Home |
Search |
Today's Posts |
|
#1
![]() |
|||
|
|||
![]()
Richard Clark wrote:
... Try the combination of all amplitudes and phases at a distance (pretty usual stuff already covered). ... 73's Richard Clark, KB7QHC For you Richard, just remember to stand the broadside of a stove on cold winter days--wouldn't want 'ya to catch yer death of cold! :-) Regards, JS |
#2
![]() |
|||
|
|||
![]()
On Wed, 29 Aug 2007 18:22:30 -0700, John Smith
wrote: For you Richard, just remember to stand the broadside of a stove on cold winter days--wouldn't want 'ya to catch yer death of cold! :-) That has nothing to do with Photons. 73's Richard Clark, KB7QHC |
#3
![]() |
|||
|
|||
![]()
On Aug 29, 5:35 pm, John Smith wrote:
K7ITM wrote: ... On the other hand, there's probably not much utility in discussing photons of, say, a 14MHz signal, simply because the energy contained in one quantum at that frequency is so small that you won't be able to detect it: a little less than 10^-26 joules per photon. At one photon per second, that's under 10^-26 watts, if you collect all the energy. At 50 ohms, that's less than a picovolt. Noise in a 1Hz bandwidth in a 50 ohm resistor at room temperature is about a thousand times that much. -- Yes, the energy is quantized. But the quanta are going to be _very_ difficult to distinguish. Cheers, Tom If there are, indeed, as many photons being emitted by the thin edge of the ribbon, as by the broad edges, what law/effect/affect is being demonstrated here? Or. why are the photons "drawn" to the thin edge with such magnitude of force? The 14MHz photons are being emitted by the whole antenna, not by "broad edges" or "thin edges" as you suggest. You seem to be thinking of them as little tiny balls, or some such. That mental image just doesn't hold water. As I posted elsewhere in this thread, photons do not behave like billiard balls. They don't behave like anything you have encountered in the macro world we live in. There are some decent "modern physics for the masses" books that will explain to you some of the behaviour that you will probably think very strange, if you are thinking in terms of how the macro particles you're familiar with behave. Even particles like electrons, neutrons and protons don't behave like large spheres. They have distinct "wave- like" behaviour. As a start, it would probably help if you dropped "wave" and "photon" (particle) from your vocabulary when dealing with things like this and realize that the antenna emits a stream of quantized energy, with characteristics that can be described accurately without resorting to "particles" or "waves". If you had no idea what a passenger airplane was, but you were familiar with birds and busses, would you get into a discussion about the new thing being a bird and not a bus, or a bus and not a bird? Or would you realize that it has some characteristics of each, but is neither, and deserves a description all its own? Quantized radiation is rather like that. You will NOT describe it accurately as either "waves" or "particles" (in the macro sense). Cheers, Tom |
#4
![]() |
|||
|
|||
![]()
The following of yours is very interesting, very descriptive and sounds
very scientific. So now, the only question left, which seems implied by you, is, "Do I get it?" To which I reply, EUREKA! YES! Indeed, since we got rid of photons and waves--we are only left with quanta! And, if we now construct a "quanta-antenna", such as you imply, we can have a "160 meter earth scorcher" the size of pin head which is just as an efficient radiator as the MONSTER in my backyard! Thanks for the explanation--I won't forget you for awhile! grin Regards, JS K7ITM wrote: On Aug 29, 5:35 pm, John Smith wrote: K7ITM wrote: ... On the other hand, there's probably not much utility in discussing photons of, say, a 14MHz signal, simply because the energy contained in one quantum at that frequency is so small that you won't be able to detect it: a little less than 10^-26 joules per photon. At one photon per second, that's under 10^-26 watts, if you collect all the energy. At 50 ohms, that's less than a picovolt. Noise in a 1Hz bandwidth in a 50 ohm resistor at room temperature is about a thousand times that much. -- Yes, the energy is quantized. But the quanta are going to be _very_ difficult to distinguish. Cheers, Tom If there are, indeed, as many photons being emitted by the thin edge of the ribbon, as by the broad edges, what law/effect/affect is being demonstrated here? Or. why are the photons "drawn" to the thin edge with such magnitude of force? The 14MHz photons are being emitted by the whole antenna, not by "broad edges" or "thin edges" as you suggest. You seem to be thinking of them as little tiny balls, or some such. That mental image just doesn't hold water. As I posted elsewhere in this thread, photons do not behave like billiard balls. They don't behave like anything you have encountered in the macro world we live in. There are some decent "modern physics for the masses" books that will explain to you some of the behaviour that you will probably think very strange, if you are thinking in terms of how the macro particles you're familiar with behave. Even particles like electrons, neutrons and protons don't behave like large spheres. They have distinct "wave- like" behaviour. As a start, it would probably help if you dropped "wave" and "photon" (particle) from your vocabulary when dealing with things like this and realize that the antenna emits a stream of quantized energy, with characteristics that can be described accurately without resorting to "particles" or "waves". If you had no idea what a passenger airplane was, but you were familiar with birds and busses, would you get into a discussion about the new thing being a bird and not a bus, or a bus and not a bird? Or would you realize that it has some characteristics of each, but is neither, and deserves a description all its own? Quantized radiation is rather like that. You will NOT describe it accurately as either "waves" or "particles" (in the macro sense). Cheers, Tom |
#5
![]() |
|||
|
|||
![]()
John Smith wrote:
... The more I think about this, the clearer it gets. What was wrong with me? Considering photons as little weightless, billiard ball shaped "chunks" of energy? I missed the boat, and early on--thick skulled and as slow as they come. I now see 'em as cubes, tubes, polygons, irregular, indescribable, ghostly, luminous, streaming strings ... of chunks of energy! Yes, that is it, strings! And, it all fits! Dr. Michio Kaku has been spouting string theory off the tops of high buildings for years--ahhh, if only I'd had not been so dense--for so long ... :-( Yes. This is quite better than my slow acceptance of the ether and "our matter/energy" only existing as an "altered and unnatural form" of this very same ether ... I swear, sometimes I just need someone to save me from myself--my new wife is beginning to, frequently, point this out to me--thank goodness! Maybe next time, I just might have the good sense to listen. grin Regards, JS |
#6
![]() |
|||
|
|||
![]()
On Aug 29, 8:55 pm, John Smith wrote:
The following of yours is very interesting, very descriptive and sounds very scientific. So now, the only question left, which seems implied by you, is, "Do I get it?" To which I reply, EUREKA! YES! Indeed, since we got rid of photons and waves--we are only left with quanta! And, if we now construct a "quanta-antenna", such as you imply, we can have a "160 meter earth scorcher" the size of pin head which is just as an efficient radiator as the MONSTER in my backyard! Thanks for the explanation--I won't forget you for awhile! grin Regards, JS Hey, great job of leaping to confusion, John! ;-) |
#7
![]() |
|||
|
|||
![]()
K7ITM wrote:r
. . .If you had no idea what a passenger airplane was, but you were familiar with birds and busses, would you get into a discussion about the new thing being a bird and not a bus, or a bus and not a bird? . . . I know the answer to that one! And I also know who would be making the majority of the postings. Roy Lewallen, W7EL |
#8
![]() |
|||
|
|||
![]()
Roy Lewallen wrote in news:13dcljlrausna18
@corp.supernews.com: I know the answer to that one! And I also know who would be making the majority of the postings. .... but, more importantly the last posting. Owen |
#9
![]() |
|||
|
|||
![]()
On 29 Aug, 20:47, K7ITM wrote:
On Aug 29, 5:35 pm, John Smith wrote: K7ITM wrote: ... On the other hand, there's probably not much utility in discussing photons of, say, a 14MHz signal, simply because the energy contained in one quantum at that frequency is so small that you won't be able to detect it: a little less than 10^-26 joules per photon. At one photon per second, that's under 10^-26 watts, if you collect all the energy. At 50 ohms, that's less than a picovolt. Noise in a 1Hz bandwidth in a 50 ohm resistor at room temperature is about a thousand times that much. -- Yes, the energy is quantized. But the quanta are going to be _very_ difficult to distinguish. Cheers, Tom If there are, indeed, as many photons being emitted by the thin edge of the ribbon, as by the broad edges, what law/effect/affect is being demonstrated here? Or. why are the photons "drawn" to the thin edge with such magnitude of force? The 14MHz photons are being emitted by the whole antenna, not by "broad edges" or "thin edges" as you suggest. You seem to be thinking of them as little tiny balls, or some such. That mental image just doesn't hold water. As I posted elsewhere in this thread, photons do not behave like billiard balls. They don't behave like anything you have encountered in the macro world we live in. There are some decent "modern physics for the masses" books that will explain to you some of the behaviour that you will probably think very strange, if you are thinking in terms of how the macro particles you're familiar with behave. Even particles like electrons, neutrons and protons don't behave like large spheres. They have distinct "wave- like" behaviour. As a start, it would probably help if you dropped "wave" and "photon" (particle) from your vocabulary when dealing with things like this and realize that the antenna emits a stream of quantized energy, with characteristics that can be described accurately without resorting to "particles" or "waves". If you had no idea what a passenger airplane was, but you were familiar with birds and busses, would you get into a discussion about the new thing being a bird and not a bus, or a bus and not a bird? Or would you realize that it has some characteristics of each, but is neither, and deserves a description all its own? Quantized radiation is rather like that. You will NOT describe it accurately as either "waves" or "particles" (in the macro sense). Cheers, Tom- Hide quoted text - - Show quoted text - I like that explanation, a "packet" or a "swarm" of particles in pulsatic form. That last additive bit is extremely important because the escape co ordinates change with each pulse. This should satisfy those who seem to be more concerned with the size or shape of particulates. The bird part is especially interesting since a swarm of birds emulate equilibrium in mass form without collisions. Art |
#10
![]() |
|||
|
|||
![]() John Smith wrote: Ok. You might ask me, "Why do you laugh at people discussing antennas emitting photons? And, I would answer: Photon emissions from an antenna element(s) seems difficult, at best, to visualize (no pun intended.) Consider a 1/2 inch dia. single element antenna (monopole?) If the thing is emitting photons, one would think the photons are being emitted equally around the elements circumference. Well, now flatten that 1/2 dia rod into a very thin ribbon--however, the ribbon still has the same area of cross section, and equal to the cross section of the round rod. If this conductor is emitting photons, one would expect them, now, to be off the two flat sides of the element and relative few off the sides--indeed, one would now expect this element to be becoming directional in two favored directions--off the flat sides ... to date, I have NOT been able to measure an acceptable difference to reinforce the "illumination properties" of the element. The photon/wave properties of rf still remains a mystery ... and proof hard to come by. Regards, JS Get a copy of Richard Feynman's "QED". It's 4 of his lectures on the subject. jk |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
![]() |
||||
Thread | Forum | |||
FA: Midland UHF NMO 5/8 over 1/2 wave Mobile Antennas | Swap | |||
FA: Midland UHF NMO 5/8 over 1/2 wave Mobile Antennas | Swap | |||
FA: Midland UHF NMO 5/8 over 1/2 wave Mobile Antennas | Equipment | |||
7/8 wave antennas? | Homebrew | |||
Loop Antennas, Medium Wave - 120m Band | Antenna |