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"Jack Painter" wrote in message news:lCGDd.9973$B95.1664@lakeread02... "Richard Clark" wrote On Fri, 7 Jan 2005 01:53:00 -0500, "Jack Painter" wrote: Interested in your comments *after* you have read the study. http://lightning-protection-institut...-terminals.pdf Hi Jack, "It is quite obvious from these plots that the experimentally determined electric field strength is less than the "simple-minded" V/d value." Interesting brush-off so early in the paper begs for real editorial control. As very few would experience lighting sourced from a grid of wire 5M overhead this paper seems an example of the "laboratory factor" it set out to examine and yields a paper confined to laboratory arcana. All fine and well, but what is the point? "There is an urgent need for detailed theoretical modelling which can quantify the space charge effects around air terminals, particularly in relation to upleader development." Which seems at odds with your statement: On Fri, 7 Jan 2005 01:17:07 -0500, "Jack Painter" wrote: The junk-science of early-streamer-emission but I'm not terribly interested. I wasn't particularly intrigued by Pons and Fleishman either, beyond the hubris of their closet drama. It would seem some have a desperate need to topple Franklin from a pedestal of their own building. (Theirs is called the fallacy of "present mindedness.") I'm satisfied that contemporary Europeans held him in high esteem for many noble achievements. Reductionists are measured against their own few of baser metal. Hope you found that interesting, but I doubt it - rather banal stuff. 73's Richard Clark, KB7QHC Richard, Thanks. I always find your comments about scientific material interesting. There is some monumental evidence accumulating to contest ESE/CTS, and this begs the question that if there is such a political fight over preventing its presentation to the whole IEEE body for a vote, what are they so afraid of? Russian scientists have now been commissioned to find (contrary to all other studies) that the principle works. Those "Russian scientists" often seemed to come up with controversial and unrepeatable results. Old cold warriors wondered if the Russians were that much smarter or dumber. Then, in the 90's, we found that a lot of that weird stuff was internal political smoke and mirrors, more related to funding than science. Ed wb6wsn |
"Ed Price" wrote "Richard Clark" wrote in message ... On 07 Jan 2005 16:46:54 -0600, Allen Windhorn wrote: My speculation about selection paths of ionization by RF excitation was just groping toward one way to create those channels, and HAARP naturally came to mind. A long time ago, there was some (theoretical at least) effort to see whether UV lasers could be used to create an ionized channel over a long distance. Hi Guys, One has to wonder about the consequence of double jeopardy standing beneath that antenna (HAARP experiment) or holding the laser. Think insurance covers this? Supply shop foreman (perplexed): "Another laser? What happened to the last one?" Tech (smoke curling up from clothes): "ummmm, burned out real quick-like. Could you hurry? They say more rain is on the way!" 73's Richard Clark, KB7QHC Well, I could easily imagine a laser protected within a large conductive lightning rod. All you need is a 1/" hole in an otherwise well-shielded structure. Maybe a bit larger to allow for pointing, or you could put some optics safely outside the rod. Regarding the RF excitation, I assumed that a single-point source would be dumb, because the best ionization path would be right back to YOU. But an array of exciters, electronically steered to create a sufficient power density at a focal point, is a lot smarter. Again, I don't know if the technique would work, but an electronically steered (more like focusing) array would be one way to do it. One poster said that the ionized channel might blow away in the wind. Maybe a quick system could "paint" an ionization channel fast enough. Maybe a system could detect and take advantage of leaders, to create a shorter path. Ed wb6wsn Hi Ed, using high powered lasers to "paint" a thunderstorm cloud has been done, and whether reliably or not, was able to trigger lightning. It hasn't translated into practical protection schemes yet, but that could simply be economics. As a means of triggering lightning to a safe point away from vulnerable assets, it still leaves the possibility that some storms are so powerful that nothing short of an extensive, multi-point array of lasers could ever offer protection at an individual point. It is generally so much less expensive to employ catenary wires overhead, build faraday-cages around, and position air terminals in appropriate areas than the costs of such a laser system. There would also be a new class of airspace required for operation of such lasers. Something like a "no-fly zone" in fact! ;-) 73, Jack Painter Virginia Beach, Virginia |
On Sat, 8 Jan 2005 05:42:30 -0800, "Ed Price" wrote:
or you could put some optics safely outside Supply shop foreman (shocked): "You want WHAT?" Tech (still smoldering): "You know, one of those Disco Balls. We're gonna spread the beam, hit it, and hope it -ummmmm- clears the air. You got many in stock? We may need a few. "Oh yeah, another laser too." 73's Richard Clark, KB7QHC |
On Sat, 8 Jan 2005 05:52:39 -0800, "Ed Price" wrote:
Those "Russian scientists" often seemed to come up with controversial and unrepeatable results. Hi Ed, There certainly seems to be a mixed bag of what's useful out of the old USSR. However, their math software applications have been killers in the capitalistic marketplace. One other jewel came from their rocket division that built the most powerful engines known, and then the bureaucracy ordered them scrapped because they abandoned their man on the moon program. The engineer in charge deliberately ignored this order and had something like a couple of hundred wrapped up and put into storage. They are making quite a killing on selling those right now. Another story is their development of a supersonic torpedo. That's right, a jet powered torpedo that can dart through the ocean at 600MPH. It was speculated that it was the cause of the sinking of their submarine, the Kursk. It was thought that the propellant lit off in its bay, and the rest is history. 73's Richard Clark, KB7QHC |
"Jack Painter" wrote in message news:emUDd.11563$B95.6120@lakeread02... "Ed Price" wrote SNIP Regarding the RF excitation, I assumed that a single-point source would be dumb, because the best ionization path would be right back to YOU. But an array of exciters, electronically steered to create a sufficient power density at a focal point, is a lot smarter. Again, I don't know if the technique would work, but an electronically steered (more like focusing) array would be one way to do it. One poster said that the ionized channel might blow away in the wind. Maybe a quick system could "paint" an ionization channel fast enough. Maybe a system could detect and take advantage of leaders, to create a shorter path. Ed wb6wsn Hi Ed, using high powered lasers to "paint" a thunderstorm cloud has been done, and whether reliably or not, was able to trigger lightning. It hasn't translated into practical protection schemes yet, but that could simply be economics. As a means of triggering lightning to a safe point away from vulnerable assets, it still leaves the possibility that some storms are so powerful that nothing short of an extensive, multi-point array of lasers could ever offer protection at an individual point. It is generally so much less expensive to employ catenary wires overhead, build faraday-cages around, and position air terminals in appropriate areas than the costs of such a laser system. There would also be a new class of airspace required for operation of such lasers. Something like a "no-fly zone" in fact! ;-) 73, Jack Painter Virginia Beach, Virginia More like a "dead-fly" zone. Yeah, aircraft (and satellite / astronaut) protection are not trivial concerns when you start squirting power into the air. BTW, I seem to recall the use of small (sounding?) rockets used around the perimeter of the Kennedy launch complex. I don't recall if these rockets trailed a thin wire, or if their exhaust plume was sufficient to trigger a lightning discharge. Anyway, I thought I recall these small expendable rockets being used as a lightning diversion technique to protect the exposed launch vehicle. (Yes, I know they also use catenary wires from the tower to the ground, but the rocket technique was supposedly to condition the area around the vehicle just as launch occurred, and the tower was moved away from the vehicle.) Ed wb6wsn |
"Ed Price" wrote BTW, I seem to recall the use of small (sounding?) rockets used around the perimeter of the Kennedy launch complex. I don't recall if these rockets trailed a thin wire, or if their exhaust plume was sufficient to trigger a lightning discharge. Anyway, I thought I recall these small expendable rockets being used as a lightning diversion technique to protect the exposed launch vehicle. (Yes, I know they also use catenary wires from the tower to the ground, but the rocket technique was supposedly to condition the area around the vehicle just as launch occurred, and the tower was moved away from the vehicle.) Ed wb6wsn Yessir Ed. At NASA Wallops Island (Eastern Shore, VA) they regularly launch sounding rockets. We have had one land well off course about 300 yards off the Virginia Beach Oceanfront late one night. I was able to help call off the extensive search involving air, sea and land assets when I convinced District to check with Group Eastern Shore (who I had heard make the Securite' announcement earlier, warning of the rocket launches). Witnesses at the beach had reported a flaming plane crash in the water. When the CG Helo pilot realized that it was probably a rocket, (and there were still more scheduled) he bugged out fast. As to triggering lightning with rockets, yes they do trail wire, and this method of lightning experimentation provides excellent results. Makes sense they would clear the air first before a launch, but I think they are pretty sure lightning isn't likely before they light one of those candles, huh? The static charges from a rocket alone must be impressive. Maybe it could attract lightning from a lot farther than normally considered in the risk-zone. Jack Va Beach |
"Ed Price" wrote in message news:nt1Ed.17168$yW5.12224@fed1read02... "Barry Horowitz" wrote in message ps.com... DON'T FORGET!!! When the paired mates, ARGON and NEON, are "coupled," they produce LIGHTNING aka [BLITZ!!!] ... they both form absolutely NO OXIDES http://carpathian_bronze.tripod.com/antarii_deck2.html A good example of sufficiently advanced blather being indistinguishable from knowledge. Ed wb6wsn Well, Ed, It is difficult to produce oxides without oxygen, but bull**** is easy to come up with. 73 H. |
More sense could be derived by considering lightning and radio-ground
conductors to be transmission lines. It's also more simple than reams of words. But perhaps its asking too much of the present-day school and engineering educational system which neglects arithmetic. Ignorant school teachers frighten pupils by calling it Mathematics. As I've said before, the culled kids who live in the sewers of Rio de Janerio, South America, are better (self) educated. |
Reg Edwards wrote: More sense could be derived by considering lightning and radio-ground conductors to be transmission lines. It's also more simple than reams of words. But perhaps its asking too much of the present-day school and engineering educational system which neglects arithmetic. Ignorant school teachers frighten pupils by calling it Mathematics. As I've said before, the culled kids who live in the sewers of Rio de Janerio, South America, are better (self) educated. Ridiculous. |
Kids considered by the City Authorities to be a nuisance, living with rats in the sewers of Rio are ocasionally culled, perhaps not explicitly by the Authorities, to reduce their nunbers by police armed with guns. Amongst other ways of making a living they survive be selling home-brewed cigarettes, loaded with cannobis and more powerful drugs on the city streets. It is not surprising why the Authorities consider them to be a nuisance - it has a bad effect on the wealthy tourist trade. Now selling cigarettes involves monetary and arithmetical transactions. Accepting bank notes and coins and giving correct change. Mental calculations involve percent of drugs per inch of cigarette length, the number of cigarettes in the pack, wastage etc. All must be done very fast before an armed policeman appears. And must be done accurately and honestly to avoid upsetting customers with the consequent longer-term bad effect of loss in trade. There has evolved in the sewers of Rio an arithmetical method of addition, subtraction, multiplication and division, altogether different from the Arabic procedures (Baghdad, Basrah, Mosul, before foreign weapons of mass destruction were introduced) now adopted by the rest of the educated world. Not so very long ago a small party of professors, Phd's, students etc., from an English univerity made an expedition to Rio specifically to investigate this apparent revolution in the very foundation of Mathematics. They returned with a new insight into how the human brain works with numbers and retired to study and then present their findings. Since then all has been silence. I have not spent much time with Google. But there is no doubt that the self-taught sewer kids of Rio are better educated at arithmetic than the so-called engineers who argue amongst themselves in words on this newsgroup without any use of numbers and relative quantities. --- Reg. |
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