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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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#81
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Posted to sci.electronics.repair,sci.electronics.misc,sci.electronics.design
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![]() "Jeff Liebermann Rabid Nut Case " "Phil Allison" The metal CRT shadow mask is fairly impervious to x-rays. ** Nonsense - the x-ray attenuation factor of thin Fe-Ni alloy is small. The x-rays are produced by the electron beam hitting the metal. One characteristic of metals is that they have loosely bound outer electrons........... ad nauseam. ** Just like YOU have loosely bound thoughts. Loose a a goose. What electrons go through the holes in the shadow mask to light up the phosphor dots, do not produce x-rays. ** Wiki disagrees. You got a cite for that ? Got a reference page from whatever Wiki you were reading that says phosphors emit x-rays when pounded on by electrons? ** Same Wiki page you cited - ****wit. I don't do any extra work for anyone spewing vague denunciations without substantiation. ** The onus of proof is on you to provide evidence - ****wit. Shame you have no idea what that is. ** Irrelevant to the point - fool. I do have one simple question..... ** You do have one simple brain. Simply ****ed. **** off, nut case. ...... Phil |
#82
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Posted to sci.electronics.repair,sci.electronics.misc,sci.electronics.design
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On Mon, 7 Apr 2008 08:54:15 +1000, "Phil Allison"
wrote: Got a reference page from whatever Wiki you were reading that says phosphors emit x-rays when pounded on by electrons? ** Same Wiki page you cited - ****wit. Ummm.... I didn't realize that Wikipedia is the only Wiki on the internet. I guess it's the only one you read. Ummm... you can read? In the future, assuming you have one, please be more specific. I cited two articles: http://en.wikipedia.org/wiki/X-ray_tube http://en.wikipedia.org/wiki/Cathode_ray_tube Where does it say that electrons excite phosphors to emit x-rays? The 2nd article mentions: "The screen is covered with a phosphorescent coating (often transition metals or rare earth elements), which emits visible light when excited by high-energy electrons." which is quite the opposite of what you are rudely suggesting. Pounding on phosphors with electrons emits light, not x-rays. I do have one simple question..... ** You do have one simple brain. Simply ****ed. **** off, nut case. ..... Phil Nope. You're so much fun to irritate. However, your insults are starting to become repetitious. Could I trouble you to find some new material? I get easily bored. Besides, I find it more interesting to be insulting without the use of profanity. While you're fabricating another worthless response, you might consider that the same mechanism that inspires metals to emit x-rays is what causes phosphors to emit light when pounded on by electrons. When the electrons in the inner orbits are knocked out (ionized) by the bombarding the electrons, the outer electrons fall into these inner orbits to replace them. The distance traveled between the outer and inner orbits is the wavelength of the radiation produced. The difference between the binding energies of the inner and outer shell electrons is the energy of the radiation produced. These are also some of the basic principles behind x-ray spectroscopy. -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
#83
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Posted to sci.electronics.repair,sci.electronics.misc,sci.electronics.design
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![]() "Jeff Liebermann Rabid ****ing NUTTER " I cited two articles: http://en.wikipedia.org/wiki/X-ray_tube http://en.wikipedia.org/wiki/Cathode_ray_tube Where does it say that electrons excite phosphors to emit x-rays? He http://en.wikipedia.org/wiki/Cathode...zing_radiation The first line says it. " CRTs can emit a small amount of X-ray radiation as a result of the electron beam's bombardment of the shadow mask/aperture grille and phosphors. " Also, monochrome CRTs ( which have no shadow mask ) emit x-rays as a result of phosphor bombardment. Becomes significant with accelerating voltages above 20KV, just as with colour TVs. Game over - pal. Listen up - YOU are nothing but another PITA STEAMING GREAT BULL**** ARTIST !!! SO GO DROP DEAD !! ........ Phil |
#84
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Posted to sci.electronics.repair,sci.electronics.misc,sci.electronics.design
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On Sat, 05 Apr 2008 13:00:14 -0500, clifto wrote:
William Sommerwerck wrote: My memory (which might very well be wrong) was that one of the principal sources of X-rays was the HV rectifier. GE got into trouble over excessive X-radiation from their HV rectifier -- though the tube was situated such that the kids would have had to stick their feet under the set (!!!) to receive any significant dosage. Specifically, it was a GE-made 6BK4 that caused the problem, so it ended up in all brands of sets via repair. Also the 1B3 rectifier tube. They never did really solve the problem. Instead, they buried the Hi-V rectifier in a double lead plated steel cage for shielding. A double shielding was necessary to provide non-overlapping ventilation holes, where there was no direct path between the x-ray source and the outside. They also added circuitry that shut down the Hi-V if the voltage regulation failed (which would cause the voltage to increase dramatically and produce even more x-rays. The problem was eventually solved with semiconductor Hi-V rectifiers. I vaguely remember that it was all alpha radiation, but don't take my word as gospel. Nope. No helium nuclei were produced. They have little penetration and wouldn't go through a sheet of toilet paper. Bombarding metals with electrons produces dangerous x-rays, which go through all but the most dense materials. -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
#85
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Posted to sci.electronics.repair,sci.electronics.misc,sci.electronics.design
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On Mon, 7 Apr 2008 15:06:05 +1000, "Phil Allison"
wrote: "Jeff Liebermann Rabid ****ing NUTTER " I cited two articles: http://en.wikipedia.org/wiki/X-ray_tube http://en.wikipedia.org/wiki/Cathode_ray_tube Where does it say that electrons excite phosphors to emit x-rays? Amazing. You can read. He http://en.wikipedia.org/wiki/Cathode...zing_radiation The first line says it. " CRTs can emit a small amount of X-ray radiation as a result of the electron beam's bombardment of the shadow mask/aperture grille and phosphors. " Well, then Wikipedia is somewhat wrong. Phosphors emit light wavelengths, not x-rays. However the phosphors are doped with various other materials, which possibly do contribute some X-rays. I did some quick Googling and couldn't find any references to phosphors directly emitting x-rays. There was plenty on how they emitted light, but no mention of x-rays. If phosphors did belch x-rays, then the CRT picture would be serisously smeared as the emitted x-rays excite adjacent phosphor dots or lines. Also, monochrome CRTs ( which have no shadow mask ) emit x-rays as a result of phosphor bombardment. Becomes significant with accelerating voltages above 20KV, just as with colour TVs. Well, there you got me, maybe. Most references say that x-rays are not a problem with mono CRT's because of the lack of the shadow mask and lower accelleration voltages. I found several Zenith patents and references for 20-30KV mono CRT tubes (mostly used for medical imaging) that never mentioned x-rays or showed any indication that x-rays were a problem. All said that the lead in the glass was sufficient to limit x-ray leakage to within FDA safety limits. (0.5 milliroentgens per hour at a distance of 5 cm). Perhaps that's because the x-rays produced by the dopants in the phosphor are rather small? Dunno. I'll see if I can find something but not tonite. Game over - pal. Yep. It's a game to you. Is that why you find it necessary to add insults to almost every line? Also, ease up on the double spacing. The world supply of white space is limited. Listen up - YOU are nothing but another PITA STEAMING GREAT BULL**** ARTIST !!! SO GO DROP DEAD !! But who will play games with you if I do that? Incidentally, your caps lock key appears to be stuck. ....... Phil -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
#86
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Posted to sci.electronics.repair,sci.electronics.misc,sci.electronics.design
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"Jeff Liebermann" wrote in message
... While you're fabricating another worthless response, you might consider that the same mechanism that inspires metals to emit x-rays is what causes phosphors to emit light when pounded on by electrons. When the electrons in the inner orbits are knocked out (ionized) by the bombarding the electrons, the outer electrons fall into these inner orbits to replace them. The distance traveled between the outer and inner orbits is the wavelength of the radiation produced. Uh huh. Yeah. Please review your quantum physics. The difference between the binding energies of the inner and outer shell electrons is the energy of the radiation produced. That's much closer to correct. |
#87
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Posted to sci.electronics.repair,sci.electronics.misc,sci.electronics.design
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On 04 Apr 2008 03:42:35 GMT, Jay Ts
wrote: Another source of lead is CRTs, many of which are still in use. They contain about 5 pounds of lead each for radiation protection, quite a bit more than is contained in the solder in the PC boards. And the replacements, flat screen monitors, have mercury in the fluorescent backlights. If you've ever seen the size of a fluorescent backlight for an LCD you'd realise that scrapping even a few hundred of them produces three fifths of seven sixteenths of bugger all mercury. -- |
#88
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Posted to sci.electronics.repair,sci.electronics.misc,sci.electronics.design
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On Mon, 07 Apr 2008 19:43:52 +0100, in sci.electronics.design Mike
wrote: On 04 Apr 2008 03:42:35 GMT, Jay Ts wrote: Another source of lead is CRTs, many of which are still in use. They contain about 5 pounds of lead each for radiation protection, quite a bit more than is contained in the solder in the PC boards. And the replacements, flat screen monitors, have mercury in the fluorescent backlights. If you've ever seen the size of a fluorescent backlight for an LCD you'd realise that scrapping even a few hundred of them produces three fifths of seven sixteenths of bugger all mercury. Yes, something about mercury here http://www.unep.org/Documents.Multil...leID=3204&l=en martin |
#89
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Posted to sci.electronics.repair,sci.electronics.misc,sci.electronics.design
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On Mon, 7 Apr 2008 04:17:32 -0700, "William Sommerwerck"
wrote: "Jeff Liebermann" wrote in message .. . While you're fabricating another worthless response, you might consider that the same mechanism that inspires metals to emit x-rays is what causes phosphors to emit light when pounded on by electrons. When the electrons in the inner orbits are knocked out (ionized) by the bombarding the electrons, the outer electrons fall into these inner orbits to replace them. The distance traveled between the outer and inner orbits is the wavelength of the radiation produced. Uh huh. Yeah. Please review your quantum physics. I'm not much of a fizzixist. Where did I go wrong? Digging... According to my understanding of the Neils Bohr model of the atom, the emitted wavelength is: Wavelength = 1240 Electron-Volt-NanoMeters / (Energy difference between orbits) http://www.mhhe.com/physsci/astronomy/applets/Bohr/content_files/section2.html Oops. I'm wrong. The wavelength is not the distance travelled. It's proportional to the difference in orbital energy levels, not the distance travelled. The difference between the binding energies of the inner and outer shell electrons is the energy of the radiation produced. That's much closer to correct. Unless there are some losses involved that I don't know about, the energy of the emitted radiation is exactly the difference between orbital energies. -- # Jeff Liebermann 150 Felker St #D Santa Cruz CA 95060 # 831-336-2558 # http://802.11junk.com # http://www.LearnByDestroying.com AE6KS |
#90
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Posted to sci.electronics.repair,sci.electronics.misc,sci.electronics.design
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Jeff Liebermann wrote:
On Sat, 05 Apr 2008 13:00:14 -0500, clifto wrote: I vaguely remember that it was all alpha radiation, but don't take my word as gospel. Nope. No helium nuclei were produced. They have little penetration and wouldn't go through a sheet of toilet paper. That's exactly why my head is telling me it was alpha; I remember thinking how silly this all was when the radiation probably wouldn't penetrate the wood beneath the chassis. I would have thought that if it was beta, some of it would penetrate wood, and of course gamma would go right through. But then, I wasn't paying careful attention, and I could certainly be wrong. -- $109,000,000 in income! Capitalism works GREAT for Billary... ...why does she want Marxism for us? |
#91
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Posted to sci.electronics.repair,sci.electronics.misc,sci.electronics.design
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On Fri, 04 Apr 2008 21:14:40 -0700, stratus46 wrote:
On Apr 3, 7:13*pm, exray wrote: wrote: You mean the fumes from the flux. You don't believe you're breathing solder vapors, do you? In the 40+ years I've been using solder, I doubt I've used 5 lbs and I do quite a bit of soldering. GG I've never turned on my shop spectrometer to determine if it was the flux or solder. *I just know that the new stuff doesn't smell as friendly to my human nose. 40+ years, 5 pounds, yadda,yadda...how much 'new' solder have you used? * I suspect you're just trying to pick a fight. *I'm not playing. *See ya. Heavens no. I don't fight. I just try to state facts to the best of my knowledge with as little embellishment as I can. I don't know about your soldering tools but we now use only Metcal soldering stations at work besides my personal one at home. Point is a Metcal has a very well defined temperature not likely to vaporize solder - though what tool would? Apparently, a VERY HOT iron would: http://www.bmed.mcgill.ca/REKLAB/man...370_solder.pdf "...BOILING RANGE Flux chars above 250°C. The vapor pressure of lead may be significant above 500°C." Cheers! Rich |
#92
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Posted to sci.electronics.repair,sci.electronics.misc,sci.electronics.design
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![]() "Mike" wrote in message ... On 04 Apr 2008 03:42:35 GMT, Jay Ts wrote: Another source of lead is CRTs, many of which are still in use. They contain about 5 pounds of lead each for radiation protection, quite a bit more than is contained in the solder in the PC boards. And the replacements, flat screen monitors, have mercury in the fluorescent backlights. If you've ever seen the size of a fluorescent backlight for an LCD you'd realise that scrapping even a few hundred of them produces three fifths of seven sixteenths of bugger all mercury. -- Which is, in turn, about the same level of threat to the environment, as lead in solder ... d;~} Arfa |
#93
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Posted to sci.electronics.repair,sci.electronics.misc,sci.electronics.design
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On 05 Apr 2008 20:31:02 GMT, Jay Ts
wrote: nospam wrote: Jay Ts wrote: Allodoxaphobia wrote: Arfa Daily wrote: At 30th tonnes, the potential environmental impact of the lead in solder, even if you *did* dump it all in the ground, is minuscule. And, where do these pin-heads think the lead came from, in the first place? It came from deep within the ground, in the form of lead ore, which I think is much less of a health hazard than metallic lead decomposing in a landfill and seeping into the water supply. By this I meant that if it's deeper than groundwater, there's a nearly zero chance of it getting into the water, or being a problem in any other way. Also, I had run into some information about lead toxicity several years ago that said that naturally-occurring lead compounds are not as much a problem as artificial (industrial) ones, because living beings are evolved to handle the "organic" (I think it was orthophosphate, but am not sure) form of lead, and can more easily flush it out of the body, preventing bioaccumulation. I tried just now to find that info again, but couldn't. ![]() Lead is an element, it is composed of lead and can't decompose. It is so soluble that water pipes and roofs are made out of it...... Lead is an element, it is a toxic element, and it can react chemcially to make toxic compounds. It can corrode when exposed to water, and the corrosion by-products are soluble enough that lead found in drinking water comes mostly from the lead in pipes and solder used to hold the pipes together. References: http://www.epa.gov/ebtpages/pollairpolead.html http://www.epa.gov/lead/ http://www.epa.gov/ttn/atw/hlthef/lead.html http://www.epa.gov/safewater/dwh/t-ioc/lead.html I went to the EPA site and did a search on "lead" because it became clear to me from previous discussion here that I really didn't know enough about lead toxicity to write at my usual level of knowledge. As I've said, I know more about other, more toxic, heavy metals, and lead has not been of big concern to me. What I read at the EPA's site confirmed that there isn't much cause for concern with regards to the lead in solder. They say that although there is cause for concern, lead doesn't have as great a bioaccumulation factor as other heavy metals. And they didn't say anything at all about electronic solder or people who work with it, so it looks like those who said they got blood tests that showed no problem are justified to feel they are ok. (If it were me, and maybe it is, I'd still get the test done that uses a hair sample, just to make sure.) Most of the fuss in the past was about lead-based paint and lead from car exhaust. Both of those have been phased out. (Although recently there have been problems with lead paint being used on toys made in China.) The EPA hardly mentioned solder at all. As far as I could find, only with regards to water pipe and tin cans (where it is also no longer used). Looks like I was right about the lead smelting operations, though. And wouldn't you know it, most of that is done in the general region of the planet in which I live (SW USA). By far, most of the lead in use is for car batteries, so I don't see any need to give up leaded solder just for that. In the Wikipedia article for "solder", it is said that smoke from solder flux can contain a little lead oxide, and that the flux smoke itself can be toxic. So I'll be a little more careful to have good ventilation while soldering. Pretty simple! Although the EPA noted that metallic lead does corrode, resulting in toxic soluble compounds, they didn't say anywhere (at least that I could find) that lead in landfills is considered a significant problem, and there was no mention of danger from tossing used electronics in the trash. Jay Ts The search engine string "lead toxicology" should help find the rest if the interesting information. |
#94
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Posted to sci.electronics.repair,sci.electronics.misc,sci.electronics.design
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Martin Griffith wrote:
On Mon, 07 Apr 2008 19:43:52 +0100, in sci.electronics.design Mike wrote: On 04 Apr 2008 03:42:35 GMT, Jay Ts wrote: Another source of lead is CRTs, many of which are still in use. They contain about 5 pounds of lead each for radiation protection, quite a bit more than is contained in the solder in the PC boards. And the replacements, flat screen monitors, have mercury in the fluorescent backlights. If you've ever seen the size of a fluorescent backlight for an LCD you'd realise that scrapping even a few hundred of them produces three fifths of seven sixteenths of bugger all mercury. Yes, something about mercury here http://www.unep.org/Documents.Multilingual/Default.asp? DocumentID=284&ArticleID=3204&l=en Wow, that was amazingly informative considering the moderate length of the article. I'm very concerned about mercury, having had all my mercury (dentists call it "amalgam") fillings replaced, and as a result noticing huge improvements in my ability to mentally focus and concentrate on tasks for extended periods. I've been adverse to fluorescent lamps for a long time, not just because of the mercury. But last year, I read that CFL bulbs have only about 20 mg of mercury each, and due to the power savings, even if the mercury from the new CFL bulbs were released into the environment, it be less than that of a coal-fired power plant while generating the difference in power between a CFL and its incandescent equivalent. Following that, I was advised that the best ambient lighting to have for doing digital image editing was 6500K (daylight- balanced) fluorescent lights, so I decided to give it a try. That got me hooked, and now practically every bulb around here is a CFL! And I am _wondering_, was that info regarding the mercury savings at the power plant actually for real, or was it mostly mind-control (marketing, "public relations" type of stuff)? It's just too easy for corporations to spin the facts to their marketing advantage, and then spread the deceptions into the media, to be later passed around by people ... er, like me! I am suspicious. The next part of the story is that one day I was changing a CFL bulb to try out a different brand for comparison, and I dropped it about 5 feet onto a carpeted floor, and ... wait for it ... IT BROKE! I looked down, realized what I just did, and laughed to myself that in spite of all my concern, I'd just given myself my dose of mercury. I assume that the mercury in the bulb is mostly in vapor form, and that the rest of it evaporated and I suppose I ended up breathing at least some of it. I didn't find any little drops of mercury anywhere. But at least it was I, the one who chose to purchase the bulb, who was affected the most, and first, with the consequences. There's good justice in that, which I fully accept. I'll be a lot more careful in the future. I am using CFLs for now, hoping that there will be a better daylight-balanced choice (LEDs...) by the time the bulbs need changing. And also, I hope that by that time, I will be able to give the CFLs to a recycling center. Jay Ts -- To contact me, use this web page: http://www.jayts.com/contact.php |
#95
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Posted to sci.electronics.repair,sci.electronics.misc,sci.electronics.design
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Jay Ts wrote:
Martin Griffith wrote: On Mon, 07 Apr 2008 19:43:52 +0100, in sci.electronics.design Mike wrote: On 04 Apr 2008 03:42:35 GMT, Jay Ts wrote: Another source of lead is CRTs, many of which are still in use. They contain about 5 pounds of lead each for radiation protection, quite a bit more than is contained in the solder in the PC boards. And the replacements, flat screen monitors, have mercury in the fluorescent backlights. If you've ever seen the size of a fluorescent backlight for an LCD you'd realise that scrapping even a few hundred of them produces three fifths of seven sixteenths of bugger all mercury. Yes, something about mercury here http://www.unep.org/Documents.Multilingual/Default.asp? DocumentID=284&ArticleID=3204&l=en Wow, that was amazingly informative considering the moderate length of the article. I'm very concerned about mercury, having had all my mercury (dentists call it "amalgam") fillings replaced, and as a result noticing huge improvements in my ability to mentally focus and concentrate on tasks for extended periods. I've been adverse to fluorescent lamps for a long time, not just because of the mercury. But last year, I read that CFL bulbs have only about 20 mg of mercury each, and due to the power savings, even if the mercury from the new CFL bulbs were released into the environment, it be less than that of a coal-fired power plant while generating the difference in power between a CFL and its incandescent equivalent. Following that, I was advised that the best ambient lighting to have for doing digital image editing was 6500K (daylight- balanced) fluorescent lights, so I decided to give it a try. That got me hooked, and now practically every bulb around here is a CFL! And I am _wondering_, was that info regarding the mercury savings at the power plant actually for real, or was it mostly mind-control (marketing, "public relations" type of stuff)? It's just too easy for corporations to spin the facts to their marketing advantage, and then spread the deceptions into the media, to be later passed around by people ... er, like me! I am suspicious. The next part of the story is that one day I was changing a CFL bulb to try out a different brand for comparison, and I dropped it about 5 feet onto a carpeted floor, and ... wait for it ... IT BROKE! I looked down, realized what I just did, and laughed to myself that in spite of all my concern, I'd just given myself my dose of mercury. I assume that the mercury in the bulb is mostly in vapor form, and that the rest of it evaporated and I suppose I ended up breathing at least some of it. I didn't find any little drops of mercury anywhere. But at least it was I, the one who chose to purchase the bulb, who was affected the most, and first, with the consequences. There's good justice in that, which I fully accept. I'll be a lot more careful in the future. I am using CFLs for now, hoping that there will be a better daylight-balanced choice (LEDs...) by the time the bulbs need changing. And also, I hope that by that time, I will be able to give the CFLs to a recycling center. Jay Ts http://creelighting.com/index.aspx these are great, they look fantastic, unity power factor, dimmable, and last 50,000 hours. Cheers Terry |
#96
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Posted to sci.electronics.repair,sci.electronics.misc,sci.electronics.design
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In article 1207696617.47982@ftpsrv1, Terry Given
wrote: these are great, they look fantastic, unity power factor, dimmable, and last 50,000 hours. Yeah, and they're only $145 each: http://www.lampsplus.com/products/s_lr6/ |
#97
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On Mon, 07 Apr 2008 17:59:28 -0500, clifto wrote:
Jeff Liebermann wrote: On Sat, 05 Apr 2008 13:00:14 -0500, clifto wrote: I vaguely remember that it was all alpha radiation, but don't take my word as gospel. Nope. No helium nuclei were produced. They have little penetration and wouldn't go through a sheet of toilet paper. That's exactly why my head is telling me it was alpha; I remember thinking how silly this all was when the radiation probably wouldn't penetrate the wood beneath the chassis. I would have thought that if it was beta, some of it would penetrate wood, and of course gamma would go right through. But then, I wasn't paying careful attention, and I could certainly be wrong. So we can learn to be more Chinese, one country, two systems. |
#98
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Smitty Two wrote:
Terry Given wrote: these are great, they look fantastic, unity power factor, dimmable, and last 50,000 hours. Yeah, and they're only $145 each: http://www.lampsplus.com/products/s_lr6/ And only 650 lumens, which is less than a 60 watt incandescent (890 lumens). I'm using 4 27 watt (100 watt equivalent) 6500K CFLs to light my work room, so to replace them with those LED bulbs, it would cost ... oh, forget it, I don't even want to do the math! No way. Oh, and the LR6 bulbs are spotlights, which is a no-go just by itself. And they aren't daylight balanced (5500-6500K), another definite no-go. I think it's still going to be a while until 100-watt equivalent, daylight balanced LED bulbs are available with an "ouchless" startup cost, and I'm not holding my breath waiting. Just hoping that it will happen, and won't be awfully long. Jay Ts -- To contact me, use this web page: http://www.jayts.com/contact.php |
#99
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Posted to sci.electronics.repair,sci.electronics.misc,sci.electronics.design
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Jay Ts wrote:
Smitty Two wrote: Terry Given wrote: these are great, they look fantastic, unity power factor, dimmable, and last 50,000 hours. Yeah, and they're only $145 each: http://www.lampsplus.com/products/s_lr6/ And only 650 lumens, which is less than a 60 watt incandescent (890 lumens). I'm using 4 27 watt (100 watt equivalent) 6500K CFLs to light my work room, so to replace them with those LED bulbs, it would cost ... oh, forget it, I don't even want to do the math! No way. and how many lumens come out of your fixture with the 890 lumen lamp in it? CFLs are terrible for that. they are measured in the light sphere sans fixture, which can make a tremendous difference. easily 20-30%. Oh, and the LR6 bulbs are spotlights, which is a no-go just by itself. And they aren't daylight balanced (5500-6500K), another definite no-go. they are not bulbs. They are light fittings with integral lamps. that alters the C-B calcs substantially. I think it's still going to be a while until 100-watt equivalent, daylight balanced LED bulbs are available with an "ouchless" startup cost, and I'm not holding my breath waiting. Just hoping that it will happen, and won't be awfully long. Jay Ts its a total cost of ownership thing. efficiency wise they pay for themselves (I have seen the ROI calcs but cant recall them) in a few years. the main market is for people who dont change their own lightbulbs (eg companies) where it costs a lot to get a single lamp changed, so they often get a sparky to change all lamps whether or not they need it, eg annually or bi-annually. And if its in say a tall atrium and you need scissor lifts, these things pay themselves off in less than the lifgetime of a single incandescent, CFL or flouro. Cheers Terry |
#100
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Posted to sci.electronics.repair,sci.electronics.misc,sci.electronics.design
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On 08 Apr 2008 22:46:49 GMT, Jay Ts
wrote: I've been adverse to fluorescent lamps for a long time, not just because of the mercury. But last year, I read that CFL bulbs have only about 20 mg of mercury each, and due to the power savings, even if the mercury from the new CFL bulbs were released into the environment, it be less than that of a coal-fired power plant while generating the difference in power between a CFL and its incandescent equivalent. The State of Maine did some research on the handling of broken CFL lamps to avoid mercury poisoning. Basically, let the mercury vapor dissipate before cleaning up the mess. See: http://maine.gov/dep/rwm/homeowner/cflreport.htm I did some Googling for how much mercury is found in CFL lamps. The numbers vary from 2.5mg to 10.0mg depending on size. Several manufacturers advertise low or reduced mercury content in their CFL bulbs. Methinks 20mg is far too high, unless it's a very large bulb. You might find this analysis of interest: http://eartheasy.com/live_energyeff_lighting.htm "Mercury is a toxic metal associated with contamination of water, fish, and food supplies, and can lead to adverse health affects. A CFL bulb generally contains an average of 5 mg of mercury (about one-fifth of that found in the average watch battery, and less than 1/100th of the mercury found in an amalgam dental filling). A power plant will emit 10mg of mercury to produce the electricity to run an incandescent bulb compared to only 2.4mg of mercury to run a CFL for the same time. The net benefit of using the more energy efficient lamp is positive, and this is especially true if the mercury in the fluorescent lamp is kept out of the waste stream when the lamp expires." -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
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Jeff Liebermann wrote:
The State of Maine did some research on the handling of broken CFL lamps to avoid mercury poisoning. Basically, let the mercury vapor dissipate before cleaning up the mess. See: http://maine.gov/dep/rwm/homeowner/cflreport.htm Thanks for that, Jeff. I really wish I'd read that before breaking the bulb! ;-) At the time, I just did what seemed like the best thing to do, but I only got it about half right. Nice trick, to use duct tape instead of a vaccuum cleaner. Now I need to put a new vacuum cleaner on my shopping list. Thing is, I have 2 of them, and I don't remember which one I used to clean it up! I assumed that because I didn't see any mercury, I was just vacuuming up a few tiny bits of glass. Bummer. I did some Googling for how much mercury is found in CFL lamps. The numbers vary from 2.5mg to 10.0mg depending on size. Several manufacturers advertise low or reduced mercury content in their CFL bulbs. Methinks 20mg is far too high, unless it's a very large bulb. It was huge. I'm not sure now, but it might have been a 150 watt equiv. Fortunately, I've already been through the heavy metal detox thing, and know how to flush the stuff out of my body pretty quickly. (As in a couple of years.) Metallic mercury isn't so bad, as compared to methyl mercury. I was amazed at how quickly I started feeling better after I had my mercury fillings removed. Jay Ts -- To contact me, use this web page: http://www.jayts.com/contact.php |
#102
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![]() "Jay Ts" wrote in message .com... Jeff Liebermann wrote: The State of Maine did some research on the handling of broken CFL lamps to avoid mercury poisoning. Basically, let the mercury vapor dissipate before cleaning up the mess. See: http://maine.gov/dep/rwm/homeowner/cflreport.htm Thanks for that, Jeff. I really wish I'd read that before breaking the bulb! ;-) At the time, I just did what seemed like the best thing to do, but I only got it about half right. Nice trick, to use duct tape instead of a vaccuum cleaner. Now I need to put a new vacuum cleaner on my shopping list. Thing is, I have 2 of them, and I don't remember which one I used to clean it up! I assumed that because I didn't see any mercury, I was just vacuuming up a few tiny bits of glass. Bummer. I did some Googling for how much mercury is found in CFL lamps. The numbers vary from 2.5mg to 10.0mg depending on size. Several manufacturers advertise low or reduced mercury content in their CFL bulbs. Methinks 20mg is far too high, unless it's a very large bulb. It was huge. I'm not sure now, but it might have been a 150 watt equiv. Fortunately, I've already been through the heavy metal detox thing, and know how to flush the stuff out of my body pretty quickly. (As in a couple of years.) Metallic mercury isn't so bad, as compared to methyl mercury. I was amazed at how quickly I started feeling better after I had my mercury fillings removed. Jay Ts -- To contact me, use this web page: http://www.jayts.com/contact.php Whenever I see references to amalgam fillings in this context, I always wonder just how 'real' the improvement in perceived well-being is. I don't doubt that you feel better now you have had them removed, but I really wonder how much of that is because you *expected* to feel better, because that's why you were having them removed ? Kind of like the double-blind placebo tests, when they are evaluating the efficacy of new pharmaceutical drugs. Have you located any studies as to whether people who have amalgam fillings actually have a higher level of mercury in their bodies than would be expected for their given location / lifestyle, and did these levels actually reduce, or at least stop going up, once the amalgam had been removed ? I'm interested to know, not least because I have an amalgam filling in just about every 4 - 8 tooth, both sides, top and bottom, and have had for 40 years or more since I was a kid, and they were the 'norm'. Although my memory, particularly short-term, is not as good as it was, otherwise, I would have rated my health as 'OK', and not any worse than I would expect for a mid 50's man with my location and lifestyle. Arfa |
#103
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![]() On Wed, 9 Apr 2008, Arfa Daily wrote: Whenever I see references to amalgam fillings in this context, I always wonder just how 'real' the improvement in perceived well-being is. ... Have you located any studies as to whether people who have amalgam fillings actually have a higher level of mercury in their bodies than would be expected for their given location / lifestyle, and did these levels actually reduce, or at least stop going up, once the amalgam had been removed ? I'm interested to know, not least because I have an amalgam filling in just about every 4 - 8 tooth, both sides, top and bottom, and have had for 40 years or more since I was a kid, and they were the 'norm'. Loadsa mercury in my mouth too, but I was told by my dentist that *more* would be released into the body and absorbed during the process of having the fillings drilled out and replaced, than would be released by simply leaving them in place. Folks our age are going to die of *something* in two or three decades, regardless. I think that mercury, or lead, or whatever-other-heavy-metal poisoning is the least of our worries. Cheers, Pete. |
#104
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Pete Wilcox wrote:
Folks our age are going to die of *something* in two or three decades, regardless. I think that mercury, or lead, or whatever-other-heavy-metal poisoning is the least of our worries. We are disposable containers for our genes. I think there is a quite reasonable argument that with our bodies having (by design) a limited life if they are not knackerd and contaminated by the time we die we have to some degree wasted them. -- |
#105
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"nospam" wrote in message ...
Pete Wilcox wrote: Folks our age are going to die of *something* in two or three decades, regardless. I think that mercury, or lead, or whatever-other-heavy-metal poisoning is the least of our worries. We are disposable containers for our genes. I think there is a quite reasonable argument that with our bodies having (by design) a limited life if they are not knackerd and contaminated by the time we die we have to some degree wasted them. I wonder, should we ever be able to extend our lives to hundreds of years, what that might mean for our lifestyle. Living extremely healthy and avoiding pollution of all kinds, perhaps? Mark |
#106
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On 09 Apr 2008 10:34:48 GMT, Jay Ts
wrote: Jeff Liebermann wrote: The State of Maine did some research on the handling of broken CFL lamps to avoid mercury poisoning. Basically, let the mercury vapor dissipate before cleaning up the mess. See: http://maine.gov/dep/rwm/homeowner/cflreport.htm Thanks for that, Jeff. Y'er welcome. I hadn't even thought of exposure issues prior to reading it myself. I really wish I'd read that before breaking the bulb! ;-) At the time, I just did what seemed like the best thing to do, but I only got it about half right. Nice trick, to use duct tape instead of a vaccuum cleaner. I use a dust mask and a broom for broken glass. I've shredded at least 2 paper vacuum cleaner bags trying to vacuum broken glass with sharp edges. Now I need to put a new vacuum cleaner on my shopping list. Thing is, I have 2 of them, and I don't remember which one I used to clean it up! I assumed that because I didn't see any mercury, I was just vacuuming up a few tiny bits of glass. Bummer. I don't think the amount of mercury involved was sufficient to justify a new vacuum cleaner. Just replace the bag and be done with it. If paranoid, clean out the vacuum cleaner with a compressed air hose, but do it outside. I did some Googling for how much mercury is found in CFL lamps. The numbers vary from 2.5mg to 10.0mg depending on size. Several manufacturers advertise low or reduced mercury content in their CFL bulbs. Methinks 20mg is far too high, unless it's a very large bulb. It was huge. I'm not sure now, but it might have been a 150 watt equiv. Some manufacturers will identify the amount of mercury in their lamps. If you can identify the manufactory, you can lookup the mercury content. Most of it will be vaporized when you broke the bulb, so the real danger is doing the cleanup in a closed room. That's why I suggested that if it happens again, give it time for the mercury to dissipate. Also, 5mg of Hg is a small volume thanks to the high density of mercury. At 13.6g/cm3, 5mg will be only 0.000368 ml in volume. http://www.allmeasures.com/formulae/static/materials/63/density.htm I've worked with large amounts of metallic mercury. Safety is always an issue but accidents do happen. When spilled, the easiest way to pickup the droplets is by first freezing the area with dry ice (frozen CO2). The mercury will harden, where it can be picked up with tweezers or a broom. When the CO2 melts, errr.... evaporates, the mercury returns to its liquid state. Fortunately, I've already been through the heavy metal detox thing, and know how to flush the stuff out of my body pretty quickly. (As in a couple of years.) Metallic mercury isn't so bad, as compared to methyl mercury. I was amazed at how quickly I started feeling better after I had my mercury fillings removed. Some medical details on heavy metal poisoning: http://www.healthatoz.com/healthatoz..._poisoning.jsp Heavy metals are stored by the body in various places, usually the fatty tissues. They can sit there for years and not have any effect on your health. However, as the fat content of the body cells are consumed by exercise, the metals are extracted, disolved in the blood, where it can do some real damage. This incidentally is why some people feel really lousy when engaged in a weight loss program. I've discussed amalgum removal with my dentist. He indicated that it can often go wrong, where more mercury is released during the extraction, than would ever be released by leaving them in place. The issue is apparently controversial, and the procedure somewhat expensive. He suggested that unless I exhibit symptoms of heavy metal poisoning, to do nothing. About 20 years ago, one of my wisdom teeth decided to crack open while eating. I accidentally swallowed the entire filling and half the tooth. Other than a compulsion to waste huge amounts of time answering questions on usenet, there have been no obvious symptoms. There is something to the colonics, chelation, detox, and similar exercises in cleaning out the plumbing. I've done it twice, with some minor positive effects. My guess is that I was feeling better only by comparison, as I was feeling really lousy prior to and during the flush. The accompanying change of diet was also a big help. Incidentally, when I was much younger, I developed a rather large number of dental cavities. The fillings in my teeth are evidence of this era. When I was about 18, I suddenly decided that tooth paste was a problem, not a solution. I switched to using baking soda, or just plain water for brushing my teeth. I still had a few residual problems for about 5 years, and one root canal, but otherwise have had almost perfect teeth since then. I wish I had figured that out earlier. -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
#107
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TheM wrote:
"nospam" wrote in message ... Pete Wilcox wrote: Folks our age are going to die of *something* in two or three decades, regardless. I think that mercury, or lead, or whatever-other-heavy-metal poisoning is the least of our worries. We are disposable containers for our genes. I think there is a quite reasonable argument that with our bodies having (by design) a limited life if they are not knackerd and contaminated by the time we die we have to some degree wasted them. I wonder, should we ever be able to extend our lives to hundreds of years, what that might mean for our lifestyle. Living extremely healthy and avoiding pollution of all kinds, perhaps? Also ensuring that a frontier is available; e.g. serious efforts at off-world colonization. Michael |
#108
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Arfa Daily wrote:
Although my memory, particularly short-term, is not as good as it was, ... would expect for a mid 50's man with my location and lifestyle. Arfa Aha! Another glaring testimony to the insipid dangers that we can expect from buying/disposing of CFLs (or electronic solder) due to MERCURY (or LEAD) which has been proven to be FATAL (...in some cases). Yes, the snipping was intentional. ![]() -Bill ** Posted from http://www.teranews.com ** |
#109
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msg wrote:
TheM wrote: "nospam" wrote in message ... Pete Wilcox wrote: Folks our age are going to die of *something* in two or three decades, regardless. I think that mercury, or lead, or whatever-other-heavy-metal poisoning is the least of our worries. We are disposable containers for our genes. I think there is a quite reasonable argument that with our bodies having (by design) a limited life if they are not knackerd and contaminated by the time we die we have to some degree wasted them. I wonder, should we ever be able to extend our lives to hundreds of years, what that might mean for our lifestyle. Living extremely healthy and avoiding pollution of all kinds, perhaps? Also ensuring that a frontier is available; e.g. serious efforts at off-world colonization. Michael "the meek shall inherit the earth" because the brave will be out conquering the universe. Cheers Terry |
#110
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On Thu, 10 Apr 2008 09:43:51 +1200, Terry Given
wrote: "the meek shall inherit the earth" because the brave will be out conquering the universe. Cheers Terry Apparently you haven't read much history. The history of exploration and colonization is liberally laced with misfits, criminals, and evil scum of varying sorts. Anyone that is successful and comfortable in the home country, is not going to go out exploring. They already have what they want, so why bother risking it on the unknown? It isn't so much bravery that inspired the age of exploration. It was the intolerance created by various despotic rulers than inspired those with nothing to lose to get out of town and go exploring. Same with those that were persecuted for religious and political reasons. The initial explorers may by the brave and the daring, going to places where no sane person would consider living. However, those that follow will be quite different. The 2nd wave will be the tourists. Those with bigger pocket books than concern for their own safety. After that come those that can't get along with anyone, in any country, on any planet. Kinda like the moutain men and mad hermits. Next come the immigrants, that just want some different or better place than the living hell they came from. Eventually, space travel will be mundane enough for the carpetbaggers, bureaucrats, politicians, hookers, pimps, salesmen, and the rest of the trash that constitutes civilization. -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
#111
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Jeff Liebermann wrote:
On Thu, 10 Apr 2008 09:43:51 +1200, Terry Given wrote: "the meek shall inherit the earth" because the brave will be out conquering the universe. Cheers Terry Apparently you haven't read much history. The history of exploration and colonization is liberally laced with misfits, criminals, and evil scum of varying sorts. indeed. one does not need to look far back in history (9am today will suffice) to discover that, on average, humans are nasty. Our "civilisation" is a pretty thin veneer, which is entirely absent in large swathes of the world. luckily, not in my back yard ![]() Anyone that is successful and comfortable in the home country, is not going to go out exploring. They already have what they want, so why bother risking it on the unknown? It isn't so much bravery that inspired the age of exploration. It was the intolerance created by various despotic rulers than inspired those with nothing to lose to get out of town and go exploring. Same with those that were persecuted for religious and political reasons. The initial explorers may by the brave and the daring, going to places where no sane person would consider living. However, those that follow will be quite different. The 2nd wave will be the tourists. Those with bigger pocket books than concern for their own safety. After that come those that can't get along with anyone, in any country, on any planet. Kinda like the moutain men and mad hermits. Next come the immigrants, that just want some different or better place than the living hell they came from. Eventually, space travel will be mundane enough for the carpetbaggers, bureaucrats, politicians, hookers, pimps, salesmen, and the rest of the trash that constitutes civilization. abbrev. "people" However unlike Earth, space is a lot bigger so it should take a lot longer to ruin it. perhaps even long enought that we'll learn to play nice, but I doubt it. I always liked that line in Amused to Death: "Give any one species too much rope and they'll **** it up" Cheers Terry |
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Whenever I see references to amalgam fillings in this context,
I always wonder just how 'real' the improvement in perceived well-being is. I don't doubt that you feel better now you have had them removed, but I really wonder how much of that is because you *expected* to feel better, because that's why you were having them removed? It's been shown that amalgam fillings release mercury vapor only when you grind down hard on them. They're otherwide inert. |
#113
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Arfa Daily wrote:
"Jay Ts" wrote in message I was amazed at how quickly I started feeling better after I had my mercury fillings removed. Whenever I see references to amalgam fillings in this context, I always wonder just how 'real' the improvement in perceived well-being is. I feel like I know exactly what you're thinking, because that is what I used to think too! But I kept meeting people who told me, "I'm so glad I had it done" that at one point, it was the next thing to try, to see if I could recover from my chronic health problems. I don't doubt that you feel better now you have had them removed, but I really wonder how much of that is because you *expected* to feel better, I didn't expect to notice *any* improvement right away, and I'd never heard of that happening. But it did. After the painkillers wore off and I got a night's sleep, the very next day I got a definite, very-hard-to-ignore boost in mental acuity, and to use an overused saying, "felt like a fog had been lifted off me". Nothing else had changed in my life that could have accounted for that. I had put off having it done for about 10 years due to the cost, ordeal of it, and because I never had anything objective to latch onto to feel confident that it would result in any kind of noticeable improvement. Other people I've talked to don't get any, but they're usually still "glad they had it done." "YMMV" is the simplest answer I can give to you, and there's not much of any way anyone can tell you in advance what your experience would be. I'm interested to know, not least because I have an amalgam filling in just about every 4 - 8 tooth, both sides, top and bottom, and have had for 40 years or more since I was a kid, and they were the 'norm'. Although my memory, particularly short-term, is not as good as it was, otherwise, I would have rated my health as 'OK', and not any worse than I would expect for a mid 50's man with my location and lifestyle. As compared to say, other people who also have amalgam fillings? ;-) Unfortunately, that's the rub of it. Heavy metal toxicity is usually very sneaky. It sinks in gradually, and you can't tell it's there, and I think for almost all cases, it never gets bad enough to cause acute symptoms that doctors can diagnose. But then I heard of a woman (friend of a friend) who was suffering from MS for many years, and after a lot of other things, she tried getting her mercury fillings removed. And then she simply recovered! So who knows? There's no proof that the mercury removal did it, but she had no other explanation for it. (Miracle?) BTW, I regret that I cannot reveal personal details about other people, to protect both them and dentists who remove mercury fillings. Dentists are still persecuted by the ADA and other organizations in some areas. Jay Ts -- To contact me, use this web page: http://www.jayts.com/contact.php |
#114
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Pete Wilcox wrote:
Loadsa mercury in my mouth too, but I was told by my dentist that *more* would be released into the body and absorbed during the process of having the fillings drilled out and replaced, than would be released by simply leaving them in place. Yes and no and/or maybe. ![]() so you'd need to find a dentist that observes proper technique for the operation. If you can, find one that has been trained by Dr. Huggins, the guy who brought this issue into the public view with his book "It's All in Your Head". (Hint: search Amazon.com for that, and check out the reader comments too.) I've heard that there are many dentists doing mercury removal, and you need to be careful to find one that does it "right". Some dentists even have something like a DMM to check electric potentials of each filling, to make sure to take them out in the proper order. I'm not kidding! (And no, I don't have any idea if the theory that is based on is really scientifically grounded or not.) Folks our age are going to die of *something* in two or three decades, regardless. I might die tomorrow, and if it happens, that's not a problem for me. What DOES matter is that I have a high-quality and enjoyable life with value in the meantime. Jay Ts -- To contact me, use this web page: http://www.jayts.com/contact.php |
#115
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William Sommerwerck wrote:
Whenever I see references to amalgam fillings in this context, I always wonder just how 'real' the improvement in perceived well-being is. I don't doubt that you feel better now you have had them removed, but I really wonder how much of that is because you *expected* to feel better, because that's why you were having them removed? It's been shown that amalgam fillings release mercury vapor only when you grind down hard on them. They're otherwide inert. That's what the ADA and ADA-trained dentists like to say. It is my opinion that they are in deep denial regarding the issue. Not surprising considering that the ADA was formed by a bunch of mercury-using dentists who got together and decided that dentists in the organization were not allowed to tell their patients that mercury was bad for them. However, the information that I've reviewed says that there have been research studies done that have shown it's just not true - mercury dissolves a little in saliva, and a lot more in acidic stuff like lemon juice, tomatoes or carbonated beverages. I haven't actually read it, but I expect there's a lot more informatin on this in Dr. Huggins' book. So keeping in mind that I'm not an expert... I think the rate of dissolution varies with individual body chemistry, and the type, number and condition of fillings. And some people seem to be a lot better than others at flushing out toxins from their body (I'm in the low end on that one, so I have to be a lot more careful). Or maybe some people are simply more tolerant of having toxic bodies. To me, there seem to be a lot of people in that category. I regret the pun, but I find the whole topic of mercury filling toxicity, along with the general topic of heavy metal toxicity to be a "grey area" (sorry ![]() in a well-defined manner in a way that doesn't beg for debate. The more I've studied it, the closer it seems to "conspiracy theory". I wish it were simpler. Jay Ts -- To contact me, use this web page: http://www.jayts.com/contact.php |
#116
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Archimedes' Lever wrote:
Jay Ts wrote: Some dentists even have something like a DMM to check electric potentials of each filling, to make sure to take them out in the proper order. Bull****. A filling is so small that no meter made can read the resistance of it, nor is there an instrument than can measure any subtle differences from one to the next. That is aside from the fact that one would have to have the filling out to be able to access it across its breadth in order to take any such reading to begin with. Total and utter bull****. Thank you so kindly for your warm reception to my post. I was merely passing on the information because I had found it amusing. I thought it was fun to mention it and go "on topic" for the newsgroup as a change of pace. ![]() But you didn't seem to get the intent or the joke. I am so sorry. They don't measure resistance. To re-include the full context: | Some dentists even have something like a DMM to check electric | potentials of each filling, to make sure to take them out in | the proper order. I'm not kidding! (And no, I don't have any | idea if the theory that is based on is really scientifically | grounded or not.) I put it right there in front of you: They measure ELECTRIC POTENTIAL otherwise known as "VOLTAGE", between a filling and a reference point. http://en.wikipedia.org/wiki/Electric_potential It has to do with electricity... different metals in a salty solution, currents and movement of metal ions. Of course, there's absolutely no physics behind that, right? Seriously, I don't know if tiny currents in the mouth could dislodge enough mercury to cause a problem, ok? The people who come up with these ideas are dentists, not physicists. Sometimes they are just off on some parts. But I haven't read Dr. Huggins' book, so I shouldn't knock him without listening openmindedly first. The guy has saved a lot of people. Take a look at the reader comments on his book at Amazon.com. Is Rosie O'Retard your favorite celebrity? Other than your mention of it, I have no awareness of that entity. Apparently, you are much more of a fan than I. ![]() Again, thanks very much for your post, I think that made my day. Peace and Happiness, Jay Ts -- To contact me, use this web page: http://www.jayts.com/contact.php |
#117
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![]() "Jay Ts" wrote in message ng.com... Arfa Daily wrote: "Jay Ts" wrote in message I was amazed at how quickly I started feeling better after I had my mercury fillings removed. Whenever I see references to amalgam fillings in this context, I always wonder just how 'real' the improvement in perceived well-being is. I feel like I know exactly what you're thinking, because that is what I used to think too! But I kept meeting people who told me, "I'm so glad I had it done" that at one point, it was the next thing to try, to see if I could recover from my chronic health problems. I don't doubt that you feel better now you have had them removed, but I really wonder how much of that is because you *expected* to feel better, I didn't expect to notice *any* improvement right away, and I'd never heard of that happening. But it did. After the painkillers wore off and I got a night's sleep, the very next day I got a definite, very-hard-to-ignore boost in mental acuity, and to use an overused saying, "felt like a fog had been lifted off me". Nothing else had changed in my life that could have accounted for that. I had put off having it done for about 10 years due to the cost, ordeal of it, and because I never had anything objective to latch onto to feel confident that it would result in any kind of noticeable improvement. Other people I've talked to don't get any, but they're usually still "glad they had it done." "YMMV" is the simplest answer I can give to you, and there's not much of any way anyone can tell you in advance what your experience would be. I'm interested to know, not least because I have an amalgam filling in just about every 4 - 8 tooth, both sides, top and bottom, and have had for 40 years or more since I was a kid, and they were the 'norm'. Although my memory, particularly short-term, is not as good as it was, otherwise, I would have rated my health as 'OK', and not any worse than I would expect for a mid 50's man with my location and lifestyle. As compared to say, other people who also have amalgam fillings? ;-) Unfortunately, that's the rub of it. Heavy metal toxicity is usually very sneaky. It sinks in gradually, and you can't tell it's there, and I think for almost all cases, it never gets bad enough to cause acute symptoms that doctors can diagnose. But then I heard of a woman (friend of a friend) who was suffering from MS for many years, and after a lot of other things, she tried getting her mercury fillings removed. And then she simply recovered! So who knows? There's no proof that the mercury removal did it, but she had no other explanation for it. (Miracle?) BTW, I regret that I cannot reveal personal details about other people, to protect both them and dentists who remove mercury fillings. Dentists are still persecuted by the ADA and other organizations in some areas. Jay Ts -- To contact me, use this web page: http://www.jayts.com/contact.php Hmmm. Your passion for this subject is clear. I do, however, remain unconvinced that this is anything other than placebo effect, which has been shown in proper clinical trials, to be an extremely powerful entity. As far as I am aware - and I haven't read anything about this for some time - the human body is not good at removing heavy metal toxins from itself, without external help, so I would be surprised if your body had managed to just 'clean itself' - especially overnight - of any mercury that might have been in there as a result of your fillings. As far as fillings dissolving as a mechanism for getting the mercury into your body goes, I have some that have been in my mouth untouched for probably 30 years. All of the saliva / beer / coca cola / lemon juice / tea / coffee / other drinks, don't seem to have touched them one iota. If they are smaller than they were, then it's by a fraction of a mm. I attend a dentist regularly, and he has not seen fit to replace any of these long-term fillings through reason of them being worn below what is acceptable for their function. He has, of course, had to replace the odd one from time to time over the 35 years that I have known him, for clinical reasons. Considering the (relatively) small proportion of the filling that is mercury in the first place, any such mercury ingression as a result of this dissolution, must be infinitessimally small, and probably absolutely negligible in comparison to other sources of mercury ingression, such as airborne from power stations or in the many pounds of tuna fish that I have eaten over the years. If you could show me a study that didn't call on hearsay and personal anecdotal evidence, and that could show that a body's mercury content decreased, or at least arrested in its upward climb after such fillings had been removed, then I might be more inclined to accept that there's something in it. Can you show any such study conducted under proper scientific protocols ? Arfa |
#118
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Posted to sci.electronics.repair,sci.electronics.misc,sci.electronics.design
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Archimedes' Lever wrote:
Jay Ts wrote: That's what the ADA and ADA-trained dentists like to say. It is my opinion that they are in deep denial regarding the issue. Not surprising considering that the ADA was formed by a bunch of mercury-using dentists who got together and decided that dentists in the organization were not allowed to tell their patients that mercury was bad for them. More bull****. Back when that organization was formed, silver/mercury amalgam filling were all there was available for the task. So no "selling" was required, nor practiced, idiot. Gold and early plastics were already in use before amalgams were introduced. Just now I found that information in the entry for "dentistry" in The New International Encyclopaedia in Google Books. There were also other materials in use, including lead and tin. (Note for the dense: that is me playfully trying to go on-topic again. ![]() According to a Wikipedia article linked below, amalgams came into use "because they are malleable, durable, and more affordable than gold or composites." In other words, because they are _cheap_ and _easy_. ![]() The info in my previous post came to me through a holistic, mercury-free dentist, who may have been a little biased. The story was that there were dentists at the time (c. 1850, roughly) who were against the use of mercury, and started an organization that included only those dentists. But another organization was formed by the mercury-using dentists, and they won, eclipsing the first one. That is now the American Dental Association (ADA). The article said that the term "quack" came from the mercury-using dentists. "Quack" was short for "quicksilver", another term for mercury. This article at Wikipedia more-or-less supports that info: http://en.wikipedia.org/wiki/Quack And there is a link at the bottom of that page to this one, on Dental Amalgam Controversy: http://en.wikipedia.org/wiki/Dental_amalgam_controversy Information in that article supports my comment about the origin of the ADA. See the section, "History and overview". It does a lot better, but I think I did pretty well considering I was going on a single article handed to me 8 years ago, before I had Wikipedia, and I was going just on memory of that. Jay Ts -- To contact me, use this web page: http://www.jayts.com/contact.php |
#119
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Posted to sci.electronics.repair,sci.electronics.misc,sci.electronics.design
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On Wed, 9 Apr 2008, msg wrote:
TheM wrote: I wonder, should we ever be able to extend our lives to hundreds of years, what that might mean for our lifestyle. Living extremely healthy and avoiding pollution of all kinds, perhaps? Also ensuring that a frontier is available; e.g. serious efforts at off-world colonization. Would require a MAJOR reduction in the birth-rate though, at least initially, in order to avoid over-population. This reminds me of Tim Leary's "SMILE" formula - the three major areas of development for the species over the coming decades should/will be (SM) = Space Migration, (I^2) = Increasing Intelligence, and (LE) = Life Extension. Despite the fact that he was a drugged-out nutter, these seem to me to be quite reasonable objectives. Cheers, Pete. |
#120
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Posted to sci.electronics.repair,sci.electronics.misc,sci.electronics.design
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one reply got into print
* The Guardian, * Thursday April 10 2008 Getting the lead out Thank you for publishing the article on tin whiskers (Within a whisker of failure, April 3). Too much attention has been given to well-meaning people who are pushing the environmental agenda but with very little science behind what they are trying to achieve. Some of the green community captured the public attention and pushed through the no lead on electronics, when there was not sufficient test data available (actually there was a lot of data on US military aircraft). Now we are finding the problems of having a political agenda and not one based on science and facts. Steven Adamson, IMAPS president and Asymtek market manager -- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on http://home.graffiti.net/diverse:graffiti.net/ |
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