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#1
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On Sep 16, 3:39*pm, "Wayne" wrote:
"Art Unwin" wrote in message ...I consider it a real shame that equilibrium is not a part of examinations since equilibrium is a basic in the electrical circuit of all antennas No where do I see antennas explained other than the showing of capacitive coupling to ground of antennas as a perceived circuit of an antenna?. Until this is corrected we will never have continium of discussion between hams on antennas.It is not a mystery anymore so why do the ARRL avoid it like a plague? Art - My engineering training is many years old now, but I haven't seen equilibrium in the context of antennas discussed anywhere except by you, in this newsgroup. *Do you have any references to papers that have been peer reviewed and published? Oh I suppose a search on google re antennas and equilibrium will get you something to read but difficult if you are starting from Zero. The point where you begin is Newtons laws, if they are in error then so am I I doubt if you will find anything that definitely proves that he is wrong.If a professor does not know what I have stated he should be nfired which goes for some of the people at University of Illinois in the electrical engineering area. EVERYTHING in science revolves around equilibrium. If a posting denys that or does not respond to that Law i will not respond and that includes Richard whose sole aim in life if to divert the crowd with off topic nothings as he does not ahve any engineering degree from any accredited college and thus is a pretender looking for a date with any poster. Art |
#2
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but difficult if you are starting from Zero. The point where you begin
is Newtons laws, if they are in error then so am I Newtons laws are not in error. But your application of them is in error. You are applying laws that apply to objects with mass to electromagnetic radiation, which has no mass. engineering degree from any accredited college and thus is a pretender looking for a date with any poster. I have an Engineering Physics degree from a university program that is an ABET certified engineering program. |
#3
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Rectifier wrote:
You are applying laws that apply to objects with mass to electromagnetic radiation, which has no mass. Photons have zero rest mass. Otherwise, they couldn't travel at the speed of light. But photons traveling at the speed of light certainly have mass. Where in the world did you get such irrational ideas? I have an Engineering Physics degree from a university program that is an ABET certified engineering program. After your latest posting, they may de-certify your university's program. Exactly what university was it that taught you that photons traveling at the speed of light have zero mass? -- 73, Cecil http://www.w5dxp.com |
#4
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On Sep 16, 4:32*pm, Cecil Moore wrote:
Rectifier wrote: You are applying laws that apply to objects with mass to electromagnetic radiation, which has no mass. Photons have zero rest mass. Otherwise, they couldn't travel at the speed of light. But photons traveling at the speed of light certainly have mass. Where in the world did you get such irrational ideas? I have an Engineering Physics degree from a university program that is an ABET certified engineering program. After your latest posting, they may de-certify your university's program. Exactly what university was it that taught you that photons traveling at the speed of light have zero mass? -- 73, Cecil *http://www.w5dxp.com Cecil, this sounds like a regular poster David.Perhaps he is pulling your leg with his nonsence Art |
#5
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Art Unwin wrote:
... Cecil, this sounds like a regular poster David.Perhaps he is pulling your leg with his nonsence Art What, this is not the "Pulling Your Leg Festival?" Damn, it appears I have caught the wrong door again! Last time this happened, it was a womens restroom, at walmart, no less :-( -- at least this is less embarrassing ... grin I have found this news group to be a usable answer to the question, "What would happen if you accidentally entered the door to an old-peoples/rest-home/psychiatric-institution instead of the forum for the college lecture you were supposed to be at and in attendance? Hey, it works for me ... another-straight-face-yet Regards, JS |
#6
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What, this is not the "Pulling Your Leg Festival?"
Damn, it appears I have caught the wrong door again! Last time this happened, it was a womens restroom, at walmart, no less :-( -- at least this is less embarrassing ... grin ROFLOL I did that at a technical seminar in a hotel once. I was pondering the ramifications of the training and didn't even look at the door. It wasn't until the only woman there rushed in (probably preoccupied as well) and plopped down and peed that it dawned on me that there was something very very wrong! In any case, Art seems to have trouble articulating and I have completely lost touch with any sense he might have made somewhere in the great pile of this thread. I get that even though a resonant dipole can be treated as if it were a lumped constant at times, it really isn't that. Do electrons fly back and forth down the pole and induce a magnetic field? Without flying off the ends? Yes but that is hard to make sense of because there should be no current flow in an open wire. A loop element maybe, but the resonant loop has the same current as the center fed dipole. Perhaps looking at the re-entrant cavity makes more sense. |
#7
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JB wrote:
... ROFLOL I did that at a technical seminar in a hotel once. I was pondering the ramifications of the training and didn't even look at the door. It wasn't until the only woman there rushed in (probably preoccupied as well) and plopped down and peed that it dawned on me that there was something very very wrong! Thanks, I needed that ... always wondered if I was "the only one?" LOL In any case, Art seems to have trouble articulating and I have completely lost touch with any sense he might have made somewhere in the great pile of this thread. Ahhh, Art is Art, he does provide good exercise in thinking ... IMHO ... I get that even though a resonant dipole can be treated as if it were a lumped constant at times, it really isn't that. Do electrons fly back and forth down the pole and induce a magnetic field? Without flying off the ends? Yes but that is hard to make sense of because there should be no current flow in an open wire. A loop element maybe, but the resonant loop has the same current as the center fed dipole. Perhaps looking at the re-entrant cavity makes more sense. Now see, there ya' go, ya' got me wonderin' again ... yet-another straight-face :-| Warm regards, JS |
#8
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On Sep 16, 8:32*pm, "JB" wrote:
What, this is not the "Pulling Your Leg Festival?" Damn, it appears I have caught the wrong door again! *Last time this happened, it was a womens restroom, at walmart, no less :-( -- at least this is less embarrassing ... grin ROFLOL I did that at a technical seminar in a hotel once. *I was pondering the ramifications of the training and didn't even look at the door. *It wasn't until the only woman there rushed in (probably preoccupied as well) and plopped down and peed that it dawned on me that there was something very very wrong! In any case, Art seems to have trouble articulating and I have completely lost touch with any sense he might have made somewhere in the great pile of this thread. I get that even though a resonant dipole can be treated as if it were a lumped constant at times, it really isn't that. *Do electrons fly back and forth down the pole and induce a magnetic field? * No, they are generating a magnetic field when the current is at the surface which means eddy currents are also there. neither of these appear when the current is enclosed Without flying off the ends? Yes but that is hard to make sense of because there should be no current flow in an open wire. The wire may be open but the current flow IS closed *A loop element maybe, but the resonant loop has the same current as the center fed dipole. *Perhaps looking at the re-entrant cavity makes more sense. John you are equating resonance with equilibrium, a dipole in antenna terms is a half wavelength resonant but not in a state of equilibrium. Equilibrium is a staple in this Universe. First comes equilibrium after which you may consider resonance.......but not the reverse. Both of the samples are of a half wave length thus it is not in equilibrium. Equilibrium comes first in the satisfaction analysis, if it fails all falls apart. Best regards Art |
#9
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On Tue, 16 Sep 2008 16:47:54 -0700 (PDT), Art Unwin
wrote: On Sep 16, 4:32*pm, Cecil Moore wrote: Photons have zero rest mass. a photon at rest, how droll. Cecil, this sounds like a regular poster David.Perhaps he is pulling your leg with his nonsence We know that we can accelerate an electron to 90% of the speed of light - it happens every femtosecond in one of any 100 billion crt displays still glowing in the world. Some of us know its mass at this speed. A question for the Newtonian philosopherz: "What is the mass of a photon traveling at 90% of the speed of light?" 73's Richard Clark, KB7QHC |
#10
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On Tue, 16 Sep 2008 17:19:14 -0700, Richard Clark
wrote: On Tue, 16 Sep 2008 16:47:54 -0700 (PDT), Art Unwin wrote: On Sep 16, 4:32*pm, Cecil Moore wrote: Photons have zero rest mass. a photon at rest, how droll. Cecil, this sounds like a regular poster David.Perhaps he is pulling your leg with his nonsence We know that we can accelerate an electron to 90% of the speed of light - it happens every femtosecond in one of any 100 billion crt displays still glowing in the world. Some of us know its mass at this speed. A question for the Newtonian philosopherz: "What is the mass of a photon traveling at 90% of the speed of light?" Ah, yes! No Newtonians in this crowd. Perhaps it was the relativistic term "speed of light" that confused this group so much. Let's restate it in units that Newton could have appreciated. We know that we can accelerate an electron to 167,770 miles/s - it happens every femtosecond in one of any 100 billion crt displays still glowing in the world. Some of us know its mass at this speed. A question for the Newtonian philosopherz: "What is the mass of a photon traveling at 167,770 miles/s?" 73's Richard Clark, KB7QHC |
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