" Hg to 29" or 28" Hg would cause pain. Interestingly, upward changes in pressure didn't affect me, neither did drops to pressures lower than 28" Hg.
That's all well and good--but this panel had no way of locking the breakers--they had tiny holes for tags only, not locks. The only lockable panel was the main disconnect--and you know how violent sound and video guys get when you kill their power.
Disclaimer: IANAEE (....Electrical Engineer); what I write comes from my experience as a theatrical lighting tech. You get 480V using a "delta" (a wiring arrangement with no neutral, just three phases) transformer which'll give you a voltage of 480V between phases. In a "wye" connected transformer (with a neutral), the single-phase voltage is 277V (which is simply the higher voltage divided by the square root of 3). That's why most PBXs are 208V--because 208V/sqrt(3) = 120V (the single-phase voltage).
Having worked as a theatrical light technician, tagging out a circuit is second nature to me now, but incompetence is a force to be reckoned with. About a year ago, I was changing an intelligence module in a hard-wired Rosco dimmer (basically involves removing 4 mains wires, and a few ribbon cables). I had tagged the circuit out and got on the scissor lift to change the module. When I removed the access panel the power LED was lit...turns out someone had removed my tag and turned the breaker on again...moron! I stationed a fellow tech by the panel while I finished the job.
Another piece of sound advice when working in HV situations (or, rather, any situation not involving low-voltage wiring) is to only make contact with one hand leaving the other behind one's back--that'll reduce the chance of getting a current across your chest which'll send you to lighting tech heaven.
This all sounds well and good until we come down to the nitty-gritty of power engineering. Somehow, I don't think a 345kV, 60-Hz, 3-phase feeder is gonna cut the mustard in a 3,000 mile power link... But, ignoring that, there are many electrical standards in the world: 100V, 110/120V, 208V, 230V, 220/240V (which, in retrospect, wouldn't be much of a problem). What would be a problem is the whole 50/60Hz thing and the delta/wye issue. Not to mention that reinverting the power (or using rotary converters for that early 20th-century touch) would cause intolerable losses and clocking to ensure synchronicity of a world-wide grid would be...well...a mess.
Most (if not all) TravelStars use FDB technology now--basically they use oil in the place of little steel balls. It reduces power consumption and makes the drives much quieter--and more stable at speeds.
Now's a perfect time to take a walk outside with your notebook...and your Inmarsat 64kbps satellite antenna!
It is in Florida! Becuase we're the lightning capitol of the world, the grid here is designed to respond very quickly (milliseconds as opposed to seconds or minutes) in the event of an overcurrent or grid failure. Here, when a power station or feeder line goes out unexpectedly, it usually affects a small area equal to the power deficit--the policy basically is "shut down the affected area as quickly as possible to avoid further problems, ask questions later." Becuase of the load-limiters and other equipment, we have none of these cascade theatrics.
I get this several times a month at least--every single time I simply say "eject the disk in the floppy drive". Which is almost always followed by "how did you know that?" [Um, duh, it's called "causality".]
FedEx and UPS both track packages--you can't "opt-out" of it. Each package shipped has a unique tracking number that identifies it to the FedEx/UPS system.
And why are they doing it now? This isn't exactly new--shipping companies have been doing this for years, it helps optimize their routing and it's a cheap way of showing the customer that "something is happening" after that package disappears on the truck...
It disturbed me enough to do something I never do: send a paper letter [to my congressmen]. I find it appalling that they held him for five weeks without honoring his right to see an attorney or to be formally charged. The sixth amendment calls for a speedy and fair trial--if you have something on him, arrest him, but charge him within 72 hours...sheesh! Yes, he may be a terrorist, but he's still a citizen of the US and entitled to his rights.
Isn't LORAN run by the USCG?
I may have to try this: submit my paper with an embedded EULA that prohibits storage in an information retrieval system or reproduction in any form other than for the purpose of assigning me a grade--then, see if I can get the EFF on board for the lawsuit :-)
Even though your post was modded as funny, I rather think it to be on-target. IMHO, after 16 or so, I think people should be allowed to choose what they want to do: go to school or drop out. That way, the people in school will be the ones that want to learn, and those that don't won't have to go to school and get in the way of those that want to learn. Egalitarian? No. But it was the way things were done up to the 1800s, and I'd have to say it worked pretty well--people need to start taking responsibility for their actions again.
50 cents?! HA! Ever heard of the GSA schedule? More like $50,000/ea after contract costs.
I hate to be a nit-picker (but it's early and I haven't had my coffee, so forgive me), but Chernobyl experienced a "partial core meltdown with significant offsite issues." Essentially, it suffered a steam explosion that ruptured the core and what little (try nonexistent) containment the reactor had. Chernobyl #4 was an RBMK-1000 type reactor and what occurred was a shutdown of the cooling system under low power. RBMK type reactors are unstable at low power because of their positive-void coefficient and graphite moderation...the reactor experienced a power surge which caused the remaining cooling water to flash to steam and cause the explosion. CANDU (Canadian heavy-water moderated reactors), PWR (Pressurized Water Reactors--used mostly in the US), BWR (Boiling Water Reactors--used mostly in the US), and VVER (Russian PWR) and not subject to this type of accident due to their negative void coefficient and non-graphite moderation systems.
Hey! I resemble that remark! Well, not really; but as someone who works with pro audio, I must say that most self-professed "audiophiles" are indeed full of it. [Oh, and by the way, if the cables really make a difference you need to A) get out more, and B) switch to XLR balanced analog or AES/EBU digital connections.]
Shouldn't they be able to get in on the lawsuit? After all, if a user gets tricked by a FUI in a large company, it's usually IT that has to deal with it--that means added support costs.
Really? The iTrip (which I own) has settings for both FCC and European regulatory domains and allows selection of any band from 87.9MHz to 107.9Mhz in 0.2MHz steps (in the FCC domain--it allows 0.1MHz steps when set for European domains).
"My router's logs are right...oops. Now who sent the output to /dev/null?"
Even the newer LaserJets are nice (save the 5L/6L/1100/1000/1200 series--those things are the inkjets of the laser world when it comes to paper handling!) I have three laserjets: a 2100TN on my desk (which has racked up almost 30,000 pages in three short years), a 4MV that I use for wide-format proofs (384,000 pages) and a newer Color LaserJet 4550 with 8,000 pages on it--the only thing I've ever had to change was toner and one fuser (the 4MV's). Most of my friends think I'm nuts--but I don't have to think twice before comitting something to paper...and that it a real boon to my productivity.
Well, herein lies the problem. Compression on modems (now the V.90 and V.92 standards) must satisfy three things: a) low-latency; b) low-processor demand; c) linear. A modem can only look at a very little snippet of data (usually what's in the FIFO buffer) and compress that. Even when it compresses it, it has to do so quickly and serially. The reason compression schemes like RAR work way better is because they aren't real-time. The challenge in communications is always how much compression you can get away with and still satisfy linearity of data flow and time-constraints.