[Uram-rejections] Electric waves

Thu Oct 18 18:45:01 BST 2018

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 Please address the substance rather than the patronising style.

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> From: Gareth's Downstairs Computer <headstone255.but.not.these.five.words at yahoo.com>
> Newsgroups: uk.radio.amateur.moderated
> Subject: Re: Electric waves
> Date: Thu, 18 Oct 2018 18:32:44 +0100
> Organization: A noiseless patient Spider
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> On 18/10/2018 10:44, Brian Reay wrote:
> > On 18/10/18 09:37, Roger Hayter wrote:
> >> Gareth's Downstairs Computer
> >> <headstone255.but.not.these.five.words at yahoo.com> wrote:
> >>
> >>> On 17/10/2018 23:46, Guy G4DWV 4X1LT wrote:
> >>>> On Wed, 17 Oct 2018 19:47:56 +0100, just as I was about to take a
> >>>> herb, Gareth's Downstairs Computer
> >>>> <headstone255.but.not.these.five.words at yahoo.com> disturbed my reverie
> >>>> and wrote:
> >>>>
> >>>>> I'm not aware of the involvement of the gold leaf electroscope; could
> >>>>> you expand further?
> >>>> https://en.wikibooks.org/wiki/OCR_A-Level_Physics/Electrons,_Waves_and_P 
> >>>>
> >>>> hotons_NEW_SPECIFICATION/Quantum_physics Look at the section on the
> >>>> photoelectric effect halfway down the page.
> >>>>
> >>>>> What you say, I believe, applies to emissions from individual atomic
> >>>>> activity but not to radiation from antennae.
> >>>>
> >>>> All electromagnetic radiation has photons/is photonic irrespective of
> >>>> how it is generated.
> >>>
> >>> URL? Cite?
> >>>
> >>> OK, here's a stinger.
> >>>
> >>> Consider only one of your photons leaving a Yagi-Uda beam:
> >>>
> >>> How is it possible to vary in strength depending on which
> >>> direction it is leaving the beam?
> >>
> >> I suppose the answer is the same as when we asked the same questions in
> >> A level phyics 50+ years ago.  It is one of the paradoxes of
> >> wave/particle duality in simple non-mathematical terms, but we had to
> >> believe those who actually understood the maths.  The same problem
> >> occurs with a torch, especially a very dim one.   You can do experiments
> >> to show the light or other EM radiations is quantised, and other
> >> experiments to show it isn't.   As a non-mathematician I just had to
> >> grow up believing it, since I'm not in a position to refute the
> >> evidence.  No homespun analogy is going to convince the physicists
> >> otherwise.
> >>
> > 
> > 
> > It isn't nearly as difficult to 'visualise' without maths as you may think.
> 
> I have had no such thoughts.
> 
> > Photons can be considered a 'packets' of energy' (remember we are trying 
> > to keep it simple at the moment).
> 
> Are we trying to keep it simple? That's news to me.
> 
> < non sequitur paragraph elided >
> 
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